A Macroelement Approach for the Stability Assessment of Trees

G. Dattola, Matteo Ciantia (Lead / Corresponding author), A. Galli, L. Blyth, Xingyu Zhang, Jonathan Knappett, Riccardo Castellanza, C. Sala, Anthony Leung

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

Abstract

Interaction diagrams in the generalized 3D loading space of vertical (V), horizontal (H) and moment (M) actions constitute the basis of the design of foundation structures in case of complex loads combinations. The mechanical response of such systems is frequently interpreted in terms of the ‘macroelement’ theory, where a generalized incremental constitutive relationship is introduced, linking the displacements and rotations of the foundation (playing the role of generalized strains) to the histories of applied loading components (i.e. the generalized stresses). In this paper an attempt to extend a classical macroelement framework, to the case of root-soil interaction presented. The model is calibrated on small scale experimental data on 3D printed plastic root systems, subject to combined V-H-M loads, and a parametric analysis on the main governing parameters is discussed. The comparison between numerical and experimental data suggests that the macroelement approach could be an efficient and simple analytical tool for describing the whole moment-rotation curve, overcoming the main simplifying hypotheses currently employed in arboriculture practice.
Original languageEnglish
Title of host publicationGeotechnical Research for Land Protection and Development
Subtitle of host publicationProceedings of CNRIG 2019
EditorsFrancesco Calvetti, Federica Cotecchia, Andrea Galli, Cristina Jommi
Place of PublicationSwitzerland
PublisherSpringer
Pages417-426
Number of pages10
Volume40
ISBN (Electronic)9783030213596
ISBN (Print)9783030213589
DOIs
Publication statusPublished - 2019
EventCNRIG 2019: Geotechnical Research for Land Protection and Development - Lecco, Italy
Duration: 3 Jul 20195 Jul 2019

Publication series

NameLecture Notes in Civil Engineering
PublisherSpringer
Volume40
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

ConferenceCNRIG 2019
CountryItaly
CityLecco
Period3/07/195/07/19

Fingerprint

Plastics
Soils

Keywords

  • Bearing capacity
  • Macroelement
  • Roots
  • Soil-structure interaction
  • Trees

Cite this

Dattola, G., Ciantia, M., Galli, A., Blyth, L., Zhang, X., Knappett, J., ... Leung, A. (2019). A Macroelement Approach for the Stability Assessment of Trees. In F. Calvetti, F. Cotecchia, A. Galli, & C. Jommi (Eds.), Geotechnical Research for Land Protection and Development: Proceedings of CNRIG 2019 (Vol. 40, pp. 417-426). (Lecture Notes in Civil Engineering; Vol. 40). Switzerland: Springer . https://doi.org/10.1007/978-3-030-21359-6_44
Dattola, G. ; Ciantia, Matteo ; Galli, A. ; Blyth, L. ; Zhang, Xingyu ; Knappett, Jonathan ; Castellanza, Riccardo ; Sala, C. ; Leung, Anthony. / A Macroelement Approach for the Stability Assessment of Trees. Geotechnical Research for Land Protection and Development: Proceedings of CNRIG 2019. editor / Francesco Calvetti ; Federica Cotecchia ; Andrea Galli ; Cristina Jommi. Vol. 40 Switzerland : Springer , 2019. pp. 417-426 (Lecture Notes in Civil Engineering).
@inbook{c990efa4f17d430bacb7f3e39833e5b3,
title = "A Macroelement Approach for the Stability Assessment of Trees",
abstract = "Interaction diagrams in the generalized 3D loading space of vertical (V), horizontal (H) and moment (M) actions constitute the basis of the design of foundation structures in case of complex loads combinations. The mechanical response of such systems is frequently interpreted in terms of the ‘macroelement’ theory, where a generalized incremental constitutive relationship is introduced, linking the displacements and rotations of the foundation (playing the role of generalized strains) to the histories of applied loading components (i.e. the generalized stresses). In this paper an attempt to extend a classical macroelement framework, to the case of root-soil interaction presented. The model is calibrated on small scale experimental data on 3D printed plastic root systems, subject to combined V-H-M loads, and a parametric analysis on the main governing parameters is discussed. The comparison between numerical and experimental data suggests that the macroelement approach could be an efficient and simple analytical tool for describing the whole moment-rotation curve, overcoming the main simplifying hypotheses currently employed in arboriculture practice.",
keywords = "Bearing capacity, Macroelement, Roots, Soil-structure interaction, Trees",
author = "G. Dattola and Matteo Ciantia and A. Galli and L. Blyth and Xingyu Zhang and Jonathan Knappett and Riccardo Castellanza and C. Sala and Anthony Leung",
note = "Presents selected papers from the 7th Italian National Congress of Geotechnical Researchers (CNRIG 2019), held in Lecco, Italy, on July 3-5, 2019",
year = "2019",
doi = "10.1007/978-3-030-21359-6_44",
language = "English",
isbn = "9783030213589",
volume = "40",
series = "Lecture Notes in Civil Engineering",
publisher = "Springer",
pages = "417--426",
editor = "Francesco Calvetti and Federica Cotecchia and Andrea Galli and Cristina Jommi",
booktitle = "Geotechnical Research for Land Protection and Development",

}

Dattola, G, Ciantia, M, Galli, A, Blyth, L, Zhang, X, Knappett, J, Castellanza, R, Sala, C & Leung, A 2019, A Macroelement Approach for the Stability Assessment of Trees. in F Calvetti, F Cotecchia, A Galli & C Jommi (eds), Geotechnical Research for Land Protection and Development: Proceedings of CNRIG 2019. vol. 40, Lecture Notes in Civil Engineering, vol. 40, Springer , Switzerland, pp. 417-426, CNRIG 2019, Lecco, Italy, 3/07/19. https://doi.org/10.1007/978-3-030-21359-6_44

A Macroelement Approach for the Stability Assessment of Trees. / Dattola, G.; Ciantia, Matteo (Lead / Corresponding author); Galli, A.; Blyth, L.; Zhang, Xingyu; Knappett, Jonathan; Castellanza, Riccardo ; Sala, C.; Leung, Anthony.

Geotechnical Research for Land Protection and Development: Proceedings of CNRIG 2019. ed. / Francesco Calvetti; Federica Cotecchia; Andrea Galli; Cristina Jommi. Vol. 40 Switzerland : Springer , 2019. p. 417-426 (Lecture Notes in Civil Engineering; Vol. 40).

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

TY - CHAP

T1 - A Macroelement Approach for the Stability Assessment of Trees

AU - Dattola, G.

AU - Ciantia, Matteo

AU - Galli, A.

AU - Blyth, L.

AU - Zhang, Xingyu

AU - Knappett, Jonathan

AU - Castellanza, Riccardo

AU - Sala, C.

AU - Leung, Anthony

N1 - Presents selected papers from the 7th Italian National Congress of Geotechnical Researchers (CNRIG 2019), held in Lecco, Italy, on July 3-5, 2019

PY - 2019

Y1 - 2019

N2 - Interaction diagrams in the generalized 3D loading space of vertical (V), horizontal (H) and moment (M) actions constitute the basis of the design of foundation structures in case of complex loads combinations. The mechanical response of such systems is frequently interpreted in terms of the ‘macroelement’ theory, where a generalized incremental constitutive relationship is introduced, linking the displacements and rotations of the foundation (playing the role of generalized strains) to the histories of applied loading components (i.e. the generalized stresses). In this paper an attempt to extend a classical macroelement framework, to the case of root-soil interaction presented. The model is calibrated on small scale experimental data on 3D printed plastic root systems, subject to combined V-H-M loads, and a parametric analysis on the main governing parameters is discussed. The comparison between numerical and experimental data suggests that the macroelement approach could be an efficient and simple analytical tool for describing the whole moment-rotation curve, overcoming the main simplifying hypotheses currently employed in arboriculture practice.

AB - Interaction diagrams in the generalized 3D loading space of vertical (V), horizontal (H) and moment (M) actions constitute the basis of the design of foundation structures in case of complex loads combinations. The mechanical response of such systems is frequently interpreted in terms of the ‘macroelement’ theory, where a generalized incremental constitutive relationship is introduced, linking the displacements and rotations of the foundation (playing the role of generalized strains) to the histories of applied loading components (i.e. the generalized stresses). In this paper an attempt to extend a classical macroelement framework, to the case of root-soil interaction presented. The model is calibrated on small scale experimental data on 3D printed plastic root systems, subject to combined V-H-M loads, and a parametric analysis on the main governing parameters is discussed. The comparison between numerical and experimental data suggests that the macroelement approach could be an efficient and simple analytical tool for describing the whole moment-rotation curve, overcoming the main simplifying hypotheses currently employed in arboriculture practice.

KW - Bearing capacity

KW - Macroelement

KW - Roots

KW - Soil-structure interaction

KW - Trees

UR - http://www.scopus.com/inward/record.url?scp=85068135950&partnerID=8YFLogxK

U2 - 10.1007/978-3-030-21359-6_44

DO - 10.1007/978-3-030-21359-6_44

M3 - Chapter (peer-reviewed)

SN - 9783030213589

VL - 40

T3 - Lecture Notes in Civil Engineering

SP - 417

EP - 426

BT - Geotechnical Research for Land Protection and Development

A2 - Calvetti, Francesco

A2 - Cotecchia, Federica

A2 - Galli, Andrea

A2 - Jommi, Cristina

PB - Springer

CY - Switzerland

ER -

Dattola G, Ciantia M, Galli A, Blyth L, Zhang X, Knappett J et al. A Macroelement Approach for the Stability Assessment of Trees. In Calvetti F, Cotecchia F, Galli A, Jommi C, editors, Geotechnical Research for Land Protection and Development: Proceedings of CNRIG 2019. Vol. 40. Switzerland: Springer . 2019. p. 417-426. (Lecture Notes in Civil Engineering). https://doi.org/10.1007/978-3-030-21359-6_44