A Simplified Method to Estimate the Response of Single Piles to Lateral Loads

2013 ◽  
Author(s):  
Goh Kok Hun ◽  
Zhang Yunhuo ◽  
Cham Wee Meng
Keyword(s):  
Lateral Loads ◽  
Simplified Method ◽  
Single Piles

Simplified analysis of wall-frame structures

1978 ◽  
Vol 5 (2) ◽  
pp. 262-273 ◽  
Author(s):  
O. Moselhi ◽  
P. Fazio ◽  
Z. Zielinski
Keyword(s):  
Orthotropic Plate ◽  
Rapid Determination ◽  
Frame Structures ◽  
Direct Integration ◽  
Lateral Loads ◽  
Actual Structure ◽  
Simplified Method ◽  
Internal Forces ◽  
Simplified Analysis

A simplified method is presented for the analysis of planar, uniformly perforated walls under the action of lateral loads. The method is based on replacing the perforated wall by an elastically equivalent orthotropic plate. The principle of minimum total complementary potential energy is then used to determine stresses and displacements in the equivalent plate. Internal forces in the actual structure are obtained by direct integration of these stresses. An example is worked out to illustrate the application of the method and its accuracy. Design curves are presented for the rapid determination of internal forces.

Elastoplastic solutions for single piles under combined vertical and lateral loads

2011 ◽  
Vol 18 (1) ◽  
pp. 216-222 ◽  
Author(s):  
Lei Zhang ◽  
Xiao-nan Gong ◽  
Zhong-xuan Yang ◽  
Jian-lin Yu
Keyword(s):  
Lateral Loads ◽  
Single Piles ◽  
Elastoplastic Solutions

scholarly journals A numerical technique for modeling the behavior of single piles in unsaturated soils

2021 ◽  
Vol 337 ◽  
pp. 03012
Author(s):  
Xinting Cheng ◽  
Sai K. Vanapalli
Keyword(s):  
Unsaturated Soils ◽  
Numerical Technique ◽  
Soil Mechanics ◽  
Nonlinear Behavior ◽  
Pile Foundations ◽  
Engineering Practice ◽  
Lateral Loads ◽  
Element Analysis ◽  
Promising Tool ◽  
Single Piles

Pile foundations are widely used in both saturated and unsaturated soils. In certain scenarios, these foundations are subjected to combined vertical and lateral loads. Conventionally, saturated soil mechanics principles are routinely used for the design of pile foundations in unsaturated soils. Such approaches contribute to unreliable estimates of the behavior of piles due to ignoring the influence of matric suction. In this paper, a comprehensive numerical technique is proposed for simulating the behavior of single piles subjected to combined vertical and lateral loads in unsaturated soils by taking account of the nonlinear behavior of shear strength and the elastic modulus of unsaturated soils. This is achieved through a subroutine that was developed for use in the ABAQUS software. The proposed numerical method provided reliable prediction of the vertical load-displacement behavior of a published model pile tested in saturated and unsaturated sands. In addition, 3D finite element analysis was extended to simulate the influence of variations in ground water table (GWT) on the vertical bearing capacity and the influence of vertical loads on lateral response of piles. The proposed numerical technique is a promising tool for implementing the state-of-the-art understanding of the mechanics of unsaturated soils into conventional engineering practice.

Flexibility coefficients and interaction factors for pile group analysis

1986 ◽  
Vol 23 (4) ◽  
pp. 441-450 ◽  
Author(s):  
Bahaa El Sharnouby ◽  
Milos Novak
Keyword(s):  
Load Distribution ◽  
Group Analysis ◽  
Vertical Plane ◽  
Ground Surface ◽  
Pile Group ◽  
Lateral Loads ◽  
Pile Groups ◽  
Group Evaluation ◽  
Interaction Factors ◽  
Single Piles

Flexibility coefficients of single piles and interaction factors established for groups of two piles are presented to facilitate analysis of arbitrary pile groups exposed to static horizontal loads. Such an analysis may yield pile group flexibility, stiffness, deflection, and distribution of loads on individual piles. The data given are complete in that they include horizontal translation, rotation in the vertical plane, and cross effects between the two, making it possible to establish complete stiffness and flexibility matrices of pile groups provided with either rigid caps or arbitrarily flexible caps. Homogeneous, parabolic, and linear (Gibson's) soil profiles are considered and the piles may have a free length sticking above the ground surface. The methods of group evaluation based on superposition of interaction factors are reviewed and compared and numerical examples are given. Key words: piles, pile groups, lateral loads, flexibility, stiffness, load distribution.

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