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STRUCTURAL ANALYSIS OF PRETENSIONED CONCRETE PILES

机译:预应力混凝土桩的结构分析

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The structural analysis of prestressed concrete piles is similar to the analysis of reinforced concrete columns in many respects but there are important detail differences. The construction of the M- P (moment-thrust interaction) curve requires consideration of the stress-strain curve for strand and of the substantial initial strains in the steel and concrete. When considering length effects, it will be found that much of the length of a prestressed pile will remain uncracked, which contributes significantly to its stability against buckling.
机译:预应力混凝土桩的结构分析在很多方面与钢筋混凝土柱的分析相似,但是在细节上存在重要差异。 M-P(弯矩-推力相互作用)曲线的构造需要考虑钢绞线的应力-应变曲线以及钢和混凝土中的基本初始应变。当考虑长度影响时,将发现预应力桩的大部分长度都保持开裂状态,这极大地提高了其抗屈曲的稳定性。

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