| 耗能段腹板高厚比对Y型偏心支撑钢框架滞回性能影响的试验研究 |
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| 引用本文： | 于安林,赵宝成,李仁达,沈淼.耗能段腹板高厚比对Y型偏心支撑钢框架滞回性能影响的试验研究[J].地震工程与工程振动,2009,29(6). |
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| 作者姓名： | 于安林 赵宝成 李仁达 沈淼 |
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| 作者单位： | 江苏省结构工程重点实验室(苏州科技学院),江苏,苏州,215011 |
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| 摘 要： | Y型偏心支撑钢框架是偏心支撑结构中抗震耗能的结构形式之一,为了研究Y型偏心支撑钢框架中耗能梁段腹板高厚比对结构滞回性能的影响,进行了2榀1/3缩尺Y型偏心支撑钢框架的低周反复荷载试验.本文主要介绍了试验过程,分析了Y型偏心支撑钢框架在循环荷载作用下的破坏机理、滞回性能、延性、刚度退化规律以及耗能能力.试验结果表明:Y型偏心支撑钢框架延性好、耗能能力强,耗能梁段腹板高厚比的改变对Y型偏心支撑钢框架强度、刚度以及耗能能力具有较大的影响.耗能梁段腹板高厚比设计得合理,Y型偏心支撑钢框架侧向刚度较大,可以满足在小震或中震作用下的结构变形要求,在大震作用下提供良好的变形能力和耗散地震能量的功能.
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| 关 键 词： | Y型偏心支撑 钢框架 循环荷载试验 耗能梁段 滞回性能 |
Experimental study on effect of link beam web depth-thickness ratio on energy-dissipation of Y-shaped eccentrically braced steel frames |
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| YU Anlin,ZHAO Baocheng,LI Renda,SHEN Miao.Experimental study on effect of link beam web depth-thickness ratio on energy-dissipation of Y-shaped eccentrically braced steel frames[J].Earthquake Engineering and Engineering Vibration,2009,29(6). |
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| Authors: | YU Anlin ZHAO Baocheng LI Renda SHEN Miao |
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| Institution: | YU Anlin,ZHAO Baocheng,LI Renda,SHEN Miao(Jiangsu Key Laboratory of Structure Engineering(University of Science , Technology of Suzhou),Suzhou 215011,China) |
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| Abstract: | Y-shaped eccentrically braced steel frames have high earthquakes resistance and energy-dissipation.In order to research the energy-dissipation of Y-shaped eccentrically braced steel frames in changing depth-thickness ratio of link beam,the one-bay two-story test specimen at one-third scale was made under low reversed cyclic loading.The process of test was introduced and failure mechanism,hysteretic behavior,ductility,rigidity degeneration and energy-dissipation of Y-shaped eccentrically braced steel frames ... |
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| Keywords: | Y-eccentrically braced steel frames low reversed cyclic test link beam hysteretic behavior |
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