THE MECHANISM AND FINITE ELEMENT ANALYSIS OF THE ENHANCED ROTATIONAL FRICTION DAMPER

被引：0
|
作者：
Lin Z.-J. [1 ]
Zhang C. [1 ]
Yu T.-H. [1 ]
Liu J.-Y. [1 ]
Wu Z.-K. [1 ]
机构：
[1] College of Civil Engineering, Guangzhou University, Guangzhou
来源：
Gongcheng Lixue/Engineering Mechanics | 2024年 / 41卷
关键词：
beam-column joint; enhanced mechanism; mechanical properties; rotational friction damper; working mechanism;
D O I：
10.6052/j.issn.1000-4750.2023.05.S037
中图分类号：
学科分类号：
摘要：
In this study, a novel enhanced rotational friction damper (ERFD) is proposed, which is applied to beam-column joints by increasing its rotation angle and thereby increases its energy dissipation capacity. To verify the feasibility of the working mechanism, the finite element model is established in ABAQUS software, and the sectorial friction damper (SFD) and the common rotational friction damper (RFD) with same friction condition are used as comparison models, so as to explore the energy dissipation mechanism of ERFD. The results show that the bearing capacity, stiffness and energy consumption of ERFD are significantly improved, increased by 17.63%, 12.54% and 14.53% compared with SFD, respectively. The stiffness and energy consumption of other three specimens with different friction surface arrangement are reduced by 29.38%, 58.67%, 70.76%, and 29.55%, 58.96%, 70.58%, respectively. The bearing capacity and energy consumption capacity are enlarged by 92.38% and 85.49% compared with RFD. It shows that ERFD has good energy dissipation capacity, and the overall mechanical properties of the friction surfaces arranged at all three points are the best, and the enhancement effect is remarkable. © 2024 Tsinghua University. All rights reserved.
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页码：171 / 178
页数：7
相关论文
共 17 条
  • [1] ZHENG Yi, ZHANG Yaoting, Damage investigation and consideration of major buildings in the Wenchen earthquake, Journal of HUST (Urban Science Edition), 26, 2, pp. 95-98, (2009)
  • [2] WANG Yayong, Lessons learnt from building damages in the Wenchuan earthquake——seismic concept design of buildings, Journal of Building Structures, 29, 4, pp. 20-25, (2008)
  • [3] HUANG L J, ZENG B, ZHOU Z, Et al., Seismic behavior and reliability of variable friction damped self-centering prestressed concrete frames considering bolt bearing, Soil Dynamics and Earthquake Engineering, 164, (2023)
  • [4] SUN Feifei, HOU Yufang, LI Chengming, A review on rotational dampers and rotational energy dissipation joints, Progress in Steel Building Structure, 18, 6, pp. 1-11, (2016)
  • [5] YANG Cantian, LI Aiqun, JIA Junbo, The seismic performance of precast concrete frame structures with dry-connected rotational friction beam-column joints, Engineering Mechanics, 39, 8, pp. 223-231, (2022)
  • [6] WU Congxiao, LIE Wenchen, WU Changgen, Et al., Study on seismic performance and hysteretic model of rotational damper for energy-dissipative precast concrete joints, Engineering Mechanics, 40, 2, pp. 97-111, (2023)
  • [7] QI A, LIU X H, XU R J, Et al., A precast beam-column joint using an innovative friction damper as a connector: Experimental and numerical study [J], Structures, 35, pp. 968-989, (2022)
  • [8] ZHUANG L D, YANG Y, LI Y F., Development and experimental study of a new rotational metallic damper for the beam–column connection, Journal of Structural Engineering, 148, 9, (2022)
  • [9] WANG Genping, ZHANG Chao, DENG Xuesong, Et al., Experimental study on seismic performance of RC frame retrofitted with sector lead viscoelastic dampers, China Civil Engineering Journal, 49, 10, pp. 41-48, (2016)
  • [10] ZHANG C, HUANG W, ZHOU Y, Et al., Experimental and numerical investigation on seismic performance of retrofitted RC frame with sector lead viscoelastic damper, Journal of Building Engineering, 44, (2021)
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