Beam bridge

Beams bridge

This footbridge was made from beams and boards obtained from logs from the surrounding forest.
Ancestor	Log bridge
Related	None
Descendant	Box girder bridge, Plate girder bridge, trestle, truss bridge, moon bridge
Carries	Pedestrians, automobiles, trucks, light rail, heavy rail
Span range	Short
Material	Timber, iron, steel, reinforced concrete, prestressed concrete
Movable	No
Design effort	Low
Falsework required	No, unless cast-in place reinforced concrete is used

Beam bridges are some of the simplest kinds of bridges today. They are a direct descendant of the log bridge, now more commonly made from shallow steel 'I' beams, box girders, reinforced concrete, or post-tensioned concrete. It is frequently used in pedestrian bridges and for highway overpasses and flyovers. As is its ancestor, this bridge is in structural terms the simplest of the many bridge types.

Like most bridges that are characterized by how they are supported, beam bridges consist of one horizontal beam with 2 supports usually on either end. BALLS

Decorative beam bridges, commonly built from cedar, pine, and redwood, can span a koi pond or country creek. These free standing bridges are usually built as functional walkways or just for decoration.

Beam bridges are usually poles supporting a beam or board.

BP Pedestrian Bridge is a concealed box girder beam bridge in Millennium Park with sculptural qualities.