段药量对滞回耗能谱的影响研究
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摘要
为了研究段药量对滞回耗能谱的影响,进行了不同段药量爆破下的单孔振动试验。基于现场实测数据,利用Newmark-β时程分析方法与双线型恢复力模型对不同段药量爆破地震波作用下弹塑性SDOF结构进行能量反应,并以滞回耗能作为结构塑性累积损伤破坏的指标进行分析。结果表明:段药量是影响滞回耗能的重要因素,随着段药量的增加滞回耗能谱的峰值增大且峰值对应的结构的固有周期增大。因此可认为,段药量越大对结构产生的塑性累积损伤越大,越不利于结构的安全。研究成果可从能量的角度揭示段药量对结构塑性累积损伤破坏的影响,并为从能量的角度进行降振、抗振的深入研究提供分析基础。
In order to study the influence of charge quantity in one delay time on hysteretic energy spectra,a single hole vibration test was carried out under different charge quantity condition.Based on the measured field test data,the energy response of elastic-plastic SDOF structures under seismic waves of different charge quantities in one delay time was analyzed with Newmark-β time-historic analytical method and bilinear restoring force model.Results show that the charge quantity in one delay time was an important influencing factor on hysteretic energy;the peak value of hysteretic energy spectra and corresponding natural period of structure increased with the charge quantity in one delay time.It can be considered that,therefore,the higher charge quantity in one delay time caused greater plastic cumulative damage on structure.Research results revealed the impact of charge quantity on structure plastic cumulative damage and provided analysis basis for in-depth research of reducing vibration and anti-vibration from the viewpoint of energy.
In order to study the influence of charge quantity in one delay time on hysteretic energy spectra,a single hole vibration test was carried out under different charge quantity condition.Based on the measured field test data,the energy response of elastic-plastic SDOF structures under seismic waves of different charge quantities in one delay time was analyzed with Newmark-β time-historic analytical method and bilinear restoring force model.Results show that the charge quantity in one delay time was an important influencing factor on hysteretic energy;the peak value of hysteretic energy spectra and corresponding natural period of structure increased with the charge quantity in one delay time.It can be considered that,therefore,the higher charge quantity in one delay time caused greater plastic cumulative damage on structure.Research results revealed the impact of charge quantity on structure plastic cumulative damage and provided analysis basis for in-depth research of reducing vibration and anti-vibration from the viewpoint of energy.
引文
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[19]赵明生,张亚文,徐海波,等.不同微差间隔下爆破振动信号的反应谱分析[J].爆破,2011,28(1):28-32.[19]ZHAOMing-sheng,ZHANG Ya-wen,XU Hai-bo,et al.Response spectrum analysis of blasting vibration signalwith different microsecond delay time[J].Blasting,2011,28(1):28-32.(in Chinese)
[2]史太禄,李保珍.微差间隔时间、药量分布及测距对爆破震动的影响[J].工程爆破,2003,9(4):10-13.[2]SHI Tai-lu,LI Bao-zhen.The effects of millisecond delayinterval,charge distribution and measuring distance onblasting vibration[J].Explosion and Shock Waves,2003,9(4):10-13.(in Chinese)
[3]张丹,段恒建,曾福洪.分段爆破地震强度的试验研究[J].爆炸与冲击,2006,26(3):279-283.[3]ZHANG Dan,DUAN Heng-jian,ZENG Fu-hong.Exper-imental study on subordinate blasting seismic intensity[J].Blasting,2006,26(3):279-283.(in Chinese)
[4]凌同华,李夕兵,王桂尧.单段爆破震动的动态响应分析[J].中南大学学报(自然科学版),2007,38(3):551-554.[4]LING Tong-hua,LI Xi-bing,WANG Gui-yao.Dynamicresponse analysis of single-interval-time in millisecondblast vibration[J].J Cent South Univ(Science and Tech-nology),2007,38(3):551-554.(in Chinese)
[5]中国生,敖丽萍,赵奎.基于小波包能量谱爆炸参量对爆破振动信号能量分布的影响[J].爆炸与冲击,2009,29(3):300-305.[5]ZHONG Guo-sheng,AO Li-ping,ZHAO Kui.Influenceof explosion parameters on energy distribution of blastingvibration signal based on wavelet packet energy spectrum[J].Explosion and Shock Waves,2009,29(3):300-305.(in Chinese)
[6]史秀志,陈寿如.爆破振动时频特征的段药量及抵抗线效应[J].煤炭学报,2009,34(3):345-349.[6]SHI Xiu-zhi,CHEN Shou-ru.Explosive blasted per delayand burden effects on the time-frequency characteristic ofvibration induced by blast[J].Coal Engineering,2009,34(3):345-349.(in Chinese)
[7]赵明生,梁开水,李本伟.段药量对爆破振动信号时频特性的影响研究[J].振动与冲击,2012,31(7):85-88.[7]ZHAO Ming-shen,LIANG Kai-shui,LI Ben-wei.Influ-ence of deck charge on time-frequency characteristics of ablasting vibration signal[J].Journal of Vibration andShock,2012,31(7):85-88.(in Chinese)
[8]MANFREDI G.Evaluation of seismic energy demand[J].Earthquake Engineering&Structural Dynamics,2001,30:485-499.
[9]翟长海,谢礼立,吴知丰.基于台湾集集地震的结构滞回耗能影响分析[J].哈尔滨工业大学学报,2006,38(1):59-62.[9]ZHAI Chang-hai,XIE Li-li,WU Zhi-feng.Influence a-nalysis on hysteretic-energy based on 1999 Chi-Chi Tai-wan Earthquake[J].Journal of Harbin Institute of Tech-nology,2006,38(1):59-62.(in Chinese)
[10]周云.耗能减震加固技术与设计方法[M].北京,科学出版社,2006.
[11]李宏男.结构多维抗震理论[M].北京:科学出版社,2006.
[12]吕西林,蒋欢军.结构地震作用和抗震概念设计[M].武汉:武汉理工大学出版社,2004.
[13]陆新征,叶列平,廖志伟,等.建筑抗震弹塑性分析—原理、模型与在ABAQUS,MSC.MARC和SPA2000上的实践[M].北京:中国建筑工业出版社,2009.
[14]肖明葵,刘纲,白绍良,等.抗震结构的滞回耗能谱[J].世界地震工程,2002,18(3):110-115.[14]XIAO Ming-kui,LIU Gang,BAI Shao-liang,et al.Thehysteretic energy spectra of seismic structures[J].World Information on Earthquake Engineering,2002,18(3):110-115.(in Chinese)
[15]郭子雄,杨勇.恢复力模型研究现状及存在问题[J].世界地震工程,2004,20(4):47-51.[15]GUO Zi-xiong,XIONG Yong.State of the art of resto-ring force models for RC structures[J].World Informa-tion on Earthquake Engineering,2004,20(4):47-51.(in Chinese)
[16]肖明葵.基于性能的抗震结构位移及能量反应分析方法研究[D].重庆:重庆大学,2004.[16]XIAO Ming-kui.Analysis method of displacement andenergy responses for evaluating the performance of seis-mic structures[D].Chongqing:Chongqing University,2004.(in Chinese)
[17]徐赵东,郭迎庆.MATLAB语言在建筑抗震工程中的应用[M].北京:科学出版社,2004.
[18]盛明强.基于滞回耗能的结构抗震性能评价方法研究[D].上海:同济大学,2008.[18]SHENG Ming-qiang.The research on hysteretic energy-based evaluating method of structures’seismic perform-ance[D].Shanghai:Tongji University,2004.(in Chi-nese)
[19]赵明生,张亚文,徐海波,等.不同微差间隔下爆破振动信号的反应谱分析[J].爆破,2011,28(1):28-32.[19]ZHAOMing-sheng,ZHANG Ya-wen,XU Hai-bo,et al.Response spectrum analysis of blasting vibration signalwith different microsecond delay time[J].Blasting,2011,28(1):28-32.(in Chinese)
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