反复荷载下装配整体式梁板节点延性分析
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摘要
为研究装配整体式梁板节点的延性性能,分别对2个预制梁板节点和2个现浇梁板节点进行竖向低周反复荷载试验,观察节点的破坏过程和破坏形态,对比分析节点的延性性能、刚度退化规律.试验结果表明:预制梁板节点和现浇梁板节点的破坏形态均为弯曲破坏,两类节点延性系数基本相同并且都大于3,说明各节点延性性能均较好;按照等强度设计的装配整体式梁板节点满足受力要求,表现出良好的延性性能;利用ABAQUS有限元分析软件建立模型对试件进行模拟分析,有限元模拟结果与试验结果接近,验证了试验方法和有限元模型的有效性.
In order to study the ductility of the assembled integral beam plate joints, the low cycle cyclic loading tests were carried out respectively on two prefabricated beam plate joints and two cast-inplace beam plate joints.The failure process and failure pattern of the joints were observed. The ductility and stiffness degradation of joints were compared and analyzed. The experimental results show that the failure pattern of the beam plate joints and the cast-in-place beam plate joints is the bending failure, the ductility coefficient of the two types of joints is basically the same and is greater than 3, which indicates that the ductility performance of each joints is good. The prefabricated assembled beam-plate joints designed according to equal strength meet well with the requirement of stress and show good ductility.The model was simulated by ABAQUS finite element analysis software. The finite element simulation results were close to the experimental data, which verified the validity of the experimental method and the finite element model.
In order to study the ductility of the assembled integral beam plate joints, the low cycle cyclic loading tests were carried out respectively on two prefabricated beam plate joints and two cast-inplace beam plate joints.The failure process and failure pattern of the joints were observed. The ductility and stiffness degradation of joints were compared and analyzed. The experimental results show that the failure pattern of the beam plate joints and the cast-in-place beam plate joints is the bending failure, the ductility coefficient of the two types of joints is basically the same and is greater than 3, which indicates that the ductility performance of each joints is good. The prefabricated assembled beam-plate joints designed according to equal strength meet well with the requirement of stress and show good ductility.The model was simulated by ABAQUS finite element analysis software. The finite element simulation results were close to the experimental data, which verified the validity of the experimental method and the finite element model.
引文
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[11]罗青儿,王蕴,翁煜辉,等.装配整体式钢筋混凝土框架梁柱节点的试验研究[J].工业建筑,2009,39(2):80-83.
[12]吕西林.复杂高层建筑结构抗震理论与应用[M].北京:科学出版社,2007.
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[14]张敏,李晓康.三向地震作用下传统框架与楼板局部设缝框架动力弹塑性分析[J].广西科技大学学报,2016,27(3):8-16.
[2]闫维明,王文明,陈适才,等.装配式预制混凝土梁-柱-叠合板边节点抗震性能试验研究[J].土木工程学报,2010,43(12):56-61.
[3]王东辉,柳旭东,陈勇.装配整体式混凝土结构的发展[J].混凝土,2012(1):113-115.
[4]彭媛媛.预制钢筋混凝土剪力墙抗震性能试验研究[D].北京:清华大学,2010.
[5]朱文正,张季超,陈原,等.新型装配整体式混凝土梁板节点试验研究[J].施工技术,2015,44(3):49-52,92.
[6]许勇,刘波,张季超,等.新型装配整体式混凝土结构主次梁节点试验研究[J].工业建筑,2009,39(8):114-117.
[7]中国建筑科学研究院.混凝土结构设计规范:GB 50010-2010[S].北京:中国建筑工业出版社,2010.
[8]李忠献,张雪松,丁阳.装配整体式型钢混凝土框架节点抗震性能研究[J].建筑结构学报,2005(4):32-38.
[9]李向民,高润东,许清风.预制装配式混凝土框架高效延性节点试验研究[J].中南大学学报(自然科学版),2013,44(8):3453-3463.
[10]赵斌,吕西林,刘丽珍.全装配式预制混凝土结构梁柱组合件抗震性能试验研究[J].地震工程与工程振动,2005,25(1):81-87.
[11]罗青儿,王蕴,翁煜辉,等.装配整体式钢筋混凝土框架梁柱节点的试验研究[J].工业建筑,2009,39(2):80-83.
[12]吕西林.复杂高层建筑结构抗震理论与应用[M].北京:科学出版社,2007.
[13]胡强,陈劲飙.带钢桁架连梁的剪力墙结构抗震性能有限元分析[J].广西科技大学学报,2017,28(4):37-41.
[14]张敏,李晓康.三向地震作用下传统框架与楼板局部设缝框架动力弹塑性分析[J].广西科技大学学报,2016,27(3):8-16.