Data analysis of collapse mechanisms of a 3D printed groin vault in shaking table testing

Ragnucci, Beatrice (2021) Data analysis of collapse mechanisms of a 3D printed groin vault in shaking table testing. [Laurea magistrale], Università di Bologna, Corso di Studio in Civil engineering [LM-DM270]
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Abstract

The aim of this novel experimental study is to investigate the behaviour of a 2m x 2m model of a masonry groin vault, which is built by the assembly of blocks made of a 3D-printed plastic skin filled with mortar. The choice of the groin vault is due to the large presence of this vulnerable roofing system in the historical heritage. Experimental tests on the shaking table are carried out to explore the vault response on two support boundary conditions, involving four lateral confinement modes. The data processing of markers displacement has allowed to examine the collapse mechanisms of the vault, based on the arches deformed shapes. There then follows a numerical evaluation, to provide the orders of magnitude of the displacements associated to the previous mechanisms. Given that these displacements are related to the arches shortening and elongation, the last objective is the definition of a critical elongation between two diagonal bricks and consequently of a diagonal portion. This study aims to continue the previous work and to take another step forward in the research of ground motion effects on masonry structures.

Abstract
Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Ragnucci, Beatrice
Relatore della tesi
Correlatore della tesi
Scuola
Corso di studio
Indirizzo
Structural Engineering
Ordinamento Cds
DM270
Parole chiave
Masonry groin vault,Shaking table testing,Data processing,Collapse mechanisms,Collapse displacements,Critical elongations
Data di discussione della Tesi
11 Marzo 2021
URI

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