Deflection (engineering)

About: Deflection (engineering) is a research topic. Over the lifetime, 30862 publications have been published within this topic receiving 298849 citations.

Lateral load analysis of single piles and drilled shafts

Abstract: The p‐y method of analysis models nonlinear behavior, and is an effective method of designing deep foundations subjected to, lateral loads Deflections and bending moments calculated using p‐y analyses have usually been found to be in good agreement with field measurements This paper describes a method of analysis, the characteristic load method (CLM) that is simpler than p‐y analyses, but that closely approximates p‐y analysis results The method uses dimensional analysis to characterize the nonlinear behavior of laterally loaded piles and drilled shafts by means of relationships among dimensionless variables The new method is simple enough for use by manual calculation, and it can also be adapted for computer use Lateral deflections and maximum bending moments calculated using CLM have been found to be in good agreement with values measured in field load tests

Deflection relationships between the homogeneous Kirchhoff plate theory and different functionally graded plate theories

Abstract: We derive field equations for a functionally graded plate whose deformations are governed by either the first-order shear deformation theory or the third-order shear deformation theory. These equations are further simplified for a simply supported polygonal plate. An exact relationship is established between the deflection of the functionally graded plate and that of an equivalent homogeneous Kirchhoff plate. This relationship is used to esplicitly express the displacements of a plate particle according to the first-order shear deformation theory in terms of the deflection of a homogeneous Kirchhoff plate. These relationships can readily be used to obtain similar correspondences between the deflections of a transversely laminated plate and a homogeneous Kirchhoff plate.

Lateral resistance and deflection of rigid walls and piles in layered soils

Abstract: The ultimate lateral resistance and the lateral deflection at working loads of rigid vertical walls and piles with a free head subjected to horizontal load and embedded in two-layered soils of sand...

Analysis of Laterally Loaded Piles in Weak Rock

Abstract: The p-y method for the analysis of piles under lateral loading is extended here to the analysis of single piles in rock. Rational equations are presented for developing a solution, but the method is termed “interim” principally because of the meager amount of experimental data available to validate the equations. Nonlinearity, both in the p-y curves and in the bending stiffness of the pile, must be considered in solving for the loading that will cause a failure in bending, deflection, or buckling under combined loading. Two case studies are presented whereby the analytical method is shown to agree well with results from experiments. However, loading tests of full-sized piles are recommended at any site where a sizable number of piles are needed, to further improve the analytical method presented herein.