| 加肋板D型偏心支撑钢框架在循环荷载作用下的滞回性能分析 |
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| 引用本文： | 贠航,郝际平,潘秀珍,张营营,陈小峰,高杰.加肋板D型偏心支撑钢框架在循环荷载作用下的滞回性能分析[J].钢结构,2008,23(5):33-37. |
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| 作者姓名： | 贠航 郝际平 潘秀珍 张营营 陈小峰 高杰 |
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| 作者单位： | 西安建筑科技大学,土木工程学院,西安,710055;中联西北工程设计研究院,西安,710082 |
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| 基金项目： | 陕西省教育厅资助项目
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西安建筑科技大学重大科技项目创新资金项目
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山东莱钢建设有限公司资助项目 |
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| 摘 要： | D型偏心支撑钢框架是偏心支撑结构中常用的一种耗能形式,通过对2个1∶3比例的偏心支撑钢框架的滞回性能分析,重点研究偏心支撑极限承载力和滞回性能,为偏心支撑钢框架利用屈曲后强度及抗震设计提供依据。分析结果表明,加肋板的D型偏心支撑有良好的强度、刚度和耗能能力,其耗能梁段首先发生剪切屈服,有效地阻止了支撑的屈曲,在整个加载过程中,承载力没有降低。最后对偏心支撑的节点连接提出设计建议。
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| 关 键 词： | 偏心支撑 耗能梁段 屈曲 肋板 结构延性 有限元 |
HYSTERETIC BEHAVIOUR ANALYSIS OF D-TYPE ECCENTRICALLY BRACED STEEL FRAMES WITH REINFORCED RIB UNDER CYCLIC LOADING |
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| Yun Hang,Hao Jiping,Pan Xiuzhen,Zhang Yingying,Chen Xiaofeng,Gao Jie.HYSTERETIC BEHAVIOUR ANALYSIS OF D-TYPE ECCENTRICALLY BRACED STEEL FRAMES WITH REINFORCED RIB UNDER CYCLIC LOADING[J].Steel Construction,2008,23(5):33-37. |
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| Authors: | Yun Hang Hao Jiping Pan Xiuzhen Zhang Yingying Chen Xiaofeng Gao Jie |
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| Abstract: | The D-type eccentrically braced frame(EBF) provides an efficient structural system for resisting seismic action·Two one-third-scale eccentrically braced frames specimens had been analyzed under cyclic loading to study the hysteretic behaviour and ultimate bearing capacity which provide basis for EBF to utilize post-buckling strength and seismic design·The results show that the D-type eccentric brace with reinforced rib has good strength, stiffness and energy dissipation capacity·The links buckling first in the D-type EBF may prevent the buckling of the bracing members, the carrying capacity of the frame does not reduced during the loading·Suggestions are put forward for selected connections in EBF· |
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| Keywords: | EBF active beam links buckling ribbed slab structure ductility finite element |
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