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span by span
    Yuao Bridge is a continuous prestressed concrete box beam bridge with 8 spans. Spans are 2×35 + 2×24 + 24.5 + 2×25 + 24.915m. This bridge was constructed by using low box beam with large cantilever, two way prestess, prestressing and tensioning with large tonnage span by span.
    渝澳大桥主引桥为8孔等截面预应力混凝土连续箱梁桥,跨径组合为2×35+2×34+24.5+2×25+24.915m,采用了大悬臂低箱梁、双向预应力以及大吨位预应力逐跨施工逐跨张拉工艺,使得结构轻颖、施工迅速、造价低廉。
    The paper states the development and construction characteristics of assembling bridges by precast segments span by span as well as the precast method of segmental beams etc.
    本文论述了预制节段逐跨拼装桥梁的发展、施工特点及节段梁的预制方法等。
    In the light of Shanghai Xinliuhe Bridge Project it introduces mainly the design characteristics of precast segmental beams, the application of construction method of using machine for splicing span by span and prestressed new material and new process as well as the analysis of the main testing result of precast segmental beams.
    并结合上海市新浏河大桥工程重点介绍了预制节段梁的设计特点 ,采用架桥机实现逐跨拼装的施工方法、预应力新材料新工艺的应用 ,以及预制节段梁主要试验成果分析
    Application of Whole Span Beam Pre-fabricating and Span by Span Erecting Method in Qinshen Passenger Railway
    整跨预制、逐跨架设工法在秦沈客运专线上的应用探索
    Blasting Demolition of a Large Workshop Collapsed Transversely Span by Span
    大面积厂房的横向逐跨坍塌爆破拆除
    Each span is 50 metres long, which was constructed with span by span method from south to north.
    每跨50米,纵横向预应力体系; 采用移动模架法自南向北逐跨施工。
    An example of the creep analysis for a continuous girder bridge constructed with span by span method is also given to prove its accuracy and practicable.
    最后给出了一个逐跨施工连续梁的徐变分析算例 ,验证了分析方法的正确性
    In a complicated environment, a large workshop with special structure collapsed transversely span by span was blasting demolished.
    介绍在复杂环境下 ,对一特殊结构大面积厂房采用横向逐跨坍塌爆破拆除的方案。
    Based on the practice and summary of Hu-Min Viaduct (II) construction in Shanghai by erecting prefabricated segments span by span, des-cription is made of the mechanism and way of computer-aided control (CAC) over the load transformation, a key step of workmanship.
    通过对上海市沪闵路高架道路二期工程中预制节段逐跨拼装施工的实践和总结,在介绍预制节段逐跨拼装施工的基础上,叙述了运用荷载转换这一关键工艺进行计算机辅助控制的原理与方法。
 

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