大直径离心钢管混凝土管桩抗弯承载力研究

大直径离心钢管混凝土管桩抗弯承载力研究 English Version

详细信息

1. Shanghai Third Harbour Engineering Science & Technology Research Institute Co., Ltd., Shanghai 200032, China; 2. CCCC Third Harbor Engineering Co., Ltd., Shanghai 200032, China

摘要: 结合直径 800 mm 的离心钢管混凝土管桩（ TSC 桩）的抗弯原型试验,检验现有普通 TSC 桩理论对大直径 TSC 桩的适用性,并对含钢率与桩身极限承载力的关系做初步探讨。抗弯试验结果表明,普通 TSC 桩理论基本适用于大直径 TSC 桩；对含钢率的影响分析表明,在小范围内含钢率与 TSC 桩抗弯极限承载力基本成线性关系,可以采用提高含钢率的方法提高 TSC 桩抗弯极限承载力。
- 大直径 /
- 离心钢管混凝土管桩 /
- TSC 桩 /
- 抗弯承载力 /
- 含钢率
Abstract: Based on the bending prototype tests on the thin-wall steel and spun concrete composite piles (TSC pile) 800 mm in diameter, the applicability of the existing ordinary TSC pile theory to large-diameter TSC piles is verified, and the relationship between the steel ratio and the ultimate bearing capacity is preliminarily studied. The bending test results show that the ordinary TSC pile theory can be basically applied to the large-diameter TSC piles. Whereas the impact analysis of the steel ratio indicats that a linear relationship between the steel ratio and the ultimate flexural capacity can be concluded within a small range, which shows that the ultimate flexural capacity of TSC piles can be improved by increasing the steel ratio.
- large diameter /
- precast thin-wall steel and spun concrete composite pile /
- TSC pile /
- flexural capacity /
- steel ratio

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