【作者】 肖建春； 袁增嵘； 毛家意；

【Author】 XIAO Jianchun;YUAN Zengrong;MAO Jiayi;Spatial Structures Research center, Guizhou University;Guizhou Province Structural Engineering Key Laboratory;Zhejiang University Architectural Design & Research Institute Co., Ltd.;Guiyang City People’s Air Defense Office;

【机构】 贵州大学空间结构研究中心； 贵州省结构工程重点实验室； 浙江大学建筑设计研究院有限公司； 贵阳市人民防空办公室；

【摘要】 研究薄壁型钢-陶粒混凝土组合墙的抗震性能。对三种薄壁型钢-陶粒混凝土组合墙(无洞组合墙、加钢交叉支撑组合墙以及开洞组合墙)进行了低周往复循环加载的有限元数值模拟分析。从滞回曲线、骨架曲线、延性系数以及能量耗散等角度进行研究,找出受力规律。分析发现,陶粒混凝土先于薄壁型钢进入弹塑性,破坏时组合墙完全进入塑性。无洞组合墙抗震性能强于开洞组合墙,加钢交叉支撑有助于增强组合墙的刚度和抗震能力。抗震设计时,要控制组合墙开洞尺寸,开洞率应小于40%。当开洞率大于40%时应对洞口周边进行加强。更多还原

【Abstract】 The seismic behavior of thin-walled steel ceramsite concrete composite wall is studied. Three kinds of thin-walled steel ceramsite concrete composite walls(no hole composite wall, steel cross braced composite wall and open hole composite wall) were simulated by the finite element method. This paper studies the hysteretic curve, skeleton curve, ductility coefficient and energy dissipation to find out the law of force. It is found that ceramsite concrete enters into elastoplasticity before thin-walled steel, and composite wall completely enters into plasticity when it is damaged. The aseismic performance of the composite wall without holes is better than that of the composite wall with holes. Adding steel cross bracing is helpful to enhance the rigidity and aseismic capacity of the composite wall. In seismic design, the opening size of composite wall shall be controlled, and the hole rate shall be less than 40%. When the hole rate is more than 40%, the wall should be strengthened especially around the opening.更多还原