Design Strength of Tension Members | Design of Steel Structures

DESIGN OFTENSION MEMBER * The section should be compact and in order to minimize stress concentration, it should be so arranged that as large portion of it as possible is connected to the gusset plate. * Design strength is the lowest of the following: 1. Design strength due to yielding of gross section Tdg .  2. Rupture strength at critical section Tdn 3. The block shear Tdh 1. Design strength due to yielding of gross area: Tdg = 2. Design strength due to rupture of critical section Tdn =     where An = For threaded rods and bolts, An =     3. Design strength due to block shear Tdb =   or Tdb =      , whichever is smaller where Avg and Avn = Minimum gross and net area in shear and Atg and Atn = minimum gross and net area in tension * Design procedure: 1. Find Ag = where Tu = factored tensile force 2. Take A = 25 to 40 % more than Ag . 3. Select the section, design the connection and find the strength. 4. Redesign, if strength is less or too m...