103f: Floor Frame Support Flashcards
Why would you fasten a column to a beam and pour concrete around the base?
Prevent lateral movement
What is the #1 rule for installing columns/posts
PLUMB
Does a column get stronger or weaker when facing lateral loads the longer it gets?
Weaker
2 main types of steel columns
1) adjustable (telepost)
2) non-adjustable (pipe)
If your wood post is touching concrete, what do you need?
Poly
3 groups of WOOD columns that are either laminated or pre-fabricated
1) built up dimensional lumber
2) solid wood/engineered
3) glue-lam
What does PSL stand for with posts or beams?
Parallel Strand Lumber
What footing do I need in my basement to support my load bearing wall?
T footing/strip
If I put a length of PT 2x6 as the plate for my load bearing wall in the basement, am I don’t or do I need something before the slab?
Screed board to prevent contact between slab and side of wall on either side
Why did my concrete guy leave us space for a pony wall when he could’ve just framed a window buck?
Likely above ground, plus it’s easier to frame a window with a pony wall
What does a pony wall achieve in relation to the beam sitting on it?
Transfer beam weight and supported floor weight to concrete foundation
There’s a big notch in my concrete wall…wtf
Beam pocket space to install beam
My beam is JUST under 5-1/2” from the ground…
You need to make sure your beam is either pressure treated or has poly on the ends
My boss told me to cut a pretty good angle on the end of our beam…what for?
Fire cut; let’s the beam fall into the house if it burns down in a house fire instead of spreading the walls apart
My joists are really wobbly even after I secured them to my beam…do I need something else?
Needs lateral support; blocking or cross-bridging or strapping
When I got to build my beam, what joist information do I need?
“Supported joist length” to know how much weight the beam will be holding up at a given point
Is my joist leg
Night the same as my span?
No. Span is the distance between the edge of one support and the Center of the beam (ie. inside edge of ladder box to Center of beam)
What main pieces of information do I need to construct a built up beam?
1) beam lumber size and ply’s
2) supported joist length
3) maximum span from span table
4) number of floors supported
What can happen to the ends of my beam if I stand in the Center?
Could cause deflection and your ends will “poke up”; this is why we use joints at 1/4 points
I have a 1/4 point in my layout at 5’-6” and my longest material left is 5’-5”…can I use it?
Yes, you have 150mm (6”) of wiggle room on each side of the 1/4 point
There are 3 types of engineered beam
1) LVL
2) PSL
3) glue laminated
What 3 ways can I prep the top of my foundation in order to anchor my joists?
1) sill plate
2) ladder box
3) cast in place with concrete forma
