Analysis of curved incrementally launched box concrete bridges using the Transfer Matrix Method
Analysis of curved incrementally launched box concrete bridges using the Transfer Matrix Method
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DOI：
10.1080/15732480701510445
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发表时间：
2007-08
影响因子：
0.6
通讯作者：
M. Arici;M. Granata
中科院分区：
文献类型：
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作者：
M. Arici;M. Granata
目前，混凝土连续梁桥普遍采用顶推施工技术。在施工过程中，这些桥梁的静力方案不断变化，桥墩上方桥面的推进产生了与运营中相当不同的临时应力。针对混凝土独箱梁，提出了一种曲线顶推施工阶段分析方法。一种基于传递矩阵法(TMM)的程序已被扩展到曲线梁，允许工程师在整个发射过程中估计水平曲率的影响。TMM方法已经开发用于直线发射桥梁。该程序允许工程师进行参数研究，以优化曲线混凝土下水桥梁的结构设计。
The incrementally launching technique is today widely used for the construction of continuous concrete bridges. During construction, the static scheme of these bridges varies continuously, with the advance of the deck above piers producing temporary stresses rather different from those occurring in service. An approach to analyse the construction phases of curved incrementally launched bridges is presented for concrete single box girder. A procedure based on the Transfer Matrix Method (TMM), already developed for straight launched bridges, has been extended to curved beams, allowing engineers to estimate the effects of horizontal curvature during the entire launching process. This procedure allows engineers to carry out parametric studies for the optimization of structural design of curved concrete launched bridges.