V. AISC 360-05 HSST Slender Flange F.8
Details
From reference (2):
Verify the strength of an ASTM A500 Gr. B HSS8×8×x with a span of 21 ft. The nominal loads are a dead load of 0.125 kip/ft and a live load of 0.375 kip/ft. Limit the live load deflection to L 240 .
Result Type | Reference | STAAD.Pro | Difference | Comments |
---|---|---|---|---|
ϕbMn (ft·k) [LRFD] | 42.5 | 42.5 | none | |
Mn/Ωb (ft·k) [ASD] | 28.3 | 28.3 | none |
STAAD.Pro Input File
The file C:\Users\Public\Public Documents\STAAD.Pro 2023\Samples \Verification Models\09 Steel Design\US\AISC\AISC 360-05 HSST Slender Flange F.8.STD is typically installed with the program.
STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 19-Feb-19
END JOB INFORMATION
INPUT WIDTH 79
UNIT FEET KIP
JOINT COORDINATES
1 0 0 0; 2 21 0 0;
MEMBER INCIDENCES
1 1 2;
DEFINE MATERIAL START
ISOTROPIC STEEL
E 4.176e+06
POISSON 0.3
DENSITY 0.489024
ALPHA 6.5e-06
DAMP 0.03
TYPE STEEL
STRENGTH RY 1.5 RT 1.2
END DEFINE MATERIAL
MEMBER PROPERTY AMERICAN
1 TABLE ST HSST8X8X0.188
CONSTANTS
MATERIAL STEEL ALL
SUPPORTS
1 FIXED BUT MZ
2 FIXED BUT FX MZ
LOAD 1 LOADTYPE None TITLE LOAD CASE 1
MEMBER LOAD
1 UNI GY -0.125
LOAD 2 LOADTYPE None TITLE LOAD CASE 2
MEMBER LOAD
1 UNI GY -0.375
LOAD COMB 3 COMBINATION LOAD CASE 3
1 1.2 2 1.6
LOAD COMB 4 COMBINATION LOAD CASE 4
1 1.0 2 1.0
PERFORM ANALYSIS
LOAD LIST 3
PARAMETER 1
CODE AISC UNIFIED 2005
FU 8352 ALL
FYLD 6624 ALL
FLX 2 ALL
METHOD LRFD
TRACK 2 ALL
CHECK CODE ALL
LOAD LIST 4
PARAMETER 2
CODE AISC UNIFIED 2005
FU 8352 ALL
FYLD 6624 ALL
FLX 2 ALL
METHOD ASD
TRACK 2 ALL
CHECK CODE ALL
FINISH
STAAD.Pro Output
STAAD.PRO CODE CHECKING - (AISC-360-05-LRFD) v3.3a ******************************************** ALL UNITS ARE - KIP FEET (UNLESS OTHERWISE Noted) MEMBER TABLE RESULT/ CRITICAL COND/ RATIO/ LOADING/ FX MY MZ LOCATION ======================================================================= 1 ST HSST8X8X0.188 (AISC SECTIONS) PASS Eq. H1-1b 0.972 3 0.00 0.00 -41.34 10.50 |-----------------------------------------------------------------------| | SLENDERNESS | | Actual Slenderness Ratio : 79.175 L/C : 3 | | Allowable Slenderness Ratio : 300.000 LOC : 10.50 | |-----------------------------------------------------------------------| | STRENGTH CHECKS | | Critical L/C : 3 Ratio : 0.972(PASS) | | Loc : 10.50 Condition : Eq. H1-1b | |-----------------------------------------------------------------------| | DESIGN FORCES | | Fx: 0.000E+00( ) Fy: 0.000E+00 Fz: 0.000E+00 | | Mx: 0.000E+00 My: 0.000E+00 Mz: -4.134E+01 | |-----------------------------------------------------------------------| | SECTION PROPERTIES (UNIT: INCH) | | Azz: 2.602E+00 Ayy: 2.602E+00 Cw: 0.000E+00 | | Szz: 1.360E+01 Syy: 1.360E+01 | | Izz: 5.440E+01 Iyy: 5.440E+01 Ix: 8.450E+01 | |-----------------------------------------------------------------------| | MATERIAL PROPERTIES | | Fyld: 6623.999 Fu: 8351.999 | |-----------------------------------------------------------------------| | Actual Member Length: 21.000 | | Design Parameters | | Kz: 1.00 Ky: 1.00 NSF: 1.00 SLF: 1.00 CSP: 12.00 | |-----------------------------------------------------------------------| | SECTION CLASS UNSTIFFENED / λ λp λr CASE | | STIFFENED | | Compression : Non-Slender 0.00 N/A 0.00 N/A | | Slender 42.98 N/A 35.15 T.B4.1-12 | | Flexure : Slender 42.98 28.12 35.15 T.B4.1-12 | | Compact 42.98 60.76 143.12 T.B4.1-13 | STAAD SPACE -- PAGE NO. 4 STAAD.PRO CODE CHECKING - (AISC-360-05-LRFD) v3.3a ******************************************** ALL UNITS ARE - KIP FEET (UNLESS OTHERWISE Noted) |-----------------------------------------------------------------------| | CHECK FOR AXIAL TENSION | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | Yield -0.00E+00 2.22E+02 0.000 Eq. D2-1 3 0.00 | | Rupture -0.00E+00 2.34E+02 0.000 Eq. D2-2 3 0.00 | |-----------------------------------------------------------------------| | CHECK FOR AXIAL COMPRESSION | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | Maj Buck 0.00E+00 1.35E+02 0.000 Sec. E1 3 0.00 | | Min Buck 0.00E+00 1.35E+02 0.000 Eq. E7-1 3 0.00 | | Intermediate | | Results Eff Area KL/r Fcr Fe Pn | | Maj Buck 3.27E-02 79.18 4.01E+03 6.57E+03 1.50E+02 | | Min Buck 3.27E-02 79.18 4.01E+03 6.57E+03 1.50E+02 | |-----------------------------------------------------------------------| | CHECK FOR SHEAR | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | Local-Z -0.00E+00 6.46E+01 0.000 Eq. G2-1 3 0.00 | | Local-Y 7.88E+00 6.46E+01 0.122 Eq. G2-1 3 0.00 | | Intermediate | | Results Aw Cv Kv h/tw Vn | | Local-Z 1.81E-02 1.00 5.00 42.98 7.18E+01 | | Local-Y 1.81E-02 1.00 5.00 42.98 7.18E+01 | |-----------------------------------------------------------------------| | CHECK FOR TORSION | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | 0.00E+00 4.41E+01 0.000 Eq. H3-1 3 0.00 | | Intermediate Fcr Tn | | 3.97E+03 4.90E+01 | |-----------------------------------------------------------------------| | CHECK FOR BENDING-YIELDING | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | Major 4.13E+01 5.42E+01 0.763 Eq. F7-1 3 10.50 | | Minor 0.00E+00 5.42E+01 0.000 Eq. F7-1 3 0.00 | | Intermediate Mn My | | Major 6.02E+01 0.00E+00 | | Minor 6.02E+01 0.00E+00 | STAAD SPACE -- PAGE NO. 5 STAAD.PRO CODE CHECKING - (AISC-360-05-LRFD) v3.3a ******************************************** ALL UNITS ARE - KIP FEET (UNLESS OTHERWISE Noted) |-----------------------------------------------------------------------| | CHECK FOR BENDING-FLANGE LOCAL BUCKLING | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | Major 4.13E+01 4.25E+01 0.972 Eq. F7-3 3 10.50 | | Minor 0.00E+00 4.25E+01 0.000 Eq. F7-3 3 0.00 | | Intermediate Mn Fcr | | Major 4.73E+01 0.00E+00 | | Minor 4.73E+01 0.00E+00 | |-----------------------------------------------------------------------| | CHECK FOR FLEXURE TENS/COMP INTERACTION | | RATIO CRITERIA L/C LOC | | Flexure Comp 0.972 Eq. H1-1b 3 10.50 | | Flexure Tens 0.972 Eq. H1-1b 3 10.50 | | Intermediate Mcx Mrx Pc | | Mcy Mry Pr | | Flexure Comp 4.25E+01 4.13E+01 1.35E+02 | | 4.25E+01 0.00E+00 0.00E+00 | | Flexure Tens 4.25E+01 4.13E+01 2.22E+02 | | 4.25E+01 0.00E+00 -0.00E+00 | |-----------------------------------------------------------------------| 48. LOAD LIST 4 49. PARAMETER 2 50. CODE AISC UNIFIED 2005 51. FU 8352 ALL 52. FYLD 6624 ALL 53. FLX 2 ALL 54. METHOD ASD 55. TRACK 2 ALL 56. CHECK CODE ALL STEEL DESIGN WARNING: For member# 1 the profile has been selected from HSS Rect/Round (non A1085)/Pipe tables of AISC database. Weld type is considered to be Elect-resist-weld. Thickness is already reduced from the table. Further reductions will not be done. STAAD SPACE -- PAGE NO. 6 STAAD.PRO CODE CHECKING - ( AISC-360-05-ASD) v3.3a ******************************************** ALL UNITS ARE - KIP FEET (UNLESS OTHERWISE Noted) MEMBER TABLE RESULT/ CRITICAL COND/ RATIO/ LOADING/ FX MY MZ LOCATION ======================================================================= 1 ST HSST8X8X0.188 (AISC SECTIONS) PASS Eq. H1-1b 0.974 4 0.00 0.00 -27.56 10.50 |-----------------------------------------------------------------------| | SLENDERNESS | | Actual Slenderness Ratio : 79.175 L/C : 4 | | Allowable Slenderness Ratio : 300.000 LOC : 10.50 | |-----------------------------------------------------------------------| | STRENGTH CHECKS | | Critical L/C : 4 Ratio : 0.974(PASS) | | Loc : 10.50 Condition : Eq. H1-1b | |-----------------------------------------------------------------------| | DESIGN FORCES | | Fx: 0.000E+00( ) Fy: 0.000E+00 Fz: 0.000E+00 | | Mx: 0.000E+00 My: 0.000E+00 Mz: -2.756E+01 | |-----------------------------------------------------------------------| | SECTION PROPERTIES (UNIT: INCH) | | Azz: 2.602E+00 Ayy: 2.602E+00 Cw: 0.000E+00 | | Szz: 1.360E+01 Syy: 1.360E+01 | | Izz: 5.440E+01 Iyy: 5.440E+01 Ix: 8.450E+01 | |-----------------------------------------------------------------------| | MATERIAL PROPERTIES | | Fyld: 6623.999 Fu: 8351.999 | |-----------------------------------------------------------------------| | Actual Member Length: 21.000 | | Design Parameters | | Kz: 1.00 Ky: 1.00 NSF: 1.00 SLF: 1.00 CSP: 12.00 | |-----------------------------------------------------------------------| | SECTION CLASS UNSTIFFENED / λ λp λr CASE | | STIFFENED | | Compression : Non-Slender 0.00 N/A 0.00 N/A | | Slender 42.98 N/A 35.15 T.B4.1-12 | | Flexure : Slender 42.98 28.12 35.15 T.B4.1-12 | | Compact 42.98 60.76 143.12 T.B4.1-13 | STAAD SPACE -- PAGE NO. 7 STAAD.PRO CODE CHECKING - ( AISC-360-05-ASD) v3.3a ******************************************** ALL UNITS ARE - KIP FEET (UNLESS OTHERWISE Noted) |-----------------------------------------------------------------------| | CHECK FOR AXIAL TENSION | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | Yield -0.00E+00 1.48E+02 0.000 Eq. D2-1 4 0.00 | | Rupture -0.00E+00 1.56E+02 0.000 Eq. D2-2 4 0.00 | |-----------------------------------------------------------------------| | CHECK FOR AXIAL COMPRESSION | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | Maj Buck 0.00E+00 8.96E+01 0.000 Sec. E1 4 0.00 | | Min Buck 0.00E+00 8.96E+01 0.000 Eq. E7-1 4 0.00 | | Intermediate | | Results Eff Area KL/r Fcr Fe Pn | | Maj Buck 3.27E-02 79.18 4.01E+03 6.57E+03 1.50E+02 | | Min Buck 3.27E-02 79.18 4.01E+03 6.57E+03 1.50E+02 | |-----------------------------------------------------------------------| | CHECK FOR SHEAR | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | Local-Z -0.00E+00 4.30E+01 0.000 Eq. G2-1 4 0.00 | | Local-Y 5.25E+00 4.30E+01 0.122 Eq. G2-1 4 0.00 | | Intermediate | | Results Aw Cv Kv h/tw Vn | | Local-Z 1.81E-02 1.00 5.00 42.98 7.18E+01 | | Local-Y 1.81E-02 1.00 5.00 42.98 7.18E+01 | |-----------------------------------------------------------------------| | CHECK FOR TORSION | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | 0.00E+00 2.93E+01 0.000 Eq. H3-1 4 0.00 | | Intermediate Fcr Tn | | 3.97E+03 4.90E+01 | |-----------------------------------------------------------------------| | CHECK FOR BENDING-YIELDING | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | Major 2.76E+01 3.60E+01 0.765 Eq. F7-1 4 10.50 | | Minor 0.00E+00 3.60E+01 0.000 Eq. F7-1 4 0.00 | | Intermediate Mn My | | Major 6.02E+01 0.00E+00 | | Minor 6.02E+01 0.00E+00 | STAAD SPACE -- PAGE NO. 8 STAAD.PRO CODE CHECKING - ( AISC-360-05-ASD) v3.3a ******************************************** ALL UNITS ARE - KIP FEET (UNLESS OTHERWISE Noted) |-----------------------------------------------------------------------| | CHECK FOR BENDING-FLANGE LOCAL BUCKLING | | | | FORCE CAPACITY RATIO CRITERIA L/C LOC | | Major 2.76E+01 2.83E+01 0.974 Eq. F7-3 4 10.50 | | Minor 0.00E+00 2.83E+01 0.000 Eq. F7-3 4 0.00 | | Intermediate Mn Fcr | | Major 4.73E+01 0.00E+00 | | Minor 4.73E+01 0.00E+00 | |-----------------------------------------------------------------------| | CHECK FOR FLEXURE TENS/COMP INTERACTION | | RATIO CRITERIA L/C LOC | | Flexure Comp 0.974 Eq. H1-1b 4 10.50 | | Flexure Tens 0.974 Eq. H1-1b 4 10.50 | | Intermediate Mcx Mrx Pc | | Mcy Mry Pr | | Flexure Comp 2.83E+01 2.76E+01 8.96E+01 | | 2.83E+01 0.00E+00 0.00E+00 | | Flexure Tens 2.83E+01 2.76E+01 1.48E+02 | | 2.83E+01 0.00E+00 -0.00E+00 | |-----------------------------------------------------------------------|