| 强震下人字形中心支撑钢框架滞回能需求层间分布影响因素 |
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| 引用本文： | 杭晓晨,顾强.强震下人字形中心支撑钢框架滞回能需求层间分布影响因素[J].苏州科技学院学报(工程技术版),2014(2):36-41. |
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| 作者姓名： | 杭晓晨 顾强 |
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| 作者单位： | 苏州科技学院土木工程学院,江苏苏州215011 |
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| 基金项目： | 国家自然科学基金项目（51278320） |
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| 摘 要： | 考虑不同地震动参数和结构参数,采用非线性动力分析方法,对3个不同层数的人字形中心支撑钢框架结构滞回能需求的层间分布规律进行了研究.分析了加速度峰值、地震波持时、结构阻尼比、切线模量、楼层数、支撑长细比等对结构层间滞回能需求的影响;为中心支撑钢框架基于能量的抗震设计方法研究提供了依据.
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| 关 键 词： | 人字形中心支撑钢框架 能量平衡 滞回能分布 动力非线性分析 |
The influence factors of hysteretic energy demand distribution through the height of Chevron steel braced frames under severe earthquakes |
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| HANG Xiaochen,GU Qiang.The influence factors of hysteretic energy demand distribution through the height of Chevron steel braced frames under severe earthquakes[J].Journal of University of Science and Technology of Suzhou：Engineering and Technology,2014(2):36-41. |
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| Authors: | HANG Xiaochen GU Qiang |
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| Affiliation: | (School of Civil engineering, SUTS, Suzhou 215011,China) |
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| Abstract: | Nonlinear dynamic time-history analysis of 3 Chevron steel braced frames are carried out using earth- quake ground motions, in order to analyze the affection of ground motions and structural characteristics on the hysteretic energy demand distribution through the height. The affection of peak acceleration and duration of seismic records, structural damping ratio, tangent modulus, floors and slenderness ratio of the brace on the hysteretic energy demand distribution through the height are analyzed, which provides the basis for energy based seismic design method of Chevron steel braced frames. |
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| Keywords: | Chevron steel braced frames energy balance hysteretic energy distribution Nonlinear dynamic time history analysis |
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