For fiber accommodation in tests to obtain wood strength and stiffness properties, some standards codes provide two or more load cycles, such as the Brazilian Standard ABNT NBR 7190, which establishes a number of three cycles (two previous and the final load cycle). However, redu...
Open access
Research Article10.9734/CJAST/2018/43486
It is essential to have full knowledge of wood properties, such as strength and stiffness, for the preparation of reliable structural designs. The Brazilian Code ABNT NBR 7190 (1997) establishes that the modulus of elasticity in compression perpendicular to grain (Ec90) can be ob...
Open access
Research Article10.9734/CJAST/2018/42945
In order to use wood in a sustainable and rational way, it is necessary to estimate its characteristics, and in the case of civil construction, the physical and mechanical properties are the most interesting. The aim of this research was to estimate the modulus of elasticity of s...
Open access
Research Article10.9734/CJAST/2018/39531
Wood is a natural material with technological properties that vary between species (genetic factors) and for the same species (edaphoclimatic factors). For the use of wood in civil construction, physical and mechanical properties are of interest. The aim of this research was to d...
Open access
Research Article10.9734/CJAST/2017/38747
Julio César Pigozzo, Felipe Nascimento Arroyo, André Luis Christoforo, Diego Henrique de Almeida, Carlito Calil Junior & Francisco Antonio Rocco Lahr·Current Journal of Applied Science and Technology·2018
The study of pull out strength of bonded-in steel bars in Pinus oocarpa Shiede timbers (ρ12% = 550 kg/m3) is presented. The aim was to evaluate, with the design of experiment, statistical methods and experimental works, the moisture content and anchorage areas variations effects....
Open access
Research Article10.9734/CJAST/2018/42970
Julio César Pigozzo, Eduardo Chahud, Felipe Nascimento Arroyo, André Luis Christoforo, Diego Henrique de Almeida & Francisco Antonio Rocco Lahr·Current Journal of Applied Science and Technology·2018
The pull out of steel bars bonded-in in structural wood pieces present highly satisfactory performance concerning esthetics, strength and connection stiffness, nevertheless, great concerns arise relating to the bonding quality control, making some authors suggest that the bonding...
Open access
Research Article10.9734/CJAST/2018/42993
Julio César Pigozzo, Felipe Nascimento Arroyo, André Luis Christoforo, Diego Henrique de Almeida, Carlito Calil Junior & Francisco Antonio Rocco Lahr·Current Journal of Applied Science and Technology·2018
In Brazil, don’t have a standard code which rules the shear connector tests for mixed wood-concrete structures. Due to the excellent connector diversification, regarding shape, stiffness, limit strength and the placement in the structural member; and variables as: spaces between...
Open access
Research Article10.9734/CJAST/2018/43127
Julio César Pigozzo, Felipe Nascimento Arroyo, André Luis Christoforo, Diego Henrique de Almeida, Carlito Calil Junior & Francisco Antonio Rocco Lahr·Current Journal of Applied Science and Technology·2018
In Brazil is growing demand of short and medium span bridges not only in the new agriculture borders but also in the secondary roads in advanced regions. Traditional timber bridge not always meet the requirements of quality, they demand continuing maintenance and adequacy to actu...
Open access
Research Article10.9734/CJAST/2018/42784
Laurenn Borges de Macedo, Giovana Gobatto Balanco, Lucas José Marini, Tulio Hallak Panzera, André Luiz Christoforo & Francisco Antonio Rocco Lahr·Current Journal of Applied Science and Technology·2017
The aim of this study was to develop a hybrid panel produced with wood plies and wood particles of Pinus sp. as an alternative to plywood. Tests were performed to determine mechanical properties in static bending: elasticity modulus and rupture modulus, in addition to physical te...
Open access
Research Article10.9734/CJAST/2017/36951
Gabriel Oberon Bertoldi Oliveira, Roberto Vasconcelos Pinheiro, Felipe Nascimento Arroyo, Diego Henrique de Almeida, Tiago Hendrigo de Almeida, Diogo Aparecido Lopes Silva, André Luis Christoforo & Francisco Antonio Rocco Lahr·Current Journal of Applied Science and Technology·2019
Introduction: Wood is a material of biological origin widely used in construction, and its mechanical properties allow the material to form the lattice structure of roofs used in warehouses of industrial use, however, the paradigm as to the behaviour of the material makes the des...
Open access
Research Article10.9734/cjast/2019/v35i430188