600 MPa级配筋暖砖墙体的抗震性能研究  

Research on seismic behavior of warm brick wall with grade 600 MPa rebars

作　　者：晁崇 祝英杰[1] CHAO Chong;ZHU Yingjie(School of Civil Engineering,Qingdao University of Technology,Qingdao 266033,China)

机构地区：[1]青岛理工大学土木工程学院,青岛266033

出　　处：《青岛理工大学学报》2021年第2期27-34,96,共9页Journal of Qingdao University of Technology

摘　　要：利用ANSYS有限元软件对3片配置HRB600级钢筋和1片HRB400级钢筋的暖砖墙体进行拟静力分析,从墙体的破坏特征、滞回曲线、承载能力、变形能力、刚度退化和耗能能力6个方面来评价墙体的抗震性能,讨论了配置HRB600级钢筋和HRB400级钢筋的2片墙体等强代换后的性能差异,考虑轴压比、剪跨比对配置高强钢筋的暖砖墙体抗震性能的影响.等强代换后墙体的承载能力基本不变但是延性降低;轴压比越高,墙体的承载能力和刚度越大,耗能能力越好;随着剪跨比增加,墙体的承载能力减小,刚度降低,高剪跨比的墙体有较多的耗能能力储备.Using the finite element analysis software ANSYS,this research carries out a quasi-static analysis of three warm brick wall models with grade HRB600 rebars and one with HRB400 rebars.The seismic performance of the walls is appraised from 6 aspects:damage characteristics,hysteretic curve,bearing capacity,deformation capacity,stiffness degradation and energy dissipation capacity.The seismic performance of the walls with HRB600 rebars and HRB400 rebars is discussed.The influence of axial compression ratio and shear-span ratio on seismic performance of warm brick walls with high-strength rebars is considered.It is shown that after equal strength replacement,the bearing capacity of the wall is basically unchanged but the deformation capacity is worse.The wall with higher axial compression ratio is better in bearing capacity,stiffness and energy dissipation capacity.The wall with higher shear-span ratio has lower bearing capacity and stiffness,but more reserve in energy dissipation capacity.

关 键 词：高强钢筋 暖砖墙体 承重复合墙 抗震性能 有限元分析 

分 类 号：TU375[建筑科学—结构工程]