高层结构偏心率

1、.按照高钢规的计算公式，偏心率确实只和本层质心和刚心间偏心值及本层侧刚与扭刚比值有关。超限高层建筑工程抗震设防专项审查技术要点附录一表二（不知你说的“高参表是否指此表？)中1b项中确实规定了“偏心率大于15%或相邻层质心偏差大于15%”为一项不规则，个人认为并非有误，只是规定无论是扭转位移比超过1.2还是偏心率超15%都可认定为平面扭转不规则，一个是从计算指标上衡量，一个是从平面布置上去衡量，前者只不过是后者的结果而已，所以可不重复计入超限项。倒是对“相邻层质心偏差大于15%”与“楼层偏心率大于15%”这两项参数定为“或”的并列关系有些不是很认同，个人认为相邻层质心偏差应该更接近于大底盘偏置类

2、指标，用来定性结构竖向的不规则可能更为合适，所以不应和扭转位移比及偏心率成为并列指标。也许是相邻层质心偏差也能够影响到结构的周期比一类的参数进而加重结构在地震作用下的扭转效应？本人水平有限不能做深入研究，所以以上只是个人看法，不值各位高人一晒。至于“该条是在（钢规范中出现）是否普通混凝土结构也需要满足15%的要求”这个问题我可以很负责任的回答你混凝土结构也应适用。原因很简单，因为你一定听说过这样一个道理“他大舅他二舅都是他舅，高桌子低板凳都是木头”，所以“钢结构砼结构都是结构”也就不难理解了。再就是关于PKPM中结构分析设计输出文件中输出的偏心率Eex Eey是否就是高钢规中楼层偏心率的问题，

3、我也可以很明确的告诉你这个 Eex就是偏心率x。公式是这样的：x=ex*sqrt（侧刚/扭刚),随便打开一个模型，本例为：0.1587=（5.11-0.61）*sqrt(2.7374E+08/2.1968E+11),具体可参见下图。QQ图片20141229172226.jpg (58.6 KB, 下载次数: 5) 2014-12-29 17:47 上传点击文件名下载附件搜索到2010年9月结构技术问题汇总 中，偏心率计算公式为Eex=(Xmass-Xstif)/sqrt(Rjz/Rjx)。当选择剪弯刚度和地震剪力算法时，其偏心率使用剪弯刚度计算。当选择剪切刚度算法时，偏心率采用剪切刚度计算。注

4、意，地震剪力与层间位移算法中，RJZ=0，未使用该刚度进行偏心率计算。现在的PKPM版本，层刚度比计算开关已关闭，均默认为地震剪力与层间位的比，Wmass.out结果中的RJZ=0,那么，此时的Eex，Eey是怎么计算的呢，如果是平面和竖向均不规则结构，该计算值是否需要手工复核？要用什么公式复核？附，wmass部分计算结果Floor No. 1 Tower No. 1Xstif=47.7126(m) Ystif=42.8506(m) Alf= -11.5640(Degree)Xmass=47.9817(m) Ymass=41.9354(m) Gmass(活荷折减)= 11624.2461( 1

5、0342.0029)(t)Eex= 0.0077Eey= 0.0228Ratx = 1.0000Raty = 1.0000Ratx1= 1.4286Raty1= 1.4286Ratx2= 1.0022Raty2= 1.0022薄弱层地震剪力放大系数= 1.00RJX1 = 4.0949E+08(kN/m)RJY1 = 3.0055E+08(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 5.0319E+11(kN/m)RJY3 = 4.9754E+11(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 1.0939E+11(kN/m)RJY3/H

6、= 1.0816E+11(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No. 2 Tower No. 1Xstif=50.5379(m) Ystif=41.3853(m) Alf=-9.8819(Degree)Xmass=40.3050(m) Ymass=44.1849(m) Gmass(活荷折减)= 13868.3799( 13072.1318)(t)Eex= 0.2822 Eey= 0.0627Ratx = 0.7704Raty = 0.6336Ratx1= 73541.2578Raty1= 77176.0859Ratx2= 57198.7539Raty2=

7、60214.3555薄弱层地震剪力放大系数= 1.00RJX1 = 3.1546E+08(kN/m)RJY1 = 1.9042E+08(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 5.0319E+11(kN/m)RJY3 = 4.9754E+11(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 9.8665E+10(kN/m)RJY3/H = 9.7556E+10(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No. 3 Tower No. 1Xstif=49.8522(m) Ystif=26.8098(m) Al

8、f=27.3802(Degree)Xmass=52.3939(m) Ymass=31.5545(m) Gmass(活荷折减)=5585.3936(4987.7861)(t)Eex= 0.1032Eey= 0.2058Ratx = 0.1673Raty = 0.2894Ratx1= 1.5805Raty1= 1.5817Ratx2= 1.6284Raty2= 1.6296薄弱层地震剪力放大系数= 1.00RJX1 = 5.2777E+07(kN/m)RJY1 = 5.5112E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 9.7747E+06(kN/m)RJY3

9、= 9.1809E+06(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 1.9166E+06(kN/m)RJY3/H = 1.8002E+06(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No. 4 Tower No. 1Xstif=49.3221(m) Ystif=26.3728(m) Alf=28.1791(Degree)Xmass=52.7551(m) Ymass=31.3531(m) Gmass(活荷折减)=5126.8911(4614.7510)(t)Eex= 0.1337Eey= 0.2072Ratx = 1.2478Rat

10、y = 1.2473Ratx1= 1.7940Raty1= 1.7674Ratx2= 1.3954Raty2= 1.3746薄弱层地震剪力放大系数= 1.00RJX1 = 6.5853E+07(kN/m)RJY1 = 6.8742E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 8.8353E+06(kN/m)RJY3 = 8.2920E+06(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 2.2949E+06(kN/m)RJY3/H = 2.1538E+06(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor N

11、o. 5 Tower No. 1Xstif=49.2628(m) Ystif=26.3350(m) Alf=27.8414(Degree)Xmass=52.9033(m) Ymass=31.3551(m) Gmass(活荷折减)=5204.3896(4672.7939)(t)Eex= 0.1416Eey= 0.2089Ratx = 0.9692Raty = 0.9692Ratx1= 1.9171Raty1= 1.8278Ratx2= 1.3736Raty2= 1.3369薄弱层地震剪力放大系数= 1.00RJX1 = 6.3827E+07(kN/m)RJY1 = 6.6627E+07(kN/m

12、)RJZ1 = 0.0000E+00(kN/m)RJX3 = 7.0354E+06(kN/m)RJY3 = 6.7025E+06(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 1.8274E+06(kN/m)RJY3/H = 1.7409E+06(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No. 6 Tower No. 1Xstif=48.6590(m) Ystif=26.0332(m) Alf=30.2346(Degree)Xmass=52.5063(m) Ymass=32.0624(m) Gmass(活荷折减)=5325.8193

13、(4599.4907)(t)Eex= 0.1520Eey= 0.2516Ratx = 0.8838Raty = 0.8851Ratx1= 1.5617Raty1= 1.5388Ratx2= 1.3251Raty2= 1.3056薄弱层地震剪力放大系数= 1.00RJX1 = 5.6408E+07(kN/m)RJY1 = 5.8974E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 5.2168E+06(kN/m)RJY3 = 5.1065E+06(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 1.2421E+06(kN/m)RJY3/H

14、 = 1.2158E+06(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No. 7 Tower No. 1Xstif=48.7301(m) Ystif=26.3981(m) Alf=28.8542(Degree)Xmass=51.9712(m) Ymass=31.8441(m) Gmass(活荷折减)=5637.4951(4925.0234)(t)Eex= 0.1258Eey= 0.2248Ratx = 1.0745Raty = 1.0863Ratx1= 1.8069Raty1= 1.7347Ratx2= 1.4054Raty2= 1.3492薄弱层地震剪力放大系

15、数= 1.00RJX1 = 6.0612E+07(kN/m)RJY1 = 6.4064E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 4.7720E+06(kN/m)RJY3 = 4.7408E+06(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 1.2395E+06(kN/m)RJY3/H = 1.2314E+06(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No. 8 Tower No. 1Xstif=45.9842(m) Ystif=22.8572(m) Alf=30.8538(Degree)Xma

16、ss=50.7241(m) Ymass=25.1877(m) Gmass(活荷折减)=4082.9954(3717.0388)(t)Eex= 0.2000Eey= 0.1034Ratx = 0.8844Raty = 0.8556Ratx1= 1.6043Raty1= 1.6868Ratx2= 1.3228Raty2= 1.3556薄弱层地震剪力放大系数= 1.00RJX1 = 5.3607E+07(kN/m)RJY1 = 5.4812E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 3.7728E+06(kN/m)RJY3 = 3.9042E+06(kN/m)RJ

17、Z3 = 0.0000E+00(kN/m)RJX3/H = 9.7994E+05(kN/m)RJY3/H = 1.0141E+06(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No. 9 Tower No. 1Xstif=45.7043(m) Ystif=22.8103(m) Alf=29.9461(Degree)Xmass=54.9341(m) Ymass=20.5018(m) Gmass(活荷折减)=2861.6838(2620.7795)(t)Eex= 0.3882Eey= 0.1025Ratx = 0.9484Raty = 0.9496Ratx1= 1.4

18、556Raty1= 1.5371Ratx2= 1.2065Raty2= 1.2397薄弱层地震剪力放大系数= 1.00RJX1 = 5.0842E+07(kN/m)RJY1 = 5.2047E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 3.1690E+06(kN/m)RJY3 = 3.2001E+06(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 8.2313E+05(kN/m)RJY3/H = 8.3120E+05(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No.10 Tower No. 1Xsti

19、f=45.8577(m) Ystif=22.7479(m) Alf=31.3949(Degree)Xmass=55.1438(m) Ymass=20.6005(m) Gmass(活荷折减)=2781.5840(2540.7332)(t)Eex= 0.3935Eey= 0.0955Ratx = 0.9524Raty = 0.9524Ratx1= 1.4826Raty1= 1.5447Ratx2= 1.1874Raty2= 1.2206薄弱层地震剪力放大系数= 1.00RJX1 = 4.8421E+07(kN/m)RJY1 = 4.9569E+07(kN/m)RJZ1 = 0.0000E+00(k

20、N/m)RJX3 = 2.9186E+06(kN/m)RJY3 = 2.8683E+06(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 7.5808E+05(kN/m)RJY3/H = 7.4501E+05(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No.11 Tower No. 1Xstif=45.7311(m) Ystif=22.7364(m) Alf=30.2926(Degree)Xmass=55.1438(m) Ymass=20.6005(m) Gmass(活荷折减)=2781.5835(2540.7327)(t)Eex= 0

21、.3977Eey= 0.0951Ratx = 1.0000Raty = 1.0000Ratx1= 1.5515Raty1= 1.6022Ratx2= 1.2067Raty2= 1.2462薄弱层地震剪力放大系数= 1.00RJX1 = 4.8421E+07(kN/m)RJY1 = 4.9569E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 2.7311E+06(kN/m)RJY3 = 2.6110E+06(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 7.0937E+05(kN/m)RJY3/H = 6.7819E+05(kN/m)R

22、JZ3/H = 0.0000E+00(kN/m)-Floor No.12 Tower No. 1Xstif=45.9834(m) Ystif=23.0456(m) Alf=32.6127(Degree)Xmass=54.9427(m) Ymass=20.4674(m) Gmass(活荷折减)=2787.6948(2552.4292)(t)Eex= 0.3819Eey= 0.1148Ratx = 0.9721Raty = 0.9728Ratx1= 1.6813Raty1= 1.6429Ratx2= 1.3077Raty2= 1.2778薄弱层地震剪力放大系数= 1.00RJX1 = 4.7072

23、E+07(kN/m)RJY1 = 4.8220E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 2.5146E+06(kN/m)RJY3 = 2.3280E+06(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 6.5315E+05(kN/m)RJY3/H = 6.0469E+05(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No.13 Tower No. 1Xstif=40.7284(m) Ystif=20.4403(m) Alf= -43.4203(Degree)Xmass=50.3215(m) Ymas

24、s=15.2752(m) Gmass(活荷折减)=2288.4331(2092.3779)(t)Eex= 0.4524Eey= 0.2433Ratx = 0.8341Raty = 0.7471Ratx1= 1.7103Raty1= 1.7452Ratx2= 1.3302Raty2= 1.3574薄弱层地震剪力放大系数= 1.00RJX1 = 3.9264E+07(kN/m)RJY1 = 3.6026E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 2.1366E+06(kN/m)RJY3 = 2.0243E+06(kN/m)RJZ3 = 0.0000E+00(kN

25、/m)RJX3/H = 5.5497E+05(kN/m)RJY3/H = 5.2580E+05(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No.14 Tower No. 1Xstif=40.7537(m) Ystif=20.4552(m) Alf= -42.0385(Degree)Xmass=50.3215(m) Ymass=15.2752(m) Gmass(活荷折减)=2288.4329(2092.3777)(t)Eex= 0.4515Eey= 0.2439Ratx = 1.0000Raty = 1.0000Ratx1= 2.1258Raty1= 2.1695

26、Ratx2= 1.6534Raty2= 1.6874薄弱层地震剪力放大系数= 1.00RJX1 = 3.9264E+07(kN/m)RJY1 = 3.6027E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 1.7847E+06(kN/m)RJY3 = 1.6571E+06(kN/m)RJZ3 = 0.0000E+00(kN/m)RJX3/H = 4.6356E+05(kN/m)RJY3/H = 4.3041E+05(kN/m)RJZ3/H = 0.0000E+00(kN/m)-Floor No.15 Tower No. 1Xstif=40.5791(m) Ystif=20.3656(m) Alf= -42.2615(Degree)Xmass=52.3331(m) Ymass=16.7003(m) Gmass(