V. BS5950 2000 - Pinned Column Using Non-Slender RHS
A 6.0m rectangular hollow section (RHS) column is pin ended about both axes and has no intermediate restraints.
Reference
Steelwork Design Guide to BS 5950-1:2000, Volume 2, Worked Examples, SCI publication P326, Example 11, The Steel Construction Institute.
Comparison
Result Type | Theory | STAAD.Pro | Difference |
---|---|---|---|
Slenderness, λ | 61.4 | 61.424 | none |
Compression capacity, Pc (kN-m) | 2,790 | 2,794.6 | none |
STAAD Input
The file C:\Users\Public\Public Documents\STAAD.Pro 2023\Samples \Verification Models\09 Steel Design\UK\BS5950 2000 - Pinned Column Using Non-Slender RHS.STD is typically installed with the program.
STAAD SPACE
START JOB INFORMATION
JOB NAME Example no. 11
JOB CLIENT The Steel Construction Institute
JOB COMMENT Pinned column using a non-slender RHS.
ENGINEER DATE Jun 2003
END JOB INFORMATION
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 0 0; 2 0 6 0;
MEMBER INCIDENCES
1 1 2;
*************************************
DEFINE MATERIAL START
ISOTROPIC STEEL
E 2.05e+08
POISSON 0.3
DENSITY 76.8195
ALPHA 1.2e-05
DAMP 0.03
END DEFINE MATERIAL
MEMBER PROPERTY BRITISH
1 TABLE ST TUB25025010.0
CONSTANTS
MATERIAL STEEL ALL
SUPPORTS
1 FIXED
*************************************
LOAD 1 AXIAL LOAD
JOINT LOAD
2 FY -2500
PERFORM ANALYSIS PRINT STATICS CHECK
***************************************
PARAMETER 1
CODE BS5950
SGR 1 ALL
TRACK 2 ALL
CHECK CODE ALL
FINISH
STAAD Output
STAAD.Pro CODE CHECKING - (BSI ) *********************** PROGRAM CODE REVISION V2.13_5950-1_2000 STAAD SPACE -- PAGE NO. 5 ALL UNITS ARE - KN METE (UNLESS OTHERWISE Noted) MEMBER TABLE RESULT/ CRITICAL COND/ RATIO/ LOADING/ FX MY MZ LOCATION ======================================================================= 1 ST TUB25025010.0 PASS BS-4.7 (C) 0.895 1 2500.00 C 0.00 0.00 0.00 ======================================================================= MATERIAL DATA Grade of steel = S 355 Modulus of elasticity = 205 kN/mm2 Design Strength (py) = 355 N/mm2 SECTION PROPERTIES (units - cm) Member Length = 600.00 Gross Area = 94.90 Net Area = 94.90 Eff. Area = 94.90 z-z axis y-y axis Moment of inertia : 9055.001 9055.001 Plastic modulus : 851.000 851.000 Elastic modulus : 724.400 724.400 Effective modulus : 851.000 851.000 Shear Area : 47.450 47.450 DESIGN DATA (units - kN,m) BS5950-1/2000 Section Class : SEMI-COMPACT Squash Load : 3368.95 Axial force/Squash load : 0.742 z-z axis y-y axis Compression Capacity : 2794.6 2794.6 Shear Capacity : 1010.7 1010.7 BUCKLING CALCULATIONS (units - kN,m) (axis nomenclature as per design code) x-x axis y-y axis Slenderness : 61.424 61.424 Radius of gyration (cm) : 9.768 9.768 Effective Length : 6.000 6.000 LTB check unnecessary for this section CRITICAL LOADS FOR EACH CLAUSE CHECK (units- kN,m): CLAUSE RATIO LOAD FX VY VZ MZ MY BS-4.7 (C) 0.895 1 2500.0 - - - - Torsion and deflections have not been considered in the design. _________________________