Overview::Beam (structure)


Beams::moment    Bending::beams    Cross::loads    Physics::walled    Material::section    Method::under

Overview Historically beams were squared timbers but are also metal, stone, or combinations of wood and metal<ref>"Beam" def. 1. Whitney, William Dwight, and Benjamin E. Smith. The Century dictionary and cyclopedia. vol, 1. New York: Century Co., 1901. 487. Print.</ref> such as a flitch beam. Beams generally carry vertical gravitational forces but can also be used to carry horizontal loads (e.g., loads due to an earthquake or wind or in tension to resist rafter thrust as a tie beam or (usually) compression as a collar beam). The loads carried by a beam are transferred to columns, walls, or girders, which then transfer the force to adjacent structural compression members. In light frame construction joists may rest on beams.

In carpentry a beam is called a plate as in a sill plate or wall plate, beam as in a summer beam or dragon beam.

Beam (structure) sections
Intro   Overview   Classification of beams based on supports  Area moment of inertia   Stress in beams   General shapes  Thin walled beams  See also  References   Further reading   External links  

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