Design considerations for mortise and tenon
The bending moment capacity of 2-inch, 3-inch, and 4-inch-diameter southern yellow pine tenons
without shoulders or cross pins (Fig.
When early English settlers set about carving themselves a life in the wilderness of America, they built their houses using a kind of joinery they were familiar with: mortise and tenon
2005 also cite the work of Sparkes (1968) which determined that rectangular and rounded M&T joints were similar in strength and that round mortises with rectangular tenons
were substantially weaker.
We've used traditional mortise and tenon
construction (see Fig.
The tenoners Henredon uses have up to 29 individual adjustments, involving the machine's trim saw, tenon
heads, score saws and cope heads.
on the lower ends of the corner posts (which frame into the sill) were cut slightly longer than the depth of the sill so that loads applied to the posts were transferred directly to the bed of the testing machine.
The walls of the mortises for the side frame tenons
were thoroughly coated with PVA adhesive before the tenons
Most of the tests were conducted with 2-inch-diameter tenons
, but a limited number of specimens with 3- and 4-inch- diameter tenons
Owing to the reduced cross section of the tenons
compared to that of the members on which the tenons
are cut, round mortise and tenon
joints must be considered as semi rigid.
The principle objectives of the study were to obtain information concerning the cyclic performance of representative chairs with 1) glued only tenons
; 2) glued and cross-pinned tenons
; and 3) unglued cross-pinned tenons
In general, joints with tenons
15 mm in width and without tenon
shoulder failed as a result of fracture of the tenon
, whereas joints with tenons
15 mm in width and with tenon
shoulder failed as a result of glue-line fractures, splitting of the tenon
and indentation of mortise.
These two holes that are now on the face of each head post will host the side rail tenons
Then remove the staples from the tenons
and clean up the rough edges so you can reinstall the drawer front (Photo 1).
a clarifier certaines informations parues dans la Presse Tunisienne.