重庆交通大学学报（自然科学版） ›› 2005, Vol. 24 ›› Issue (4): 31-34.
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张永水
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ZHANG Yong-shui
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摘要： 砼时问效应对大跨拱桥结构性能有较大的影响，本文结合许沟大桥的工程实践，分析了砼徐变、收缩对主拱 圈的内力与变形以及截面应力重分布的影响，讨论了砼收缩对主拱圈分层浇筑自应力的影响。分析结果可为今后 同类桥梁的设计、施工提供指导
关键词: 大跨度钢筋砼拱桥, 砼收缩、徐变, 应力重分布, 自应力
Abstract: The aging effect of concrete influences structural behavior of long-span arch. the effects of creep and shrinkage of concrete on inner force, deformation and stress redistribution of main arch, the effects of shrinkage of concrete on self-stress of concreting in lifts are discussed-for example, Xugou bridge. The results can be reference for other bridges.
Key words: long-span RC arch, creep and shrinkage of concrete, stress redistribution, self-stress
中图分类号:
U444
张永水. 大跨RC有支架施工拱桥砼时效分析[J]. 重庆交通大学学报（自然科学版）, 2005, 24(4): 31-34.
ZHANG Yong-shui. Analysis of concrete aging effect in long-span RC arch bridge[J]. Journal of Chongqing Jiaotong University(Natural Science), 2005, 24(4): 31-34.
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http://xbzk.cqjtu.edu.cn/CN/Y2005/V24/I4/31
