Experimental and numerical study on a high-rise building with transfer slab

Abstract

To evaluate the seismic performance of a high-rise building with transfer slab, a scaled model with a ratio of 1:15 is fabricated and shake table tests are conducted to investigate the seismic damage of the scaled model, in which the frequent, fortification, rare, and extremely rare multidimensional seismic excitations for different design targets are considered. The experimental results are analyzed and discussed to compare and validate the numerical results, including peak acceleration and inter-story displacement response. Through the discussion of experimental and numerical results, a qualitative evaluation was conducted for the seismic performance of high-rise buildings with transfer slabs. Results show that the numerical results agree well with the experimental responses, which reveal that the design performance goals under different seismic excitations can be achieved. Note that the shear-wall structure above the transfer slab undergoes elastic-plastic behavior before the frame structure below the transfer slab, ensuring the safety of the bottom frame structure. The seismic performance of the prototype building was qualitatively evaluated under rare and extremely rare earthquakes, which provide reliable basis for structural safety of the high-rise building with transfer slab. The achievements also contribute to the design of high-rise buildings with transfer slab and ensure the safety of occupants and minimize damage in the event of earthquakes.