Seismic analysis of jack-up platform based on response spectrum method

To verify the capability of the jack-up platform during earthquake, the seismic analysis based on spectrum response method is studied. First SACS analysis model of the platform is established, then the vibration mode shape and seismic response is analyzed, and finally the loads exacted from seismic response are combined with the gravity loads, and member and joint code check is executed. The calculation and analysis results show that the target jack-up platform meets the strength requirements under the design seismic load.