Post-Fire Study of Strength and Stiffness of a Wooden Roof Structure

Abstract

The characteristics of the behavior of building materials against the fire could realize a preponderant role in the result of an eventual burning situation, difficulting or contributing to reach a critical stage. The present study evaluated the mechanical properties in compression parallel to grain of five pieces of wood from the roof structure of a residence undergo the fire in the rural area of Itapeva/SP. The roof structure was built 25 years ago using wooden beams of the species Guarucaia (Peltophorum vogelianum), where the specimens were obtained. The objective of this work was to realize a case study about strength and stiffness in parallel compression to wood grain in a roof structure of a house located in Itapeva/SP, according to its level of thermal degradation, upon the occurrence of a real fire. In general, despite the many variables involved, the results based on woods of a real fire shown are consistent with the fire simulations provided by the literature.

Evaluation of the Number of Load Cycles to Determine Some Wood Stiffness Properties

“…The study of wood and its mechanical characterisation, as well as its engineered products [1][2][3], is of fundamental importance in order to achieve better use of this material together with those whose properties are widely known, regardless of the industrial segments involved [4][5][6][7][8].…”

Glued laminated Timber Produced with Tropical Brazilian Wood Species

“…It can also be used as reinforcement of structures, with due study beforehand to avoid that the transmission of loads can concentrate in the joints, thus compromising the element as a whole. Many researches also indicate the best performance of GLT against solid wood, depending on the adhesive and connectors used [6][7].…”