Reg Non 0000004011219000:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
B.Tech S7 (S) Examination Sept 2020

Course Code: CE401
Course Name: - DESIGN OF STEEL STRUCTURES

(Use of Codes IS 800, IS 875, IS 883. Assume suitable data wherever necessary)

Max. Marks: 100 Duration: 3 Hours
PART A
Answer any two full questions, each carries 15 marks. Marks
1 a) Sketch and briefly explain any three failure patterns of bolted connection. (3)

b) Design ೩ tension member to carry an axial factored load of 500111. Use a double (12)
angle rolled steel section connected (at site) to each side of a gusset plate of

10mm thick using 20mm diameter bolts of grade 4.6.

Ne

a) What is shear lag? How it can be reduced? (5)
b) Determine the strength and efficiency of a bolted lap joint shown in figure. The (10)
bolts are of 20mm diameter, grade 4.6. The plates are of 12mm thick and grade
Fe410.

237 ‏30ت‎
‎ஆ ० 9 i a

All dimensions in mm

3 9) Differentiate between bearing type connection & friction type connection. (5)
b) A tie member consisting of an angle section ISA100x75x8, designed to transfera (10)
factored axial load of 2801, is to be welded to a gusset plate of 10mm thick,
using 6mm fillet weld. Design the weld, if the weld is provided on three sides by
overlapping the angle on the gusset plate, at a shop. Also sketch the connection

showing the weld lengths.

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