Retaining Wall Steel Reinforcement Design
Strength of reinforced concrete sections.
Retaining wall steel reinforcement design. Reinforced concrete cantilever retaining wall analysis and design aci 318 14 reinforced concrete cantilever retaining walls consist of a relatively thin stem and a base slab. The base is divided into two parts the heel and toe. Building codes and retaining walls 5. Calculate the lateral earth.
Calculate the development length for the steel reinforcement of the stem section of a concrete cantilever retaining wall. 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. Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance. Extend the vertical reinforcement steel bars beyond the top level of the lower storey.
The length of the extension should be equal to the required splice length specified by the design engineer or a minimum length of 40d where d diameter of smaller steel bar being spliced. Earthquake seismic design 7. Forces on retaining walls 6. Reinforcement details the sketch below shows the main reinforcement requirements for the retaining wall.
Modular retaining wall systems there are three types of modular units used for retaining wall systems. For reasons of buildability the actual reinforcement details may well be slightly different. These walls cantilever loads like a beam to a large structural footing converting horizontal pressures from behind the wall to vertical pressures on the ground below. The stem may have constant thickness along the length or may be tapered based on economic and construction criteria.
Calculate the distance to steel and the area of the steel reinforcement for the toe section of the base of a concrete cantilever retaining wall. Design procedure overview 3. Soil bearing and stability 8. Reinforced earth is the reinforced earth company s flagship mse retaining wall product first introduced in the united states in 1971.
Soil mechanics simplified 4. Grade of rebar. Hence provide h12 at 200 mm centres a s 566 mm 2 m in bottom face b of base and as distribution steel in base and stem of wall. Today through technological advancements steel and geosynthetics are used for soil reinforcement to secure retaining walls bridge abutments parking area supports and landscape projects.