103f: Floor Frame Support

Question 1

Why would you fasten a column to a beam and pour concrete around the base?

Answer 1

Prevent lateral movement

Question 2

What is the #1 rule for installing columns/posts

Answer 2

PLUMB

Question 3

Does a column get stronger or weaker when facing lateral loads the longer it gets?

Answer 3

Weaker

Question 4

2 main types of steel columns

Answer 4

1) adjustable (telepost)
2) non-adjustable (pipe)

Question 5

If your wood post is touching concrete, what do you need?

Answer 5

Poly

Question 6

3 groups of WOOD columns that are either laminated or pre-fabricated

Answer 6

1) built up dimensional lumber
2) solid wood/engineered
3) glue-lam

Question 7

What does PSL stand for with posts or beams?

Answer 7

Parallel Strand Lumber

Question 8

What footing do I need in my basement to support my load bearing wall?

Answer 8

T footing/strip

Question 9

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?

Answer 9

Screed board to prevent contact between slab and side of wall on either side

Question 10

Why did my concrete guy leave us space for a pony wall when he could’ve just framed a window buck?

Answer 10

Likely above ground, plus it’s easier to frame a window with a pony wall

Question 11

What does a pony wall achieve in relation to the beam sitting on it?

Answer 11

Transfer beam weight and supported floor weight to concrete foundation

Question 12

There’s a big notch in my concrete wall…wtf

Answer 12

Beam pocket space to install beam

Question 13

My beam is JUST under 5-1/2” from the ground…

Answer 13

You need to make sure your beam is either pressure treated or has poly on the ends

Question 14

My boss told me to cut a pretty good angle on the end of our beam…what for?

Answer 14

Fire cut; let’s the beam fall into the house if it burns down in a house fire instead of spreading the walls apart

Question 15

My joists are really wobbly even after I secured them to my beam…do I need something else?

Answer 15

Needs lateral support; blocking or cross-bridging or strapping

Question 16

When I got to build my beam, what joist information do I need?

Answer 16

“Supported joist length” to know how much weight the beam will be holding up at a given point

Question 17

Is my joist leg
Night the same as my span?

Answer 17

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)

Question 18

What main pieces of information do I need to construct a built up beam?

Answer 18

1) beam lumber size and ply’s
2) supported joist length
3) maximum span from span table
4) number of floors supported

Question 19

What can happen to the ends of my beam if I stand in the Center?

Answer 19

Could cause deflection and your ends will “poke up”; this is why we use joints at 1/4 points

Question 20

I have a 1/4 point in my layout at 5’-6” and my longest material left is 5’-5”…can I use it?

Answer 20

Yes, you have 150mm (6”) of wiggle room on each side of the 1/4 point

Question 21

There are 3 types of engineered beam

Answer 21

1) LVL
2) PSL
3) glue laminated

Question 22

What 3 ways can I prep the top of my foundation in order to anchor my joists?

Answer 22

1) sill plate
2) ladder box
3) cast in place with concrete forma