作　　者： ; ; ; ; ;

机构地区： 铁道第二勘察设计院

出　　处： 《铁道工程学报》 2007年第2期17-20,24,共5页

摘　　要： 研究目的:根据某火车站在改建工程中站台雨棚要求无柱化,提高通透性、舒适性的特点,对该站台雨棚的设计进行研究。研究方法:结合现场条件,采用单跨全覆盖的建筑形式。主体结构平面为41 m×400 m,两侧仅设置落地支撑28个,结构内部不设支撑柱,采用空间结构分析软件进行结构计算的研究方法。研究结果:通过铁路站台雨棚首次采用螺栓球网壳和落地立体管桁相结合的空间结构受力体系的实践,提出了成功的设计经验和有针对性的细部构造措施。研究结论:无站台柱雨棚采用正放四角锥双层柱面网壳与落地管桁结构的综合受力体系,不仅可以合理地发挥杆件效用,而且还可充分地展现建筑效果。对于体形较大的结构,温度效应的影响十分显著,在设计过程中采取相应的处理措施能有效地改善结构在温度作用下的受力性能;结构中的细部设计也应用了合理的分析计算方法,确保了结构的安全适用。 Research purposes： This paper researches the design of a roof truss without columns according to the requirement, such as astylar, clearer, more comfortable and so on in the rebuilding engineering of one railway station. Research methods： Combined with the situation of the construction plot, the major structure, whose plane size is 41 m× 400 m in the single -span complete coverage structure style, has no supporting column inside and only has 28 down -to -ground bracings at both sides. And space structure analysis software is adopted to do structure calculation. Research results： By the practice of a new spatial structure system of latticed shell with bolt spherical joints and down - to -ground pipe truss, this paper provides some successful design experiences and special detail construction measures. Research concinsions：The latticed shell with bolt spherical joints and down - to - ground pipe truss of the roof truss without columns can rationally embody the member efficiency and sufficiently display the architectonic effect. For structure in a massive figure, the influence of the temperature stress is remarkable. The structural stress performance under temperature stress can be significantly improved by the corresponding measures. The detail construction design was accomplished with the rational analysis methods, which ensures the structural safety and applicability.

关 键 词： 无站台柱雨棚 网壳 管桁架 结构设计 连接构造

领　　域： [建筑科学] [交通运输工程]