Behavior of post-installed shear connectors under static and fatigue loading

被引:202
作者
Kwon, Gunup [1 ]
Engelhardt, Michael D. [2 ]
Klingner, Richard E. [2 ]
机构
[1] Sargent & Lundy LLC, Chicago, IL 60603 USA
[2] Univ Texas Austin, Dept Civil Architectural & Environm Engn, Austin, TX 78712 USA
关键词
Anchor; Bridges; Partially composite; Post-installed shear connector; Retrofit;
D O I
10.1016/j.jcsr.2009.09.012
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper describes a series of tests investigating methods to develop composite action in existing non-composite floor systems. Three types of 22-mm diameter post-installed shear connectors were tested under static and fatigue loading. Test results are compared with previous research results on 19-mm diameter, post-installed shear connectors as well as with conventional welded shear studs. Based on the test results, preliminary design equations are proposed for the static and fatigue strength of post-installed shear connectors. These post-installed shear connectors showed a significantly higher fatigue strength than conventional welded shear studs. The superior fatigue strength of these post-installed shear connectors enables the strengthening of existing bridge girders using significantly fewer shear connectors than possible with conventional welded shear studs. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:532 / 541
页数:10
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