内嵌ALC墙板的铰接钢框架滞回性能试验  

Hysteretic Performance Test of Hinged Steel Frame with Embedded ALC Wallboard

作　　者：杨翼[1] 张东升[1] 陈潘 高飞[1] YANG Yi;ZHANG Dongsheng;CHEN Pan;GAO Fei(School of Civil and Hydraulic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]华中科技大学土木与水利工程学院,湖北武汉430074

出　　处：《土木工程与管理学报》2021年第5期118-124,共7页Journal of Civil Engineering and Management

基　　金：国家自然科学基金(51978308);湖北省自然科学基金(2020CFA047)。

摘　　要：为了研究循环荷载作用下蒸压轻质加气混凝土(ALC)墙板内嵌于钢框架的受力性能和破坏机理,进行了内嵌ALC墙板的铰接钢框架滞回性能试验研究。主要研究参数有墙板连接形式、是否开设门洞和门洞开设位置,据此设计了1榀U形卡连接的内嵌ALC墙板铰接钢框架和3榀管卡连接的内嵌ALC墙板铰接钢框架。主要考察了ALC墙板的加载试验现象和破坏模式,详细分析了构件的滞回曲线、骨架曲线、强度退化、刚度退化和耗能能力等滞回性能指标。试验结果表明,在循环荷载作用下,采用U形卡、管卡法连接的内嵌ALC墙板铰接钢框架具有很好的协同工作性能,管卡法连接的墙板滞回性能优于U形卡法连接;开设门洞会削弱墙板的耗能能力,但只要合理地布置洞口位置依然具有良好的安全保障。In order to study the mechanical behavior and failure mechanism of autoclaved lightweight aerated concrete(ALC)wallboard embedded in steel frames under cyclic loading,the hysteretic behavior of hinged steel frames embedded with ALC wallboards was studied.The main research parameters included the connection forms of wallboard,door opening and the positions of door opening.Thus,one hinged steel frame with embedded ALC wallboard connected by a U-shaped clamp and three connected by pipe strap was designed.The experimental phenomena and failure modes of ALC wallboard were investigated,and the hysteretic performance such as hysteretic curve,skeleton curve,strength degradation,stiffness degradation and energy dissipation capacity were analyzed in detail.The test results show that the steel frame with embedded ALC wallboard connected by U-shaped clamp and pipe strap has good cooperative performance under cyclic loading,and the hysteretic performance of the wallboard with pipe strap connection is better than that with U-shaped clamp connection;opening doors will weaken the energy dissipation capacity of the wallboard.However,as long as the reasonable layout of the door opening position,it still has good security.

关 键 词：内嵌ALC墙板 铰接钢框架 滞回性能 试验研究 

分 类 号：TU398.9[建筑科学—结构工程]