N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 1 Phn I : KCH THC KHUNG NGANG I.S liu: 1.S liu chung : Cu to mi lp: -Lp gch nem dy 2 cm. -Lp va lt dy 4 cm -Lp chng thm 2 giy,3 du c trng lng 20 daN/cm2 -Lp chng thm dy 5cm -Vt liu thp c R= 21E4 kN/m2 , E=21E7 kN/m2 , =0.3, =78.5kN/m2 -Panel lp bng mi BTCT c trng lng 150daN/cm2 2.S liu bi: H(m)L (m)B (m)Q (T)G 12.5369030III-A S liu thit k: -Nhp khung :L = 36 (m) -Bc ct : b = 6 (m) -Cao trnh nh ray :H1 = 12.5 (m) -Sc nng cu trc:Q = 300 (kN) -p lc vng gi :III-A II.Chn s b kt cu : 1.Xc nh kch thc theo phng ng : -Theo s liu ta chn c cu trc : oLoi ray thch hp :KP-70 KIEU RAY BE RONG MAT RAY BE RONG E RAY HF MOMEN QUAN TNH K.LNG MET DAIJx Jy mmcm2cm4daN KP707012012067.31081.99327.1652.83 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 2 oChiu cao:Hk = 2750 (mm) oB rng cu trc :Bct = 6300 (mm) oNhp cu trc :Lk = 31.5 (m) oKhong cch gia hai trc bnh xe cu trc : K = 5.1 (m) oKhong cch t tim ray n mp ngoi : B1= 300 (mm) oChiu cao t mt ray n kt cu chu lc (cnh di ca dn): Ta ly :f=300 (m) => H2 = Hk+100+f = 2750+100+300 = 3150 (mm) oChiu cao ca xng,t nn n y v ko :H = H1 + H2 = 12.5+3.15=15.65 (m) Chn H l bi s ca 1.8m theo QPXD 57-73,chn :H =16.2 (m) oKch thc tht ca ct trn Ht t vai dm cu trc n d v ko : Ht = H2 + Hdct + Hr Trong : Hdct = 0.6 (m) : chiu cao dm cu trc,s b chn khong (1/8-1/10) bc ct ; Hr : chiu cao ray v m ,s b chn Hr = 200 (mm) Vy : Ht = 3.15 + 0.6 + 0.2 = 3.95 (m) , chn Ht= 4 (m) oChiu cao phn di ct tnh t bn chn ct (t mt mng) n ch i tit din : Vi : H3 l phn ct chn bn di ct mtnn ; H3= 0 Hd = H - Ht + H3 = 16.2- 4 + 0 = 12.2 (m) N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 3 0.00+18.4Q=30(T)3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000122004000220012002500600S OKHUNG NGANG TL:1/200A36000B3000+16.2+12.2+20.2+22.7 2.Xc nh kch thc theo phng ngang : -Cu trc lm vic theo ch bnh thng , Q < 70(T) nn ta chn : a = 250(mm). -B rng phn ct trn: ht = (1/10 1/12)Ht , chn ht = 400 (mm). - cu trc khi chuyn ng khng chm vo ct,khong cch t trc ray n trc nh v phi m bo ln : B1 + (ht-a) + D Trong :B1 : phn u cu trc bn ngoi ray,ly theo catalo. D: khe h an ton gia cu trc v mt trong ct ; ly bng 60-75 (mm) ; Chn : D = 70 (mm) Vy: = 300 + (400-250) + 70 = 520 (mm). -B rng ct di : hd = a + = 250 + 520 =770 (mm) N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 4 Do yu cu cnghd(1/15 1/20)H ; l bi s ca 250 tin cho vic thi cng . Chnhd = 1000 (mm).Vy = 750 (mm). -Nhip ca miLcm=(1/21/4)L = (918) m, chnLcm= 12 (m). -Khong cch gia cc nt dn : Chn mi lp bng tm panel BTCT c kch thc 1.5x6 (m) . Khi phi s dng h dn v ko c h thanh bng nh. oKhong cch gia cc nt ca thanh cnh di :3 (m). oKhong cch gia cc nt ca thanh cnh trn :1.5 (m). -Chn chiu cao u dn mi l : 2.2 (m) III.B tr li ct v h ging : 1.H ging mi : Hegiangmaibaogomcacthanhgiangbotrtrongphamvitcanhdi dantrlen.cbotrnamtrongcacmatphangcanhtrendan,mat phang canh di dan, mat phang ng gia cac dan. a.He giang trong mat phang canh tren : Giangtrongmatphangcanhtrengomcacthanhcheochthaptrongmat phangcanhtrenvacacthanhchongdocnha.Tacdungchnhlaonnh chothanhcanhtrenchunencuadan,taonennhngiemcoketkhong chuyen dch ra ngoai mat phang dan. Thanhchongdocnhadungeconhnhngnutquantrongcuanha:nut nh noc dan, nut au dan, nut di chan ca mai. 2503001000400 300750 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 5 b.He giang trong mat phang canh di : Giang trong mat phang canh di c at tai v tr co giang canh tren. No cung vi giang canh tren tao mot khoi cng khong gian bat bien hnh. He giangcanhditaiauhoinhadunglamgoitachocothoi,chutai trong gio thoi tren tng hoi, nen con goi la dan gio. V cau truc cua nha co sc truc Q = 50 (T) nen co them he giang canh di theo phng doc nha. He giang nay am bao s lam viec cung nhau cung nhau cua cac khung, truyen tai trong cuc bo tac dung len mot khung sang cac khung lan can. 6000600060006000600060006000 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000900006000 60004 3 2 1 444 5 6 7 8 9 10 11 12 13 14 15 16H GING CNH TRN6000600060006000600060006000 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000 6000900006000 60004 3 2 1 444 5 6 7 8 9 10 11 12 13 14 15 16H GING CNH DUOI N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 6 S OBOTR HEGIANG COT TL:1/50022004000122006000 6000 36000 6000900003600011 12 13 3 1 2 4 5 6 7 9 8 10 14 15 16c.He giang ng : He giang ng at trong mat phang cac thanh ng, co tac dung cung vi cac giang nam tao nen khoi cng bat bien hnh, gi v tr va co nh cho dan v keo khi dng lap 2.He giang cot : He giang cot bao am s bat bien hnh hoc va o cng cua toan nha theo phng doc nha, chu tai trong tac dung theo phng doc nha va am bao on nh cot. N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 7 1750KNHBAU CA THEP HNHDAN CA MAIDAN VAHEGIANG THEPCAC LP MAITAM PANEL BTCT1,5X6 mLP CACH NHIETBANG BETONG XLP XI MANG LOT1.5 c mLP CHONG THAM 2 GIAY + 3 DAU2 LP GACH LANEM VAVA LOTi=1/ 10i=1/ 102200 Phn II : TI TRNG TC DNG LN KHUNG NGANG I.Ti trng tc dng ln dn : 1)Ti trng thng xuyn : Ti trng thng xuyn ca cc lp mi: Ti trng do cc lp mi g tc (daN/m2) g tc (kN/m2)n g tt (kN/m2) Lp gch men dy 2cm400.41.10.44 Lp va lt dy 4 cm720.721.20.864 Lp chng thm 2 giy+3 du200.21.20.24 Lp chng thm dy 5cm1251.251.21.5 Panel lp bng mai BTCT1501.51.11.65 TNG 4.07 4.69 Khi i ti trng phn b u trn b mt vi dc i=1/10,chia cho Cos = 0.995 4.074.090.995cmg = =(kN.m2) ; 4.074.720.995tmg = =(kN/m2) Trng lng bn thn dn v h ging : N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 8 -Theo cng thc kinh nghim : gcd = 1.2dL Trong :-d = 0.9 : h s trng lng bn thn dn,ly bng 0.6-0.9 i vi dn nhp t 24-36 m. -H s k n trng lng bn thn cc thanh ging : 1.2 gcd = 1.2*0.9*36 = 38.88 (daN/m2) = 0.39 (kN/m2) -H s vt ti n = 1.1 => gtd= 0.43 (kN/m2) Trng lng kt cu ca mi: -Theo cng thc kinh nghim: gccm = cm.Lcm Trong : -ct = 0.5 ; Lcm=12 (m) : nhp ca mi (m) - tnh chnh xc hn ti trng ca nt dn ta chn tr s 12-18 daN/m2,ta chn : gccm = 15 (daN/m2) = 0.15 (kN/m2) gtcm= 1.1* gccm= 1.1*0.15 = 0.165 (kN/m2) Trng lng cnh ca mi v bu ca mi: Theo kinh nghim, trng lng bu ca : 100-150 (daN/m). -Trng lng bu ca trn v di : gcb = 120 (daN/m2) = 1.2 (kN/m). Trng lng ca knh v khung cnh ca: 35-40 (daN/m2)=> chn gck= 0.4 (kN/m2). Ti trng tp trung chn ca tri (ti nt dn) : Gkb=1.1(gck *1.5 * 6 + gcb* 6) = 1.1*(0.4*1.5*6 + 1.2*6) = 11.88 (kN) Lc tng ng phn b u trn mt bng nh: * * 2* 0.165*12*6 2*11.880.165* 36*6tttd cm cm kbcmg L b GgL b+ += = =(kN/m2) Vy ti trng phn b u tc dng ln khung ngang l : ( ) * (4.72 0.43 0.165) *6 31.86t t tdm d cmg g g g b = + + = + + =(kN/m) 2)Ti trng tm thi (Hot ti sa cha trn mi) : Ti trng tam thi do s dng trn mi ly theo nhim v thit k.Khi khng c yu cu c bit th ly theo TCVN 2737-1995. -Ly ptc = 75 (daN/m2) = 0.75 (kN/m2) vi h s vt ti n = 1.3 Ti trng tm thi tnh ton tc dng ln khung ngang : * 1.30.75* *6 5.88cos 0.995tt cn bp po= = =(kN/m) 3)Ti trng tc dng ln ct: Do phn lc ca dn: -Ti trng thng xuyn : N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 9 * 31.86*36573.512 2q LA = = =(kN) -Ti trng tm thi : * 5.88*36' 105.832 2p LA= = =(kN) Do trng lng ca dm cu trc : Trng lng ca dm cu trc tnh s b theo cng thc :2. .dct dct dctG n l o =Trong : -ldct = b = 6 (m) :nhp dm cu trc ; -dct= 30 : h s bn thn dm cu trc ly t 24-37 vi cu trc sc trc trung bnh (Q k = 1.252 -Ti cao trnh nh ca mi :Hdcm= 22.7 (m)=>k = 1.312 oNi suy h s ng C1 : h/L 00.450.5 00 -0.6 60.06-0.49-0.54 200.2 -0.4 C1= -0.49 V b/L = 90/36 = 2.5 > 2 v h/L = 16.2/36 = 0.45 < 0.5 nnC3= -0.5 Vy ta c : q = 1.1*1.3*1.1*1.252*0.8*6 = 9.45 (kN/m) q = 1.1*1.3*1.1*1.252*0.5*6 = 5.91 (kN/m) Trong khongt cao y dn v ko n nh ca mi th h s k c ly trung bnh: 1.252 1.3122k+= =1.282 Gi trong phm vi mi,t y v ko tr ln,c chuyn thnh lc tp trung nm ngang t ti cao trnh y dn v ko : -Pha tri gi (gi ht) :0* * * * * 1.3*1.1*1.282*6*(2.2*0.8 1.2*( 0.49) 2.5*0.7 0.6*( 0.8)) 26.86i iW n W k b c h = = + + + =-Pha tri gi (gi ht) : ' '0* * * * * 1.3*1.1*1.281*6*(2.2*( 0.5) 1.2*( 0.6) 2.5*( 0.6) 0.6*( 0.6)) 40.48i iW n W k b c h = = + + + = N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 14 g=31.86 kN/mp=5.88 kN/mq = 9.54 kN/mA=573.48 kNA'=105.84 kNW=26.86 kN W'=40.48 kNq' = 5.91 kN/mDmax = 716.04 kNDmin = 253.6 kNMmax = 363.96 kN.mMmin =132.74 kN.mT = 20.88 kNG (dct+r)= 15.37 kNGc = 42.35 kNA=573.48 kNA'=105.84 kNGst = 61.38 kN Phn III : NI LC TRONG KHUNG NGANG N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 15 I.GIAI KHUNG TM NOILC VA TO HP TAI TRONG TNH TOAN : A/ S o Tnh Khung Ngang: 1)Cac gia thiet: -engiansotnh,thaydanvkeobangxangangaccoo cng tng ng at tai thanh canh di dan. Chieu cao tnh toan tnh t chancotdienthanhcanhdidan.Nhptnhtoanlakhoang cach gia 2 truc trong tam cua cot tren.. -Khitnhtoankhungoixngvitaitrongthangngoixngtac dungtrctieplenxangang(nhgvap)thchuyenvngangratnho co thebo qua, luc o ch con anso la goc xoaytailien ket gia dan va cot.-Khi tnh khung vi tai trong khong phai thang ng tac dng trc tiep lenxangang(nhDmax,Dmin,T,W,W,q,q)thxemxanganglacng vo cung, luc o ch con an so la chuyen v ngang. 2)S o tnh khung ngang: Khi giai khung ta tm noi lc tai 4 tiet dien : A , Cd , Ct , B B/Tnh toan noi lc trng hp ien hnh bang phng phap chuyen v : 1)S Bo Chon Ty So o Cng Gia Cac Bo Phan Khung : Lap cac t so: Da theo kinh nghiem J1 : J2 = 7 10 nen chon 1210JJ= N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 16 Da theo kinh nghiem Jd : J2= 25 40 nen chon 235dJJ=Kiem tra ieu kien: 61 1.1vq>+ Trong o: 1116.2: * 3.5* 1.57536d dJ J J HL H J Lv = = = =121 10 1 9JJq = = =v= 1.575> 61.41 1.1* 9 =+ . Vay thoa ieu kien e xa ngang co o cng vo cung. 2)Tnh Khung Vi Tai Trong Phan Bo eu Tren Xa Ngang : Dungphngphapchuyenv,ansolagocxoay 1 , 2 va1chuyenv ngangAnhcot.Trnghpaylakhungoixng,taitrongoi xng nen 1= 2= ,A = 0 . An so con lai la 2 goc xoay 2 nut khung. Phng trnh chnh tac:01 11= +pR rTrong o: r11 la tong momen phan lc tai nut khung khi goc xoay= 1 R1p la tong momen phan lc tai nut khung do tai trong ngoai gay ra. qBCA N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 17 etmr11,cantnh xaB M va cotB M lacacmomennutcngBcuaxava cot khi 2 nut cua khung cung xoay= 1. 112 2 3.50.236xadBEJ E JM EJL= = =oivithanhcotietdienthayoi(cotbac),th cotB M ctnhdavao cong thc cho trong bang III.1 Phu luc III sch THIT K KT CU THP NH CNG NGHIP ca tc gi on nh Kin. HEJkCMB1cot 4 =Trong o: 121 10 1 9JJ = = =40.2516.2tHHo = = =A = 1 +o= 1 + 0.25 * 9 = 3.25 B = 1 + o2= 1 + 0.252 * 9 = 1.56 C = 1 + o3= 1 + 0.253 * 9= 1.14 F = 1 + o4= 1 + 0.254 * 9 = 1.04 k = 4AC 3B2 = 4*3.25*1.14 3*1.56 2 = 7.52 cot114*1.140.0377.52 16.2BEJM EJ = = Qui c momen dng la momen lam cang th ben trong cua cot va dan r11 = xaB M- cotB M= (0.2 + 0.037)EJ1 = 0.237EJ1

2 2131.86*363440.8812 12pP BgLR R = = = = (kN.m) Giai phng trnh chnh tac: 111 1 1( 3440.88) 14518.480.237pRr EJ EJ= = =Momen cuoi cung c tnh nh sau: * nh cot: cotcot1114518.48* 0.037 * 537.18 BBM M EJEJ = = = (kN.m) 1 1114518.48* 0.2 * 3440.88 537.18xaxaBB pM M R EJEJ = + = = (kN.m) * vai cot: N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 18 1 12 216 6*1.56 14518.48* * * 68.867.52 16.2BBEJ EJ BR Rk H EJ = = = = (kN) cot* 537.18 68.86*4 261.74c B B tM M R H = + = + = (kN.m) * chan cot: cot* 537.18 68.86*16.2 578.35A B BM M R H = + = + = (kN.m) Momen phu sinh ra do lech tam gia truc cot tren va truc cot di : 1 0.4* * 573.48* 172.042 2d treh hM A e A = = = =(kN.m) Khung oi xng, tai trong A oi xng nen co the xem xa ngang co o cng vo cung va khong co chuyen v ngang. Noi lc trong khung do Me gay ra co thetmcdavaocongthctrongbangIII.2Phulucoivicot2au ngam. Dau Me ngc vi dau trong bang. 2 2(1 )[3 (1 ) 4 ] (1 0.25)[3*1.56(1 0.25) 4*1.14]*172.04 22.14( . )4 3 4*3.25*1.14 3*1.56tB eB CM M kN mAC Bo o + + = = = 2 26(1 )[ (1 )] 6(1 0.25)[1.56 3.25(1 0.25)] (172.04)* 15.94 3 4*3.25*1.14 3*1.56 16.2t eBM B ARAC B Ho o + += = = (kN) ' '15.9( )p tB BR R kN = =* 22.14 ( 15.9) *4 41.46tC B B tM M R H = + = + = (kN.m) 41.46 172.04 130.58d tC C eM M M = = + = (kN.m) * 130.58 ( 15.9) *12.2 63.4dA C B dM M R H = + = + = (kN.m) -537.18-537.18-261.74578.35ABCM'g22.14-41.46130.58-63.4ABCMA N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 19 Momensinhradotronglngdamcautruc,ray,cottren,sn tng: 1* * 15.37* 7.692 2ddct r dct r dct rhM G e G+ + += = = =(kN.m) 1 0.4* * 8.8* 2.642 2t t t d tc c ch hM G e G = = = =(kN.m) 1* * 61.38* 30.69( . )2 2dst st sthM G e G kN m = = = =Tong hp cac momen lai ta c momen tac dung len cot: 30.69 2.64 7.69 25.64( . )ttt st c dct rM M M M kN m+= + = + =NoilckhungtmcbangcachnhanvibieuoMAheso 25.640.15172.04tteMM= =(v 2 momen nay at tai cung 1 v tr va cung chieu nhau). MB = 22.14* 0.15=3.32 (kN.m) tCM = -41.46 * 0.15 =-6.22 (kN.m) dCM = 130.58 * 0.15 = 19.59(kN.m) MA = -63.4* 0.15 =-9.51(kN.m) Trong lng cua dam cau truc, ray, cot tren, sn tng va A la tai trong thng xuyen nen ta co the cong bieu o momen do Mtt va MAgay ra trc tiep vi bieu o noi lc do g gay ra len dan va cot. 3.32-6.2219.59-9.51ABCMtt N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 20 -92.71-54.5892.69ABCMp -23.61 3)Tnh Khung Vi Tai Trong Tam Thi Tren Xa Ngang: Tacongaybieuonoilcdotaitrongtamthigayrabangcachnhan bieuonoilccuataitrongthngxuyen(Mg+MA)viheso 5.880.1831.86pg = = ( 537.18 22.14)*0.18 92.71BM = + = (kN.m) ( 261.74 41.46) *0.18 54.58tCM = = (kN.m) ( 261.74 130.58) *0.18 23.61dCM = + = (kN.m) (578.35 63.4)*0.18 92.69AM = =(kN.m) 4)Tnh Khung Vi Momen Cau Truc Mmax , Mmin : Mmax , Mmin ong thi tacdung 2 cot. ayMmax xuat hien cot trai, Mmincotphai.Giaikhungbangphngphapchuyenvvixangangco o cng vo cung, an so ch con chuyen v ngang cua nut. Phng trnh chnh tac: r11*A + R1p = 0 -511.72-309.42505.44ABC-111.57-511.72-309.42505.44ABCMg-111.57 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 21 1.24-0.04-3.96ABCMTrong o:-r11laphanlccualienketthemvaotainutkhungdonutco chuyen v n vA=1. -Dau cua phan lc va chuyen v tai lien ket themtheo qui c chieu t trai sang phai la dng.

Dung bang III.1 Phu luc tnh c momen va phan lc ngang au cot B: 1 1 12 2 2 2 26 6*1.56* 1.24*4 3 4*3.25*1.14 3*1.56BEJ EJ EJ BMAC B H H H= = = (kN.m)

1 1 12 3 2 3 312 12*3.25* 5.2*4 3 4*3.25*1.14 3*1.56BEJ EJ EJ ARAC B H H H = = = (kN) BieuomomendoA=1gayraconcdungvicacloaitaitrongkhac nh T hay gio nen ta tnh luon momen tai cac tiet dien cua cot: -Tiet dien vai cot: 1 1 12 2 21.24 5.2 0.04 4* *16.2C B BtEJ EJ EJM M R HH H H= + = + = (kN.m) -Tiet dien chan cot: 1 1 12 3 21.24 5.2 3.96* * A B BEJ EJ EJM M R H HH H H= + = + = (kN.m) oivicotbenphai,momenvaphanlccogiatrgiongcotbentrai nhng khac dau. Ta co bieu o noi lc cua khung khi choA=1 : = 1 M R B B A C B = 1 12EJH12EJH12EJH N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 22 1p R R B'B R = 1 -46.94-276.83134.41 ABC MD87.9-17.05-100.5548.82 AC31.92O Catngangkhungtaiaucotcolccatroichieuxuongphngngangtatm c r11: 1 111 3 22 2*( 5.2* ) 0.64* B B BEJ EJr R R RH H= + = = = (kN) BieuonoilcdoMmax,Mmingayratronghecbancxacnhbang cachnhanbieuonoilcdoMAgayraviheso max363.962.12172.04eMM = = va min132.740.77172.04eMM = = (v Mmax va Mmin at cung v tr vi Me nhng ngc chieu). - oi vi cot trai (Mmax) : 22.14*( 2.12) 46.94BM = = (kN.m) 41.46*( 2.12) 87.9tCM = =(kN.m)130.58*( 2.12) 276.83dCM = = (kN.m) 63.4*( 2.12) 134.41AM = =(kN.m) 15.9*( 2.12) 33.71BR = = (kN)- oi vi cot phai (Mmin):'22.14*( 0.77) 17.05BM = = (kN.m) '41.46*( 0.77) 31.92tCM = =(kN.m) '130.58*( 0.77) 100.55dCM = = (kN.m) '63.4*( 0.77) 48.82AM = =(kN.m) '15.9*( 0.77) 12.24BR = = (kN) = 1 R BB' R r 11 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 23 R1p = 33.71 + (-12.24) = 21.45 (kN) Giai phng trnh chnh tac: 2 2111 1 121.45 33.520.64pRH Hr EJ EJA = = = NhanbieuoM doA=1gayraviAvatmcsauocongvibieu o noi lc Mp ta c bieu o noi lc cuoi cung: oD DM M M + A = *- oi vi cot trai: 212133.521.24 * ( 46.94) 5.38BEJ HMH EJ= + = (kN.m) 212133.520.04 * 87.9 86.56tCEJ HMH EJ= + =(kN.m) 212133.520.04 * ( 276.83) 278.17dCEJ HMH EJ= + = (kN.m) 212133.523.96 * 134.41 1.67AEJ HMH EJ= + =(kN.m) - oi vi cot phai: 21' 2133.521.24 * ( 17.05) 58.61BEJ HMH EJ= + = (kN.m) 21' 2133.520.04 * 31.92 33.26tCEJ HMH EJ= + =(kN.m) 21' 2133.520.04 * ( 100.55) 99.21dCEJ HMH EJ= + = (kN.m) 21' 2133.523.96 * 48.82 181.56AEJ HMH EJ= + =(kN.m) N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 24 5)Tnh Khung Vi Lc Ham Ngang T : TaxetlcTcottrai,hngttraisangphai.Giaikhungbangphng phap chuyen v vi xa ngang co o cng vo cung, an so ch con chuyen v ngang cua nut. Phng trnh chnh tac: r11*A + R1p = 0 Trong o:-r11 la phan lc cua lien ket them vao tai nut khung do nut co chuyen v n vA=1. -Dau cua phan lc va chuyen v tai lien ket themtheo qui c chieu t trai sang phai la dng. -5.38-278.271.67ABCMD86.56-58.61-99.21181.56AC33.26 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 25 BieuoM do1 = A gayragiongnhtrnghptaiDmax,Dminnentacung xac nh c: 1 111 3 22 2*( 5.2* ) 0.64* B B BEJ EJr R R RH H= + = = = (kN) Dung cong thc trong phu luc III.2 e tnh c momen va phan lc tai au cot B, B . Lc T at cach nh cot la a = 4-0.6 = 3.4(m) .

H TB ACC B C BMB* *3 4] 2 ) 2 [( ) ( ] 2 ) 2 [( ) 1 (22 2 + + + = o o MB =- 32.02(kN.m) TB ACA B A BRB*3 4)] 2 ( 2 3 [ ) ( )] 2 ( 2 3 [ ) 1 (22 2+ + + = o o RB = 16.78(kN) ( )*( ) 32.02 16.78 (4 0.6) 25.03( )T B B t dctM M R H H kN = + = + =* * 32.02 16.78 4 20.88 0.6 22.57( )C B B t dctM M R H T H kN = + = + =* *( ) 32.02 16.78 16.2 20.88(0.6 12.2) 27.45( )A B B dct dM M R H T H H kN = + + = + + = CMT25.03o-32.0222.57-27.45AB = = = = Chon chieu cao dam vai : hdv= 70 (cm) Chieu cao ban bung dam vai : hbdv = hdv 2 1 = 70 2 1 = 67 (cm) lh =32.97(cm) < hbdv = 62 (mm) . Thc te ta s dung 4 ng han eu dai bang hbdv (chay suot chieu cao ban bung) nen ca 4 ng han eu am bao chu lc. Ban K xe ranh e ban bung dam vai i qua. Ban K lien ket vi ban bungdamvaibang4nghangoccao8(mm),daibanghbdv=670 (mm)(bang chieu cao ban bung dam vai), kha nang chu lc cua 4 ng han nay la: 4 4 0.7 0.8 (67 2 0.5) 1800 266112hh h gh l R | = =(daN)= 2661.12 (kN)> Ntr = 1196 (kN) = > 4 ng han u kha nang chu lc KiemtraieukienchuuoncuadamvaitaitietdiencoMmax =299 (kN.m).engiantnhtoan,tachikiemtrakhanangchuuoncuaban bung dam vai Tiet dien tnh toan: hdv = 67 cm odv = 2 cm 2 232 671496( )6 6dv dvhW cmo = = =42 max299 101998( / )1496MdaN cmWo= = =< R = 2300 (daN /cm2) = > u kha nang chu lc. Cacnghannganglienketbancanhtren,canhdiviban bung cua dam vai eu lay theo cau tao. c)Tnh chan cot rong : N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 47 Capnoilcetnhtoanchancotvanlacapnoilctnhtoantiet dien cot di: M1=-440.73 (kN.m) va N1 = 1398.72(kN) ; M2 = 1558.57(kN.m) va N2 =1432.27 (kN) =ctnhN1267.75 (kN) ,=mnhN2206.6 (kN) Tnh toan ban e : Betong mong Mac 150 co Rn = 11.5 MPa =115 (daN/cm2) Gia thiet he so tang cng o do nen cuc bo Betong mat mong la: 3 1.2mcbbdAmA= =Rncb = mcb x Rn = 1.2 x 115 = 138 (daN/cm2) Dien tch yeu cau cua ban e nhanh cau truc : 126775918.7138ctbd nhnhctncbNAR= = =(cm2) Dien tch yeu cau cua ban e nhanh mai : 2206601599138mbd nhnhmncbNAR= = =(cm2) Be rong B cua ban e lay theo yeu cau cau tao : B = b + 2* = + Cdd* 2 o 40 + 2 x 1 + 2 x 5 = 52 (cm) chon B = 52 cm Vi ddo= 10 (mm) la chieu day dam e. C = 50 (mm) la phan nho ra cua ban e. Chieu dai cua ban e nhanh cau truc: 918.717.752bdbd nhctnhctALB= = =(cm). Chon30bdnhctL =(cm) Chieu dai cua ban e nhanh mai: 159930.7552bdbd nhmnhmALB= = =(cm). Chon36bdnhmL =(cm) ng suat thc te ngay tai di ay mong: 12677581.330 52ctnhnhct ctnhNAo = = = (daN/cm2) < Rncb = 138 (daN/cm2) 220660117.936 52mnhnhm mnhNAo = = = (daN/cm2) < Rncb = 138 (daN/cm2) N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 48 Tnh be day ban e: Baneccacsnngan,dame,nhanhcotchiathanhnhngoco bien ta khac nhau.Theo cac cac kch thc canh o, loai o, tnh momen uon trong cac o nay ( ch tnh cac o ban ai dien) + Tnh cho nhanh mai: O 1: co b2 = 21.02 (cm), a2 = 20.5 (cm) Ty so : 2221.021.0320.5ba= =. Noi suy co = 0.113 Mo1 =o *nhmo *d2 = 0.113 * 117.9 * 20.52 = 5599 (daN.cm) Chieu day ban e tnh theo cong thc:max6 6 55993.822300 1nhmbdMRo> = = (cm) Chon nhmbdo= 4.0 (cm) + Tnh cho nhanh cau truc: O co kch thc ln nhat la : b2 = 15 (cm), a2 = 20.5 (cm) Ty so 22150.7320.5ba= =. Noi suy c o= 0.091 Mo= o *nhcto *d2 = 0.091 * 81.3 * 20.52 = 3109.1 (daN.cm) VMct < Mm nen lay= = =bdnhctbdnhmbdo o o4 (cm) Tnh toan kch thc dam e : N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 49 Toan bo lc Nnh t nhanh cot truyen xuong ban e thong qua 2 dam e va 2snngan.Vvay,damechutacdungcua nho theodientruyentai vao dam e. Tai trong tac dung len 1 dam e cua nhanh mai : 42 42(5 ) (5 )117.9 1827.54 4dd nhmq o = + = + =(daN/cm) Tong phan lc tac dung 1 dam e la: Ndd = qdd * ldd = qdd *1827.5 36 65790bdnhmL = =(daN) LcNdddo2nghansongvagoclienketdamevithepgoccua nhanh mai phai chu.Giathietchieucaonghansonghhs=12(mm),nghanmephhm=10 (mm). Chieu dai 2 ng han can thiet la : min12.5 3.37 65790* * 31.78( ) 12.5 1.2*0.7*1800g gddychsg hs gb aNlb h R |= = =(cm) min3.37 65790* 14.1( ) 12.5 1*0.7*1800gddychmg hm gaNlb h R |= = =(cm) Chon chieu cao dam e la 40 (cm) co kch thc tiet dien la 400 x 10 (mm). Cho 2 ng han song va mep chay suot chieu cao dam elhs = lhm = 40 (cm) -Kiem tra dam e nhanh mai ve cat va uon : Dam e lam viec nh 2 congxon, oan dai ngam vao ng han song, oan ngan ngam vao ng han mep. Chon oan congxon dai e tnh toan chu uon va cat cho dam e. Nhp tnh toan dam e: ddl= 169.8 (mm) Tai ngam co lc cat va momen ln nhat nen ta dung e tnh toan kha nang chu lc cho congxon: 2 21827.5 16.98263452.82 2dd ddddq lM = = =(daN.cm) 1827.5 16.98 31031dd dd ddQ q l = = =(daN) 21 40266.76ddW= =(cm3) 263452.8987.8266.7ddddddMWo = = =(daN/cm2)< R = 2300 (daN/cm2) N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 50 31031775.8F 40 1ddddddQt = = = (daN/cm2)< R = 1800 (DaN/cm2) ng han mep u kha nang chu lc. Tnh sn ngan A:(sn ngan nhanh mai )Xemsnnganlacongxonngamtainghangoclienketviban bungcuanhanhmai.Xetsnngancochieudailsn=190.2(mm)etnh toan. Tai trong do dien truyen tai cua ban e tac dung len sn ngan : qsn = 20.5 *117.9 = 2417 (daN/cm) Tai ngam co momen va lc cat ln nhat, nen ta dung e kiem tra: 2 22417 19.02437187.42 2sn snsnq lM = = =(daN.cm) 2417 19.02 45971.3sn sn snQ q l = = =(daN) Chiu cao ng hn tnh theo cong thc : 6 6 437187.433.77. . 1 2300 1snsnsnMhR o = = = (cm) Chon kch thc sn ngan la 400 x 10 (mm). Kiem tra sn ngan ve uon v ct : 21 40266.676snW= =(cm3) 437187.41639.4266.67snsnsnMWo = = =(daN/cm2)< Rbtc = 2300 (daN/cm2) 45971.31149.340 1snsnsnQFt = = = (daN/cm2)< Rc = 1800 (daN/cm2) -Tnhnghanlienketsnnganvibanbungnhanhmaicotdi. Lay chieu cao ng han la hh = 10 (mm), chieu dai lh = 400 (mm) ( han chay suot chieu cao sn ngan). Kha nang chu lc cua ca 2 ng han la: 2 2 2 2 22437187.4 45971.3( ) ( ) ( ) ( ) 1480.3( / )1 (40 1) 2 0.7 1 402 0.76sn sntdh hM QdaN cmW Ao = + = + = 2 21480.3( / ) 1800( / )td ghdaN cm R daN cm o => = > =Tnh Bulong neo va ban Bulong neo : -Nhanh cau truc : N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 51 -Bulongneotnhvitohptaitronggaykeolnnhatgiacotva mongtaitietdienA :(tohpcomomendnglnnhatvalcdoc tng ng be nhat ) MA= 1558.57 (kN.m)vaNA = 1432.27 (kN) -Noi lc tiet dien chan cot do hoat tai gio gay ra :( Tai trong thng xuyenthnglagiamlckeotrongBulongneonenkhitnhtachonhe so vt tai la 0.9.) Mg = 670.27 (kN.m)vaMg = -763.49 (kN.m). Cap noi lc gay keo ln nhat : 11558.570.9 670.27 1945.5( . )1.1Ab gtMM n M kN mn= + = + =Taitrongthngxuyenthnglamgiamlckeotrongbulongneonenta chon he so vt tai nb = 0.9. 11432.270.9 1171.9( )1.1AbtNN n kNn= = =Lc keo trong bulong chan cot : 1 1 11945.5 0.5639 1171.91324.7( )0.9698ctblM y NN kNC E = = =Chon bulong cap o ben 6.6vi2 bulong. = >Rneo = 2500 (daN/cm2) Dien tch tiet dien can thiet cua 1 bulong neo : 221324.7 1026.5( )2 2500ctblneoo vbNA cmn RE = = = = > Chon bulong : 264 (Abl =32.2 cm2) -Nhanh mai : -Bulong neo tnh vi to hp tai trong gay keo ln nhat gia e cot nhanh mai va mong tai tiet dien A co momen am ln nhat va lc doc nho nhat.Tai trong thng xuyen thng la giam lc keo trong bulong neo nen khi tnh ta chon he so vt tai la 0.9. MA = -342.88 kN.m NA = 692.58 kN Cap noi lc gay keo ln nhat : ''2342.880.9 763.49 483( . )1.1Ab gtMM n M kN mn= + = = N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 52 '2692.580.9 566.7( )1.1AbtNN n kNn= = =Lc keo trong bulong chan cot : 2 2 2483 0.4059 566.7260.9( )0.9698ctblM y NN kNC E = = =Dien tch tiet dien can thiet cua 1 bulong neo : 22260.9 105.2( )2 2500ctblneoo vbNA cmn RE = = = = > Chon bulong : 227 (Abl =5.72 cm2) -Ban ngang bulong neo : Lc keo mot bulong tac dung len ban : 1324.7662.35( )2ctb blbloNN kNnE= = =Ban ngang bulong neo lam viec nh dam n gian 2 goi ta co nhp tnh toan bang khoang cach 2 sn : l = 100 (mm) Chon kch thc ban ngang : 180x100x50 (mm) => 2662.35 10 10165587.5( . )4 4bblN lM daN cm = = = =>2 22165587.52207.8( / ) 2300( / )5 186MdaN cm R daN cmWo = = = < = => Ban ngang u kha nang chu lc. -Sn bulong neo : Chon kch thc sn : Day sd = 10 (mm) Dailsd= 180 (mm) Cao hsd= 400 (mm) Snbulongneolagoitamotbencuabanngangnenphaichu keo : 2662.35 1033117.5( )2 2bs blblNN daN= = =Ta co : Qy =33117.5( )sblN daN = => 1833117.5 298058( . )2 2s sdbllM N daN cm = = =Kiem tra tiet dien sn : N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 53 2298058 61118( . ) 2300( . )1 40MdaN cm R daN cmWo = = = < = Kiem tra ng han lien ket sn vi dam e, chon ng han co kch thc : -Cao : hh = 12 (mm) -Dai :lh= 400 (mm) Kha nang chu lc cua 2 ng han : 2298058 614000.7 1.2 (40 1)sdhMW= = => 2 22 2 21400 1011 1727( / )ysdtdh hQMdaN cmW Ao| | | |= + = + = ||\ . \ . = > td = 1526.8 (daN/cm2) < Rgh = 1800 (daN/cm2) nen ng han u kha nang chu lc. Phn V : THIT K DN I.TNH TOAN CAU TAO DAN : 33117.510110.7 1 (40 1)yhQA= = N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 54 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000i=1/1022006000 6000 6000 6000 6000 6000P2P2P2P2P2P2P2P2P2P1P QR S TABCDEFGHIJKLMNOP1P2P21)S o Va Kch Thc Cua Dan : 2)Tai Trong Va Noi Lc Tnh Toan : oTnh tai do trong lng ban than mai : ABCDEFGHIJKLMNOG1G2G2G2G3G4G4G4G3G2G2G2G1P Q R S T Vi nut 1: 13 6G=4.72=42.48(kN)2 2mdBG= Vi nut 2: 2G=3 6 4.72=84.96(kN)mdBG = Vi nut 3:( ) ( )231 84.96G= 3 6 4.72 0.165 86.45(kN)2 2 2 2m cmG dBG G + + = + + =Vi nut 4: ( ) ( )4G= 3 6 4.72 0.165 =87.93(kN)m cmdB G G + = +oHoat tai: Hoat tai sa cha mai co the na trai hoac phai hoac tren ca dan. Gia tr tap trung cua no tac dung len nut dan la.( ay ta ch bo tr cho na gian ben nay, roi sau o lay oi xng cho na gian ben kia) Vi nut 1:135.88 8.82( )2 2mdP p kN = = =Vi nut 2:23 5.88 17.64( )mP dp kN = = = N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 55 oTai gio: 1 10.5 0.5 1.3 1.1 ( 0.49) 1.28 6 1.5 4.04( )oW nq C kBa kN = = = oi vi lc tap trung do gio, do co phng vuong goc vi vi mai nen e mo hnh trong Etabsta phan tch thanh 2 thanh phan lc theo phng thang ng va nam ngang vi goc nghieng i = 1:10 (cos i = 0.995, sin i = 0.104) . oMomen au dan: Do dan lien ket ngam vi cot tren nen co momen au dan. Momen nay chnh la momen tai tiet dien B tai au cot. ng vi moi loai tai trong eu co 1 cap momen au dan. Cach lam ay u nhat la tnh toan vi tng tai trong e tm cap momen nay. e giam bt khoi lng tnh toan ay ta dung phng phap to hp trc cac momen au dan thanh mot so cap va ch tnh toan dan vi mot cap noi lc o. Momen au dan c chon nh sau: Trng hpM (Tm)M t (Tm) TT-511.72-511.72 HT-92.71-92.71 Gio cot trai63.61-107.94 Gio cot phai-107.9463.61 3 24 20.5 0.5 1.3 1.1 ( 0.6) 1.28 6 1.5 4.94( )1.3 1.1 ( 0.6) 1.28 6 1.5 9.88( )ooW nq C kBa kNW nq C kBa kN= = = = = = 2 11.3 1.1 ( 0.49) 1.28 6 1.5 8.08( )oW nq C kBa kN = = = W1W2W2W2W2W2W 3W3W4W4W4W4W4W 1 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 56 Noi lc tnh toan dan : StoryBeamLoadLocPV2V3TM2M3 BASEB1 COMBOEVELOP MAX 0-781.2400000 BASEB1 COMBOEVELOP MAX 0.5-781.2400000 BASEB1 COMBOEVELOP MAX 1-781.2400000 BASEB1 COMBOEVELOP MAX 1.5-781.2400000 BASEB1 COMBOEVELOP MAX 2-781.2400000 BASEB1 COMBOEVELOP MAX 2.5-781.2400000 BASEB1 COMBOEVELOP MAX 3-781.2400000 BASEB1 COMBOEVELOP MAX 3.5-781.2400000 BASEB1 COMBOEVELOP MAX 4-781.2400000 BASEB1 COMBOEVELOP MAX 4.5-781.2400000 BASEB1 COMBOEVELOP MAX 5-781.2400000 BASEB1 COMBOEVELOP MAX 5.5-781.2400000 BASEB1 COMBOEVELOP MAX 6-781.2400000 BASEB1 COMBOEVELOP MIN 0-1012.300000 BASEB1 COMBOEVELOP MIN 0.5-1012.300000 BASEB1 COMBOEVELOP MIN 1-1012.300000 BASEB1 COMBOEVELOP MIN 1.5-1012.300000 BASEB1 COMBOEVELOP MIN 2-1012.300000 BASEB1 COMBOEVELOP MIN 2.5-1012.300000 BASEB1 COMBOEVELOP MIN 3-1012.300000 BASEB1 COMBOEVELOP MIN 3.5-1012.300000 BASEB1COMBOEVELOP4-1012.300000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 57 MIN BASEB1 COMBOEVELOP MIN 4.5-1012.300000 BASEB1 COMBOEVELOP MIN 5-1012.300000 BASEB1 COMBOEVELOP MIN 5.5-1012.300000 BASEB1 COMBOEVELOP MIN 6-1012.300000 BASEB2 COMBOEVELOP MAX 0-5.6900000 BASEB2 COMBOEVELOP MAX 0.5-5.6900000 BASEB2 COMBOEVELOP MAX 1-5.6900000 BASEB2 COMBOEVELOP MAX 1.5-5.6900000 BASEB2 COMBOEVELOP MAX 2-5.6900000 BASEB2 COMBOEVELOP MAX 2.5-5.6900000 BASEB2 COMBOEVELOP MAX 3-5.6900000 BASEB2 COMBOEVELOP MAX 3.5-5.6900000 BASEB2 COMBOEVELOP MAX 4-5.6900000 BASEB2 COMBOEVELOP MAX 4.5-5.6900000 BASEB2 COMBOEVELOP MAX 5-5.6900000 BASEB2 COMBOEVELOP MAX 5.5-5.6900000 BASEB2 COMBOEVELOP MAX 6-5.6900000 BASEB2 COMBOEVELOP MIN 0-35.6600000 BASEB2 COMBOEVELOP MIN 0.5-35.6600000 BASEB2 COMBOEVELOP MIN 1-35.6600000 BASEB2 COMBOEVELOP MIN 1.5-35.6600000 BASEB2 COMBOEVELOP MIN 2-35.6600000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 58 BASEB2 COMBOEVELOP MIN 2.5-35.6600000 BASEB2 COMBOEVELOP MIN 3-35.6600000 BASEB2 COMBOEVELOP MIN 3.5-35.6600000 BASEB2 COMBOEVELOP MIN 4-35.6600000 BASEB2 COMBOEVELOP MIN 4.5-35.6600000 BASEB2 COMBOEVELOP MIN 5-35.6600000 BASEB2 COMBOEVELOP MIN 5.5-35.6600000 BASEB2 COMBOEVELOP MIN 6-35.6600000 BASEB3 COMBOEVELOP MAX 0267.1500000 BASEB3 COMBOEVELOP MAX 0.5267.1500000 BASEB3 COMBOEVELOP MAX 1267.1500000 BASEB3 COMBOEVELOP MAX 1.5267.1500000 BASEB3 COMBOEVELOP MAX 2267.1500000 BASEB3 COMBOEVELOP MAX 2.5267.1500000 BASEB3 COMBOEVELOP MAX 3267.1500000 BASEB3 COMBOEVELOP MAX 3.5267.1500000 BASEB3 COMBOEVELOP MAX 4267.1500000 BASEB3 COMBOEVELOP MAX 4.5267.1500000 BASEB3 COMBOEVELOP MAX 5267.1500000 BASEB3 COMBOEVELOP MAX 5.5267.1500000 BASEB3 COMBOEVELOP MAX 6267.1500000 BASEB3 COMBOEVELOP MIN 0199.9800000 BASEB3COMBOEVELOP0.5199.9800000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 59 MIN BASEB3 COMBOEVELOP MIN 1199.9800000 BASEB3 COMBOEVELOP MIN 1.5199.9800000 BASEB3 COMBOEVELOP MIN 2199.9800000 BASEB3 COMBOEVELOP MIN 2.5199.9800000 BASEB3 COMBOEVELOP MIN 3199.9800000 BASEB3 COMBOEVELOP MIN 3.5199.9800000 BASEB3 COMBOEVELOP MIN 4199.9800000 BASEB3 COMBOEVELOP MIN 4.5199.9800000 BASEB3 COMBOEVELOP MIN 5199.9800000 BASEB3 COMBOEVELOP MIN 5.5199.9800000 BASEB3 COMBOEVELOP MIN 6199.9800000 BASEB4 COMBOEVELOP MAX 0267.1500000 BASEB4 COMBOEVELOP MAX 0.5267.1500000 BASEB4 COMBOEVELOP MAX 1267.1500000 BASEB4 COMBOEVELOP MAX 1.5267.1500000 BASEB4 COMBOEVELOP MAX 2267.1500000 BASEB4 COMBOEVELOP MAX 2.5267.1500000 BASEB4 COMBOEVELOP MAX 3267.1500000 BASEB4 COMBOEVELOP MAX 3.5267.1500000 BASEB4 COMBOEVELOP MAX 4267.1500000 BASEB4 COMBOEVELOP MAX 4.5267.1500000 BASEB4 COMBOEVELOP MAX 5267.1500000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 60 BASEB4 COMBOEVELOP MAX 5.5267.1500000 BASEB4 COMBOEVELOP MAX 6267.1500000 BASEB4 COMBOEVELOP MIN 0196.3800000 BASEB4 COMBOEVELOP MIN 0.5196.3800000 BASEB4 COMBOEVELOP MIN 1196.3800000 BASEB4 COMBOEVELOP MIN 1.5196.3800000 BASEB4 COMBOEVELOP MIN 2196.3800000 BASEB4 COMBOEVELOP MIN 2.5196.3800000 BASEB4 COMBOEVELOP MIN 3196.3800000 BASEB4 COMBOEVELOP MIN 3.5196.3800000 BASEB4 COMBOEVELOP MIN 4196.3800000 BASEB4 COMBOEVELOP MIN 4.5196.3800000 BASEB4 COMBOEVELOP MIN 5196.3800000 BASEB4 COMBOEVELOP MIN 5.5196.3800000 BASEB4 COMBOEVELOP MIN 6196.3800000 BASEB5 COMBOEVELOP MAX 0-8.3200000 BASEB5 COMBOEVELOP MAX 0.5-8.3200000 BASEB5 COMBOEVELOP MAX 1-8.3200000 BASEB5 COMBOEVELOP MAX 1.5-8.3200000 BASEB5 COMBOEVELOP MAX 2-8.3200000 BASEB5 COMBOEVELOP MAX 2.5-8.3200000 BASEB5 COMBOEVELOP MAX 3-8.3200000 BASEB5COMBOEVELOP3.5-8.3200000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 61 MAX BASEB5 COMBOEVELOP MAX 4-8.3200000 BASEB5 COMBOEVELOP MAX 4.5-8.3200000 BASEB5 COMBOEVELOP MAX 5-8.3200000 BASEB5 COMBOEVELOP MAX 5.5-8.3200000 BASEB5 COMBOEVELOP MAX 6-8.3200000 BASEB5 COMBOEVELOP MIN 0-38.1700000 BASEB5 COMBOEVELOP MIN 0.5-38.1700000 BASEB5 COMBOEVELOP MIN 1-38.1700000 BASEB5 COMBOEVELOP MIN 1.5-38.1700000 BASEB5 COMBOEVELOP MIN 2-38.1700000 BASEB5 COMBOEVELOP MIN 2.5-38.1700000 BASEB5 COMBOEVELOP MIN 3-38.1700000 BASEB5 COMBOEVELOP MIN 3.5-38.1700000 BASEB5 COMBOEVELOP MIN 4-38.1700000 BASEB5 COMBOEVELOP MIN 4.5-38.1700000 BASEB5 COMBOEVELOP MIN 5-38.1700000 BASEB5 COMBOEVELOP MIN 5.5-38.1700000 BASEB5 COMBOEVELOP MIN 6-38.1700000 BASEB6 COMBOEVELOP MAX 0-772.4200000 BASEB6 COMBOEVELOP MAX 0.5-772.4200000 BASEB6 COMBOEVELOP MAX 1-772.4200000 BASEB6 COMBOEVELOP MAX 1.5-772.4200000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 62 BASEB6 COMBOEVELOP MAX 2-772.4200000 BASEB6 COMBOEVELOP MAX 2.5-772.4200000 BASEB6 COMBOEVELOP MAX 3-772.4200000 BASEB6 COMBOEVELOP MAX 3.5-772.4200000 BASEB6 COMBOEVELOP MAX 4-772.4200000 BASEB6 COMBOEVELOP MAX 4.5-772.4200000 BASEB6 COMBOEVELOP MAX 5-772.4200000 BASEB6 COMBOEVELOP MAX 5.5-772.4200000 BASEB6 COMBOEVELOP MAX 6-772.4200000 BASEB6 COMBOEVELOP MIN 0-1012.300000 BASEB6 COMBOEVELOP MIN 0.5-1012.300000 BASEB6 COMBOEVELOP MIN 1-1012.300000 BASEB6 COMBOEVELOP MIN 1.5-1012.300000 BASEB6 COMBOEVELOP MIN 2-1012.300000 BASEB6 COMBOEVELOP MIN 2.5-1012.300000 BASEB6 COMBOEVELOP MIN 3-1012.300000 BASEB6 COMBOEVELOP MIN 3.5-1012.300000 BASEB6 COMBOEVELOP MIN 4-1012.300000 BASEB6 COMBOEVELOP MIN 4.5-1012.300000 BASEB6 COMBOEVELOP MIN 5-1012.300000 BASEB6 COMBOEVELOP MIN 5.5-1012.300000 BASEB6 COMBOEVELOP MIN 6-1012.300000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 63 StoryBraceLoadLocPV2V3TM2M3 STORY1D1 COMBOEVELOP MAX 0-909.2200000 STORY1D1 COMBOEVELOP MAX 1.953-909.2200000 STORY1D1 COMBOEVELOP MAX 3.905-909.2200000 STORY1D1 COMBOEVELOP MIN 0 -1209.64 00000 STORY1D1 COMBOEVELOP MIN 1.953 -1209.64 00000 STORY1D1 COMBOEVELOP MIN 3.905 -1209.64 00000 STORY1D2 COMBOEVELOP MAX 01381.0900000 STORY1D2 COMBOEVELOP MAX 1.5071381.0900000 STORY1D2 COMBOEVELOP MAX 3.0151381.0900000 STORY1D2 COMBOEVELOP MIN 01040.9700000 STORY1D2 COMBOEVELOP MIN 1.5071040.9700000 STORY1D2 COMBOEVELOP MIN 3.0151040.9700000 STORY1D3 COMBOEVELOP MAX 0790.5700000 STORY1D3 COMBOEVELOP MAX 1.953790.5700000 STORY1D3 COMBOEVELOP MAX 3.905790.5700000 STORY1D3 COMBOEVELOP MIN 0597.6400000 STORY1D3 COMBOEVELOP MIN 1.953597.6400000 STORY1D3 COMBOEVELOP MIN 3.905597.6400000 STORY1D4 COMBOEVELOP MAX 0-121.400000 STORY1D4 COMBOEVELOP MAX 1.507-121.400000 STORY1D4 COMBOEVELOP MAX 3.015-121.400000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 64 STORY1D4 COMBOEVELOP MIN 0-163.1800000 STORY1D4 COMBOEVELOP MIN 1.507-163.1800000 STORY1D4 COMBOEVELOP MIN 3.015-163.1800000 STORY1D5 COMBOEVELOP MAX 0-415.9400000 STORY1D5 COMBOEVELOP MAX 2.157-415.9400000 STORY1D5 COMBOEVELOP MAX 4.314-415.9400000 STORY1D5 COMBOEVELOP MIN 0-544.7900000 STORY1D5 COMBOEVELOP MIN 2.157-544.7900000 STORY1D5 COMBOEVELOP MIN 4.314-544.7900000 STORY1D6 COMBOEVELOP MAX 0-120.3800000 STORY1D6 COMBOEVELOP MAX 1.507-120.3800000 STORY1D6 COMBOEVELOP MAX 3.015-120.3800000 STORY1D6 COMBOEVELOP MIN 0-163.1800000 STORY1D6 COMBOEVELOP MIN 1.507-163.1800000 STORY1D6 COMBOEVELOP MIN 3.015-163.1800000 STORY1D7 COMBOEVELOP MAX 0303.2100000 STORY1D7 COMBOEVELOP MAX 2.157303.2100000 STORY1D7 COMBOEVELOP MAX 4.314303.2100000 STORY1D7 COMBOEVELOP MIN 0232.5500000 STORY1D7 COMBOEVELOP MIN 2.157232.5500000 STORY1D7 COMBOEVELOP MIN 4.314232.5500000 STORY1D8 COMBOEVELOP MAX 0-575.2300000 STORY1D8COMBOEVELOP1.507-575.2300000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 65 MAX STORY1D8 COMBOEVELOP MAX 3.015-575.2300000 STORY1D8 COMBOEVELOP MIN 0-755.8400000 STORY1D8 COMBOEVELOP MIN 1.507-755.8400000 STORY1D8 COMBOEVELOP MIN 3.015-755.8400000 STORY1D9 COMBOEVELOP MAX 0-92.7100000 STORY1D9 COMBOEVELOP MAX 2.382-92.7100000 STORY1D9 COMBOEVELOP MAX 4.763-92.7100000 STORY1D9 COMBOEVELOP MIN 0-130.8400000 STORY1D9 COMBOEVELOP MIN 2.382-130.8400000 STORY1D9 COMBOEVELOP MIN 4.763-130.8400000 STORY1D10 COMBOEVELOP MAX 0-574.2200000 STORY1D10 COMBOEVELOP MAX 1.507-574.2200000 STORY1D10 COMBOEVELOP MAX 3.015-574.2200000 STORY1D10 COMBOEVELOP MIN 0-755.8400000 STORY1D10 COMBOEVELOP MIN 1.507-755.8400000 STORY1D10 COMBOEVELOP MIN 3.015-755.8400000 STORY1D11 COMBOEVELOP MAX 0-11.1300000 STORY1D11 COMBOEVELOP MAX 2.382-11.1300000 STORY1D11 COMBOEVELOP MAX 4.763-11.1300000 STORY1D11 COMBOEVELOP MIN 0-39.9800000 STORY1D11 COMBOEVELOP MIN 2.382-39.9800000 STORY1D11 COMBOEVELOP MIN 4.763-39.9800000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 66 STORY1D12 COMBOEVELOP MAX 0-628.2700000 STORY1D12 COMBOEVELOP MAX 1.507-628.2700000 STORY1D12 COMBOEVELOP MAX 3.015-628.2700000 STORY1D12 COMBOEVELOP MIN 0-820.1900000 STORY1D12 COMBOEVELOP MIN 1.507-820.1900000 STORY1D12 COMBOEVELOP MIN 3.015-820.1900000 STORY1D13 COMBOEVELOP MAX 0-7.7400000 STORY1D13 COMBOEVELOP MAX 2.382-7.7400000 STORY1D13 COMBOEVELOP MAX 4.763-7.7400000 STORY1D13 COMBOEVELOP MIN 0-38.3500000 STORY1D13 COMBOEVELOP MIN 2.382-38.3500000 STORY1D13 COMBOEVELOP MIN 4.763-38.3500000 STORY1D14 COMBOEVELOP MAX 0-628.8800000 STORY1D14 COMBOEVELOP MAX 1.507-628.8800000 STORY1D14 COMBOEVELOP MAX 3.015-628.8800000 STORY1D14 COMBOEVELOP MIN 0-820.1900000 STORY1D14 COMBOEVELOP MIN 1.507-820.1900000 STORY1D14 COMBOEVELOP MIN 3.015-820.1900000 STORY1D15 COMBOEVELOP MAX 0-94.8500000 STORY1D15 COMBOEVELOP MAX 2.382-94.8500000 STORY1D15 COMBOEVELOP MAX 4.763-94.8500000 STORY1D15 COMBOEVELOP MIN 0-130.8400000 STORY1D15COMBOEVELOP2.382-130.8400000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 67 MIN STORY1D15 COMBOEVELOP MIN 4.763-130.8400000 STORY1D16 COMBOEVELOP MAX 0-565.5900000 STORY1D16 COMBOEVELOP MAX 1.507-565.5900000 STORY1D16 COMBOEVELOP MAX 3.015-565.5900000 STORY1D16 COMBOEVELOP MIN 0-755.8400000 STORY1D16 COMBOEVELOP MIN 1.507-755.8400000 STORY1D16 COMBOEVELOP MIN 3.015-755.8400000 STORY1D17 COMBOEVELOP MAX 0303.2100000 STORY1D17 COMBOEVELOP MAX 2.157303.2100000 STORY1D17 COMBOEVELOP MAX 4.314303.2100000 STORY1D17 COMBOEVELOP MIN 0234.3200000 STORY1D17 COMBOEVELOP MIN 2.157234.3200000 STORY1D17 COMBOEVELOP MIN 4.314234.3200000 STORY1D18 COMBOEVELOP MAX 0-566.8300000 STORY1D18 COMBOEVELOP MAX 1.507-566.8300000 STORY1D18 COMBOEVELOP MAX 3.015-566.8300000 STORY1D18 COMBOEVELOP MIN 0-755.8400000 STORY1D18 COMBOEVELOP MIN 1.507-755.8400000 STORY1D18 COMBOEVELOP MIN 3.015-755.8400000 STORY1D19 COMBOEVELOP MAX 0-410.1600000 STORY1D19 COMBOEVELOP MAX 2.157-410.1600000 STORY1D19 COMBOEVELOP MAX 4.314-410.1600000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 68 STORY1D19 COMBOEVELOP MIN 0-544.7900000 STORY1D19 COMBOEVELOP MIN 2.157-544.7900000 STORY1D19 COMBOEVELOP MIN 4.314-544.7900000 STORY1D20 COMBOEVELOP MAX 0-117.6500000 STORY1D20 COMBOEVELOP MAX 1.507-117.6500000 STORY1D20 COMBOEVELOP MAX 3.015-117.6500000 STORY1D20 COMBOEVELOP MIN 0-163.1800000 STORY1D20 COMBOEVELOP MIN 1.507-163.1800000 STORY1D20 COMBOEVELOP MIN 3.015-163.1800000 STORY1D21 COMBOEVELOP MAX 0790.5700000 STORY1D21 COMBOEVELOP MAX 1.953790.5700000 STORY1D21 COMBOEVELOP MAX 3.905790.5700000 STORY1D21 COMBOEVELOP MIN 0587.7600000 STORY1D21 COMBOEVELOP MIN 1.953587.7600000 STORY1D21 COMBOEVELOP MIN 3.905587.7600000 STORY1D22 COMBOEVELOP MAX 0-118.900000 STORY1D22 COMBOEVELOP MAX 1.507-118.900000 STORY1D22 COMBOEVELOP MAX 3.015-118.900000 STORY1D22 COMBOEVELOP MIN 0-163.1800000 STORY1D22 COMBOEVELOP MIN 1.507-163.1800000 STORY1D22 COMBOEVELOP MIN 3.015-163.1800000 STORY1D23 COMBOEVELOP MAX 0-892.7900000 STORY1D23COMBOEVELOP1.953-892.7900000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 69 MAX STORY1D23 COMBOEVELOP MAX 3.905-892.7900000 STORY1D23 COMBOEVELOP MIN 0 -1209.64 00000 STORY1D23 COMBOEVELOP MIN 1.953 -1209.64 00000 STORY1D23 COMBOEVELOP MIN 3.905 -1209.64 00000 STORY1D24 COMBOEVELOP MAX 01381.0900000 STORY1D24 COMBOEVELOP MAX 1.5071381.0900000 STORY1D24 COMBOEVELOP MAX 3.0151381.0900000 STORY1D24 COMBOEVELOP MIN 01022.9300000 STORY1D24 COMBOEVELOP MIN 1.5071022.9300000 STORY1D24 COMBOEVELOP MIN 3.0151022.9300000 StoryColumnLoadLocPV2V3TM2M3 STORY1C1-1 COMBOEVELOP MAX 0-83.7100000 STORY1C1-1 COMBOEVELOP MAX 1.4-83.7100000 STORY1C1-1 COMBOEVELOP MAX 2.8-83.7100000 STORY1C1-1 COMBOEVELOP MIN 0-114.6200000 STORY1C1-1 COMBOEVELOP MIN 1.4-114.6200000 STORY1C1-1 COMBOEVELOP MIN 2.8-114.6200000 STORY1C2-1 COMBOEVELOP MAX 0-85.3500000 STORY1C2-1 COMBOEVELOP MAX 1.7-85.3500000 STORY1C2-1 COMBOEVELOP MAX 3.4-85.3500000 STORY1C2-1 COMBOEVELOP MIN 0-116.2600000 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 70 STORY1C2-1 COMBOEVELOP MIN 1.7-116.2600000 STORY1C2-1 COMBOEVELOP MIN 3.4-116.2600000 STORY1C3 COMBOEVELOP MAX 045.3300000 STORY1C3 COMBOEVELOP MAX 245.3300000 STORY1C3 COMBOEVELOP MAX 445.3300000 STORY1C3 COMBOEVELOP MIN 034.2700000 STORY1C3 COMBOEVELOP MIN 234.2700000 STORY1C3 COMBOEVELOP MIN 434.2700000 STORY1C4-1 COMBOEVELOP MAX 0-83.1800000 STORY1C4-1 COMBOEVELOP MAX 1.7-83.1800000 STORY1C4-1 COMBOEVELOP MAX 3.4-83.1800000 STORY1C4-1 COMBOEVELOP MIN 0-116.2600000 STORY1C4-1 COMBOEVELOP MIN 1.7-116.2600000 STORY1C4-1 COMBOEVELOP MIN 3.4-116.2600000 STORY1C5-1 COMBOEVELOP MAX 0-81.5400000 STORY1C5-1 COMBOEVELOP MAX 1.4-81.5400000 STORY1C5-1 COMBOEVELOP MAX 2.8-81.5400000 STORY1C5-1 COMBOEVELOP MIN 0-114.6200000 STORY1C5-1 COMBOEVELOP MIN 1.4-114.6200000 STORY1C5-1 COMBOEVELOP MIN 2.8-114.6200000 II.XC NH TIT DIN THANH DN: Tnh ton cho mt na dn: N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 71 CHN TIT DIN FrameLP max[ ]lxlyA ctrxycryycChon TextmkN gtmmcm2cmcmthep B16.000-1012.31200.4796.0006.00091.895.0005.0002L200x12 B26.000-35.661200.4796.0006.0003.245.0005.0002L100X12 B36.000267.1540016.0006.00011.621.5001.5002L100X12 D13.905-1209.61500.4791.9533.905109.801.3022.6032L200x16 D23.0151381.0940011.5081.50860.050.3770.3772L140x12 D33.905790.5740011.9533.90534.370.4880.9762L100X12 D43.015-163.181200.4791.5081.50814.811.2561.2562L140x12 D54.305-544.791500.4792.1534.30549.451.4352.8702L140x12 D63.015-163.181200.4791.5081.50814.811.2561.2562L140x12 D74.305303.2140012.1534.30513.180.5381.0762L80x7 D83.015-755.841200.4791.5081.50868.611.2561.2562L160x12 D94.760-130.841500.4794.7604.76011.883.1733.1732L100X12 D103.015-755.841200.4793.0153.01568.612.5132.5132L160x12 D114.760-39.981500.4794.7604.7603.633.1733.1732L80x7 D123.015-820.191200.4793.0153.01574.452.5132.5132L160x12 C12.800-114.621200.4792.2402.80010.401.8672.3332L80x7 C23.392-116.261200.4792.7143.39210.552.2612.8272L80x7 C34.00045.3340013.2004.0001.970.8001.0002L50x5 B1B2B3D4D6D8D10D12D7D5C1D11 D9 D1 D3C2C3D2KIM TRA TIT DIN N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 72 III.TNH TON V CU TO MT DN : Frame Chon A thrxryxyo Text thep cm2cmcm daN/cm2 B1 2L200x12 94.206.228.699669.040.6221727 B2 2L100X12 45.603.034.71198127.390.195402 B3 2L100X12 45.603.034.71--1.000586 D1 2L200x12 94.26.228.693144.940.8881447 D2 2L140x12 65.004.316.30--1.0002125 D3 2L100X12 45.603.034.71--1.0001734 D4 2L140x12 65.004.316.303523.930.923272 D5 2L140x12 65.004.316.305068.330.7901062 D6 2L140x12 65.004.316.303523.930.923272 D7 2L80x7 21.602.453.82--1.0001404 D8 2L160x12 74.804.947.093121.260.9371078 D9 2L100X12 45.603.034.71157101.060.301953 D10 2L160x12 74.804.947.096142.520.8221229 D11 2L80x7 21.602.453.82194124.610.202917 D12 2L160x12 74.804.947.096142.520.8221333 C1 2L80x7 21.602.453.829173.300.656809 C2 2L80x7 21.602.453.8211188.800.5331011 C3 2L50x5 9.601.532.61--1.000472 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 73 1.Nt lin kt dn vi ct : Nut di(Mt 1) a.Tnh lin kt thanh cnh di vo bn m: Thanh B1 vi ni lc N = - 1012.3 (kN) Ly chiu cao ng hn sng hs = 8 mm; ng hn mp hm = 6 mm Chiu di ng hn sng tnh theo : min. 0.7 1012301 1 36.1( )2. .( . ) 2 0.8 0.7 1800ss h gk Nl cmh R |= + = + = => Chn :ls = 37 (cm) Chiu di ng hn mp tnh theo : min(1 ). (1 0.7).1012301 1 21.12. .( . ) 2 0.6 0.7 1800mm h gk Nl cmh R | = + = + = => Chn :lm = 22 (cm). Trong : K: h s phn phi ni lc, K = 0.7:thp u cnhN : ni lc trong thanh. b.Thanh xin D1 vi ni lc N = -1209.6(kN) Ly chiu cao ng hn sng hs = 8 mm; ng hn mp hm = 8 mm min. 0.7 1209601 1 43( )2. .( . ) 2 0.8 0.7 1800ss h gk Nl cmh R |= + = + = => Chn :ls = 44(cm) Chiu di ng hn mp tnh theo : min(1 ). (1 0.7) 1209601 1 25( )2. .( . ) 2 0.6 0.7 1800mm h gk Nl cmh R | = + = + = => Chn : lm = 25(cm c.Chn b dy sn gi d : D1 D3C2C3D2B1B2B3D4D6D8D10D12D7D5C1D11 D9123456798 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 74 Do ti mt di u dn ch tn ti phn lc ngang gy nn cho thang cnh di nn ta tnh b dy sn gi theo iu kn chu p mt . Cc thnh phn phn lc ti nt u dn : RA= ( ). (31.86 5.88) 36679.32( )2 2q p LkN+ + = =H =774.31352( )2.2ddddMkNh= =Theo iu kin chu p mt , ta c b dy sn gi nh sau : ..Aem s semRF bRo= >Vi Rem=2800 daN/cm2 267932. 24.3( ). 1 2800Aem s semRF b cmRo= > = = => Chn : bs = 18cm, 2scm o = , L = 90cm d.Tnh ng hn lin kt bn m vo sn gi : Ta c : H = 352(kN) e= L/2-22-Z0=68/2 15 - 5.37 =13.63 cm. (Vi Zo= 5.37mm - tra bng IV.2 trang 122 ct 15) lh= L 2 = 90 2 = 88cm. Chiu cao ng hn : 2 2 2min1 6..(1 )2. . ( . )h ah g heh H Rl R l |> + +2 2 21 6 13.63(35200) (1 ) (67932) 0.3( )2 1 88 1260 88hh cm> + + = => Chn : hh = 1cm e.Tnh bulng lin kt sn gi vo bn cnh ct : Do khng tn ti thnh phn phn lc ngang gy ko thanh cnh di nn bulong lin kt sn gi vo bn cnh ct c ly theo cu to :chn 8 bulong 20 Bulong chn theo cu to c b tr 2 hng ng khong cch tbulong trn cng n mp trn sn gi khng nh hn 2d , khong cch cc bulong trn mi hng khng ln hn 8d . f.Tnh ton gi : B rng gi g sb b >; b dy gi ly ln hn b dy sn gi sao cho sn gi t lt vo trong mt gi .Mp ngoi sn gi cch mp ngoi gi ti thiu l 5 n 10 mm. Chiu di gi ph thuc vo chiu dy ng hn lin kt gi vo ct. N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 75 2L200x122001215015050 20150680x20150440x8250x61212122002002L200x125001502020012 12220x6150150700520700460CHI TIET 1 TL:1/10250x10250400280x10280x10250201501002030280x103001501001015020370x81201804BL20Gi chu phn lc RA= 679.32 (kN) . Gi lin kt vo ct bng 2 ng hn gc . Chn chiu dy gi 30 .gmm o = b rng gi bg=250 mm. Chn chiu cao ng hn gc lin kt gi vo cnh ct hh = 1 cm .Chiu di ng hn gc tnh theo : min679321 1 27.9( )2. .( . ) 2 1 1260Ahh h gRl cmh R |= + = + =

=>Chn lh = 28 (cm). Nut tren (MT 2) a.Tnh lin kt thanh dn phn nh v thanh cnh trn vo bn m : -Thanh cnh trn : Ta c phn lc thanh cnh trn gy ko H = 1381.09 (kN) Chn chiu cao ng hn gc hhs = 12mm, hng mp hhm = 8mm min. 0.7 1381091 1 33( )2. .( . .) 2 1.2 1260hsh h gk Hl cmh R |= + = + = N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 76 => Chn : lhs = 330mm min(1 ). 0.3 1381091 1 21.6( )2. .( . .) 2 0.8 1260hsh h gk Hl cmh R | = + = + = => Chn : lhm = 220mm - Mat tren co ban mat va ban goi, chu cac lc : lc ngang H = 107.3 kN lam tach ban mat ra khoi cot va chu phan lc ng cua dan phan nho e xuong.- Ban mat lien ket vi ban goi bang 2 ng han ng chu cac lc ngangH= 352 kN, momen do lech tam cua H vi trong tam ng han la e = 75 (mm). Chon chieu dai ban mat la 40 (cm) bang chiei dai ng han,chn hh=12 (mm). Kiem tra kha nang chu lc cua ng han theo cong thc : 2 22)2( )262(h h h h h h l h hhl hRl hMl hH| | |o + + =2 2235200 6 7.5 35200 67932( ) ( )2 0.7 1.2 (40 1) 2 0.7 1.2 (40 1) 2 0.7 1.2 (40 1) = + + = 1554 (daN/cm2) < Rgh = 1800 (daN/cm2 - Ban goi c lien ket vi ban mat bang 6 bulong bo tr nh hnh ve. Tam cua vung bulong trung vi tam cua ban goi. bulong chu keo do H = 352 kN va momenM = 3527.5 = 2640 kN.cm Do momen, mat se b xoay quanh 1 iem co nh , gia thiet la trung vi truc bulong hang bien di. Lc keo ln nhat tac dung len hang bulong tren cung la : max2 2 235200 264000 2463072 6 2 (12 24 )bliMy HN daNn y= + = + = +

Dien tch tiet dien can thiet cua mot Bulong: 263072.522500blct blkNA cmR= = = N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 77 Tra bang 2.10 T59 Ket Cau thep 1, oan nh Kien chon bulong| 20 coAth =2.54(cm2) - Tnh chieu day ban goi : b dy sn gi c xc nh theo iu kin : 10.5 3 / ( )sb H lR o >Trong : b1=120 (mm) : l khong cch gia hai hng bulong ng l = 400 (mm) : chiu di sn gi. R = 2300 daN/cm2 : cng tinh ton ca vt liu thp lm sn gi. 352000.5 3 12 1.940 2300so => > =(cm) => chn s = 2 (cm) -Thanh dn phn nh vo bn m : V ni lc thanh dn phn nh rt b nn c th hn theo cu to : 12585ssmml cmh mml cmh mm= === 2.NUT TRUNG GIAN NOI THANH BUNG VAO THANH CANH : Nut 3 : -Chieu dai ng han song va mep lien ket thanhxien au dan D1 vao ban ma la : hhs = 8mm, hhm = 6mm,ND1 = -1209.6 (kN) lhs =( )1min2Dhs gkNh R |+1=0.7 1209602 0.8 1260 +1 = 43 cm 20 460 201401210104003BL20CHI TI?T 2TL 1-1020400x12601201201001402L140x12121894005012502L50x5741769018060226330x8220x6120x580x51201201002801207050 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 78 => Chon :lhs =50cm lhm =( )( )1min12Dhm gk Nh R |+1=0.3 1209602 0.6 1260 +1 = 25cm => Chon :lhm=25cm -Chieu dai ng han song va mep lien ket thanh xien D3 vao ban ma la: (chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). ND3 = 790.57 (kN) lhs =( )3min2Dhs gkNh R |+1=0.7 790572 1 0.8 1260 +1 = 28.5cm => Chon :lhs = 30 cm lhm =( )( )3min12Dhm gk Nh R |+1=0.3 790572 1 0.6 1260 +1 =16.7cm => Chon : lhm = 20 cm -Chieudainghansongvameplienketthanhcanhtrenvao ban ma la: (chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). Lc tnh toan noi song va mep thep canh ( ) ( )3 1N==0.7 79057 120960 29332(daN)s D Dk N N + =

( )( ) ( )3 1Nm = 1=0.3 79057 120960 12571(daN)D Dk N N + + = =>lhs =( )min2g hssR hN| +1=293322 1 0.8 1260 +1 = 15.5 cm,=>Chon :lhs = 50cm =>lhm =( )min2g hmmR hN| +1=125712 1 0.6 1260 +1 = 8.3cm => Chon :lhm = 50cm N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 79 Nut 4 : -Chieu dai ng han song va mep lien ket thanh xien D3 vao ban ma la: (chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). lhs =( )3min2Dhs gkNh R |+1=0.7 790572 1 0.8 1260 +1=28.5cm,chon lhs =30 cm lhm =( )( )3min12Dhm gk Nh R |+1=0.3 790572 1 0.6 1260 +1 =16.7cm, chon lhm=20 cm -Chieu dai ng han song va mep lien ket thanh ng C1 vao ban ma la: (chon chieu cao ng han song va mep la hhs = 6mm, hhm = 6mm). lhs =( )1min2Chs gkNh R |+1=0.7 114622 0.6 1260 +1= 6.3cm, chon lhs = 10cm lhm =( )( )1min12Chm gk Nh R |+1=0.3 114622 0.6 1260 +1 = 3.3 cm, chon lhm= 10cm -Chieu dai ng han song va mep lien ket thanh xien D5 vao ban ma la: (chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). CHI TI?T 3TL 1-105411901401402L140x12122002002L200x1212100121002L100x12500x8500x6500x8500x6300x8250x65503929 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 80 lhs =( )5min2Dhs gkNh R |+1=0.7 544792 0.8 1260 +1= 19.9 cm,chon lhs = 20cm lhm =( )( )5min12Dhm gk Nh R |+1=0.3 544792 0.6 1260 +1 =11.8 cm, chonlhm = 15cm -Chieu dai ng han song va mep lien ket thanh canh di B1 vao ban ma la: (chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). lhs =( )1min2Bhs gkNh R |+1=0.7 1012302 0.8 1260 +1 = 36.1 cm,chon lhs = 40cm lhm =( )( )1min12Bhm gk Nh R |+1=0.3 1012302 0.6 1260 +1 =21.1cm,chon lhm =25 cm -Chieu dai ng han song va mep lien ket thanh canh di B2 vao ban ma la: (chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). lhs =( )2min2Bhs gkNh R |+1=0.7 35662 0.8 1260 +1 = 2.2 cm, chon lhs = 20cm lhm =( )( )2min12Bhm gk Nh R |+1=0.3 35662 0.6 1260 +1 =1.7 cm, chon lhm=10cm CHI TIT 4 Nut 5 : 50458 405392954222912400x8250x6200x8100x6300x8200x6200x8150x6100x6100x8200122002L200x12100 1002L100x12121001002L100x12128012802L80x7140121402L140x12119050420190 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 81 -Chieu dai ng han song va mep lien ket thanh xien D5 vao ban ma la(chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). lhs =( )5min2Dhs gkNh R |+1=0.7 544792 0.8 1260 +1= 19.9 cm,chonlhs= 20cm lhm =( )( )5min12Dhm gk Nh R |+1=0.3 544792 0.6 1260 +1 =11.8 cm, chon lhm=15cm -Chieu dai ng han song va mep lien ket thanh xien D7 vao ban ma la(chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). lhs =( )7min2Dhs gkNh R |+1=0.7 303212 0.8 1260 +1 = 11.5 cm,chon lhs= 20cm lhm =( )( )7min12Dhm gk Nh R |+1=0.3 303212 0.6 1260 +1 = 7 cm, chon lhm =10cm -Chieu dai ng han song va mep lien ket thanh canh tren vao ban ma la (chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). Lc tnh toan noi song va mep thep canh. Ns =( ) ( ) ( ) ( ) ( )2 28 6 2 2 2 20.5 sin 0.5 cosD Dk N N G P G P o o + + + ( ) ( ) ( ) ( ) ( )2 2 = 0.7 75584 16318 0.5 8496 1764 sin5.71 0.5 8496 1764 cos5.71 42306(daN) + + + + = Nm =( ) ( ) ( ) ( ) ( )2 28 6 2 2 2 2(1 ) 0.5 sin 0.5 cosD Dk N N G P G P o o + + + ( ) ( ) ( ) ( ) ( )2 2 = 0.3 75584 16318 0.5 8496 1764 sin5.71 0.5 8496 1764 cos5.71 18989(daN) + + + + = =>lhs =( )min2g hssR hN| +1=423062 0.8 1260 +1= 23 cm, chon lhs =30cm =>lhm =( )min2g hmmR hN| +1=189892 0.6 1260 +1 = 13.6 cm, chon lhm=20cm N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 82 Nut 6 : -Chieu dai ng han song va mep lien ket thanh xien D7 vao ban ma la(chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). lhs =( )7min2Dhs gkNh R |+1=0.7 303212 0.8 1260 +1= 11.5 cm,chonlhs= 20cm lhm =( )( )7min12Dhm gk Nh R |+1=0.3 303212 0.6 1260 +1 = 7 cm, chon lhm =10cm -Chieu dai ng han song va mep lien ket thanh ng C2 vao ban ma la(chon chieu cao ng han song va mep la hhs = 6mm, hhm = 6mm). lhs =( )2min2Chs gkNh R |+1=0.7 116262 0.6 1260 +1 = 6.4 cm,chon lhs= 10cm lhm =( )( )2min12Chm gk Nh R |+1=0.3 116262 0.6 1260 +1 = 3.3 cm, chonlhm = 10cm -Chieu dai ng han song va mep lien ket thanh xien D9 vao ban ma la(chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). lhs =( )9min2Dhs gkNh R |+1=0.7 130842 0.8 1260 +1= 5.5 cm,chonlhs= 10cm CHI TI?T 5TL 1-10503305014050150901402L140x12123923546032078060016050190121402L140X1239300x8200x6200x8150x6200x8 100x880802L80x71222140 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 83 lhm =( )( )9min12Dhm gk Nh R |+1=0.3 130842 0.6 1260 +1 = 3.6 cm, chonlhm = 5 cm -Chieu dai ng han song va mep lien ket thanh canh di vao ban ma la (chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). Lc tnh toan noi song va mep thep canh. Ns = ( ) ( ) ( )2 22 3 20.5 cosB B Ck N N N o + + = ( ) ( ) ( )2 20.7 3566 26715 0.5 11626 cos 0 + + = 21979 (daN) Nm = ( )( ) ( ) ( )2 22 3 21 0.5 cosB B Ck N N N o + +=( ) ( ) ( )2 20.3 3566 26715 0.5 11626 cos0 + + =10785 (daN) =>lhs =( )min2g hssR hN| +1=219792 0.8 1260 +1= 11.9 cm,chon lhs = 30cm =>lhm =( )min2g hmmR hN| +1=108752 0.6 1260 +1 = 8.2 cm, chon lhm = 20cm 27016022CHI TI?T 6TL 1-101001002L100x1212292980802L80x712320 340660310 2705014050110260150300x8200x6200x8100x6100x850x6 100x6100x8100 1002L100x121280802L80x712 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 84 Nut 7 : -Chieu dai ng han song va mep lien ket thanh xien D9 vao ban ma la(chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). lhs =( )9min2Dhs gkNh R |+1=0.7 130842 0.8 1260 +1=5.5 cm, chonlhs = 10cm lhm =( )( )9min12Dhm gk Nh R |+1=0.3 130842 0.6 1260 +1 = 3.6 cm,chon lhm = 5cm -Chieu dai ng han song va mep lien ket thanh xien D11 vao ban ma la(chon chieu cao ng han song va mep la hhs = 6mm, hhm = 6mm). lhs =( )11min2Dhs gkNh R |+1=0.7 39982 1 0.8 1260 +1= 2.4 cm,chonlhs = 10cm lhm =( )( )11min12Dhm gk Nh R |+1=0.3 39982 1 0.6 1260 +1 = 1.8 cm, chon lhm= 5cm -Chieu dai ng han song va mep lien ket thanh canh tren vao ban ma la (chon chieu cao ng han song va mep la hhs = 8mm, hhm = 6mm). Lc tnh toan noi song va mep thep canh. Ns =( ) ( ) ( ) ( ) ( )2 212 10 4 2 4 20.5 sin 0.5 cosD Dk N N G P G P o o + + + ( ) ( ) ( ) ( ) ( )2 2 = 0.7 82019 75584 0.5 8793 1764 sin5.71 0.5 8793 1764 cos5.71 7272(daN) + + + + = Nm =( ) ( ) ( ) ( ) ( )2 212 10 4 2 4 2(1 ) 0.5 sin 0.5 cosD Dk N N G P G P o o + + + ( ) ( ) ( ) ( ) ( )2 2 = 0.3 82019 75584 0.5 8793 1764 sin5.71 0.5 8793 1764 cos5.71 5798(daN) + + + + = =>lhs =( )min2g hssR hN| +1=72722 1 0.8 1260 +1= 4.6 cm,chon lhs = 10 cm =>lhm =( )min2g hmmR hN| +1=57982 1 0.6 1260 +1 = 4.8 cm, chon lhm = 10 cm N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 85 3.NUT NOI DAN NGOAI HIEN TRNG : Nut di (nut 8): a.Tnh toan noi canh: Lc tnh toan noi canh Nq =1.2NB3 =1.2 x 267.15 = 320.6 (kN) Chon ban ghep co tiet dien 25x1.2 => vay dien tch quy c cua moi noi la. Aq = 2Agh+Abm = 25x1.2 + 2x1.2x10 = 54(cm2) ng suat quy c tren tiet dien noi quy c la q = qqAN = 3206054 = 594 (daN/cm2) < R = 2300( daN/cm2) Lc truyen qua ban ghep: Ngh = qx Agh =594x25x1.2 = 17820 (daN) Tong chieu dai ng han lien ket ban ghep vi thep goc canh di la (chon chieu cao ng han hh = 6mm) Elh = ( )4min+g hghR hN| = 178201 0.6 1260 +4 = 27.6(cm) Chn Elh = 2(20 + 10)= 60 (cm) > 27.5 (cm) 50120110480CHI TI?T 7TL 1-10140140122L140X123980802L80x71222100x850x61001002L100x12122931013023090360240600200x8100x6100x850x6 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 86 Lc truyen qua ban ma. Nbm = Nq - Ngh=32060 17820 = 14240 (daN) Nbm 0.5Nq = 0.5x32060 = 16030 (daN) => Nbm = 16030 (daN) Tong chieu dai ng han lien ket thep goc canh di vao ban ma la (chon chieu cao ng han hh = 6mm). Elh = ( )4min+g hbmR hN| = 160301 0.6 1260 +4 = 25 (cm) Chn Elh = 2(20 + 10)= 60 (cm) > 25 (cm) b.Tnh noi ban ma: Lc truyen qua hai ban noi. Nbn = Nbmcoso1.2ND11cos = 16030 x cos0 -1.2 x 3998 x cos40 = 12355(daN) ng han lien ket ban noi vao ban ma la(chon hh = 6mm).lh = ( )12min+g hbnR hN| = 123552 1 0.6 1260 +1 = 9.2(cm) Chon ban noi co tiet dien 200 x 150 x10 Kiem tra cng o cua ban noi (ban noi co 2 lo bulong 20) = bnthbnAN2 =123552(20 1 2(2 1)) = 386 (daN/cm2) vay dien tch quy c cua moi noi la. 100 460 1003520200x150x12 200x80x12 660x260x12260660CHI TI?T 8TL 1-10r=20100x6200x6200x6200x6 200x65026050100300505012200x6200x650 50200x650x650x650x550x550x650x65050110 220 130 50 70 809029205020200 55 150 55 200100 1002L100x121280802L80x71280802L80x712 N KT CU THPGVHD : V TH BCH NG SVTH : NGUYN C THNH - 08114099Page 88 Aq = 2Agh+Abm = 33x1.2 + 2x1.2x14 = 73.2(cm2) ng suat quy c tren tiet dien noi quy c la q = qqAN = 9840073.2 = 1344(daN/cm2) < R=2300(daN/cm2) Lc truyen qua ban ghep: Ngh = qx Agh = 1344 x33x1.2 = 53222(daN) Tong chieu dai ng han lien ket ban ghep vi thep goc canh tren la (chon chieu cao ng han hh = 6mm) Elh = ( )4min+g hghR hN| = 532221 0.6 1260 +4 = 74.4 (cm) Chn Elh = 2(25 + 15)= 80 (cm) > 74.4 (cm) Lc truyen qua ban ma. Nbm =Nq-Ngh=9840053222 = 45178 (daN)Nbm 0.5Nq = 0.5x98400 = 49200 (daN) => Nbm = 49200 (daN) Tong chieu dai ng han lien ket thep goc canh tren vao ban ma la (chon chieu cao ng han hh =6mm). Elh = ( )4min+g hbmR hN| = 492001 0.6 1260 +4 = 69.1(cm) Chn Elh = 2(25 + 15)= 80 (cm) > 69.1 (cm) Lc truyen qua hai ban noi. Nbn = Nbmcoso = 49200 x cos5.71 = 48956(daN) ng han lien ket ban noi vao ban ma la(chon hh =6mm).lh = ( )12min+g hbnR hN| = 489562 1 0.8 1260 +1 = 25(cm) Chon ban noi co tiet dien 250 x 150 x10 Kiem tra cng o cua ban noi (ban noi co 2 lo bulong 20) = bnthbnAN2 =489562(20 1 2(2 1)) = 1530(daN/cm2)