Amirkabir Journal of Civil Engineering

Amirkabir Journal of Civil Engineering

Experimental and Numerical Evaluation of an Innovative Diamond-Scheme Bracing System Equipped with a Yielding Damper

Document Type : Research Article

Authors
ghasem pachideh 1
Mohammad Ali Kafi 2
Majid Gholhaki 3
1 Phd Candidate, civil faculty, semnan university
2 Faculty of Civil Engineering,Semnan University,Senmnan,Iran
3 Associate Professor, Department of Civil Engineering, University of Semnan, Semnan, Iran.
10.22060/ceej.2020.18035.6744
Abstract
Application of the steel ring as a type of seismic fuse has been one of the efforts made by researchers in recent years aiming to enhance the ductility of the bracing systems which in turn, possesses various advantages and disadvantages. Accordingly, to alleviate these disadvantages, an innovative bracing system with a diamond scheme equipped with a steel ring is introduced in this paper. In this system, the braces and yielding circular damper act in parallel whose main functionality is to increase ductility, energy absorption, and mitigate drawbacks of the existing bracing systems, in which the braces and yielding circular damper act in parallel. To conduct the experimental tests, specimens with three types of rigid, semi-rigid, and pinned connections were built and subjected to cyclic loading so that their performance could be analyzed. Promisingly, the results indicated both great applicability and efficiency of the proposed system in energy absorption and ductility. Moreover, it was concluded that as the braces and damper are in parallel, the use of a steel ring with a smaller size and thickness would result in higher energy absorption and load-resisting capacity when compared to the other existing systems. Finally, to assess the potential of numerically modeling the proposed system, its finite element model was simulated by ABAQUS software and observed that there is a great agreement between the numerical and experimental results.
Keywords
Innovative bracing system
Diamond-scheme brace
Circular yielding damper
Cyclic load
Energy absorption
Ductility
Subjects
  1. Lotfollahi, M. Mofid, Innovative method in seismic design of slab-on-girder steel bridges, Constructional Steel Research, 64(12) (2008) 1420-1435.
  2. L. Hsu, J.L. Juang, C.H. Chou, Experimental evaluation on the seismic performance of steel knee braced frame structures with energy dissipation mechanism, Steel and Composite Structures, 11(1) (1979) 77-91.
  3. N.C.K. Murthy, Application of visco-hyperelastic devices in structural response control, The degree of Master of Science; Civil Engineering Department, Blacksburg Polytechnic Institute, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA (2005).
  4. D. Marshall, F.A. Charney, A hybrid passive control device for steel structures, I: Development and analysis, Constructional Steel Research, 66(10) (2010a) 1278-1286.
  5. D. Marshall, F.A. Charney, A hybrid passive control device for steel structures, II: Physical testing, Constructional Steel Reseach, 66(10) (2010b) 1287-1294.
  6. Moghaddam, H. Estekanchi, On the characteristics of off-centre bracing system, Constructional Steel Research, 35(3) (1995) 361-376.
  7. Amadio, I. Clemente, L. Macorini, M. Fragiacomo, Seismic behaviour of hybrid systems made of PR composite frames coupled with dissipative bracings, Earthquake Engineering & Structural Dynamics, 37(6) (2008) 861-879.
  8. D. Annan, M.A. Youssef, M.H. El Naggar, Experimental evaluation of the seismic performance of modular steel-braced frames, Engineering Structures, 31(7) (2009) 1435-1446.
  9. M. Kelly, R.I. Slinner, A.J. Heine, Mechanisms of Energy Absorption in Special Devices for Use in Earthquake Resistant Structures, Bulletin of New Zealand National Society for Earthquake Engineering, 5(3) (1972) 63-88.
  10. I. Slinner, J.M. Kelly, A.J. Heine, Hysteresis Dampers for Earthquake Resistant Structures, Earthquake Engineering and Structure Dynamic, 3(3) (1974) 287-296.
  11. K. Chan, F. Albermani, Experimental study of steel slit damper for passive energy dissipation, Engineering Structures, 30(4) (2008) 1058–1066.
  12. A. Kafi, Analytical and experimental study of effect of steel ring on ductility of concentric braces, the degree of Doctorate of Philosophy, Civil Engineering Department, Iran University of Science and Technology, Tehran, Iran, (2008).
  13. Rakicevic, D. Jurukovshi, Behavior factor (q-factor) for non-standard dual steel frame structures, 11th European Conference on Earthquake Engineering, (1998).
  14. Roufegarinejad, S. Sabouri, Nonlinear behavior of yielding damped bracing frames, 15th ASCE Engineering Mechanics Conference, Columbia University, New York, (2002).
  15. Motamedi, M. Hafezi, M. Yekrangnia, Analytical Study of Steel Ring Connections as Hysteretic Metallic Damper, 15 WCEE, (2012).
  16. T. PENG, C. LIN, Y.M. CAO, W. X. DUAN, Seismic Behaviors of the Composite Central Brace with Steel Ring Damper, 7th International Conference on Energy and Environmental Protection (ICEEP 2018), 1089-1092.
  17. Bazzaz, A. Kheyroddin, M.A. Kafi, Z. Andalib, Evaluation of the seismic performance of off-centre bracing system with ductile element in steel frames, Steel and Composite Structures, 12(5) (2012) 1-20.
  18. Andalib, M.A. Kafi, A. Kheyroddin, M. Bazzaz, Experimental investigation of the ductility and performance of steel rings constructed from plates, Journal of Constructional Steel Research, 103 (2014), 77–88.
  19. Bazzaz, A. Kheyroddin, M.A. Kafi, Z. Andalib, H. Esmaeili, Evaluating the Seismic Performance of Off-centre Bracing System with Circular element in Optimum Place, International Journal of Steel Structures, 14(2) (2014) 1-12.
  20. Bazzaz, Z. Andalib, M.A. Kafi, A. Kheyroddin, Evaluating the performance of OBS-C-O in steel frames under monotonic load, Earthquakes and Structures, 8(3) (2015) 697-710.
  21. Bazzaz, Z. Andalib, A. Kheyroddin, M.A. Kafi, Numerical comparison of the seismic performance of steel rings in off-centre bracing system and diagonal bracing system, Steel and Composite Structures, 19(4) (2015) 917-937.
  22. Gao, J.S. Jeon, D.E. Hodgson, R. DesRoches, An innovative seismic bracing system based on a superelastic shape memory alloy ring, Smart Materials and Structures, 25(5) (2016) 1-16.
  23. Andalib, M.A. Kafi, M. Bazzaz, S.B. Momenzadeh, Numerical evaluation of ductility and energy absorption of steel rings constructed from plates, Engineering Structures, 169 (2018) 94–106.
  24. Peng, C. Lin, Y. Cao, W. Duan, Nonlinear Finite Element Simulation on Seismic Behaviour of Steel Frame-Central Brace with Ring Damper, IOP Conf. Series: Materials Science and Engineering 472 (2019) 012031, doi:10.1088/1757-899X/472/1/012031.
  25. Kheyroddin, R. Sepahrad, M. Saljoughian, M.A. Kafi, Experimental evaluation of RC frames retrofitted by steel jacket, X‑brace and X‑brace having ductile ring as a structural fuse, Journal of Building Pathology and Rehabilitation, (2019) 4-11.
  26. AISC, Prequalified connections for special and intermediate steel moment frames for seismic application, Chicago, USA (2016).
  27. Applied Technology Council, Guidelines for seismic testing of components of steel structures. Report of ATC-24, Redwood City, CA, USA (1992).
Amirkabir Journal of Civil Engineering
Volume 53, Issue 11
February 2022
Pages 4557-4576