钢板-约束拉杆加固剪力墙节点区域的轴压性能有限元分析  

Finite Element Analysis on Axial Loading Behavior of Shear Wall With the Core Area Strengthened by Steel Plate-Binding Bar

作　　者：方膨膨 FANG Pengpeng(Fujian Academy of Building Research Co.,Ltd.,Fuzhou 350108,China;Fujian Key Laboratory of Green Building Technology,Fuzhou 350108,China)

机构地区：[1]福建省建筑科学研究院有限责任公司,福建福州350108 [2]福建省绿色建筑技术重点实验室,福建福州350108

出　　处：《河南科技》2022年第20期30-33,共4页Henan Science and Technology

基　　金：院列课题“BIM技术在既有建筑检测鉴定及加固中的应用研究”(KYXY201900147)。

摘　　要：本研究采用有限元分析法来建立13个不同约束拉杆参数取值的钢板-约束拉杆加固剪力墙节点区域模型,并分析其轴压性能。研究结果表明:剪力墙的承载力和延性随着约束拉杆直径的增大而提高;所有带约束拉杆有限元模型的约束拉杆均达到屈服强度,约束拉杆能较好地发挥其对剪力墙的约束作用;剪力墙的承载力和延性随约束拉杆水平间距的减小而提高,且当约束拉杆直径较大时,减小约束拉杆的水平间距能显著提升剪力墙的轴压性能。In this study, the finite element analysis method was used to establish 13 steel plateconstrained tie rod reinforced shear wall joint area models with different constrained tie rod parameters,and their axial compression performance was analyzed. The results show that the bearing capacity and ductility of the shear wall increase with the increase of the diameter of the constraint rod. The constraint rods of all the finite element models with constraint rods reach the yield strength, and the constraint rods can better exert their constraint effect on the shear wall. The bearing capacity and ductility of the shear wall increase with the decrease of the horizontal spacing of the restraint rods, and when the diameter of the restraint rods is large, reducing the horizontal spacing of the restraint rods can significantly improve the axial compression performance of the shear wall.

关 键 词：约束拉杆 剪力墙 轴压性能 有限元分析 加固 

分 类 号：TU398.9[建筑科学—结构工程]