The Research And Exploration Of The Static Peculiarity And Dynamic Performance Of The Rrtractable Roof Structures

The retractable roof structure is a kind of structural form that a part of or all roofs can be moved and retracted in a short time. It makes the roof of the construction to be used under open and close conditions. The implementation of the retractable roof will divide a complete roof to some movable and fixed elements. The movable elements move on the fixed cells based on some specific tracks with the purpose of opening and closing the roofs. With the improvement of the society, returning to the nature will be an important development trend of stadiums and various of cultural constructions. And retractable roof structure is a product combined with the expectation of sunshine and sky, the developing theory and new technology. It is also a synthesis technology manifestation which includes construction, structure, engineering and controlling system. The retractable roof structure is an example in the civil engineering, which provides good foreground for more complex and larger retractable roof structure.The safety problem of retractable roof structure is the most important part and the starting and finishing point of researching retractable roof structure. How to combine the multi-disciplinary to satisfy the functions and the needs of safety needs further researching work. Nowadays, the researching of the retractable roof structure in our country is at starting stage. It has lots of merits containing pleasant appearance, new structure, reasonable force form, multifunction and multipurpose, and is a kind of structure form with great foreground. Combining with the nowadays situation, researching and developing simple, economical, reasonable and practical retractable roof structure is a must requirement.Based on the consulting materials of example in existing project, the paper has summarized the normal form of retractable roof structure and moving system to explain each kind of active system characteristic and feasible condition and elaborated design method with the moving part of the stadium in Nantong, Jiangsu in detail. This paper also calculates about the linear and nonlinear static analysis, auto oscillation characteristics and stable characteristics during the moving process, and analyzes the static peculiarity auto oscillation characteristics and stable characteristics about arch truss structure with nonlinear limited element theory, and judges the influence of the retractable roof to the base structure. This paper also introduces the construction process of the structure and the corresponding distortion controlling.