U形截面剪力墙抗震性能研究  

Study on seismic behavior of U-shaped shear wall

作　　者：李芳琪 魏天园 史青菁 LI Fangqi;WEI Tianyuan;SHI Qingjing(Shangqiu University,Shangqiu 476000,China;State Gird Luoyang Power Supply Company,Luoyang 471000,China)

机构地区：[1]商丘学院,河南商丘476000 [2]国网洛阳供电公司,河南洛阳471000

出　　处：《世界地震工程》2023年第3期107-117,共11页World Earthquake Engineering

摘　　要：异形剪力墙具有较好的承载能力并且有效解决了建筑结构柱楞突出的问题,提高了用户的居住体验,是高层建筑体系中的一种新型结构。在异形剪力墙结构体系中,矩形、L形和T形截面混凝土剪力墙研究广泛,且在工程中应用较多,但针对U形截面混凝土剪力墙承载性能的相关研究却很少。本文以某市新建地铁运营库项目为背景,优化剪力墙各结构的比例,设计出U形截面混凝土剪力墙试件并在两个方向施加低周往复拟静力荷载,分析其破坏机理进而评估U形截面剪力墙的抗震性能。此外,利用ABAQUS仿真平台建立U形截面剪力墙的有限元模型并对其进行数值分析,验证了U形截面剪力墙的破坏形式和承载力。最后,结合工程对U形截面剪力墙的设计给出了合理建议和构造措施,并为相关工程应用提供了参考。As a novel structure in the high-rise buildings,the special-shaped shear wall shave positive bearing capacity and avoid the phenomenon of prominent columns in structure effectively.A certain amount of special-shaped shear walls have been studied extensively,such as L-shaped and T-shaped,except the U-shaped shear wall.This paper presents a series of quasi-static tests of two U-shaped reinforced concrete(RC)shear wall specimens subjected to lateral cyclic loading.Then,the finite element model is established by ABAQUS software to verify the failure mode and bearing capacity of the U-shaped shear wall.Finally,reasonable suggestions and structural measures are given for the design of U-shaped shear wall in this project,and reference is provided for relevant engineering applications.

关 键 词：U形截面剪力墙 抗震性能 低周往复试验 静力弹塑性分析 

分 类 号：TU352.11[建筑科学—结构工程]