Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
BA SEMESTER-V EXAMINATION WINTER 2018
Subject Code:1055004 Date:03/12/2018
Subject Name:Structure-V
Time:10:30 AM TO 12:30 PM Total Marks: 50
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of IS-800 and steel table is permitted.
Q.1

Explain with neat sketch the single and double lacing system.
04

State the advantages of high strength friction grip bolt.
03

Explain the advantages of welding.
03
Q.2

State the Difference between Working stress method and Limit state method.
05

Explain lap and butt joint with sketches.
05
OR

Draw Stress Stain curve for mild steel and explain the important points.
05
Q.3
Design suitable fillet weld to connect a tie plate 75 x 8 mm to a 12 mm thick gusset plate. The plate is subjected to load equal to full strength of the member, Assume shop welding, Fe 410. Weld should be provided at sides as well as at end.
10
OR
Q.3
A member of a steel roof truss consists of two angles ISA 75 x 75 x 6 mm placed back to back on either side of 12 mm thick gusset plate. The member carries an ultimate tensile load of 180 KN. Determine the number of 16 mm diameter 8.8 grade ordinary bolts required for the joint. Assume fu of plate as 410 MPa.
10
Q.4
Design a single angle to carry a factored tensile load of 280 kN assuming single row of M 18 bolts of 4.6 grade and fy 250 mm2.
10
OR
Q.4
Design a simply supported beam of span 5 m carrying working loads of LL=15 kN/m and DL=12 kN/m. Assume that the compression flange of the beam is laterally restrained throughout.
10
Q.5
Design a single lacing system for a column composed of 2 ISMC 250 30.4 Kg/m placed back to back at clear spacing of 180 mm. Axial factored load on column is 1100 KN. Effective length of column is 5.5 m. calculation of Tie plate is not required.
10
OR
Q.5
Design a steel column to carry factored axial load of 1800 kN. The length of column is 3.6 m and fixed at both ends.
10