Building  Owners  and  Managers  Association  International

Building Owners and Managers Association International

PRESTRESSED CONCRETE

A method for overcoming concrete's natural weakness in tension.  Prestressing can be used to produce beams or slabs with a longer span than is practical with ordinary reinforced concrete.  Prestressing tendons (generally steel bars or strands) are used to provide a clamping load that produces a compressive stress that offsets the tensile stress that the concrete member would otherwise experience due to a bending load. 

Prestressing can be accomplished in two ways:  pretensioned or post-tensioned concrete.