钢框架-钢板剪力墙的结构影响系数
首发时间:2012-11-30
摘要:本文采用ANSYS建立了单榀钢框架-钢板剪力墙结构体系的壳单元模型,并对其进行了pushover分析,基于层间位移角求解了该结构体系的结构影响系数,并且系统地研究了加载模式、层间位移角限值和梁柱节点刚度对该结构体系结构影响系数的影响。通过对10层7跨刚接和半刚接钢框架-钢板剪力墙的pushover分析表明半刚性钢框架-钢板剪力墙的结构影响系数小于刚性钢框架-钢板剪力墙的结构影响系数,荷载作用方式对结构影响系数有影响,并且结构影响系数随着弹塑性层间位移角限值的增大而增大。
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Structural Response Modification Factor of Steel Frame-Steel Plate Shear Wall Structure
Abstract:Shell element model of a piece of steel frame-steel plate shear wall is established by ANSYS. Pushover analysis is conducted and structural response modification factor of this kind of structure is solved based on inter-story drift. In addition, effects of load mode, inter-story drift, stiffness of beam-column connection on structural response modification factor is studied. In this paper, the structural response modification factor of semi-rigid frame-steel plate shear wall and rigid frame-steel plate shear wall are obtained through pushover analysis of a 10 storey 7 span frame, the results show that the structural response modification factor of semi-rigid frame-steel plate shear wall is smaller than that of the rigid frame-steel plate shear wall, the load type have effect on the structural response modification factor and the factor will increases as the elastic-plastic layer drift angle limit increase.
Keywords: inter-story drift steel frame-steel plate shear wall structural response modification factor
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