Longitudinal reinforcement on retaining wall footing or foundation
Longitudinal reinforcement on retaining wall footing or foundation
(OP)
All of the examples I have for retaining wall design never show any calc on longitudinal rebars in the footing. My supervisor always tell me to put #5 @ 12 or close to 12" for foundation wall. What do you guys usually do? What do you check usually on longit. rebars?
Never, but never question engineer's judgement






RE: Longitudinal reinforcement on retaining wall footing or foundation
RE: Longitudinal reinforcement on retaining wall footing or foundation
Never, but never question engineer's judgement
RE: Longitudinal reinforcement on retaining wall footing or foundation
RE: Longitudinal reinforcement on retaining wall footing or foundation
Never, but never question engineer's judgement
RE: Longitudinal reinforcement on retaining wall footing or foundation
RE: Longitudinal reinforcement on retaining wall footing or foundation
RE: Longitudinal reinforcement on retaining wall footing or foundation
Never, but never question engineer's judgement
RE: Longitudinal reinforcement on retaining wall footing or foundation
RE: Longitudinal reinforcement on retaining wall footing or foundation
The place where more bars can do some good is in the bottom of the wall, because the wall is restrained by the footing and will tend to crack at about 10 ft centers.
RE: Longitudinal reinforcement on retaining wall footing or foundation
Treating a continuous wall footing as plain concrete for transverse bending, however, is common, if it's not a cantilevered wall. This usually results in a thicker footing, but it's better than having to put 0.0018 x Ag transverse. Also keep in mind that reinforcing, to do the most good, needs to be fully developed. Often, continuous footings are not wide enough to fully develop the transverse bars.
RE: Longitudinal reinforcement on retaining wall footing or foundation
In a cantilevered retaining wall, I didn't object to the use of .18% steel in the longitudinal direction, although providing adequate support bars for the main bars in some cases can require more than this amount. The OP's supervisor who uses #5 @ 12 sounds like me.