摘要
对预应力混凝土连续箱梁在施工阶段各工况下0#块顶板、底板、腹板和横隔板作了空间应力分析,计算中计入了收缩、温度和时间效应的影响,对不同施工阶段作了对比分析,从而获得施工过程次应力的准确分布规律,为0#块优化设计积累了经验。
This paper makes a comprehensive analysis of segment No. 0 of the continuous box girders bridge, including analyses of 3 D stress on the deck, web and bottom plate of the segment. Since shrinkage, temoerature and time-dependent effects are considered during the calculation of 3D stress, this paper gets accurate secondary stress distribution pattern during the construction and provide a reliable foundation for optimal design of the segment.
出处
《石家庄铁道学院学报》
2007年第2期22-25,共4页
Journal of Shijiazhuang Railway Institute
关键词
预应力混凝土
连续箱梁桥
应力分析
pre-stressed concrete
continuous box girders bridge
stress analysis
