| 类反应谱法理论研究 |
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| 引用本文： | 卢云祥,娄泽方,蔡元奇.类反应谱法理论研究[J].武汉水运工程学院学报,2013(5):965-969. |
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| 作者姓名： | 卢云祥 娄泽方 蔡元奇 |
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| 作者单位： | [1]贵州省建筑科学研究检测中心,贵阳550006 [2]中信建筑设计研究总院,武汉430014 [3]武汉大学土木建筑工程学院,武汉430072 |
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| 基金项目： | 贵州省科学技术基金项目资助（黔科合J字[2012]2295号） |
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| 摘 要： | 针对楼面设备谐波荷载作用下建筑结构的动力响应问题,提出了类似反应谱的求解方法,并结合工程实例,与现有的动力系数法和弹性时程法计算结果进行对比分析.结果表明,动力系数法不能合理估计结构的动力响应,且不能对振动舒适性进行评估；类反应谱法计算结果与弹性时程法响应最大包络值分布规律基本一致,且能经济包络其值.说明了类反应谱法的合理、安全和经济性,可为类似工程设计提供依据.
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| 关 键 词： | 谐波荷载 类反应谱法 模态截断 模态组合 |
Research on Theory of Pseudo-Response Spectrum Method |
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| Authors: | LU Yunxiang LOU Zefang CAI Yuanqi |
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| Institution: | 1.Construction Scientific Research Testing Center of Guizhou Province, Guiyang 550006, China; 2.CITIC General Institute of Architectural Design and Research Co.Ltd, Wuhan 430014, China; 3.Department of Civil and Architectural, Wuhan University, Wuhan 430072, China;) |
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| Abstract: | To address the dynamic response of the building structure,which is caused by harmonic load on the floor,the solving method which is similar to the response spectrum is proposed.Combined with engineering practice,the analysis results of pseudo-response spectrum method were compared with the results of existing dynamic coefficient method and elastic time-history method.The contrast results show that dynamic coefficient method due to lacking of considering dynamic properties enough was not able to meet the real response and could not evaluate the comfort of the vibration.The results of pseudo-response spectrum method with suitable mode combination method have the same law of the maximum enveloping value as elastic time-history method.This proved that pseudo-response spectrum method is reasonable,safe and economical,which can provide the basis for engineering design. |
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| Keywords: | harmonic load pseudo-response spectrum method modal truncation mode superposition |
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