In the area of the reinforcing techniques most widely used at present, the use of new materials may contribute significantly to the solution of different structural problems. The aim of this paper is to analyze the results of a new series of tests, designed to find the experimental values for the shear strength and stiffness of masonry panels reinforced with high-strength steel cords embedded in a cementitious matrix (SRG: Steel Reinforced Grout). More than 30 solid brick panels were constructed in the laboratory and then were strengthened with various types of steel cords according to differing schemes. Diagonal compression tests were carried out on the panels in order to measure shear strength, stiffness and ductility. The purpose of the tests was to analyze the effectiveness of the intervention, above all as a technique of seismic upgrading against in – plane mechanisms of collapse. The results of the experiments carried out show a significant increase in strength and shear stiffness, with interesting implications for the practical utilization of the technique studied
In-plane shear reinforcement of masonry panels with high strength stell cords
BORRI, Antonio;CASTORI, GIULIO;CORRADI, Marco
2008
Abstract
In the area of the reinforcing techniques most widely used at present, the use of new materials may contribute significantly to the solution of different structural problems. The aim of this paper is to analyze the results of a new series of tests, designed to find the experimental values for the shear strength and stiffness of masonry panels reinforced with high-strength steel cords embedded in a cementitious matrix (SRG: Steel Reinforced Grout). More than 30 solid brick panels were constructed in the laboratory and then were strengthened with various types of steel cords according to differing schemes. Diagonal compression tests were carried out on the panels in order to measure shear strength, stiffness and ductility. The purpose of the tests was to analyze the effectiveness of the intervention, above all as a technique of seismic upgrading against in – plane mechanisms of collapse. The results of the experiments carried out show a significant increase in strength and shear stiffness, with interesting implications for the practical utilization of the technique studiedI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
