Research on the Hysteretic Performance of Sectional Control-Type Steel Braces

XIN Li; LI Jiake; ZHANG Long; LIAN Ming; CHENG Qianqian; SHI Shengzhi

doi:10.3724/j.gyjzG24112103

Volume 56 Issue 6

Jun. 2026

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XIN Li, LI Jiake, ZHANG Long, LIAN Ming, CHENG Qianqian, SHI Shengzhi. Research on the Hysteretic Performance of Sectional Control-Type Steel Braces[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(6): 107-118. doi: 10.3724/j.gyjzG24112103

Citation:

XIN Li, LI Jiake, ZHANG Long, LIAN Ming, CHENG Qianqian, SHI Shengzhi. Research on the Hysteretic Performance of Sectional Control-Type Steel Braces[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(6): 107-118. doi: 10.3724/j.gyjzG24112103

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Research on the Hysteretic Performance of Sectional Control-Type Steel Braces

doi: 10.3724/j.gyjzG24112103

1. China Northwest Building Design and Research Institute Co., Ltd., Xi'an 710018, China;
2. School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
3. Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China

Received Date: 2024-11-21
Available Online: 2026-07-06

Abstract

Abstract

An innovative sectional control-type steel brace （SCTS） was developed to fully utilize the advantages of traditional steel braces， such as their high stiffness， while effectively enhancing deformation and hysteretic performance， and addressing the construction inconveniences associated with traditional buckling-restrained braces. A numerical model of the SCTS was established adopting ABAQUS finite element software， and its accuracy was verified through a quasi-static test. The hysteretic performance of the SCTS was investigated in detail and compared with that of a traditional steel brace. A parametric study was conducted to analyze the influence of initial imperfection， length of the energy dissipation section， cross-sectional dimensions of the energy dissipation section， and cross-sectional dimensions of the elastic section on the hysteretic performance of the SCTS. The results showed that the SCTS exhibited excellent deformation capacity and hysteretic performance. The performance of the SCTS was not sensitive to variations in initial imperfection. As the length of the energy dissipation section decreased， the bearing capacity， stiffness， and energy dissipation capacity increased. However， an excessively short energy dissipation section could lead to premature failure of the SCTS. Therefore， it is recommended that the ratio of the combined length of the two end energy dissipation sections to the total length should be between 0.3 and 0.4. The hysteretic performance of the SCTS was most affectd by the cross-sectional dimensions of the energy dissipation section. Increasing these dimensions significantly enhanced the bearing capacity， stiffness， and energy dissipation capacity. Conversely， an overly large cross-section for the elastic section could lead to premature failure or stiffness degradation. Thus， the recommended ratio of the cross-sectional area of the energy dissipation section to that of the elastic section should be between 0.3 and 0.4.
- sectional control,
- innovative brace,
- finite element analysis,
- hysteretic performance,
- parametric analysis

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References(24)

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