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 for-ward a plan by casting plate and pushing it to replace disease hollow slab,Focus on overall travel systems-tudy.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 advan-tage of Safe,quick in the renovation of small span bridges.%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。
展开▼
