空间钢结构在高速公路收费站设计中的选型研究

Investigation of Structural Selection on a New Type of Steel Structure in Freeway Toll Station

由于高速公路收费站在城市建筑中的特殊地位及其对结构形式的特殊需求,大跨度钢结构越来越得到广泛的应用。文章讨论了几种收费站中经常采用的结构形式,并结合具体的工程实例,对平板网架结构和双层柱面网壳结构在高速公路收费站中的选型进行了较深入的研究。研究表明,在能够满足承载力和使用要求的情况下,应优先选用正放抽空四角锥网架;在结构跨度较大时,应优先选用正放四角锥柱面网壳。

Because of the special location and the large-span structure of the freeway toll station, the spacial steel structure is more widely used. This paper discussed some structural forms which are usually applied in freeway toll station, and according to practical projects, the structural selection of the flat grid frame structure and the column surface grid shell structure were investigated in freeway toll station. Based on research, it was concluded that at the premise of meeting capacity and use requirements a pyramid spacial grid structure should be adapted firstly, and at the case of larger span structure a cylindrical pyramid spacial grid should be adapted.