钢铅组合耗能器力学性能试验研究
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摘要
为了设计具有竖向耗能能力的抗倾覆装置,介绍了一种钢铅组合耗能器。通过对其静力、动力、电液伺服动静万能试验机实验结果的分析,表明该阻尼器能够使钢铅两种材料协同工作、共同耗能,具有制作工艺简单,能够满足位移小、阻尼大,耗能稳定的要求。通过分析还给出了耗能器的力学性能和恢复力模型。对大高宽比隔震结构的仿真计算分析表明,安装钢铅组合耗能器的抗倾覆装置具有一定的耗能能力,并能够避免结构倾覆。
For design of overturn-resistant equipment with vertical energy dissipation, a steel-lead mixed damper is designed. Tensile and cyclic loading tests are performed to study the mechanical properties of the damper. Results show that the bi-material damper can work efficiently to dissipate energy. Based on the results, the hysteretic curve is given and the restoring model is set up. A base-isolated structure with a large height-to-width ratio is analyzed. The result indicates that the steel-lead mixed damper can dissipate energy and avoid overturn of structure.
For design of overturn-resistant equipment with vertical energy dissipation, a steel-lead mixed damper is designed. Tensile and cyclic loading tests are performed to study the mechanical properties of the damper. Results show that the bi-material damper can work efficiently to dissipate energy. Based on the results, the hysteretic curve is given and the restoring model is set up. A base-isolated structure with a large height-to-width ratio is analyzed. The result indicates that the steel-lead mixed damper can dissipate energy and avoid overturn of structure.
引文
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[2]李冀龙.金属耗能器的阻尼力模型[D].哈尔滨:哈尔滨工业大学,2002.LiJilong.Damping force model of metal dampers[D].Harbin:HarbinUniversity ofTechnology,2002.(inChinese)
[3]周云,周富霖,邓雪松.铅耗能器的研究与应用[J].世界地震工程,1999,15(3):53-60.ZhouYun,ZhouFulin,DengXuesong.On lead damper and its applications[J].WorldInformation onEarthquakeEngineering,1999,15(3):53-60.(inChinese)
[4]WhittakerA S andBerteroV V, et al.Seismic testing of steel plate energy dissipation devices[J].EarthquakeSpectra,1991,7(4):563-604.
[5]吴斌,欧进萍.软钢屈服耗能器的疲劳性能和设计准则[J].世界地震工程,1996,4:8-13.WuBin,OuJinping.Fatigue properties and design criteria for mild steel yielding energy dissipators[J].WorldInformation onEarthquakeEngineering,1996,4:8-13.(inChinese)
[6]赵桂峰.变刚度被动控制体系的研究[D].哈尔滨:哈尔滨工业大学,2001.ZhaoGuifeng.On stiffness-variable passive control systems[D].Harbin:HarbinUniversity ofTechnology,2001.(inChinese)
[7]王焕定,付伟庆,王铁英,张永山,魏陆顺.多级变刚度滞变耗能的设计思想和可行性实验研究[J].地震工程和工程振动,2001,21(4):154-158.WangHuanding,FuWeiqing,WangTieying.Design and experimental study of the multi-level variable-stiffness energy dissipation devices[J].EarthquakeEngineering andEngineeringVibration,2001,21(4):154-158.(inChinese)
[8]《砌体结构设计手册》编写组.砌体结构设计手册[M].北京:中国建筑工业出版社,1992.223-228.CompilingGroup ofHandbook forDesign ofMasonryStructures.Handbook for design of masonry structures[M].Beijing:ChinaArchitecture&BuildingPress,1992.223-228.(inChinese)
[9]王焕定,王铁英,张永山.高层配筋砌体建筑弹塑性时程分析程序开发中的若干问题[J].哈尔滨建筑大学学报,2001,34(5):6-10.WangHuanding,WangTieying,ZhangYongshan.Nonlinear time-history analysis code for tall buildings with reinforced concrete block masonry[J].Journal ofHarbinUniversity ofC.E.&Architecture,2001,34(5):6-10.(inChinese)
[10]王铁英,王焕定,张永山.高层配筋砌块砌体住宅弹塑性地震反应分析[J].哈尔滨建筑大学学报,2002,35(3):24-29.WangTieying,WangHuanding,ZhangYongshan.Elastoplastic seismic response analysis of tall buildings with reinforced concrete block masonry[J].Journal ofHarbinUniversity ofC.E.&Architecture,2002,35(3):24-29.(inChinese)
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