The loads that are of primary concern are the lateral earth pressures induced by the retained soil.
Reinforcement counterfort retaining wall design.
Classification of retaining walls.
The toe is the other part of the base.
Designing the cantilever wall stem 9.
The main reinforcement is provided horizontally along the length of the wall.
Earthquake seismic design 7.
1 gravity wall masonry or plain concrete 2 cantilever retaining wall rcc inverted t and l 3 counterfort retaining wall rcc 4 buttress wall rcc.
Provide the distribution steel.
Design of counterfort retaining wall.
The counterfort retaining wall is a type of retaining wall with counterforts attached to the inside face of the wall to further resist lateral thrust and materials used for retaining walls are treated lumber concrete block systems stone brick and poured concrete.
Under normal conditions the lateral earth pressure is at rest condition.
Thickness of counterfort 6 of height of wall.
The design of a retaining wall must account for all applied loads.
The counter forts act as tension stiffeners and connect the wall slab and the base to reduce the bending and shearing stresses.
Counterfort retaining walls 12.
Soil bearing and stability 8.
Design example cantilever retaining wall.
The base is also divided into two parts the heel and toe.
Thickness of heel slab and stem 5 of height of wall.
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.
They consist of a relatively thin stem and a base slab.
Counter fort buttressed retaining wall.
In no case thickness of any component be less than 300mm.
The heel is the part of the base under the backfill.
Forces on retaining walls 6.
Cantilever retaining walls are constructed of reinforced concrete.
The ties are provided horizontally for the full value of reaction to prevent slab separating from counterforts.
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 of toe slab the base width is approximately taken equal to 0 6 h to 0 7 h where h is the overall height of the wall.
Counterfort retaining wall rcc.
Also check for shear at the junction.
Provide enough development length.
However retaining walls can also be constructed for aesthetic landscaping purposes.
Thickness of toe slab buttress not provided 8 of height of wall.
Building codes and retaining walls 5.
Counterfort walls are cantilever walls strengthened with counter forts monolithic with the back of the wall slab and base slab.
This excel sheet introduces design of counterfort retaining wall according.