Concrete Block Retaining Wall Design Example

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.
Concrete block retaining wall design example. Geotextile a permeable polymeric material which may be woven non woven or knitted. Earthquake seismic design 7. Ce 437 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions. Design the reinforced concrete masonry cantilever retaining wall shown in figure 2.
Soil bearing and stability 8. In this example the structural design of the three retaining wall components is performed by hand. F c 3000 psi fy 60 ksi natural soil development of structural design equations. Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.
In this example the structural design of the three retaining wall components is performed by hand. Soil mechanics simplified 4. They are commonly h or double u configuration. Forces on retaining walls 6.
Flexural and shear stresses are checked in the second design example and it is seen that the magnitudes are very low. 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. 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. Flexural and shear stresses in gravity retaining walls will almost always be of minor importance.
Assume level backfill no surcharge or seismic loading active earth pressure and masonry laid in running bond. Movement of the retaining wall. Two equations are developed in this. F c 3000 psi fy 60 ksi o development of structural design equations.
Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider. It is commonly used to separate. Building codes and retaining walls 5. Design procedure overview 3.
The walls are used in a variety of applications se including right of way restrictions protection of existing structures that must remain in place. 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. 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. Ce 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions.
Two equations are developed.