冷弯薄壁型钢加固土坯墙体抗震性能试验研究  

Experimental Study on Seismic Behavior of Adobe Wall Reinforced with Cold-Formed Thin-Walled Steel

作　　者：张俊峰[1] 高锦文 王欢[2] Zhang Jun-feng Gao Jin-wen;Wang Huan(School of Civil Engineering,Zhengzhou University,Zhengzhou 450001, China;School of Mechanical Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学土木工程学院,河南郑州450001 [2]郑州大学机械工程学院,河南郑州450001

出　　处：《工程抗震与加固改造》2018年第5期117-123,共7页Earthquake Resistant Engineering and Retrofitting

基　　金："十二五"国家科技支撑计划(2015BAL03B03-01)

摘　　要：为了改善传统承重土坯墙体的抗震性能,提出了采用冷弯薄壁型钢进行加固,通过1片传统承重土坯墙体和1片冷弯薄壁加固墙体的低周反复荷载作用下的拟静力试验,研究了土坯墙体加固前后的滞回性能、延性、承载能力、墙体裂缝开展规律、墙体破坏特征、刚度退化及耗能。试验结果表明:用冷弯薄壁型钢加固后的承重土坯墙体在承载力和延性上有很大的提高。In order to improve the aseismic behavior of traditional load-bearing adobe wall,a method of using cold-formed thin-walled steel to reinforce is proposed. Quasi-static tests are carried out for a traditional load-bearing adobe wall and a cold-formed thin-walled steel reinforced adobe wall. The hysteresis performance, ductility, bearing capacity, wall crack propagation law, wall failure characteristics,stiffness degradation and energy dissipation are studied. The Test results indicate that the bearing capacity and ductility of the cold-formed thin-walled steel reinforced load-bearing adobe wall are greatly improved.

关 键 词：土坯墙体 冷弯薄壁型钢 加固措施 滞回性能 抗震性能 

分 类 号：TU361[建筑科学—结构工程]