پیوندهای مفید
آمار
| تعداد نشریات | 21 |
| تعداد شماره‌ها | 628 |
| تعداد مقالات | 9,179 |
| تعداد مشاهده مقاله | 67,526,947 |
| تعداد دریافت فایل اصل مقاله | 8,061,655 |
Numerical Study of Concentric Brace Equipped with the Eccentric Elements for Strengthening Buildings | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 7، دوره 12، شماره 1 - شماره پیاپی 33، اردیبهشت 2024، صفحه 92-105 اصل مقاله (1.35 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2023.29493.1786 | ||
| نویسندگان | ||
| Asadullah Attal1؛ Mohammad Ali Kafi* 2 | ||
| 1Ph.D. Candidate, Faculty of Civil Engineering, University of Semnan, Semnan, Iran | ||
| 2Associate Professor, Faculty of Civil Engineering, University of Semnan, Semnan, Iran | ||
| تاریخ دریافت: 12 دی 1401، تاریخ بازنگری: 03 اردیبهشت 1402، تاریخ پذیرش: 14 تیر 1402 | ||
| چکیده | ||
| Concentric bracing with ease of design and execution and low construction cost represents the widely used system for resisting the structures to lateral forces. The diverse lateral load-bearing system has a variety of types, characterized by its main performance properties as bearing capacity, stiffness, performance ductility, and energy dissipation. Studies revealed that the brace system is a valuable option for retrofitting existing steel and reinforced concrete structures. However, the bracing system suffers a weakness called axial buckling of the brace under critical compressive load, reducing bearing capacity and interrupting energy dissipation. To address this imperfection and induce the seismic response of the concentrically braced frames, several methods proposed to optimize the performance of concentric braces as; using ductile connections, incorporating shear dissipators, hydraulic or mechanical dampers, frictional dissipators, and restrained braces to avoid buckling. Therefore, in this study, an innovative geometry of brace-to-frame connection is investigated to enhance the concentric brace's performance. The local dissipative fuse system is used to connect the steel channels with the gusset plate at one or both ends and at the time of the earthquake the dissipator yields before the brace buckles and forms a flexible plastic hinge, consuming a significant amount of earthquake energy. Similar studies have been performed earlier but the valuable tensional capacity of the braces was affected. Thus, the innovative method aims to maintain the tensional capacity of the brace in addition to buckling prevention and energy dissipation. Also, the dissipators have a post-earthquake ability to easily provide and replace. Consequently, the numerical work performed in this study effectively prevents buckling, and enhanced energy dissipation while maintaining the full tensional functionality of the brace. | ||
| کلیدواژه‌ها | ||
| Ductility؛ Concentric bracing؛ Buckling؛ Energy dissipation؛ Seismic response؛ Eccentrical innovative connection | ||
| مراجع | ||
|
[1] Chittur Krishna Murthy AN. Application of visco-hyperelastic devices in structural response control 2005.
[2] Andalib Z, Ali Kafi M, Bazzaz M, Momenzadeh S. Numerical evaluation of ductility and energy absorption of steel rings constructed from plates. Eng Struct 2018;169. https://doi.org/10.1016/j.engstruct.2018.05.034.
[3] Chan RWK, Albermani F. Experimental study of steel slit damper for passive energy dissipation. Eng Struct 2008;30:1058–66. https://doi.org/10.1016/j.engstruct.2007.07.005.
[4] Marshall JD, Charney FA. A hybrid passive control device for steel structures, I: Development and analysis. J Constr Steel Res 2010;66:1278–86. https://doi.org/10.1016/j.jcsr.2010.04.005.
[5] Marshall JD, Charney FA. A hybrid passive control device for steel structures, II: Physical testing. J Constr Steel Res 2010;66:1287–94. https://doi.org/10.1016/j.jcsr.2010.04.002.
[6] Mansouri I, Safa M, Ibrahim Z, Kisi O, Tahir MM, Baharom S, et al. Strength prediction of rotary brace damper using MLR and MARS. Struct Eng Mech 2016;60:471–88. https://doi.org/10.12989/sem.2016.60.3.471.
[7] Hadianfard MA, Khakzad AR. Inelastic buckling and post-buckling behavior of gusset plate connections. Steel Compos Struct 2016;22:411–27. https://doi.org/10.12989/scs.2016.22.2.411.
[8] Bazzaz M, Kheyroddin A, Kafi MA, Andalib Z. Evaluating the performance of steel ring in special bracing frame. Proc. 6th Int. Conf. Seismol. Earthq. Eng., 2011.
[9] Abbasnia R, Vetr MG, Ahmadi R, Kafi MA. An analytical and experimental study on the ductility of steel rings. Sharif J Civ Eng 2009;25:41–8.
[10] Andalib Z, Kafi MA, Bazzaz M. Using hyper elastic material for increasing ductility of bracing. 1st Conf. Steel Struct. 2nd Conf. Appl. High-Strength Steels Struct. Ind. Tehran, Iran, December, Persian, 2010.
[11] Bazzaz M, Kheyroddin A, Kafi MA, Andalib Z. Evaluation of the seismic performance of off-centre bracing system with ductile element in steel frames. Steel Compos Struct 2012;12. https://doi.org/10.12989/scs.2012.12.5.445.
[12] Abbasnia R, Vetr MGH, Ahmadi R, Kafi MA. Experimental and analytical investigation on the steel ring ductility. Sharif J Sci Technol 2008;52:41–8.
[13] Pachideh G, Kafi M, Gholhaki M. Evaluation of cyclic performance of a novel bracing system equipped with a circular energy dissipater. Structures 2020;28:467–81. https://doi.org/10.1016/j.istruc.2020.09.007.
[14] Bazzaz M, Andalib Z, Kheyroddin A, Kafi MA. Numerical comparison of the seismic performance of steel rings in off-centre bracing system and diagonal bracing system. Steel Compos Struct 2015;19. https://doi.org/10.12989/scs.2015.19.4.917.
[15] Pachideh G, Gholhaki M, Kafi M. Experimental and numerical evaluation of an innovative diamond-scheme bracing system equipped with a yielding damper. Steel Compos Struct 2020;36. https://doi.org/10.12989/scs.2020.36.2.197.
[16] Drei A, Castiglioni CA, Calado L, Vayas I. Seismic behaviour of steel braced frames with ductile INERDTM connections. Int. Conf. Stab. ductility steel Struct. Lisbon, 2006, p. 969–76.
[17] Naghavi M, Rahnavard R, Thomas RJ, Malekinejad M. Numerical evaluation of the hysteretic behavior of concentrically braced frames and buckling restrained brace frame systems. J Build Eng 2019;22:415–28. https://doi.org/10.1016/j.jobe.2018.12.023.
[18] Hashemi A, Yousef-Beik SMM, Mohammadi Darani F, Clifton GC, Zarnani P, Quenneville P. Seismic performance of a damage avoidance self-centring brace with collapse prevention mechanism. J Constr Steel Res 2019;155:273–85. https://doi.org/10.1016/j.jcsr.2018.12.019.
[19] Peng X-T, Lin C, Cao Y-M, Duan W-X. Seismic Behaviors of the Composite Central Brace with Steel Ring Damper. Proc. 2018 7th Int. Conf. Energy Environ. Prot. (ICEEP 2018), Paris, France: Atlantis Press; 2018. https://doi.org/10.2991/iceep-18.2018.190.
[20] Abdollahzadeh G, Hashemi SM, Tavakoli H, Rahami H. Determination of Hysteretic Behavior of Steel End-Plate Beam-to-Column Connection with Mechanical and Neural Network Modeling. Arab J Sci Eng 2014;39:7661–71. https://doi.org/10.1007/s13369-014-1348-4.
[21] Setyowulan D, Susanti L, Wijaya MN. Study on the behavior of a one way eccentric braced frame under lateral load. Asian J Civ Eng 2020;21:733–9. https://doi.org/10.1007/s42107-020-00234-2.
[22] Sabelli R, Mahin S, Chang C. Seismic demands on steel braced frame buildings with buckling-restrained braces. Eng Struct 2003;25:655–66. https://doi.org/10.1016/S0141-0296(02)00175-X.
[23] Naghipour M, Salim Bahrami SR. Improving the seismic performance of eccentrically braced frames by using a ductile element. Struct Constr Eng 2017;4:18–27. https://doi.org/https://doi.org/10.22065/jsce.2017.77539.1075.
[24] Xu X, Zhang Y, Luo Y. Self-centering eccentrically braced frames using shape memory alloy bolts and post-tensioned tendons. J Constr Steel Res 2016;125:190–204. https://doi.org/10.1016/j.jcsr.2016.06.017.
[25] Kazemi M, Kafi MA, Hajforoush M, Kheyroddin A. Cyclic behaviour of steel ring filled with compressive plastic or concrete, installed in the concentric bracing system. Asian J Civ Eng 2020;21:29–39. https://doi.org/10.1007/s42107-019-00181-7.
[26] Bruneau M, Bhagwagar T. Seismic retrofit of flexible steel frames using thin infill panels. Eng Struct 2002;24:443–53. https://doi.org/10.1016/S0141-0296(01)00111-0.
[27] Hosseini Hashemi B, Behnamfar F, Ranjbaran F. Effects of local eccentricity of connecting braces on nonlinear behavior of steel concentric brace connections. J Seismol Earthq Eng 2008;10:91–9.
[28] Kheyroddin A, Gholhaki M, Pachideh G. Seismic evaluation of reinforced concrete moment frames retrofitted with steel braces using IDA and pushover methods in the near-fault field. J Rehabil Civ Eng 2019;7:159–73.
[29] Bazzaz M, Kafi MA, Kheyroddin A, Andalib Z, Esmaeili H. Evaluating the seismic performance of off-centre bracing system with circular element in optimum place. Int J Steel Struct 2014;14. https://doi.org/10.1007/s13296-014-2009-x.
[30] Andalib Z, Kafi MA, Kheyroddin A, Bazzaz M. Experimental investigation of the ductility and performance of steel rings constructed from plates. J Constr Steel Res 2014;103. https://doi.org/10.1016/j.jcsr.2014.07.016.
[31] Boadi-Danquah E, MacLachlan D, Fadden M. Cyclic Performance of a Lightweight Rapidly Constructible and Reconfigurable Modular Steel Floor Diaphragm. Key Eng Mater 2018;763:541–8. https://doi.org/10.4028/www.scientific.net/KEM.763.541.
[32] Deihim M, Kafi MA. A parametric study into the new design of a steel energy-absorbing connection. Eng Struct 2017;145:22–33.
[33] Khonsari S V, England GL, Parvinnia SMH. Innovative structural joint to increase safety during earthquakes. Proc. 13th World Conf. Earthq. Eng. (13WCEE), Pap., 2004, p. 1–6.
[34] (ATC) USATC. ATC 24: Guidelines for Cyclic Seismic Testing of Components of Steel Structures. California: Applied Technology Council; 1992. | ||
|
آمار تعداد مشاهده مقاله: 291 تعداد دریافت فایل اصل مقاله: 279 |
||