Design of Steel Structures (DSS) SPPU Endsem Question Paper May 2023
All 8 questions from this SPPU endsem paper, as printed. Read them here or open the PDF.
- Subject code
- 301003
- Pattern
- 2019 pattern
- Exam
- Endsem
- Session
- May 2023
- Max. marks
- 70
- Time
- 2½ Hours
- Semester
- I
- Paper code
- [6003]-329
Printed for: T.E. (Civil)
Instructions to the candidates
- Answer Q.1 or Q.2, Q.3 or Q.4, Q.5 or Q.6 and Q.7 or Q.8.
- Neat sketches must be drawn wherever necessary.
- Figures to the right indicate full marks.
- Take f y = 250 and f e = 410 grade of steel.
- Take ultimate stress in bolt, f ub = 400 N/mm 2 .
- Assume suitable data, if necessary.
- Use of electronic pocket calculator, IS : 800-2007 and steel table are allowed.
- Use of cell phone is prohibited in the examination hall.
Questions
Q1
- a)[3]
State and explain in brief type of column bases.
- b)[14]
Check the adequacy of ISHB 450 @ 87.2 kg/m to carry a factored axial load of 850 kN at an eccentricity of 250 mm about major axis. The effective length of column is 3 m. Consider only section strength.
OR- a)
Q2
Q3
- a)[4]
Explain in brief web buckling and web crippling with suitable sketches.
- b)[14]
A simply supported steel joist of 5 m effective span carries a working uniformly distributed load 50 kN/m on entire span and a point load of 70 kN at mid span. The section is laterally supported throughout the span. Design an appropriate section. Apply usual checks for strength along with check for deflection.
OR- a)
Q4
- a)[4]
This part has equations that don’t show as text. Open the PDF to read it.
- b)[14]
A simply supported beam carries a uniformly distributed load of magnitude W kN/m on entire span of 5 m. The compression flange is laterally unsupported throughout the span. Find the intensity of uniformly distributed load the section ISMB 500@ 86.9 kg/m can carry for the beam safely. Both ends of beam are fully restrained against torsion.
- a)
Q5
- [17]
Determine panel point dead load, imposed load and wind load for a truss as shown in Figure 1. Assume design wind pressure as 1170 N/m 2 , use G.I. Sheet and the centre to centre spacing of truss as 3.5 m. Assume self weight of purlin as 20 N/m 2 on plan area.
ORQ6
- [17]
Design a gantry girder supporting an electronically operated crane for following data :
- a)
This part has equations that don’t show as text. Open the PDF to read it.
- b)
- c)
- d)
- e)
- f)
This part has equations that don’t show as text. Open the PDF to read it.
- g)
This part has equations that don’t show as text. Open the PDF to read it.
- h)
This part has equations that don’t show as text. Open the PDF to read it.
Q7
- a)[4]
Explain in brief IS provisions for length and spacing of intermittent weld.
- b)[14]
Design the cross-section of a simply supported welded plate girder with an effective span of 20 m. The girder is subjected to a working uniformly distributed load of 43 kN/m throughout the span, including self-weight. Assume that the compression flange is laterally supported throughout the span. Apply checks for bending and shear.
OR- a)
Q8
- a)[4]
- b)[14]
A simply supported welded plate girder is designed for the span of 24 m. It is subjected to a shear force of 2300 kN and bending moment of 20700 kNm. A section used for plate girder to carry above load is as given below - Flanges - 780 mm wide and 50 mm thick. Web - 16 mm thick and 2600 mm deep. Design intermittent welded connection between flange and web. Also design end bearing stiffener. Assume stiff bearing length as 300 mm near support.