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The Steel Construction Institute, Silwood Park, Ascot, Berkshire, SL5 7QN. Telephone: +44 (0) 1344 636525 Fax: +44 (0) 1344 636570 Email: reception@steel-sci.com. Website: www.steel-sci.org. The European operations of Tata Steel comprise Europe's second largest steel producer. With main steelmaking operations in
The section properties considered are the St. Venant torsional constant, J, the warping torsional constant, Cw, the shear centre location, yO , and the monosymmetry constant, βx . Also included are the torsional constant, C, and the shear constant, CRT, for hollow structural sections (HSS).
For typical steel profiles (IPE, HEA, HEB, HEM, UB, UC, UBP) the geometric properties of the cross-section are defined in the following standard: EN 10365 - Hot rolled steel channels, I and H sections - Dimensions and masses.
This publication provides guidance on the design of steel beams subject to torsion. It owes much to the earlier SCI publication P057 Design of members subject to combined bending and torsion prepared by Nethercot, Salter and Malik and published in 1989.
This International Standard specifies a method for determining the ability of metallic wire of diameter or characteristic dimension from 0,1 mm to 14 mm to undergo plastic deformation during simple torsion in one direction.
The outer rounding radius ro and the inner rounding radius r i are nominal values to be used in calculations and they are specified in the design standards EN 10210-2 §A.3 for hot finished structural hollow sections and EN 10219-2 §B.3 for cold formed structural hollow sections.
Section properties. 3.1 General. All section properties have been accurately calculated and rounded to three significant figures. They have been calculated from the metric dimensions given in the appropriate standards (see Section 1.1). For angles, BS EN 10056-1 assumes that the toe radius equals half the root radius.
