单层双肢剪力墙结构弹性抗侧刚度分析

根据钢筋混凝土剪力墙结构在弹性阶段的受力特性,对单层双肢剪力墙结构在肢厚比、翼缘宽厚比及梁高变化时的抗侧刚度进行了研究,分析在不同的计算模型下结构抗侧刚度随各参数的变化规律,并与考虑填充墙时结构的抗侧刚度进行对比.分析表明,在墙肢间总长、厚度及层高不变时,肢厚比一定,抗侧刚度随着翼缘宽厚比增加呈对数变化；无论翼缘宽厚比是否变化,抗侧刚度随着肢厚比及梁高的增大呈抛物线变化,且在肢厚比小于4时,各模型的抗侧刚度基本相近.

Elastic Lateral Stiffness of Single-Story Coupled Shear Walls

Based on the mechanical performance of RC shear wall structures within elastic range,the elastic lateral stiffness of single-story coupled shear walls was studied in this paper.Paremeters of width-to-thickness ratio of flange,length depth ratio,beam depth have been investigated for different calculation models.The results indicate that,keeping the thickness and total length of piers,story height and length depth ratio consant,the elastic lateral stiffness increases as a logarithmic curve with the increase of width-to-thickness ratio of flange.Whatever the value of width-to-thickness ratio of flange changes or not,the elastic lateral stiffness presents a parabolic curve as the increase of length depth ratio and beam depth.When length depth ratio is less than 4,the elastic lateral stiffness values calculated with different models are almost same.