Comparison of Studs and Perfo-Bond Strips on Mechanical Behavior of Composite Girders under Negative Bending  

作　　者：Weiwei Lin Teruhiko Yoda 

机构地区：[1]Department of Civil and Environmental Engineering, Waseda University, Tokyo 169-8555, Japan

出　　处：《Journal of Civil Engineering and Architecture》2013年第6期677-685,共9页土木工程与建筑（英文版）

摘　　要：The purpose of the present study is to investigate the influence of different types of shear connectors on mechanical behavior of composite steel and concrete girders under negative bending moment. Two overturned simply supported steel-concrete composite girders with different shear connectors including studs and PBLs （perfo-bond strips） were tested under point load in the mid-span. Based on the experimental observations, a three-dimensional FE （finite element） model capable of analyzing the composite girders subjected to negative bending moment was built. Load and deformation response, concrete initial cracking and composite girder ultimate load bearing capacity, strain development process of reinforcing bars before and after concrete cracking were observed in the test and compared with the numerical values. Results predicted by this modeling method are in good agreement with those obtained from the tests. Furthermore, the %rack closure＂ or ＂through crack＂ load were recorded by π-ganges in the tests and compared with the code-specified ultimate load.

关 键 词：Composite steel and concrete girder negative bending moment STUDS PBLs. 

分 类 号：TU398.901[建筑科学—结构工程] TG139.6[一般工业技术—材料科学与工程]