Transcript IET 222 COMMERCIAL ARCHITECTURE DESIGN & DRAFTING

Unit 12
Foundation Plans
page 123
Learning Objectives
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Identify footings on foundation
plan
Identify various components of a
foundation system
Recognize reinforcing steel on
prints
Footings
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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
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Footings
column footings
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Unit 12
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usually wider & thicker due to
concentrated loads
column located in the center of
the footing
reinforcing
steel
Plan View
footing
column
Footings
column footings
column
centerline
column footings
Footings
column footings
Unit 12
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Figure 12 -2
Footings
wall footings
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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
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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
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masonry block
usually reinforced with steel
Footings
wall footings
Unit 12
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Figure 12 - 5
Slabs
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slab-on-grade or (ground) new
ACI term
unreinforced
 reinforced - when subjected to
settling or heavy loads
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 mesh
 reinforcing steel
 post tensioned
 steel fiber
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floating slab or monolithic slab
one continuous unit
Slab-on-Grade - Plan View
no joints
saw cut pattern
Slabs
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slabs on metal deck
structural slabs
flat slabs
 waffle or dome
 pan
 beam & joist
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Waterproofing
Foundations
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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
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Figure 12 -6
Foundations
Unit 12
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Figure 12 - 7
Test Your Knowledge
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take 10 minutes to complete the
test on page 127
Concrete Foundation for an
Office
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Unit 12
Take 10 minutes & complete the
questions for Activity 12-1 on
page 129 refer to large prints 12-1
Concrete Foundation for a
Residence
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Unit 12
Take 10 minutes & complete the
questions for Activity 12-2 on
page 130 refer to large prints 12-2
END OF UNIT 12