Generic Composite Steel Beam Details

Composite Steel Beam Design

• 4No. Open cores for composite steel beam design

• Generally 16mm Ø Transverse reinforcement

• Generally 19mm Ø 125mm long shop welded shear studs

• Reduced ends required where flange width is less than 191mm

• Square cut units acceptable where flange width is greater than 191mm

• Minimum flange width of steel beam 178 mm (*)

(*) Based on slab length tolerance of +/- 5mm

CORE BUNG

COMPOSITE STEEL BEAM

4No. T16 TRANSVERSE TIE REINFORCEMENT

SHOP WELDED SHEAR STUD

BISON HOLLOWCORE UNIT

Composite Steel Beam Design

• Minimum 150mm effective depth

• Maximum 260mm effective depth

• Shear studs provided at specified centres

• Generally 1.0m width of compression area for internal beams

• Transverse reinforcement for beam / unit interaction – 350mm max centres

• Consider bearing of the units in the temporary case

• Design Guidance Within SCI Publications 287 & 351

• Lateral instability of the steel beams during construction (*)

(*) Specifically where MEWP’s are running on suspended slab

Composite Steel Beam Design

Composite Steel Beam Design Benefits

• Shop applied shear studs – not affected by inclement weather

• Significant tonnage savings when compared to non-composite solution

• Additional tonnage saved with the introduction of Cellular beams

• Top flange can be left un-painted without additional fire protection

• Whole frame can be galvanised without effecting composite design

• 2B Progressive collapse inherently dealt with using composite steel beam

• Enhanced diaphragm action with the interaction of shear studs

• Composite steel beam design can be achieved without structural topping

BISON MANUFACTURING LIMITEDBISON MANUFACTURING LIMITEDBISON MANUFACTURING LIMITEDBISON MANUFACTURING LIMITED

Gresley Park, William Nadin Way

Swadlincote, Derbyshire DE11 0BB

Telephone 01283 817500

Facsimile 01283 220563