Advanced Steel Construction

Vol. 19, No. 4, pp. 375-382 (2023)





Feng Xu 1, *, Zhe Yuan 1, Na Liu 1, Zhen-Xing Li 1, 2, Lian-Guang Jia 1 and Wei Xu 1

1 School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China

2 China Southern Airlines Co., Ltd., Shenyang Maintenance Base, Shenyang 110169, China

*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)

Received: 27 November 2022; Revised: 29 June 2023; Accepted: 27 August 2023




View Article   Export Citation: Plain Text | RIS | Endnote


This paper evaluates the seismic performance of conventional steel composite beam-column rigid joints, and a novel buckling restrained knee-braced joint (BRKBJ), considering the impact of the floor slab. A series of quasi-static comparative tests were conducted to analyze the failure mode, load-bearing capacity, hysteresis performance, and ductility of both types of joints. Our findings revealed that the hysteretic curve of the BRKBJ exhibits a robust and shuttle-like shape, suggesting an adequate energy dissipation performance. However, its yield displacement is relatively small. Conversely, there is a marginal increase in the yield displacement of the beam and column, along with a significant rise in the yield load when compared to the rigid joint. The ultimate load-bearing capacity increases by 32.6%, and the displacement under this ultimate load decreases by 19.2%. Furthermore, the equivalent viscous damping coefficient and the ductility coefficient see an increase of 14.5% and 21.6%, respectively. When damage occurs to the joint, the buckling restrained knee brace helps shift the plastic hinge outwards, safeguarding the beam-column joint. It was also observed that the impact of the buckling restrained knee brace on the hysteretic behavior of the composite beam-column rigid connection at the beam end during the tension phase is notably more than during the compression phase. The presence of a floor has minimal effect on the BRKBJ.



Steel structure, Combined beam-column joint, Buckling restrained knee brace, Quasi-static test, Seismic performance


[1] Hsu H L, Li Z C. Seismic performance of steel frames with controlled buckling mechanisms in knee braces[J]. Journal of Constructional Steel Research, 2015, 107: 50-60.

[2] Junda E, Leelataviwat S, Doung P. Cyclic testing and performance evaluation of buckling-restrained knee-braced frames[J]. Journal of Constructional Steel Research, 2018, 148: 154-164.

[3] Yin Z Z, Feng D Z, Yang B, et al. The seismic performance of double tube buckling restrained brace with cast steel connectors[J]. Advanced Steel Construction, 2022, 18(1): 436-445.

[4] Chen Z Y, Ge H B, Usami T. Analysis and design of steel bridge structures with energy absorption members[J]. Advanced Steel Construction, 2008, 4(3): 173-183.

[5] Zhou D M. Influential analysis of changing parameters of the knee brace on seismic performance of steel story-adding structure[J]. Engineering Construction, 2017,494:1-7. (in Chinese))

[6] Zhou D F. Analysis on seismic performance of the knee brace in steel story- adding structure[D]. Shandong. Qingdao Technological University, 2016. (in Chinese))

[7] Conti M A, Mastrandrea L, Piluso V. Plastic design and seismic response of knee braced frames[J]. Advanced Steel Construction, 2009, 5(3): 343-366.

[8] Li Q S, Huang Z, Chen L Z. Elastic-plastic analysis of braced frame system with inclined corner bracing [J]. Industrial Buildings, 2005,35 ( 5 ) : 85-87.

[9] JI K H.Study on seismic behavior of steel frame with corner braces [D].Nanjing University of Technology, 2006.

[10] H.-L.Hsu,Z.-C.Li. Seismic performance of steel frames with controlled buckling mechanisms in knee braces[J]. Journal of Constructional Steel Research, 2015,(107):50-60.

[11] Jia M M, Li L, Hong C, et al. Experiment of hysteretic behavior and stability performance of buckling-restarined braced composite frame[J]. Advanced Steel Construction, 2021, 17(2): 149-157.

[12] Xie L, Wu J, Shi J, et al. Influence of the core-restrainer clearance on the mechanical performance of sandwich buckling-restrained braces[J]. Advanced Steel Construction, 2020, 16(1): 37-46.

[13] Xu F, Wang X Z. Seismic Performance for Steel Frames with Different Layouts of Knee Brace[C]. Proceedings of The 2016 International Conference on Architectural Engineering and Civil Engineering, 2016(72); 624-627.

[14] Xu F, Gong T B, Jia L G. Seismic performance of steel frame beam-column connection with single-braced energy dissipative joint[C]. National Forum of Civil Engineering Graduates in Green Construction and Industrialization, 2015. 12. (in Chinese))

[15] Gong T B. Study on seismic performance of buckling-constrained concrete braced steel frame[D]. Laoning, Shenyang Jianzhu Univesity, 2017. 3. (in Chinese))

[16] WANG Yan, FENG Shuang, WANG Yutian. Experimental study on hysteretic behavior for rigid-reinforced connections[J]. China Civil Engineering Journal, 2011, 4(5): 57-68. (in Chinese))

[17] ZHAO Junxian, YU Haichao, PAN Yi. Seismic performance of sliding gusset connections in buckling-restrained braced steel frame[J]. Journal of Building Structures, 2019, 40(2); 117-127. (in Chinese)

[18] Jia B, Zhang Q L, Luo X Q. Study on hysteretic behavior of aluminum alloy energy dissipation braces[J]. Journal of Building Structures, 2015, 36(08): 49-57. (in Chinese))

[19] Jinkoo Kim, Youngill Seo. Seismic design of steel structures with buckling-restrained knee braces [J]. Journal of Constructional Steel Research, 2003.59(12): 1477-1497.

[20] Amador Tera´n-Gilmore, Jorge Ruiz-Garcı´. Comparative seismic performance of steel frames retrofitted with buckling-restrained braces through the application of Force-Based and Displacement-Based approaches [J]. Soil Dynamics and Earthquake Engineering, 2010.

[21] Qu Z ,Xie J Z, Wang T, Shoichi Kishiki. Seismic retrofit design method for RC buildings using buckling-restrained braces and steel frames [J]. Engineering Structures, 2017. 139: 1-14.

[22] Hamdy Abou-Elfath, Mostafa Ramadan, Fozeya Omar Alkanai. Upgrading the seismic capacity of existing RC buildings using buckling restrained braces [J]. Alexandria Engineering Journal, 2017. 56(2): 251-262.

[23] Fatih Sutcu, Toru Takeuchi, Ryota Matsui. Seismic retrofit design method for RC buildings using buckling restrained braces and steel frames [J]. Journal of Constructional Steel Research, 2014. 101: 304-313.