The points of hoisting design of semi-span gantry crane are analyzed. The construction schemes, methods and safety of T-shaped beam hoisting are introduced.

分析了半跨龙门吊的设计安装要点，着重介绍了T梁的吊装施工组织方案、施工方法及安全技术保证措施。

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The calculation on relative parameters for strain-pull controlling of T-style beam bridge prestress, can provide reference for construction in future.

对T型梁桥梁板预应力张拉控制相关参数的计算，可为今后的施工提供参考。

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Combined with the construction practice and theory study, the paper introduced t beam quality technology, attentions, methods, principle and experience of vibration.

通过施工实践，结合理论学习，就保证T梁质量的关键工艺振捣进行了介绍，并就振捣注意事项、方法、原则和经验进行了阐述。

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