Foundation Prints Unit 12

Unit 12 Foundation Plans Identify footings on foundation plan page 123 Learning Objectives Identify footings on foundation plan Identify various components of a foundation system Recognize reinforcing steel on prints

Footings are the “feet” upon which the entire building rests Unit 12 page 123 are the “feet” upon which the entire building rests shown on the foundation plans footing sizes are determined by loads from building type of soil

Footings column footings Unit 12 page 123 usually wider & thicker due to concentrated loads column located in the center of the footing footing reinforcing steel column Plan View

Footings column footings centerline column footings

Footings column footings Unit 12 page 124 Figure 12 -2 Footings column footings

Footings wall footings Unit 12 page 124 support concrete foundation walls footings typically have a keyway plans will indicate T/F (top of footing elevation)

Footings wall footings reinforcing steel T/F 96’-6” A sometimes dashed sometimes solid

Foundation Walls are the base of the building Unit 12 page 124 Foundation Walls are the base of the building transfer the loads to the footings poured in-place concrete used on commercial buildings where extreme loads are present masonry block usually reinforced with steel

Footings wall footings Unit 12 page 125 Figure 12 - 5

Slabs slab-on-grade or (ground) new ACI term Unit 12 page 125 slab-on-grade or (ground) new ACI term unreinforced reinforced - when subjected to settling or heavy loads mesh reinforcing steel post tensioned steel fiber floating slab or monolithic slab one continuous unit

Slab-on-Grade - Plan View no joints saw cut pattern

Slabs slabs on metal deck structural slabs flat slabs waffle or dome pan beam & joist

Waterproofing Foundations Unit 12 page 125 protection against underground water consist of mopping the outside of the wall with a tar or asphalt like material a layer of stone is laid against wall to allow the foundation to drain of water

Foundations Unit 12 page 126 Figure 12 -6

Foundations Unit 12 page 126 Figure 12 - 7

Test Your Knowledge take 10 minutes to complete the test on page 127

Concrete Foundation for an Office Unit 12 Concrete Foundation for an Office Take 10 minutes & complete the questions for Activity 12-1 on page 129 refer to large prints 12-1

Concrete Foundation for a Residence Unit 12 Concrete Foundation for a Residence Take 10 minutes & complete the questions for Activity 12-2 on page 130 refer to large prints 12-2 END OF UNIT 12