Building codes and retaining walls 5.
Reinforced concrete retaining wall design pdf.
Design for earth loads retaining walls which set out a design.
Types of retaining walls tieback wall tieback is a horizontal wire or rod or a helical anchor use to reinforce retaining wall for stability one end of the tieback is secured to the wall while the other end is anchored to a stable structure i e.
The stem may have constant thickness along the length or may be tapered based on economic and construction criteria.
Coefþcient of friction is 0 4 and the unit weight of reinforced concrete is 24 knm 3 1.
3 gravity retaining wall gl1 gl2 retaining walls are usually built to hold back soil mass.
Two equations are developed in this.
Earthquake seismic design 7.
Determine the factors of safety against sliding and overturning.
The base is divided into two parts the heel and toe.
Gravity wall masonry or plain concrete cantilever retaining wall rcc.
Retaining wall design 10 editionth a design guide for earth retaining structures contents at a glance.
The wall can be either cast insitu figure 6 or precast figure 7.
Soil bearing and stability 8.
However retaining wallscanalsobeconstructed for aesthetic landscaping purposes.
In this example the structural design of the three retaining wall components is performed by hand.
These revisions are presented in final bdm format for simplicity.
Design and detailing of retaining walls.
Constructed using a reinforced concrete masonry stem steel reinforcement grouted into hollow concrete blockwork which is built on a reinforced concrete footing.
Calculate ground bearing pressures.
Concrete deadman driven into the ground or anchored into the earth with sufficient resistance.
Ce 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions.
Masonry cantilever retaining walls design and construction guide ma51 available from the concrete masonry association of australia.
Soil mechanics simplified 4.
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 o development of structural design equations.
Reinforced concrete walls cantilever retaining walls can be constructed entirely from reinforced concrete.
In 1990 the concrete masonry association of australia cmaa published masonry walling guide no 4.
Strength reduced from 136 7 to 114 9 in kips.
The design of reinforced concrete cantilever retaining walls shall be as stated herein.
Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used.
8 1 3 general design considerations the design of semi gravity reinforced concrete cantilever retaining walls shall be in accordance with the.
Forces on retaining walls 6.