更换弦杆加固刚架拱桥技术研究与实践  

Rigid Frame Arch Bridge Replacement Chord Reinforcement Technology Research and Practice

作　　者：谌乐强 周崇阳 

机构地区：[1]江西中煤建设集团有限公司,江西南昌330001 [2]宜春市公路管理局,江西宜春336000

出　　处：《江西科学》2011年第5期626-629,共4页Jiangxi Science

摘　　要：以江西省宜春市老袁河大桥(刚架拱)加固提载工程为实例,依据大桥的病害及其成因,重点研究了拆除并更换部分弦杆加固的技术,以恢复刚架拱的强度与整体性。该桥还同时应用了在大、小节点、斜撑和主拱腿拱脚处外包钢筋混凝土、重建桥面铺装等加固与改造技术,可供出现类似病害的刚架拱桥维修加固参考和借鉴。In this paper,Yichun City,Jiangxi Province Lao Yuan Bridge（arch frame） set out reinforcement works to mention as an example,based on the bridge of the disease and its causes,focusing on the removal and replacement of part of the chord reinforcement techniques to restore the arch frame strength and integrity.The bridge has also applied in large and small nodes,leg braces and the main arch at the outsourcing of reinforced concrete arch,reconstruction and transformation of bridge deck and other reinforcement techniques,for similar diseases frame reference for arch repair and reinforcement.

关 键 词：桥梁工程 刚架拱 更换弦杆 有限元分析 加固提载 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]