某細(xì)腰平面超高層住宅地震作用下受力分析
譚偉1，王文濤1，汝振1，施永芒1，吳俊權(quán)2
- 摘 要
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（1 悉地國(guó)際設(shè)計(jì)顧問(wèn)（深圳）有限公司， 深圳 518057； 2 華潤(rùn)置地（深圳）有限公司， 深圳 518001）
［摘要］結(jié)合某細(xì)腰平面超高層住宅工程案例，對(duì)該類(lèi)結(jié)構(gòu)地震作用計(jì)算過(guò)程中樓蓋假定的適用性、CQC反應(yīng)譜法及彈性時(shí)程直接積分法計(jì)算結(jié)果的差異、結(jié)構(gòu)阻尼比對(duì)細(xì)腰構(gòu)件內(nèi)力的影響以及細(xì)腰程度限值影響因素等進(jìn)行了對(duì)比分析，探討了常規(guī)分析方法對(duì)細(xì)腰部位構(gòu)件受力分析的不足之處，得到了各因素對(duì)計(jì)算結(jié)果的誤差范圍。最后通過(guò)動(dòng)力彈塑性非線性分析方法校核了工程案例細(xì)腰部位在大震作用下的表現(xiàn)。分析結(jié)果表明，非細(xì)腰部位可采用分塊剛性樓蓋假定的CQC反應(yīng)譜法，細(xì)腰部位可采用彈性時(shí)程分析方法進(jìn)行分析和設(shè)計(jì)；常阻尼模型能偏安全地考慮高階不利振型對(duì)細(xì)腰的影響；大震下細(xì)腰損傷嚴(yán)重，增加連接板能適當(dāng)改善細(xì)腰處的構(gòu)件損傷。［關(guān)鍵詞］超高層住宅; 細(xì)腰平面; 樓蓋假定; 地震作用計(jì)算方法; 阻尼比中圖分類(lèi)號(hào)：TU375，TU318.2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2016)06-0029-07
Analysis on seismic behavior of super high-rise residential building with wasp-waisted planeTan Wei1, Wang Wentao1, Ru Zhen1, Shi Yongmang1, Wu Junquan2(1 CCDI Group, Shenzhen 518057, China; 2 China Resources(Shenzhen) Co., Ltd., Shenzhen 518001, China)Abstract: Combined with a practical engineering of a super high-rise residential building with wasp-waisted plan, applicability for the assumption of slab model in wasp-waisted plan structure under earthquake, difference between the result of complete quadratic combination method and elastic time-history dynamic analysis, effect of damping ratio on inner force of wasp-waisted components and influence factor of wasp-waisted limited value were contrastive analyzed. The shortcomings of force analysis for wasp-waisted components by using regular analysis were discussed. The error range of calculation results for different factors was obtained. The behaviors of wasp-waisted zone of the engineering projects were checked according to nonlinear elastic-plastic dynamic analysis at the end. The analysis results show that elements out of the wasp-waist can be designed using CQC response spectrum method with block rigid floor assumption, and the wasp-waist part can be designed using time-history method. Constant damping ratio model leads to go over safety to consider higher order vibration mode. Wasp-waist damaged seriously under severe earthquake, and connecting plate can improve the damage of wasp-waist.Keywords:super high-rise residential building; wasp-waisted plane; assumption of slab model; calculation method of earthquake; damping ratio
作者簡(jiǎn)介：譚偉，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：tanwei2005@sina.com。
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