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| Performance tests of steel spring vibration isolation device and analysis of its structural vibration control parameters |
| FU Weiqing1,2, ZHAO Peng1, HAN Yanyan3, GAO Yunfeng3, WANG Jian3 |
1.School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China;
2.Collaborative Innovation Center of Engineering Construction and Safety in Shandong Peninsula Blue Economic Zone, Qingdao University of Technology,Qingdao 266033, China;
3.GERB (Qingdao) Structure Design Office Co., Ltd., Qingdao 266108, China |
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Abstract In recent years, the steel spring vibration isolation device composed of steel spring vibration isolator and damping cylinder is used for vibration control of building structures along subway.At present, the device has shortcomings in multi-directional control performance tests and parametric analysis; in practical engineering, the checking calculation method is mostly used to meet design requirements; there are lacks of practicability and optimality in design process.Here, compression and shear tests of steel spring vibration isolator and energy dissipation tests of damping cylinder were conducted in vertical and horizontal directions, respectively.The mechanical performance parameters of the vibration isolator and energy dissipation performance parameters of the damping cylinder were obtained through test data analysis.Then, taking a 20-story Benchmark model equipped with the device as the study object, effects of parameters of the device on the structural vibration control effect under vertical environment excitation and horizontal rare ground motion input, respectively were systematically analyzed through numerical simulation.Finally, effective ranges of performance parameters of vibration isolator and damping cylinder in the device were determined.It was shown that the study results can provide a reference and a guidance for application of steel spring vibration isolation devices in structural vibration control.
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Received: 02 March 2020
Published: 15 September 2021
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