梭形双重约束防屈曲支撑的整体稳定性设计方法

doi:10.13229/j.cnki.jdxbgxb.20240417

吉林大学学报(工学版) ›› 2025, Vol. 55 ›› Issue (11): 3521-3533.doi: 10.13229/j.cnki.jdxbgxb.20240417

• 车辆工程·机械工程 • 上一篇

梭形双重约束防屈曲支撑的整体稳定性设计方法

史俊^1,²(),徐略勤²,金双双²,贺洪滔²,周建庭²(),柳杨青²

^1.宁波工程学院全省深海基础智能建造与运维重点实验室，宁波 315211
^2.重庆交通大学山区桥梁及隧道工程国家重点实验室，重庆 400074

收稿日期:2024-04-17 出版日期:2025-11-01 发布日期:2026-02-03
通讯作者: 周建庭 E-mail:shijuncqjtu@163.com;jtzhou@cqjtu.edu.cn
作者简介:史俊（1994-），男，博士研究生.研究方向：桥梁抗震与减隔震. E-mail： shijuncqjtu@163.com
基金资助:
广西重点研发计划(桂科AB22036007);重庆市技术创新与应用发展专项重点项目(CSTB2022TIAD-KPX0205);中国中铁重大课题（2022-重大-11）;宁波工程学院科研启动项目(ZX2025000122)

Global stability design method of shuttle-shaped double-restrained buckling-restrained brace

Jun SHI^1,²(),Lue-qin XU²,Shuang-shuang JIN²,Hong-tao HE²,Jian-ting ZHOU²(),Yang-qing LIU²

^1.Zhejiang Key Laboratory of Intelligent Construction and Operation & Maintenance for Deep-Sea Foundations，Ningbo University of Technology，Ningbo 315211，China
^2.State Key Laboratory of Mountain Bridge and Tunnel Engineering，Chongqing Jiaotong University，Chongqing 400074，China

Received:2024-04-17 Online:2025-11-01 Published:2026-02-03
Contact: Jian-ting ZHOU E-mail:shijuncqjtu@163.com;jtzhou@cqjtu.edu.cn

摘要/Abstract

摘要：

为研究新型梭形双重约束防屈曲支撑（SDR-BRB）的整体稳定性能及其设计方法，首先，采用平衡法推导了两端铰接的SDR-BRB弹性屈曲荷载和约束比计算公式；然后，考虑构件整体初始几何缺陷的影响，构建了SDR-BRB侧向变形和弯矩分布函数，并基于外围构件截面边缘纤维屈服准则，得到了SDR-BRB 3类约束比限值计算公式；在此基础上，建立了经试验验证的ABAQUS有限元模型，分别对其单调加载下的承载性能和往复加载下的滞回性能进行了弹塑性有限元数值分析；最后，结合理论推导与数值分析，提出了基于约束比限值的SDR-BRB整体稳定性的设计方法。结果表明：约束比对SDR-BRB的整体稳定性能、弹塑性承载性能和滞回性能影响显著；基于3类约束比限值，SDR-BRB可分为延迟屈曲构件、承载型BRB和耗能型BRB；本文提出的设计方法可准确预测SDR-BRB承载性能与滞回性能的屈曲行为，并具有良好的适用性，可将其作为SDR-BRB整体稳定设计的准则。

关键词: 结构加固, 梭形双重约束防屈曲支撑, 整体稳定性, 约束比限值, 承载性能, 滞回性能

Abstract:

To study the global stability and design method of a novel shuttle-shaped double-restrained buckling-restrained brace （SDR-BRB）， this article first uses the equilibrium method to derive the calculation formula for the elastic buckling load and the restraining ratio of SDR-BRB with hinged ends. Then， the distribution function of lateral deformation and bending moment of SDR-BRB is constructed considering the influence of global initial geometric imperfections， and based on the yielding criteria of the outmost fiber for the restraining member section， the calculation formula of the three types of the restraining ratio requirement of SDR-BRB is obtained. On this basis， the ABAQUS finite element model verified by experiments is established， and the elastic-plastic finite element numerical analysis of its load-carrying capacity under monotonic loading and hysteretic performance under cyclic loading is carried out respectively. Finally， the global stability design method of SDR-BRB based on the restraining ratio requirement is proposed. The results show that the restraining ratio has a significant effect on the global stability， load-carrying capacity， and hysteretic performance of SDR-BRB. Based on the three types of the restraining ratio requirement， SDR-BRB can be divided into delayed buckling member， load-carrying BRB， and energy-consuming BRB. The design method proposed in this article can accurately predict the buckling behavior of the load-carrying capacity and hysteretic performance of SDR-BRB， and has good applicability， which can be used as the global stability design criterion of SDR-BRB.

Key words: structural reinforcement, shuttle-shaped double-restrained buckling-restrained brace, global stability, restraining ratio requirement, load-carrying capacity, hysteretic performance

中图分类号:

U442.5

史俊,徐略勤,金双双,贺洪滔,周建庭,柳杨青. 梭形双重约束防屈曲支撑的整体稳定性设计方法[J]. 吉林大学学报(工学版), 2025, 55(11): 3521-3533.

Jun SHI,Lue-qin XU,Shuang-shuang JIN,Hong-tao HE,Jian-ting ZHOU,Yang-qing LIU. Global stability design method of shuttle-shaped double-restrained buckling-restrained brace[J]. Journal of Jilin University(Engineering and Technology Edition), 2025, 55(11): 3521-3533.

图/表 16

图1

图2

表1

图3

图4

图5

图6

表2

SDR-BRB轴向单调加载下的算例参数的几何尺寸 (mm)"

编号	l	d₁×t₁	d₂×t₂	γ	ζ	$ζ / ζ 1$	$ζ / ζ 2$	类型
SDR-10-ζ	10 000	120×20	140×8	0.20~0.36	0.81~1.13	0.67~0.97	0.32~0.49	失稳
	10 000	120×20	140×8	0.41~0.68	1.24~2.02	1.08~1.83	0.55~0.97	失稳
	10 000	120×20	140×8	0.72~0.87	2.15~2.72	1.96~2.52	1.04~1.35	稳定
SDR-15-ζ	15 000	150×25	180×13	0.38~0.53	0.84~1.11	0.72~0.97	0.36~0.50	失稳
	15 000	150×25	180×13	0.61~0.90	1.27~2.02	1.13~1.85	0.59~0.99	失稳
	15 000	150×25	180×13	0.93~1.09	2.11~2.64	1.94~2.46	1.04~1.33	稳定
SDR-20-ζ	20 000	200×30	240×18	0.26~0.38	0.87~1.11	0.75~0.98	0.38~0.50	失稳
	20 000	200×30	240×18	0.44~0.70	1.24~1.96	1.11~1.80	0.58~0.96	失稳
	20 000	200×30	240×18	0.74~0.90	2.09~2.67	1.93~2.50	1.03~1.36	稳定
SDR-25-ζ	25 000	250×35	300×23	0.17~0.29	0.85~1.10	0.74~0.97	0.37~0.50	失稳
	25 000	250×35	300×23	0.34~0.59	1.21~1.93	1.08~1.78	0.56~0.95	失稳
	25 000	250×35	300×23	0.64~0.79	2.10~2.68	1.94~2.51	1.05~1.37	稳定

表2

图7

图8

图9

表3

SDR-BRB轴向往复加载下的算例参数的几何尺寸 (mm)"

编号	l	d₁×t₁	d₂×t₂	γ	ζ	$ζ / ζ 2$	$ζ / ζ 3$	类型
SDR-10-ζ	10 000	120×20	140×8	0.32~0.67	1.04~1.98	0.44~0.95	0.37~0.81	失稳
	10 000	120×20	140×8	0.71~0.78	2.12~2.35	1.02~1.15	0.87~0.99	失稳
	10 000	120×20	140×8	0.81~0.96	2.48~3.11	1.22~1.56	1.05~1.36	稳定
SDR-15-ζ	15 000	150×25	180×13	0.47~0.87	1.00~1.93	0.44~0.94	0.37~0.81	失稳
	15 000	150×25	180×13	0.92~0.99	2.08~2.30	1.02~1.14	0.88~0.99	失稳
	15 000	150×25	180×13	1.04~1.21	2.46~3.09	1.23~1.57	1.07~1.37	稳定
SDR-20-ζ	20 000	200×30	240×18	0.32~0.69	0.99~1.93	0.44~0.94	0.37~0.81	失稳
	20 000	200×30	240×18	0.73~0.79	2.05~2.26	1.02~1.13	0.88~0.98	失稳
	20 000	200×30	240×18	0.85~0.99	2.48~3.05	1.25~1.56	1.08~1.36	稳定
SDR-25-ζ	25 000	250×35	300×23	0.23~0.59	0.97~1.93	0.43~0.95	0.36~0.82	失稳
	25 000	250×35	300×23	0.63~0.69	2.06~2.28	1.03~1.15	0.89~0.99	失稳
	25 000	250×35	300×23	0.74~0.87	2.48~3.03	1.25~1.56	1.09~1.36	稳定

表3

图10

图11

图12

图13

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梭形双重约束防屈曲支撑的整体稳定性设计方法

Global stability design method of shuttle-shaped double-restrained buckling-restrained brace

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编号	l	d₁×t₁	d₂×t₂	d_e1	d_e2	γ	l₁	λ	t_e	ζ
1	10 000	120×20	140×8	200	300	0.5	5 000	0.5	12	1.47
2	20 000	200×30	240×18	350	525	0.5	10 000	0.5	21	1.39
3	30 000	300×40	350×23	500	750	0.5	15 000	0.5	30	1.27