Reinforced Concrete Retaining Wall Design

Coefþcient of friction is 0 4 and the unit weight of reinforced concrete is 24 knm 3 1. 2 5 clear to strength steel 5 12 rather than the designed 5 10 bending strength of the section has been reduced by about 16. 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.

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The base is divided into two parts the heel and toe.

Reinforced concrete retaining wall design.

Design of cantilever and counter fort retaining walls study material lecturing notes assignment reference wiki description explanation brief detail posted on. Ce 537 spring 2011 retaining wall design example1 8. Civil design of reinforced concrete and brick masonry structures retaining walls. Strength reduced from 136 7 to 114 9 in kips.

Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider. Reinforced concrete wall is used in case where beam is not provided and load from the slab is heavy or when the masonry wall thickness is restricted. There are three different forms of this type of wall all of which are designed to resist overturning and sliding failure. The taller the retaining wall the more likely that counterforts and beams spanning between them will be necessary.

Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used. Design a reinforced concrete retaining wall for the following conditions. Development of structural design equations. Design procedure overview 3.

Building codes and retaining walls 5. 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. Plain concrete wall when reinforcement 0 4. F c 3000 psi fy 60 ksi.

Reinforced concrete wall is classified as. Soil bearing and stability 8. This post will focus on the design of reinforced concrete cantilever walls. Reinforced concrete wall is designed as a compression member.

Design the wall and base reinforcement assuming fcu 35 knm 2 f y 500 knm 2 and the cover to reinforcement in the wall and base are respectively 35. Designed for effective peak ground acceleration of 0 51g d 10 15 reinforced concrete retaining wall type 2 and 2sw concrete cantilever wall with flat backfill and sloping front face in western wa. Determine the factors of safety against sliding and overturning. 17 07 2016 05 43 pm.

Earthquake seismic design 7. Two equations are developed in this section for determining the thickness reinforcement required to resist the bending moment in the retaining wall components stem toe and heel. Forces on retaining walls 6. The stem may have constant thickness along the length or may be tapered based on economic and construction criteria.

Reinforced concrete retaining wall type 1 and 1sw concrete cantilever wall with flat backfill and flat front face in western wa. The primary difference between them is their height. Calculate ground bearing pressures. Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.

Soil mechanics simplified 4. In this example the structural design of the three retaining wall components is performed by hand.

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