Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings

For the design of a deep foundation, piles are presumed to transfer the axial and lateral loads into the ground. However, the effects of the combined loads are generally ignored in engineering practice since there are uncertainties to the precise definition of soil-pile interactions. Hence, for tech...

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Published in:Journal of the Mechanical Behavior of Materials
Main Author: Al-Jeznawi D.; Mohamed Jais I.B.; Albusoda B.S.; Khalid N.
Format: Article
Language:English
Published: De Gruyter Open Ltd 2022
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85135938943&doi=10.1515%2fjmbm-2022-0055&partnerID=40&md5=409157edc7c2c1d6e0cc2122ea8cfba6
id 2-s2.0-85135938943
spelling 2-s2.0-85135938943
Al-Jeznawi D.; Mohamed Jais I.B.; Albusoda B.S.; Khalid N.
Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings
2022
Journal of the Mechanical Behavior of Materials
31
1
10.1515/jmbm-2022-0055
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85135938943&doi=10.1515%2fjmbm-2022-0055&partnerID=40&md5=409157edc7c2c1d6e0cc2122ea8cfba6
For the design of a deep foundation, piles are presumed to transfer the axial and lateral loads into the ground. However, the effects of the combined loads are generally ignored in engineering practice since there are uncertainties to the precise definition of soil-pile interactions. Hence, for technical discussions of the soil-pile interactions due to dynamic loads, a three-dimensional finite element model was developed to evaluate the soil pile performance based on the 1 g shaking table test. The static loads consisted of 50% of the allowable vertical pile capacity and 50% of the allowable lateral pile capacity. The dynamic loads were taken from the recorded data of the Kobe earthquake. The current numerical model takes into account the material non-linearity and the non-linearity of pile-to-surrounded soil contact surfaces. A lateral ground acceleration was adapted to simulate the seismic effects. This research emphasizes modeling the 1 g model by adapting MIDAS GTS NX software. This will, in turn, present the main findings from a single pile model under a combined static and dynamic load. Consequently, the main results were first validated and then used for further deep investigations. The numerical results predicted a slightly higher displacement in the horizontal and vertical directions than the 1 g shaking table. The shear stress-shear strain relationship was predicted. Positive frictional resistance for the closed-ended pile was captured during the first 5 s when low values of acceleration were applied and, consequently, the pile resistance decreased and became negative. Internal and external frictional resistance was captured for the open-ended pipe pile. Overall, frictional resistance values were decreased with time until they reached the last time step with a minimum value. As a result, the evaluation of the current study can be used as a guide for analysis and preliminary design in engineering practice. © 2022 Duaa Al-Jeznawi et al., published by De Gruyter.
De Gruyter Open Ltd
3348938
English
Article
All Open Access; Gold Open Access
author Al-Jeznawi D.; Mohamed Jais I.B.; Albusoda B.S.; Khalid N.
spellingShingle Al-Jeznawi D.; Mohamed Jais I.B.; Albusoda B.S.; Khalid N.
Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings
author_facet Al-Jeznawi D.; Mohamed Jais I.B.; Albusoda B.S.; Khalid N.
author_sort Al-Jeznawi D.; Mohamed Jais I.B.; Albusoda B.S.; Khalid N.
title Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings
title_short Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings
title_full Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings
title_fullStr Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings
title_full_unstemmed Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings
title_sort Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings
publishDate 2022
container_title Journal of the Mechanical Behavior of Materials
container_volume 31
container_issue 1
doi_str_mv 10.1515/jmbm-2022-0055
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85135938943&doi=10.1515%2fjmbm-2022-0055&partnerID=40&md5=409157edc7c2c1d6e0cc2122ea8cfba6
description For the design of a deep foundation, piles are presumed to transfer the axial and lateral loads into the ground. However, the effects of the combined loads are generally ignored in engineering practice since there are uncertainties to the precise definition of soil-pile interactions. Hence, for technical discussions of the soil-pile interactions due to dynamic loads, a three-dimensional finite element model was developed to evaluate the soil pile performance based on the 1 g shaking table test. The static loads consisted of 50% of the allowable vertical pile capacity and 50% of the allowable lateral pile capacity. The dynamic loads were taken from the recorded data of the Kobe earthquake. The current numerical model takes into account the material non-linearity and the non-linearity of pile-to-surrounded soil contact surfaces. A lateral ground acceleration was adapted to simulate the seismic effects. This research emphasizes modeling the 1 g model by adapting MIDAS GTS NX software. This will, in turn, present the main findings from a single pile model under a combined static and dynamic load. Consequently, the main results were first validated and then used for further deep investigations. The numerical results predicted a slightly higher displacement in the horizontal and vertical directions than the 1 g shaking table. The shear stress-shear strain relationship was predicted. Positive frictional resistance for the closed-ended pile was captured during the first 5 s when low values of acceleration were applied and, consequently, the pile resistance decreased and became negative. Internal and external frictional resistance was captured for the open-ended pipe pile. Overall, frictional resistance values were decreased with time until they reached the last time step with a minimum value. As a result, the evaluation of the current study can be used as a guide for analysis and preliminary design in engineering practice. © 2022 Duaa Al-Jeznawi et al., published by De Gruyter.
publisher De Gruyter Open Ltd
issn 3348938
language English
format Article
accesstype All Open Access; Gold Open Access
record_format scopus
collection Scopus
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