V. AS4100 1998 - Single Angle Section in Tension
To check the tensile capacity of a single angle per AS4100-1998.
Reference
Gorenc,B., R.Tinyou and A.Syam, Steel Designer's Handbook, 8th edition, UNSW Press,
problem 7.2, page 198.
Problem
Select a section for a diagonal member of a truss. Verify its capacity. Use on equal leg angle in Grade 300 steel with one line of M20/S fasteners in one leg. Axial load of 300 kN is applied.
Comparison
| Result Type | Theory | STAAD.Pro | Difference |
|---|---|---|---|
| Applied tensile load (kN) | 300 | 300.3 | 0.1% |
| Tensile capacity, 0.9×Nt (kN) | 492 | 492 | none |
| Ratio | 0.610 | 0.610 | none |
STAAD Input
The file C:\Users\Public\Public Documents\STAAD.Pro CONNECT Edition\Samples\ Verification Models\09 Steel Design\Australia\AS4100 1998 - Single Angle Section in Tension.STD is typically installed with the program.
STAAD SPACE AXIAL TENSILE CAPACITY PER AS4100 1998
*
* REFERENCE : Steel Designer's Handbook, B.Gorenc, R.Tinyou and A.Syam,
* 8th edition, example problem 7.2, page 198
*
* OBJECTIVE : TO DETERMINE THE CAPACITY OF A SINGLE ANGLE IN TENSION
* PER THE AS4100-1998 CODE
*
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 0 0; 2 4 0 0;
MEMBER INCIDENCES
1 1 2;
*
DEFINE MATERIAL START
ISOTROPIC STEEL
E 1.99947e+008
POISSON 0.3
DENSITY 76.8191
ALPHA 6.5e-006
DAMP 0.03
END DEFINE MATERIAL
*
MEMBER PROPERTY AUSTRALIAN
1 TABLE ST A125X125X8
PRINT MEMBER PROPERTY ALL
*
CONSTANTS
MATERIAL STEEL MEMB 1
*
SUPPORTS
1 FIXED
*****************************************
LOAD 1 LOADTYPE DEAD TITLE PERMANENT LOAD
JOINT LOAD
2 FX 99.0
*
LOAD 2 LOADTYPE LIVE TITLE IMPOSED LOAD
JOINT LOAD
2 FX 121
*
LOAD COMBINATION 3 ULS
1 1.2 2 1.5
*
PERFORM ANALYSIS
UNIT MMS NEWTON
*
PARAMETER 1
CODE AUSTRALIAN 1998
*
* KT from AS 4100-1998 Table 7.3.2 case (i)
KT 0.85 MEMB 1
*
* NSF = An/Ag = 1720/1900
NSF 0.905 MEMB 1
***
TRACK 2.0 ALL
CHECK CODE MEMB 1
*
* UTILIZATION RATIO = 300/492 = 0.610
*
FINISH
STAAD Output
* STAAD.Pro CODE CHECKING - ( AS4100-1998 ) V2.3 **************************************************** ***NOTE : BY DEFAULT "AS/NZS 3679.1 300" WILL BE USED FOR ROLLED SECTIONS. |--------------------------------------------------------------------------| | Y PROPERTIES | |************* | IN CM UNIT | | * |=============================| ==| |== ------------ | |MEMBER 1 * | AUSTRALIAN SECTIONS | | | AX=0.1900E+2 | | * | ST A125X125X8 | | | --Z AY=0.6500E+1 | |DESIGN CODE * | | | | AZ=0.6500E+1 | |AS4100 1998 * =============================== ==| |== PY=0.8091E+2 | | * PZ=0.4058E+2 | | * |<---LENGTH (ME= 4.00 --->| RY=0.4931E+1 | |************* RZ=0.2480E+1 | | Iw=0.0000E+0 | | 0.0( KN-METR) | |PARAMETER |�0 �0 �0 �0 �0 �0 �0 �0 �0 �0 �0 FORCE/MOMENT | |IN NEWTON MM |�0 �0 �0 �0 �0 �0 �0 �0 �0 �0 �0 IN KN METRE | |--------------- +�0 �0 �0 �0 �0 �0 �0 �0 �0 �0 �0 -------------| | KL/R-Y= 81.1 |�0 �0 �0 �0 �0 �0 �0 �0 �0 �0 �0 PNC=0.9995E+2| | KL/R-Z= 161.3 +�0 �0 �0 �0 �0 �0 �0 �0 �0 �0 �0 PNT=0.4920E+3| | UNL = 4000.0 |�0 �0 �0 �0 �0 �0 �0 �0 �0 �0 �0 pn =-.3003E+3| | MAIN = 180.0 +�0 �0 �0 �0 �0 �0 �0 �0 �0 �0 �0 MNZ=0.6846E+1| | PHI = 0.90 |�0 �0 �0 �0 �0 �0 �0 �0 �0 �0 �0 mnz=0.0000E+0| | FULT = 440.0 +�0 �0 �0 �0 �0 �0 �0 �0 �0 �0 �0 MNY=0.1828E+2| | FYLD = 320.0 |�0 �0 �0 �0 �0 �0 �0 �0 �0 �0 �0 mny=0.0000E+0| | NSF = 0.90 +---+---+---+---+---+---+---+---+---+---| VZ =0.1123E+3| | SKT = 1.00 0.0 vz =0.0000E+0| | SKL = 1.00 ABSOLUTE MZ ENVELOPE VY =0.1123E+3| | SKR = 1.00 (WITH LOAD NO.) vy =0.0000E+0| | | | Section Type: Noncompact - about Z axis; Noncompact - about Y axis | | | | Parameters used to calculate RATIO | | ---------------------------------- | | Ns=0.5349E+3 Msz=0.9458E+1 Msy=0.2031E+2 Mbz=0.7607E+1 | | Miz=0.0000E+0 Miy=0.0000E+0 Moz=0.0000E+0 | | Nciz=0.1111E+3 Nciy=0.2725E+3 Ncz=0.1111E+3 Ncy=0.2725E+3 | | Vvmy=0.4942E-2 Vvmz=0.4942E-2 | | ALPHA,M= 1.000 ALPHA,B= 1.000 ALPHA,SZ= 0.804 | | | | MAX FORCE/ MOMENT SUMMARY ( KN-METR) | | ------------------------- | | AXIAL SHEAR-Y SHEAR-Z MOMENT-Y MOMENT-Z | | VALUE -300.3 0.0 0.0 0.0 0.0 | | LOCATION 4.0 0.0 0.0 0.0 0.0 | | LOADING 3 0 0 0 0 | |**************************************************************************| |* DESIGN SUMMARY ( KN-METR) *| |* -------------- *| |* RESULT/ CRITICAL COND/ RATIO/ LOADING/ *| |* FX MY MZ LOCATION *| |* ====================================================== *| |* PASS TENSION 0.610 3 *| |* 300.30 T 0.0 0.0 0.00 *| |**************************************************************************| |--------------------------------------------------------------------------| AXIAL TENSILE CAPACITY PER AS4100 1998 -- PAGE NO. 5 *