D1.L.1.5 Example
A cantilever beam of length 30 inch is loaded at its free end with 5 kip compressive load and 5 kip lateral load. The beam is assigned with W24X104 steel member and is designed in accordance with ASME NF3000 1974.
The corresponding input of STAAD input editor file is shown as below:
STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 18-Jun-08
END JOB INFORMATION
UNIT INCHES KIP
JOINT COORDINATES
1 0 0 0; 2 30 0 0;
MEMBER INCIDENCES
1 1 2;
DEFINE MATERIAL START
ISOTROPIC STEEL
E 29000
POISSON 0.3
DENSITY 76.8195
ALPHA 1.2e-005
DAMP 0.03
END DEFINE MATERIAL
MEMBER PROPERTY AMERICAN
1 TABLE ST W24X104
CONSTANTS
MATERIAL STEEL ALL
SUPPORTS
1 FIXED
LOAD 1
JOINT LOAD
2 FX -5 FY -5
PERFORM ANALYSIS
PRINT SUPPORT REACTION
PRINT JOINT DISPLACEMENTS
PRINT MEMBER FORCES
PARAMETER 1
CODE NF3000 1974
FYLD 36 ALL
FU 58 ALL
KY 0.9 ALL
KZ 0.9 ALL
NSF 0.85 ALL
CB 0 ALL
TRACK 2 ALL
CHECK CODE ALL
FINISH
The corresponding TRACK 2 output is as follows:
STAAD.PRO CODE CHECKING - ( ASME NF3000-74) v2.0 ******************************************** ALL UNITS ARE - KIP INCH (UNLESS OTHERWISE Noted) MEMBER TABLE RESULT/ CRITICAL COND/ RATIO/ LOADING/ FX MY MZ LOCATION ======================================================================= 1 ST W24X104 (AISC SECTIONS) PASS NF-74-EQN-21 0.032 1 5.00 C 0.00 150.00 0.00 |-----------------------------------------------------------------------------| | SLENDERNESS CHECK: ACTUAL RATIO: 9.30 ALLOWABLE RATIO: 200.00 | | ALLOWABLE STRESSES: (UNIT - KIP INCH) | | AXIAL: 2.07E+01 FCZ: 2.38E+01 FCY: 2.70E+01 FTZ: 2.38E+01 FTY: 2.70E+01 | | SHEAR: 1.44E+01 | | ACTUAL STRESSES: (UNIT - KIP INCH) | | AXIAL: 1.63E-01 FBZ: 5.83E-01 FBY: 0.00E+00 SHEAR: 4.15E-01 | |-----------------------------------------------------------------------------| | SECTION PROPERTIES: (UNIT - INCH) | | AXX: 30.70 AYY: 12.05 AZZ: 12.80 RZZ: 10.05 RYY: 2.90 | | SZZ: 257.26 SYY: 40.47 | |-----------------------------------------------------------------------------| | PARAMETER: (UNIT - KIP INCH) | | KL/R-Z: 2.69 KL/R-Y: 9.30 UNL: 30.0 CMZ: 1.00 CMY: 1.00 | | CB: 1.75 FYLD: 36.00 FU: 58.00 NET SECTION FACTOR: 0.85 | | KS:1.000 KV:1.000 KBK:1.000 | |-----------------------------------------------------------------------------| | CRITICAL LOADS FOR EACH CLAUSE CHECK (UNITS KIP -INCH) | | CLAUSE RATIO LOAD FX VY VZ MZ MY | | TENSION 0.000 0 0.00E+00 - - - - | | COMPRESSION 0.008 1 5.00E+00 - - - - | | COMP&BEND 0.032 1 5.00E+00 - - 1.50E+02 0.00E+00 | | TEN&BEND 0.000 1 5.00E+00 - - 1.50E+02 0.00E+00 | | SHEAR-Y 0.029 1 - 5.00E+00 - - - | | SHEAR-Z 0.000 0 - - 0.00E+00 - - | |-----------------------------------------------------------------------------|