Concrete Foundation Wall Section

This section provides specific description of materials and systems common in foundation walls and below grade building enclosure systems in general.

Concrete foundation wall section.

Except where required by section r406 2 to be waterproofed foundation walls that retain earth and enclose interior spaces and floors below grade shall be dampproofed from the higher of a the top of the footing or b 6 inches 152 mm below the top of the basement floor to the finished grade masonry walls shall have not less than 3 8 inch 9 5 mm portland cement parging applied to the. Poured wall w brick contained slab pdf. Stepdown section for garage dwg. Concrete foundation stem walls that support light frame above grade walls shall be designed and constructed in accordance with this section.

Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used. Typical wall section w crawl space slab dwg. Poured concrete foundation wall isometic view pdf. Concrete foundation walls regardless of the type of concrete foundation wall selected the designer needs to determine the nominal and factored loads that in turn govern the type of wall reinforced or unreinforced that may be appropriate for a given application.

2 5 clear to strength steel 5 12 rather than the designed 5 10 bending strength of the section has been reduced by about 16. 2 the thickness of concrete in flat insulating concrete form foundation walls shall be not less than the greater of a 140 mm or b the thickness of the concrete in the wall above. Concrete masonry is used to construct various foundation wall types including full basement walls crawlspace walls stem walls and piers. The following sections detail design methods for both wall types.

3 foundation walls made of flat insulating concrete form units shall be laterally supported at the top and at the bottom. Strength reduced from 136 7 to 114 9 in kips. Codes give definitive guidance on when to use the foundation wall provisions of irc section r404 rather than the footing stem wall provisions of irc section r403. Typical interior masonry bearing wall footing.

Stem walls not laterally supported at top. Concrete masonry is well suited for below grade applications because of its strength durability economy and resistance to fire insects and noise. In these cases the concrete foundation wall is placed against the blind side waterproofing membrane. The 2000 irc commentary notes that the foundation wall provisions are primarily for masonry and concrete basement walls.

Concrete stem walls that are not monolithic with slabs on ground or are not otherwise laterally supported by slabs on ground and retain 48 inches 1219 mm or less of unbalanced fill measured from the top of.