山区高速公路装配式桥梁方案比选研究

Study on scheme selection of prefabricated bridge for mountainous freeway

山区高速公路具有地形条件复杂、平纵曲线较多、施工场地受限、运输条件差等特点。为了增强桥梁结构的耐久性、安全性及施工的可行性,优先采用预制装配式结构。通过对常见的预制结构进行综合比较,得出适用于山区高速公路装配式桥梁的结构形式。

The freeway in mountainous area is characterized by complicated terrain,many horizontal and vertical curves,limited construction site and poor transportation conditions.In order to enhance the durability,safety and construction feasibility of bridge structures,prefabricated structures are preferred.Through the comprehensive comparison of common prefabricated structures,the suitable structural type of prefabricated bridge for mountain expressway is obtained.