灌浆套筒连接新型RC装配式剪力墙有限元分析  

Finite Element Analysis of New Type Precast RC Shear Wall Connected by Grouting Sleeve

作　　者：王远哲 黄炎生[2] 周宇 WANG Yuanzhe;HUANG Yansheng;ZHOU Yu(Guangdong Fourth Construction Engineering Co.,Ltd.Guangzhou 510100,China;School of Civil Engineering&Transportation,South China University of Technology Guangzhou 510641,China)

机构地区：[1]广东省第四建筑工程有限公司,广州510100 [2]华南理工大学土木与交通学院,广州510641

出　　处：《广东土木与建筑》2022年第12期89-92,共4页Guangdong Architecture Civil Engineering

摘　　要：针对RC装配式剪力墙水平与竖向拼缝的有效连接问题,提出了一种采用灌浆套筒连接装配式剪力墙的新型组合构造形式,使用有限元软件ABAQUS对其建模模拟,并与试验结果对比验证。为了研究不同剪跨比、轴压比等参数对该类剪力墙抗震性能的影响,基于已验证的有限元模型,建立13个不同参数的剪力墙模型进行单调加载分析。结果表明:水平拼缝界面强度足够时,试件承载力不随摩擦系数变化,水平滑移量随摩擦系数提高而降低,但下降速度逐渐减缓;装配式剪力墙的峰值承载力随剪跨比增大而减小,几乎呈现线性趋势;装配式剪力墙的峰值承载力随着轴压比增大而增大,而增幅逐渐放缓。Aiming at the problem of effective connection between horizontal and vertical abutments of RC precast shear walls,a new structural form of precast shear walls connected by grouting sleeves is proposed.The finite element software ABAQUS is used to model and simulate it,and the results are compared with the test results.In order to study the influence of different shear span ratio,axial compres‐sion ratio and other parameters on the seismic performance of this type of shear wall,13 shear wall models based on the verified finite ele‐ment model are established for monotonic loading analysis.The results show that bearing capacity does not change with the friction coeffi‐cient when the interface strength of the horizontal abutted joint is sufficient,and the horizontal slip decreases with the increase of the fric‐tion coefficient,but the decreasing speed gradually slows down;The peak bearing capacity of precast shear wall decreases with the increase of shear span ratio,almost showing a linear trend;The peak bearing capacity increases with the increase of axial compression ratio,but the rate gradually slows down.

关 键 词：预制剪力墙 套筒灌浆连接 U型套箍连接 有限元分析 抗震性能 

分 类 号：TU398.2[建筑科学—结构工程] TU352.11