不同截面形式高强混凝土剪力墙抗震性能研究  

Study on the Seismic Performance of High Strength Concrete Shear Walls With Different Cross Sections

作　　者：马芸 杨鹏辉[2] MA Yun;YANG Peng-hui(College of Civil Engineering and Architecture,Xinxiang University,Xinxiang 453003,China;Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]新乡学院土木工程与建筑学院,河南新乡453003 [2]西安建筑科技大学,陕西西安710055

出　　处：《混凝土与水泥制品》2021年第3期88-92,共5页China Concrete and Cement Products

基　　金：国家自然科学基金资助项目(51278402);河南省高等学校重点科研项目(21A560010)。

摘　　要：对6个带端柱高强混凝土剪力墙试件(DHPCW)和6个矩形截面型钢高强混凝土剪力墙试件(SHPCW)进行了拟静力试验,分析研究了二者的破坏形态、承载能力、变形能力和耗能能力。结果表明:带端柱高强混凝土剪力墙与矩形截面型钢高强混凝土剪力墙相比,前者的开裂荷载、屈服荷载、峰值荷载和极限荷载分别是后者的1.25~1.36倍、1.44~1.65倍、1.30~1.40倍和1.22~1.25倍,带端柱高强混凝土剪力墙具有较高的承载能力;带端柱高强混凝土剪力墙的位移延性系数是相同剪跨比矩形截面型钢高强混凝土剪力墙的1.31~1.60倍,总耗能值前者是后者的3.7~4.8倍,端柱作为约束边缘构件可以对剪力墙提供有效约束,显著提高剪力墙的变形能力和耗能能力。The quasi-static tests of six high-strength concrete shear walls with boundary columns(DHPCW)and six rectangular section steel reinforced high-strength concrete shear walls(SHPCW)were carried out,and the failure modes,bearing capacity,deformation capacity and energy dissipation capacity of the shear walls were analyzed.The results show that the cracking loads,yield loads,peak loads and ultimate loads of DHPCW are 1.25~1.36 times,1.44~1.65 times,1.30~1.40 times and 1.22~1.25 times of those of SHPCW,respectively.The displacement ductility coefficient of DHPCW is 1.31~1.60 times of that of SHPCW with the same shear span ratio,and the total energy consumption value of the former is 3.7~4.8 times of the latter.As a restrained edge member,the boundary column can effectively restrain the shear wall and significantly improve the deformation and energy dissipation capacity of the shear wall.

关 键 词：高强混凝土 剪力墙 端柱 承载能力 位移延性系数 

分 类 号：TU398.2[建筑科学—结构工程]