Roof structure design of Shanghai South Railway Station

Publisher Summary The chapter focuses on the steel roof structure of Shanghai South Railway Station. The chapter describes the layout and components of Shanghai South Railway Station and then presents the results of the design, analysis, and experiment. Shanghai South Railway Station, which connects several railways and subways, plays a significant role as Shanghai's landmark building. The architects requested a circular roof, which was in conflict with the layout of the lower part, so a huge concrete circular beam to support the whole roof was used. The columns are steel pipe columns. The diameter of the inner columns is 650 mm, and the outer columns are tapered section whose diameter changes from 600 mm to 1000 mm. The columns are fixed on a transfer concrete beam. Each of the main beams is twice bifurcated, and is supported by one inner column and two outer columns. Central ring and circular purlins are used, where strengthened purlins act as ring hoops to increase the roof's global stiffness and reduce horizontal forces on the top of the columns. The chapter also describes the use of a bracing system that is composed of three types of bracings: main, facade, and ring.