Abstract:Research purposes: After the bridge is impacted by earthquake, the main girder will displace, and the girder falling, the earthquake disaster of the bridge pier and the damages of the supporting seat and abutment will happen, resulting in partially or fully losing the load bearing capacity of the bridge. The research was done on regaining the original load bearing capacity of the bridge by adopting the reinforcement technology for the purpose of providing the reference to the similar works.
Research conclusions: From the research on the reinforcement technology for treating the earthquake disaster of the Bridge 1# in Mianzhu of the Deyang-Aba Highway, it can be seen it is very important to do the following works well: (1) The shelling-out and high pressure grouting should be conducted to the crack. (2) The in-site reinforcement and replacement reinforcement should be conducted. (3) The original pier reinforcement and replacement reinforcement should be conducted to the damaged pier. (4) the reinforcement should be conducted to damaged stuck steel plate of the girder. (5) The replacement reinforcement should be conducted to the damaged bridge deck.
王丙堤. 桥梁震害加固技术研究[J]. 铁道工程学报, 2013, 30(1): 35-38.
WANG Bing-di. Research on Reinforcement Technology for Treating Earthquake Disaster of Bridge. 铁道工程学报, 2013, 30(1): 35-38.
[3] JTJ 004—2005, 公路工程抗震设计规范[S]. JTJ 004—2005, Highway Bridge and Culvert Maintenance Standard [S].
[4] 西南交通大学设计院. 德阿公路绵竹段1#桥震害处理设计施工图[Z]. 成都:西南交通大学设计院, 2008. Design Institute of Southwest Jiaotong University. De-a Highway Mianzhu Section 1 Bridge Damage Treatment Design and Construction Plans [Z]. Chengdu: Design Institute of Southwest Jiaotong University, 2008.
[5] 王茂,罗庆.汶川大地震中道路破坏及设计反思[J]. 铁道工程学报, 2009(2): 21-24. Wang Mao, Luo Qing. Thoughts on Design of the Damaged Road by Wenchuan Earthquake Zone [J]. Journal of Railway Engineering Society, 2009(2): 21-24.