Abstract
Hysteretic performance of buckling restrained braces (BRBs) having various core materials, namely, steel and aluminum alloy and with various end connections are numerically investigated. As a computational tool, nonlinear finite element analyses (FEAs) are performed to better model the hysteretic behavior. For the simulation, various aspects such as 1) stress — strain relationship including the strain hardening effect 2) von Mises yield criterion 3) contact surface parameters between the core metal and surrounding high strength grout and 4) friction are defined. Experimental results from near-full scale cyclic tests on two steel core BRBs having steel casing as a restraining environment (named as BRB-SC4 and BRB-SC5) and an aluminum alloy core & aluminum alloy casing tube (named as BRB-AC3) are used in the analyses. All cyclically tested specimens have been designed according to AISC Seismic Provisions. Numerical results obtained from 3D models developed in ANSYS-Workbench give satisfactory response parameters when compared with the experimental ones (e.g., hysteretic curves, dissipated energies). Further, a convergence analysis regarding element numbers in the developed model is conducted for each BRB specimen. Finally, key issues that influence the hysteretic modeling of BRBs are identified.
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References
AISC, ANSI/AISC 341-10 (2010). Seismic provisions for structural steel buildings, ANSI/AISC 341–10, American Institute of Steel Construction, Inc., Chicago, IL.
ANSYS-Workbench (2009). Products release 12.0.1, ANSYS, Inc., Canonsburg, PA, USA.
AlHamaydeh, M., Abed, F., and Mustapha, A. (2016). “Key parameters influencing performance and failure modes for BRBs using nonlinear FEA.” J. Constr. Steel Res., Vol. 116, pp. 1–18, DOI: https://doi.org/10.1016/j.jcsr.2015.08.038.
Atasever, K., Celik, O. C., and Yuksel, E. (2018). “Development and cyclic behavior of U-shaped steel dampers with perforated and nonparallel arm configurations.” Int. J. Steel Struct., Vol. 18, No. 5, pp. 1741–1753, DOI: https://doi.org/10.1007/s13296-018-0074-2.
Avci-Karatas, C. (2013). Design, fabrication, and cyclic behavior of steel and aluminum alloy core buckling restrained braces (BRBs), PhD Dissertation, Istanbul Technical University (ITU), Istanbul, Turkey (in Turkish).
Avci-Karatas, C., Celik, O. C., and Yalcin, C. (2018). “Experimental investigation of aluminum alloy and steel core buckling restrained braces (BRBs).” Int. J. Steel Struct., Vol. 18, No. 2, pp. 650–673, DOI: https://doi.org/10.1007/s13296-018-0025-y.
Beddoes, J. and Bibby, M. (1999). Principles of metal manufacturing processes, Elsevier Butterworth-Heinemann, Burlington, CA.
Berman, J. W. and Bruneau, M. (2009). “Cyclic testing of a buckling restrained braced frame with unconstrained gusset connections.” J. Struct. Eng., Vol. 135, No. 12, pp. 1499–1510, DOI: https://doi.org/10.1061/(ASCE)ST.1943-541X.0000078.
Black, C. J., Makris, N., and Aiken, I. D. (2004). “Component testing, seismic evaluation and characterization of buckling restrained braces.” J. Struct. Eng., Vol. 130, No. 6, pp. 880–894, DOI: https://doi.org/10.1061/(ASCE)0733-9445(2004)130:6(880).
Celik, O. C. and Bruneau, M. (2007). Seismic behavior of bidirectional-resistant ductile end diaphragms with unbonded braces in straight or skewed steel bridges, Rep. MCEER-07–0003, Multidisciplinary Center for Earthquake Engineering Research, Buffalo, NY, USA.
Celik, O. C. and Bruneau, M. (2009). “Seismic behavior of bidirectional-resistant ductile end diaphragms with buckling restrained braces in straight steel bridges.” Eng. Struct., Vol. 31, No. 2, pp. 380–393, DOI: https://doi.org/10.1016/j.engstruct.2008.08.013.
Celik, O. C. and Bruneau, M. (2011). “Skewed slab-on-girder steel bridge superstructures with bidirectional ductile end diaphragms.” J. Bridge Eng., Vol. 16, No. 2, pp. 207–218, DOI: https://doi.org/10.1061/(ASCE)BE.1943-5592.0000141.
Chen, Q., Wang, C. L., Meng, S., and Zeng, B. (2016). “Effect of the unbonding materials on the mechanic behavior of all-steel buckling restrained braces.” Eng. Struct., Vol. 111, pp. 478–493, DOI: https://doi.org/10.1016/j.engstruct.2015.12.030.
Chou, C. C. and Chen, S. Y. (2010). “Subassemblage tests and finite element analyses of sandwiched buckling-restrained braces.” Eng. Struct., Vol. 32, pp. 2108–2121, DOI: https://doi.org/10.1016/j.engstruct.2010.03.014.
CimatronE version 10. (2012). Cimatron group, cimatron regional distrubutor, TEKYAZ Software for Machinery, Istanbul, Turkey.
Fahnestock, L. A., Sause, R., and Ricles, J. M. (2007). “Seismic response and performance of buckling-restrained braced frames.” J. Struct. Eng., Vol. 133, No. 9, pp. 1195–1204, DOI: https://doi.org/10.1061/(ASCE)0733-9445(2007)133:9(1195).
Haydaroglu, C. and Celik, O. C. (2012). “Experimental investigation of partially CFRP wrapped steel HSS braces for seismic performance improvement.” 15 th World Conference on Earthquake Engineering, Lisbon, Portugal.
Hollomon, J. H. (1945). “Tensile deformation.” Transactions of the Metallurgical Society of AIME, Vol. 162, pp. 268–290.
Hoveidae, N. and Rafezy, B. (2015). “Local buckling behavior of core plate in all-steel buckling restrained braces.” Int. J. Steel Struct., Vol. 15, No. 2, pp. 249–260, DOI: https://doi.org/10.1007/s13296-015-6001-x.
Merritt, S., Uang, C. M., and Benzoni, G. (2003). Subassemblage testing of star seismic buckling-restrained braces, Rep. TR-2003/04, Dept. University of California, La Jolla, CA, USA.
Ragni, L., Zona, A., and Dall’Asta, A. (2011). “Analytical expressions for preliminary design of dissipative bracing systems in steel frames.” J. Constr. Steel Res., Vol. 67, No. 1, pp. 102–113, DOI: https://doi.org/10.1016/j.jcsr.2010.07.006.
Sabelli, R., Mahin, S., and Chang, C. (2003). “Seismic demands on steel braced frame buildings with buckling-restrained braces.” Eng. Struct., Vol. 25, No. 5, pp. 655–666, DOI: https://doi.org/10.1016/S0141-0296(02)00175-X.
Sutcu, F., Takeuchi, T., and Matsui, R. (2014). “Seismic retrofit design method for RC buildings using buckling-restrained braces and steel frames.” J. Constr. Steel Res., Vol. 101, No. 10, pp. 304–313, DOI: https://doi.org/10.1016/j.jcsr.2014.05.023.
Tabatabaei, S. A. R., Mirghaderi, S. R., and Hosseini, A. (2014). “Experimental and numerical developing of reduced length buckling-restrained braces.” Eng. Struct., Vol. 77, pp. 143–160, DOI: https://doi.org/10.1016/j.engstruct.2014.07.034.
Takeuchi, T., Hajjar, J. F., Matsui, R., Nishimoto, K., and Aiken, I. D. (2010). “Local buckling restraint condition for core plates in buckling restrained braces.” J. Constr. Steel Res., Vol. 66, No. 2, pp. 139–149, DOI: https://doi.org/10.1016/j.jcsr.2009.09.002.
Takeuchi, T., Hajjar, J. F., Matsui, R., Nishimoto, K., and Aiken, I. D. (2012). “Effect of local buckling core plate restraint in buckling restrained braces.” Eng. Struct., Vol. 44, pp. 304–311, DOI: https://doi.org/10.1016/j.engstruct.2012.05.026.
Takeuchi, T. and Wada, A. (2017). Buckling-restrained braces and applications, The Japan Society of Seismic Isolation (JSSI), Tokyo, Japan.
Tremblay, R., Lacerte, M., and Christopoulos, C. (2008). “Seismic response of multistory buildings with self-centering energy dissipative steel braces.” J. Struct. Eng., Vol. 134, No. 1, pp. 108–120, DOI: https://doi.org/10.1061/(ASCE)0733-9445(2008)134:1(108).
Usami, T., Wang, C. L., and Funayama, J. (2012). “Developing highperformance aluminum alloy buckling restrained braces based on series of low-cycle fatigue tests.” Earth. Eng. Struct. Dyn., Vol. 41, No. 4, pp. 643–661, DOI: https://doi.org/10.1002/eqe.1149.
Wang, C. L., Usami, T., and Funayama, J. (2012). “Evaluating the influence of stoppers on the low-cycle fatigue properties of highperformance buckling-restrained braces.” Eng. Struct., Vol. 41, pp. 167–176, DOI: https://doi.org/10.1016/j.engstruct.2012.03.040.
Wu, B., Lu, J., Mei, Y., and Zhang, J. (2017). “Buckling mechanism and global stability design method of buckling-restrained braces.” J Constr. Steel Res., Vol. 138, pp. 473–487, DOI: https://doi.org/10.1016/j.jcsr.2017.07.023.
Zona, A. and Dall’Asta, A. (2012). “Elastoplastic model for steel buckling-restrained braces.” J. Constr. Steel Res., Vol. 68, pp. 118–125, DOI: https://doi.org/10.1016/j.jcsr.2011.07.017.
Acknowledgements
The authors acknowledge the supports by the Scientific and Technological Research Council of Turkey (TUBITAK, Project No: 110M776) and the Istanbul Technical University Research Projects Unit (ITU-BAP, Project No: 33459).
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Avci-Karatas, C., Celik, O.C. & Ozmen Eruslu, S. Modeling of Buckling Restrained Braces (BRBs) using Full-Scale Experimental Data. KSCE J Civ Eng 23, 4431–4444 (2019). https://doi.org/10.1007/s12205-019-2430-y
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DOI: https://doi.org/10.1007/s12205-019-2430-y