Angle Capacity
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Transcript of Angle Capacity
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5/24/2018 Angle Capacity
1/2
PROJECT : PAGE :
CLIENT : DESIGN BY :
JOB NO. : DATE : REVIEW BY :
INPUT DATA & DESIGN SUMMARY
ANGLE SIZE L8X6X1
STEEL YIELD STRESS Fy= 36 ksi
AXIAL COMPRESSION FORCE P = 10 kips, ASD
STRONG GEOMETRIC AXIS EFFECTIVE LENGTH KLx= 20 ft
WEAK GEOMETRIC AXIS EFFECTIVE LENGTH KL y= 10 ft
STRONG GEOMETRIC AXIS BENDING MOMEN Mrx= 5 ft-kips, ASD
STRONG GEOMETRIC AXIS BENDING UNBRACED LENGTH L bx= 20 ft, (AISC 360-05 F2.2.c)
STRONG DIRECTION SHEAR LOAD, ASD Vstrong= 77 kips
WEAK GEOMETRIC AXIS BENDING MOMENT Mry= 6 ft-kips, ASD
WEAK GEOMETRIC AXIS BENDING UNBRACED LENGTH L by= 10 ftWEAK DIRECTION SHEAR LOAD, ASD Vweak= 60 kips
THE DESIGN IS ADEQUATE.
ANALYSIS
CHECK COMBINED COMPRESSION AND BENDING CAPACITY (AISC 360-05, H1)
0.91 < 1.0 [Satisfactory]
Where Pc= Pn / Wc= 136 / 1.67 = 81.28 kips, (AISC 360-05 Chapter E5)
> Pr [Satisfactory]
Mr,max= 7.78 ft-kips or 0.71 ft-kips ,(major principal axis bending)
Mr,min = 0.71 ft-kips or 7.78 ft-kips ,(minor principal axis bending)
Mc,max= Mn / Wb = 42.24 / 1.67 = 25.29 ft-kips, (smaller equal-leg section used, AISC 360-05 Chapter F10-2)
> Mr,max [Satisfactory]
Mc,min = Mn / Wb = 15.89 / 1.67 = 9.51 ft-kips
> Mr,min [Satisfactory]
CHECK SHEAR CAPACITY (AISC 360-05, G2)
Vn,strong/ Wv= 172.8 / 1.67 = 103.5 kips > Vstrong= 77.0 kips [Satisfactory]
Vn,weak/ Wv= 129.6 / 1.67 = 77.6 kips > Vweak= 60.0 kips [Satisfactory]
Angle Steel Member Capacity Based on AISC 360-05
,max ,min
, ,min
,max ,min
, ,min
8, 0.2
9
, 0.22
r rr r
c c max c c
r rr r
c c max c c
M MP Pfor
P M M P
M MP Pfor
P M M P
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5/24/2018 Angle Capacity
2/2