The size and spacing of vertical reinforcement shown in table 1807 1 6 2 is based on the use of reinforcement with a minimum yield strength of 60 000 pounds per square inch psi 414 mpa.
Nominal thickness irc concrete walls.
The table shown is based on aci 332 14 residential code requireme nts for structural concrete aci 332 14 and commentary tabl e 8 2 1 3f modified per aci 440 guide for design and construction of structural.
B 5 at 47 o c.
C 6 at 43 o c.
Concrete foundation walls shall comply with the following.
An 8 foot high flat concrete foundation wall of nominal 10 inch thickness is subjected to 6 feet of unbalanced backfill.
If the soil class is gp what is the minimum vertical reinforcement required.
Stronghold stay in place concrete forms conform to astm e 2634 standard specification for ice as referenced in irc r404 1 3 3 6 1 irc r r608 4 4 and ibc 1903 4.
See section r404 1 3 2 for minimum reinforcement required for basement walls supporting above grade concrete walls.
Minimum nominal wall thickness inches 8 10 12 8 10 12 8 10 12 8.
Vertical reinforcement with a minimum yield strength of 40 000 psi 276.
Concrete foundation walls support the home standing above so any weakness can undermine the stability of the house.
Anchor bolts are generally required to anchor the wood framing of the superstructure to the concrete elements of the foundation.
The irc provides three examples of wall systems that are commonly used and the minimum parameters for each in section r608 3.
The thickness or depth of concrete basement walls plays an integral role in their long term strength and durability.
Wood in contact with concrete is generally required to be preservative treated against decay as concrete tends to wick soil moisture.
Foam plastic panels are 1 45 pcf nominal density 2 75 in thick and the concrete wall thickness is 4 6 8 10 or 12 inches.
Concrete wall forms set for residential foundation showing a nominal 8 in.
R608 3 1 flat wall systems.
Concrete masonry is used to construct various foundation wall types including full basement walls crawlspace walls stem walls and piers.
Wall thickness with an actual thickness set at 7 5 8 in.
A 4 at 38 o c.
See table r608 3 for tolerance from nominal thickness permitted for flat walls.
The irc minimum is 6 in.
The appropriate depth of the wall depends on several factors and there is no single standard for every home.
Concrete masonry is well suited for below grade applications because of its strength durability economy and resistance to fire insects and noise.
Dr means design is required in accordance with the applicable building code or where there is no code in accordance with aci 318.
The thickness shall comply with the requirements of table 1807 1 6 2.
Quick reference to pages of guide.
R608 3 concrete wall systems.
