剪力墻內(nèi)支撐布置方案對(duì)超高層建筑結(jié)構(gòu)抗震性能的影響*
劉斌1，楊蔚彪2，陸新征1，常為華2，葉列平1，齊五輝2，宮貞超2，田士川2
- 摘 要
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（1 清華大學(xué)土木工程安全與耐久教育部重點(diǎn)實(shí)驗(yàn)室，北京 100084; 2 北京市建筑設(shè)計(jì)研究院有限公司，北京 100045）
［摘要］以某超高層巨型框筒+核心筒結(jié)構(gòu)為例，分別采用兩種不同的剪力墻內(nèi)支撐布置方案，通過(guò)基本動(dòng)力特性分析、大震彈塑性分析和抗倒塌能力分析，比較了剪力墻內(nèi)支撐布置對(duì)超高層建筑結(jié)構(gòu)抗震性能的影響。研究表明，剪力墻內(nèi)支撐對(duì)結(jié)構(gòu)大震下的位移響應(yīng)有一定的積極影響，能夠顯著提高結(jié)構(gòu)的抗倒塌安全儲(chǔ)備。建議超高層建筑結(jié)構(gòu)設(shè)計(jì)時(shí)進(jìn)行抗倒塌分析，對(duì)易倒塌層墻體進(jìn)行內(nèi)支撐加強(qiáng)，以提高抗倒塌安全儲(chǔ)備。［關(guān)鍵詞］超高層建筑; 剪力墻內(nèi)支撐; 彈塑性分析; 抗倒塌分析; 抗倒塌安全儲(chǔ)備中圖分類號(hào)：TU973.2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2016)03-0001-05
Influence of the arrangement of embedded brace in shear wall on the seismic performance of a super-tall buildingLiu Bin1, Yang Weibiao2, Lu Xinzheng1, Chang Weihua2, Ye Lieping1,Qi Wuhui2, Gong Zhenchao2, Tian Shichuan2(1 Key Laboratory of Civil Engineering Safety and Durability of China Ministry of Education, Tsinghua University, Beijing 100084, China; 2 Beijing Institute of Architectural Design, Beijing 100045, China)Abstract:A super-tall building with mega framed-tube and corewall was taken as an example. Two different schemes of embedded brace in shear wall were adopted. The influence of the embedded brace in shear wall on the seismic performance of super-tall buildings was compared through the analysis of basic dynamic characteristics, the elasto-plastic analysis under the rare earthquake and the collapse capability analysis. The research shows that the embedded brace in shear wall has a positive effect on the displacement response of the structure under the rare earthquake, and can significantly improve the structure's safety reserve for collapse resistance. It is suggested that in the structural design of super-tall buildings, the collapse analysis should be carried out and the embedded brace should be set in shear wall of weak layers in order to improve the safety reserve of collapse resistance.Keywords:super-tall building; embedded brace in shear wall; elasto-plastic analysis; collapse analysis; safety reserve for collapse resistance
*國(guó)家自然科學(xué)基金(51222804，91315301，51261120377)，北京市自然科學(xué)基金(8142024)。作者簡(jiǎn)介：劉斌，碩士，Email：yuzhouliubin@163.com。
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