Concrete Block Retaining Wall Design Example

F c 3000 psi fy 60 ksi o development of structural design equations.

Concrete block retaining wall design example.

Flexural and shear stresses are checked in the second design example and it is seen that the magnitudes are very low. 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. Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider.

Let s take a fresh look and see how concrete interlocking blocks or more commonly known as concrete lego blocks can be used as the solution. 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. 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.

Assume level backfill no surcharge or seismic loading active earth pressure and masonry laid in running bond. Two equations are developed. Geotextile a permeable polymeric material which may be woven non woven or knitted. Two equations are developed in this.

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. Building codes and retaining walls 5. Flexural and shear stresses in gravity retaining walls will almost always be of minor importance. Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.

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. Design the reinforced concrete masonry cantilever retaining wall shown in figure 2. Soil mechanics simplified 4. Concrete masonry units concrete blocks manufactured to provide an attractive durable stable face to a retaining wall.

Earthquake seismic design 7. Design procedure overview 3. Movement of the retaining wall. Sketches of the retaining wall forces should be considered to properly distinguish the different forces acting on our retaining wall as tackled in the previous article retaining wall.

Soil bearing and stability 8. It is commonly used to separate. F c 3000 psi fy 60 ksi natural soil development of structural design equations. In this example the structural design of the three retaining wall components is performed by hand.

Ce 437 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions.