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程志輝，胡智榮（華南理工大學(xué)建筑設(shè)計(jì)研究院，廣州 510641）

［摘要］推導(dǎo)了底部架空的填充墻框架結(jié)構(gòu)的側(cè)移模式，用基于位移的抗震設(shè)計(jì)方法分別得到大震和小震下架空層的基底剪力和剪力放大系數(shù)β，對(duì)影響β值的參數(shù)以及β的取值范圍進(jìn)行了分析探討，并得到相應(yīng)的計(jì)算圖表，可較方便地通過(guò)小震計(jì)算進(jìn)行架空層抗大震倒塌的計(jì)算。算例計(jì)算表明該方法簡(jiǎn)單可行，并通過(guò)倒塌率的計(jì)算驗(yàn)證了方法的有效性。

［關(guān)鍵詞］填充墻；框架結(jié)構(gòu)；架空層；剪力放大系數(shù)

中圖分類號(hào)：TU973文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2012)04-0084-06

Research on shear amplification coefficient of overhead layer of infilled frame

Cheng Zhihui, Hu Zhirong(Architectural Design & Research Institute of South China University of Technology, Guangzhou 510641, China)

Abstract:According to the lateral displacement mode of overhead layer of infilled frame and the anti-seismic design method based on displacement, the base shear and the shear amplification coefficient β of overhead layer under strong and small earthquake were obtained. According to analysis and research of the parameters that influencing β and the range of β, the corresponding nomograph was got, and the calculation of collapse resistance under strong earthquake could be gained more easily through calculation under small earthquake. The calculating example indicates that the method is simple and feasible, and the calculation of  collapsing ratio proves that the method is effective.

Keywords:infilled wall; frame structure; overhead layer; shear amplification coefficient 

作者簡(jiǎn)介：程志輝，碩士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，注冊(cè)監(jiān)理工程師，Email:dezhchen@scut.edu.cn。

參考文獻(xiàn)

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