高烈度区大型发电厂主厂房钢结构设计 |
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作者单位: | 北京国电华北电力工程有限公司 |
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摘 要: | 根据8度区Ⅳ类场地1000MW发电机组主厂房钢结构工程设计实践所反映出的问题,讨论了不同地震烈度、场地类别、阻尼比和不同的结构布置形式时的地震反应;阐述了场地条件对主厂房钢结构的地震反应的影响,提出了合理的支撑布置形式;推荐了高烈度区主厂房钢结构的抗震设计时阻尼比的建议取值.可供类似工程设计和《土规》修订时参考.
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关 键 词: | 高烈度区 1000MW发电机组 主厂房 钢结构 结构布置 阻尼比 |
Steel structure design of main buildings for large thermal power stations in meizoseismal area |
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Authors: | WANG Yongqiang MA Shen HE Liting WU Bing |
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Abstract: | The earthquake responses under different earthquake intensity,different sites,and different structure disposal forms are discussed based on the problems in the steel structure design of main building with 1 000 MW unit in seismic region of M8,site IV area.The site effect on main building steel structure due to earthquake effect is expatiated.Reasonable bracing disposal,and modal damping ratios of large thermal power station main building at meizoseismal area are recommended so as to offer some reference for power plant design and revampment of DL 5022-93. |
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Keywords: | meizoseismal area 1000 MW unit main building of power station steel structure structure disposal damping ratio |
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