新型钢铅组合耗能器试验研究
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摘要
利用钢和铅各自的优点开发了一种低屈服极限新型钢铅组合耗能器,通过2组不同参数耗能器和1个纯钢耗能器的试验研究,分析了翼缘宽度和腹板厚度等参数对耗能器性能的影响,对同等位移和同等出力情况下的钢铅组合耗能器和纯钢耗能器滞回曲线进行了对比。结果表明,所开发的新型耗能器滞回曲线饱满、耗能稳定,可通过设计耗能器的参数达到所需屈服性能,耗能器制作工艺简单、经济性好,是一种性价比较高的耗能器。
A new combined steel-lead damper (CSLD) which combines the merits of steel and lead and exhibits low yield strength is developed. Two groups of tests with CSLD for different working parameters and one contrast test with conventional steel damper were conducted. The influences of flange girth width and web plate thickness of the CSLD were analyzed, and the comparison of hysteresis curves of CSLD and steel damper were carried out. The results show that the new CSLD exhibits full hysteresis loop and stable energy dissipation. And its expected performance can be achieved by appropriate parameter design. From the study, it can be seen that the new CSLD is economical and easy to manufacture, and has a high performance-price ratio.
A new combined steel-lead damper (CSLD) which combines the merits of steel and lead and exhibits low yield strength is developed. Two groups of tests with CSLD for different working parameters and one contrast test with conventional steel damper were conducted. The influences of flange girth width and web plate thickness of the CSLD were analyzed, and the comparison of hysteresis curves of CSLD and steel damper were carried out. The results show that the new CSLD exhibits full hysteresis loop and stable energy dissipation. And its expected performance can be achieved by appropriate parameter design. From the study, it can be seen that the new CSLD is economical and easy to manufacture, and has a high performance-price ratio.
引文
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[2]Lu Xilin,Zhao Bin.Recent advances in structural control research and applications in China mainland[J].Earthquake Engineering and Engineering Vibration,2003,2(1):117~132.
[3]Nakashima Masayoshi.Strain-hardening behavior of shear panels made of low-yield steel,I:test[J].Journal of Structural Engineering,ASCE,1995,121(12):1742~1749.
[4]Yamaguchi Tanemi,Takeuchi Toru,Nagao Toshimichi.Seismic control devices using low-yield-point steel[R].Nippon Steel Technical Report,1998,(77,78):65~72.
[5]Shih Minghsiang,Sung Wenpei,Go Cheergerm.Investigation of newly developed added damping and stiffness device with low yield strength steel[J].Journal of Zhejiang University:Science,2004,5(3):326~334.
[6]李玉顺,大井谦一,沈士钊.钢框架结构软钢阻尼器振动控制的试验及理论研究[J].建筑结构学报,2004,25(2):1~7.Li Yushun,Kenichi Oni,Shen Shizhao.Experimental and theoretical investigations on vibration control of steel frame attached with hysteretic dampers[J].Journal of Building Structures,2004,25(2):1~7.(in Chinese)
[7]王艳武,王铁英,王焕定.两类铅阻尼器的试验研究[J].地震工程与工程振动,2004,24(1):166~171.Wang Yanwu,Wang Tieying,Wang Huanding.Experimental research on two kinds of lead dampers[J].Earthquake Engineering and Engineering Vibration,2004,24(1):166~171.(in Chinese)
[8]王铁英,王艳武,王焕定.钢铅组合耗能器力学性能试验研究[J].工程力学,2005,22(2):149~154.Wang Tieying,Wang Yanwu,Wang Huanding.Experimental study of mechanical properties of steel-lead mixed dampers[J].Engineering Mechanics,2005,22(2):149~154.(in Chinese)
[9]张少棠.钢铁材料手册第五卷-不锈钢[M].北京:中国标准出版社,2001.Zhang Shaotang.Manual of steel materials V--stainless steel[M].Beijing:China Standard Press,2001.(in Chinese)
[10]李松瑞.铅及铅合金[M].长沙:中南工业大学出版社,1996.Li Songrui.Lead and leaded alloy[M].Changsha:Central South University Press,1996.(in Chinese)
[11]陈绍蕃.钢结构[M].北京:中国建筑工业出版社,1989.Chen Shaofan.Steel structures[M].Beijing:China Architecture and Building Press,1989.(in Chinese)
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