With the continuous development of modern construction technology, long-span steel structures have been widely used in various architectural designs due to their unique advantages. As a special sports facility, the design of the indoor racetrack must not only meet the needs of sports functions, but also ensure the safety and economy of the structure.
Design requirements for indoor racecourses
The first thing to consider when designing an indoor racecourse is its functionality. The horse racing track needs to be wide and flat enough to ensure the safety of horses. At the same time, the internal environment of the racecourse should meet the physiological and psychological needs of the horses, such as good ventilation, lighting and temperature control. In addition, the racecourse also needs to be equipped with corresponding auxiliary facilities such as auditoriums, locker rooms, and storage rooms.
Advantages of long-span steel structures
Large-span steel structures have significant advantages in the design of indoor racecourses due to their light weight, high strength, fast construction speed, environmental protection and energy saving. First of all, the steel structure is light in weight, which can reduce the pressure on the foundation and reduce foundation treatment costs. Secondly, the steel structure has high strength and can withstand large loads, ensuring the structural safety of the racecourse. In addition, the steel structure construction speed is fast, which can shorten the construction period and reduce investment costs. Finally, the steel structure materials can be recycled and reused, which meets the requirements of environmental protection and energy saving.
Key points in the design of large-span steel structures
Load analysis: When designing a long-span steel structure, a detailed load analysis must first be carried out, including dead load, live load, wind load, snow load, etc. Based on the load analysis results, determine the reasonable structural form and size.
Structural selection: The selection of large-span steel structures should be based on the actual conditions and design requirements of the racecourse. Commonly used structural forms include portal frame, grid structure, suspension structure, etc. When selecting, the mechanical performance, construction difficulty and economic benefits of the structure should be fully considered.
Node design: Nodes are key parts of long-span steel structures. Whether their design is reasonable or not directly affects the safety and stability of the entire structure. Therefore, in node design, the stress conditions, connection methods and construction requirements of the nodes must be fully considered.
Fire protection design: Steel structures easily lose their load-bearing capacity at high temperatures, so fire protection design must be fully considered in the design of large-span steel structures. The fire resistance of steel structures can be improved by spraying fire retardant coatings and setting up fire isolation zones.
Anti-corrosion design: Steel structures are prone to rust and corrosion in humid environments, affecting the service life of the structure. Therefore, in the design of long-span steel structures, effective anti-corrosion measures must be taken, such as applying anti-corrosion paint and setting anti-corrosion coatings.
Case analysis
Taking the long-span steel structure design of an indoor racecourse as an example, the design process and implementation results are introduced in detail. The racecourse adopts a portal rigid frame structure. Through reasonable node design and fire prevention and anti-corrosion measures, the safety and stability of the structure are ensured. At the same time, the design also fully considers the use functions and environmental needs of the racecourse, providing athletes and spectators with a comfortable environment for sports and viewing.
The design of the long-span steel structure of an indoor racecourse is a complex and important task. In the design, factors such as the use function, structural safety and economy of the racecourse should be fully considered, and appropriate structural forms and node design plans should be selected. Through reasonable fire prevention and anti-corrosion measures and meticulous construction management, the safety, reliability and long-term use effect of large-span steel structures can be ensured.
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