Behavior of CFA and H-section steel piles in later... - BV FAPESP
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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Behavior of CFA and H-section steel piles in lateral loading: experimental and numerical analysis

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Author(s):
Alex Micael Dantas de Sousa [1] ; Yuri Daniel Jatobá Costa [2] ; Arthur Gomes Dantas de Araujo [3] ; Carina Maia Lins Costa [4]
Total Authors: 4
Affiliation:
[1] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Engenharia de Estruturas - Brasil
[2] Universidade Federal do Rio Grande do Norte. Departamento de Engenharia Civil - Brasil
[3] Universidade Federal Rural do Semi-Árido. Departamento de Engenharia Civil - Brasil
[4] Universidade Federal do Rio Grande do Norte. Departamento de Engenharia Civil - Brasil
Total Affiliations: 4
Document type: Journal article
Source: Rev. IBRACON Estrut. Mater.; v. 14, n. 3 2021-03-19.
Abstract

abstract: The behavior of continuous flight auger (CFA) piles and steel H-section piles to lateral loading is investigated using numerical analyses supported by field tests. A three-dimensional finite element numerical model to lateral load is presented. The numerical model was validated with the results of twelve lateral load tests performed on CFA and steel H-section piles installed in two deposits of sandy soils. The three-dimensional approach proposed in this study is in good agreement with the response observed with the field tests, and thus represents a reliable soil-pile interaction for laterally loaded piles in sandy soil. Parametric analyses were used to assess the influence of relevant variables to lateral soil-pile interaction. Major findings of this paper indicate that the ultimate lateral load of short rigid piles is considerably more influenced by changes in soil-pile relative stiffness than that of long flexible units. Pile diameter and soil-pile interface friction are found to exert a marked effect on the lateral load of CFA piles, while soil dilatancy is found to play a minor influence on the response of CFA piles. (AU)

FAPESP's process: 18/21573-2 - Calibration of shear strength calculation models to bridge slabs with emphasis on the national designs practice
Grantee:Alex Micael Dantas de Sousa
Support Opportunities: Scholarships in Brazil - Doctorate