| Being as a crucial bearing member of the large-span space structures, trussed arch structure is widely used in the field of large-span sports architecture thanks to its clear bearing conditions and the flexibility tailored to a wide variety of architecture image. Numerous sports complex, such as Sydney Stadium for 2000 Olympic games and Korean Taegu Stadium for 2002 Korean-Japan World Cup, etc. are the successful engineering examples for such kind of space structures. The structure not only featured with large-span space structure, but also is unique regarding its architecture aesthetics, representing the untold grandness in special architecture language. Although the trussed arch structure has been widely adopted in various engineering projects, its theoretical research is relatively lagging behind the engineering practices.Based on the roofing structure system adopted in Wuhu Gymnasium Project, geometrical nonlinear theory is adopted concerning the analysis of the static force performance and deflection at ultimate point for the trussed arch structure in this dissertation. Large-sized finite element software ANSYS5.7 is adopted for the analysis. LINK8 to be adopted for the rod unit. BEAM188 to be utilized for beam unit. LINK10 to be adopted for the cable unit. Combined with the engineering practices, detailed research has been made regarding the structural performance and stability of hinged connected trussed arch at two ends of circular arc shape. Discussion on different truss styles and its relevant advantages and disadvantages have also been made in the article. Detailed analysis on the principal influencing elements of the trussed arch has also been included, e.g. truss height, truss grid number, initial defection, member connection methods influence over structural performance and stability, etc. Analysis concerning various load styles influencing over the deflection performance of trussed arch structure have also been covered, including concentration load in the mid of span, uniformly distributed load for the whole span and uniformly distributed load for half span, etc. Section mode influences of the trussed arch over the deflection performance inside the plane and outside the plane have also been analyzed as well as its similarity and differences. High-strength tie cable is introduced into the trussed arch structure. Hence, comprehensive analysis on the advantages/disadvantages and compatibility for different cable arrangement has been made. On the basis of theoretical analysis, in combination with steel roofing system of large-span trussed arch structure adopted by Wuhu Project, discussion on the major structural issues in the said project has been made. Comparing with prestressed cable influences over the rod bearing, rigidity and arch spring support horizontal trust regarding different cable-trussed arch structures, optimum roofing structural proposal for such specific project is selected, i.e. non-prestressed primary/secondary trussed arch added with hooped edge. Combined with the engineering design, relevant key points concerned with support design and joint design regarding the trussed arch structural design are classified. Relationship between the construction solution optimization and roofing structural design has been analyzed, offering reasonable structural design suggestion and providing reference for the future similar engineering design.
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