Design of Steel Structures (CE-801) - Important Questions

Differentiate between bearing type bolts/connections and friction grip bolts/connections, including failure mechanisms in bolted connections.

Design the welded joint of an angle tie member ISA 100x75x8 to a 10 mm gusset plate to transfer a factored axial load of 280 kN using 6 mm fillet weld. Show weld layout.

Explain the failure modes/patterns of bolted joints/connections with neat sketches.

Explain why steel is considered superior to cast iron and wrought iron for structural applications.

Determine the design strength of a fillet weld of size 8 mm and effective length 150 mm subjected to a factored load. Assume Fe410 steel and site welding.

Explain block shear failure in tension members with sketches and codal provisions as per IS 800.

Design a double-angle tension member placed back-to-back on either side of gusset to carry a factored axial tensile load of 350 kN, including bolt selection and slenderness check.

Explain what a lug angle is and its purpose in a tension member connection, with neat sketch.

Explain the design considerations for compression members and the effect of slenderness ratio on design strength.

Distinguish between laterally restrained/supported and laterally unrestrained/unsupported beams/sections with diagrams.

Design a laterally supported/restrained simply supported steel I-beam of span 6 m carrying RCC slab, subjected to dead load of 25 kN/m and imposed load of 20 kN/m. Check for bending, shear and deflection.

Design a slab base (base plate) for a steel column ISHB 200 carrying an axial factored load of 1000 kN resting on concrete pedestal of M20 concrete.

Design a laced built-up column with two channel sections placed toe-to-toe to carry an axial factored load of 750 kN over an effective length of 10 m with hinged ends, including single lacing system.

Design an I-section purlin on a sloping roof truss for dead, live and wind loads. Given spacing of trusses 6 m, spacing of purlins 1.5 m and inclination of rafter 30 degrees.

Write short notes on any two: i) Types of roof trusses, ii) Purlins, iii) Bracing systems in industrial buildings, iv) Profile of gantry girder section.