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 |
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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 | |
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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Earthquake and Large Structures (EQUALS) Laboratory
Williams, D. (Manager), Crewe, A. (Manager) & Sextos, A. (Manager)
School of Civil, Aerospace and Design EngineeringFacility/equipment: Facility