Indoor stadium steel structure design and analysis

Pick to: this article mainly introduced the structure of the engineering design and type selection, design thinking, a typical node design, maintenance, system design and economical analysis, the indoor stadium is mainly for plane truss arch structure. Key words: plane truss arch; A typical node; Metal maintenance 1. The engineering general situation of the indoor stadium in one power plant is a smaller and contains a basketball court, badminton court, table tennis and fitness equipment such as a comprehensive sports venue, structure form for single-layer plane truss arch structure; A total construction area of 3090 m2, indoor construction area of 2530 m2, planar construction size is 57.7 m long, 52.9 m wide, 17.08 m high. This project is in limited geographical design structure has its own characteristics, its facade is decorated as shown in figure 1. This project is made up of steel column, steel truss and the column support, horizontal support between the steel frame suppo rting system, composed of main indoor play structures consists of h-beam steel column, steel pipe of plane truss, support and tie bar, metope times for cold-formed thin-walled C steel structure, roof structure with rectangular section; The in-situ composite insulation board in the maintenance structure, namely metal corrugated plate + glass wool insulation cotton + metal corrugated board. Steel weight of the project, the main structure of the total steel quantity is about 140.4 t, structure steel amount is about 42.9 t, 4 t steel weight of the foundation anchor bolts, structure steel weight of the total of 187.3 t, the average amount of steel (anchor) 60.6 Kg · m - 2; The project structure is compact, aesthetically pleasing, better economic benefit.
2. The selection of the structure and analysis
2.1 structure selection of the project location is factory old boiler house demolition after the remnant of a piece of place, surrounded by buildings or indoor playground structures, in order to make full use of existing space, its shape has been identified, as shown in figure 2. Building length of 57.7 m, width 52.9 m, therefore requires built in limited area meets the functional requirements and has modern features an indoor comprehensive sports venues. There are three kinds of the engineering design scheme, the original scheme is the pillars of the main structure of the concrete column, roof in the form of large span arch structure steel sheet; But after further check data [1] and research found that the structure is easy to instability, the present domestic several engineering in winter snow cave coping, the main reason is caused by a half across the snow load local buckling (half across easily lead to the unstability of the shell under snow load), so the programme was negative. In the back of the two design, main structure truss for the space form, the main difference in the internal form of truss structure; Second scheme using triangle truss arch, and the scheme, three plane truss arch.