屈曲约束支撑与自复位支撑-框架结构抗震韧性评估对比研究
Comparative Study on Seismic Resilience Assessment of Buckling-Restrained Braced and Self-Centering Braced Steel Frame Structures
地震灾害对城市社会经济影响显著,传统抗震设计难以满足现代建筑抗震韧性需求,因此建筑抗震韧性受到广泛关注,而自复位支撑作为一种新型抗震构件,其抗震韧性优势亟待量化研究。本文基于《建筑抗震韧性评价标准》(GB/T 38591—2020),对屈曲约束支撑(BRB)钢框架建筑和自复位支撑钢框架建筑进行抗震韧性评估及对比。结果表明,两种结构的抗震韧性评级均为一星。自复位支撑结构在控制残余位移角和最大层间位移角方面表现更优,BRB结构在控制峰值楼层加速度方面表现更佳。现行《标准》未能充分考虑残余位移对韧性的影响,建议未来标准改进时纳入相关指标。本研究为新型抗震结构体系的韧性评估提供了参考依据,对推动建筑抗震韧性标准的完善具有重要意义。
Earthquake disasters have a significant impact on urban socioeconomic systems, and the seismic resilience of buildings has garnered widespread attention. Traditional seismic-design approaches struggle to meet the resilience demands of modern structures. As a novel seismic component, self-centering braces require quantitative investigation to characterize their resilience advantages. Based on the Standard for Seismic Resilience Evaluation of Buildings (GB/T 38591—2020), this study conducts and compares seismic-resilience assessments of steel-frame buildings equipped with buckling-restrained braces (BRBs) and those with self-centering braces. Results indicate that both structural types receive a one-star resilience rating. The self-centering-braced structure demonstrates superior performance in controlling residual drift angle and maximum inter-story drift angle, while the BRB-braced structure excels in limiting peak floor acceleration. The current standard does not adequately account for the impact of residual displacement on resilience; it is recommended that future revisions incorporate related indexes. This study provides reference data for the resilience evaluation of novel seismic-resistant systems and carries important implications for the enhancement of building seismic-resilience standards.
| [1] |
国家统计局.中国统计年鉴2024[M].北京:中国统计出版社,2024. |
| [2] |
王啸霆,潘鹏,王涛,基于《建筑抗震韧性评价标准》的算例分析[J].建筑结构,2020,50(16):57-63. |
| [3] |
WANG Xiaoting,PAN Peng,WANG Tao,et al.Case study based on standard for seismic resilience assessment of buildings[J].Building Structure,2020,50(16):57-63.(in Chinese) |
| [4] |
FEMA.Seismic performance assessment of buildings,Volume 1,Methodology:FEMA P-58-2[S].Washington DC:Federal Emergency Management Agency,2012. |
| [5] |
FEMA.Seismic performance assessment of buildings Volume 2,Implementation Guide:FEMA P-58-2[S].Washington DC:Federal Emergency Management Agency,2012. |
| [6] |
ALMUFTI I,WILLFORD M.REDiTM Rating System:Resilience-based earthquake design initiative for the next generation of buildings[S].London:Up Group,2013. |
| [7] |
US.Resiliency Council.USRC Rating System-US Resiliency Council[EB/OL].2020.https://www.usrc.org/usrc-rating-system/. |
| [8] |
中华人民共和国国家市场监督管理总局,中华人民共和国国家标准化管理委员会.建筑抗震韧性评价标准:GB/T 38591—2020[S].北京:中国标准出版社,2020. |
| [9] |
State Administration for Market Regulation of China,Standardization Administration of China.Standard for seismic resilience assessment of buildings:GB/T 38591—2020[S].Beijing:Standards Press of China,2020. (in Chinese) |
| [10] |
DEL GOBBO G M,WILLIAMS M S,BLAKEBOROUGH A.Seismic performance assessment of eurocode 8-compliant concentric braced frame buildings using FEMA P-58[J].Engineering Structures,2018,155:192-208. |
| [11] |
DEL GOBBO G M,BLAKEBOROUGH A,WILLIAMS M S.Improving total-building seismic performance using linear fluid viscous dampers[J].Bulletin of Earthquake Engineering,2018,16(9):4249-4272. |
| [12] |
SILVA A,MACEDO L,MONTEIRO R,et al.Earthquake-induced loss assessment of steel buildings designed to eurocode 8[J].Engineering Structures,2020,208:110244-110259. |
| [13] |
JARRETT J A,JUDD J P,CHARNEY F A.Comparative evaluation of innovative and traditional seismic-resisting systems using the FEMA P-58 procedure[J].Journal of Constructional Steel Research,2015,105:107-118. |
| [14] |
吴继伟,梁兴文,朱汉波.FEMA P-58新一代建筑抗震性能评估方法[J].地震工程与工程振动,2015,35(3):37-43. |
| [15] |
WU Jiwei,LIANG Xingwen,ZHU Hanbo.FEMA P-58-next-generation performance assessment of buildings[J].Earthquake Engineering and Engineering Dynamics,2015,35(3):37-43.(in Chinese) |
| [16] |
任军宇,潘鹏,王涛,GB/T 38591—2020《建筑抗震韧性评价标准》解读[J].建筑结构学报,2021,42(1):48-56. |
| [17] |
REN Junyu,PAN Peng,WANG Tao,et al.Interpretation of GB/T 38591—2020 ‘Standard for seismic resilience assessment of buildings’[J].Journal of Building Structures,2021,42(1):48-56.(in Chinese) |
| [18] |
肖意,周颖,吴浩,GB/T 38591—2020《建筑抗震韧性评价标准》与国际相关标准对比研究[J].建筑结构学报,2021,42(7):194-202. |
| [19] |
XIAO Yi,ZHOU Ying,WU Hao,et al.Comparative study on GB/T 38591—2020 ‘Standard for seismic resilience assessment of buildings’and relevant international standards[J].Journal of Building Structures,2021,42(7):194-202. (in Chinese) |
| [20] |
周颖,申杰豪,肖意.自复位耗能支撑研究综述与展望[J].建筑结构学报,2021,42(10):1-13. |
| [21] |
ZHOU Ying,SHEN Jiehao,XIAO Yi.State-of-the-art on self-centering energy dissipative braces[J].Journal of Building Structures,2021,42(10):1-13.(in Chinese) |
| [22] |
郭彦林,童精中,周鹏.防屈曲支撑的型式、设计理论与应用研究进展[J].工程力学,2016,33(9):1-14. |
| [23] |
GUO Yanlin,TONG Jingzhong,ZHOU Peng.Research progress of buckling restrained braces:types,design methods and applications[J].Engineering Mechanics,2016,33(9):1-14.(in Chinese) |
| [24] |
XIAO Y,EBERHARD M O,ZHOU Y,et al.Low-prestressing,self-centering energy dissipative brace[J].Earthquake Engineering and Structural Dynamics,2022,51(12):2837-2857. |
| [25] |
XIAO Y,EBERHARD M O,ZHOU Y,et al.Experimental investigation of a low‐prestressed self‐centering energy dissipative brace[J].Earthquake Engineering and Structural Dynamics,2022,51(6):1457-1476. |
| [26] |
CHOU C C,CHEN Y C,PHAM D H,et al.Steel braced frames with dual-core SCBs and sandwiched BRBs:Mechanics,modeling and seismic demands[J].Engineering Structures,2014,72:26-40. |
| [27] |
刘璐,吴斌.自复位防屈曲支撑钢框架减振效果分析[J].建筑结构学报,2016,37(4):93-101. |
| [28] |
LIU Lu,WU Bin.Seismic response of steel frames with self-centering buckling-restrained braces[J].Journal of Building Structures,2016,37(4):93-101.(in Chinese) |
| [29] |
FEMA.State of the art report on systems performance of steel moment frames subject to earthquake ground shaking:FEMA 355C[S].Washington DC:Federal Emergency Management Agency,2000. |
| [30] |
ASCE.Minimum design loads and associated criteria for buildings and other structures:ASCE 7-16[S].Reston,VA:American Society of Civil Engineers,2016. |
| [31] |
AISC.Seismic provisions for structural steel buildings:ANSI/AISC 341-16[S].Chicago:American Institute of Steel Construction,2016. |
| [32] |
AISC.Specification for structural steel buildings:ANSI/AISC 360-16[S].Chicago:American Institute of Steel Construction,2016. |
| [33] |
JONES P,ZAREIAN F.Seismic response of a 40-storey buckling-restrained braced frame designed for the los angeles region[J].Structural Design of Tall and Special Buildings,2013,22(3):291-299. |
| [34] |
EROCHKO J,CHRISTOPOULOS C,TREMBLAY R.Design and testing of an enhanced-elongation telescoping self-centering energy-dissipative brace[J].Journal of Structural Engineering,2015,141(6):4014163. |
| [35] |
XIAO Y,EBERHARD M O,ZHOU Y,et al.Proportioning of self‐centering energy dissipative braces[J].Earthquake Engineering and Structural Dynamics,2021,50(10):2613-2633. |
| [36] |
周颖,赵佳美,肖意.基于不同评价标准的屈曲约束支撑-钢框架建筑抗震韧性评价研究[J].建筑结构学报,2023,44(4):204-215. |
| [37] |
ZHOU Ying,ZHAO Jiamei,XIAO Yi.Study on seismic resilience assessment of BRB-steel frame building based on various assessment standards[J].Journal of Building Structures,2023,44(4):204-215.(in Chinese) |
| [38] |
HSIAO P C,LEHMAN D E,ROEDER C W.A model to simulate special concentrically braced frames beyond brace fracture[J].Earthquake Engineering and Structural Dynamics,2013,42(2):183-200. |
| [39] |
尹之潜,杨淑文.震害与地震损失的估计方法[J].地震工程与工程振动,1990(1):99-108. |
| [40] |
YIN Zhiqian,LI Shuzhen,YANG Shuwen,ZHAO Zhi. Estimation Methods of Earthquake Damage and Losses [J].Earthquake Engineering and Engineering Vibration,1990(1):99-108. (in Chinese) |
国家重点研发计划项目(2023YFC3805000)
国家自然科学基金项目(52208501)
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