TY - JOUR
T1 - Shaking table testing of groin vaults made by 3D printers
AU - Silvestri, Stefano
AU - Baraccani, Simonetta
AU - Foti, Dora
AU - Ivorra, Salvador
AU - Theodossopoulos, Dimitris
AU - Vacca, Vitantonio
AU - Roman, Jacqueline Ochoa
AU - Cavallini, Luca
AU - Mokhtari, Elnaz
AU - White, Rory
AU - Dietz, Matt
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
Y1 - 2021/11
N2 - A novel experimental study of the dynamic and seismic response of a 2 m × 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 strong non-linear behaviour, characterised by 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 dynamic and seismic response of a 2 m × 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 strong non-linear behaviour, characterised by 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 - 3D printer
KW - Collapse
KW - Damping
KW - Frequency
KW - Groin vault
KW - Moveable springings
KW - Shaking table
UR - http://www.scopus.com/inward/record.url?scp=85111889881&partnerID=8YFLogxK
U2 - 10.1016/j.soildyn.2021.106880
DO - 10.1016/j.soildyn.2021.106880
M3 - Article
AN - SCOPUS:85111889881
SN - 0267-7261
VL - 150
JO - Soil Dynamics and Earthquake Engineering
JF - Soil Dynamics and Earthquake Engineering
M1 - 106880
ER -
