Results 171 to 180 of about 600 (218)

DBEM Analysis of Beams on Modified Elastoplastic Winkler Foundation

1991
The problem of a beam on an elastoplastic Winkler medium is handled using a general Direct Boundary Element Method approach. The case of concentrated internal loading is considered, and the governing equations are obtained both following the classic beam subdivision approach and considering the beam loaded by a family of Dirac delta distributions and ...
P. De Simone, A. Ghersi, Mauro, Raffaele
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The improved foundation modulus for the use of Winkler foundation

2010 International Conference on Mechanic Automation and Control Engineering, 2010
An improved calculating method for the foundation modulus of Winkler foundation is presented in this paper. The calculating results of foundation modulus respectively from Biot's and Vesic's model are different greatly through the analysis to the two methods.
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Performance of Rocking Shallow Foundations and the Evolution of Beam-on-Nonlinear-Winkler Foundation Modeling

Transportation Research Record: Journal of the Transportation Research Board, 2022
The nonlinear behavior of shallow bridge and building foundations under large-amplitude seismic loading is an important aspect of performance-based earthquake engineering. Soil yielding beneath foundations can be an effective energy dissipation mechanism; however, this yielding may lead to excessive permanent deformations.
Chad William Harden, Andres Lozano
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Viscoelastic Winkler Foundation with Shear Interactions

Journal of the Engineering Mechanics Division, 1961
Concept of Pasternak-foundation, consisting of Winkler-foundation with shear interactions, is extended to case of viscoelastic behavior; formulation for vertical surface displacements due to creep and solutions for several loading cases are worked out; procedure to determine viscosity parameter and visco-compressibility parameter of vertical foundation
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THE PASTERNAK FOUNDATION An Attractive Alternative for the Winkler Foundation

Proceedings of the International Conference on Concrete Pavements
In this paper the Pasternak Foundation model is described. In this two parameter model the reaction of the foundation is determined by a vertical spring constant k (the modulus of subgrade reaction in the Winkler Foundation) in combination with a parameter k0 which can be seen as a horizontal linkage of the vertical springs (comparable to the function ...
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Fuzzy Behavior of Beams on Winkler Foundation

Journal of Engineering Mechanics, 1991
This paper addresses and solves the classical beam‐on Winkler‐foundation problem with fuzzy definitions for the Winkler‐spring stiffness, the flexural rigidity of the beam, and the concentrated load. The paper demonstrates through an example the extension of the classical solutions to include fuzzy quantities.
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Statistical analysis of a circular plate on a random winkler foundation

Computers & Structures, 1993
Statistical analysis of the problem of a circular plate on a random Winkler support is presented using the small fluctuation approximation technique. In particular, we consider the specific case of an infinite circular plate loaded by a uniform circumferential load.
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Monte Carlo Simulation of Beams on Winkler Foundation

1991
Modulus of subgrade reaction and displacement of a beam foundation are considered respectively as input and output random functions, connected by a non-linear fourth order operator. Relevant statistics of the output random functions are obtained through a Monte Carlo simulation, based on a Direct Boundary Element formulation of the problem, non-linear ...
P. de Simone, A. Ghersi, R. Mauro
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Beam‐Column Element on Weak Winkler Foundation

Journal of Engineering Mechanics, 1989
In this study an efficient beam-column on elastic foundation was derived using the exact displacement function obtained from the solution of the governing differential equation. The stiffness matrix and nodal load vector of the element are derived explicitly, and the detailed equations for the determination of the deflected shape, shearing force, and ...
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Interpolation-Element for Beam on Winkler Elastic Foundation

Applied Mechanics and Materials, 2013
On the basis of the deformation characteristics of Euler and Timoshenko beams on Winkler elastic foundation, the displacement shape functions were created. Lagrange interpolation function was used for the deformation in the axial direction, and Hermite interpolation function was applied in the bending direction.
Xiao Li, Shi Ping Li, Xu Dong Shi, Min Ding   +3 more
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