Beam bridge
Bridge form
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Beam bridges are the simplest structural forms for bridge spans supported by an abutment or pier at each end. No moments are transferred throughout the support, hence their structural type is known as simply supported.
The simplest beam bridge... Wikipedia
Design effort: Low
Falsework required: No unless cast-in-place reinforced concrete is used
Material: Timber, iron, steel, reinforced concrete, prestressed concrete
Span range: Short