Two equations are developed in this section for determining the thickness reinforcement required.
Concrete retaining wall reinforcement design.
Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider.
Design is similar to a rc column breadth equal to thickness of wall and depth equal to 1m.
Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used.
F c 3000 psi fy 60 ksi o development of structural design equations.
N ultimate load design with material factors based on characteristic soil.
Rcc wall is.
Plain concrete wall when reinforcement 0 4.
When depth is large it is called rc wall.
Earthquake seismic design 7.
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.
F c 3000 psi fy 60 ksi natural soil development of structural design equations.
Strength reduced from 136 7 to 114 9 in kips.
Building codes and retaining walls 5.
Forces on retaining walls 6.
In 1990 the concrete masonry association of australia cmaa published masonry walling guide no 4.
Soil bearing and stability 8.
Design a reinforced concrete retaining wall for the following conditions.
Determine the factors of safety against sliding and overturning.
Design procedure overview 3.
Built on a reinforced concrete footing.
Two equations are developed.
In this example the structural design of the three retaining wall components is performed by hand.
Reinforced concrete wall is classified as.
The stem may have constant thickness along the length or may be tapered based on economic and construction criteria.
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.
Reinforced concrete wall when reinforcement 0 4.
Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.
Design for earth loads retaining walls which set out a design methodology and safe load tables for these structures.
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.
Soil mechanics simplified 4.
Calculate ground bearing pressures.
Load from slab is transferred as axial load to wall.
Ce 437 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions.
Coefþcient of friction is 0 4 and the unit weight of reinforced concrete is 24 knm 3 1.