Singapore National Stadium
- Singapore, Singapore
- 19,086 m²
- Leisure, Sport
- Retractable, Roofs
Arup Singapore Pte Ltd
Singapore National Stadium is an excellent showcase of Vector Foiltec’s turnkey design & build approach. Spanning 312m, it is the largest free spanning dome in the world. The central opening section consists of two parts, each covering an area of almost 10,000m2. As the roof moves around the surface of the dome, from closed to open position, the supporting structure of the moving sections is designed with flexible connections, allowing the structure to deflect and deform under the action of gravity.
Vector Foiltec’s early involvement enabled the development of a unique custom-built Texlon® ETFE cladding system. Connected to the moving structure on sliding bearings, this system is able to absorb and accommodate all differential movement that could occur in the structure below.
Local climatic conditions not only dictate basic design loads but also the performance of the building materials themselves, and the requirements for managing the differentials between the required internal conditions and the external environment.
The stadium owner benefits from having a Texlon® ETFE roof through lower operational costs, especially energy costs. Cooling, or heating, depending on local environment, is more efficiently achieved because Texlon® ETFE cladding can be adjusted to local climatic conditions. At the same time as being a physical protection from the elements, Texlon® ETFE can be engineered to provide natural light and heat in the proportions required by the building’s users.
The use of Texlon® ETFE helped reduce the overall weight of the roof and subsequent steel tonnage required, and consequently had a huge impact on the overall carbon footprint and energy consumption of the stadium.
The movable roof had to take Singapore’s tropical climate into account, and following extensive testing, a new print pattern was designed. This not only helped reduce solar gain and provide shade, but also paved the way for optimal projection and illumination of the spectacular roof at night by using low wattage LED lighting to create one of the largest LED displays in the world.
Main Image: © Gin Tay