Damage Assessment and Repair Design and Implementation for Underpass Bridge Based on Fire Effects
Fire effects cause one span of a frame underpass bridge in Harbin large area of different levels burning.Among them, some parts burned seriously; many adjacent beams turn black at bottom of roofs; parts of railings burned out of shape; parts decoration of side wall fractured, which blocked traffic towards Harbin.In order to make safety, repair on time, recovery traffic as soon as possible, satisfy the rules of original design and save money, this paper uses high strength non-shrinkage grouting material to repair stiffness of crack and damage concrete and carbon fiber to improve structure carrying capacity.Also, it uses middle support technique to reinforce the underpass bridge when repairing.Through a comparative analysis before and after reinforcement, paper confirms the feasibility and reliability of this repair design.
Fire Underpass bridge Reinforced concrete frame Damage assessment Reparation Strengthened by carbon fiber sheet
Zhong Long Li Hong Lin Wu Zhen Yu Liu De Jian Xu Xiao Di Zhu Hong Jiang Gu
School of Transportation Science and Engineering,Harbin Institute of Technology,Key Laboratory of tr School of Transportation Science and Engineering,Harbin Institute of Technology,Key Laboratory of tr The Communications Research Institute of Liaoning Province,Shenyang,110015,China
国际会议
上海
英文
1674-1678
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）