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What does SC stand for in steel structure

Release:     Release date:2019-05-18

SC stands for horizontal bracing in steel structure.


Other symbols for steel structures:


L: Angle steel; GLT: rigid purlin; GZ: steel column; WLT: ridge purlin; QT: ductile iron; ZC: inter-column support; SCS: stainless steel castings; GJ: rigid frame; GJZ: rigid frame column; GXG: rigid tie rod; GJL: rigid frame beam;


YXB: molded metal plate; TL: joist; SQZ: gable column; LT: purlin; XT: stay bar; QL: wall beam; MZ: door post; YC: brace; ML: door beam; T: brace; CG: pole vault; HJ: truss;


FHB: composite board; XG: tie rod; LG: pull tube; QCG: wall brace pipe; QLG: wall pull tube; GXL: stay strip; GZL: straight drawing strip; YG: press bar or round pipe; Gj30-1: portal frame with a span of 30m, numbered no. 1.

Extended information


Steel structure features


1. High material strength, light steel strength and high elastic modulus.


Compared with concrete and wood, the ratio of its density and yield strength is relatively low, so under the same stress condition of steel structure components section small, light weight, easy to transport and installation, suitable for large span, high height, heavy bearing structure.


2, steel toughness, good plasticity, material uniformity, structure reliability is suitable for withstand impact and dynamic load, with good seismic performance. The internal structure of steel is homogeneous, close to isotropic homogenizer.


The actual working performance of steel structure accords with the calculation theory. Therefore, the steel structure has high reliability.


3, steel structure manufacturing installation degree of mechanization of steel structure members to facilitate the factory manufacturing, site assembly. Factory mechanized manufacturing steel structure components finished products of high precision, high production efficiency, site assembly speed, short construction period. Steel structure is the most industrialized structure.


4, steel structure sealing performance is good because the welding structure can be completely sealed, can be made into air tightness, water tightness are good high pressure vessels, large oil pool, pressure pipeline.


5, heat-resistant steel structure does not fire when the temperature was below 150 ℃, the steel properties changed little. Thus the steel structure is suitable for the hot shop, but the structure surface at the thermal radiation of about 150 ℃, to adopt heat insulation board to protect it.


Temperature at 300 ℃ to 400 ℃. The steel strength and elastic modulus were decreased significantly, the temperature about 600 ℃, the steel strength tends to zero. In buildings with special fire protection requirements, the steel structure must be protected by refractory materials to improve the fire resistance grade.


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