Concrete Retaining Wall Expansion Joint Detail

8 2 types of joints in concrete walls 8 3 contraction joints 8 4 isolation or expansion joints 8 5 construction joints.

Concrete retaining wall expansion joint detail.

Backfilling against reinforced concrete retaining walls shall not be permitted until the concrete has reached its 28 day strength. Chapter 10 mass concrete p. Vertical expansion joints are incorporated into the wall to account for expansion due to temperature changes. Thus we can check the stability.

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. Due to the above reasons and many others several shear keys are provided over the cross sections. Especially when the retaining walls is longer it can not be concrete at once and by a single pour. Typical control joint detail figure 16.

For cantilevered and gravity walls vertical expansion joint spacing shall be a maximum of 60 feet on. Precast concrete cantilever wall expansion joints shall be in accordance with the standard specifications section 6 11 3 3. Greased steel dowels are often cast horizontally into the wall to tie adjacent sections together. 9 1 introduction 9 2 contraction joints 9 3 isolation or expansion joints 9 4 construction joints.

1 the bridge office has. Typical expansion joint detail backfill and drainage requirements. Since we know the cohesion of the concrete and the surface area of the joint resisting force can be calculated. Construction joints use construction joints when the c o n c r ete placement.

Chapter 9 liquid retaining structures p. Expansion joints should be located at intervals up to 90 feet. Retaining walls and traffic barrier details for reinforced concrete retaining walls are.