Shaking table testing of groin vaults made by 3D printers

Stefano Silvestri; Simonetta Baraccani; Dora Foti; Salvador Ivorra; Dimitris Theodossopoulos; Vitantonio Vacca; Jacqueline Ochoa Roman; Luca Cavallini; Elnaz Mokhtari; Rory E White; Matthew Dietz; George Mylonakis

doi:10.1016/j.soildyn.2021.106880

Shaking table testing of groin vaults made by 3D printers

Stefano Silvestri, Simonetta Baraccani^*, Dora Foti, Salvador Ivorra, Dimitris Theodossopoulos, Vitantonio Vacca, Jacqueline Ochoa Roman, Luca Cavallini, Elnaz Mokhtari, Rory E White, Matthew Dietz, George Mylonakis

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Abstract

A novel experimental study of the seismic response of a 2 m x 2 m in plan - 0.7 m in height groin vault model, involving 266 tests conducted on the shaking table of EQUALS laboratory, University of Bristol, UK, is reported. The experimental rig consists of blocks formed by a 3D-printed plastic skin to provide stiffness and strength, filled with mortar. Dry joints between the voussoirs are formed for ease of testing and vault reconstruction. No investigations of this kind and size have been attempted in the past. Two support boundary conditions involving four lateral confinement modes, leading to various vault configurations, were tested. White-noise, sinusoidal and earthquake motions were imposed in one horizontal direction, with progressively increasing amplitude and different frequencies, up to collapse. The model exhibited a strongly non-linear behaviour, with decreasing fundamental frequency and increasing damping with increasing table acceleration. Failure mechanisms and collapse accelerations were found to mainly depend on base restraint conditions.

Original language	English
Article number	106880
Pages (from-to)	106880
Number of pages	18
Journal	Soil Dynamics and Earthquake Engineering
Volume	150
Early online date	4 Aug 2021
DOIs	https://doi.org/10.1016/j.soildyn.2021.106880
Publication status	Published - 1 Nov 2021

Bibliographical note

Funding Information:
The SEBESMOVA3D project (SEeismic BEhaviour of Scaled MOdels of groin VAults made by 3D printers, https://sera-ta.eucentre.it/index.php/sera-ta-project-22/) was funded by European Union's Horizon 2020 research and innovation programme SERA, under grant agreement No 730900. The authors are grateful for this support. Thanks are also due to the laboratory personnel at EQUALS laboratory, University of Bristol, UK.

Funding Information:
The SEBESMOVA3D project (SEeismic BEhaviour of Scaled MOdels of groin VAults made by 3D printers, https://sera-ta.eucentre.it/index.php/sera-ta-project-22/ ) was funded by European Union's Horizon 2020 research and innovation programme SERA , under grant agreement No 730900. The authors are grateful for this support. Thanks are also due to the laboratory personnel at EQUALS laboratory, University of Bristol, UK.

Publisher Copyright:
© 2021 Elsevier Ltd

Keywords

Groin vault
3D printer
Shaking table
Frequency
Damping
Collapse
Moveable springings

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title = "Shaking table testing of groin vaults made by 3D printers",

abstract = "A novel experimental study of the seismic response of a 2 m x 2 m in plan - 0.7 m in height groin vault model, involving 266 tests conducted on the shaking table of EQUALS laboratory, University of Bristol, UK, is reported. The experimental rig consists of blocks formed by a 3D-printed plastic skin to provide stiffness and strength, filled with mortar. Dry joints between the voussoirs are formed for ease of testing and vault reconstruction. No investigations of this kind and size have been attempted in the past. Two support boundary conditions involving four lateral confinement modes, leading to various vault configurations, were tested. White-noise, sinusoidal and earthquake motions were imposed in one horizontal direction, with progressively increasing amplitude and different frequencies, up to collapse. The model exhibited a strongly non-linear behaviour, with decreasing fundamental frequency and increasing damping with increasing table acceleration. Failure mechanisms and collapse accelerations were found to mainly depend on base restraint conditions.",

keywords = "Groin vault, 3D printer, Shaking table, Frequency, Damping, Collapse, Moveable springings",

author = "Stefano Silvestri and Simonetta Baraccani and Dora Foti and Salvador Ivorra and Dimitris Theodossopoulos and Vitantonio Vacca and {Ochoa Roman}, Jacqueline and Luca Cavallini and Elnaz Mokhtari and White, {Rory E} and Matthew Dietz and George Mylonakis",

note = "Funding Information: The SEBESMOVA3D project (SEeismic BEhaviour of Scaled MOdels of groin VAults made by 3D printers, https://sera-ta.eucentre.it/index.php/sera-ta-project-22/) was funded by European Union's Horizon 2020 research and innovation programme SERA, under grant agreement No 730900. The authors are grateful for this support. Thanks are also due to the laboratory personnel at EQUALS laboratory, University of Bristol, UK. Funding Information: The SEBESMOVA3D project (SEeismic BEhaviour of Scaled MOdels of groin VAults made by 3D printers, https://sera-ta.eucentre.it/index.php/sera-ta-project-22/ ) was funded by European Union's Horizon 2020 research and innovation programme SERA , under grant agreement No 730900. The authors are grateful for this support. Thanks are also due to the laboratory personnel at EQUALS laboratory, University of Bristol, UK. Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

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doi = "10.1016/j.soildyn.2021.106880",

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AU - Silvestri, Stefano

AU - Baraccani, Simonetta

AU - Foti, Dora

AU - Ivorra, Salvador

AU - Theodossopoulos, Dimitris

AU - Vacca, Vitantonio

AU - Ochoa Roman, Jacqueline

AU - Cavallini, Luca

AU - Mokhtari, Elnaz

AU - White, Rory E

AU - Dietz, Matthew

AU - Mylonakis, George

N1 - Funding Information: The SEBESMOVA3D project (SEeismic BEhaviour of Scaled MOdels of groin VAults made by 3D printers, https://sera-ta.eucentre.it/index.php/sera-ta-project-22/) was funded by European Union's Horizon 2020 research and innovation programme SERA, under grant agreement No 730900. The authors are grateful for this support. Thanks are also due to the laboratory personnel at EQUALS laboratory, University of Bristol, UK. Funding Information: The SEBESMOVA3D project (SEeismic BEhaviour of Scaled MOdels of groin VAults made by 3D printers, https://sera-ta.eucentre.it/index.php/sera-ta-project-22/ ) was funded by European Union's Horizon 2020 research and innovation programme SERA , under grant agreement No 730900. The authors are grateful for this support. Thanks are also due to the laboratory personnel at EQUALS laboratory, University of Bristol, UK. Publisher Copyright: © 2021 Elsevier Ltd

PY - 2021/11/1

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N2 - A novel experimental study of the seismic response of a 2 m x 2 m in plan - 0.7 m in height groin vault model, involving 266 tests conducted on the shaking table of EQUALS laboratory, University of Bristol, UK, is reported. The experimental rig consists of blocks formed by a 3D-printed plastic skin to provide stiffness and strength, filled with mortar. Dry joints between the voussoirs are formed for ease of testing and vault reconstruction. No investigations of this kind and size have been attempted in the past. Two support boundary conditions involving four lateral confinement modes, leading to various vault configurations, were tested. White-noise, sinusoidal and earthquake motions were imposed in one horizontal direction, with progressively increasing amplitude and different frequencies, up to collapse. The model exhibited a strongly non-linear behaviour, with decreasing fundamental frequency and increasing damping with increasing table acceleration. Failure mechanisms and collapse accelerations were found to mainly depend on base restraint conditions.

AB - A novel experimental study of the seismic response of a 2 m x 2 m in plan - 0.7 m in height groin vault model, involving 266 tests conducted on the shaking table of EQUALS laboratory, University of Bristol, UK, is reported. The experimental rig consists of blocks formed by a 3D-printed plastic skin to provide stiffness and strength, filled with mortar. Dry joints between the voussoirs are formed for ease of testing and vault reconstruction. No investigations of this kind and size have been attempted in the past. Two support boundary conditions involving four lateral confinement modes, leading to various vault configurations, were tested. White-noise, sinusoidal and earthquake motions were imposed in one horizontal direction, with progressively increasing amplitude and different frequencies, up to collapse. The model exhibited a strongly non-linear behaviour, with decreasing fundamental frequency and increasing damping with increasing table acceleration. Failure mechanisms and collapse accelerations were found to mainly depend on base restraint conditions.

KW - Groin vault

KW - 3D printer

KW - Shaking table

KW - Frequency

KW - Damping

KW - Collapse

KW - Moveable springings

U2 - 10.1016/j.soildyn.2021.106880

DO - 10.1016/j.soildyn.2021.106880

M3 - Article (Academic Journal)

VL - 150

SP - 106880

JO - Soil Dynamics and Earthquake Engineering

JF - Soil Dynamics and Earthquake Engineering

SN - 0267-7261

M1 - 106880

ER -

Shaking table testing of groin vaults made by 3D printers

Abstract

Bibliographical note

Keywords

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