The objective of this research was to develop a one-third scale model of full-size
(prototype) metal-plate-connected (MPC) wood truss joints using similitude theory. The
prototype metal connector plates in MPC joints were modeled using thin galvanized sheet
metal and short staples. Truss grade wood material was ripped to one-third scale...
The objective of this research was to evaluate the duration of load factor for
metal-plate-connected (MPC) truss joints subjected to various cyclic loading conditions.
Heel and tension-splice joints from a standard 30-foot span Fink truss constructed from
nominal 2x4 Douglas-fir lumber were tested. A testing frame similar to that developed...
As part of a roof framing system, light-frame wood trusses often require lateral bracing to reduce the effective length for flexural buckling of compression web members. This observational research investigates the design requirements for discrete compression web bracing intended to provide such lateral support. Four simple brace analysis methods based...
Nailed connections have nonlinear load-displacement
relations. Modeling these connections in an assembled
structure would require a great amount of computational time
because of the large number of degrees of freedom.
Replacing these connections with energetically-equivalent
nonlinear springs reduces the number of degrees of freedom,
and leads to computational efficiency in...
This thesis explores the development of biomechanical models for evaluating a new class of passive mechanical implants for orthopedic surgery. The proposed implants take the form of passive engineered mechanisms and will be used to improve the functional attachment of muscles to tendons and bone by modifying the transmission of...