WANG Wei, ZHONG Kai, XU Shanwen, LI Yu, LIU Lei, LI Yukun. Mechanical Properties of the Axial Tension and Compression Corrugated Steel Plate Damper[J]. Journal of Beijing University of Technology, 2022, 48(4): 378-391. DOI: 10.11936/bjutxb2021040011
    Citation: WANG Wei, ZHONG Kai, XU Shanwen, LI Yu, LIU Lei, LI Yukun. Mechanical Properties of the Axial Tension and Compression Corrugated Steel Plate Damper[J]. Journal of Beijing University of Technology, 2022, 48(4): 378-391. DOI: 10.11936/bjutxb2021040011

    Mechanical Properties of the Axial Tension and Compression Corrugated Steel Plate Damper

    • To solve the problem of the limited application range of the damper under certain actual working conditions, an axial tension compression corrugated steel plate damper were put forward for the first time, and four damper test pieces with the variable length ratio of the damper and the flange thickness as the variables were designed as parameters. The quasi-static test and ABAQUS finite element analysis were adopted to study its mechanical properties. The test results show that the waveform webs of the four dampers specimens are basically in the ideal state of pure shear, the four specimens have good ductility and energy dissipation capacity, and the hysteresis curve of them is stable and plump. When the ratio of the damper increased, the capacity and ductility increased at the same time, however, the load-bearing capacity was reduced. When the thickness of flange is increased, the load-bearing capacity of damper also increases. However, the energy consumption capacity differed slightly. Nine damper models were established by using ABAQUS software to verify the reliability of the simulation and analyze extended factors. The simulation results show that the finite element analysis is in good agreement with the test results, the aspect ratio of the damper is best ensured in the range of 0.5-0.9. Within this range, the increase of the aspect ratio causes a larger increase of the hysteretic performance of the damper. When the ratio of flange to corrugated web thickness was not less than 2.4, the increase of flange plate thickness had little effect on the overall energy consumption performance of the damper. Combining the test results and the ABAQUS finite element analysis results, the theoretical calculation formula for the tensile (compressive) bearing capacity of the axial tension and compression metal damper was obtained by fitting. Through comparison with the test results, it demonstrates that the theoretical calculation formula has certain applicability.
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