scholarly journals Study on Bearing Capacity of Tank Foundation with Alternatively Arranged Vortex-Compression Nodular Piles

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5273
Author(s):  
Chun-Bao Li ◽  
Gao-Jie Li ◽  
Ran-Gang Yu ◽  
Jing Li ◽  
Xiao-Song Ma
Keyword(s):  
Finite Element ◽  
Bearing Capacity ◽  
Pile Foundation ◽  
Three Dimensional ◽  
Solid Model ◽  
Test Results ◽  
Finite Element Software ◽  
The Impact ◽  
Nodular Pile ◽  
Vortex Compression

Types of tapered piles are widely applied in tank foundation consolidation, but their inherent deficiencies in design and construction limit their further promotion. Vortex compression pile is a novel nodular pile. Compared with the traditional equal-section pile, vortex compression nodular pile is featured by stronger bearing capacity and slighter settlement. In this paper, the model test results showed that vortex compression nodular pile can greatly improve the bearing capacity and reduce the settlement. Through the finite element software ABAQUS analysis the bearing characteristics of equal-section pile foundation and vortex-compression nodular pile foundation were compared. The three-dimensional solid model was established by ABAQUS finite element software. The impact of cushion modulus, cushion thickness, vertical load, pile modulus, soil modulus around the pile on the bearing capacity of the vortex-compression nodular pile foundation were studied.

Investigation of Bearing Characteristics of High-Cap Pile Foundation under Inclined Load

2018 ◽  
Vol 777 ◽  
pp. 559-563
Author(s):  
Yu Zhuo Jia ◽  
Guo Zheng Sun ◽  
Chang Qing Li ◽  
Long Long Tian
Keyword(s):  
Finite Element ◽  
Bearing Capacity ◽  
Pile Foundation ◽  
Yellow River ◽  
Three Dimensional ◽  
Pile Group ◽  
Element Model ◽  
Inclined Load ◽  
Finite Element Software ◽  
Inclined Angle

To analyze the characteristics of bearing capacity of high-cap pile foundation under inclined load and investigate the influence of vertical and horizontal component on the foundation at different loading angles, based on the background of the Yellow River Crossing project, a three-dimensional finite element model of high-cap foundation is simulated and analyzed with the finite element software ABAQUS. The conclusions are shown as follows: Under the same displacement condition, when the load inclination angle α from 0°(horizontal load) to 80°, the horizontal direction bearing capacity of the foundation increases from 684.8kN to 759.9kN, increases by 10.97%. Expands of vertical load component will affect the pile group effect, the shear force of the back row piles increases with the load inclined angle.

Numerical Simulation of the Kinetic Energy Projectile Oblique Penetration into the Concrete

2014 ◽  
Vol 989-994 ◽  
pp. 982-985
Author(s):  
Jun Chen ◽  
Xiao Jun Ye
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Kinetic Energy ◽  
Three Dimensional ◽  
Test Results ◽  
Destruction Process ◽  
3D Finite Element ◽  
Finite Element Software ◽  
Simulation Results ◽  
Target Characteristics

ANSYS-LS/DYNA 3D finite element software projectile penetrating concrete target three-dimensional numerical simulation , has been the target characteristics and destroy ballistic missile trajectory , velocity and acceleration and analyze penetration and the time between relationship , compared with the test results , the phenomenon is consistent with the simulation results. The results show that : the destruction process finite element software can better demonstrate concrete tests revealed the phenomenon can not be observed , estimated penetration depth and direction of the oblique penetration missile deflection .

scholarly journals Bearing Capacity of Circular Footing on Sand Deposit

2015 ◽  
Vol 773-774 ◽  
pp. 1518-1523 ◽  
Author(s):  
Aminaton Marto ◽  
Mohsen Oghabi ◽  
Nor Zurairahetty Mohd Yunus
Keyword(s):  
Finite Element ◽  
Bearing Capacity ◽  
Experimental Test ◽  
Static Load ◽  
Sandy Soils ◽  
Soil Parameters ◽  
Test Results ◽  
Finite Element Software ◽  
Sand Deposit ◽  
Circular Footing

Bearing capacity and settlement are two important parameters in geotechnical engineering. The bearing capacity of circular foundations on sandy soils is important to geotechnical practicing engineers. Design of foundations includes soil parameters and bearing capacity of foundation. This paper presents the results of laboratory experimental model tests of circular footings supported on sand deposit under static load. The finite element software Abaqus is used to compare the results. The effects of the relative density of the sand (30%, 50%, and 70%) and the diameter of circular footing (75 mm and 100 mm) are investigated. It can be concluded that the experimental test results fit quite well with the results of numerical method.

Analysis of Influence of Design Parameters on Ultimate Bearing Capacity of the Steel Spatial Tubular Joint

2011 ◽  
Vol 243-249 ◽  
pp. 294-297
Author(s):  
Rui Tao Zhu
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Bearing Capacity ◽  
Plate Thickness ◽  
Ultimate Bearing Capacity ◽  
Design Parameters ◽  
Finite Element Software ◽  
Computing Model ◽  
Tubular Joint ◽  
The Impact

Utilizing general finite element software ANSYS, the finite element computing model of the steel spatial tubular joint is built, which is used to analyze the mechanical properties under dead loads through changing its design parameters. According to the obtained and compared consequences, the different design parameters including stiffening ring thickness, cross-shaped ribbed plate thickness and stiffening ring length exert different influence on ultimate bearing capacity of the steel spatial tubular joint. Specifically, the ultimate bearing capacity under dead loads is affected by setting stiffening ring and changing cross-shaped ribbed plate thickness significantly. In contrast, if the thickness and length of stiffening ring are changed, the impact is insignificant. The results and conclusion can provide reference which is useful to optimize the design of steel spatial tubular joint in such category.

The Finite Element Analysis for Mechanical Properties of Reinforced FRP Pipe Concrete under Axial Compression - Discussing the Impact of Reinforcement Ratio, Concrete Strength

2013 ◽  
Vol 457-458 ◽  
pp. 1517-1522
Author(s):  
Wen Li ◽  
Hai Nan Yan ◽  
Peng Wang ◽  
Xiao Gang Chen ◽  
Li Na Yao
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Constitutive Relations ◽  
Concrete Strength ◽  
Ultimate Bearing Capacity ◽  
Reinforcement Ratio ◽  
Finite Element Software ◽  
The Impact

According to the basic idea of the finite element method, using the finite element software ANSYS to establish the finite element model of the reinforcement FRP pipe concrete under axial compression, introducing the unit selection in the process of building model ,based on the principle of meshing boundary conditions and constitutive relations selected; The significant degree of the model verified by compare with the test results. Analyzed by finite element reinforcement ratio, concrete strength and other factors on the mechanical properties of concrete under axial compression reinforcement FRP pipe, the analysis of the results shows: The increase of reinforcement ratio to improve the point load of the specimens and improve the composite column ultimate bearing capacity, but the reinforcement ratio increase will reduce the binding effect of the FRP pipe; The whole component be improved the strength of concrete can improve the ultimate bearing capacity, but it reduces the mechanical properties of the specimens.

A Type of Bomb Falling Analysis and Reliability Verification

2012 ◽  
Vol 215-216 ◽  
pp. 771-774
Author(s):  
Qiu Xiang Chang
Keyword(s):  
Finite Element ◽  
Reliability Analysis ◽  
Three Dimensional ◽  
Solid Model ◽  
Stress And Strain ◽  
Finite Element Software ◽  
Reliability Verification

Using UG to build a shell of the three-dimensional solid model, using the finite element software on the solid floor is analyzed, the shells fall into 8 drop, respectively, to various forms of stress and strain were compared, and the shells of the reliability analysis.

Soil Restraint Against Lateral and Oblique Motion of Pipes Buried in Dense Sand

2012 ◽  
Author(s):  
Kshama Sundar Roy ◽  
Bipul Hawlader
Keyword(s):  
Finite Element ◽  
Software Package ◽  
Three Dimensional ◽  
Test Results ◽  
Finite Element Analyses ◽  
Dense Sand ◽  
Finite Element Software ◽  
Dimensional Finite Element ◽  
Coulomb Model ◽  
Three Dimensional Finite Element

This paper investigates the soil restraint against lateral and oblique motion of pipes buried in dense sand. A series of two- and three-dimensional finite element analyses are performed for pure lateral and combined axial-lateral relative pipeline/soil displacement. The commercially available finite element software package ABAQUS/Standard is used in numerical analysis. The analyses are performed for two burial depths. The numerical model is verified by comparing with model test results available in the literature. The built-in Mohr-Coulomb model in ABAQUS is used for modeling the soil. It is shown that an advanced soil constitutive model might be required for better modeling of pipe/soil interaction behavior.

Three-Dimensional Dynamic FEM Simulation of Block Temperature Distribution for Fusion Welding Rapid Manufacture Process

2011 ◽  
Vol 228-229 ◽  
pp. 233-236
Author(s):  
Jian Ping Jia ◽  
Shun Ping Yao ◽  
Zheng Qiang Zhu
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Temperature Measurement ◽  
Three Dimensional ◽  
Fem Simulation ◽  
The Body ◽  
Fusion Welding ◽  
Welding Temperature ◽  
Finite Element Software ◽  
The Impact

Due to the establishment of thermal equilibrium is very rare, some cases not possible, so the accuracy of temperature measurement is often difficult to ensure that no one will be allowed or asking for too much more to the transient temperature measurement is difficult. Based on the finite element software ANSYS platform, according to the feature of fusion welding, the impact of heat on the welding and the welding temperature field is simulatd by the Three-Dimensional Dynamic FEM simulation of the ANSYS software. Finite element numerical simulation results with the test weld shape with good consistency, so that the body welding Gauss heat source model is used to simulate the temperature field is reasonable.

The Pile Bearing Capacity Analysis Based on ANSYS and Reliability Analysis

2010 ◽  
Vol 163-167 ◽  
pp. 3015-3022
Author(s):  
Qing Zhi Yan ◽  
Zhan Zhang ◽  
Tai Qiang Liu ◽  
Yan Hua Wang
Keyword(s):  
Finite Element ◽  
Bearing Capacity ◽  
Reliability Analysis ◽  
Interaction Analysis ◽  
Three Dimensional ◽  
Monte Carlo Sampling ◽  
Pile Capacity ◽  
Finite Element Software ◽  
Model Pile ◽  
Element Theory

Based on finite element theory and finite element software ANSYS, this thesis establish three-dimensional pile-soil contact model pile to simulate the pile-soil interaction, analysis the bearing capacity particularity, analysis of different factors on the pile P-S curves. Using ANSYS optimization module Monte Carlo sampling method calculate pile capacity reliability, Simplify the cumbersome process of reliability analysis.

Numerical solutions for strain-softening surrounding rock under three-dimensional principal stress condition

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sheng Yu-ming ◽  
Li Chao ◽  
Xia Ming-yao ◽  
Zou Jin-feng
Keyword(s):  
Finite Element ◽  
Principal Stress ◽  
Stress Condition ◽  
Strain Softening ◽  
Numerical Solutions ◽  
Three Dimensional ◽  
Strength Criterion ◽  
Surrounding Rock ◽  
Flow Rule ◽  
Finite Element Software

Abstract In this study, elastoplastic model for the surrounding rock of axisymmetric circular tunnel is investigated under three-dimensional (3D) principal stress states. Novel numerical solutions for strain-softening surrounding rock were first proposed based on the modified 3D Hoek–Brown criterion and the associated flow rule. Under a 3D axisymmetric coordinate system, the distributions for stresses and displacement can be effectively determined on the basis of the redeveloped stress increment approach. The modified 3D Hoek–Brown strength criterion is also embedded into finite element software to characterize the yielding state of surrounding rock based on the modified yield surface and stress renewal algorithm. The Euler implicit constitutive integral algorithm and the consistent tangent stiffness matrix are reconstructed in terms of the 3D Hoek–Brown strength criterion. Therefore, the numerical solutions and finite element method (FEM) models for the deep buried tunnel under 3D principal stress condition are presented, so that the stability analysis of surrounding rock can be conducted in a direct and convenient way. The reliability of the proposed solutions was verified by comparison of the principal stresses obtained by the developed numerical approach and FEM model. From a practical point of view, the proposed approach can also be applied for the determination of ground response curve of the tunnel, which shows a satisfying accuracy compared with the measuring data.

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