Question

CIET 215, Structural Steel Date Homework Assignment #7 - 50 ks Given: D-375 kips: L-11.35 kips mn layout and loadings depicted The column layout and A992 steel (Fy = 50 ksi) 10 LRFD Design 0 = 0.90 18 BRD BE ERR Find: 3210 3150 ka trū-az- Song 3010 2940 Using the AISC Column Design Table economical W-section having the te Design Tables, fue the mos etion having the required strengi. we have sufficient seng 2800 2540 2490 330 170 Do not use W8 or W10 Sections (none have sufficient use Id 2 lys U68688 Weak axis Strong axis

Answer 1

Pu=(1-2x 375) + (1.6 x 1375): 2650 kj Fy 250 kn 420.90 KzLx2 x 35 - 354 Ky Ly= 1x10 e loft Kylya 1x152 15th kyly z 15 ft Fy 250 ki o P4 2 2650k t From AISC 4-1 table Try w 14+257 [:rx 2 1.62 in & & Pn2 2960k) kyly z lexela = 35 22 221.60 ft kyly = 15t kalx controls Use kyly, 21.60 ft and resenter tables W 144283 , 9Pn 2828 k 2650k ok Yuly