Concrete Block Retaining Wall Design Example

Design the reinforced concrete masonry cantilever retaining wall shown in figure 2.

Concrete block retaining wall design example.

In this example the structural design of the three retaining wall components is performed by hand. Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider. Earthquake seismic design 7. Assume level backfill no surcharge or seismic loading active earth pressure and masonry laid in running bond.

They are commonly h or double u configuration. The concrete alone would cost more than the srw. F c 3000 psi fy 60 ksi natural soil development of structural design equations. 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.

Two equations are developed in this. Soil bearing and stability 8. 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.

Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance. Building codes and retaining walls 5. The walls are used in a variety of applications se including right of way restrictions protection of existing structures that must remain in place. In the past a designer would use a poured in place concrete wall with a veneer to achieve the same look.

Geotextile a permeable polymeric material which may be woven non woven or knitted. Simac specifying segmental retaining walls landscape architecture march 1994. Design manual for segmental retaining walls third edition. Concrete masonry units concrete blocks manufactured to provide an attractive durable stable face to a retaining wall.

National concrete masonry association 2009. 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. Forces on retaining walls 6. Movement of the retaining wall.

In this example the segmental retaining wall meets the structural and aesthetic needs of the designer because it matches the scale texture and color of the building s exterior facade. Two equations are developed. Ce 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions. F c 3000 psi fy 60 ksi o development of structural design equations.

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. Design procedure overview 3. In this example the structural design of the three retaining wall components is performed by hand.