Torsional Elasto-plastic Analysis of Longitudinal Shaped Pile Embedded in Homogeneous Soil

被引：0
|
作者：
Zhang H. [1 ]
Kong G. [1 ]
Zou X. [2 ]
Che P. [3 ]
机构：
[1] Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing
[2] College of Civil Engineering, Hunan University, Changsha
[3] Eastern China Geological & Mining Organization for Non-Ferrous Metals in Jiangsu Province, Nanjing
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2019年 / 46卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Elastoplastic analysis; Longitudinal special-shaped pile; Pile foundation; Torque load;
D O I：
10.16339/j.cnki.hdxbzkb.2019.03.016
中图分类号：
学科分类号：
摘要：
In order to study the torsional behavior of longitudinal special-shaped piles, a longitudinal cross-section pile torsion elasto-plastic analysis model was built in homogeneous soil ground. The model considers variable cross-section of the special-shaped pile, and the pile-soil system along the depth direction is divided into finite segments. Based on the T-φ curve at traditional circular pile top and the torque-angle distribution curves along the pile shaft, the corresponding formula was obtained. The calculation program was run through MATLAB software. The torsional behaviors of longitudinal special-shaped piles and uniform circular piles were comparatively analyzed. The optimum design parameters for tapered pile were analyzed. The results show that the torsional performance is influenced by the top pile diameter obviously. The torsional performances of longitudinal cross-section special-shaped pile are relatively better than those of uniform circular pile with the same concrete usage. The torsional bearing capacity of tapered pile increases with the increase of the shear modulus, diameter, and taper angle, and the torsional bearing capacity is improved to 3~5 times under two times diameter. © 2019, Editorial Department of Journal of Hunan University. All right reserved.
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页码：122 / 129
页数：7
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