Concrete Block Retaining Wall Design Example
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.
Concrete block retaining wall design example. Two equations are developed. This tek addresses unreinforced gravity retaining walls only. Ce 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions. In this example the structural design of the three retaining wall components is performed by hand.
The coefficient of friction between the footing and foundation soil k 1 is 0 25 and the allowable soil bearing pressure is 2 000 psf 95 8. They are commonly h or double u configuration. Soil bearing and stability 8. Assume level backfill no surcharge or seismic loading active earth pressure and masonry laid in running bond.
F c 3000 psi fy 60 ksi natural soil development of structural design equations. Ce 437 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions. Soil mechanics simplified 4. Three different types of concrete masonry retaining walls are illustrated in figure 1.
It is commonly used to separate. Chapter 14 retaining walls july 2020 14 7 14 1 introduction retaining walls are used to provide lateral resistancefor a mass of earth or other material to accommodate a transportation facility. Geotextile a permeable polymeric material which may be woven non woven or knitted. They are the simple unreinforced vertical face gravity retaining wall the steel reinforced cantilever retaining wall and the segmental retaining wall.
Two equations are developed in this. Earthquake seismic design 7. Movement of the retaining wall. F c 3000 psi fy 60 ksi o development of structural design equations.
Design procedure overview 3. Forces on retaining walls 6. Traditional retaining wall solutions can be expensive and restrictive for example cast in situ construction is slow and expensive to build and precast retaining wall panels are restricted in height. In this example the structural design of the three retaining wall components is performed by hand.
The walls are used in a variety of applications se including right of way restrictions protection of existing structures that must remain in place. Concrete masonry units concrete blocks manufactured to provide an attractive durable stable face to a retaining wall. Building codes and retaining walls 5.