沙贝立交扩建工程F匝道桥方案比选和工程管理

Scheme comparison and project management of F-ramp bridge in the expansion project of shabei interchange

以广州北环高速沙贝立交扩建工程F匝道桥的桥型方案比选为例,介绍该扩建桥型方案比选过程和工程管理要点,依据项目控制因素和特点确定桥梁方案比选原则及可供比选的桥型方案,结合建设条件,对超高性能混凝土桥梁、预应力混凝土空心板、钢箱梁三种桥型方案在主梁建筑高度、路线纵断面、结构受力、结构耐久性、施工难易程度、工程造价等经济技术方面进行综合比较,优选出最佳桥型方案,同时结合实际工程特点,提出控制工程质量的有效措施,确保桥梁安全可靠。

Taking the bridge type scheme comparison and selection of F ramp bridge in the expansion project of Shabei interchange of Guangzhou North Ring Expressway as an example,this paper introduces the comparison and selection process and project management points of the expansion bridge type scheme,deter mines the comparison and selection principle of the bridge scheme and the available bridge type scheme according to the project control factors and characteristics,and combines with the construction conditions,for three types of bridge,namely ultra-high performance concrete bridge,prestressed concrete hollow slab and steel box girder The scheme comprehensively compares the main beam building height,route profile,structural stress,structural durability,construction difficulty,project cost and other economic and technical aspects,selects the best bridge type scheme,and proposes effective measures to control the project quality in combination with the actual project characteristics,so as to ensure the safety and reliability of the bridge.