S. Karshenas et E. Mizian, INVESTIGATION OF STRUCTURAL-PROPERTIES OF USED FORMWORK STRINGERS, Journal of materials in civil engineering, 8(1), 1996, pp. 51-56
Citations number
10
Categorie Soggetti
Material Science","Engineering, Civil","Construcion & Building Technology
Results of an experimental investigation of the structural properties
of used slab formwork stringers are presented. The samples tested were
obtained from eight concrete construction sites in Chicago, Milwaukee
, and Minneapolis-St. Paul. All samples collected were 100 x 150 mm (4
X 6 in.) nominal-size solid lumber. Samples with legible mill stamp w
ere Douglas fir. Grades varied from Select Structural to No. 2. Sample
s were tested according to the guidelines specified by ASTM for lumber
in structural sizes. This paper presents the observed values for shea
r modulus, modulus of elasticity, modulus of rupture, and shear streng
th parallel to grain. The observed structural properties are modeled w
ith appropriate probability distributions. The observed data are used
to investigate the correlation between stringer modulus of rupture and
modulus of elasticity and modulus of rupture acid shear strength.