G192009 Pages:3

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APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
SEVENTH SEMESTER B.TECH DEGREE EXAMINATION(R&S), DECEMBER 2019

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

(Use of IS 800, IS875, IS883 are permitted. Assume suitable data wherever necessary)
PARTA
Answer any two full questions, each carries 15 marks.
What do you mean by prying forces?
Design a double cover joint between the two plates of width 300 mm, if the thickness of
one plate is 18 mm and the other is 10 mm. The joint has to transfer a working load of 260
KN. The plates are of Fe 410 grade. Use bolt of grade 4.6.
A tie member of a roof truss consisting of an angle section ISA 75 x75x10 of Fe 410
grade, is welded to a 10mm thick gusset plate. Design a weld to transmit a load equal to
full strength of the member. Assume shop welding.
Under what circumstances do we use slot welds and plug welds?
Explain block shear failure.
What is a lug angle?
Design a bridge truss diagonal carrying a pull of 20010 using double angle section. The
centre to centre distance of intersections is 3m. The member is subjected to reversal of

stresses.

PART 13
Answer any two full questions, each carries 15 marks.
Design a built-up column consisting of two channels placed back to back to carry an axial
factored load of 1500 kN. Length of the column is 6m and the column is restrained in
position but not in direction at both ends. Provide single lacing system with bolted
connection.
What are the main purpose of lacings and battens?
Illustrate the different elements of plate girder.
Design a suitable slab base for a column section ISHB 200@ 365.9N/m supporting an

axial load of 500 KN. The base plate is to rest on a concrete pedestal of M20 grade

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Duration: 3 Hours

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