A Numerical Study on Lateral Load Response of Caissons in Static Conditions

2020 ◽  
Author(s):  
M. Kumar ◽  
K. Chatterjee
Keyword(s):  
Numerical Study ◽  
Lateral Load ◽  
Load Response ◽  
Static Conditions

Numerical Study of a Multipurpose Power Generator Using the Finite Element Method

2014 ◽  
Author(s):  
J. Agbormbai ◽  
N. Goudarzi ◽  
W. D. Zhu
Keyword(s):  
Finite Element ◽  
Electromotive Force ◽  
Hybrid Electric Vehicle ◽  
Numerical Study ◽  
Fuel Efficiency ◽  
Experimental Studies ◽  
Fixed Number ◽  
Tetrahedral Mesh ◽  
Static Conditions ◽  
Operational Range

Analytical and experimental analyses of a variable electromotive-force generator (VEG) show the advantages of this modified generator in hybrid electric vehicle and wind turbine applications with enhancing the fuel efficiency and expanding the operational range, respectively. In this study, electromagnetic analysis of a modified two-pole DC generator with an adjustable overlap between the rotor and the stator is studied using 3-D finite element simulation in ANSYS. The generator stator is modeled with two opposite pole pieces whose arcs span between 15° to 90° in the counterclockwise direction and −15° to −90° in the clockwise direction. A semicircular cylinder whose arc spans between −90° and 90° is used to model the generator rotor. A tetrahedral mesh is used to provide a solution for changes in the electromotive force at different frequencies and overlap ratios. For a constant electromagnetic flux density and fixed number of coils, the changes in the electromotive force at different overlap ratios between the rotor and the stator are obtained in static conditions. There is a very good correlation between the results from simulation and those from analytical and experimental studies.

Lateral Load Response of Flat‐Plate Frame

1985 ◽  
Vol 111 (10) ◽  
pp. 2149-2164 ◽  
Author(s):  
Jack P. Moehle ◽  
John W. Diebold
Keyword(s):  
Flat Plate ◽  
Lateral Load ◽  
Load Response

Analytical and Experimental Lateral-Load Response of Self-Centering Posttensioned CLT Walls

2017 ◽  
Vol 143 (6) ◽  
pp. 04017019 ◽  
Author(s):  
Tugce Akbas ◽  
Richard Sause ◽  
James M. Ricles ◽  
Ryan Ganey ◽  
Jeffrey Berman ◽  
...  
Keyword(s):  
Lateral Load ◽  
Load Response

Prediction of Lateral Load Response for a Pile Group

1997 ◽  
Vol 1569 (1) ◽  
pp. 36-46 ◽  
Author(s):  
Pedro F. Ruesta ◽  
F. C. Townsend
Keyword(s):  
Test Group ◽  
Pile Group ◽  
Lateral Load ◽  
Load Test ◽  
Pressuremeter Test ◽  
In Situ Test ◽  
Concrete Piles ◽  
Load Response ◽  
Pile Load Test

A full-scale lateral load test of a pile group consisting of 16 (4 by 4) prestressed 76-cm-square concrete piles was conducted at Roosevelt Bridge, Stuart, Florida, during the summer of 1996. Presented are ( a) in situ test results, ( b) various p-y curves from these tests, and ( c) comparisons of various computer predictions (FLPIER, GROUP, and PIGR3D) using p-y curves tempered with results from a single-pile load test. From these comparisons, the best Class A prediction is made for the 16-pile group using FLPIER with nonlinear pile properties; p-y multipliers of 0.8, 0.4, 0.3, and 0.3 for the leading, middle, and trailing two rows, respectively; and dilatometer test—pressuremeter test p-y curves. This prediction suggests that an average load per pile of 280 kN will produce a deflection of 0.1 m (63 kips/pile at a deflection of 3.9 in.) for the test group.

scholarly journals Experimental and Numerical Study on the Winged Pile-Soil Interaction under Lateral Loads

2022 ◽  
Vol 961 (1) ◽  
pp. 012063
Author(s):  
Taha K. Mahdi ◽  
Mohammed. A. Al-Neami ◽  
Falah H. Rahil
Keyword(s):  
Numerical Study ◽  
Ground Level ◽  
Load Resistance ◽  
Lateral Load ◽  
Small Scale ◽  
Lateral Loads ◽  
Cross Sectional ◽  
Soil Stiffness ◽  
Rigid Pile ◽  
Lateral Load Resistance

Abstract Increasing the cross-sectional area of piles leads to an increase in the lateral bearing resistance and reduces displacements near ground level. This increase compensates for the reduction in soil stiffness at the seabed level. Installing wings near the mudline level is one approach for increasing the area of the pile in mudline level. This research paper discusses a number of small-scale laboratory models and FEM models to study the benefit of adding wings on the variation of bearing capacity of laterally pile loaded embedded in sandy soil. To determine the advantages of adding wings to the pile, four embedded ratios (4, 6, 8, 10) were used to model both flexible and rigid pile types with various wing numbers and dimensions. The results revealed that adding wings to the pile improves lateral load resistance and greatly reduces lateral deflection. So, to achieve better resistance, wings must be linked with the pile shaft perpendicular to the lateral load applied nearer the top of the pile head. Increasing the number of wings results in a large increase in lateral pile capacity. The ultimate lateral applied load is proportional to the rise in relative density at the same (L/D) ratio.

EXPERIMENTAL AND NUMERICAL STUDY ON IN-PLANE BEHAVIOR OF BRICK MASONRY WALL PANELS

2011 ◽  
Vol 11 (03) ◽  
pp. 431-450 ◽  
Author(s):  
S. CHITRA GANAPATHI ◽  
A. RAMA CHANDRA MURTHY ◽  
NAGESH R. IYER ◽  
N. LAKSHMANAN ◽  
N. G. BHAGAVAN
Keyword(s):  
Numerical Study ◽  
Plane Deformation ◽  
Lateral Load ◽  
Brick Masonry ◽  
Brick Wall ◽  
Wall Panel ◽  
Displacement Ductility ◽  
Wall Panels ◽  
Experimental Values ◽  
Reduction Factors

This paper presents the details of studies conducted on brick masonry units and wall panels. The investigation includes, compressive strength of brick unit, prisms, flexural strength evaluation, and testing of reinforced brick wall panels with and without opening. Nonlinear finite element analysis (FEA) of brick wall panels with and without opening has been carried out by simulating the actual test conditions. Constant vertical load is applied on the top of the wall panel and lateral load is applied in an incremental manner. The in-plane deformation is recorded under each incremental lateral load. Displacement ductility factors and response-reduction factors have been evaluated based on experimental results. From the experimental study, it is observed that fully reinforced wall panel without opening performed well compared to other types of wall panels in lateral load resistance and displacement ductility. In all the wall panels, shear cracks originated at loading point and moved toward the compression toe of the wall. The force-reduction factors of a wall panel with opening are much less when compared with fully reinforced wall panel with no opening. The displacement values obtained by nonlinear FEA were found to be in good agreement with the corresponding experimental values. The difference in the computed and experimental values is attributed to the influence of mortar joint which was not considered in FEA. The derived response-reduction factors will be useful for adopting elastoplastic design procedures for lateral forces generated due to earthquakes.

Pre-Tensioned Geogrids Reinforced Soil Structures with Face Panels in Fiber Glass

2008 ◽  
Vol 587-588 ◽  
pp. 857-861
Author(s):  
Agostinho Mendonça ◽  
M. Lurdes Lopes
Keyword(s):  
Numerical Study ◽  
New Technology ◽  
Numerical Data ◽  
Reinforced Soil ◽  
Innovative Technology ◽  
Fiber Glass ◽  
Soil Structures ◽  
The Face ◽  
Application Fields ◽  
Static Conditions

This paper presents an innovative technology for soil reinforced structures. The technology is based on the use of pre-tensioned geogrids reinforcements and face panels reinforced with fiber glass. Main technology advantages are: i) the very light face with great variety of geometries, size, color and surface textures; ii) either the face and the reinforcements are corrosion free; iii) the good behavior under seismic actions; iv) reduction of structure horizontal strains due to the pre-tension. First, the state of art on reinforced soil structures is done and then the constituents of the new technology are presented followed by the reference to the main theoretical principles considered in its conception. Secondly, numerical data from the behavior, in static conditions, of geogrid reinforced soil structures with and without pre-tensioned reinforcements are presented. In the numerical study the FLAC program, based on the differences finites method, will be used. The construction of the structures will be modeled considering the sequential placement of soil layers and reinforcements, enhancing the deformation behavior of the structures. Thirdly, the advantages of the new technology against the traditional ones are quantified, based on the results of the numerical studies. Special relevance will be given to face horizontal deformations and reinforcements strains. Finally, the main conclusions about the new technology will be put forward and its main advantages towards traditional technologies will be listed. Application fields where the technology is competitiveness will be identified.

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