Análisis de las propiedades mecánicas, tracción paralela a la fibra y flexión perpendicular a la fibra de la madera de capulí, proveniente de la provincia de Tungurahua y su factibilidad como material estructural de acuerdo con la norma ecuatoriana de la construcción 2015 (NEC 2015)

Abstract

This research seeks to provide information on the use of capulí wood from the cantons of Ambato, Cevallos, Mocha, Pelileo, Santiago de Píllaro, Quero and Tisalelo, as a structural material in construction. This experimental work complies with the parameters established in the standards ASTM D143-94, ASTM D198, NTE INEN 896 and NEC-SE-MD 2015, from which samples of green or freshly cut wood were extracted and specimens of capulí wood with a natural drying process were elaborated. By means of physical tests, the moisture content in the dry and green state was determined, and by means of mechanical tests, the modulus of elasticity and admissible stress were determined. In addition, the results obtained in each canton were used to create load vs. deformation graphs; stress vs. unit deformation; comparative tables of the results obtained and zoning maps. Based on the analysis carried out on 84 capulí wood specimens, it was determined that capulí wood can be used as a structural material, since it presented representative values in the mechanical tests carried out, being the wood from the Ambato canton the one that showed a higher resistance to both parallel traction and static bending.