SPSW对钢框架结构体系抗震性能影响分析

Effect of SPSW on seismic resistance ability of steel frame system

利用有限元分析软件SAP2000建立了6层钢框架和钢板剪力墙(SPSW)厚度不同的钢框架—钢板剪力墙平面模型,分析了两种结构体系在8度罕遇地震作用下的地震响应,从抗侧力、自振周期和动力时程分析结果中结构的顶点位移、最大层间位移角方面比较厚度不同的SPSW对钢框架结构体系抗震性能的影响。结果表明:SPSW可以显著提高钢框架结构的抗震性能,且随着SPSW厚度的增加,结构的顶点位移逐渐减小;当厚度为8～16 mm时钢框架和SPSW的协调变形能力表现效果最佳。

The plane models of a six - store steel frame and steel frame - steel plate shear wall with steel plate shear wall （SPSW） in different thickness were established by using the finite element analysis software SAP2000, the structural response of which were analyzed under the eight seldom occurred earthquake, and the impacts of SPSW with different thickness to the steel structure were mainly compared from the aspects of stiffness, natural vibration period and relation of the coping displacement, relative storm displacement of the models. The results shows that SPSW can enhance capacity building of the earthquake obviously, and the coping displacement of the models is decreasing with the increase of the steel＇ s thickness; the structure with the thickness of 8 - 16mm has the best compatible stain performance.