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-  2018 

横缝竖向止水布设对轴流式机组厂房应力的影响 Influence of vertical water stop layout for transverse joint on stress of axial flow unit hydropower house

Keywords: 横缝竖向止水,轴流式机组,电站厂房,有限元法,结构应力

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Abstract:

以轴流式机组厂房中间坝段为研究对象,计算分析电站厂房在不同横缝竖向止水布设形式下进出水口关键部位的应力,探究其规律性.研究结果表明,横缝上游止水设置在进水口偏下游侧、横缝下游竖向止水设置在出水口偏上游侧,可有效缓解厂房结构进出水口关键部位的应力.综合考虑结构应力及水电站厂房的适用性等各个因素,建议将上游竖向止水设置在距离厂房坝段上游面(0.7~0.9)B(B为厂房坝段上游面至胸墙下游面最小距离)处,下游竖向止水设置在距离下游面0.9 D(D为厂房坝段下游面至下游挡墙上游面的最小距离)处,可最大程度上降低结构的应力.研究成果为类似厂房结构横缝竖向止水布设提供参考

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