Concrete Retaining Wall Design Pdf
Design procedure overview 3.
Concrete retaining wall design pdf. Retaining walls example 3 16 design of a cantilever retaining wall bs 8 110 the cantilever retaining wall shown below is backþlled with granular material having a unit weight of 19 knm 3 and an internal angle of friction of 30. N wall height n soil type n sloping land below and or above the retaining wall n loads above and behind the retaining wall eg parked cars. Soil bearing and stability 8. 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.
Two equations are developed in this. From the barrier face. Concrete deadman driven into the ground or anchored into the earth with sufficient resistance. Concrete strength al ൯ne for an 10 thick wall with 5 10 and 2 5 clear to strength steel will only reduce the nominal moment capacity of the secti對on from 136 68 to 135 66 inch kips 尩 if the concrete strength decreased from 3 5 to 3 0 ksi.
The retaining wall supports 15 0 of level roadway embankment measured from top of wall to top of footing. The wall will be built adjacent to the roadway shoulder where traffic is 2 ft. Foundation engineering chapter 8. The base is divided into two parts the heel and toe.
In this example the structural design of the three retaining wall components is performed by hand. The stem may have constant thickness along the length or may be tapered based on economic and construction criteria. Soil mechanics simplified 4. Ce 537 spring 2011 retaining wall design example 1 8 design a reinforced concrete retaining wall for the following conditions.
Proprietary or esign build din wisconsin the wall selection criteria and design policies presented in this chapter are to ensure consistency of standards and applications used throughout wisdot projects. Assuming that the allowable bearing pressure of the soil is 120 knm 2 the. Retaining walls such as mse walls with precast concrete panel facing that are susceptible to. 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.
Forces on retaining walls 6. F c 3000 psi fy 60 ksi o development of structural design equations. Design and analysis of retaining walls 3 f crib walls or coffer dams are cells or units to be filled with soil or built up members of pieces of precast concrete or metal and are supported by anchor pieces embedded in the soil for. Earthquake seismic design 7.
Building codes and retaining walls 5. The following parameters influence the design of the retaining wall.