Advantages of Composite Beams

Advantages of composite beams are

  • Increased strength for a given cross sectional dimension.
  • The concrete and steel is utilized effectively.
  • Good fire resistance in the case of concrete encased beams.
  • Corrosion protection in encased beams.
  • Significant economic advantages over either pure structural steel or reinforced concrete alternatives.
  • Identical cross sections with different load and moment resistances can be produced by varying steel thickness, the concrete strength and reinforcement. This allows the outer dimensions of a beam to be held constant, thus simplifying the construction and architectural detailing.
  • Concrete encased steel beams are also stronger in resisting impact loads.
  • More economical steel section is used in composite construction than conventional non-composite construction for the same span and loading.
  • Depth and weight of steel beam required is reduced. So, the construction depth also reduces increasing the headroom of the building.
  • Composite beams have higher stiffness, thus it has less deflection that steel beams.
  • Composite beams can cover for large space without the need of any intermediate columns.
  • Composite construction is faster because of using rolled steel and pre-fabricated components than cast-in-situ concrete.
  • Encased steel beam have higher resistance to fire and corrosion.

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