STEEL STRUCTURES DESIGN
6th Diploma Exam/Civil/5130/May 2019
STEEL STRUCTURES DESIGN 6th Exam/Civil/5130/May 2019
SECTION-A
Duration: 3Hrs. M.Marks:75
Note: Use of IS: 800 and Steel Tables are permitted in examination.
SECTION-A
Q1. a) Fill in the blanks. 15×1=15
- According to IS 800:1984, Maximum Permissible tensile stress in Steel Sections is 0.6 × fy.
- In IS 800: 1984, Symbol fy represents minimum yield stress in Steel.
- For 28mm diameter rivet, the diameter of rivet hole will be 28+2=30mm.
- Sectional area of “ISLC 150 @ 141.3 N/m” is 1836 mm².
- For 75° Fusion Angle the Effective throat thickness of 6mm welds is 2 mm.
- Maximum pitch in rivets shall not exceed 30t or 300mm.
- Increase in carbon content in steel cause decrease ductility.
- ΣV = 0, ΣH = 0 and ΣM = 0 are called equations of equilibrium.
- In plate girder Bearing stiffeners are provided at the support.
- Zero bending stress occurs at neutral axis of Beam.
b) State True or False.
- Beam is a flexural Member. (True)
- For Power Driven Shop Rivets (PDSR) allowable shear stress is 100N/mm². (True)
- Minimum Pitch Distance in Rivets shall be two times of rivet (False)
- Brittle Failure is not possible in Welding. (False)
- Strut is a member subjected to an axial Pull. (False)
SECTION-B
Q2. Attempt any five questions. 5×6=30
- Draw neat and labeled sketches of Lap Joint, Single Cover Butt Joint & Double cover Butt Joint with Riveted Connections.
- Calculate minimum numbers of rivets required to connect a 14mm thick steel flat with a 12mm thick gusset plate to support an axial pull of 230kN for shop fabrication. Also Specify Diameter of Rivets.
- Write the steps to design an axially loaded Column.
- What are purlins?
- Differentiate between Clear Span, Effective Span & Total span of a beam with the help of sketches.
- What are disadvantages of welding?
- What are laterally restrained beams? Explain with Sketches ?
- How depth of Masonry wall foundation is decided?
SECTION-C
Q3. Attempt any three questions. 3×10=30
- Design a simply supported beam of span 4.0 m to carry a superimposed load of 55 kN/m inclusive of its self-weight. The beam is laterally restrained throughout its length.(Assume missing Data)
- Write about various components of Roof Trusses (Minimum Ten).
- Design a Single angle discontinue strut of 2.0 m length to carry an axial compressive load of 100 kN. With welded end connection using 10mm gusset plate. (Assume missing Data)
- Design a 2.5m long Single angle section to act as tension member subjected to a tensile load of 160kN. With Shop Riveted (PDSR) Connections at end. Assume thickness of gusset.
- Calculate the efficiency of Joint shown in Figure A. for shop Fabrication.
STEEL STRUCTURES DESIGN 6th Exam/Civil/5130/May 2019
Section a :-STEEL STRUCTURES DESIGN
6th Diploma/Civil/5130/May 2019
According to IS 800:1984, Maximum Permissible tensile stress in Steel Sections is ______× fy.
According to IS 800:1984, Maximum Permissible tensile stress in Steel Sections is 0.6× fy.
In IS 800: 1984, Symbol fy represents ____________ stress in Steel.
In IS 800: 1984, Symbol fy represents minimum yield stress in Steel.
For 28mm diameter rivet, the diameter of rivet hole will be ________
For 28mm diameter rivet, the diameter of rivet hole will be 28+2=30mm.
Sectional area of “ISLC 150 @ 141.3 N/m” is _______ mm²
Sectional area of “ISLC 150 @ 141.3 N/m” is 1836 mm².
For 75° Fusion Angle the Effective throat thickness of 6mm welds is ____ mm.
For 75° Fusion Angle the Effective throat thickness of 6mm welds is 2 mm.
Maximum pitch in rivets shall not exceed _______.
Maximum pitch in rivets shall not exceed 30t or 300mm.
Increase in carbon content in steel cause _________.
Increase in carbon content in steel cause decrease ductility.
ΣV = 0, ΣH = 0 and ΣM = 0 are called ________.
ΣV = 0, ΣH = 0 and ΣM = 0 are called equations of equilibrium.
In plate girder Bearing stiffeners are provided at ________.
In plate girder Bearing stiffeners are provided at the support.
Zero bending stress occurs at _________ of Beam.
Zero bending stress occurs at neutral axis of Beam.
b) State True or False.
(True)
For Power Driven Shop Rivets (PDSR) allowable shear stress is 100N/mm².
(True)
Minimum Pitch Distance in Rivets shall be two times of rivet.
(False)
Brittle Failure is not possible in Welding.
(False)
Strut is a member subjected to an axial Pull.
(False)
STEEL STRUCTURES DESIGN
6th Diploma Exam/Civil/5130/May 2019 Diploma Solved Paper May 2019 .Click Here
Section B :STEEL STRUCTURES DESIGN
6th Diploma /Civil/5130/May 2019
Lap Joint, Single Cover Butt Joint & Double cover Butt Joint with Riveted Connections. Click Here
Calculate minimum numbers of rivets required to connect a 14mm thick steel flat with a 12mm thick gusset plate to support an axial pull of 230kN for shop fabrication. Also Specify Diameter of Rivets.
What are purlins ?
Purlins
Differentiate between Clear Span, Effective Span & Total span of a beam with the help of sketches.
What are disadvantages of welding?
Disadvantages of welding
What are laterally restrained beams? Explain with Sketches ?
beams
How depth of Masonry wall foundation is decided?
STEEL STRUCTURES DESIGN
6th Diploma/Civil/5130/May 2019 Click Here
STEEL STRUCTURES DESIGN
6th Diploma/Civil/5130/May 2019
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Section c STEEL STRUCTURES DESIGN
6th Diploma/Civil/5130/May 2019
Design a simply supported beam of span 4.0 m to carry a superimposed load of 55 kN/m inclusive of its self-weight. The beam is laterally restrained throughout its length.(Assume missing Data)
Write about various components of Roof Trusses.
Various components of Roof Trusses.
Design a Single angle discontinue strut of 2.0 m length to carry an axial compressive load of 100 kN. With welded end connection using 10mm gusset plate
Design a 2.5m long Single angle section to act as tension member subjected to a tensile load of 160kN. With Shop Riveted (PDSR) Connections at end. Assume thickness of gusset.
Calculate the efficiency of Joint shown in Figure A. for shop Fabrication.