EQCalcApproximate Column selfweight calculation :Earthquake load calculations as per IS1893-2002.- by Hemant Vadalkar.TYPICAL STOREY HEIGHT =2.900MTS.TYPICAL WIDTH OF COLUMN =230MMS.TOTAL NUMBERProject :Building xyz at Mumbai. Rev.Mar2003OF COLUMNS =62User :hsvDate :28-Jun-15DENSITY OF CONCRETE =2.500TONS/M3TABLE 2 of IS1893-2002(1)TOTAL SEISMIC WEIGHT OF BUILDING ( W ) =19250TONSCOL.TYPEIIIIIIIVVVIVIIVIIICOLUMNSTOREYSeismicZone FactorLOADLOADZoneZ?(2)Height of the building h (metre) =20COL. NO.5201076581(TONS)(TONS)10.120.1?(3)Base dimension of the building d (metre) =10FOOTING42550057565072580087595090.8930.1640.24?(4)Building Type 1: Bldg. with infill10.569GROUND37545052560067575082590059.4063550.362 : RCC frame Bldg. without infill0.7093 : Steel frame Bldg. without infill0.804FIRST37545052560060067575082556.90757Time Period T =0.569sec?(4a)Soil strata 1: Hard, 2: Medium, 3: Soft2(5)Time period T (T1 = 0.09 * h / sqrt(d)=0.569secondsSECOND30037545052552560067575049.15750Figure 2 T v/s Sa/gT2 = 0.075*h^0.75 ; T3 = 0.085*h^0.75 )Strata typeSa/g?(6)Zone factor Z as per Table 2 =0.16THIRD30030037545045052560060041.90742?(7)Importance Factor I as per Table 6 =11Hard Soil1.757?(8)Response Reduction Factor R as per Table 7 =5FOURTH23030030037537545052552536.697372Medium Soil2.389(9)From Fig 2 of IS:1893-2002 Sa/g =2.3893Soft Soil2.500(10)Design Horizontal Seismic coefficient AhFIFTH23023030030037537545045031.72732(11)Ah =Z*I*Sa/(2*R*g) =0.0382SIXTH0.00346(12)DESIGN BASE SHEAR ( Vb = Ah * W ) =736TONSSEVENTH0.00?(13)TYPICAL STOREY HEIGHT ( H ) =2.9METRESEIGHTH0.00(14)P_FACTOR = (Wi*hi^2) / (TOTAL(Wi*hi^2))NINTH0.00(15)Qi = P_FACTOR * VbTENTH0.00====TOTAL LOAD =366.65606254700FLOORWihiWi*hi^2P_FACTORQiNO. OFJOINTTOTALTOTALTOTAL(TONS)(MTS)(TONS)JOINTSFORCEFORCEBMBM(TONS)CUMMU.ATCUMMU.FLOOR==========ROOF100079.8263712320.1413104.01104.0086104.00.00000.02570076.9241416800.091967.6167.6118171.6301.6249812261301.62470074.0238352720.085162.6162.6098234.2497.6991814113799.32370071.1235406380.078557.8157.7999292.0679.26749611481478.62270068.2232577780.072353.2153.1823345.2846.88732652752325.52170065.3229866920.066348.8148.7569394.01001.11607384083326.62070062.4227273790.060544.5144.5237438.51142.51113924574469.11970059.5224798410.055040.5140.4827479.01271.62992393355740.71870056.6222440770.049836.6136.6339515.61389.02982909537129.81770053.7220200870.044833.0132.9774548.61495.26825592228625.01670050.8218078710.040129.5129.5130578.11590.902605605510215.91570047.9216074280.035726.2126.2408604.31676.490279336311892.41470045.0214187600.031523.2123.1609627.51752.588678305713645.01370042.1212418660.027520.3120.2731647.81819.75520370515464.81270039.2210767460.023917.6117.5776665.41878.547256725317343.31170036.329234000.020515.1115.0742680.41929.522238557719272.81070033.427818270.017312.8112.7631693.21973.237550393521246.1970030.526520290.014510.6110.6442703.82010.250593423723256.3870027.625340050.01188.718.7175712.62041.118768839725297.4770024.724277550.00957.016.9830719.52066.399477832427363.8670021.823332790.00745.415.4407725.02086.650121593229450.5570018.922505760.00564.114.0906729.12102.428101313131552.9470016.021796480.00402.912.9327732.02114.290818183333667.2370013.121204940.00272.011.9670734.02122.795673395135790.0270010.22731140.00161.211.1936735.22128.500068139437918.517007.32375080.00080.610.6123735.82131.961403607740050.5STILT5753.6677020.00020.110.1257735.92692.923350491942743.4Base1750.0000.00000.010.0000735.92693.38356145945436.8=============TOTAL19250450786871.0000735.945436.7799582246(W) MT(Vb) MTB.M. @ BASE ( TM)Approximate Seismic weight calculations :(I)TYPICAL FLOOR BEAM+COL SELF WT(DL) =175.00TONS(II)TYPICAL FLOOR SLAB (DEAD) LOADS =100.00TONS(III)TYPICAL FLOOR WALL (DEAD) LOADS =400.00TONS(IV)TYPICAL FLOOR SLAB (LIVE) LOADS =100.00TONS(V)ROOF FLOOR SLAB (DEAD) LOADS =170.80TONS(VI)ROOF FLOOR SLAB (LIVE) LOADS =0.00TONS(VII)GR. / PLINTH LEVEL D.L. (NO L.L.) =575.00TONS(VIII)TYPICAL FLOOR D.L. + (25%) L.L. =700.00TONS(IX)ROOF FLOOR D.L. + (25%) L.L. =345.80TONS

Time periodEarthquake load calculations as per IS1893-2002.Calculation of Time period T secT=0.075h^0.75T=0.085h^0.75Buildings with Brick infill panelsBldg. Without Brick infillBase dimension d (m)T= 0.09*h/d^0.5Height h(m)RC frameSteel frame10203040506070800000000000050.25077761440.28421462960.14230249470.1006230590.08215838360.07115124740.06363961030.05809475020.05378528740.0503115295100.42175599390.47799012640.28460498940.2012461180.16431676730.14230249470.12727922060.11618950040.10757057480.100623059150.57164934170.64786925390.42690748410.3018691770.24647515090.21345374210.19091883090.17428425060.16135586230.1509345885200.70930620680.80388036770.56920997880.40249223590.32863353450.28460498940.25455844120.23237900080.21514114970.201246118250.83852549160.95032889040.71151247350.50311529490.41079191810.35575623680.31819805150.2904737510.26892643710.2515576475300.96139576441.08958186630.85381496820.60373835390.49295030180.42690748410.38183766180.34856850120.32271172450.301869177351.07922574441.22312251030.9961174630.70436141290.57510868540.49805873150.44547727210.40666325140.37649701190.3521807065401.19290609321.35196023891.13841995770.80498447190.6572670690.56920997880.50911688250.46475800150.43028229940.4024922359451.30307870841.47682253621.28072245240.90560753090.73942545260.64036122620.57275649280.52285275170.48406758680.4528037654501.41022615991.59825631461.42302494711.00623058990.82158383630.71151247350.63639610310.58094750190.53785287420.5031152949551.51472321131.71668630621.56532744181.10685364890.90374221990.78266372090.70003571340.63904225210.59163816160.5534268244601.61686850381.8324509711.70762993651.20747670780.98590060350.85381496820.76367532370.69713700230.6454234490.6037383539651.71690506121.9458257361.84993243121.30809976681.06805898710.92496621560.8273149340.75523175250.69920873650.6540498834701.81503411942.05703866861.99223492591.40872282581.15021737080.9961174630.89095454430.81332650270.75299402390.7043614129751.91142477552.16628141222.13453742061.50934588481.23237575441.06726871030.95459415460.87142125290.80677931130.7546729424802.00622091492.27371703692.27683991531.60996894381.3145341381.13841995771.01823376490.92951600310.86056459870.8049844719852.09954630662.37948581422.419142411.71059200281.39669252161.2095712051.08187337520.98761075330.91434988610.8552960014902.19150842952.48370955342.56144490471.81121506181.47885090531.28072245241.14551298551.04570550350.96813517360.9056075309952.28220139952.58649491952.70374739941.91183812081.56100928891.35187369971.20915259581.10380025371.0219204610.95591906041002.37170824512.68793601112.84604989422.01246117971.64316767251.42302494711.27279220611.16189500391.07570574841.00623058991052.46010270032.78811639372.98835238892.11308423871.72532605611.49417619441.33643181641.21998975411.12949103581.05654211941102.5474506372.8871107223.13065488362.21370729771.80748443981.56532744181.40007142671.27808450421.18327632321.10685364891152.63381122142.98498605093.27295737832.31433035671.88964282341.63647868911.46371103711.33617925441.23706161071.15716517841202.71923785763.08180290533.4152598732.41495341571.9718012071.70762993651.52735064741.39427400461.29084689811.20747670781252.80377896483.17761616013.55756236772.51557647472.05395959061.77878118381.59099025771.45236875481.34463218551.25778823731302.88747862263.27247577233.69986486242.61619953372.13611797431.84993243121.6546298681.5104635051.39841747291.30809976681352.97037711173.36642739323.84216735712.71682259272.21827635791.92108367861.71826947831.56855825521.45220276031.35841129631403.05251136913.4595128853.98446985182.81744565162.30043474151.99223492591.78190908861.62665300541.50598804781.40872282581453.13391537513.55177075854.12677234652.91806871062.38259312512.06338617331.84554869891.68474775561.55977333521.45903435531503.21462048343.64323654794.26907484123.01869176962.46475150882.13453742061.90918830921.74284250581.61355862261.5093458848

Chart1000.25077761440.28421462960.42175599390.47799012640.57164934170.64786925390.70930620680.80388036770.83852549160.95032889040.96139576441.08958186631.07922574441.22312251031.19290609321.35196023891.30307870841.47682253621.41022615991.59825631461.51472321131.71668630621.61686850381.8324509711.71690506121.9458257361.81503411942.05703866861.91142477552.16628141222.00622091492.27371703692.09954630662.37948581422.19150842952.48370955342.28220139952.58649491952.37170824512.68793601112.46010270032.78811639372.5474506372.8871107222.63381122142.98498605092.71923785763.08180290532.80377896483.17761616012.88747862263.27247577232.97037711173.36642739323.05251136913.4595128853.13391537513.55177075853.21462048343.6432365479

ABA : RC frames without infillB : Steel frames without infillHeight h (m)Time period T secTime period v/s height

Chart20000000.25077761440.28421462960.14230249470.1006230590.08215838360.07115124740.42175599390.47799012640.28460498940.2012461180.16431676730.14230249470.57164934170.64786925390.42690748410.3018691770.24647515090.21345374210.70930620680.80388036770.56920997880.40249223590.32863353450.28460498940.83852549160.95032889040.71151247350.50311529490.41079191810.35575623680.96139576441.08958186630.85381496820.60373835390.49295030180.42690748411.07922574441.22312251030.9961174630.70436141290.57510868540.49805873151.19290609321.35196023891.13841995770.80498447190.6572670690.56920997881.30307870841.47682253621.28072245240.90560753090.73942545260.64036122621.41022615991.59825631461.42302494711.00623058990.82158383630.71151247351.51472321131.71668630621.56532744181.10685364890.90374221990.78266372091.61686850381.8324509711.70762993651.20747670780.98590060350.85381496821.71690506121.9458257361.84993243121.30809976681.06805898710.92496621561.81503411942.05703866861.99223492591.40872282581.15021737080.9961174631.91142477552.16628141222.13453742061.50934588481.23237575441.06726871032.00622091492.27371703692.27683991531.60996894381.3145341381.13841995772.09954630662.37948581422.419142411.71059200281.39669252161.2095712052.19150842952.48370955342.56144490471.81121506181.47885090531.28072245242.28220139952.58649491952.70374739941.91183812081.56100928891.35187369972.37170824512.68793601112.84604989422.01246117971.64316767251.42302494712.46010270032.78811639372.98835238892.11308423871.72532605611.49417619442.5474506372.8871107223.13065488362.21370729771.80748443981.56532744182.63381122142.98498605093.27295737832.31433035671.88964282341.63647868912.71923785763.08180290533.4152598732.41495341571.9718012071.70762993652.80377896483.17761616013.55756236772.51557647472.05395959061.77878118382.88747862263.27247577233.69986486242.61619953372.13611797431.84993243122.97037711173.36642739323.84216735712.71682259272.21827635791.92108367863.05251136913.4595128853.98446985182.81744565162.30043474151.99223492593.13391537513.55177075854.12677234652.91806871062.38259312512.06338617333.21462048343.64323654794.26907484123.01869176962.46475150882.1345374206

ABD 10D 20D 30D 40For A : T = 0.075 * h0.075

For B : T = 0.085 * h0.075

For others T = 0.09 * h / (d0.5)A : RC frames without infill panelsB: Steel frames without infill panelD 10 : Bldg. with infill & Base 10mD 20 : Bldg. with infill & Base 20mD 30 : Bldg. with infill & Base 30mD40 : Bldg with infill &Base 40mHeight h (m)Time period T Sec.Height v/s time period

HelpHelp on the work sheet : by Hemant Vadalkar1All the cells with yellow colour are for data input.Numbers in blue colour are not protected & can be changed.2No macro is used in this sheet.3Earthquake base shear calculations are done as per new IS1893-2002.4Provide the required parameters like building height, base dimension,soil strata, building type, zone factor, Importance factor etc.5Program will calculate the base shear Vb for the entire structure.To calculate the seismic weight, provide DL+appropriate fraction of LLfor every floor and height of floor. This is required to calculate thedistribution of EQ forces along the height of the building.6Reference may be made to IS1893-2002 for the different parameters.7Values of Zone factor Z are given at the location Col:AC Row:7 in sheet EQCalc.8At location, Column:O , Row:1, approximate column selfweight calculationcan be carried out based on column sizes at different floors in sheet EQCalc.9Graphs of Time period T v/s Height H can be viewed in sheet "Chart1"for RCC and steel frames without infill panels.Sheet named " Chart2" shows graph of T v/s H for RCC frames with infill panelsfor different base dimensions like 10m, 20m,30m and 40m.10For suggestions and comments contact Hemant Vadalkar at Email: vva@vsnl.com