- ZHAO Yu
ZHAO Yu
Department of Bridge Engineering， Tongji University， Shanghai 200092, China；School of Highway, Chang’an University, Xi’an 710064，China
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Search for this author on this site - HE Shuanhai
HE Shuanhai
School of Highway, Chang’an University, Xi’an 710064，China
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Search for this author on this site - LI Chunfeng
LI Chunfeng
School of Highway, Chang’an University, Xi’an 710064，China
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Search for this author on this site - GE Yaojun
GE Yaojun
Department of Bridge Engineering， Tongji University， Shanghai 200092, China
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According to the over deformation and cracking of the prestressed concrete(PC) box girder bridge,vertical crack and oblique crack damage element were constituted based on primary appearance statistical cracks caused by force,two damage elements.Then the simulation calculation model of damaged PC bridges was put forward by reducing the rigidity and introducing planer rigid model.Finally,the rigidity reduction coefficient and capacity reduction coefficient were proposed to assess the structure capacity of existing damaged PC bridges.
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ZHAO Yu, HE Shuanhai, LI Chunfeng, GE Yaojun. Evaluating System of Bearing Capacity for Existing Cracked Prestressed Concrete Box Girder Based on Crack Feature[J].同济大学学报(自然科学版),2010,38(9):1271~1275
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History
- Received:May 25,2009
- Revised:May 27,2010
- Adopted:November 03,2009
- Online: September 17,2010
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