一多塔结构薄弱层问题

本人正在做一带缝的两塔结构，塔1为10层，塔2为4层，一层地下室车库连在一起，全框架结构，6度区，用PKPM08版SATWE计算，不知什么原因塔2上三层刚度比均小于1，均为薄弱层，麻烦哪位知道原因的网友来解释一下。先谢谢了。

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各层刚心、偏心率、相邻层侧移刚度比等计算信息
Floor No : 层号
Tower No : 塔号
Xstif，Ystif : 刚心的 X，Y 坐标值
Alf : 层刚性主轴的方向
Xmass，Ymass : 质心的 X，Y 坐标值
Gmass : 总质量
Eex，Eey : X，Y 方向的偏心率
Ratx，Raty : X，Y 方向本层塔侧移刚度与下一层相应塔侧移刚度的比值
Ratx1，Raty1 : X，Y 方向本层塔侧移刚度与上一层相应塔侧移刚度70%的比值
或上三层平均侧移刚度80%的比值中之较小者
RJX，RJY，RJZ: 结构总体坐标系中塔的侧移刚度和扭转刚度
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Floor No. 1 Tower No. 1
Xstif= 7.9268(m) Ystif= 73.6739(m) Alf = 28.7152(Degree)
Xmass= 12.9411(m) Ymass= 76.0826(m) Gmass= 1326.3024(t)
Eex = 0.1592 Eey = 0.0899
Ratx = 1.0000 Raty = 1.0000
Ratx1= 100.6463 Raty1= 122.6684 薄弱层地震剪力放大系数= 1.00
RJX = 4.6688E+07(kN/m) RJY = 7.6019E+07(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 2 Tower No. 1
Xstif= 10.8907(m) Ystif= 74.9850(m) Alf = 6.0175(Degree)
Xmass= 10.2128(m) Ymass= 75.1129(m) Gmass= 350.9588(t)
Eex = 0.0386 Eey = 0.0072
Ratx = 0.0142 Raty = 0.0116
Ratx1= 2.1460 Raty1= 1.8427 薄弱层地震剪力放大系数= 1.00
RJX = 6.6268E+05(kN/m) RJY = 8.8530E+05(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 2 Tower No. 2
Xstif= 26.5112(m) Ystif= 106.4275(m) Alf = 45.0000(Degree)
Xmass= 25.4783(m) Ymass= 106.3425(m) Gmass= 88.9967(t)
Eex = 0.1130 Eey = 0.0093
Ratx = 0.0019 Raty = 0.0012
Ratx1= 1.5666 Raty1= 1.5327 薄弱层地震剪力放大系数= 1.00
RJX = 8.7331E+04(kN/m) RJY = 9.1895E+04(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 3 Tower No. 1
Xstif= 10.8902(m) Ystif= 74.9841(m) Alf = 6.0175(Degree)
Xmass= 10.5788(m) Ymass= 75.2959(m) Gmass= 331.2930(t)
Eex = 0.0177 Eey = 0.0175
Ratx = 0.6307 Raty = 0.7095
Ratx1= 1.4058 Raty1= 1.3542 薄弱层地震剪力放大系数= 1.00
RJX = 4.1797E+05(kN/m) RJY = 6.2813E+05(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 3 Tower No. 2
Xstif= 26.5117(m) Ystif= 106.4271(m) Alf = 45.0000(Degree)
Xmass= 25.9341(m) Ymass= 105.9750(m) Gmass= 82.2309(t)
Eex = 0.0632 Eey = 0.0495
Ratx = 0.8214 Raty = 0.8431
Ratx1= 0.5252 Raty1= 0.4073 薄弱层地震剪力放大系数= 1.15
RJX = 7.1737E+04(kN/m) RJY = 7.7472E+04(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 4 Tower No. 1
Xstif= 10.8902(m) Ystif= 74.9841(m) Alf = 6.0175(Degree)
Xmass= 10.5788(m) Ymass= 75.2959(m) Gmass= 331.2930(t)
Eex = 0.0177 Eey = 0.0175
Ratx = 0.8890 Raty = 0.9462
Ratx1= 1.2502 Raty1= 1.3173 薄弱层地震剪力放大系数= 1.00
RJX = 3.7157E+05(kN/m) RJY = 5.9433E+05(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 4 Tower No. 2
Xstif= 26.5117(m) Ystif= 106.4271(m) Alf = 45.0000(Degree)
Xmass= 25.9341(m) Ymass= 105.9750(m) Gmass= 82.2309(t)
Eex = 0.0632 Eey = 0.0495
Ratx = 0.9754 Raty = 0.9729
Ratx1= 0.3226 Raty1= 0.2386 薄弱层地震剪力放大系数= 1.15
RJX = 6.9972E+04(kN/m) RJY = 7.5371E+04(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 5 Tower No. 1
Xstif= 10.8409(m) Ystif= 75.1404(m) Alf = 6.0175(Degree)
Xmass= 10.5848(m) Ymass= 74.9837(m) Gmass= 332.2571(t)
Eex = 0.0144 Eey = 0.0086
Ratx = 0.9917 Raty = 0.9745
Ratx1= 1.1503 Raty1= 1.2424 薄弱层地震剪力放大系数= 1.00
RJX = 3.6848E+05(kN/m) RJY = 5.7919E+05(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 5 Tower No. 2
Xstif= 26.5117(m) Ystif= 106.4271(m) Alf = 45.0000(Degree)
Xmass= 25.9341(m) Ymass= 105.9750(m) Gmass= 82.2309(t)
Eex = 0.0632 Eey = 0.0495
Ratx = 0.9623 Raty = 0.9551
Ratx1= 0.2102 Raty1= 0.1544 薄弱层地震剪力放大系数= 1.15
RJX = 6.7335E+04(kN/m) RJY = 7.1990E+04(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 6 Tower No. 1
Xstif= 10.8409(m) Ystif= 75.1411(m) Alf = 6.0175(Degree)
Xmass= 10.5849(m) Ymass= 74.9837(m) Gmass= 332.2556(t)
Eex = 0.0144 Eey = 0.0087
Ratx = 1.0174 Raty = 0.9770
Ratx1= 1.1045 Raty1= 1.1694 薄弱层地震剪力放大系数= 1.00
RJX = 3.7488E+05(kN/m) RJY = 5.6586E+05(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 7 Tower No. 1
Xstif= 10.7709(m) Ystif= 75.1177(m) Alf = 6.0175(Degree)
Xmass= 10.4203(m) Ymass= 74.9211(m) Gmass= 340.8854(t)
Eex = 0.0193 Eey = 0.0106
Ratx = 0.9901 Raty = 0.9663
Ratx1= 1.0509 Raty1= 1.0866 薄弱层地震剪力放大系数= 1.00
RJX = 3.7117E+05(kN/m) RJY = 5.4679E+05(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 8 Tower No. 1
Xstif= 11.4802(m) Ystif= 74.8722(m) Alf = 45.0000(Degree)
Xmass= 10.4638(m) Ymass= 74.8123(m) Gmass= 294.3552(t)
Eex = 0.0497 Eey = 0.0029
Ratx = 1.2263 Raty = 1.1624
Ratx1= 1.3889 Raty1= 1.3119 薄弱层地震剪力放大系数= 1.00
RJX = 4.5515E+05(kN/m) RJY = 6.3559E+05(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 9 Tower No. 1
Xstif= 11.4802(m) Ystif= 74.8722(m) Alf = 45.0000(Degree)
Xmass= 10.4638(m) Ymass= 74.8123(m) Gmass= 294.3552(t)
Eex = 0.0497 Eey = 0.0029
Ratx = 0.9810 Raty = 0.9948
Ratx1= 1.5088 Raty1= 1.4587 薄弱层地震剪力放大系数= 1.00
RJX = 4.4652E+05(kN/m) RJY = 6.3227E+05(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 10 Tower No. 1
Xstif= 11.4802(m) Ystif= 74.8722(m) Alf = 45.0000(Degree)
Xmass= 10.4638(m) Ymass= 74.8123(m) Gmass= 294.3553(t)
Eex = 0.0497 Eey = 0.0029
Ratx = 0.9468 Raty = 0.9794
Ratx1= 1.6796 Raty1= 1.5650 薄弱层地震剪力放大系数= 1.00
RJX = 4.2279E+05(kN/m) RJY = 6.1923E+05(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 11 Tower No. 1
Xstif= 11.3606(m) Ystif= 75.1873(m) Alf = 45.0000(Degree)
Xmass= 10.6768(m) Ymass= 75.0031(m) Gmass= 278.6310(t)
Eex = 0.0336 Eey = 0.0090
Ratx = 0.8505 Raty = 0.9128
Ratx1= 51.5511 Raty1= 54.5562 薄弱层地震剪力放大系数= 1.00
RJX = 3.5960E+05(kN/m) RJY = 5.6523E+05(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 12 Tower No. 1
Xstif= 5.6312(m) Ystif= 59.0721(m) Alf = 3.6957(Degree)
Xmass= 5.7191(m) Ymass= 59.7101(m) Gmass= 8.9195(t)
Eex = 0.0059 Eey = 0.2432
Ratx = 0.0242 Raty = 0.0229
Ratx1= 1.2500 Raty1= 1.2500 薄弱层地震剪力放大系数= 1.00
RJX = 8.7195E+03(kN/m) RJY = 1.2951E+04(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 12 Tower No. 2
Xstif= 5.7043(m) Ystif= 64.4153(m) Alf = -2.1154(Degree)
Xmass= 5.7745(m) Ymass= 63.7814(m) Gmass= 8.9195(t)
Eex = 0.0045 Eey = 0.2419
Ratx = 0.0248 Raty = 0.0226
Ratx1= 1.2500 Raty1= 1.2500 薄弱层地震剪力放大系数= 1.00
RJX = 8.9187E+03(kN/m) RJY = 1.2774E+04(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 12 Tower No. 3
Xstif= 13.9665(m) Ystif= 62.7925(m) Alf = 45.0000(Degree)
Xmass= 14.1468(m) Ymass= 62.8903(m) Gmass= 16.0153(t)
Eex = 0.0394 Eey = 0.0214
Ratx = 0.0458 Raty = 0.0439
Ratx1= 1.2500 Raty1= 1.2500 薄弱层地震剪力放大系数= 1.00
RJX = 1.6480E+04(kN/m) RJY = 2.4820E+04(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 12 Tower No. 4
Xstif= 7.7718(m) Ystif= 92.5518(m) Alf = 45.0000(Degree)
Xmass= 8.2056(m) Ymass= 93.0107(m) Gmass= 8.8318(t)
Eex = 0.1540 Eey = 0.1630
Ratx = 0.0305 Raty = 0.0224
Ratx1= 1.2500 Raty1= 1.2500 薄弱层地震剪力放大系数= 1.00
RJX = 1.0963E+04(kN/m) RJY = 1.2642E+04(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 12 Tower No. 5
Xstif= 11.8298(m) Ystif= 97.2727(m) Alf = 45.0000(Degree)
Xmass= 11.4414(m) Ymass= 96.7750(m) Gmass= 8.8315(t)
Eex = 0.1380 Eey = 0.1768
Ratx = 0.0304 Raty = 0.0197
Ratx1= 1.2500 Raty1= 1.2500 薄弱层地震剪力放大系数= 1.00
RJX = 1.0945E+04(kN/m) RJY = 1.1128E+04(kN/m) RJZ = 0.0000E+00(kN/m)
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Floor No. 12 Tower No. 6
Xstif= 17.1350(m) Ystif= 90.9349(m) Alf = 45.0000(Degree)
Xmass= 17.1155(m) Ymass= 91.2262(m) Gmass= 14.5071(t)
Eex = 0.0049 Eey = 0.0732
Ratx = 0.0611 Raty = 0.0472
Ratx1= 1.2500 Raty1= 1.2500 薄弱层地震剪力放大系数= 1.00
RJX = 2.1986E+04(kN/m) RJY = 2.6651E+04(kN/m) RJZ = 0.0000E+00(kN/m)
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抗倾覆验算结果
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抗倾覆弯矩Mr 倾覆弯矩Mov 比值Mr/Mov 零应力区(%)

X风荷载 92673.2 65490.1 1.42 56.00
Y风荷载 152871.1 37528.8 4.07 0.00
X 地 震 92673.2 18383.2 5.04 0.00
Y 地 震 152871.1 21783.5 7.02 0.00


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结构整体稳定验算结果
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层号 X向刚度 Y向刚度 层高 上部重量 X刚重比 Y刚重比
1 0.467E+08 0.760E+08 3.60 49087. 3424.05 5575.24
2 0.750E+06 0.977E+06 4.20 35824. 87.93 114.57
3 0.490E+06 0.706E+06 4.20 31424. 65.45 94.31
4 0.442E+06 0.670E+06 4.20 27289. 67.96 103.07
5 0.436E+06 0.651E+06 4.20 23154. 79.06 118.12
6 0.375E+06 0.566E+06 4.20 19009. 82.83 125.03
7 0.371E+06 0.547E+06 4.20 15686. 99.38 146.41
8 0.455E+06 0.636E+06 3.40 12277. 126.05 176.02
9 0.447E+06 0.632E+06 3.40 9334. 162.66 230.32
10 0.423E+06 0.619E+06 3.40 6390. 224.95 329.47
11 0.360E+06 0.565E+06 3.40 3447. 354.74 557.60
12 0.780E+05 0.101E+06 3.20 660. 378.10 489.35

该结构刚重比Di*Hi/Gi大于10,能够通过高规(5.4.4)的整体稳定验算
该结构刚重比Di*Hi/Gi大于20,可以不考虑重力二阶效应

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* 楼层抗剪承载力、及承载力比值 *
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Ratio_Bu: 表示本层与上一层的承载力之比

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层号 塔号 X向承载力 Y向承载力 Ratio_Bu:X,Y
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12 1 0.1830E+03 0.1311E+04 1.00 1.00
12 2 0.1486E+03 0.1312E+04 1.00 1.00
12 3 0.1037E+03 0.1113E+03 1.00 1.00
12 4 0.1378E+03 0.1378E+03 1.00 1.00
12 5 0.1378E+03 0.1378E+03 1.00 1.00
12 6 0.2080E+03 0.2080E+03 1.00 1.00
11 1 0.4786E+04 0.4879E+04 26.15 3.72
10 1 0.5321E+04 0.5438E+04 1.11 1.11
9 1 0.6031E+04 0.6167E+04 1.13 1.13
8 1 0.6708E+04 0.6861E+04 1.11 1.11
7 1 0.7314E+04 0.7591E+04 1.09 1.11
6 1 0.8249E+04 0.8597E+04 1.13 1.13
5 1 0.9013E+04 0.9446E+04 1.09 1.10
5 2 0.6383E+03 0.6411E+03 1.00 1.00
4 1 0.9876E+04 0.1039E+05 1.10 1.10
4 2 0.7619E+03 0.7652E+03 1.19 1.19
3 1 0.1053E+05 0.1113E+05 1.07 1.07
3 2 0.8813E+03 0.8860E+03 1.16 1.16
2 1 0.1128E+05 0.1182E+05 1.07 1.06
2 2 0.1015E+04 0.1021E+04 1.15 1.15
1 1 0.4936E+05 0.6300E+05 4.38 5.33

[ 本帖最后由 zym7372 于 2009-11-24 03:44 编辑 ]