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(Solved): A built-up beam section is formed by welding 2\times L8\times 6\times 1 angles to the bottom flange ...
A built-up beam section is formed by welding 2\times L8\times 6\times 1 angles to the bottom flange of W36x210 as shown in Fig. 1.
Determine the following section properties of the built-up cross section:
Cross sectional area, A(in^(2))
The location of the centroids CG-X and CG-Y id of the built up section from the bottom of angle ( this value is given, so you need to check that you get this value)
Moments of inertia ICG-X (in^(4)){:^(4))^(3) ^(()3) w(l(b)/(f)t)=490pcf S(f(t^(2))/(f)t)
W36x210
d=36.7in,A=61.9in^(2)
l_(x)=13200in^(4),l_(y)=411in^(4)
bf=12.2in,tf=1.36in,tw=0.83in
L8x6x1
A=13.1in^(2)
I_(x)=80.9in^(4),l_(y)=38.8in^(4)
Ybar= 2.65in,(x)/(b)ar =1.65in