Heavy Timber Construction Flashcards
Heavy Timber Construction:
exterior walls mat’l:
non combustible masonry/concrete.
Heavy Timber Construction:
int columns/girders/beams/planking: mat’ls:
large solid/laminated timbers.
UBC req’s (nominal sizes):
int columns
≥ 8x8”,
UBC req’s (nominal sizes):
beams/girders
≥6” wide, 10” deep.
UBC req’s:
girders framed into masonry walls =
firecut
UBC req’s (nominal sizes):
floor decking
≥3”
w no concealed spaces below
UBC req’s (nominal sizes):
roof decking
≥2”
due to $ and limited availability today, heavy timber construction is typically built w:
glulam
replace large wood members for heavy loads/long spans.
also at unusual structural shapes,
and where appearance is consideration.
glulam
glulam typically comprised of lumber depth:
1.5” actual depth
glulam depths used as tight corner
¾” actual depth
glulam much higher allowable stress bc:
entire manuf. process can be carefully controlled.
glulam designated by
size and stress rating stamp
glulam appearance grades, best to worst:
premium,
architectural,
industrial.
wood planking typ called:
decking
