Concrete Retaining Wall Expansion Joint Detail

9 1 introduction 9 2 contraction joints 9 3 isolation or expansion joints 9 4 construction joints.

Concrete retaining wall expansion joint detail.

Concrete control joint detail. Greased steel dowels are often cast horizontally into the wall to tie adjacent sections together. These joints may be filled with flexible joint fillers. Backfill and drainage requirements shall be in accordance with.

See clay and concrete masonry banding details tek 5 2a ref. If plans call for expansion joints verify the type of joint intended and execute the details carefully so the joint works pro p e r l y. Expansion joints that allow completely independent movement between adjoining components are sometimes called isolation joints. Typical expansion joint detail backfill and drainage requirements.

Due to the above reasons and many others several shear keys are provided over the cross sections. Construction joints use construction joints when the c o n c r ete placement. Expansion joints should be located at intervals up to 90 feet. Control joints are typically required in exposed above grade concrete masonry walls where net aesthetic shrinkage cracking may detract from the appearance of the wall and to limit moisture or air infiltration.

Since we know the cohesion of the concrete and the surface area of the joint resisting force can be calculated. Concrete expansion joint detail. For cantilevered and gravity walls vertical expansion joint spacing shall be a maximum of 60 feet on. Backfill and drainage.

8 2 types of joints in concrete walls 8 3 contraction joints 8 4 isolation or expansion joints 8 5 construction joints. 1 for more detailed information. Typical control joint detail figure 16. Vertical expansion joints are incorporated into the wall to account for expansion due to temperature changes.

Chapter 10 mass concrete p. Construction joints separate adjacent placements of concrete to make large pours manageable. Especially when the retaining walls is longer it can not be concrete at once and by a single pour. Ment should not pass through wall expansion or isolation joints.

Chapter 9 liquid retaining structures p. Thus we can check the stability. True expansion joints in cast in place walls are not common. Expansion joints also work as contraction joints and may have smooth dowels to maintain the plane of the wall.

Retaining walls and traffic barrier details for reinforced concrete retaining walls are. Figure 12 for timber retaining walls and figure 13 for masonry and concrete retaining walls. Precast concrete cantilever wall expansion joints shall be in accordance with the standard specifications section 6 11 3 3. 1 the bridge office has.