Question

2)   Plate 1, an ASTM A572 Gr. 50 rectangular plate with dimensions 1"X1200 mmX200 mm, connects the vertical brace to the lower gusset plate. Use LRFD method and kg

a)   Determine Plate 1's design strength, , for the gross section yielding limit state in kg

b)   Determine Plate 1's design strength, , for the net section rupture/fracture limit state in kg

c)   Determine Plate 1's design strength, , for the block shear limit state in kg

d)   Which limit state governs and what is the design strength in kg of Plate 1?

Image transcriptions

Platel VERTICAL BRACE (1-3/4 0 ROD, ASTM F1554 GR.55) W 500 STEEL COLUMN, SC-01 50-X &gt; weld 1-72 0 ASTM A-325 BOLTS PL 1&quot;X1200X200 TOTAL=4 150 4 5 38.17 548.8 MINIMUM 206 + 1200 W.P LOWER GUSSET PLATE, PL 1- NOTA: FOR CASES IN WHICH 1-12 0 ASTM THERE IS INTERFERENCE A-325 BOLTS VERTICAL BRACE (1-3/4 0 BETWEEN THE GUSSET PLATE TOTAL=4 ROD, ASTM F1554 GR.55) AND BASE PLATE STIFFENERS LOWER GUSSET PLATE, PL 1&quot; 172.5 USE THE GUSSET PLATE MINIMUM L PL 1&quot;X1200X200 75 150- 150- 0-75 100 500- SECTION W-W SCALE 1:10 [mm] CONNECTION TO BASE PLATE 14&quot;0VERTICAL BRACE CONNECTIONS SCALE 1:10 [mm]