Because there are more horizontal mortar joints in a wall constructed using half high units there is slightly less concrete web area in the wall overall.
Reinforcing half wall on concrete.
Drill a 3 8 hole through the floor plate with a standard wood bit then switch to a hammer drill with a 3 8 masonry bit to drill at least a couple inches into the concrete.
Where rebar rods join they must overlap and be tied together with tie wire.
The threaded rod method works great when reinforcing a half wall but is hard to do and super time consuming.
Reinforced concrete wall is used in case where beam is not provided and load from the slab is heavy or when the masonry wall thickness is restricted.
Rebar short for reinforcing bar is mild steel rod that comes in various thickness.
The bars must be lapped and positioned in the center of the core.
Rod 1 2 inch or 5 8 inch rod through the wall s top plate and all the way down.
Another way to reinforce a half wall is to use threaded steel rods to anchor it to the floor.
It requires using 1 2 to 5 8 threaded rod from the top wall plate down to blocking in the structural floor below.
This gives some space for the debris that accumulates at the bottom.
Although this theoretically reduces the wall weight in practice the wall weights of walls constructed using half high units are within 1 psf 0 05 kpa of those for full height units see ref.
Rebar is usually manufactured with deformations i e.
Reinforced concrete wall is designed as a compression member.
Using threaded rod to stiffen the half wall.
The reinforcing bars should be as long as possible yet still be able to weave between the horizontal joint reinforcement typically installed at 16 inches on center vertically.
Strength reduced from 136 7 to 114 9 in kips.
Reinforced concrete wall is classified as.
The use of upside down joist hangers is reommended to add tensioning strength to the blocking.
This must remain in place as it is needed to tie the wall together to control shrinkage.
The mesh should be positioned in the top half of the thickness slightly above the middle of the concrete slab.
Strength of reinforced concrete sections amount of rebar a s the project calls for 5 10 and 5 12 are used.