Slab - wall connection
Slab - wall connection
(OP)
When pouring concrete slab against another concrete/precast wall, what is the main purpose of having starter bars protruding from the wall into the slab. Genernally, there will be sufficient rebate (ie. 25mm - 30mm) in the wall to support the slab already.






RE: Slab - wall connection
This is required by Building Code.
RE: Slab - wall connection
RE: Slab - wall connection
Those bars are not to transmit the shear from the slab to the wall. The shear is transmitted by a shear key or a rough surface. The rebars are used to keep the two elements acting together, for shear friction if only a rough surface is used, and to transmit other horizontal forces and moments from the slab to the wall.
AEF