[关键词]
[摘要]
目前,城市轨道交通车场停车库内立柱检查坑的立柱基本采用现浇混凝土结构形式,少数采用钢结构,立柱或者预制混凝土小立柱结构。常规立柱方案存在施工作业环节多、施工精度不易控制、施工进度缓慢、施工质量不易控制等问题,难以满足城市轨道交通施工工期、施工精度、美观性要求。本文系统调研了常规现浇混凝土立柱方案、钢立柱方案、预制混凝土小立柱方案在设计、施工精度控制、施工质量控制及工程造价等方面的优缺点,研发了一种预制H型板柱组合轨道结构方案。相较于常规方案,此方案有简化作业环节、降低劳动强度,提高施工精度、提升施工效率、增强其美观性等特点,最大程度实现了结构装配化,为解决库内立柱检查坑结构的相关问题提供了很好的借鉴和参考。
[Key word]
[Abstract]
At present, the columns of the column inspection pits in the parking garage of urban rail transit depots basically adopt the form of cast-in-place concrete structure,and a few adopt steel structure, column or precast concrete small column structure. Conventional column scheme has many construction operations, construction accuracy is not easy to control, construction progress is slow, and construction quality is difficult to control. It is difficult to meet the requirements of construction period, construction precision and aesthetics of urban rail transit. In this paper, the advantages and disadvantages of the conventional cast-in-place concrete column scheme, steel column scheme and precast concrete small column scheme in design, construction precision control, construction quality control and engineering cost were systematically investigated, and a precast H-shaped slab and column composite track structure scheme was developed. Compared with the conventional scheme, this scheme has the characteristics of simplifying operation links, reducing labor intensity, improving construction accuracy, improving construction efficiency and enhancing its aesthetics, etc., and realizes the structural assembly to the greatest extent, which provides a good reference and reference for solving the problems related to the inspection pit structure of the columns in the car depot parking garage.
[中图分类号]
U231.1
[基金项目]