Concrete Foundation Wall Section

Stem walls not laterally supported at top.

Concrete foundation wall section. 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. 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. 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.

Stepdown section for garage dwg. 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. This section provides specific description of materials and systems common in foundation walls and below grade building enclosure systems in general. Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used.

Concrete foundation stem walls that support light frame above grade walls shall be designed and constructed in accordance with this section. Typical wall section w crawl space slab pdf. Typical wall section w crawl space slab dwg. 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.

Concrete masonry is used to construct various foundation wall types including full basement walls crawlspace walls stem walls and piers. Poured wall w brick contained slab pdf. Strength reduced from 136 7 to 114 9 in kips. In these cases the concrete foundation wall is placed against the blind side waterproofing membrane.

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. Descriptions and guidelines are provided on the following topics. Typical interior masonry bearing wall footing. 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.