•Connecting to the Foundation & Bearing Module Learning Outcomes: Module Contents: MODULE 11 – Floor Framing •Posts and Beams •Floor Joists •Connecting to the Foundation & Bearing •Doing the Twist? •Openings & Stairs •Interior Walls •Cantilevers & Blocking •Subfloor Module 11 ARCH 28544 – Architectural Studio 2

Posts and Beams Post: vertical support for beam Beam: horizontal framing member that supports load from framing members (joist, trusses, rafters)

Posts and Beams

Floor Joists Wood joists Note joist hanger

Floor Joists Wood joists Engineered wood Quick and easy to work with, saving time + $ Protect from weather when storing Very long spans

TJI for roof…

Engineered Timber Floor Joist Floor Joists Engineered Timber Floor Joist Engineered wood + steel Pre-engineered = time = less site waste Less chance of losing structural integrity from cutting holes in web Easily run services + wood nailing face for ceiling + deck

Floor Joists Open-web steel joist (Eames house, by Charles Eames 1945-49. Pacific Palisades California)

Doing the Twist? Material between framing members (continuous) to evenly distribute loads between members Helps to keep framing members from twisting Diagonal bridging can be wood or metal Brace joists mid-span

Connecting to the Foundation & Bearing Most common and inexpensive way

Connecting to the Foundation & Bearing Below: a double 2x6 sill has been secured with anchor bolts 2x10 floor joist at 16”o.c. (38x235mm, 400mm o.c.) are toe-nailed to them A strip of sealant is seen between the wood and concrete Back-filling is not done on the outside of the basement until the floor framing is in place to serve as bracing

Projections Not to exceed 400mm (16”) for 38x184mm (2x8) joists OR 600mm (24”) for larger joists Should not carry loads from additional floors – unless they are engineered Check out this video explaining how to reinforce TJIs.

Openings & Stairs

Subfloor / Sheathing Not ‘sheeting’ – SHEATHING! First material covering the framing members (roof, floor and walls) Plywood OSB 4x8 sheets

2nd floor

Interior Walls Steel studs are flimsy until the drywall is attached and are non-loadbearing Wood studs are better for hanging things like cabinets from and can be loadbearing.

Interior Walls Make sure that you include headers above any large door openings Posts can be made by combining several studs – make sure that you support them from below!

Open spaces + glulams

Open spaces + glulams

Oh and…

Oh and…

Oh and…

REVIEW… Come up to the board and identify missing elements used to frame a floor in this drawing: Module 11

Example

Required Reading Reminder: Course Reader: Canadian Wood-Frame House Construction – CMHC: “Floor Framing” p.89-108. “Stairs” p.215-224. Module 11 ARCH 28544 – Architectural Studio 2

Sources: Module 11 ARCH 28544 – Architectural Studio 2