Structural Design and Research on Raffles City Tower in Hangzhou

Raffles City tower development building is located in Hang Zhou.The main tower is a super high-rise building,which is 250 meters high with 60 stories and 3 levels of basement.This paper is a summary of key structural analysis issues of the tower,including the preferences of the seismic load and wind load,structural system and the overview of structural analysis.Emphasis was put on the analysis on horizontal displacement of the inclined columns under gravity load and the stress conditions of the floor slabs between the inclined columns and the inner core tube.The results showed that wind load will be the lateral control load on super high-rise building,and the inclined columns with large slope will have displacement under vertical load,which may exert adverse effects on the floor slabs.It is necessary to adopt local strengthening measures for the safety of the structure.