预制钢筋混凝土梁-钢管混凝土柱装配节点抗震性能有限元参数分析  

Finite Element Parameter Analysis of Seismic Performance of Precast Reinforced Concrete Beam-Concrete-filled Steel Tubular Column Assembly Joints

作　　者：解咏平 孙刚 杨晓红 张丽 XIE Yong-ping;SUN Gang;YANG Xiao-hong;ZHANG LI(Hebei GEO University,050031,Shijiazhuang,Hebei,China;Hebei University of Water Resources and Electric Engineering,061001,Cangzhou,Hebei,China;Six Geological team of Hubei Geological Bureau,432000,Xiaogan,Hubei,China;Hebei Communication Construction CO.,LTD.,050021,Shijiazhuang,Hebei,China)

机构地区：[1]河北地质大学城市地质与工程学院,河北省石家庄市050031 [2]河北水利电力学院基础部,河北省沧州市061001 [3]湖北省地质局第六地质大队,湖北省孝感市432000 [4]河北省通信建设有限公司,石家庄市050031

出　　处：《河北水利电力学院学报》2022年第3期44-51,69,共9页Journal of Hebei University Of Water Resources And Electric Engineering

基　　金：河北省自然科学基金(E2021403007);河北省教育厅高等学校自然科学研究重点项目基金(ZD2019026)。

摘　　要：为进一步研究新型预制钢筋混凝土梁—钢管混凝土柱装配节点抗震性能,对其进行有限元模拟,分析混凝土强度、钢管强度、纵筋配置和箍筋配置等参数的影响,结果表明该节点的抗震性能良好,而且,随混凝土强度的增加,节点的承载能力、延性、耗能能力有所增加,但增加幅度小于3%;提高梁纵筋配筋率,承载能力、延性和耗能能力均有所提高,刚度退化减慢;钢管强度等级Q420以上对抗震性能影响明显;箍筋直径越大,耗能和试件延性减弱。In order to study the seismic performance of the new precast reinforced concrete beam-concrete-filled steel tubular column assembly joints,finite element simulation was carried out on the above joints,and the influence of the concrete strength grade,different steel pipe strength,different reinforcement ratio and stirrup reinforcement ratio on the joints was further analyzed.The results show that the joint has good seismic performance.With the increase of concrete strength grade,the bearing capacity,ductility and energy consumption capacity of the joint increase,and the increase range is less than 3%.Considering the cost performance,it is suggested to adopt C30 concrete strength of the joint.With the increase of longitudinal reinforcement ratio,the bearing capacity,ductility and energy dissipation capacity of the joints are improved,but the stiffness degradation is slowed down.The effect of steel pipe strength grade above Q420 on seismic performance is obvious.As the stirrup diameter increases,the joint energy consumption and specimen ductility weaken.Therefore,it is recommended that the diameter of stirrup be 8mm.

关 键 词：圆钢管柱 装配梁 U形钢板-栓钉 有限元分析 抗震性能 

分 类 号：TU398.9[建筑科学—结构工程]