Retaining Wall Steel Reinforcement Design

Cantilevered retaining walls are made from an internal stem of steel reinforced cast in place concrete or mortared masonry often in the shape of an inverted t.

Retaining wall steel reinforcement design.

Reinforcement details the sketch below shows the main reinforcement requirements for the retaining wall. 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. Soil bearing and stability 8. Calculate the development length for the steel reinforcement of the stem section of a concrete cantilever retaining wall.

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. Building codes and retaining walls 5. Forces on retaining walls 6. Today through technological advancements steel and geosynthetics are used for soil reinforcement to secure retaining walls bridge abutments parking area supports and landscape projects.

The base is divided into two parts the heel and toe. Reinforced earth is the reinforced earth company s flagship mse retaining wall product first introduced in the united states in 1971. Design procedure overview 3. Stem steel development length.

Earthquake seismic design 7. 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. For reasons of buildability the actual reinforcement details may well be slightly different. 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.

Extend the vertical reinforcement steel bars beyond the top level of the lower storey. Calculate the lateral earth. The stem may have constant thickness along the length or may be tapered based on economic and construction criteria. Strength of reinforced concrete sections.

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. 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. The system s soil reinforcements are inextensible high adherence ha steel reinforcing strips or ladders which are bolted to tie strips embedded in precast concrete facing panels.