基于ABAQUS的预制空心桥墩与承台连接性能分析
|
摘要
文章在预制空心桥墩与承台新型连接方式现场加载试验的基础上,利用ABAQUS软件,建立了2种连接方式的有限元计算模型,模拟了2种连接方式在荷载作用下的破坏形态,通过计算获得了荷载-位移曲线,并与试验结果进行了对比分析。研究结果表明:所建立的有限元模型与试验吻合较好,预制空心桥墩在墩底和桥台连接部位最终的破坏形态均为弯曲破坏;采用梯形剪力齿连接方式的预制桥墩墩顶水平位移较小,受力性能更好。
Different finite element models of two connections were established by using ABAQUS based on the field loading tests on the new connection of precast hollow bridge pier and bearing platform.The failure patterns of these two kinds of connection modes under loading were simulated respectively.And the simulated load-displacement curves were compared with the experimental results.The results show that the finite element models correspond well with the experimental ones.The failure patterns of the two connections in the end are flexural failure.A smaller top horizontal displacement of precast pier can be obtained by using the connection with trapezoidal shear teeth,and the stress performance is better in this circumstance.
Different finite element models of two connections were established by using ABAQUS based on the field loading tests on the new connection of precast hollow bridge pier and bearing platform.The failure patterns of these two kinds of connection modes under loading were simulated respectively.And the simulated load-displacement curves were compared with the experimental results.The results show that the finite element models correspond well with the experimental ones.The failure patterns of the two connections in the end are flexural failure.A smaller top horizontal displacement of precast pier can be obtained by using the connection with trapezoidal shear teeth,and the stress performance is better in this circumstance.
引文
[1]倪娜.整浇装配式预应力桥墩抗震性能有限元分析[D].武汉:武汉理工大学,2013.
[2]樊健生,聂建国.钢-混凝土组合桥梁研究及应用新进展[J].建筑钢结构进展,2006,8(5):35-39.
[3]聂建国,陶慕轩,吴丽丽,等.钢-混凝土组合结构桥梁研究新进展[J].土木工程学报,2012,45(6):110-122.
[4]布占宇,占陈文,石鑫磊,等.节段拼装混凝土桥墩抗震性能研究[J].宁波大学学报(理工版),2011,24(2):83-88.
[5]臧华,刘钊.钢管混凝土桥墩的应用与研究[J].中国工程科学,2007,9(7):71-75.
[6]葛继平,王志强,李建中,等.装配式预应力混凝土双柱桥墩抗震性能研究进展[J].地震工程与工程振动,2013,33(3):192-198.
[7]中国钢铁工业协会.金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1—2010[S].北京:中国标准出版社,2011:14-18.
[8]张战廷,刘宇锋.ABAQUS中的混凝土塑性损伤模型[J].建筑结构,2011,41(增刊2):229-231.
[9]胡亮,钱德玲,刘杰,等.基于ABAQUS的RC框架节点的有限元分析[J].合肥工业大学学报(自然科学版),2012,35(5):657-661.
[10]过镇海.混凝土的强度和本构关系:原理与应用[M].北京:中国建筑工业出版社,2004:33-80.
[2]樊健生,聂建国.钢-混凝土组合桥梁研究及应用新进展[J].建筑钢结构进展,2006,8(5):35-39.
[3]聂建国,陶慕轩,吴丽丽,等.钢-混凝土组合结构桥梁研究新进展[J].土木工程学报,2012,45(6):110-122.
[4]布占宇,占陈文,石鑫磊,等.节段拼装混凝土桥墩抗震性能研究[J].宁波大学学报(理工版),2011,24(2):83-88.
[5]臧华,刘钊.钢管混凝土桥墩的应用与研究[J].中国工程科学,2007,9(7):71-75.
[6]葛继平,王志强,李建中,等.装配式预应力混凝土双柱桥墩抗震性能研究进展[J].地震工程与工程振动,2013,33(3):192-198.
[7]中国钢铁工业协会.金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1—2010[S].北京:中国标准出版社,2011:14-18.
[8]张战廷,刘宇锋.ABAQUS中的混凝土塑性损伤模型[J].建筑结构,2011,41(增刊2):229-231.
[9]胡亮,钱德玲,刘杰,等.基于ABAQUS的RC框架节点的有限元分析[J].合肥工业大学学报(自然科学版),2012,35(5):657-661.
[10]过镇海.混凝土的强度和本构关系:原理与应用[M].北京:中国建筑工业出版社,2004:33-80.