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In many buildings and bridges, it is common to have a concrete slab supported by steel beams. If the steel beams are connected to the concrete slab in such a way that the two act as one unit, the beam is called as composite beam.

Composite beam has the advantage that the concrete in the slab takes all or most of the compression (for which it is best suited), while the steel beam takes all the tension in the overall system.

Introduction to Composite Construction:

  • A steel beam which is made composite by using shear connectors, composite metal decking and concrete is much stronger and stiffer than the base beam alone
  • Composite floor systems are considered by many to be the highest quality type of construction
  • This has become a standard type of construction selected by many architects, engineers, and developers

Advantages of Composite Construction:

  • It is typical to have a reduced structural steel frame cost
  • Weight of the structural steel frame may be decreased which will reduce foundation costs
  • Reduced live load deflections
  • Shallower beams may be used which might reduce building height
  • Increased span lengths are possible
  • Fast completion of spans compared to RCC beams
  
  
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