Seismic Collapse Resistance Capacity of Buckling-Restrained Braced Steel Frame with Ductility-Enhanced Joints

doi:10.12141/j.issn.1000-565X.210632

Journal of South China University of Technology(Natural Science Edition) ›› 2022, Vol. 50 ›› Issue (11): 107-114.doi: 10.12141/j.issn.1000-565X.210632

Special Issue: 2022年土木建筑工程

• Architecture & Civil Engineering • Previous Articles Next Articles

Seismic Collapse Resistance Capacity of Buckling-Restrained Braced Steel Frame with Ductility-Enhanced Joints

HE Jinzhou¹ LÜ Dagang^1,^2,³ JIA Mingming^1,^2,³

^1.School of Civil Engineering，Harbin Institute of Technology，Harbin 150090，Heilongjiang，China
^2.Key Lab of Structural Dynamic Behavior and Control of the Ministry of Education，Harbin Institute of Technology，Harbin 150090，Heilongjiang，China
^3.Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology，Harbin Institute of Technology，Harbin 150090，Heilongjiang，China

Received:2021-10-08 Online:2022-11-25 Published:2022-03-25
Contact: 贾明明（1978-），男，博士，副教授，主要从事结构抗震和结构可靠度研究。 E-mail:jiamingming@hit.edu.cn
About author:何金洲（1983-），男，博士生，主要从事屈曲约束支撑钢框架结构、地震工程等研究.E-mail:jzhgd2022@163.com.
Supported by:
the National Natural Science Foundation of China(51978220)

Abstract

Abstract:

Under the actions of earthquakes, the damage distribution of Buckling-Restrained Braced Steel Frames (BRBFs) is usually not uniform. Once the beam-column joints or other components of BRBFs are destroyed, the high ductility of the buckling-restrained braces cannot be fully achieved. The local failure and the weak stories of BRBFs would cause the structures to collapse. Therefore, this paper proposed the scheme of two improved ductile beam-column joints and applied it in the BRBFs to achieve the high ductility by coordinating the global ductility of the structure and the local ductility of the ductile joints and members. Firstly, the finite element models of the BRBFs with ductility-enhanced joints were established, and the accuracy of the numerical model was verified. Secondly, the incremental dynamic analysis method was used to analyze the influence of the global ductility on the seismic collapse capacity resistance of the structural systems. Finally, the seismic collapse capacity of the structural system was evaluated based on the Collapse Margin Ratio (CMR). The results show that, compared to the BRBFs with rigid connections, the global ductility of BRBFs with the Reduced Beam Section (RBS) connections and the Top-Flange Beam Splice (TFBS) connections increase gradually. The CMR and the seismic collapse resistance capacity of BRBFs are improved with the increment of structural global ductility.

Key words: ductility, RBS connection, TFBS connection, buckling-restrained brace, collapse margin ratio

CLC Number:

TU352.1+1

HE Jinzhou, LÜ Dagang, JIA Mingming. Seismic Collapse Resistance Capacity of Buckling-Restrained Braced Steel Frame with Ductility-Enhanced Joints[J]. Journal of South China University of Technology(Natural Science Edition), 2022, 50(11): 107-114.

Figures/Tables 13

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

Fig.12

Tab.1

References 19

1	师梦尘．翼缘削弱型端板连接节点受力性能研究［D］．西安：西安建筑科技大学，2014.
2	董建莉，王燕．延性节点空间钢框架在低周反复荷载作用下的滞回性能研究［J］．工业建筑，2015，45（12）：163-170.
	DONG Jianli， WANG Yan ．Study on hysteretic performance of space steel frame with ductile joints under low cyclic loading ［J］．Industrial Construction，2015，45（12）：163-170.
3	全凯．新型翼缘削弱型弱轴连接节点滞回性能研究［D］.西安：长安大学，2017.
4	戴永超．带可更换梁段的翼缘削弱型节点滞回性能研究［D］．西安：长安大学，2021.
5	DEYLAMI A， TABAR A M ．Promotion of cyclic behavior of reduced beam section connections restraining beam web to local buckling ［J］．Thin-Walled Structures，2013，73（73）：112-120.
6	PRINZ G S， RICHARDS P W ．Demands on reduced beam section connections with out-of-plane skew ［J］．Journal of Structural Engineering，2016，142（1）：04015095.
7	LI R， SAMALI B， TAO Z，et al ．Cyclic behaviour of composite joints with reduced beam sections ［J］．Engineering Structures，2017，136：329-344.
8	GHADERI M， GERAMI M， VANDANI R ．A comparison of seismic low cycle fatigue and extremely low cycle fatigue on steel moment frames with reduced beam section connection （RBS）［J］．International Journal of Fatigue，2019，119：139-149.
9	HORTON T A， HAJIRASOULIHA I， DAVISON B，et al ．More efficient design of reduced beam sections （RBS） for maximum seismic performance ［J］．Journal of Constructional Steel Research，2021，183：106728.
10	PRINZ G S，COY B， RICHARDS P W ．Experimental and numerical investigation of ductile top-flange beam splices for improved buckling-restrained braced frame behavior ［J］．Journal of Structural Engineering，2014，140（9）：04014052/1-9.
11	PRINZ G S， RICHARDS P W ．Seismic Performance of Buckling-Restrained Braced Frames with Eccentric Configurations ［J］．Journal of Structural Engineering，2012，138（3）：345-353.
12	GHOWSI A F， SAHOO D R ．Seismic Performance of Buckling-restrained Braced Frames with Varying Beam-column Connections ［J］．International Journal of Steel Structures，2013，13（4）：607-621.
13	孙良君．翼缘削弱型节点钢框架结构抗震性能研究［D］.大连：大连理工大学，2016.
14	董建莉．新型延性节点钢框架抗震性能研究［D］．青岛：青岛理工大学，2016.
15	李坤．一种新型可修复装配式钢结构节点力学性能研究［D］．西安：长安大学，2020.
16	OHTORI Y， CHRISTENSON R E， SPENCER B F，et al ．Benchmark control problems for seismically excited nonlinear buildings ［J］．Journal of Engineering Mechanics，2004，130（4）：366-385.
17	钢结构设计标准：［S］.
18	FEMA ．Quantification of building seismic performance factors （FEMA P695）［R］．Washington：Federal Emergency Management Agency，2009.
19	PEER ．PEER NGA database ［R］．California：University of California，Berkeley，2013.

结构	结构整体延性系数μ	倒塌易损性函数中位值/g	S_a，_T_1，大震/g	倒塌裕度比
BRBF	3.49	3.00	0.560	5.33
BRBF-RBSS	3.84	3.66	0.558	6.55
BRBF-RBSM	3.93	3.98	0.555	7.17
BRBF-RBSL	4.52	3.84	0.552	6.96
BRBF-TFBS	6.23	3.76	0.540	6.96

[1]	Zheng Xin-zhi Cai Jian Zheng Xin-hua. Axial Compressive Behavior of Stiffened Square Concrete-Filled Steel Tubular Stub Columns Under Axial Load [J]. Journal of South China University of Technology (Natural Science Edition), 2013, 41(10): 126-134.
[2]	Zhou Jing Fang Xiao-dan. Analysis of Relationship Between Local and Global Ductility Demands of Multi-Rise Structures [J]. Journal of South China University of Technology (Natural Science Edition), 2011, 39(12): 132-137.
[3]	Cai Jian Xu Xue-feng . Curvature Ductility of Reinforced Concrete Column with L-Shaped Crosse Section [J]. Journal of South China University of Technology (Natural Science Edition), 2009, 37(6): 136-141，146.
[4]	Long Yue-ling Cai Jian. Eccentric Compressive Behavior of Rectangular Concrete-Filled Steel Tube Columns with Binding Bars [J]. Journal of South China University of Technology (Natural Science Edition), 2008, 36(12): 21-27.
[5]	Chen Pei-lin Zhou Jin-chuan Zhang Xiao-ning He Yan. Experimental Investigation into Asphalt Binder by Force-Ductility Test [J]. Journal of South China University of Technology (Natural Science Edition), 2006, 34(4): 38-42.

Seismic Collapse Resistance Capacity of Buckling-Restrained Braced Steel Frame with Ductility-Enhanced Joints

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 13

References 19

Related Articles 5

Recommended Articles

Metrics

Comments