This document contains instructions and questions for an exam on the design of steel structures. It has three sections: Section A contains 10 short answer questions worth 2 marks each. Section B contains 4 long answer questions worth 5 marks each. Section C contains 2 design questions worth 10 marks each. The questions cover topics like specifications for riveted joints, stress calculation for butt welds, ways to support crane girders over columns, types of bearings, impact allowance for foot bridges, Fuller's formula, analysis assumptions for industrial building bents, definitions of aisle and differences between stringers and cross girders. Design questions include sizing brackets, bearings, stringers, riveted connections and design

1. Roll No. ......................
Total No. of Questions : 09] [Total No. of Pages : 03
B. Tech. (Sem. -7th/8th)
DESIGN OF STEEL STRUCTURES -II
SUBJECT CODE: CE -408
Paper ID : [A0627]
(Note: Please fill subject code a~d paper ID on OMR]
Time: 03 Hours
Instruction to Candidates:
1) Section -A is Compulsory.
2) Attempt any Four questions from Section -B.
3) . Attempt any Two questions from Section - C.
Ql)
Maximum Marks: 60
Section -A
(lO'x 2 =20)
a) List specifications for the design of riveted joint.
b) A bracket is connected to the flange of a column by complete
penetration butt weld. How you will calculate equivalent stress?
c) Draw sketches to show ways in which a crane girder can be supported
over a column.
d) Mention different types of bearings used & write tqe purpose of
providing bearings.
e) "No allowance for impact is to made Jor foot bridges". Give your
comments.
f)
g)
WriteFuller's Formula.
. .
For analysis of industrial building bents for columns hinged at base,
what is the assumption normally made.
h)
i)
What is aisle?
.
What is the difference between stringer and cross girder?
j) Draw typical sketch of Framed connection.
M-669/18,J'9j P.T.O.

2. Q2)
. Section -B . 1
(4 x 5 =27Jj ,
Determin~ the maximum load 'P', which can be applied on bracket plate
with 8 mm fillet weld.
p
2CO~
~ ,2. k) V" th"cl:.
h t'0t.kd.: .
Q3) Design a suitable bearing for a plate girder railway bridge of span 3m centre
to centre of bearings. The bridge is designed for metre gauge single track
.. mainline.
Q4) . In a plate girder thro~gh bridge carrying a single broad gauge track, the
cross-girders are spaced at 4m centres. The stringers are spaced at 2m
centres. Design me stringers if the spacing between main girders is 4m centre
to centre.
Q5) Explain the design procedure of eccentric riveted connection for a case
when line of action of load does not lie in the plane of group of rivets, and
the line of rotation does not pass ,through the centre of gravity of group of
rivets.
Q6) A through type highway steel bridge 48 m span, is supported on two
N-girders each consisting of 10 bays of 4.8 m each, the height <?fgirder
being 4.8 m.DL of bridge including self weight of two N-girders is 90 kN/m
and rolling load on the bridge, to be carried by theiwo girders is equivalent
.. to 100 kN/m. Design the top & bottom chords at the fifth panel of the
"'.. !,ridge and diagnal member in the third bay from.left.
'"
..
...
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3. Section -C
. (2 x 10 = 20)
DesignaGantryGirderto beused inan industrialbuilding carrYingan electric
overhead traveling crane for the undermentioned data:
Crane capacity = 240 kN
SWT of crane girder e:((cludingtrolley = 240kN
Selfweight of trolley, electric motor & hook =45 kN
Wheel base = 3 m
Minimum approach of crane hook to gantry girder = 1.1m
C/C distancebetween gantry rails = 16m .
Assume data.suitably, not given.
Q7)
Q8) Design arailway bridge for following data:
Type of bridge = Deck type plate girder bridge.
Span = 16m between centres of bearings.
Gauge - broad, single track, main line.
Distance between centres of plate girders = 2 m.
Q9) Write short notes on (any two) :
(a) SwayBracings.
(b) Rocker Bearings.
(c) Disadvantages of Riveted Connections.
0*0*
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