A beam is a flexure member. It may be of steel, wood or any other structural materials. Reinforced concrete beams are nonhomogeneous in that they are made of two entirely different materials. A flexural member should suffer a axial compression force less than Ag fc´/10.Pre-tensioned Prestressed Beams are one of many forms of reinforced concrete beams where tension force is applied before casting to high tensile steel tendons around which the concrete is to be cast.
Advantages of Using Pre-tensioned Prestressed Beams are:
High quality
Shorter project leadtime
Casting of beams and construction work on site are able to progress
simultaneously, reducing overall project leadtime.
Ease of construction
Precasting
of beams are done at factory, hence no scaffolding/props/falsework are required
over rivers or roads.
Cost saving
Expensive falseworks otherwise
required in certain situations are done away; shorter construction duration
also means lower overall
costs.
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