高层建筑施工剪力墙结构连梁节点受力数值模拟  

Numerical Simulation of Shear Wall Structure with Beam Joints in High-rise Building Construction

作　　者：赵凯选 李慧 ZHAO Kaixuan;LI Hui(Henan Water Construction Group Co.,Ltd,Zhengzhou 450000,China;Zhengzhou Technology and Business University,Zhengzhou 450000,China)

机构地区：[1]河南水建集团有限公司,河南郑州450000 [2]郑州工商学院,河南郑州450000

出　　处：《粉煤灰综合利用》2024年第2期111-116,共6页Fly Ash Comprehensive Utilization

摘　　要：为评估高层建筑施工中剪力墙结构连梁节点的受力性能,提出了一种基于有限元数值模拟的方法。试验结果表明:该方法能有效模拟连梁节点的实际受力状态,试件的承载能力与轴压比和暗支撑配筋率正相关,且随梁端位移增加,承载力退化系数先升后降,在配筋率为1%~2%时,试件稳定性表现优异,具备良好的变形能力和延性。To evaluate the stress performance of shear wall structure connecting beam nodes in high-rise building construction,this study proposes a numerical simulation based method.This method connects the shear wall panel to the edge components through fishtail welding technology,sets stiffeners at the center as the origin,and uses double-sided corner welding to fix them.Select a specific connecting beam as the specimen,and use quasi-static loading technology according to JGJ/T 101-2015 standard.Firstly,apply a vertical load of 300 kN,and then apply a horizontal load.Monitor the displacement and stress changes of the rod after being subjected to force using a dial gauge and strain gauge.The experimental results show that this method can effectively simulate the actual stress state of the connecting beam node.The bearing capacity of the specimen is positively correlated with the axial compression ratio and the reinforcement ratio of the hidden support.As the displacement of the beam end increases,the degradation coefficient of the bearing capacity first increases and then decreases.When the reinforcement ratio is 1%-2%,the stability of the specimen is excellent,with good deformation ability and ductility.

关 键 词：高层建筑施工 剪力墙结构 连梁节点 受力数值模拟 暗支撑配筋率 退化系数 

分 类 号：TU323[建筑科学—结构工程]