Strength capacity of prismatic specimens for masonry constructions made of concrete voussoirs

Abstract

This research shows the results of an experimental campaign of masonry specimens tested until failure. The masonry is made of special voussoirs for the construction of arches and vaults. The voussoirs were made of plain concrete. The experimental campaign focused on obtaining the flexural and the compressive strength of this type of masonry specimens. Specimens were subjected to compressive loads with different eccentricities to obtain the axial load–bending moment interaction diagrams, which indicate the strength of these pieces against eccentric compression. The ultimate purpose of this research is to foresee the behavior of structural elements, such as arches and lowered vaults with a circular directrix, built using this type of voussoirs. These structural elements aim to reintroduce anti-funicular structural elements in bridges, culvert, tunnel, floor, and roof of buildings. Constructions that solve the basic needs of the population in any country. This innovative idea on a new block geometry, designed specifically for construction of arches, allows covering distances up to 6–7 m. The use of steel is not necessary; therefore, the risk of corrosion is eliminated. Finally, a study on the use of this new masonry type on the statics of arches is assessed.