预制装配整体式混凝土剪力墙结构墙板节点非线性有限元分析  

Nonlinear finite element analysis of wall slab joints of precast concrete shear wall structures

作　　者：陆铁坚[1] 王鹏皓 杨诗龙 宋宁[1] 

机构地区：[1]中南大学土木工程学院,湖南长沙410000

出　　处：《铁道科学与工程学报》2015年第2期342-347,共6页Journal of Railway Science and Engineering

摘　　要：节点之间如何连接、传力、协同工作是装配式钢筋混凝土结构所需研究的核心问题,具体来说就是节点之间的钢筋连接和混凝土界面的处理。在已有试验的基础上,采用ANSYS有限元分析软件中的弹簧单元模拟混凝土界面模型,对墙板节点进行非线性有限元分析,并与试验结果进行比较,结果符合较好,验证了有限元模型和计算参数的合理性。并对连接钢筋强度和锚固形式对节点受力性能的影响进行比较。研究结果表明:预制装配整体式剪力墙结构墙板节点具有良好的承载力,在节点连接可靠的情况下可以达到与现浇结构构件相当的抗震性能。How to connect, transfer force, work collaboratively between the joints is the key problem for the precast reinforced concrete structures. Specifically, it is mainly involved with the connection of the steel bar and the disposal of the concrete interface. Based on the existing experiments, the spring element in ANSYS software was utilized to simulate the interface model of concrete and conduct a nonlinear finite element analysis of wall slab joints. Compared with the experimental results, the simulated results show good agreement, which validates the rationality of the finite element model and the calculation parameters. The influence of strength and anchor forms of connecting steel bars on the mechanical behavior of joints was also investigated. The research results demonstrate that the wall slab joints of preeast shear wall structures possess a good bearing capacity, which can achieve a similar seismic performance with the cast - in - situ structure components for the case of reliable joints connection.

关 键 词：装配式剪力墙结构 墙板节点 界面模型 非线性有限元分析 抗震性能 

分 类 号：TU398.2[建筑科学—结构工程]