PBL剪力连接件抗剪承载力试验研究

杨勇; 陈阳

doi:10.6052/j.issn.1000-4750.2017.05.0365

PBL剪力连接件抗剪承载力试验研究

doi: 10.6052/j.issn.1000-4750.2017.05.0365

杨勇,
陈阳

西安建筑科技大学土木工程学院, 陕西, 西安 710055

基金项目: 国家自然科学基金项目（50708040，50978109）

详细信息

作者简介:
杨勇(1976-),男,江西人,教授,博士,博导,主要从事组合结构研究(E-mail:yyhhp2004@163.com).

通讯作者:
陈阳(1992-),女,陕西人,博士生,主要从事组合结构研究(E-mail:xauatchenyang@126.com).

中图分类号: TU398+.9
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- 被引次数: 0
出版历程
- 收稿日期: 2017-05-16
- 修回日期: 2017-09-16
- 刊出日期: 2018-09-29

EXPERIMENTAL STUDY ON THE SHEAR CAPACITY OF PBL SHEAR CONNECTORS

School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi 710055, China

摘要

摘要: 为建立组合桥梁中开孔钢板剪力连接件（PBL）剪力连接件的抗剪承载力计算公式，开展8个PBL连接件的单调加载推出试验。着重研究静载下不同承压方式、混凝土强度、开孔数量和贯穿钢筋直径对连接件抗剪承载力的影响。基于变形协调条件分析端部混凝土、孔内混凝土榫和贯穿钢筋对单孔连接件极限承载力的贡献；多孔连接件的抗剪承载力则在考虑应力重分布的基础上将单孔连接件承载力进行叠加。试验结果表明：提出的PBL连接件抗剪承载力计算模型物理意义明确，计算结果精度较高，可用于单排PBL剪力连接件的承载力计算。
- 组合桥梁 /
- PBL剪力连接件 /
- 推出试验 /
- 变形协调条件 /
- 抗剪承载力
Abstract: To establish the expression of shear capacity of PBL (Perfobond Leiste) connectors, monotonic loading push-out tests of eight PBL connectors were carried out. The influences of different bearing types, concrete strength, the number of hole(s) in the steel plate and the diameter of transverse rebar passing through the hole(s) on the shear capacity of PBL shear connectors in static loading were investigated emphatically. According to the deformation compatibility condition, the contribution of end concrete, concrete dowel and transverse rebar passing through the hole(s) to shear capacity of the shear connector with single hole were analyzed. The shear capacity of connectors with multiple holes were obtained by the superposition of the shear capacity of connectors with single hole on the basis of stress redistribution. Experimental results showed that the calculation model of the shear capacity had clear physical meaning and desired computational accuracy. The calculation model can be used to calculate the shear capacity of single row PBL shear connectors.
- composite bridge /
- PBL shear connectors /
- push-out test /
- deformation coordination condition /
- shear capacity

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参考文献(20)

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