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"TORSION9" --- SIMPLIFIED TORSION ANALYSIS FOR STEEL BEAMS

Program Description

"TORSION9" is a spreadsheet program written in MS-Excel for the purpose of simplified analsis and code

chec!ing of steel eams su#ected to torsional loading$ Specificall% six &'( different eam and loading

configurations can e anal)ed * code chec!ed per the +IS, 9th Edition +llowale Stress esign &+S( Manual$

.oth actual and allowale stresses are computed% with the f inal result eing a computed "stress ratio" of actual

stress*allowale stress$ /inall% the total angle of twist resulting from the torsional loading is determined$

This program is a wor!oo! consisting of se0en &1( wor!sheets% descried as follows2

!ors#eet Name Description

oc This documentation sheet

,antile0er - Ecc$ ,onc$ 3oad ,antile0er .eam with Eccentr ic ,oncentrated 3oad at /ree End

Simple Span - Ecc$ ,onc$ 3oad Simple Span .eam with Eccentric ,oncentrated 3oad +pplied at Midspan

,ont$ Span - Ecc$ ,onc$ 3oad ,ontinuous .eam with Eccentric ,oncentrated 3oad +pplied at +ll Midspans

,antile0er - Ecc$ 4nif$ 3oad ,antile0er .eam with Eccentric 4niforml istriuted 3oad

Simple Span - Ecc$ 4nif$ 3oad Simple Span .eam with Eccentric 4niforml istriuted 3oad

,ont$ Span - Ecc$ 4nif$ 3oad ,ontinuous .eam with Eccentric 4niforml istriuted 3oad on +ll Spans

Program Ass$mptions an% Limitations

5$ The simplified torsion analsis used is this program is ased on the following reference2

  4SS Steel esign Manual &5965(% ,hapter 12 Torsion &/igures 1$9 7 1$58% pages 51-5'9(%

2 R$3$ .roc!enrough 7 .$:$ ;ohnston

? shapes$

@$ This program uses the dataase of memer dimensions and section properties from the "+IS, Shapes

ataase"% Aersion @$8 &

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