Strengthening bridges by developing composite action in existing non-composite bridge girders

被引：14

作者：

Kwon, Gunup ^{[1
]}

Engelhardt, Michael D. ^{[2
]}

Klingner, Richard E. ^{[2
]}

机构：

[1] Sargent and Lundy LLC, Chicago, IL

[2] Dept. of Civil, Architectural and Environmental Engineering, University of Texas at Austin

来源：

Structural Engineering International: Journal of the International Association for Bridge and Structural Engineering (IABSE) | 2009年 / 19卷 / 04期

关键词：

Anchor; Bridges; Partially composite; Post-installed shear connector; Retrofit;

D O I：

10.2749/101686609789847109

中图分类号：

学科分类号：

摘要：

A number of older bridges are constructed with floor systems consisting of a non-composite concrete slab over steel girders. A potentially economical means of strengthening these floor systems is to connect the existing concrete slab and steel girders to permit the development of composite action. This paper presents the results of a study examining methods for doing this using post-installed shear connectors in bridge girders. A series of tests on individual post-installed shear connectors and full-scale beams retrofitted with the post-installed shear connectors were conducted to evaluate structural behavior and develop design recommendations. Results of the research were subsequently implemented in a bridge near Hondo, Texas. This paper provides an overview of this research project and results of laboratory tests and field implementation.

引用

页码：432 / 437

页数：5

共 7 条

[1]

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[2]

Hungerford B.E., Methods to Develop Composite Action in Non-Composite Bridge Floor Systems: Part II, (2004)

[3]

Kayir H., Methods to Develop Composite Action in Non-Composite Bridge Floor Systems: Fatigue Behavior of Post-Installed Shear Connectors, (2006)

[4]

Kwon G., Strengthening Existing Steel Bridge Girders by the Use of Post-Installed Shear Connectors, (2008)

[5]

LRFD Bridge Design Specifications, (2007)

[6]

Oehlers D.J., Sved G., Composite beams with limited-slip-capacity shear connectors, J. Struct. Eng., ASCE, 121, 6, pp. 932-938, (1995)

[7]

Manual for Condition Evaluation of Bridges, (2003)

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