屈曲约束支撑屈服后刚度比影响因素分析及计算方法
Influencing Factors Analysis and Calculation of Post-Yield Stiffness Ratio for Buckling-Restrained Brace
基于屈曲约束支撑刚度的理论计算公式及已有的试验数据,得到屈曲约束支撑屈服后刚度比的主要影响因素。设计了一根芯板为十字型截面的屈曲约束支撑试验构件,测试其滞回特性,并以试验结果校核有限元模型。通过有限元方法分析芯板材料类型、芯板弹性段-屈服段轴向线刚度比对屈曲约束支撑屈服后刚度的影响。分析结果表明,芯板材料类型对屈曲约束支撑屈服后刚度比影响较为显著。芯板弹性段相对长度和截面面积增加,屈服后刚度比也逐渐增大,但改变弹性段长度对屈服后刚度比影响更大。通过参数分析,拟合出不同芯板材料类型的屈曲约束支撑屈服后刚度比与芯板弹性段-屈服段轴向线刚度比的计算公式,可供工程设计人员使用。
Based on theoretical calculation formulas for the stiffness of buckling-restrained braces alongside existing experimental data, the primary factors affecting the post-yield stiffness ratio of buckling-restrained braces were identified. A test specimen of buckling-restrained brace with cross-sectional core plate was designed, and its hysteretic behavior was elucidated through experiment. The finite element model was subsequently validated against the test results. The impact of core plate material and the axial stiffness ratio between the core plate elastic segment and yielding segment on the post-yield stiffness of buckling-restrained braces were systematically examined through finite element analysis. The analytical results demonstrated that the material of the core plate have a substantial influence on the post-yield stiffness ratio of buckling-restrained brace. The post-yield stiffness ratio increases with the increase of elastic segment length and section area. And changing the length of the elastic segment has a greater impact on the post-yield stiffness ratio. Through comprehensive parameter analysis, predictive formulas have been derived for calculating the post-yield stiffness ratio of buckling-restrained braces with various core plate materials. These formulas are intended to aid engineering designers in their calculations and design processes.
| [1] |
PRAKASH S. BADAL, SOLOMON T.Seismic collapse performance of high-rise mass timber building with buckling-restrained braced frames[J].Soil Dynamics and Earth quake Engineering,2024,177:108369. |
| [2] |
MUHAMMED N K,SAFEER P M. Seismic response modification factors evaluation of a 4-storey buckling restrained braced frame (BRBF)[J].Materials Today:Proceedings. |
| [3] |
张沫洵,徐福江,盛平,国家会议中心二期配套酒店结构设计[J].建筑结构,2023,53(18):30-34,103. |
| [4] |
ZHANG Moxun,XU Fujiang,SHENG Ping,et al.Structural design of supporting hotel of National Convention Center Phase II[J].Building Structure,2023,53(18):30-34,103.(in Chinese) |
| [5] |
BALLINAS E,GUERRERO H,TERÁN-GILMORE A,et al.Seismic response comparison of an existing hospital structure rehabilitated with BRBs or conventional braces[J].Engineering Structures,2021,243:112666. |
| [6] |
方志庆,王轩,周颖,高烈度区火电厂主厂房屈曲约束支撑应用研究[J].武汉大学学报(工学版),2020,53(S):6-11. |
| [7] |
FANG Zhiqing,WANG Xuan,ZHOU Ying,et al.Research on seismi cenergy dissipation of buckling-restrained brace(BRB) for the main buildings of thermal power plants in high seismic intensity regions[J].Engineering Journal of Wuhan University,2020,53(S):6-11.(in Chinese) |
| [8] |
漆启明,邵长江,黄辉,基于BRB的铁路双柱式超高墩连续梁桥横向减震研究[J].振动与冲击,2022,41(7):182-192. |
| [9] |
QI Qiming,SHAO Changjiang,HUANG Hui,et al.Transverse seismic mitigation of railway continuous girder bridge with double-column ultra-high piers based on BRBs[J].Journal of Vibration and Shock,2022,41(7):182-192.(in Chinese) |
| [10] |
JIA L J,GE H,MARUYAMA R,et al.Development of a novel high-performance all-steel fish-bone shaped buckling-restrained brace[J].Engineering Structures,2017,138(MAY1):105-119. |
| [11] |
WEI,LI,BIN,et al.Experimental performance of buckling-restrained braces with steel cores of H-section and half-wavelength evaluation of higher-order local buckling[J].Advances in Structural Engineering,2017,20:641-657. |
| [12] |
李国强,孙飞飞,邓仲良,屈曲约束支撑抗震性能试验研究[J].建筑结构,2014,44(18):71-78. |
| [13] |
LI Guoqiang,SUN Feifei,DENG Zhongliang,et al.Experimental study on seismic performance of buckling restrained braces[J].Building Structure,2014,44(18):71-78.(in Chinese) |
| [14] |
周云,钟根全,陈清祥,不同构造钢板装配式屈曲约束支撑性能试验研究[J].土木工程学报,2017,50(12):9-17. |
| [15] |
ZHOU Yun,ZHONG Genquan,CHEN Qingxiang,et al.Experimental study on the performance of prefabricated buckling restrained braces with different structural steel plates[J].Journal of Civil Engineering,2017,50(12):9-17.(in Chinese) |
| [16] |
罗开海,孔祥雄,程绍革.一种新型屈曲约束支撑的研制与试验研究[J].建筑结构,2010,40(10):1-6. |
| [17] |
LUO Kaihai,KONG Xiangxiong,CHENG Shaoge.Development and experimental study of a new type of buckling restrained support[J].Building Structure,2010,40(10):1-6.(in Chinese) |
| [18] |
杨璐,卫璇,施刚,LY315钢屈曲约束支撑耗能性能试验研究[J].工程力学,2019,36(1):200-206. |
| [19] |
YANG Lu,WEI Xuan,SHI Gang,et al Experimental study on energy dissipation performance of LY315 steel buckling restrained brace[J].Engineering Mechanics,2019,36(1):200-206.(in Chinese) |
| [20] |
赵俊贤,吴斌,欧进萍.新型全钢防屈曲支撑的拟静力滞回性能试验[J].土木工程学报,2011,44(4):60-70. |
| [21] |
ZHAO Junxian,WU Bin,OU Jinping.Experimental study on the quasi-static hysteresis performance of a new type of full-steel buckling-restrained brace[J].China Civil Engineering Journal,2011,44(4):60-70.(in Chinese) |
| [22] |
胡大柱,曹俊,金元泽,防屈曲钢板墙屈服后刚度影响因素分析[J].建筑钢结构进展,2025,27(1):72-82. |
| [23] |
HU Dazhu,CAO Jun,JIN Yuanze,et al.Analysis of factors affecting the stiffness of anti buckling steel plate walls after yield[J].Progress in Steel Building Structures,2025,27(1):72-82.(in Chinese) |
| [24] |
冯玉龙,吴京,种迅,支撑屈服后屈曲约束支撑框架损伤集中效应分析[J].土木工程学报,2019,52(6):45-54. |
| [25] |
FENG Yulong,WU Jing,CHONG Xun,et al.Damage concentration effect analysis of buckling-restrained braced frames after yielding of the braces[J].China Civil Engineering Journal,2019,52(6):45-54.(in Chinese) |
| [26] |
CHRISTOPOULOS C,PAMPANIN S.Towards performance-based seismic design of MDOF structures with explicit consideration of residual deformations[J].IEST Journal of Earthquake Technology,2004,41(1):53-73. |
| [27] |
KONG S H,SHI F,ZHOU Y,et al.Influence of BRBs deformation capacity on the seismic performance of RC building frames[J].Soil Dynamics and Earthquake Engineering,2022,161:107442. |
| [28] |
经杰,叶列平,钱稼茹.双重抗震结构体系在高层建筑中的应用[J].建筑科学,2001(1):42-45,58. |
| [29] |
JING Jie,YE Lieping,QIAN Jiaru.The application of dual seismic resistant structural system in high-rise buildings[J].Architectural Science,2001(1):42-45,58.(in Chinese) |
| [30] |
PETTINGA D,CHRISTOPOULOS C,PAMPANIN S,et al.Effectiveness of simple approaches in mitigating residual deformations in buildings[J].Earthquake Engineering & Structural Dynamics,2010,36(12):1763-1783. |
| [31] |
金元泽.屈服后刚度对金属消能器及减震结构抗震性能影响分析[D].上海:上海应用技术大学,2022. |
| [32] |
JIN Yuanze.Analysis of the influence of post yielding stiffness on the seismic performance of metal energy dissipators and seismic reduction structures[D].Shanghai:Shanghai Institute of Technology,2022.(in Chinese) |
| [33] |
建筑抗震设计标准:GB 50011—2010[S].北京:中国建筑工业出版社,2010. |
| [34] |
Code for seismic design of buildings:GB 50011—2010[S].Beijing:China Architecure and Building Press,2010.(in Chinese) |
| [35] |
上海市金属结构协会,同济大学多高层钢结构与钢结构抗火研究室.TJ型屈曲约束支撑设计手册[C].2009. |
| [36] |
Shanghai Metal Structure Association,Tongji University Multi-High-Rise Steel Structure and Steel Structure Fire Resistance Research Laboratory.Design manual for TJ type buckling-restrained braces[C].2009.(in Chinese) |
| [37] |
建筑消能减震及隔震技术标准:DG/TJ 08-2326—2020[S].上海:同济大学出版社,2020. |
| [38] |
Standard for building energy dissipation and isolation design:DG/TJ 08-2326—2020[S].Shanghai:Tongji University Press,2020.(in Chinese) |
| [39] |
姜涛,戴君武,杨永强,一种新型全钢屈曲约束支撑静动力学性能分析[J].动力学与控制学报,2020,18(5):46-56. |
| [40] |
JIANG Tao,DAI Junwu,YANG Yongqiang,et al.Static and dynamic performance analysis of a new type of all steel buckling restrained support[J].Journal of Dynamics and Control,2020,18(5):46-56.(in Chinese) |
| [41] |
石永久,王萌,王元清.循环荷载作用下结构钢材本构关系试验研究[J].建筑材料学报,2012,15(3):293-300. |
| [42] |
SHI Yongjiu,WANG Meng,WANG Yuanqing.Experimental study on constitutive relationship of structural steel under cyclic loading[J].Journal of Building Materials,2012,15(3):293-300.(in Chinese) |
| [43] |
王元清,关阳,刘明,建筑结构钢材及其焊缝循环本构模型的实验研究[J].天津大学学报(自然科学与工程技术版),2019,52(S2):1-8. |
| [44] |
WANG Yuanqing,GUAN Yang,LIU Ming,et al.Experimental study on cyclic constitutive model of building structural steel and its welds[J].Journal of Tianjin University (Natural Science and Engineering Technology Edition),2019,52(S2):1-8.(in Chinese) |
/
| 〈 |
|
〉 |