5.what is the purpose of extra bars in beams

Question

Accepted Answer

Extra bars in beams are used to increase the strength and load-bearing capacity of the structure.

Extra bars, also known as reinforcement bars or rebar, are added to beams to enhance their structural integrity.
These bars are typically made of steel and are placed within the concrete to provide additional strength.
The purpose of extra bars is to resist tensile forces and prevent cracking or failure of the beam under heavy loads.
They help distribute the load evenly across the beam and improve its overall load-bearing capacity.
The number and arrangement of extra bars depend on the design requirements and the expected loads on the beam.
For example, in a heavily loaded beam, additional bars may be placed at the bottom to increase its flexural strength.
Extra bars can also be used to reinforce specific areas of the beam where stress concentration is expected.
In earthquake-prone areas, extra bars may be added to beams to improve their resistance against seismic forces.
Overall, the purpose of extra bars in beams is to ensure the structural stability and safety of the construction.

Accepted Answer

The extra bar in beam are strength was decreased and load trasfor the columes

Accepted Answer

To increase tensile strength and avoid negative bending moment.

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