A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CRM reinforcement of brick masonry walls: Experimental and numerical investigations ; CRM-Bewehrung von Ziegelwänden: Experimentelle und numerische Untersuchungen
The preservation of the building heritage is often accompanied by the necessity of ensuring an appropriate structural safety of existing buildings. Existing masonry structures are usually characterized by a high seismic vulnerability due to their low tensile strength; moreover, despite the significant compressive strength, often masonry panels are not able to guarantee the safety level required by the current Building Codes under gravitational loads, due to their slenderness and possible out-of-plane actions. In recent years, several systems have been developed for the reinforcement of masonry buildings based on the use of composite materials externally bonded to the structural elements. Among them, the CRM can be used for static and seismic reinforcement of masonry piers as an alternative to the traditional reinforced plaster. The CRM system consists of the application on the panel surfaces of a mortar layer about 3cm thick reinforced with a glass fibre grid and connected to the wall through transversal connectors. Despite its increasing use, to date limited experimental results on strengthened panels are available; in particular, few studies have been carried out focusing on the flexural behaviour of reinforced panels and on the effect of the reinforcement on the ultimate displacement, as well as few studies are available regarding the contribution provided by CRM layers on the buckling failure of panels induced by vertical loads. Due to the lack of experimental and theoretical studies, a standardized design procedure for the assessment of the response of retrofitted panels has not yet been defined. The present Thesis focuses on the study of CRM-reinforced panels loaded by vertical and horizontal actions, with the aim of analysing the parameters that most affect the effectiveness of the reinforcement and defining an analytical procedure for the evaluation of the load-bearing capacity of strengthened panels. An experimental campaign has been carried out at the Laboratory of Structures and Materials of the ...
CRM reinforcement of brick masonry walls: Experimental and numerical investigations ; CRM-Bewehrung von Ziegelwänden: Experimentelle und numerische Untersuchungen
The preservation of the building heritage is often accompanied by the necessity of ensuring an appropriate structural safety of existing buildings. Existing masonry structures are usually characterized by a high seismic vulnerability due to their low tensile strength; moreover, despite the significant compressive strength, often masonry panels are not able to guarantee the safety level required by the current Building Codes under gravitational loads, due to their slenderness and possible out-of-plane actions. In recent years, several systems have been developed for the reinforcement of masonry buildings based on the use of composite materials externally bonded to the structural elements. Among them, the CRM can be used for static and seismic reinforcement of masonry piers as an alternative to the traditional reinforced plaster. The CRM system consists of the application on the panel surfaces of a mortar layer about 3cm thick reinforced with a glass fibre grid and connected to the wall through transversal connectors. Despite its increasing use, to date limited experimental results on strengthened panels are available; in particular, few studies have been carried out focusing on the flexural behaviour of reinforced panels and on the effect of the reinforcement on the ultimate displacement, as well as few studies are available regarding the contribution provided by CRM layers on the buckling failure of panels induced by vertical loads. Due to the lack of experimental and theoretical studies, a standardized design procedure for the assessment of the response of retrofitted panels has not yet been defined. The present Thesis focuses on the study of CRM-reinforced panels loaded by vertical and horizontal actions, with the aim of analysing the parameters that most affect the effectiveness of the reinforcement and defining an analytical procedure for the evaluation of the load-bearing capacity of strengthened panels. An experimental campaign has been carried out at the Laboratory of Structures and Materials of the ...
CRM reinforcement of brick masonry walls: Experimental and numerical investigations ; CRM-Bewehrung von Ziegelwänden: Experimentelle und numerische Untersuchungen
Vienni, Carlo (author) / Thiele, Klaus / Salvatori, Luca / Orlando, Maurizio
2024-07-01
Theses
Electronic Resource
English
CRM reinforcement of brick masonry walls : experimental and numerical investigations
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