格栅管式双钢板组合剪力墙的数值模拟分析  

Analysis on Numerical Simulation of Grid-Tube-Shaped Double Steel Plate Composite Shear Wall

作　　者：沙振方 陈凯[2] SHA Zhen-fang;CHEN Kai(Zhangjiagang Free Trade Zone Jingang Construction Engineering Quality Inspection Co.,Ltd.,Jiangsu Suzhou 215633,China;College of Civil Engineering,Southeast University,Jiangsu Nanjing 211189,China)

机构地区：[1]张家港保税区金港建设工程质量检测有限公司,江苏苏州215633 [2]东南大学土木工程学院,江苏南京211189

出　　处：《防灾减灾学报》2023年第1期62-68,共7页Journal of Disaster Prevention And Reduction

基　　金：江苏省自然科学基金项目资助(BK2012755)。

摘　　要：借鉴钢管混凝土柱的优点,提出一种新型的格栅管式双钢板混凝土组合剪力墙,采用试验研究和ABAQUS有限元分析相结合的手段,开展格栅管式双钢板混凝土组合剪力墙的力学特性分析。研究表明:格栅管式双钢板混凝土组合剪力墙的管内混凝土三向约束,管内混凝土的抗压强度和延性大幅度的提高,格栅管式双钢板组合剪力墙的破坏形态是端部槽钢撕裂破坏,而不是管内混凝土压碎破坏;内填混凝土承担全部的压应力,可避免外侧钢板受压曲屈,外侧钢板承担全部的拉应力,可避免腔体内填混凝土受拉开裂,多腔式双钢板墙和腔体内填混凝土协同工作,优势互补;格栅管式双钢板混凝土组合剪力墙具有承载力高、延性大和耗能能力强等优点,滞回曲线较为饱满,极限水平位移角高达1/36。In this paper,based on the advantages of CFST columns,a new type of grid-tube-shaped dou⁃ble steel plate concrete composite shear wall is proposed.By means of experimental research and ABAQUS finite element analysis,the mechanical characteristics of grid-tube-shaped double steel plate concrete composite shear wall is analyzed.The results show that the concrete in the tube is restrained in three direc⁃tions,and the compressive strength and ductility of the concrete in the tube are greatly improved.The fail⁃ure mode of the grid-tube-shaped double steel plate composite shear wall is the end U-steel tearing failure,not the crushing failure of the concrete in the tube;The inner concrete bears all the compressive stress,which can avoid the compression bending of the outer steel plate,and the outer steel plate bears all the ten⁃sile stress,which can avoid the tensile cracking of the concrete filled in the cavity;The grid-tube-shaped double steel plate concrete composite shear wall has the advantages of high bearing capacity,large ductility and strong energy dissipation capacity.Hysteresis curve is relatively full,and the ultimate horizontal dis⁃placement angle is as high as 1/36.

关 键 词：双钢板混凝土组合剪力墙 低周反复荷载试验 有限元分析 抗震性能 数值模拟 

分 类 号：TU398.2[建筑科学—结构工程]