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世界首次在CFRD面板上施加预应力的试验实践
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(葛洲坝集团 宜昌 443002)

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任尚卿

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TU757.4

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The world's first test practice of applying prestress on CFRD panels
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(Gezhouba Group Yichang 443002, China)

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    摘要:

    自上世纪30年代初美国修建世界第一座CFRD以来,已80多年从未有过在CFRD面板上施加预应力的报道。笔者在2008年香港国际CFRD经验交流会上提出,在钢筋混凝土面板上施加预压应力,藉此达到提高抗裂性能、减少钢筋用量,这一创新提议得到与会专家的赞同。经三年多来在葛洲坝集团伊犁水电投资公司、水利部新疆水利厅勘测设计研究院、天津冶金中兴盛达公司及柳州OVM公司的大力支持下,通过斯木塔斯水电站挡水大坝——CFRD面板试验获得成功。本文简要地介绍大坝及施加预应力情况,并在总结实验的基础上提出改正的意见。

    Abstract:

    Since the world's first CFRD was built in the United States in the early 1930s, there have been no reports of prestressing on CFRD panels for more than 80 years. In the 2008 Hong Kong International CFRD Experience Exchange meeting, the author proposed to apply pre-compressive stress on the reinforced concrete panel to improve the cracking resistance and reduce the amount of reinforcement, and this innovative proposal was approved by the experts. In more than three years, with the strong support of Gezhouba Group Yili Hydropower Investment Company, Xinjiang Water Resources Department Survey and Design Research Institute, Tianjin Metallurgical Zhongxingda Company and Liuzhou OVM Company, the CFRD panel test of Simutas Hydropower Station has been successful. This paper briefly introduces the dam and the application of prestress, and puts forward some suggestions on correction based on the summary of experiments.

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Shangqing Ren The world's first test practice of applying prestress on CFRD panels. Prestress Technology 2012,16(06):28-32. 10.59238/j. pt.2012.06.005

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  • 在线发布日期: 2023-08-06
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