<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Geotechnical and structural engineers are faced with a difficult task when their designs interact with each other. For complex projects, this is more the norm than the exception. In order to help bridge that gap, a method for modeling the behavior of a foundation using a simple elasto-plastic subgrade reaction was developed. The method uses an optimization technique to position 4-6 springs along a pile foundation to produce similar load deflection characteristics that were modeled by more sophisticated geotechnical finite element software. The methodology uses an Excel spreadsheet for accepting user input and delivering an optimized subgrade spring stiffness, yield, and position along the pile. In this way, the behavior developed from the geotechnical software can be transferred to the structural analysis software. The optimization is achieved through the solver add-in within Excel. Additionally, a beam on a nonlinear elastic foundation model is used to compute deflections of the optimized subgrade reaction configuration.</p></abstract>

Geotechnical and structural engineers are faced with a difficult task when their designs interact with each other. For complex projects, this is more the norm than the exception. In order to help bridge that gap, a method for modeling the behavior of a foundation using a simple elasto-plastic subgrade reaction was developed. The method uses an optimization technique to position 4-6 springs along a pile foundation to produce similar load deflection characteristics that were modeled by more sophisticated geotechnical finite element software. The methodology uses an Excel spreadsheet for accepting user input and delivering an optimized subgrade spring stiffness, yield, and position along the pile. In this way, the behavior developed from the geotechnical software can be transferred to the structural analysis software. The optimization is achieved through the solver add-in within Excel. Additionally, a beam on a nonlinear elastic foundation model is used to compute deflections of the optimized subgrade reaction configuration.

An Optimized Elasto-Plastic Subgrade Reaction For Modeling The Response Of A Nonlinear Foundation For A Structural Analysis

Department of Structural and Geotechnical Engineering, Széchenyi István University, Egyetem ter 1, H9026, Győr Hungary

Slovak Journal of Civil Engineering

This chapter is distributed under the terms of the Creative Commons Attribution 4.0 Public License.

Geotechnical and structural engineers are faced with a difficult task when their designs interact with each other. For complex projects, this is more the norm...

An Optimized Elasto-Plastic Subgrade Reaction For Modeling The Response Of A Nonlinear Foundation For A Structural Analysis

Publié en ligne: 14 oct. 2015

Pages: 21 - 27

DOI: https://doi.org/10.1515/sjce-2015-0014

Mots clés
Soil-structure interaction, pile foundation, nonlinear modeling

© 2015 Faculty of Civil Engineering, Slovak University of Technology

This chapter is distributed under the terms of the Creative Commons Attribution 4.0 Public License.

An Optimized Elasto-Plastic Subgrade Reaction For Modeling The Response Of A Nonlinear Foundation For A Structural Analysis

Publié en ligne: 14 oct. 2015

Pages: 21 - 27

DOI: https://doi.org/10.1515/sjce-2015-0014

Mots clésSoil-structure interaction, pile foundation, nonlinear modeling

© 2015 Faculty of Civil Engineering, Slovak University of Technology

This chapter is distributed under the terms of the Creative Commons Attribution 4.0 Public License.

Mots clés
Soil-structure interaction, pile foundation, nonlinear modeling