Research on key structural design problems of the Bao'an Stadium.

Throughout the whole design process of the Shenzhen Bao'an Stadium, this paper presents a research into the major difficulties encountered during different stages of design. In the phase of conceptual design, comparison was made among 3 schemes from perspectives including architectural appearance, functionality, structural behavior and construction difficulties, etc. In the phase of scheme verification, both theoretical analysis and a 1:10 scale model test were conducted in order to observe the static and dynamic performance of the structure. In the phase of detailed design, descriptions of several typical joints were presented and the basic principles for joint design of cable-membrane structures were summarized. The above research shows that for the Bao'an stadium, the spoke structure with circular inner and outer cable rings is the best choice. And A-shape column fits the spoke structure best, for its ability to provide sufficient lateral stiffness while making no constraint to the outer ring in radial direction. Research also shows, the 1st buckling mode of the outer ring is in the form of buckling with cable trusses as fulcrums. [ABSTRACT FROM AUTHOR]