Sanya Sports Center Uses Carbon Fiber Cables For The First Time
Sanya Sports Center is the main competition venue of the Asian Games. It is located on Baopo Road, Jiyang District, Sanya City, Hainan Province. It covers an area of 445 acres and has a total construction area of 330,000 square meters. It mainly builds a 40,000-seat stadium, 1 There are 10,000-seat gymnasiums and a 3,000-seat swimming pool, supporting construction of public service buildings, underground parking lots and equipment rooms, warm-up practice fields, national fitness squares, and national fitness parks.
structural system
The sports center adopts a double-layer spoke type cable truss structure. The cable structure is elliptical as a whole. The short axis of the plane projection is 224 meters and the long axis is 261.8 meters; the central opening has a short axis of 134 meters and a long axis of 171.8 meters. The cable structure consists of upper ring cable, lower ring cable, 104 cross cables and 52 radial cable trusses. Both hoop and radial cables are made of high vanadium closed cables with a maximum diameter of 120mm; the inner ring cross cables are made of wave anchor CFRP parallel plate cables.
cable structure system
At present, the cable truss structure of the stadium project all adopts domestic Galfan airtight cables with a maximum diameter of 120mm, which is the largest diameter used in the construction of comprehensive stadiums in China; in the building. The cross cable between the upper and lower ring cables is made of carbon fiber cable. The tensile strength of the carbon fiber cable reaches 300t, the design length is 19m, the diameter is small, and the breaking force is large, which can effectively reduce the weight of the cable body.
Carbon fiber cable node design
The cable structure of the stadium project adopts a double-layer spoke cable truss structure system. The system is composed of a pull-up ring, a pull-down ring, a pressure-ring beam, 52 sets of inner ring cross cables and 52 radial cable trusses arranged along the circumferential direction. As a domestic innovative cable-membrane structure, node design is an important link to ensure the safety of the system. Therefore, the overall modeling and analysis of the cable structure is carried out, and the key nodes are optimized to meet the design requirements.
Global Modelling Ring Nodes
The selection of the double-layer spoke cable truss structure system will cause the unbalanced force of the ring cable to be large. Therefore, when designing the nodes, it is necessary to consider leaving enough clamping length of the ring cable clamping groove. After repeated communication with the design institute, the width of the cable clip was finally determined to be 600mm, thereby reducing the weight of the cable clip and the self-weight load of the roof. In addition, the "digging treatment" is adopted in the middle position, which makes the design more reasonable and beautiful.
After the completion of the construction of the Sanya Sports Center project, it will be the largest sports event venue in the whole of Hainan Province. It will integrate the sports industry, sports fitness and ecological sports to improve the new taste and new urban services for the entire Sanya City, and promote the entire Sanya City. city Development. Only professionals can create unique value, and speculation has no future. With advanced product technology, integrated product portfolio, and professional service model, Jianlong Hardware has always helped the city's high-quality development and contributed to the construction of national sports.
