Download AKTU B-Tech 7th Sem 2015-2016 ECE 701 Design Of Steel Structure Question Paper

Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 7th Semester (Seventh Semester) 2015-2016 ECE 701 Design Of Steel Structure Question Paper

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Printed Pages: 4 30] E(TE-701
(Following Paper ID and Roll No. to be ?lled in your
Answer Book)
RollNU-llllllll ll
B.Tech.
(SEM. VII) THEORY EXAMINATION, 2015-16
E
DESIGN OF STEEL STRUCTURES 8.
c)
[Time:3 hours] [MaximumMarksz 100 E
:
Section-A g
Q l. Attempt all parts. Write answer ut'each part in short. :5
(2 x 1 0:20)
(a) (i) The most suitable section for the member
subjected to torsional forces is ............ E
(ii) The guage length of the steel ofequal t0 ........ 8
(b) An electric pole 01?heightS.0 m is ?xed at bottom. 2
It carries a wire at top and free to move sideways. 'E
The e??ective length ofpole is ........... 3
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(c) (i) The design wind speed for any site is Ver S?
k 1 k2k3, the factor k l is ..............
(ii) In a roof truss top chord members are also
known as ...............
(d) (i) The design wind speed is lOm/s. The desing
wind pressure will be equal to ..........
(1) r-z(_?ta-701
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(ii) In ?llet wleding, if the angle between the fusion
face is 10l? the value of'k' is ........
(e) Ultimate tensile strengh for Fe 4 l 0 is
(lit Write the interaction equation for checking the
bolts for combined shear and tension.
(1) Draw stress 51min curve for mild steel.
(g) List assumptiions made in design ol'heuring bolts.
(h) The yield strcngh for mild steel specimen was
found to be 250 N/mmz. 'l?aking factor 01?sal?cty ol'
3. ?nd out the working stress.
(i) W hat is a base plate and why is it required.
0) Neatly sketch the lblluwing welded connectiuns:
(a) Butt weld (single V. Double V) (b) Fillet weld.
Section-B
Note: Attempt any ?ve questions from this section? X6430
State and explain the classi?cation ol?stcel sections as
per lS:800 (2007)?
What is lug angle? Illustrate with sketch. Why lug angles
are used?
Calculate the net area for a member as shown in Figure
Explain in briel?various types ut?loads to he considered
in the design of steel structure.
(2) li(_?l?-70|
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()6. Determine the design axial load capacity of the column
lSHB 300 @3 577 N/m if the length of column is 3m and
its both ends are pinned.
Q7. A lapjoint between two plates ufsize (250A 16) mm and
(25()><10)mm thick is to transmit the force. Use E250
grade for plates.
QS. What are Plate Girders? Discuss thicr utility as a ?exual
member.
Section-C
Note: Attempt any two questions from this section.(5>< 10=30)
0?). Two plates 12mm and 20mm thick arc to be connected
by a double cover huttjoint. Design thcjoint to transfer
a factored load ol?500 kN using M20 and /or M1641:
grade bolts. Draw adequate scaled section and plan view:
with dimensioning.
QlO. Dcsing a suitable longitudinal ?llet weld to connect
lZOXXmm plate to 150x10mm plate to transmit a pull
equal to the full strength ofsmall plate. Assume weldinj
ms to he made in the ?eld.
01!. Design a built up tension member to carry a factored
force of 340kN. Use 20mm diamtcr blackholts and
gusset plate of 8mm thick. '
012. Design a single angle strut connected to thc gusset plate
(3) P.T.O.
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to carry a factored load of 200kN. Thc ccntcr to center
length of the strut between intersections is 3m. It is
connected by 2 bolts on each side.
Q13. Design a laced column with two channels connected back
to hack of lcngth 10m. carries an axial factored load 0|?
1 350kN. The column may be assumcd tu haw: restrained
in position and direction both at each end.
014. Determine the design bending strength ol?lSl .B 35014!
486 N.m considering the beam to he lateral l}
unsupported. The design shear force V is less than the
design shear strength. The unsupported length ul'hemn
is 3.0m. Assume steel ofgrade |~?c 410.
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Q] 5. Design a simply supported laterally restrained hcam ul?
span Sm swith a factored udl over the cntirc span of
g. ZORN/m. Assume 50% each of dead and live lmid
g contribution. Take E250 grade uf 91cc].
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{:3 Figure
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