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斜拉桥锚固段环向预应力钢绞线伸长量误差分析
引用本文:胡益良.斜拉桥锚固段环向预应力钢绞线伸长量误差分析[J].科学技术与工程,2012,12(5):1199-1202.
作者姓名:胡益良
作者单位:华南理工大学土木与交通学院,广州,510640
摘    要:通过广州大桥索塔锚固段环向预应力钢绞线伸长量试验,发现后张法“U”形预应力钢绞线的实际伸长量大于理论限值,同时国内类似试验研究资料也表明对于后张法“U”形预应力钢绞线来说是一种普遍现象。文中分析了产生此类问题的原因,并提出了相应的建议,可供工程实践参考。

关 键 词:斜拉桥  环形预应力束  伸长量  误差分析
收稿时间:2011/11/21 0:00:00
修稿时间:2011/11/21 0:00:00

Error Analysis of elongation on the annular Prestressing steel Strands of Anchorage Zone of Cable-stayed Bridges
huyiliang.Error Analysis of elongation on the annular Prestressing steel Strands of Anchorage Zone of Cable-stayed Bridges[J].Science Technology and Engineering,2012,12(5):1199-1202.
Authors:huyiliang
Institution:(School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,P.R.China)
Abstract:Through the research on the elongation test of the annular Prestressing steel Strands by the Anchorage Zone of Guangzhou Bridge, it can be Found that the elongation of the tensioned U-shaped prestressing steel strands is greater than the actual theoretical limit, and the domestic trial research datas also showed that it is a common phenomenon to the tensioned U-shaped prestressing steel strands. This paper analyzes the reasons for such problems. Some Relative suggestions are proposed, they can be used in engineering practice.
Keywords:cable-stayed bridge the annular prestressing steel strands elongation error analysis
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