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Analysis of Concrete Shrinkage and Creep Stresses of Long-Span Composite Box Girder Cable-Stayed Bridges
Author(s): 
Pages: 37-41
Year: Issue:  z1
Journal: WORLD BRIDGES

Keyword:  组合桥梁斜拉桥组合箱梁徐变混凝土收缩;
Abstract: 以东海大桥主航道双塔单索面斜拉桥为背景,采用有效弹性模量法对大跨度组合箱梁斜拉桥的混凝土收缩与徐变应力进行分析计算.计算结果表明混凝土徐变对钢筋混凝土桥面板的应力影响不大,但是对钢梁应力的影响很大,混凝土徐变产生的钢梁应力增量可以达到钢材容许应力的30%以上.
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