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王其明1,2,陳志華3,馬克儉4,李晨2,阮潔1
(1 中國航天建設(shè)集團(tuán)有限公司, 北京 100071;
2 北京建工集團(tuán)有限公司博士后科研工作站, 北京 100055;
3 天津大學(xué)土木工程學(xué)院, 天津 300072; 4 貴州大學(xué)空間結(jié)構(gòu)研究中心, 貴陽 550003)
[摘要]鋼筋混凝土網(wǎng)格盒式筒中筒結(jié)構(gòu)作為一種新型結(jié)構(gòu)體系已經(jīng)得到應(yīng)用,為研究其在地震作用下的力學(xué)性能,本文將以唐山建華檢測有限公司辦公樓為例,進(jìn)行罕遇地震作用下網(wǎng)格盒式筒-核心筒結(jié)構(gòu)的彈塑性分析,利用EPDA軟件進(jìn)行彈塑性時程分析,研究該結(jié)構(gòu)體系在罕遇地震作用下的層間位移角、結(jié)構(gòu)位移等基本指標(biāo),重點關(guān)注框架和剪力墻連梁塑性鉸出現(xiàn)的時間和分布以及剪力墻裂縫的分布情況。并根據(jù)分析結(jié)論,對該體系建筑的抗震設(shè)計提出了優(yōu)化建議。
[關(guān)鍵詞]鋼筋混凝土; 網(wǎng)格盒式筒中筒; 時程分析
中圖分類號: TU375.4 文獻(xiàn)標(biāo)識碼: A 文章編號: 1002-848X(2015)S2-0352-04
Time-history analysis of reinforced concrete space-grid box-tube structure
Wang Qiming1,2, Chen Zhihua3, Ma Kejian4, Li Chen2, Ruan Jie1
(1 China Aerospace Construction Group Co., Ltd., Beijing 100071, China;
2 Post-doctoral Scientific Research Station, Beijing Architectural & Engineering Design Co.,Ltd., Beijing 100055, China;
3 School of Civil Engineering, Tianjin University, Tianjin 300072, China;
4 Space Structures Research Centre (SSRC) of Guizhou University, Guiyang 550003, China)
Abstract: Grid reinforced concrete frame structure, as a new structure system, has been applied into practice. In order to investigate its mechanical characteristics under seimic environment, the elastic-plastic of grid reinforced concrete frame structure under the impact of rare occurrence earthquake basing on a case study of Tangshan Jianhua Detection Limited Company office building was analyzed. Elastic-plastic analysis was carried out with the aid of EPDA software. Basic indexes as interlayer displacement angle and structural displacement were studied. The time and distributions of plastic hinge occurrences of frame structure and shear wall beam, as well as distribution of shear wall cracks have been paid significant focus. According to analysis results, advises on optimizing anti-seismic design of grid reinforced concrete were proposed.
Keywords: reinforced concrete; space-grid box-tube structure; time-history analysis
作者簡介:王其明,博士(后),一級注冊結(jié)構(gòu)工程師,Email:wqmpass@163.com。