链接键间距对保温复合剪力墙轴心受压承载力的影响-《建筑科学与工程学报》

文章信息/Info

Title:: Impact of Key Link Space on Axial Compressive Capacity of Insulation Composite Shear Wall

Author(s):: WU Fang-bo, CHU Chun-yang, LI Jun, ZHOU Xu-hong; School of Civil Engineering, Hunan University

Keywords:: insulation composite shear wall; key link space; axial compressive capacity; reduction factor; failure mechanism

摘要:: 为研究链接键间距对保温复合剪力墙整体性能的影响，设计并制作了链接键间距分别为300，400，500 mm的3组试件，通过对比试验得到其破坏机理及荷载竖向位移曲线，并针对传统剪力墙存在的问题，提出了一种新型保温复合剪力墙。研究结果表明：试件的破坏形式为脆性破坏；链接键间距对构件轴心受压承载力影响很小，对平面外砂浆的稳定性和结构的破坏位置有一定影响；采用混凝土规范中钢筋混凝土柱轴心受压承载力计算公式计算保温复合剪力墙承载力时需要乘以折减系数。

Abstract:: To investigate the influence of key link space on whole performance of insulation composite shear wall, three groups of specimens were designed and made base on three forms of key link spaces of 300, 400, 500 mm, respectively. Through comparative experiments, the failure mechanism and loadvertical displacement curves of specimen were obtained. According to existing problems of the traditional shear wall, a new insulation composite shear wall was put forward. The study results show that the failure pattern of specimen is a kind of brittle fracture. The key link space has little influence on axial compressive capacity of specimen, and has some influence on the stability of mortar out of plane and failure location of structure. The formula used to calculate the axial compressive capacity of reinforced concrete columns in concrete code should be multiplied by reduction factor when used to calculate the bearing capacity of insulation composite shear wall.