The award-winning project “Basic Theory, Key Technology and International Application of Chinese High Strength 690MPa Steel Structures”, led by Prof. Kwok-fai Chung, Department of Civil and Environmental Engineering, and Director of Chinese National Engineering Research Centre for Steel Construction (Hong Kong Branch)(www.polyu.edu.hk/cnerc-steel), was successfully completed with academics from Tsinghua University and Imperial College London, and experts from famous consulting and construction companies in Hong Kong, as well as leading steel fabricators and suppliers in China.
The project provided a comprehensive solution to innovative applications of high quality Chinese 690MPa steel in construction. With thorough research and development collaboration, advanced predictions on mechanical properties and structural behaviour of S690 welded sections were achieved through integrated experimental and numerical investigations. This allowed minimal or even no penalty in both strength and ductility in these welded sections after welding. Also, effective design rules became available through rigorous design development and codification.
Practically, research results have been applied in a number of construction projects in Hong Kong, such as the completed Double Arch Steel Bridge of the Cross Bay Link in Tseung Kwan O, the long span roof structures of the Kowloon Tsai Swimming Pool, as well as the steel roofs of both the East and the West Stands of the Yuen Long Stadium (both under construction). (Click here to learn more)