Experimental and numerical studies on post-facture behavior of simply supported composite twin I-girder bridges

Heang Lam; Weiwei Lin; Teruhiko Yoda

Experimental and numerical studies on post-facture behavior of simply supported composite twin I-girder bridges

Heang Lam^*, Weiwei Lin, Teruhiko Yoda

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This study is carried out to investigate the post-fracture behavior of the composite twin I-girder bridge systems. In the experimental program, one intact specimen and one damage specimen were tested under static load with displacement control method. Different cases of fractures are performed in numerical analyses based on finite element method and nonlinear analyses. Significant reduction of system stiffness and load carrying capacity is observed in post-fracture condition. The failure modes of both intact and damage specimen are governed by the crush of the concrete slab. Nevertheless, composite twin I-girder bridge system will not collapse under dead load and be able to carry a certain level of live load. Numerical analyses for different damage conditions proved that the fracture at mid-span section is the most fracture critical location for composite twin I-girder bridge system.

Original language	English
Title of host publication	IABSE Conference, Vancouver 2017
Subtitle of host publication	Engineering the Future - Report
Publisher	International Association for Bridge and Structural Engineering (IABSE)
Pages	206-213
Number of pages	8
ISBN (Electronic)	9783857481536
Publication status	Published - 2017 Jan 1
Event	39th IABSE Symposium in Vancouver 2017: Engineering the Future - Vancouver, Canada Duration: 2017 Sept 21 → 2017 Sept 23

Other

Other	39th IABSE Symposium in Vancouver 2017: Engineering the Future
Country/Territory	Canada
City	Vancouver
Period	17/9/21 → 17/9/23

Keywords

Composite twin I-girder bridge
Fracture critical location
Post-fracture behavior

ASJC Scopus subject areas

Building and Construction
Civil and Structural Engineering

Cite this

Experimental and numerical studies on post-facture behavior of simply supported composite twin I-girder bridges. / Lam, Heang; Lin, Weiwei; Yoda, Teruhiko.

IABSE Conference, Vancouver 2017: Engineering the Future - Report. International Association for Bridge and Structural Engineering (IABSE), 2017. p. 206-213.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lam, H, Lin, W & Yoda, T 2017, Experimental and numerical studies on post-facture behavior of simply supported composite twin I-girder bridges. in IABSE Conference, Vancouver 2017: Engineering the Future - Report. International Association for Bridge and Structural Engineering (IABSE), pp. 206-213, 39th IABSE Symposium in Vancouver 2017: Engineering the Future, Vancouver, Canada, 17/9/21.

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N2 - This study is carried out to investigate the post-fracture behavior of the composite twin I-girder bridge systems. In the experimental program, one intact specimen and one damage specimen were tested under static load with displacement control method. Different cases of fractures are performed in numerical analyses based on finite element method and nonlinear analyses. Significant reduction of system stiffness and load carrying capacity is observed in post-fracture condition. The failure modes of both intact and damage specimen are governed by the crush of the concrete slab. Nevertheless, composite twin I-girder bridge system will not collapse under dead load and be able to carry a certain level of live load. Numerical analyses for different damage conditions proved that the fracture at mid-span section is the most fracture critical location for composite twin I-girder bridge system.

AB - This study is carried out to investigate the post-fracture behavior of the composite twin I-girder bridge systems. In the experimental program, one intact specimen and one damage specimen were tested under static load with displacement control method. Different cases of fractures are performed in numerical analyses based on finite element method and nonlinear analyses. Significant reduction of system stiffness and load carrying capacity is observed in post-fracture condition. The failure modes of both intact and damage specimen are governed by the crush of the concrete slab. Nevertheless, composite twin I-girder bridge system will not collapse under dead load and be able to carry a certain level of live load. Numerical analyses for different damage conditions proved that the fracture at mid-span section is the most fracture critical location for composite twin I-girder bridge system.

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Experimental and numerical studies on post-facture behavior of simply supported composite twin I-girder bridges

Abstract

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Keywords

ASJC Scopus subject areas

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