Design example cantilever retaining wall.
Reinforcement counterfort retaining wall design.
Forces on retaining walls 6.
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.
Preliminary proportioning of counterfort retaining wall.
They consist of a relatively thin stem and a base slab.
This excel sheet introduces design of counterfort retaining wall according.
The counter forts act as tension stiffeners and connect the wall slab and the base to reduce the bending and shearing stresses.
Design procedure overview 3.
Pier and pile foundations 11.
The ties are provided horizontally for the full value of reaction to prevent slab separating from counterforts.
However retaining walls can also be constructed for aesthetic landscaping purposes.
Soil mechanics simplified 4.
Soil bearing and stability 8.
Counter fort buttressed retaining wall.
The design of a retaining wall must account for all applied loads.
Design of counterfort retaining wall.
Provide enough development length.
Designing the cantilever wall stem 9.
Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider.
Thickness of counterfort 6 of height of wall.
The heel is the part of the base under the backfill.
The main reinforcement is provided horizontally along the length of the wall.
Under normal conditions the lateral earth pressure is at rest condition.
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.
Counterfort retaining wall rcc.
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 walls are cantilever walls strengthened with counter forts monolithic with the back of the wall slab and base slab.
The base is also divided into two parts the heel and toe.
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.
Counterfort retaining walls 12.
Earthquake seismic design 7.
Provide the distribution steel.
Thickness of toe slab buttress not provided 8 of height of wall.
In no case thickness of any component be less than 300mm.
Building codes and retaining walls 5.
The toe is the other part of the base.
Thickness of heel slab and stem 5 of height of wall.
Classification of retaining walls.