SMALL－SCALE MODEL EXPERIMENT FOR DYNAMIC RESESPONSE SIMULATION OF A LONG－PERIOD STRUCTURE

Abstract

 In order to reproduce the dynamic behavior of high-rise buildings, we conducted a long-period, large-displacement shaking table test for high-rise buildings by using a small-scale model. A proposed test specimen consists of four layers of steel frames, four columns with rollers at their heads and two leaf springs to introduce lateral rigidity. In order to make the natural period longer, we use aluminum alloy (extra-super duralumin A7075) plates as the material of the leaf springs. We estimate the resonance frequency by using Fourier spectral ratios of each floor response with respect to the shaking table. Then we identify its physical parameter by fitting the hysteresis loop and create a simulation model that can predict dynamic behavior of the test specimen.