scholarly journals Simulating the model for consolidation of short bored pile in pure friction soil media

2021 ◽  
Vol 8 (1) ◽  
pp. 066-081
Author(s):  
eghna Pathak ◽  
Ravindra Pathak ◽  
Jagdish Narayan Vyas
Keyword(s):  
Numerical Study ◽  
Close Correlation ◽  
Model Solution ◽  
Axial Loads ◽  
Analysis Software ◽  
Load Bearing Capacity ◽  
Element Analysis ◽  
Bored Pile ◽  
Soil Media ◽  
Consolidation Analysis

In this paper, the analysis of a numerical study for consolidation analysis of short bored pile subjected to axial loads is presented. An analysis of short-bored pile is performed using finite element analysis software Abaqus CAE with the base of procured experimental data in sand media and a comparative analysis on Ansys FEA. Three models in combination of pile and footing system were developed by the application of incremental axial load for which the displacement upon each load was analyzed taking in consideration the stresses and strains. A parametric study was conducted to study the effect of load on and it’s observed displacement on the pile with or without footing. A close correlation is found between the results obtained by the FE models and the Experimental Model solution. The results indicates that the load bearing capacity of pile–footing system increases drastically when both acts together instead of acting individually.

Buildings on the Slope Considering Effects of Uneven Settlement of Single Pile on the Structure Research

2011 ◽  
Vol 368-373 ◽  
pp. 1949-1954
Author(s):  
Li Ming Wu ◽  
Zi Jian Wang
Keyword(s):  
Finite Element Analysis ◽  
Pile Foundation ◽  
Normal Load ◽  
Single Pile ◽  
Analysis Software ◽  
Load Bearing Capacity ◽  
Element Analysis ◽  
Structural Impact ◽  
Different Parts ◽  
Structure Research

Buildings built on the slope and slope, in order to avoid a lot of digging embankment. According to the slope of potential changes in pile foundation of General unequal height. In the design of such buildings are generally the superstructure and Foundation when considered separately, under normal load bearing capacity and deformation is to meet to coordinal requirements.Changes in water level cause of slope sliding, so lead to individual settlement, the class meets the deformation of the structure of coordination of the Department of architecture and how the force is not known. Based on this, to a shore in 8 layers of pile foundation in the framework, for example, using finite element analysis software ANSYS in different parts of a single settlement on the basis of structural impact.

scholarly journals A Numerical Study on the Control of Horizontal Cracking at the Ends of BS22 Hollow-type PC-girders Utilizing Midas FEA

2021 ◽  
Vol 1996 (1) ◽  
pp. 012011
Author(s):  
Abdul Khaliq Karimi ◽  
Bashir Ahmad Aasim ◽  
Jun Tomiyama
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Concentration ◽  
Numerical Study ◽  
Crack Size ◽  
Analysis Software ◽  
Principal Stresses ◽  
Element Analysis ◽  
Crack Penetration ◽  
Strand Debonding

Abstract When the prestressing forces transfer from PC-strands to concrete, a region of stress concentration develops at the ends of pretensioned girders, which often results in horizontal cracking during or just after the detensioning process. In this study, a hollow PC-girder was modeled utilizing a Finite Element Analysis software Midas FEA to identify the horizontal cracking locations in terms of the principal stresses at the end-zone of the hollow PC-girder. Strand-debonding and placing end-zone reinforcements were hired in this work by introducing four cases. The only strand-debonding method could not prevent horizontal end crack penetration. Though the end-zone reinforcements were placed alongside the strand-debonding, this combination could reduce principal stresses to a level that could bring the crack size to a negligible range.

Finite element analysis of mixed-in-place (MIP) columns supporting excavations in slopes considering tension-softening

2020 ◽  
Vol 57 (6) ◽  
pp. 785-800
Author(s):  
Kamchai Choosrithong ◽  
Helmut F. Schweiger ◽  
Roman Marte
Keyword(s):  
Finite Element ◽  
Numerical Study ◽  
Attractive Alternative ◽  
Structural Elements ◽  
Element Analysis ◽  
Support Measure ◽  
Bored Pile ◽  
Tension Softening ◽  
Ground Conditions ◽  
Additional Support

The use of mixed-in-place (MIP) columns can be considered as an attractive alternative to sheet pile, diaphragm or bored pile walls for supporting deep excavations, even in difficult ground conditions. In this paper, results from a numerical study based on a case history are presented, where MIP columns are used to support an excavation in a slope. The special feature of this project is that tied-back anchors were not feasible as an additional support measure because structural elements were not allowed to be installed within the neighbouring ground. Thus, the MIP columns were placed in such a way that they formed an arch, including buttresses capable of transferring the load acting on the backside of the wall into the ground. In this study, an advanced constitutive model for the MIP columns is applied to capture the development of possible cracking. Variations in geometry have been performed to investigate the potential for optimization. Finally, some analyses have been conducted to show that a design of such structures compatible with Eurocode 7 requirements is perfectly feasible by means of the finite element method.

Research of Bored Pile Bearing Capacity with Mud Layer

2011 ◽  
Vol 255-260 ◽  
pp. 3797-3801
Author(s):  
Xiang Dong Zhang ◽  
Xue Lei Zhang ◽  
Meng Wang ◽  
Hong Hai Zhang
Keyword(s):  
Bearing Capacity ◽  
Large Scale ◽  
Major Type ◽  
Analysis Software ◽  
Empirical Formulas ◽  
Element Analysis ◽  
Bored Pile ◽  
Bored Piles ◽  
Dimensional Simulation ◽  
Different Thickness

Bored pile as a major type of foundation, during the construction process, hole collapse or weak air tightness of catheter leads mud layers or broken pile, which makes bearing capacity reduction or even complete loss leading differential settlement of building foundations. In this paper, two-dimensional simulation of the pile has been made by finite element analysis software ADINA. By using of large-scale numerical analysis software MATLAB, the data obtained has been fitted deriving empirical formulas, which researches how different thickness and depth of mud layers impact on bearing capacity of bored piles, having a certain engineering applications.

Dynamic Analysis of DVG 850 High-Speed Machining Center

2012 ◽  
Vol 487 ◽  
pp. 203-207
Author(s):  
Gong Xue Zhang ◽  
Xiao Kai Shen
Keyword(s):  
High Speed ◽  
Simulation Analysis ◽  
Response Analysis ◽  
Improved Method ◽  
Analysis Software ◽  
Element Analysis ◽  
Harmonic Response ◽  
Machining Center ◽  
Calculation Results ◽  
Harmonic Response Analysis

Purpose, with the application of workbench finite element analysis software, get the analysis results of DVG 850 high-speed vertical machining center via the modal analysis and harmonic response analysis. Use the calculation results for reference, put forward the improved method, and prove the credibility of the simulation analysis by testing DVG 850 prototype.

scholarly journals Design and analysis of concrete-filled tubular flange girders under combined loading

2021 ◽  
pp. 136943322110015
Author(s):  
Rana Al-Dujele ◽  
Katherine Ann Cashell
Keyword(s):  
Finite Element ◽  
Axial Force ◽  
Failure Modes ◽  
Numerical Study ◽  
Combined Loading ◽  
Torsional Stiffness ◽  
Fe Model ◽  
Combined Effects ◽  
Element Analysis ◽  
Hollow Section

This paper is concerned with the behaviour of concrete-filled tubular flange girders (CFTFGs) under the combination of bending and tensile axial force. CFTFG is a relatively new structural solution comprising a steel beam in which the compression flange plate is replaced with a concrete-filled hollow section to create an efficient and effective load-carrying solution. These members have very high torsional stiffness and lateral torsional buckling strength in comparison with conventional steel I-girders of similar depth, width and steel weight and are there-fore capable of carrying very heavy loads over long spans. Current design codes do not explicitly include guidance for the design of these members, which are asymmetric in nature under the combined effects of tension and bending. The current paper presents a numerical study into the behaviour of CFTFGs under the combined effects of positive bending and axial tension. The study includes different loading combinations and the associated failure modes are identified and discussed. To facilitate this study, a finite element (FE) model is developed using the ABAQUS software which is capable of capturing both the geometric and material nonlinearities of the behaviour. Based on the results of finite element analysis, the moment–axial force interaction relationship is presented and a simplified equation is proposed for the design of CFTFGs under combined bending and tensile axial force.

scholarly journals On Hydromechanical Interaction during Propagation of Localized Damage in Rocks

Minerals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 162
Author(s):  
A.A. Jameei ◽  
S. Pietruszczak
Keyword(s):  
Numerical Study ◽  
Fluid Pressure ◽  
Implicit Time ◽  
Integration Scheme ◽  
Internal Length ◽  
Element Analysis ◽  
Equivalent Permeability ◽  
Mechanical Coupling ◽  
Splitting Test ◽  
Localized Damage

This paper provides a mathematical description of hydromechanical coupling associated with propagation of localized damage. The framework incorporates an embedded discontinuity approach and addresses the assessment of both hydraulic and mechanical properties in the region intercepted by a fracture. Within this approach, an internal length scale parameter is explicitly employed in the definition of equivalent permeability as well as the tangential stiffness operators. The effect of the progressive evolution of damage on the hydro-mechanical coupling is examined and an evolution law is derived governing the variation of equivalent permeability with the continuing deformation. The framework is verified by a numerical study involving 3D simulation of an axial splitting test carried out on a saturated sample under displacement and fluid pressure-controlled conditions. The finite element analysis incorporates the Polynomial-Pressure-Projection (PPP) stabilization technique and a fully implicit time integration scheme.

Sign in / Sign up

Export Citation Format

Share Document