摘要
针对木结构节点脆性破坏问题,提出新型胶合木梁柱节点的连接形式并进行试验研究。对2组不同连接形式的梁柱节点进行低周往复试验,获得弯矩-转角滞回曲线和弯矩-转角骨架曲线,对比分析采用不同连接形式胶合木梁柱节点的受弯承载力。试验结果表明:JD-2连接件刚度较大,主要破坏位置在胶合木梁上;JD-1刚度相对较小,但变形能力较强,能够承受0.12 rad以上的转角位移。节点连接方式对节点刚度有显著的影响,后期刚度曲线退化平缓,其节点具有一定的变形能力。
In order to solve the brittle failure problem of wood structure joints,a new type of connection of glulam beam and column joints was proposed and experimentally studied.Two groups of beam and column joints with different connection forms were subjected to low cycle reciprocating tests,and the Moment-Angle hysteresis curve and the Moment-Angle skeleton curve were obtained.The bending capacity of the beam and column joints with different connection forms was compared and analyzed.The test results show that the JD-2 connector has high stiffness and the main failure location is on the glulam beam.JD-1 has relatively small stiffness,but it has strong deformation ability and can withstand angular displacement above 0.12 rad.The connection mode of the node has a significant effect on the stiffness of the node.The stiffness curve of the node deteriorates gently in thelater stage, and the node has a certain deformationability.
作者
赵东
ZHAO Dong(China Railway 21st Bureau Group Second Engineering Co.LTD,Lanzhou,Gansu,730030,China)
出处
《建材技术与应用》
2025年第3期71-78,共8页
Research and Application of Building Materials
基金
国家重点研发计划(2019YFD1101004)
甘肃省建设厅科技攻关项目(JK2022-008)。
关键词
胶合木
梁-柱节点
低周往复
抗震性能
试验研究
glued timber
beam-column joint
low-cycle reciprocation
anti-seismic performance
experimental study
