Seismic isolation design and dynamic analysis of Kunming new international airport terminal

The Kunming new international airport terminal is one of the world's largest seismic isolation buildings at present. The layout scheme of the seismic isolation layer was described in detail. The finite element model of the terminal was established and the dynamic responses were analyzed. The shaking table test on the structural model with 1/60 scale factor and simplified layout was carried out. The results show the vibration-reduction effect of the seismic isolation building is about 50%. Further, the seismic performances of the prototype structure were analyzed numerically. Dynamic characteristics, acceleration responses and displacement responses of the prototype structure were investigated under different levels of earthquake. Comparing with the shaking table test's results, it is shown that the finite element analysis results are in good agreement with the experimental results. The Kunming new international airport terminal has clear isolation mechanism and good isolation effect with the theoretical and experimental proof. It is feasible and effective for applying the base isolation technology to long-span structures.