防灾减灾工程学报2011，Vol.31Issue(5)：517-522,6.
PBL剪力键破坏形态及极限承载力试验研究
Experimental Investigation on Ultimate Bearing Capacity of Perfobond Rib Shear Connectors and Their Failure Modes
摘要
Abstract
Three kinds of failure modes for perfobond rib shear connectors with perforated rebar are summarized from previous tests, and it is found that the shear failure of perforated rebar gives full play to the ultimate bearing capacity. In order to study the influencing factors of the ultimate bearing capacity of connectors, 21 specimens of perfobond rib shear connectors, sorted into 4 groups, are tested in the fracture test, and the test results in reference [10] are also referred. A calculation formula of ultimate bearing capacity for perfobond rib shear connectors is established. The results show that the size and strength of perforated rebar significantly influence the ultimate bearing capacity of perfobond rib shear connectors with perforated rebar, which is unrelated to the size and strength of concrete rebar. The ultimate bearing capacity is also related to the size and strength of transversal rebar, which is less significant than that shown in these existing formulas.关键词
PBL剪力键/推出试验/极限承载力/破坏形态/组合结构桥梁Key words
perfobond rib shear connector/ push-out test/ ultimate bearing capacity/ failure mode/ composite bridge分类
建筑与水利引用本文复制引用
王振海,李乔,赵灿晖..PBL剪力键破坏形态及极限承载力试验研究[J].防灾减灾工程学报,2011,31(5):517-522,6.基金项目
中央高校科研业务费科技创新项目(A092050205) （A092050205）
