松花江大桥0^#块空间应力分析  

Analysis of 3 D Stress at Segment No.0 of Songhuajiang Bridge

作　　者：孙洪亮[1] 王慧东[1] 

机构地区：[1]石家庄铁道学院土木工程分院,河北石家庄050043

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

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.

关 键 词：预应力混凝土 连续箱梁桥 应力分析 

分 类 号：U467.48[机械工程—车辆工程]