摘要
为了研究基于新型连接方式下内嵌墙板与钢框架结构的地震协同工作性能和破坏机理,对新型连接方式内嵌墙板钢框架、传统L形卡件连接内嵌墙板钢框架及纯钢框架等3种工况进行了拟静力试验,对比分析了3个试件的破坏模式、滞回曲线、骨架曲线和刚度退化曲线等抗震性能指标。结果表明:内嵌墙板能够提高钢框架的极限承载力、变形能力和刚度,传统L形卡件连接墙板钢框架的抗震承载力是纯框架抗震承载力的1.34倍,新型连接方式墙板钢框架的抗震承载力是传统节点框架抗震承载力的1.42倍。当加载位移为12 mm(层间位移角为1/133)时,采用传统连接的试件中间墙板破坏较为严重且已达到混凝土极限应变,而采用新型连接的试件中间墙板未发现明显损伤,仍处于工作状态。新型连接通过连接节点处的连接件滑动耗能,延缓墙板开裂时间,减轻墙板损伤,增加了内嵌墙板钢框架大震下的耗能储备。
In order to study the seismic cooperative performance and failure mechanism of the infilled wallboard and steel frame structure based on the new connection method,quasi-static tests were carried out under three working conditions,including the new connection method infilled wallboard steel frame specimen,the traditional L-shaped clamp connection infilled wallboard steel frame and the wallboard free steel frame.The differences of the seismic performance indicators,such as failure mode,hysteresis curve,skeleton curve and stiffness degradation curve,were compared among the three specimens.The results show that the infilled wallboard can improve the ultimate bearing capacity and energy dissipation capacity of the steel frame.The seismic bearing capacity of the traditional L-shaped fastener connected wallboard steel frame is 1.34 times of that of the pure frame,and the seismic bearing capacity of the new connection method wallboard steel frame is 1.42 times of that of the traditionally connected frame.When the loading displacement reaches 12 mm(the inter-story drift is 1/133),the middle wallboard of the specimen with traditional connection is seriously damaged and has reached the concrete limit strain,while the middle wallboard of the specimen with new connection is still in working state without obvious damage.The new connection dissipates energy through the slipping of the connectors at the connection nodes,which can delay the cracking of the wallboard,reduce the damage degree of the wallboard and improve the energy dissipation reserve of the infilled wallboard steel frame under large earthquakes.
作者
马恒
袁康
郭军林
张钢
张超
MA Heng;YUAN Kang;GUO Junlin;ZHANG Gang;ZHANG Chao(College of Water Conservancy&Architectural Engineering,Shihezi University,Shihezi 832003,China;Xinjiang Production and Construction Grops Engineering Laboratory for Seismic and Energy-Saving Building in High Earthquake Intensity and Cold Zone,Shihezi University,Shihezi 832003,China;Xinjiang Production and Construction Grops Building Materials Co.,Ltd.,Urumqi 831499,China)
出处
《建筑钢结构进展》
CSCD
北大核心
2024年第3期21-29,共9页
Progress in Steel Building Structures
基金
兵团重大科技项目(2016AA006-2)
石河子大学成果转化与技术推广计划项目(CGZH202201)。
关键词
新型连接方式
内嵌墙板
钢框架结构
拟静力试验
抗震性能
new connection method
infilled wallboard
steel frame structure
quasi-static test
seismic performance
