Experimental study on transverse stress of different forms of concrete bridge deck
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Bibliographic Details
| Author(s): |
Xieli Zhang
(Department of Bridge Engineering, Tongji University, Shanghai, China)
Chong Wu (Department of Bridge Engineering, Tongji University, Shanghai, China) Qingtian Su (Department of Bridge Engineering, Tongji University, Shanghai, China) Xiaomao Feng (Jiangxi Provincial Expressway Investment Group Co. Ltd, Nanchang, China) Xiaoyong Zhou (Jiangxi Provincial Expressway Investment Group Co. Ltd, Nanchang, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021 | ||||
| Published in: | IABSE Congress Christchurch 2020 | ||||
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| Page(s): | 559-566 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/christchurch.2021.0559 | ||||
| Abstract: |
Steel plate composite bridge is one of the most widely used form of bridges. With the application of pre- stressed concrete, the improvement of thick steel plate quality and welding technology, steel plate composite bridge with less main girder has been widely used in engineering. To compare the mechanical properties of twin-girder and multi-girder steel plate bridge, two full-scale concrete bridge deck specimens are manufactured and tested. The stress and deformation of the structural members of the two specimens are tested, the development of concrete cracks is recorded in detail, and the ultimate bearing capacity and failure form are obtained. The test results show that the concrete slab in the form of twin-girder with post- tension will not crack under the normal vehicle load, while multi-girder one will crack, and the maximum crack width is 0.02 mm. The ultimate bearing capacity of twin-girder is 622 kN and the multi-girder is 850 kN. The failure mode of twin-girder is tension failure, and multi-girder is compression failure. |
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| Keywords: |
composite bridge crack multi-girder twin-girder ultimate bearing capacity
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