PHC管桩轴力-抗弯承载力关系国内外标准对比
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Comparison on relations of axial-bending capacities for PHC piles in domestic and international standards
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    摘要:

    在国家“一带一路”倡议的推进下,先张法预应力高强混凝土(PHC)管桩全面在海外各类工程项目中应用,然而海外PHC管桩的技术标准和设计习惯与国内存在较大差异,这使得以国内标准为基础的PHC桩力学性能难以为国外设计人员所适应。比较了国内混凝土结构标准与常用美标、英标、欧标及日标中对于混凝土结构及桩基的相关规定,着重对与设计关系密切的PHC管桩轴力-弯矩承载力关系进行计算和对比。经过梳理发现,中国标准的简化计算公式在降低部分精度的情况下,可以给出较为完整光滑的轴力-弯矩承载力关系曲线;各国标准对于管桩轴向承载力设计值的规定有所不同,依照国外标准很难给出较为完整光滑的曲线。

    Abstract:

    Under the promotion of the national “One Belt and One Road” initiative,the pretension prestressed high-strength concrete (PHC) pipe pile has been comprehensively applied in various overseas engineering projects. However,there are large differences between the specifications and design theories in foreign areas,which makes the mechanical properties of PHC piles based on Chinese standards are difficultly be adapted by the designers abroad.This paper compares the concrete structures and piles prescribed in the standards of China,America,British,Europe and Japan,especially the axial-bending capacities for PHC piles,which are mostly significant to the design.After comparisons,it is found that the simplified equations given by Chinese standards,at the expenses of some accuracy,can draw smooth curves for axial-bending capacities of PHC piles.However,due to the large differences of the definition of design axial capacities in different foreign standards,it is hard to give integrated and smooth curves.

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王 衔,邱 松,富 坤. PHC管桩轴力-抗弯承载力关系国内外标准对比[J].水运工程,2023(7):196-204.

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  • 在线发布日期: 2023-07-13
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