带开孔钢板剪力连接件的钢-混凝土组合桥面板受力性能试验研究

发布时间：2018-04-17 05:34

本文选题：钢-混凝土组合桥面板 + 开孔钢板剪力连接件　；参考：《建筑结构学报》2015年S1期

【摘要】：为研究带开孔钢板剪力连接件的钢-混凝土组合桥面板的受力性能,以开孔钢板剪力连接件的布置形式、组合板的厚度、贯穿钢筋数量等为参数,设计制作了14块钢-混凝土组合板,对其进行正、负弯矩作用下的两点对称集中静力加载试验。分析了组合桥面板的破坏形态和变形能力、钢板与混凝土的应变发展情况、相对滑移量和受弯承载力。试验结果表明:大部分组合板发生弯曲破坏,少量组合板为竖向剪切破坏或纵向剪切破坏;组合桥面板具有较高的承载能力和抗弯刚度,并具有良好的延性。采用简化塑性理论对钢-混凝土组合桥面板进行了受弯承载力分析,得到了正、负弯矩作用下的受弯承载力的实用计算式,并与试验结果对比,二者吻合良好。
[Abstract]:In order to study the mechanical behavior of steel-concrete composite bridge deck with perforated steel plate shear connections, the layout of steel plate shear connections, the thickness of composite plates and the number of steel bars are taken as parameters.Fourteen steel-concrete composite slabs were designed and fabricated, and two point symmetrical concentrated static loading tests were carried out on them under positive and negative bending moment.The failure form and deformation capacity of composite deck slab, strain development of steel plate and concrete, relative slip and flexural capacity are analyzed.The experimental results show that most composite plates have bending failure, a few composite plates have vertical shear failure or longitudinal shear failure, and composite bridge deck plates have high bearing capacity, flexural stiffness and good ductility.The flexural bearing capacity of steel-concrete composite deck slab is analyzed by using simplified plastic theory. The practical calculation formula of flexural bearing capacity under positive and negative bending moment is obtained, and the results are in good agreement with the experimental results.
【作者单位】：华北水利水电大学土木与交通学院;西南交通大学土木工程学院;四川省交通运输厅公路规划勘察设计研究院;
【基金】：河南省教育厅科学技术研究重点项目(15A560030) 华北水利水电大学高层次人才科研启动项目(2014018)
【分类号】：TU398.9

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