1) Select the lightest section to support a axial load (DL=700
kips y LL= 300 kips). The
element is braced, so LX= 22 ft and LY= 12 ft. The end support
conditions are:
a) (Fixed/pinned) and it is specified to use A572 gr. 60. (verify
slenderness and
local buckling)
b) (Fixed/Fixed) and you must use A-36
Please select the reinforcement spacing for the entire span of a
simply supported beam on a 22 ft span. Use the detailed method to
calculate Vc. Do not use a shear envelope diagram use the regular
shear force diagram. Use b = 16 in., d = 27 in., the main bending
reinforcement consists of 4 #9 bars. The unfactored dead and live
loads are 2.6 Kip/ft and 2.5 kip/ft, respectively, f’c = 4500 psi,
and fy = 60,000 psi. Use...
(1) Select the lightest, rectangular Douglas fir section for the
cantilever beam of15- ft span that will carry a uniform load of 450
lb/ft. [Hint: V max = wL; Mmax = wL2/2]
W shape column must support a axial load (DL=500 kips y LL=
300 kips). The element is 30 ft length and braced in the y
direction at 14 ft from the column base. The end support conditions
are (fixed/pinned). Justify the material’s selection. verify
slenderness and local buckling and Select the lightest
section
Select a lightest American Standard Channel that will
safely support a tensile dead load of R/2.5 kN and a tensile live
load of R/2.0 kN. The member is 5m long and is i to have one hole
for an 18 mm bolt through each flange. Use U=0.85, A36 the AISC
Specification.
take R=1618
Select a lightest American Standard Channel that will safely
support a tensile dead load of R/2.5 kN and a tensile live load of
R/2.0 kN. The member is 5m long and is i to have one hole for an 18
mm bolt through each flange. Use U=0.85, A36 the AISC
Specification.
take R=1266
Select the lightest W shape to support a uniformly distributed
load of 1600 lb/ft ona simple span of 48 ft. Deflection is not to
exceed span/240. Assume a yield stress of 50 ksi. Allowable bending
stress of 22,000 psi.
Select the lightest W section to support a uniform distributed
load WD=0.5 kip/ft,
W=1.4 kip/ft in addition to the section self
weight. The element will be simple
supported with a span of 24 ft. Use A36 (Deflection does not
require to be verified).