A tension member fails by which two failure modes (as per IS 800)?
Choose the correct answer
Shear and compression only
Gross section yielding and net section rupture (and block shear at connections)
Bending and torsion
Creep and fatigue only
Correct Answer
B. Gross section yielding and net section rupture (and block shear at connections)
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Tension member design checks: (1) Gross section yielding: Tdg = fy·Ag/γm0 — ductile, preferred mode; (2) Net section rupture: Tdn = 0.9·An·fu/γm1 — brittle, at bolt holes; (3) Block shear at bolt group. The design capacity = min of all three. Net section rupture is often critical for bolted connections.
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