Concrete Retaining Wall Footing Design

Basement walls foundation walls exterior walls and other vertical concrete work exposed to the weather 2 500 3 000 3 000 rco chapter 4 foundations 23 excerpt of table 402 2 strength at 28 days in psi see footnotes for weathering potential and air entrained concrete precast concrete 402 3 designed per section 404 5.

Concrete retaining wall footing design.

Most are patented systems that are typically battered sloped backward primarily to reduce lateral soil pressure thus requiring a minimal foundation. Retaining walls can crumble for a wide variety of reasons most related to the improper design of the walls itself. In the case of concrete retaining walls the issue may be inadequate weak or poorly mixed concrete. Wall footing design is carried out with some assumptions that should be considered while designing.

Concrete retaining wall footing size the depth to the bottom of the base slab should be kept at a minimum of two feet. In addition these retaining walls are available in four natural stone textures to. Footings lie under the basement crawlspace or stem wall and. And mse walls and retaining walls.

Superior walls precast concrete foundations are the best solution for residential architects looking for dimensional accuracy energy efficiency state of the art design drawings quality controlled manufacturing and certified installation. Spread footing driven pile and drilled shaft design. Redi rock retaining walls are installed like giant lego blocks making them fast and easy to build. The first assumption is to consider that soil pressure is distributed linearly throughout.

Many manufacturers offer various systems of stacked segmental concrete units steel bins or other devices that retain soil by stacking individual components. However it should always be below the seasonal frost line and that often is much deeper in northern climates. 2 3 4 respectively. Redi rock blocks are made of architectural grade precast concrete but they feature the look of natural stone giving reinforced retaining walls a beautiful look.

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 construction information refs. Concrete strength al ൯ne for an 10 thick wall with 5 10 and 2 5 clear to strength steel will only reduce the nominal moment capacity of the secti對on from 136 68 to 135 66 inch kips 尩 if the concrete strength decreased from 3 5 to 3 0 ksi.