Innovative Steel-UHPC Composite Bridge Girders for Long-span Bridges
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Bibliographic Details
| Author(s): |
Xudong Shao
Lu Deng |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Bridges and Structures Sustainability - Seeking Intelligent Solutions, Guangzhou, China, 8-11 May 2016 | ||||
| Published in: | IABSE Conference, Guangzhou, China, 8 – 11 May 2016 | ||||
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| Page(s): | 614-622 | ||||
| Total no. of pages: | 9 | ||||
| Year: | 2016 | ||||
| DOI: | 10.2749/222137816819258997 | ||||
| Abstract: |
To improve the serviceability and durability of girders for long-span bridges, three new types of steel-UHPC lightweight composite bridge girders are proposed, where UHPC denotes ultra-high performance concrete. The first two types consist of an orthotropic steel deck (OSD) and a thin UHPC layer while the third type consists of a steel beam and a UHPC waffle deck. Due to excellent mechanical behaviors and impressive durability of UHPC, the steel-UHPC composite girders have the advantages of light weight, high strength, low creep coefficient, low risk of cracking, and excellent durability, making them competitive alternatives for long-span bridges. To date, the proposed steel-UHPC composite girders have been applied to four real bridges in China. It is expected that the application of the new steel-UHPC composite girders on long-span bridges will have a promising future. |
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| Keywords: |
orthotropic steel deck durability long-span bridge fatigue cracking Steel-UHPC Composite Bridge Girder
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