Precast prestressed concrete beams are widely used in today’s bridge construction industry where speed and ease of erection are of paramount importance. Over the years, the precast prestressed concrete beam spans have increased due to improvements in material properties.
The introduction of new girder shapes, larger prestressing strands, and advances in design methods. There are many shapes and sizes including: i beams, u beams, y beams, my beams, w beams, mye beams, ye beams, t beams, ty beams, tye beams, m beams, um beams and box beams.
