Abstract
Qingdao Citizen Fitness Center Sports Stadium is saddle-shaped with a construction area of about 140,000m<sup>2</sup>. The rippled roof and façade are assembled with ultra-long variable cross-section spiral aluminum plate units. The largest aluminum plate unit is 1.5 tons heavy and 13 meters long. The main structure of this project is the steel structure that can deform due to the factors such as temperature and subsidence, thus making it difficult to accurately install the aluminum plate curtain wall. During construction, the total station is used several times for data acquisition to generate the BIM model, which is aligned, compared and analyzed with the theoretical 3D model for providing the accurate support for the construction process. A 1:1 main truss of the steel structure is erected on the façade to simulate the tire frame erection and assembly the ultra-long variable cross-section spiral aluminum plate units on site. The main steel structure, with the lowest point at 26 meters and the highest point at 49 meters, is lifted by the truck cranes and inserted for installation from up to down. This process is a new curtain wall construction method that increases the installation efficiency by 30%, improves the construction quality and guarantees the construction safety. It can provide the technical reference for the curtain wall work of other similar large sports stadium projects in the future.
Highlights
Qingdao Citizen Fitness Center Sports Stadium is located in the west of Aodong Road, south of Shuangji Road in High-tech Zone
3) The main structure of this project is the steel structure, which may deform due to the factors such as temperature, subsidence and quality change after installation of the auxiliary structure of the curtain wall
All connecting points of the aluminum plate curtain wall are located on the auxiliary steel structure and transmit force to the main steel structure
Summary
Qingdao Citizen Fitness Center Sports Stadium is located in the west of Aodong Road, south of Shuangji Road in High-tech Zone. It has a construction area of about 140,000m2, with a stand, a sports ground, an audience lounge hall (corridor), game rooms, equipment rooms, reception rooms, lounges, offices and auxiliary commercial rooms. The saddle shape matches the morphological feature of large sports stadium that has a stand high in the east-west direction and low in the south-north direction, being able to meet the functional needs and avoiding waste of space. The uniform texture design ensures the integrity and simplicity of the shape. The obliquely flowing rippled texture creates a dynamic effect like the wind blowing on the sea surface and perfectly displays the concept of “Sand of Sea”
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