An important factor affecting the strength and ultimate load of wood structures is the strength, stiffness and durability of its joints. Therefore, the behavior of nailed joints must be given proper consideration when designing and analyzing wood structures. Presently,formulas for determining the strength of nailed joints under withdrawal loads, as...
The growing use of light-frame wood trusses in the
residential and commercial construction has generated the
need for general analysis procedures for predicting
deformations and ultimate load of truss-plate joints, which
are the basis for accurate evaluation of structural
performance and design of complete truss assemblies. This
dissertation was aimed...
Nailed joints between sheathing and framing in light-frame
wood buildings play a vital role in assuring structural
safety by providing the stiffness needed to transfer the forces
among the building components and the medium of energy
dissipation during severe earthquakes and wind storms. However,
the exact nature of load transfer...
To apply accurate procedures of structural analysis
that are now available, the behavior of nailed joints in
light-frame wood buildings under long-term loads needs to
be studied. Such a behavior can best be evaluated by
testing specimens under constant loads, which requires
relatively simple testing arrangements. To provide for a...
The conventional studies for nailed joints vary
and no standard methods exist for evaluation of damping
in wood joints. Wood buildings experience earthquake-caused
oscillation of three or more Hz, but damping
values used in design are based on static test. To
evaluate damping at loading rates associated with
earthquakes, cyclic-load...
Wood components, usually assembled in green or semi-dry condition,
dry during the initial service life. To evaluate the effect
of such drying on joint stiffness and damping, cyclic-load tests
were conducted on single-nail joints of wood and plywood that had
been exposed to drying cycles. Additional effects studied were the...
Elasticity properties of wood studs are essential inputs for
the structural analysis of wood-stud wall systems.
A theoretical procedure was developed to determine the probability
distributions for the deflection-load relations of stud samples.
The procedure is based on the finite element analysis and a Monte-
Carlo type simulation and accounts...
Because of increasing competition from non-wood building
materials, efforts are being made to improve the design of stud walls.
The objective of this study is to develop and verify a theoretical
method and computer program that will predict the end fixity in stud
walls because of the sheathing being attached...
Elastic properties of plywood panels are essential for predicting
structural behavior of wood systems. The ASTM Standard D 3043-76
which evaluates the moduli of elasticity (MOE) of plywood, treats
these panels as one dimensional beams instead of two-dimensional
plates, which results in an overestimate of the MOE. Improved procedures
for...
Defining the inelastic behavior of nail joints is essential
in the development of a rational design procedure of wood-stud walls.
Prediction equations were developed for the inelastic behavior
of joints commonly found in wood-stud walls. The equations relate
three elastic moduli that define the average inelastic joint stiffness
to the...
