中文摘要：

依托芭蕉湾桥梁改造工程,对该桥病害及成因进行了分析,结合大交通流量的实际情况,通过对多种方案的甄选,提出了先整体现浇梁板,再进行整体水平移动更换病害空心板的快速改造技术,重点对行走系统进行了研究,并利用ABAQUS有限元对移动反力架进行了分析,结果表明结构安全可靠,最后对顶推行走速度进行了探讨。实践表明：整体顶推技术在小跨径桥梁改造中具有安全、快速的优势。

英文摘要：

Relying on renovation of Ba Jiao Wan bridge,analyzed the diseases and causes of the bridge,Combined with the situation of a large traffic flow,Through a variety of programs selection,Put forward a plan by casting plate and pushing it to replace disease hollow slab,Focus on overall travel systemstudy. Using ABAQUS FEM analyzedreaction frame,The results show that it is safe and reliable,Finally,discussed the speed of Pushing construction,Practice shows： Overall Pushing Construction has an advantage of Safe,quick in the renovation of small span bridges.