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Dynamic analysis of a laterally loaded rectangular pile in multilayered viscoelastic soil
Abstract Rectangular piles are usually used as the foundation for many infrastructures, but there are fewer theoretical solutions for the lateral vibration. This study presents a semi-analytical methodology for the dynamic analysis of laterally loaded rectangular pile in multi-layered viscoelastic soils. The pile-soil system is modeled as a continuum, the horizontal continuous displacement model is proposed as products of the separating variables function. The coupled governing equations for rectangular pile-soil system in the frame of Euler-Bernoulli beam and modified Vlasov model are derived with the aid of Hamilton's Variation principle and calculus of variations. The physical mechanisms of soil reaction and dynamic equilibrium equation are interpreted by employing thin-layer element of soil. The dynamic responses are solved analytically and numerically by an iterative procedure. The verification and accuracy of the research are obtained thorough comparison with the relevant examples from the literatures and finite element analysis. The effects of cross-section shapes and soil stratification on the complex dynamic response are investigated and discussed in detail.
Highlights A semi-analytical method for dynamic responses of laterally loaded rectangular pile is developed.. The physical mechanisms of dynamic equation for rectangular pile are captured by employing thin-layer element of soil. The dynamic soil reaction for rectangular pile is obtained as three parts analytically. The effect of rectangular shapes and soil stratification on the laterally dynamic responses of pile can be quantified.
Dynamic analysis of a laterally loaded rectangular pile in multilayered viscoelastic soil
Abstract Rectangular piles are usually used as the foundation for many infrastructures, but there are fewer theoretical solutions for the lateral vibration. This study presents a semi-analytical methodology for the dynamic analysis of laterally loaded rectangular pile in multi-layered viscoelastic soils. The pile-soil system is modeled as a continuum, the horizontal continuous displacement model is proposed as products of the separating variables function. The coupled governing equations for rectangular pile-soil system in the frame of Euler-Bernoulli beam and modified Vlasov model are derived with the aid of Hamilton's Variation principle and calculus of variations. The physical mechanisms of soil reaction and dynamic equilibrium equation are interpreted by employing thin-layer element of soil. The dynamic responses are solved analytically and numerically by an iterative procedure. The verification and accuracy of the research are obtained thorough comparison with the relevant examples from the literatures and finite element analysis. The effects of cross-section shapes and soil stratification on the complex dynamic response are investigated and discussed in detail.
Highlights A semi-analytical method for dynamic responses of laterally loaded rectangular pile is developed.. The physical mechanisms of dynamic equation for rectangular pile are captured by employing thin-layer element of soil. The dynamic soil reaction for rectangular pile is obtained as three parts analytically. The effect of rectangular shapes and soil stratification on the laterally dynamic responses of pile can be quantified.
Dynamic analysis of a laterally loaded rectangular pile in multilayered viscoelastic soil
Cao, Geng (author) / Wang, Xiao (author) / He, Changdi (author)
2022-11-28
Article (Journal)
Electronic Resource
English
Analysis of laterally loaded pile groups in multilayered elastic soil
Elsevier | 2014
|Analysis of laterally loaded pile groups in multilayered elastic soil
Online Contents | 2014
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