摩擦耗能支撑加固震损框架抗震性能试验研究
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摘要
进行3榀采用摩擦耗能支撑修复震损框架试件和2榀对比框架试件在水平往复荷载作用下的抗震性能试验,重点研究采用一种新型摩擦耗能支撑修复震损框架的效果和摩擦耗能器预紧力对加固试件抗震性能的影响。根据试验结果对试件的破坏特征、强度、刚度和耗能性能等抗震性能指标进行分析。试验结果表明,新型摩擦耗能器在往复荷载作用下滞回曲线接近理想矩形,摩擦耗能支撑工作性能稳定;耗能支撑加固后的震损框架水平承载力和抗侧刚度显著提高;随着摩擦耗能器预紧力增大,加固效果明显提升;耗能支撑加固震损框架的耗能能力可以恢复甚至大幅度提高,且耗能支撑是加固框架的主体耗能部位。研究成果可为震损框架的加固改造提供参考。
Experiments were conducted to study the seismic behavior of damaged RC frames retrofitted with friction energy dissipation braces( FEDB) under cyclic loading. The performance of this innovative FEDB and the effect of pretightening force of the friction damper on seismic performance of retrofitted frames were studied. Based on the test results,the damage characteristic,strength,stiffness and energy dissipation capacity of all specimens were analyzed.The test results indicate that the innovative friction damper has a desirable hysteretic curve with rectangular shape and the performance of the FEDB is stable under cyclic loading. The seismic performance was greatly improved when the damaged RC frames were retrofitted with the FEDB,and the improvement effect increases with the pre-tightening force of friction dampers. The FEDB is the main energy dissipation component in the retrofitted damaged RC frames under seismic loading. This research results can provide reference for retrofitting of damaged RC frames.
引文
[1]Soong T T,Spencer Jr B F.Supplemental energy dissipation:state-of-the-art and state-of-the-practice[J].Engineering Structures,2002,24(3):243-259
    [2]欧进萍,李洪泉,邱法维,等.采用耗能减震装置修复震后有损伤钢筋混凝土框架的试验研究[J].地震工程与工程振动,1996,16(1):30-38(Ou Jinping,Li Hongquan,Qiu Fawei,et al.Experimental study on seismic retrofit of earthquake damaged RC structures using energy dissipation devices[J].Earthquake Engineering and Engineering Vibration,1996,16(1):30-38(in Chinese))
    [3]李洪泉,欧进萍,王光远.地震后有损伤钢筋混凝土框架耗能减震加固试验分析[J].南京建筑工程学院学报,1996(4):8-14(Li Hongquan,Ou Jinping,Wang Guangyuan.Experimental study on seismic retrofit of earthquake damaged RC frame using energy dissipation devices[J].Journal of Nanjing Architectural and Civil Engineering Institute,1996(4):8-14(in Chinese))
    [4]闫维波,李振宝,马华,等.带耗能器-限位斜撑RC框架震损修复后抗震性能研究[J].工业建筑,2007,37(7):29-32(Yan Weibo,Li Zhenbao,Ma Hua,et al.An experimental study on performances of strengthened RC frames with RC dampers and braces[J].Industrial Construction,2007,37(7):29-32(in Chinese))
    [5]吴波,李洪泉,欧进萍.地震后有损伤结构的耗能减震加固设计[J].世界地震工程,1995(2):1-7(Wu Bo,Li Hongquan,Ou Jinping.Seismic retrofit of earthquake damaged structures using energy dissipation devices[J].World Earthquake Engineering,1995(2):1-7(in Chinese))
    [6]李洪泉,陈颖,欧进萍,等.地震损伤钢筋混凝土结构耗能减震加固设计实用方法[J].世界地震工程,2001,17(4):42-47(Li Hongquan,Chen Ying,Ou Jinping,et al.A practical method of seismic retrofit of RC frame using energy dissipation device[J].World Information on Earthquake Engineering,2001,17(4):42-47(in Chinese))
    [7]Weng D G,Zhang C,Lu X L.Application of energy dissipation technology to C-category frame structure of school buildings for seismic retrofit of increasing precautionary intensity[J].Advanced Materials Research,2011,163:3480-3487
    [8]张超,翁大根,彭林海.震损钢筋混凝土结构减震加固研究进展[J].工程抗震与加固改造,2012,34(3):112-120,107(Zhang Chao,Weng Dagen,Peng Linhai.Research review on seismic retrofit of earthquake-damage RC structure by using energy dissipation technology[J].Earthquake Resistant Engineering and Retrofitting,2012,34(3):112-120,107(in Chinese))
    [9]Yang S B,Song J X,Pan W.Application of frictional energy dissipation brace in seismic strengthening[J].Applied Mechanics and Materials,2013,405:1969-1973
    [10]Pall A S,Marsh C.Response of friction damped braced frames[J].Journal of Structural Engineering,1982,108(9):1313-1323
    [11]Soong T T,Dargush G F.Passive energy dissipation system in structural engineering[M].New York:John Wiley&Sons,1997
    [12]郭子雄,张鹏,黄群贤,等.长孔螺栓板式摩擦耗能器滞回性能试验研究[J].福州大学学报:自然科学版,2013,41(4):622-628(Guo Zixiong,Zhang Peng,Huang Qunxian,et al.Experimental research on the hysteretic behavior of slotted-bolted-plate friction damper device[J].Journal of Fuzhou University:Natural Science Edition,2013,41(4):622-628(in Chinese))
    [13]张鹏.采用摩擦耗能支撑加固震损框架抗震性能试验研究[D].厦门:华侨大学,2012(Zhang Peng.Experimental study on seismic behavior of damaged frames with friction damper brace[D].Xiamen:Huaqiao University,2012(in Chinese))

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