Numerical Analysis of Buckling Behavior of Concrete Piles Under Axial Load Embedded in Sand

作者：Jesmani Mehrab; Nabavi Seyede Hoda; Kamalzare Mehrad^*

来源：Arabian Journal for Science and Engineering, 2014, 39(4): 2683-2693.

DOI：10.1007/s13369-014-0970-5

• Buckling capacity
• Concrete piles
• Axial load
• Numerical modeling

Piles that have been placed in loose and week soils and at the same time are under heavy loads can be in danger of buckling. These piles can be particularly found under bridges and pier where scouring makes the buckling an inevitable issue. Being aware of this fact, lots of experimental investigations have been done to study the complex buckling behavior of piles. But the results suffered from the experiments%26apos; limitations. On the other hand, very few numerical investigations have been done to study buckling behavior of piles, particularly under axial loads. In this research three-dimensional finite element analyses have been performed to study the buckling behavior of fully and partially embedded concrete piles. Investigations have been done only for sandy soils and only the axial load was applied to piles. Results of the numerical model have been verified by previous experimental results. Sensitivity analysis has been done for different pile parameters such as total and unsupported length of pile, and different soil parameters such as internal friction angle, unit weight and module of elasticity. Eventually, effect of each parameter on the buckling behavior of piles has been presented and discussed.

• 出版日期2014-4