Question

Your response... A beam of Grade 50 steel is adequately braced and has a lateral-torsional buckling modification factor of Cg = 1.0. The max- imum factored moment applied to the com- ponent is My = 229 kip - ft. The lightest suitable W-shape required is W14 x - Previous responses * 1. 48 (4/21/20 1:40 PM) * 2. 30 (4/21/20 1:41 PM)

Answer 1

Giren: ty= 50000 dolina cb= 1 Mu=229+(103*12) ( lb-in) w lux?? According to LRRD method Mus & Mn < 0.9 x 229 x 10 x12 Mus 2473200 (ilb-in) For utilization of full capacity My amp < tu za 12 AD En plashe modulus ty Zx >, Mp 2473200 zn> 500vo In = .49.464 in 3 From W lux 340 74² 54.6 » Zxcal tables &