A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ENHANCEMENT OF THE SEISMIC PERFORMANCES OF HISTORIC MASONRY BUILDINGS THROUGH GLASS FIBER-REINFORCED MORTAR
The study investigates on the behavior of a strengthening technique for unreinforced masonry based on the application, on both the sides of the wall, of a 30 mm thick mortar coating with Glass Fiber-Reinforced Polymer meshes embedded. The effectiveness of this technique, called Glass Fiber Reinforced Mortar (GFRM), for the enhancement of both the in-plane and out-of-plane performances of masonry walls is proved through experimental tests and numerical simulations, which are here described and discussed in detail. In particular, a contextualization of the study is presented in the introduction section (2), describing briefly the behavior of historic unreinforced masonry buildings subjected to seismic actions and evidencing the main critical aspects to be considered so to ensure an adequate safety against horizontal loads. Furthermore, an overview on the state-of-art in the field of reinforcement techniques for masonry structures is reported, focusing, in particular to modern strategies employing composite materials. In section 3, the considered reinforcement method is described and the experimental results of different characterization tests are shown. Section 4 concerns the in-plane behavior of GFRM reinforced masonry. The characteristic and the results of a wide number of diagonal compression tests carried out in laboratory field are presented and discussed. Some considerations on the influence of different parameters on the technique effectiveness, based on experimental evidences, are also reported. The tests permit to investigate on the reinforced masonry equivalent diagonal tensile strength, shear modulus and deformation capacity. Analytical formulation, based on the experimental findings, are then proposed to predict the stiffness and the resistance of reinforced masonry specimens; a simple numerical Finite Element model is elaborated so to check the influence of some parameters. At last, a preliminary study aimed to the evaluation, at the whole building scale, of the seismic performance improvement due to ...
ENHANCEMENT OF THE SEISMIC PERFORMANCES OF HISTORIC MASONRY BUILDINGS THROUGH GLASS FIBER-REINFORCED MORTAR
The study investigates on the behavior of a strengthening technique for unreinforced masonry based on the application, on both the sides of the wall, of a 30 mm thick mortar coating with Glass Fiber-Reinforced Polymer meshes embedded. The effectiveness of this technique, called Glass Fiber Reinforced Mortar (GFRM), for the enhancement of both the in-plane and out-of-plane performances of masonry walls is proved through experimental tests and numerical simulations, which are here described and discussed in detail. In particular, a contextualization of the study is presented in the introduction section (2), describing briefly the behavior of historic unreinforced masonry buildings subjected to seismic actions and evidencing the main critical aspects to be considered so to ensure an adequate safety against horizontal loads. Furthermore, an overview on the state-of-art in the field of reinforcement techniques for masonry structures is reported, focusing, in particular to modern strategies employing composite materials. In section 3, the considered reinforcement method is described and the experimental results of different characterization tests are shown. Section 4 concerns the in-plane behavior of GFRM reinforced masonry. The characteristic and the results of a wide number of diagonal compression tests carried out in laboratory field are presented and discussed. Some considerations on the influence of different parameters on the technique effectiveness, based on experimental evidences, are also reported. The tests permit to investigate on the reinforced masonry equivalent diagonal tensile strength, shear modulus and deformation capacity. Analytical formulation, based on the experimental findings, are then proposed to predict the stiffness and the resistance of reinforced masonry specimens; a simple numerical Finite Element model is elaborated so to check the influence of some parameters. At last, a preliminary study aimed to the evaluation, at the whole building scale, of the seismic performance improvement due to ...
ENHANCEMENT OF THE SEISMIC PERFORMANCES OF HISTORIC MASONRY BUILDINGS THROUGH GLASS FIBER-REINFORCED MORTAR
BOEM, INGRID (author) / Boem, Ingrid / GATTESCO, Natalino
2017-05-25
Theses
Electronic Resource
English
DDC:
690
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