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8/19/2019 tracotthep
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55 cmDầm l = 5.5 m
b = 22 cm
h = 55 cm
4 .
3 0
q = 0.303 t/m
3.9 mq = 0.077 kg/m
3.9 mq = 1.544 t/m
Sànb = 2.5 m
dày d = 0.12 mq = 0.75 t/m
Tæng t¶i träng lªn 1 m2 sµn :
Tĩnh tả !1 = 2."74 t/m#$%t tả !h = 0.24 t/m
! = 2.914 t/m
Néi lùc 8.01 Tm &'=
5 51 T & (
h ch)n =
Têng 110ht*ng =
Têng 220h
t*ng =
M - =
M + =
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5 51 Tm & (
5.50
T*ng
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STT Sè thanh
T,- * # T T#6
1 2 3 4 5 " 7 86 0.283 0.57 0.85 1.13 1.41 1.70 1.98 2.2"
8 0.503 1.01 1.51 2.01 2.51 3.02 3.52 4.02
10 0.785 1.57 2.3" 3.14 3.93 4.71 5.50 ".28
12 1.131 2.2" 3.39 4.52 5."5 ".79 7.92 9.05
14 1.539 3.08 4."2 ".1" 7.70 9.24 10.78 12.32
16 2.011 4.02 ".03 8.04 10.05 12.0" 14.07 1".08
18 2.545 5.09 7."3 10.18 12.72 15.27 17.81 20.3"
20 3.142 ".28 9.42 12.57 15.71 18.85 21.99 25.13
22 3.801 7."0 11.40 15.21 19.01 22.81 2"."1 30.41
25 4.909 9.82 14.73 19."3 24.54 29.45 34.3" 39.27
28 ".158 12.32 18.47 24."3 30.79 3".95 43.10 49.2"
30 7.0"9 14.14 21.21 28.27 35.34 42.41 49.48 5".55
32 8.042 1".08 24.13 32.17 40.21 48.25 5".30 "4.34
34 9.079 18.1" 27.24 3".32 45.40 54.48 "3.55 72."3
36 10.179 20.3" 30.54 40.72 50.89 "1.07 71.25 81.43
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38 11.341 22."8 34.02 45.3" 5".71 "8.05 79.39 90.73
40 12.5"" 25.13 37.70 50.27 "2.83 75.40 87.9" 100.53
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9 10 /m2.54 2.83 0.22
4.52 5.03 0.39
7.07 7.85 0."2
10.18 11.31 0.89
13.85 15.39 1.21
18.10 20.11 1.5822.90 25.45 2.00
28.27 31.42 2.47
34.21 38.01 2.98
44.18 49.09 3.85
55.42 "1.58 4.83
"3."2 70."9 5.55
72.38 80.42 ".31
81.71 90.79 7.13
91."1 101.79 7.99
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102.07 113.41 8.90
113.10 125."" 9.8"