带有支撑的钢筋混凝土梁柱节点受力性能
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摘要
利用ABAQUS有限元分析软件,对带有支撑的梁柱节点进行模拟计算,分析比较不同预埋件时梁柱节点应力分布与变形情况;对不同参数变化的节点组合体受力性能进行分析;同时,对节点是否带有支撑的计算结果进行对比,分析比较支撑对梁柱节点应力分布的影响.结果表明:预埋件构造方式的不同对梁柱节点应力分布、裂缝、变形影响比较显著,第四种方案较为合理;随着预埋件厚度和锚筋直径增加,支撑轴力均增大;通过在节点处设置支撑,有效地降低了节点的应力,使梁上产生了明显的塑性铰.
Using finite element analysis software ABAQUS,the beam-column joint with support was computed simulatively,the stress distribution and deformation of the beam-column joint were analyzed and compared in the case with different embedded parts,and the kinetic performance of joint combination with different parameters was analyzed.Meanwhile,the calculation results of beam-column joint with or without support were compared and the influence of the support on the stress distribution in the beam-column joint was analyzed and compared.The result showed that the influence of various constructional manner of the embedded parts on the stress distribution,cracks,and deformation of the beam-column joint was comparatively obvious,and the fourth option was more reasonable;as the thickness of the embedded parts and diameter of anchor rib increased,the axial forces in the support would increase.Beam-column joint with support would effectively decrease the stress in the joint,making a plastic hinge on the beam.
Using finite element analysis software ABAQUS,the beam-column joint with support was computed simulatively,the stress distribution and deformation of the beam-column joint were analyzed and compared in the case with different embedded parts,and the kinetic performance of joint combination with different parameters was analyzed.Meanwhile,the calculation results of beam-column joint with or without support were compared and the influence of the support on the stress distribution in the beam-column joint was analyzed and compared.The result showed that the influence of various constructional manner of the embedded parts on the stress distribution,cracks,and deformation of the beam-column joint was comparatively obvious,and the fourth option was more reasonable;as the thickness of the embedded parts and diameter of anchor rib increased,the axial forces in the support would increase.Beam-column joint with support would effectively decrease the stress in the joint,making a plastic hinge on the beam.
引文
[1]徐有邻,巩耀娜.汶川地震中教学楼倒塌调查分析:5.12汶川地震三周年祭[J].建筑结构学报,2011,5(32):9-16.
[2]TENG S,ZHOU H.Eccentric reinforced concrete bean-columnjoints subjected to cyclic loading[J].ACI Structural Journal,2003,100(2):139-148.
[3]傅剑平.钢筋混凝土框架节点抗震性能设计方法研究[D].重庆:重庆大学,2002.
[4]阎石,倪鹏,张曰果,等.高强钢筋高强混凝土框架梁柱节点非线性有限元分析[J].沈阳建筑大学学报,2009,25(1):80-84.
[5]刘春阳,李振宝,马华,等.钢筋混凝土框架空间节点抗震性能试验研究[J].工业建筑,2011,41(6):67-30.
[6]蒋欢军,王斌,吕西林.钢筋混凝土梁和柱性能界限状态及其变形限值[J].建筑结构,2010,40(1):10-14.
[7]郭兵,刘国鹏,徐超,等.偏心支撑半刚接钢框架的动力特性及抗震性能试验研究[J].建筑结构学报,2011,32(10):90-96.
[8]崔建宇,孙建刚,宋玉普,等.钢筋混凝土框架顶层节点抗震性能试验研究[J].建筑结构,2009,39(9):43-48.
[9]丘桂秀.钢筋混凝土结构梁柱节点性能分析[D].成都:西南交通大学,2008.
[10]王秀丽,夏培.L形加劲板方钢管混凝土柱-型钢梁节点性能研究[J].四川建筑科学研究,2008,34(6):26-29.
[2]TENG S,ZHOU H.Eccentric reinforced concrete bean-columnjoints subjected to cyclic loading[J].ACI Structural Journal,2003,100(2):139-148.
[3]傅剑平.钢筋混凝土框架节点抗震性能设计方法研究[D].重庆:重庆大学,2002.
[4]阎石,倪鹏,张曰果,等.高强钢筋高强混凝土框架梁柱节点非线性有限元分析[J].沈阳建筑大学学报,2009,25(1):80-84.
[5]刘春阳,李振宝,马华,等.钢筋混凝土框架空间节点抗震性能试验研究[J].工业建筑,2011,41(6):67-30.
[6]蒋欢军,王斌,吕西林.钢筋混凝土梁和柱性能界限状态及其变形限值[J].建筑结构,2010,40(1):10-14.
[7]郭兵,刘国鹏,徐超,等.偏心支撑半刚接钢框架的动力特性及抗震性能试验研究[J].建筑结构学报,2011,32(10):90-96.
[8]崔建宇,孙建刚,宋玉普,等.钢筋混凝土框架顶层节点抗震性能试验研究[J].建筑结构,2009,39(9):43-48.
[9]丘桂秀.钢筋混凝土结构梁柱节点性能分析[D].成都:西南交通大学,2008.
[10]王秀丽,夏培.L形加劲板方钢管混凝土柱-型钢梁节点性能研究[J].四川建筑科学研究,2008,34(6):26-29.
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