Double Round Tube-Form Yielding Damper with Similar Behaviors in Tension and Compression for CBFs Buildings’ Structures
Subject Areas : Analysis of Structure and Earthquake
صاحب پیرانی
1
()
Heydar Dashti Naserabadi
2
(Department of civil engineering, Islamic Azad university, Chalous, Iran.)
مرتضی جمشیدی
3
(گروه عمران دانشگاه آزاد چالوس)
Mahmood Hooseini
4
(Structural Institute, International Institute of Earthquake Engineering and Seismology,
Tehran, Iran)
Keywords: Bracing Elements, Steel Double Straps, Energy Dissipation, Finite Element Analysis.,
Abstract :
To enhance energy dissipation and prevent buckling in concentrically braced frames (CBFs), steel yielding dampers have been suggested, however, most of them have drawbacks, including differing tension-compression behaviors, complexity, and lacking a straightforward design method. This paper introduces the Double Round Tube-form Yielding Parts (DRTYP) Steel Damper, which exhibits consistent tension-compression behavior, easy manufacturing, and a simple design based on two relationships. The damper dissipates energy through two circular tube parts - one in tension, the other simultaneously in compression. The paper illustrates the damper's hysteretic behavior through lab tests and finite element analyses (FEA). Based on FEA results for DRTYP dampers with various tube dimensions, two relationships, linking initial stiffness and yielding strength to geometric features are provided. Also, a straightforward procedure for damper design in multi-story buildings with chevron bracing is suggested. To demonstrate the damper's efficiency in reducing seismic responses, its application in a 5-story building is discussed through nonlinear time history analyses. Results show that using appropriately designed DRTYP dampers can reduce the building's maximum roof acceleration and maximum base shear, on average, approximately 30% and 20%, respectively, compared to conventional CBFs.
1. Kelly JM, Skinner RI, Heine AJ. Mechanisms of energy absorption in special devices for use in earthquake resistant structures. Bulletin of the New Zealand Society for Earthquake Engineering. 1972 Sep 30;5(3):63-88.
2. Skinner RI, Heine AJ, Tyler RG. Hysteretic dampers to provide structures with increased earthquake resistance. InProceedings Sixth World Conference on Earthquake Engineering, New Delhi 1977 Jan.
3. Hosseini M, Mirzaaghae, Y, Tabrizi B.E. A Two-Ring Energy Dissipating Device with Similar Behaviors in Tension and Compression to Create Buckling Resistant Braces. In Proceedings of the 15th World Conference on Earthquake Engineering (15WCEE), Lisbon, Portugal. 2012.
4. Hosseini M, Bozorgzadeh S. Investigating double-ADAS device behavior and comparison with ADAS device. InProceedings of the International Conference on Earthquake Engineering (SE-50EEE), Skopje, Macedonia 2013.
5. Hosseini M, Kherad S. A multi-stud energy dissipating device as the central fuse to be used in short-to mid-rise regular steel buildings with rocking motion. InInternational Van Earthquake Symposium, Van, Turkey 2013 Oct.
6. Hosseini M, Alavi S. A kind of repairable steel buildings for seismic regions based on buildings’ rocking motion and energy dissipation at base level. International Journal of Civil and Structural Engineering-IJCSE. 2014 Sep 30;1(3).
7. Hosseini M, Ghorbani Amirabad N. A structural fuse to create repairable buildings with seesaw motion in earthquake and its FE modeling. In11th Canadian Conference on Earthquake Engineering 2015.
8. Kazemifard H, Hosseini M, Nekooei M, Hashemi BH. Numerical study of the circumferential fuses used in steel repairable buildings with seesaw motion. Latin American Journal of Solids and Structures. 2019 Mar 21;16: e160.
9. Najari Varzaneh M, Hosseini M. Cyclic performance and mechanical characteristics of the oval-shaped damper. KSCE Journal of Civil Engineering. 2019 Nov;23(11):4747-57.
10. Kherad S, Hosseini M, Motamedi M. Experimental study on a novel replaceable yielding‐based energy dissipater for rocking and seesaw buildings. The Structural Design of Tall and Special Buildings. 2020 Oct 25;29(15): e1795.
11. Labibi H, Gerami M, Hosseini M. Sensitivity analysis of behavior of simple trapezoidal steel plates to introduce a new yielding damper. International Journal of Engineering. 2021 Oct 1;34(10):2302-12.
12. Javanmardi A, Ibrahim Z, Ghaedi K, Benisi Ghadim H, Hanif MU. State-of-the-art review of metallic dampers: testing, development and implementation. Archives of Computational Methods in Engineering. 2020 Apr; 27:455-78.
13. Chan RW, Albermani F, Williams MS. Evaluation of yielding shear panel device for passive energy dissipation. Journal of Constructional Steel Research. 2009 Feb 1;65(2):260-8.
14. Farsi A, Amiri HR, Manshadi SD. An innovative C-shaped yielding metallic dampers for steel structures. InStructures 2021 Dec 1 (Vol. 34, pp. 4254-4268). Elsevier.
15. Oh SH, Kim YJ, Ryu HS. Seismic performance of steel structures with slit dampers. Engineering structures. 2009 Sep 1;31(9):1997-2008.
16. Mahjoubi S, Maleki S. Seismic performance evaluation and design of steel structures equipped with dual-pipe dampers. Journal of Constructional Steel Research. 2016 Jul 1; 122:25-39.
17. Hsu HL, Halim H. Brace performance with steel curved dampers and amplified deformation mechanisms. Engineering Structures. 2018 Nov 15; 175:628-44.
18. Hsu HL, Halim H. Improving seismic performance of framed structures with steel curved dampers. Engineering Structures. 017 Jan 1; 130:99-111.
19. Ghabussi, A., Marnani, J.A. and Rohanimanesh, M.S., 2020, April. Improving seismic performance of portal frame structures with steel curved dampers. In Structures (Vol. 24, pp. 27-40). Elsevier.
