钢框架内填钢筋混凝土剪力墙混合结构破坏机理及塑性分析被引量：10

THE FAILURE MECHANISM AND PLASTIC ANALYSIS OF COMPOSITE STEEL FRAME-REINFORCED CONCRETE INFILL WALL STRUCTURES

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摘要对一榀1/3比例的半刚性钢框架内填钢筋混凝土剪力墙混合结构试验模型实旅了循环加载试验，在此基础上对结构的破坏机理进行了分析；提出了基于塑性理论的侧向极限荷载的简化计算方法，其中考虑了钢框架与剪力墙的相互作用、半刚性节点、组合栓钉及斜向压杆力的影响；利用ANSYS建立了非线性有限元模型：通过试验值、塑性理论值及有限元值的比较，塑性计算结果较稳定，低估实际承载力7％～8％，表明简化塑性分析方法是可行的；综合研究结果，进一步揭示了结构的破坏机理。 A one-third scale specimen of composite steel frame-reinforced concrete infill wall structures with semi-rigid connections was tested under cyclic load. The failure mechanisms were analyzed and a simplified calculation method for lateral ultimate strength was proposed based on plastic theory, in which the interaction effects between steel frames and infill walls, semi-rigid connections, studs and diagonal struts forces were considered. The finite element models using ANSYS software were setup for non-linear analysis. Through a comparison of experiment results, plastic theory results and finite element results, it was found that the calculated values by plastic-theory were stable, and they underestimated the lateral ultimate strength by an amout of 7%-8%, implying the simplified calculation method is feasible. Finally the failure mechanisms were revealed.

作者彭晓彤顾强

机构地区济南大学土木建筑学院苏州科技学院土木工程系

出处《工程力学》 EI CSCD 北大核心 2011年第8期56-61,共6页 Engineering Mechanics

基金国家自然科学基金项目(50378058)

关键词组合钢框架内填钢筋混凝土剪力墙破坏机理塑性分析简化计算 composite steel frame reinforced concrete infill wall failure mechanism plastic analysis simplified calculation

分类号 TU398.2 [建筑科学—结构工程]

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参考文献10

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