基于ABAQUS的开孔板连接件抗剪承载力分析  

Analysis of Shear-capacity of Perfobond Shear Connectors Based on ABAQUS Software

作　　者：曹学亮[1] 李法雄[2] 雷俊卿[1] 刘钱 刘大成 

机构地区：[1]北京交通大学土木与建筑工程学院,北京100044 [2]交通运输部公路科学研究院,北京100088 [3]温州瓯江通道建设有限公司,浙江温州325000 [4]中交第一公路工程局有限公司,北京100024

出　　处：《公路交通科技》2013年第11期89-95,共7页Journal of Highway and Transportation Research and Development

基　　金：浙江省交通运输厅科技计划项目(2012H24)

摘　　要：为深入研究开孔板连接件的抗剪传力机理,基于ABAQUS平台建立了开孔板连接件的精细有限元模型,详细介绍了开孔板连接件的建模方法和材料本构关系。首先通过与典型开孔板连接件抗剪试验结果对比,验证了数值仿真方法的可靠性。其次对混凝土榫和贯通钢筋的应力特性进行了分析。最后深入探讨了开孔板连接件抗剪承载力的主要影响因素。结果表明,提高混凝土强度等级、增大混凝土榫直径可提高开孔板连接件的抗剪承载力;孔内贯通钢筋对抗剪刚度影响小,但可有效提高开孔板连接件的抗剪承载力和延性。To study the shear transfer mechanism of perfobond shear connectors, the fine finite element model of perfobond shear connectors is established based on the platform of ABAQUS, and the modeling method and material constitution of perfobond shear connectors are introduced in detail. First, by comparing with the test result of typical perfobond shear connector, the reliability of the numerical simulation method is verified. Then, the stress characteristics of concrete tenons and through reinforcements are analyzed. Finally, the main influencing factors on shear bearing capacity of the perfobond shear connectors are discussed. The result shows that （1） increasing the strength of concrete and the diameter of concrete tenons could capacities of perfobond shear connectors; （2） the through reinforcements make nearly but they can effectively improve the shear bearing capacity and ductility of perfobond enhance the shear bearing no effect on shear stiffness, shear connectors.

关 键 词：桥梁工程 抗剪承载力 有限元分析 开孔板连接件 

分 类 号：U443.37[建筑科学—桥梁与隧道工程]