37º IAHS World Congress on Housing: - Universidad de Cantabria

XXXVII <strong>IAHS</strong><strong>World</strong> <strong>Congress</strong> on HousingOctober 26 – 29, 2010, Santander, SpainCODE: 135EVALUATION OF THE RESISTANT BEHAVIOUR OFCONCRETE BLOCK MASONRY BEARING WALLSSUBJECTED TO FLEXO-COMPRESSION TRANSVERSE TOTHEIR PLANE, WITH AND WITHOUT REINFORCEMENT,BY TESTING PRISM SPECIMENSTuesta N., Villegas L.Departamento de Ingeniería de EdificaciónUniversidad Europea Miguel de Cervantese-mail: ntuesta@uemc.esDepartamento de Ingeniería Estructural y MecánicaUniversidad de Cantabriae-mail: villegal@unican.esKey words: prism, masonry, masonry walls, concrete masonryAbstractThis research shows a theoretical-experimental study of resistant behaviour of concrete blockmasonry bearing walls, with and without reinforcement, subjected to flexo-compressiontransverse to their plane.In order to carry out this investigation 21 masonry walls were tested, each of them had aheight of 2.6m and (0.14 x 1.00) m 2 cross section, submitted to a scheme of equaleccentricities of load and of the same sense in the top and bottom part of the wall. Theanalyzed eccentricities were: e=0, e=t/6; e=t/3 and e=t/2. Likewise 6 "prisms" were tested,with and without grout, which are the test specimens that the American Society for Testingand Materials "ASTM" [3] proposes to evaluate the compressive strength masonry.The results of the resistant behaviour of the walls, obtained experimentally, have beencompared with those proposed of the design codes Europeans: Eurocode EC6 [7, 8], theBritish Standards Institution "BSI" [4, 5], as well as with the proposals of the design codesAmericans: National Masonry Association "NCMA" [9] and the American Concrete Institute"ACI" [1]. In the same way, the experimental results have been compared with theproposition made for this type of walls by the researchers Yokel, F.Y.; Mathey, R.G. andDikkers, R.S. [14, 15]; who may possibly be those who most tested these types of walls tointernational level.37º <strong>IAHS</strong> <strong>World</strong> <strong>Congress</strong> On Housing Science 82