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（1 中國建筑科學(xué)研究院， 北京 100013； 

2  中華人民共和國住房和城鄉(xiāng)建設(shè)部防災(zāi)研究中心， 北京 100013）

［摘要］我國抗震規(guī)范強(qiáng)調(diào)應(yīng)估計(jì)框架結(jié)構(gòu)的圍護(hù)墻和隔墻的設(shè)置對(duì)結(jié)構(gòu)抗震的不利影響，但在具體工程設(shè)計(jì)中一般并未詳細(xì)考慮填充墻布置不均勻?qū)蚣芙Y(jié)構(gòu)的影響。歷次震害調(diào)查表明，填充墻的不均勻布置會(huì)對(duì)結(jié)構(gòu)抗震產(chǎn)生明顯不利影響。采用FEMA 356的建議將填充墻等效為斜撐，并基于OpenSees建立了可反映填充墻退出工作的有限元模型。通過對(duì)某框架結(jié)構(gòu)填充墻底層平面不均勻布置框架的動(dòng)力彈塑性分析，從結(jié)構(gòu)整體變形、構(gòu)件內(nèi)力及變形以及結(jié)構(gòu)破壞機(jī)理等方面，深入分析填充墻平面不均勻布置對(duì)框架結(jié)構(gòu)抗震性能的影響，進(jìn)而提出針對(duì)填充墻平面不均勻布置的改進(jìn)方案，并通過動(dòng)力彈塑性分析驗(yàn)證方案的有效性。

［關(guān)鍵詞］框架結(jié)構(gòu)； 填充墻平面不均勻布置； 動(dòng)力彈塑性分析； 改進(jìn)方案

中圖分類號(hào)：TU375-4文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2017)05-0064-08

Research on influence of plane irregular arrangements of bottom-layer  filler walls on seismic performance of frame structure

Luo Rui1, Tang Caoming1,2, Luo Kaihai1,2, Yang Tao1,2

(1 China Academy of Building Research, Beijing 100013, China; 2 Disaster Prevention Research Center, Ministry of Housing and Urban-Rural Development of the People′s Repubic China, Beijing 100013, China)

Abstract:Seismic design code of China provides that adverse effects of the retaining wall and partition wall of frame structure on the seismic performance of the structure should be estimated, but such influence of irregular arrangement of filler walls on the frame structure is not considered in detail in actual engineering design. The previous earthquake damage investigations show that irregular arrangement of filler walls has obvious adverse impact on the seismic performance of the structure. The recommendations of FEMA 356 were adopted to use equivalent strut to simulate filler walls, and the finite element model was established to simulate the work-quit process of filler walls by using OpenSees software. The dynamic elasto-plastic analysis was conducted on a frame structure with plane irregularly arranged filler walls at bottom layers. The influence of irregular arrangement of filler walls plane on the seismic performance of the frame structure was analyzed from perspectives of overall deformation, internal force and deformation of structure components, and structural failure mechanism. Then the improved scheme for plane irregular arrangement of filler walls was put forward, and the dynamic elastic-plastic analysis was conducted to verify the effectiveness of the scheme.

Keywords:frame structure; plane irregular arrangements of filler walls; dynamic elasto-plastic analysis; improved scheme

*中國建筑科學(xué)研究院應(yīng)用基金項(xiàng)目(20120122330730044)。

作者簡(jiǎn)介：羅瑞，碩士研究生，Email：915583959@qq.com。