The Parametric Investigation of Cyclic Performance of the Buckling Restrained Braces with Different Cores

Document Type : Research Paper

Authors

1 Assistant Professor, Department of Civil Engineering, University of Eyvanekey, Semnan, Iran

2 Department of Civil Engineering, Engineering Faculty, Mashhad Branch, Islamic Azad University, Mashhad, Iran

3 Department of Civil Engineering, Engineering Faculty, Sistan and Baluchestan University, zahedan, Iran

Abstract

The Buckling Restrained Brace (BRB) is a type of high energy dissipation damper. The damper includes a thin steel core, a concrete cover designed to maintain the steel core and prevent it from buckling under axial compression, and a middle layer that prevents unwanted interactions between the steel brace core and the concrete sheath. Braced frames that use the BRB are known as buckling restrained braced frames, which have many advantages over conventional braced frames. In this study, the effect of geometric shape and number of holes on the core of the buckling restrained brace has been investigated by numerical simulation with finite element method. Six brace core types with rectangular and circular shaped with equal area with and without holes. The holes are placed one, three and five with full details in ABAQUS software and results in terms of failure modes, severity of damage and Hysteresis curve have been studied. To verify the modeling method and assumptions, an experimental sample is verified. The results of this study indicate the significant effect of more holes and the use of circular rather than rectangular holes on the cyclic performance of buckling restrained brace.

Keywords

References

[1] – یاراحمدی، ح. و سروش نیا، س.، 1390، بررسی ضریب رفتار قاب‌های مهاربندی شده با بادبند کمانش تاب زانویی، اولین کنفرانس بین المللی ساخت و ساز شهری در مجاورت گسل­های فعال، تبریز، ایران.
[2]- Tremblay, R., Degrange, G., Blouin, J., 1999, Seismic rehabilitation of a four-storey building with a stiffened bracing system, Proc., 8th Canadian Conference on Earthquake Engineering, Vancouver, B.C. Canadian Association of Earthquake Engineering, Vancouver, B.C., 549-554.
[3]- Jia, M., Guo, L. & Lu, D., 2014, Performance testing and comparison of buckling-restrained braces with H and crisscross cross section unrestrained segments, International Journal of Steel Structure, 14, 745–753. 
[4]- Clark P, Aiken I, Tajirian F, Kasai K, Ko E, Kimura I., 1999, Design procedures for buildings incorporating hysteretic damping devices, Design Procedures for Buildings Incorporating Hysteretic Damping Devices, 1, 1, 1-21.
[5]- Yashino, T.,  Karino, Y., 1971, Experimental Study on Shear Wall with Braces, Architectural Institute of Japan, Structural Engineering, 11, 403-404, (in Japanese).
[6]- Yu, Y. J., 2012, A Type of Buckling Restrained Brace for Convenient Inspection and Replacement, Journal of structural engineering, 12, 20-35.
[7]- Hoveidae, N., Rafezy, B, 2012, Overall Buckling Behavior of All Steel Buckling Restrained Braces, Constructional Steel Research, 79, 3, 151-158.
[8]- Piedrafita, D. Cahis, X. Simon, E., 2013, A New Modular Buckling Restrained Brace for Seismic Resistant Buildings, Engineering Structures, 56, 2, 1967-1975.
[9]- Quan, G., Zona, A., Peng, Yi, Dall'Asta, A., 2014, Effect of buckling-restrained brace model parameters on seismic structural response, Constructional Steel Research, 98, 4, 100-113.
[10]- Zhao, J., Wu, B., Wei, L., Jinping, O., 2014, A practical and unified global stability design method of buckling-restrained braces: Discussion on pinned connection, Journal of Constructional Steel Research, 95, 106-115.
]11[- اشتری، پ.، بیگدلی، ح.، قمی، ح.، 1394، بررسی رفتار لرزه­ای بادبندهای مقاوم در برابر کمانش  BRBبا هسته آلیاژ حافظه­دار شکلی SMA، دهمین کنگره بین المللی مهندسی عمران، دانشگاه شیراز، ایران.
[12]-Peng, P., Li, W., Xin, N., Kailai, D., Jiangbo, S., 2016, Seismic performance of a reinforced concrete frame equipped with a double-stage yield buckling restrained brace, The Structural Design of Tall and Specia, 26, 2, 153-170.
[13]- Quan, Ch., Chun-Lin, W., Shaoping, M., Bin, Z., 2016, Effect of the unbonding materials on the mechanic behavior of all-steel buckling-restrained braces, Engineering Structures, 111, 478-493.
[14]- Canxing, Q., Yichen. Z., Han. L., Bing Q., Hetao, H., Li, T., 2018, Seismic performance of Concentrically Braced Frames with non-buckling braces, Engineering Structures, 154, 1, 93-102.
[15]-Abaqus, Abaqus/standard., 2012, Version 6.11, ABAQUS, Inc., Pawtucket, R.I.
New Approaches in Civil Engineering
Volume 4, Issue 2
September 2020
Pages 1-22

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