Search results for " masonry"

RELAZIONE TRA PRESTAZIONI MECCANICHE ED ENERGETICHE NELL’ANALISI QUALITATIVA DELLE MURATURE STORICHE - RELATIONSHIP BETWEEN MECHANICAL AND ENERGY PER…

2018

L’integrazione fra le esigenze di sicurezza strutturale ed efficienza energetica costituisce l’obiettivo di molteplici ricerche e innovazioni sull’involucro edilizio. nel campo dell’architettura storica, questo connubio appare particolarmente interessante per le murature, delle quali non di rado è complesso caratterizzare in modo affidabile sia le prestazioni meccaniche sia quelle termiche e igrometriche. nell’ambito strutturale come in quello energetico, una descrizione adeguata di tali caratteristiche impone una conoscenza approfondita di materiali e tecniche costruttive locali. in entrambi i campi, peraltro, le esigenze della conservazione incidono sulle possibilità di accurate indagini …

Approccio integrato per la caratterizzazione delle murature storiche siciliane. Il caso di Gangi

2022

This study is part of a research aimed at developing a database of mechanical and hygrothermal information for Sicilian historic walls. This database is intended to support the analysis of the envelope performances of the historic building and to integrate data collected through in-situ measurements. The method is based on the analysis of local contexts: stone walls are divided in typologies according to the detailed non-destructive examination of the historic building stock, and laboratory and in-situ tests are carried out to characterize the mechanical and thermophysical properties of walls and masonry materials. This study focuses on the local context of Gangi, where a large amount of hi…

Shake-table testing of a stone masonry building aggregate: overview of blind prediction study

2023

Bulletin of earthquake engineering (2023). doi:10.1007/s10518-022-01582-x special issue: "Adjacent Interacting Masonry Structures"

Experimental investigation on BFRCM confinement of masonry cylinders and comparison with BFRP system

2021

Abstract Fabric reinforced cementitious mortar (FRCM) materials have started to be employed during the last years with the aim of overcoming the drawbacks related to the use of fibre reinforced polymer (FRP) composites, proving to be potentially suitable for strengthening masonry structures. Moreover, the will to develop materials able to guarantee a certain degree of sustainability without renouncing to adequate mechanical properties has drawn the attention to the use of basalt fibres, which appear to be a valid alternative to carbon or glass fibres. This work presents an experimental investigation on a basalt FRCM (BFRCM) system to confine circular masonry columns, aimed at evaluating the…

Seismic Behavior of Lisbon Mixed Masonry-RC Buildings With Historical Value: A Contribution for the Practical Assessment

2018

The fact that linear analysis is still the most used procedure in the design engineering offices, studies which addresses issues associated to the estimation of the structural behavior factor values are relevant. In this study, the behavior factor of a particular type of mixed masonry-reinforced concrete buildings in Lisbon is estimated. The typology chosen in this study represents 30% of building stock in Lisbon; these buildings were built between 1930 and 1960 and thus were designed without considering the seismic-design requirements proposed in current codes. The evaluation of the behavior factors was based on the use of nonlinear static analyses, performed in the form of the sensitivity…

Residual out-of-plane capacity of infills damaged by in-plane cyclic loads

2020

Abstract During earthquakes, infills are subjected to In-Plane (IP) and Out-Of-Plane (OOP) actions. In the case of strong earthquakes, infills may progressively change their mechanical behavior resulting in a reduction of IP and OOP stiffness and strength. Recent earthquakes have proved that the OOP collapse of infills is a diffused mechanism also for buildings designed to resist seismic events in agreement to the most modern codes. This is potentially a very dangerous event with risk for human health. The strong interaction between IP and OOP behavior of infills traduces in a progressive reduction of the OOP strength. The IP damaging loads may cause a loss of the OOP capacity not predicted…

Constructive characters of the Western Sicilian masonry in the XVIII and XIX centuries

2016

La tradizione costruttiva di apparecchi murari nella Sicilia occidentale - soprattutto a causa dei frequenti terremoti che si verificarono a Palermo tra i secoli XVIII-XIX (il più distruttivo avvenuto nel 1726, seguito da quelli del 1751, e 1823) - impose la realizzazione di nuovi tipi di muratura che, nel rispetto dei precetti della regola dell'arte, suggeriscono metodi più severi di quella che si può definire la "buona" costruzione muraria, sia nella scelta dei materiali che nell'adozione di nuove tecniche costruttive. La cultura tecnica di quel tempo era in grado di definire metodi costruttivi, introducendo appropriati miglioramenti e sperimentazioni, che promossero nuove conoscenze, tec…

Effect of vertical loads on lateral response of infilled frames

2004

FE-Meshless multiscale non linear analysis of masonry structures

2014

Mixed Stone-timber Masonry in Traditional Construction: Structural, Architectural and Anti-seismic Features across Europe

2018

This paper investigates the stone masonry with timber reinforcement through the European traditional and historical architecture. It is a remarkable practice consisting of combining different materials to build up a masonry. This technology shows a wide variety of typological, formal, and technological types of buildings across Europe as it is strongly influenced by the nature and availability of local materials, the cultural aspects of the various communities, and the soils geological nature. As a consequence, the same constructive typology is based on different premises and leads to many interesting results. In this paper the various uses of such a mixed stone-timber masonry are shown in …