摘要
三峡水电站厂房为坝后式，共安装26台容量700MW的汉流式机组。厂房上部结构的强度与刚度是厂房技术设计审查的重要内容，厂房专家组对此提出了许多意见和建议。厂房上部结构形式可归纳为梁柱方案、实体墙方案和墙柱方案。经三方案位移与应力分析，专家组认为实体墙方案对抗震有利，工程投资增加亦有限，施工简单，倾向采用此方案。厂房水下结构，应尽可能增加结构刚度。屋盖采用网架结构。
The Three Gorges Powerhouse will be arranged at the dam toe, with a total capacity of 700 MW × 26 mixed flow turbines. The review emphases were put on the strength and the stiffness of the upper structure of the powerhouse at the detailed design phase. The experts expressed many opinions and recommendations. The structural patterns included mainly the beam and column scheme, the solid wall scheme and the wall and column scheme. By analysis on the displacement and stress, the experts believed the solid wall scheme would be favorable for the vibration resistance and the construction, with a limited increased costs. The stiffness should be improved of the underwater structure as far as possible. The grid formation should be used for the roof.
出处
《中国三峡建设》
1998年第3期14-17,共4页
China Three Gorges Construction
