Shaking table test study of high-rise frame-shear wall structure isolated by friction pendulum bearings

In order to investigate the seismic performance of high-rise buildings isolated by friction pendulum isolation bearings (FPS), the detailed design process was proposed. One 12-story frame-shear wall structure isolated by FPS was designed. The corresponding scaled model was constructed and shaking table tests were conducted to investigate the seismic isolation performance of FPS. Based on the test results, the floor response of superstructure and displacement response of FPS were studied. The differences of hysteresis performance between FPS under the shear wall and that under the frame column were analyzed. The results indicate that the 12-story frame-shear wall structure remains elastic under frequently earthquake and is repairable under fortification earthquake, rarely earthquake and even very rare earthquake of intensity Ⅸ. The floor response of superstructure is significantly reduced. The seismic isolation performance becomes better with the increase of earthquake intensity after completely sliding of FPS. The self-centering capacity of FPS is proved satisfactory. Vertical lifting happens to FPS under shear wall under rarely earthquake of intensity Ⅸ and the hysteretic performance of FPS is affected.