Negative bending moment generated near the support so the top layer of the beam act as a tension zone and bottom layer will act as a compression zone. While in the positive bending moment generated at the mid of the beam so the top layer of the beam will act as a compression zone and bottom layer will act as a tension zone. The reinforcement always required more in tension zone.
Why staad pro gives more steel on top floor as compare to bottom
Negative bending moment generated near the support so the top layer of the beam act as a tension zone and bottom layer will act as a compression zone. While in the positive bending moment generated at the mid of the beam so the top layer of the beam will act as a compression zone and bottom layer will act as a tension zone. The reinforcement always required more in tension zone.
@@mohammadamirrauf5686 we talking about columns with three floors, why the upper floor columns have more reinforcement than lowest ?
Because in top floor moment distributed to members to less compared to lower members
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sure
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