多层强边柱冷成型钢结构体系抗震性能分析.docVIP

多层强边柱冷成型钢结构体系抗震性能分析 王星星 叶继红 东南大学土木工程学院 深部岩土力学与地下工程国家重点实验室(中国矿业大学) X 关注成功！ 加关注后您将方便地在 我的关注中得到本文献的被引频次变化的通知！ 新浪微博 腾讯微博 人人网 开心网 豆瓣网 网易微博 摘????要： 多层强边柱冷成型钢结构能够促进低层冷成型钢结构向多层住宅结构体系的发展.为了分析多层强边柱冷成型钢住宅结构体系在地震作用下的动力特性, 本文提出了该类结构的主要抗侧构件强边柱冷成型钢组合墙体可以考虑节点实际连接性能的简化计算模型, 进而得到整体结构抗震计算模型;根据作者前期开展的墙体抗剪试验结果并结合国外规范, 提出此类结构在地震作用下的侧向变形验算指标;对整体结构进行抗震性能研究.结果表明:考虑节点连接的等代拉压杆模型能够准确预测此类结构的实际受力特性;将1/300和1/75分别作为此类结构在多遇和罕遇地震作用下的层间位移角限值是安全可靠的;在9度罕遇地震作用下, 此类结构不会发生倒塌破坏;进行此类结构设计时, 不宜采用两个方向刚度差异过大的抗剪墙体组合, 同时应重点加强结构沿墙体开洞率较大方向的墙体抗剪强度;在特别高烈度地区进行此类结构设计时, 应兼顾墙体抗剪强度和墙体边柱的竖向承载能力, 避免结构因墙体边柱的压屈破坏而导致整体结构失效. 关键词： 多层冷成型钢结构; 方钢管混凝土强边柱; 抗侧设计指标; 抗震性能; 简化计算; 作者简介：王星星 (1986—) , 女, 博士研究生; 作者简介：叶继红 (1967—) , 女, 教授, 博士生导师, jhye@ 收稿日期：2017-01-09 基金：国家自然科学基金 Seismic analysis on mid-rise cold-formed steel structure with reinforced end studs WANG Xingxing YE Jihong School of Civil Engineering, Southeast University; State Key Laboratory for Geomechanics Deep Underground Engineering (China University of Mining and Technology) ; Abstract： Mid-rise cold-formed steel (CFS) structure with reinforced end studs can promote the development ofmid-rise CFS residential buildings from low-rise ones. To analyze the dynamic characteristics of mid-rise CFSresidential structures with reinforced end studs under earthquakes, a simplified calculation model of CFS shear wallwith reinforced end studs, which is the main lateral load-bearing structural component of the structure, wasproposed. The proposed model could consider the real behavior of beam-column joint, and then the seismiccalculation model of the whole structure was further obtained. Lateral design objectives for the structure underearthquake were proposed according to abroad specification and previous shear wall test results that performed byauthors, and seismic analysis on a mid-rise CFS structure with reinforced end studs was carried out. The resultsshow that equivalent-bracing model considering the mechanical behavior of beam-column joint can precisely