西南交通大学学报 2009, 44(2) 166-170 DOI:     ISSN: 0258-2724 CN: 51-1277/U

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本文关键词相关文章
组合结构
传剪器
PBL传剪器
极限承载力
推出试验
本文作者相关文章
夏嵩
赵灿晖
张育智
李乔
PubMed
Article by XIA Song
Article by ZHAO Canhui
Article by ZHANG Yuzhi
Article by LI Qiao

PBL传剪器极限承载力的试验研究

夏嵩, 赵灿晖, 张育智, 李乔

西南交通大学土木工程学院, 四川, 成都, 610031

摘要

为了考查PBL传剪器在拉-剪组合环境应力下的性能,设计了4组12个PBL传剪器试件,对其极限承载力和滑移量进行了试验研究.试验结果表明,PBL传剪器的极限承载力受孔中钢棒强度、混凝土轴心抗拉强度、钢板开孔直径、钢筋直径和环境应力类型等因素的影响.上述参数可以组合为无量纲外荷载与传剪器抗力,二者之间的关系可以用直线拟合,用于确定PBL传剪器的极限承载力.较之环境应力为拉应力,环境应力为压应力时,PBL传剪器的极限承载力绝对值大.

关键词 组合结构   传剪器   PBL传剪器   极限承载力   推出试验  

Experimental Investigation on Ultimate Load-Bearing Capacity of PBL Shear Connectors

XIA Song, ZHAO Canhui, ZHANG Yuzhi, LI Qiao

School of Civil Eng., Southwest Jiaotong University, Chengdu 610031, China

Abstract:

A test was carried out to investigate the characters of perfobond rib(PBL) shear connectors subjected to combined tension and shear background stresses.Twelve specimens of PBL shear connectors,sorted into 4 groups,were designed,and their ultimate load-bearing capacities and slipping behaviors were investigated experimentally.The experimental result shows that the ultimate load-bearing capacities of PBL shear connectors are influenced by the strength of steel,the tension strength of concrete,the diameter of holes in the steel slabs,the diameter of rebars and the type of background stress.The above-mentioned factors can be combined as the dimensionless load and dimensionless resistance of PBL shear connectors,and the relationship between the dimensionless load and the dimensionless resistance can be denoted by a linear equation.Such an equation can be fulfilled to determine the ultimate bearing capacity of PBL shear connectors.Furthermore,compared with a tension background stress,a compressive background stress can increase the load-bearing capacity of PBL shear connectors.

Keywords: composite structure   shear connector   perfobond rib shear connector   ultimate load-bearing capacity   push-out test  
收稿日期 2008-06-30 修回日期  网络版发布日期  
DOI:
基金项目:

西南交通大学青年教师科研起步项目资助(2007Q101).

通讯作者:
作者简介: 夏嵩(1974- ),男,副教授,博士,研究方向为现代桥式及桥梁结构设计理论,电话:028-86466899,E-mail:cinosanap@126.com

参考文献:
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