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林区不同结构类型的桥梁,由于设计、施工、维修养护等诸原因,经过长期的车辆运行,存在着不同程度的破坏和损伤,承载能力及通过能力难以满足现行荷载和日益增长交通量的需要,迫切需要改建或加固补强。本文阐述了林区桥梁改建加固的实用价值和经济效果,并根据其特点介绍了几种可行方案。同时据丰林大桥静、动荷载试验及外观检查结果,提出了加固补强的具体方法。
Due to various factors such as design, construction, maintenance and maintenance, bridges of different types in the forest area may have different degrees of damage and damage after long-term vehicle operation, and the carrying capacity and passing capacity are difficult to meet the needs of the current load and the increasing traffic volume , There is an urgent need to rebuild or reinforce it. This paper expounds the practical value and economic effect of the bridge reconstruction and reinforcement in forest area, and introduces several feasible solutions according to its characteristics. At the same time, according to static and dynamic load test and appearance inspection results of Fenglin Bridge, specific methods of reinforcing and reinforcing are put forward.