Seismic response of cam response amplifier with metallic damper structural system

被引：0
|
作者：
Zhao Z.-L. [1 ]
Zhao G.-F. [1 ]
Zhang J.-J. [1 ]
Ma Y.-H. [2 ,3 ]
机构：
[1] College of Civil Engineering, Guangzhou University, Guangzhou
[2] Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou
[3] Laboratory of Earthquake Engineering and Applied Technology, Guangzhou
来源：
Gongcheng Lixue/Engineering Mechanics | 2022年 / 39卷
关键词：
Cam-type; Earthquake response analysis; Metallic damper; Response amplification technology; Single degree of freedom;
D O I：
10.6052/j.issn.1000-4750.2021.04.S022
中图分类号：
学科分类号：
摘要：
A new type of CAM response amplifier with metal damper is proposed, and its working mechanism and restoring force calculation formula is introduced. Furthermore, the motion equation and energy equation are established for the single-degree-of-freedom system of CAM response amplifier with metallic damper. Based on the same control effect, the seismic responses of the single-degree-of-freedom systems with larger damping metal dampers and with the cam-type response amplification device of smaller damping metal dampers were analyzed and compared respectively. By using metallic damper and CARD with different design parameters, the control effect was compared and analyzed based on the same displacement under all levels of earthquakes. The results show that all the combined cam-type response amplifying metal dampers can achieve the same displacement control effect and energy dissipation ratio as the traditional metal dampers, and the shear stress control effect is also significantly improved under all levels of earthquakes. The results show that the smaller damping metal damper can achieve the same displacement control effect of the larger damping damper directly by response amplification, which is more economic. In addition, the device can avoid displacement failure of the damper under extremely rare earthquakes, so that the safety of the structure and damper is ensured under earthquakes at all levels. Copyright ©2022 Engineering Mechanics. All rights reserved.
引用
收藏
页码：129 / 137and143
相关论文
共 20 条
  • [1] Constantinou M C, Tsopelas P, Hammel W., Testing and modeling of an improved damper configuration for stiff structural systems, (1997)
  • [2] Taylor D P., Toggle brace dampers: a new concept for structural control, Advanced Technology in Structural Engineering: Proceedings of 2000 Structures Congress and Exposition (CD-ROM), pp. 1-8, (2000)
  • [3] Sigaher A N, Constantinou M C., Scissor-jack-damper energy dissipation system, Earthquake Spectra, 19, 1, pp. 133-158, (2003)
  • [4] Hwang J S, Kim J, Kim Y M., Rotational inertia dampers with toggle bracing for vibration control of a building structure, Engineering Structures, 29, 1, pp. 1201-1208, (2007)
  • [5] Kubota M, Ishimaru S, Niiya T, Et al., Dynamic response-controlled structures with lever mechanisms, Proceedings of the SPIE, 3325, pp. 35-44, (1998)
  • [6] Baquero Mosquera J S, Luis Almazan J, Tapia N., Amplification system for concentrated and distributed energy dissipation devices, Earthquake Engineering & Structural Dynamics, 45, 6, pp. 935-956, (2016)
  • [7] Liu Wenguang, Dong Xiuling, He Wenfu, Et al., Dynamic tests and numerical response analysis of new energy dissipated structures with displacement, Journal of Vibration Engineering, 28, 4, pp. 601-609, (2015)
  • [8] Wu Fujian, liu Wenguang, Guo Yan, Et al., Research on seismic response analysis method of viscoelastic damping structures with displacement amplification device, Earthquake Resistant Engineering and Retrofitting, 39, 6, pp. 62-67, (2017)
  • [9] Berton S, Bolander J E., Amplification system for supplemental damping devices in seismic applications, Journal of Structural Engineering, 131, 6, pp. 979-983, (2005)
  • [10] Mirza Hessabi R, Mercan O., Investigations of the application of gyro-mass dampers with various types of supplemental dampers for vibration control of building structures, Engineering Structures, 126, pp. 174-186, (2016)
12