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| CAMBER |
| The amount by which beams are fabricated out of true to partially counteract the effects of movement under load. (Pre-camber). |
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| CANTILEVER |
| Beam, fixed at one end and free to deflect at the other end. |
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| CAPACITY |
| Limit of force or moment which may be applied to a member without causing yielding or rupture. |
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| CASING |
| Material used to surround partially or completely a structural member for fire resistance or decorative purposes. (Concrete casing, spray casing, board casing.) |
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| CASTELLATED |
| Fabrication process for beam and column sections, zig zag flame cut along web, cut sections welded together to produce a section 50% deeper than the original section. (CASTELLA). |
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| CASTING |
| Steel casing shapes produced by pouring molten steel into a mould. |
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| CATWALK |
| See Walkway. |
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| CEMENT GROUT |
| A mixture of Portland cement and water |
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| CEMENT MORTAR |
| A mixture of Portland cement, sand and water. |
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| CENTROID |
| Centre of area. |
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| CHANNEL |
| L shaped hot rolled or cold rolled section (Hot Rolled. channels see BS4:Part 1.) |
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| CHEQUER PLATE |
| Hot rolled flooring plate with non slip embossments on one surface. |
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| CHORD |
| Main member in a framed structure (top chord, bottom chord, boom). |
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| CHS |
| Circular Hollow Section hot finished tube. See BS4848: Part 2. |
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| CODE OF PRACTICE |
| Document issued by British Standards Institution for guidance outlining current practice. |
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| CONTINUOUS CONNECTION |
| A connection which carries bending moments as well as shear and axial forces. |
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| COREFAST |
| A construction system developed by Corus that enables building cores and other building structures to be erected quickly and accurately using Bi-Steel panels. |
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| CLADDING |
| External weatherproof envelope to a building either loadbearing or non-loadbearing. (Brick cladding, curtain walling.) |
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| CLEAT |
| Short length of angle forming part of a connection drilled for fasteners (FITTINGS) |
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| COLD FORMED |
| Section produced by continuous rolling process from thin steel. |
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| COLD ROLLED |
| Section produced by continuous rolling process from thin steel. |
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| COLUMN |
| A vertical member carrying axial compression load and possibly bending moment and shear. |
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| COMPACT SECTION |
| A section which can develop the plastic moment capacity but in which local buckling prevents rotation at constant moment. |
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| COMPONENT |
| Prefabricated member forming part of a framing system. |
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| COMPOSITE CONSTRUCTION |
| A combination of a concrete floor slab and steel beam with a mechanical bond between in order to produce a single member of enhanced strength. |
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| COMPOUND BEAM |
| Beam formed by connecting two or more sections or placed together to form a single beam. (BUILT-UP). |
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| COMPRESSION |
| Axial force tending to shorten the member. |
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| CONCRETE |
| Structural material comprising a mixture of fine aggregate, coarse aggregate, cement and water. |
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| CONNECTION |
| Two or more members fastened together by mechanical means or welding. |
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| CONSTRUCTION |
| General term applied to buildings or site work. |
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| CORNICE |
| Moulded projection at top of a building. (CORNICE STONE). |
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| CONTINUOUS BEAM |
| Beam spanning more than one bay without a break. |
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| CORRUGATED SHEET |
| Roof covering sheet sinusoidal in profile made from galvanised steel sheet. |
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| CORROSION COVER |
| Gradual breakdown of surface of metal by electrolytic action caused by chemical attack. |
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| COVER PLATES |
| Plates placed on the outer sides of the member to form a bolted splice. |
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| CRANE PLATE |
| Plate sealing a joint either load bearing or non-load bearing (splice plate). |
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| CUPOLA |
| Dome shaped roof structure (hemispherical ribbed). |
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| CURTAILMENT |
| Stopping short of strengthening places along a main member (cut-off). |
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| CURTAIN WALLING |
| Proprietary side wall cladding system comprising light non-structural framing and glass/plastic infill panels. |
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| CROSS CENTRES |
| A standard dimension, centre to centre of fasteners in a H, I or J section flange measured normal to and about the centre line of the web. |
