| 楼板连接方式对厂房结构动力特性的影响分析 |
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| 引用本文： | 郭冬云,伍鹤皋,冯敏.楼板连接方式对厂房结构动力特性的影响分析[J].中国农村水利水电,2011(10). |
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| 作者姓名： | 郭冬云 伍鹤皋 冯敏 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 摘 要： | 以某大型水电站地面厂房为例,建立了厂房结构三维有限元模型,针对楼板与上下游墙不同的连接方式,研究了厂房结构的固有振动特性,并进行了厂房整体结构的谐响应分析。结果表明,楼板与上下游墙采取搭接方式连接时,楼板和风罩的水平刚度减小,致使厂房上部结构和楼板的振感较强,楼板和风罩结构的水平位移增大,但对厂房结构的动应力影响较小。经综合分析比较,楼板与上下游墙采用搭接方式对厂房结构楼板的抗振较为不利。
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| 关 键 词： | 水工结构 动力特性 有限元法 水电站厂房 楼板连接方式 |
Effect Analysis of Structural Dynamic Characteristics of Powerhouse Considering Different Connections of Floors |
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| GUO Dong-yun,WU He-gao,FENG Min.Effect Analysis of Structural Dynamic Characteristics of Powerhouse Considering Different Connections of Floors[J].China Rural Water and Hydropower,2011(10). |
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| Authors: | GUO Dong-yun WU He-gao FENG Min |
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| Institution: | GUO Dong-yun,WU He-gao,FENG Min(State Key Laboratory of Water Resoureces and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
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| Abstract: | A three-dimensional finite element model is established in accordance with a large surface powerhouse in this paper.The natural vibration characteristics of powerhouse structures considering different connection manners between floors and walls are studied.Furthermore,the harmonic responses of the powerhouse structure models under dynamic loads in different calculation schemes are analyzed.According to the results,the vibration responses of superstructures and floors are stronger,and the horizontal vibratio... |
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| Keywords: | hydraulic structure dynamic characteristic FEM hydropower house connection manner of floors |
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