Negative Reinforcement in RC beam
Negative Reinforcement in RC beam
(OP)
I am constructing a 6 span continuous 500mm x 500mm RC beam with a clear span of 3.6m between RC column supports. I noticed that the top bars at the support(negative moment) is only 3- 20mm diameter deformed bars while the bottom bars is 5 20mm diameter. Is it possible to have more bars in the compression side than the tension side of the RC beam? The beam is to be constructed in a place with no history of earthquake.






RE: Negative Reinforcement in RC beam
Also, negative moments can be taken at the face of the column/support instead of the centerline of the support.
The negative moments are also affected by the stiffness of the columns or walls...if they were analyzed together. If this is someone else's design, perhaps you should call them if you are concerned about the reinforcing.
RE: Negative Reinforcement in RC beam
Contact the design engineer for a re-evaluation.
RE: Negative Reinforcement in RC beam
But i suggest there may be something drawing in the drawing
refer to the Structural Engineer.
i do not think that moment distruction is done for this beam.
RE: Negative Reinforcement in RC beam
i meant there is something wrong in the drawing.
and i do not think that moment Redistribution is done for that beam.
RE: Negative Reinforcement in RC beam
Ciao.
RE: Negative Reinforcement in RC beam
RE: Negative Reinforcement in RC beam
RE: Negative Reinforcement in RC beam
RE: Negative Reinforcement in RC beam