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Multispan plate girder bridge deck on concrete piers. Beam bridges are the simplest structural forms for bridge spans supported by an abutment or pier at each end. [1] No moments are transferred throughout the support, hence their structural type is known as simply supported. The simplest beam bridge could be a log (see log bridge), a wood ...
The king post is the central, vertical member of the truss. Crown posts in the nave roof at Old Romney church, Kent, England. A king post (or king-post or kingpost) is a central vertical post used in architectural or bridge designs, working in tension to support a beam below from a truss apex above (whereas a crown post, though visually similar, supports items above from the beam below).
Diagram of double tee beam. A double tee or double-T beam is a load-bearing structure that resembles two T-beams connected to each other side by side. The strong bond of the flange (horizontal section) and the two webs (vertical members, also known as stems) creates a structure that is capable of withstanding high loads while having a long span.
A T-beam (or tee beam), used in construction, is a load-bearing structure of reinforced concrete, wood or metal, with a capital 'T'-shaped cross section. The top of the T-shaped cross section serves as a flange or compression member in resisting compressive stresses. The web (vertical section) of the beam below the compression flange serves to ...
Poteaux-en-terre (posts in ground) is a type of timber framing with the many vertical posts or studs buried in the ground called post in ground or "earthfast" construction. The tops of the posts are joined to a beam and the spaces between are filled in with natural materials called bousillage or pierrotage.
A bridge segment, part of the High Five interchange, in Dallas, Texas. A segmental bridge is a bridge built in short sections (called segments), i.e., one piece at a time, as opposed to traditional methods that build a bridge in very large sections. The bridge is made of concrete that is either cast-in-place (constructed fully in its final ...
A deck is the surface of a bridge. A structural element of its superstructure, it may be constructed of concrete, steel, open grating, or wood. Sometimes the deck is covered by a railroad bed and track, asphalt concrete, or other form of pavement for ease of vehicle crossing. A concrete deck may be an integral part of the bridge structure (T ...
[6] [a] Sometimes a Palladian truss is defined as a compound truss with a queen post and king post truss in the same assembly. [7] The queen post truss and the king post truss may be combined, by using the straining beam of the queen post truss as the tie beam for a king post truss above. [8] Such combinations are known as compound trusses.