高層結(jié)構(gòu)偏心率

1、按照高鋼規(guī)的計(jì)算公式，偏心率確實(shí)只和本層質(zhì)心和剛心間偏心值及本層側(cè)剛與扭剛比值有關(guān)。超限高層建筑工程抗震設(shè)防專項(xiàng)審查技術(shù)要點(diǎn)附錄一表二（不知你說(shuō)的“高參表是否指此表？)中1b項(xiàng)中確實(shí)規(guī)定了“偏心率大于15%或相鄰層質(zhì)心偏差大于15%”為一項(xiàng)不規(guī)則，個(gè)人認(rèn)為并非有誤，只是規(guī)定無(wú)論是扭轉(zhuǎn)位移比超過(guò)1.2還是偏心率超15%都可認(rèn)定為平面扭轉(zhuǎn)不規(guī)則，一個(gè)是從計(jì)算指標(biāo)上衡量，一個(gè)是從平面布置上去衡量，前者只不過(guò)是后者的結(jié)果而已，所以可不重復(fù)計(jì)入超限項(xiàng)。倒是對(duì)“相鄰層質(zhì)心偏差大于15%”與“樓層偏心率大于15%”這兩項(xiàng)參數(shù)定為“或”的并列關(guān)系有些不是很認(rèn)同，個(gè)人認(rèn)為相鄰層質(zhì)心偏差應(yīng)該更接近于大底盤偏置類指

2、標(biāo)，用來(lái)定性結(jié)構(gòu)豎向的不規(guī)則可能更為合適，所以不應(yīng)和扭轉(zhuǎn)位移比及偏心率成為并列指標(biāo)。也許是相鄰層質(zhì)心偏差也能夠影響到結(jié)構(gòu)的周期比一類的參數(shù)進(jìn)而加重結(jié)構(gòu)在地震作用下的扭轉(zhuǎn)效應(yīng)？本人水平有限不能做深入研究，所以以上只是個(gè)人看法，不值各位高人一曬。至于“該條是在（鋼規(guī)范中出現(xiàn)）是否普通混凝土結(jié)構(gòu)也需要滿足15%的要求”這個(gè)問(wèn)題我可以很負(fù)責(zé)任的回答你混凝土結(jié)構(gòu)也應(yīng)適用。原因很簡(jiǎn)單，因?yàn)槟阋欢犝f(shuō)過(guò)這樣一個(gè)道理“他大舅他二舅都是他舅，高桌子低板凳都是木頭”，所以“鋼結(jié)構(gòu)砼結(jié)構(gòu)都是結(jié)構(gòu)”也就不難理解了。再就是關(guān)于PKPM中結(jié)構(gòu)分析設(shè)計(jì)輸出文件中輸出的偏心率Eex Eey是否就是高鋼規(guī)中樓層偏心率的問(wèn)題，我

3、也可以很明確的告訴你這個(gè) Eex就是偏心率x。公式是這樣的：x=ex*sqrt（側(cè)剛/扭剛),隨便打開一個(gè)模型，本例為：0.1587=（5.11-0.61）*sqrt(2.7374E+08/2.1968E+11),具體可參見下圖。 (58.6 KB, 下載次數(shù): 5) 2014-12-29 17:47 上傳點(diǎn)擊文件名下載附件搜索到2010年9月結(jié)構(gòu)技術(shù)問(wèn)題匯總 中，偏心率計(jì)算公式為Eex=(Xmass-Xstif)/sqrt(Rjz/Rjx)。當(dāng)選擇剪彎剛度和地震剪力算法時(shí)，其偏心率使用剪彎剛度計(jì)算。當(dāng)選擇剪切剛度算法時(shí)，偏心率采用剪切剛度計(jì)算。注意，地震剪力與層間位移算法中，RJZ=0，未使

4、用該剛度進(jìn)行偏心率計(jì)算。現(xiàn)在的PKPM版本，層剛度比計(jì)算開關(guān)已關(guān)閉，均默認(rèn)為地震剪力與層間位的比，Wmass.out結(jié)果中的RJZ=0,那么，此時(shí)的Eex，Eey是怎么計(jì)算的呢，如果是平面和豎向均不規(guī)則結(jié)構(gòu)，該計(jì)算值是否需要手工復(fù)核？要用什么公式復(fù)核？附，wmass部分計(jì)算結(jié)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(活荷折減)= 11624.2461( 10342.0029)(t)Eex= 0.007

5、7Eey= 0.0228Ratx = 1.0000Raty = 1.0000Ratx1= 1.4286Raty1= 1.4286Ratx2= 1.0022Raty2= 1.0022薄弱層地震剪力放大系數(shù)= 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 = 1.0816E+11(kN/m)RJZ3/

6、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(活荷折減)= 13868.3799( 13072.1318)(t)Eex= 0.2822 Eey= 0.0627Ratx = 0.7704Raty = 0.6336Ratx1= 73541.2578Raty1= 77176.0859Ratx2= 57198.7539Raty2= 60214.3555薄弱層地震剪力放大系數(shù)=

7、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) Alf=27.3802(Degree)Xmass=

8、52.3939(m) Ymass=31.5545(m) Gmass(活荷折減)=5585.3936(4987.7861)(t)Eex= 0.1032Eey= 0.2058Ratx = 0.1673Raty = 0.2894Ratx1= 1.5805Raty1= 1.5817Ratx2= 1.6284Raty2= 1.6296薄弱層地震剪力放大系數(shù)= 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 = 9.1809E+06(kN/m)RJZ3

9、= 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(活荷折減)=5126.8911(4614.7510)(t)Eex= 0.1337Eey= 0.2072Ratx = 1.2478Raty = 1.2473Ratx1= 1.7940

10、Raty1= 1.7674Ratx2= 1.3954Raty2= 1.3746薄弱層地震剪力放大系數(shù)= 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 No. 5 Tower No. 1Xstif=4

11、9.2628(m) Ystif=26.3350(m) Alf=27.8414(Degree)Xmass=52.9033(m) Ymass=31.3551(m) Gmass(活荷折減)=5204.3896(4672.7939)(t)Eex= 0.1416Eey= 0.2089Ratx = 0.9692Raty = 0.9692Ratx1= 1.9171Raty1= 1.8278Ratx2= 1.3736Raty2= 1.3369薄弱層地震剪力放大系數(shù)= 1.00RJX1 = 6.3827E+07(kN/m)RJY1 = 6.6627E+07(kN/m)RJZ1 = 0.0000E+00(kN/m

12、)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(活荷折減)=5325.8193(4599.4907)(t)Eex= 0.15

13、20Eey= 0.2516Ratx = 0.8838Raty = 0.8851Ratx1= 1.5617Raty1= 1.5388Ratx2= 1.3251Raty2= 1.3056薄弱層地震剪力放大系數(shù)= 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 = 1.2158E+06(kN/m)RJZ3

14、/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(活荷折減)=5637.4951(4925.0234)(t)Eex= 0.1258Eey= 0.2248Ratx = 1.0745Raty = 1.0863Ratx1= 1.8069Raty1= 1.7347Ratx2= 1.4054Raty2= 1.3492薄弱層地震剪力放大系數(shù)= 1.00RJX1 = 6.0612E+0

15、7(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)Xmass=50.7241(m) Ymass=25.

16、1877(m) Gmass(活荷折減)=4082.9954(3717.0388)(t)Eex= 0.2000Eey= 0.1034Ratx = 0.8844Raty = 0.8556Ratx1= 1.6043Raty1= 1.6868Ratx2= 1.3228Raty2= 1.3556薄弱層地震剪力放大系數(shù)= 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)RJZ3 = 0.0000E+00(kN/m)RJ

17、X3/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(活荷折減)=2861.6838(2620.7795)(t)Eex= 0.3882Eey= 0.1025Ratx = 0.9484Raty = 0.9496Ratx1= 1.4556Raty1= 1.5371Ratx2=

18、1.2065Raty2= 1.2397薄弱層地震剪力放大系數(shù)= 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. 1Xstif=45.8577(m) Ystif=22.7

19、479(m) Alf=31.3949(Degree)Xmass=55.1438(m) Ymass=20.6005(m) Gmass(活荷折減)=2781.5840(2540.7332)(t)Eex= 0.3935Eey= 0.0955Ratx = 0.9524Raty = 0.9524Ratx1= 1.4826Raty1= 1.5447Ratx2= 1.1874Raty2= 1.2206薄弱層地震剪力放大系數(shù)= 1.00RJX1 = 4.8421E+07(kN/m)RJY1 = 4.9569E+07(kN/m)RJZ1 = 0.0000E+00(kN/m)RJX3 = 2.9186E+06(k

20、N/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(活荷折減)=2781.5835(2540.7327)(t)Eex= 0.3977Eey= 0.0951Ratx =

21、1.0000Raty = 1.0000Ratx1= 1.5515Raty1= 1.6022Ratx2= 1.2067Raty2= 1.2462薄弱層地震剪力放大系數(shù)= 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)RJZ3/H = 0.0000E+00(kN/m

22、)-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(活荷折減)=2787.6948(2552.4292)(t)Eex= 0.3819Eey= 0.1148Ratx = 0.9721Raty = 0.9728Ratx1= 1.6813Raty1= 1.6429Ratx2= 1.3077Raty2= 1.2778薄弱層地震剪力放大系數(shù)= 1.00RJX1 = 4.7072E+07(kN/m)RJY1 = 4.8220

23、E+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) Ymass=15.2752(m) Gmass(活荷折減

24、)=2288.4331(2092.3779)(t)Eex= 0.4524Eey= 0.2433Ratx = 0.8341Raty = 0.7471Ratx1= 1.7103Raty1= 1.7452Ratx2= 1.3302Raty2= 1.3574薄弱層地震剪力放大系數(shù)= 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/m)RJX3/H = 5.5497E+05(

25、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(活荷折減)=2288.4329(2092.3777)(t)Eex= 0.4515Eey= 0.2439Ratx = 1.0000Raty = 1.0000Ratx1= 2.1258Raty1= 2.1695Ratx2= 1.6534Raty2= 1.6

26、874薄弱層地震剪力放大系數(shù)= 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(活