expansion joint

expansion joint
A structural separation between two building elements that allows free movement between the elements without damage to the system.

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  • Expansion joint — Expansion Ex*pan sion, n. [L. expansio: cf. F. expansion.] 1. The act of expanding or spreading out; the condition of being expanded; dilation; enlargement. [1913 Webster] 2. That which is expanded; expanse; extend surface; as, the expansion of a …   The Collaborative International Dictionary of English

  • Expansion joint — For the railway specific expansion joints, see Breather switch. Expansion joint on a bridge An expansion joint or movement joint is an assembly designed to safely absorb the heat induced expansion and contraction of various construction materials …   Wikipedia

  • expansion joint — noun 1. : a coupling (as of steam pipes) designed to permit an endwise movement that compensates for expansion or contraction resulting from temperature changes 2. : a joint or gap (as in concrete work) designed to permit expansion or contraction …   Useful english dictionary

  • expansion joint — a joint between two parts of a structure, machine, etc., permitting expansion, as from heat, without structural damage. [1840 50] * * * …   Universalium

  • expansion joint — noun a joint that makes allowance for thermal expansion of the parts joined without distortion …   English new terms dictionary

  • expansion joint — any device containing one or more bellows used to absorb dimensional changes, such as those caused by thermal expansion or contraction of a pipeline, duct, or vessel …   Mechanics glossary

  • expansion joint — Device in piping designed to allow movement of the pipe caused by the pipe s expansion and contraction …   Dictionary of automotive terms

  • pressure balanced expansion joint — a pressure balanced expansion joint is designed to absorb axial movement and/or lateral deflection while restraining the pressure thrust by means of tie devices interconnecting the flow bellows with an opposed bellows also subjected to line… …   Mechanics glossary

  • hinged expansion joint — a hinged expansion joint contains one bellows and is designed to permit angular rotation in one plane only, by the use of a pair of pins through hinge plates attached to the expansion joint ends. The hinges and hinge pins must be designed to… …   Mechanics glossary

  • internally guided expansion joint — an internally guided expansion joint is designed to provide axial guiding within the expansion joint by incorporating a heavy internal guide sleeve, with or without the use of bearing rings. The use of such expansion joints will assure… …   Mechanics glossary

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