钢框架双钢板内填混凝土组合剪力墙刚度匹配研究

Research on stiffness matching of steel frames with bi-steel-plate composite shear wall infilled concrete

内填混凝土双钢板组合剪力墙结构是一种新型的抗侧力体系,为了研究钢框架和组合剪力墙的刚度匹配,应用ABAQUS有限元软件分析了三层组合剪力墙在倒三角荷载作用下的滞回性能,通过改变组合剪力墙的跨度和厚度,得到不同的刚度特征值,分析刚度特征值取值对框架及组合剪力墙受力的影响,得到最佳的刚度特征值范围。根据刚度特征值取值范围,得到组合剪力墙墙厚计算公式。分析结果表明,刚度特征值是影响钢框架组合剪力墙结构受力状态和变形特征的主要因素,当刚度特征值取值在1.43-3.27时,钢框架和组合剪力墙刚度比较匹配,结构的受力状态较好。

Couple-steel-plates shear-wall infilled concrete structure is a new type of lateral-force resisting sys- tem. In order to study the stiffness matching of steel frame and combination shear wall, this paper analyzes the hysteretic performance of three storeys composite shear wall under the inverted triangle load based on the ABAQUS finite element software. By changing the span and thickness of the shear walls, the different rigidity characteristics is obtained, the value of rigidity characteristics impact on the force of frame and shear wall is an- alyzed, then the optimum range of stiffness characteristics value is also obtained. According to the range of stiff- ness characteristic values, a combined shear wall thickness formula is given. The results show that the rigidity characteristics is the main factor that influences the stress state and deformation characteristics of the steel frame and composite shear wall, when the rigidity characteristics value is at 1.43-3.27, the stiffness of steel frame and shear wall is reasonable, the stress state of the Structure is better.