Concrete Foundation Wall Design Example

Bearing wall of a 10 story building founded on soil.

Concrete foundation wall design example.

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. Using table 4 the wall can be adequately reinforced using no. 9 bars at 72 in. Included are charts and graphs to assist in the design of structural systems with and without the wall laterally supported at the top.

Reinforced concrete foundations or footings transmit loads from a structure to the supporting soil. This tek contains details for various types of concrete masonry foundation walls with accompanying text as appropriate. Chapter 3 foundations and foundation walls 53 3 2 concrete foundations regardless of seismic design category the minimum specified concrete strength for foundations and foundation walls is 2 500 pounds per square inch psi with higher strength necessary when a foundation is exposed to the weather and the house is located in a moderate or. A name for width dimension a name for area b width of retaining wall stem at base width resisting shear stress bo perimeter length for two way shear in concrete footing design b spread footing or retaining wall base dimension in concrete design cc shorthand for clear cover.

This design example focuses on the analysis and design of a tapered cantilever retaining wall including a comparison with model results from the engineering software programs spwall and spmats. Reinforced concrete wall design basics mike o shea p e. It is the purpose of this article to outline the procedures for adequately designing concrete foundation walls subjected to lateral soil pressure. This session is not intended to teach concrete design but more of an awareness of why things are the way they are american concrete institute building code requirements for.

5 6 footing design examples. Footings example 1 design of a continuous wall footing determine the size and reinforcement for the continuous footing under a 12 in. The reader is referred to tek 3 11 concrete masonry basement wall construction tek 19 3b preventing water penetration in below grade concrete masonry walls and ncma s basement manual for more detailed design and. The building has a 10 ft high basement.

The retaining wall is fixed to the reinforced concrete slab foundation with a shear key for sliding resistance. The bottom of the footing is 13 ft below finished grade. Footings example 1 design of a square spread footing of a seven story building design and detail a typical square spread footing of a six bay by five bay seven story building founded on stiff soil supporting a 24 in. Arch 331 note set 27 1 f2015abn 417 foundation design notation.

The following sections detail design methods for both wall types.