Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Summer 8th Sem 2180610 Design Of Steel Structure Previous Question Paper

**No**.: ________

EnrolmentNo.___________

**GUJARAT TECHNOLOGICAL UNIVERSITY**

**BE SEMESTER?VIII- EXAMINATION ?SUMMER 2020**

**Subject Code: 2180610**

**Date:28/10/2020**

**Subject Name: Design of Steel Structure**

**Time:02.30 pm to 05.30 pm**

**Total Marks: 70**

**Instructions:**

**1. Attempt all questions.**

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

4.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

4.

**Use of IS 800:2007,IS:875 and Steel table is permitted.**

**Q.1**

**(a)**Explain effect of wind load on structure.

**03**

**(b)**Discuss various load combination for the design of steel structure.

**04**

**(c)**Find the maximum load inclined at 600 to the horizontal,

**07**

Which the bracket can transmit , if 5 bolts of grade8.8 and 20 mm diameter are

used to connect 10 mm thick plates to the flange of column.

**Q.2 (a)**What are the application of plate girder?

**03**

**(b)**Distinguish between angle purlin and tubular purline.

**04**

**(c)**A beam ISMB 400 is connected to the flange of column ISHB 300. The beam

**07**

is transferring and reacytion of 200kN. (Factored) and factored moment of 30

kN.m. Design suitable framed welded ,connection ,with fillet on both sides and

top and bottom of beam.

**OR**

**(c)**Explain the hinge length and assumptions made in plastic analysis in detail.

**07**

**Q.3 (a)**What are the various types of the stiffners.

**03**

**(b)**Which are the different types of the loads acting on Gnatry girder?

**04**

**(c)**Calculate wind load for the above purlin, if truss is constructed in Jaipur

**07**

having upwind angle 20 .It has 10% permeability . The life ,class ,category,

height and h/w ratio for the truss are 75 years,B, 2,18 m and 1.2 respectively.

Ignore local effect.

**OR**

**Q.3 (a)**Explain effect of earthquake load on structure.

**03**

**(b)**Write various types of truss girder.

**04**

**(c)**Write the design steps of channel/I-section Purlines.

**07**

**Q.4 (a)**What is tension field action?

**03**

**(b)**Enlist different types of connections and explain any one with sketches.

**04**

**(c)**Explain in detail buckling of web plate.

**07**

**OR**

**Q.4 (a)**Enlist various types of imposed loads on structures and describe any one.

**03**

**(b)**List the element of welded plate girder.

**04**

**(c)**Provide a suitable section for following data for Gantry Girder . No need to

**07**

carry out the checks. A simply supported gantry girder to carry two electric

ally overhead crane travelling with following details.

1.Crane capacity = 200 kN

2.Self weight of crane girder =200 kN

3.Wheel spacing =3.5 m

4.Weight of crab = 40 kN

5.Span of crane between rails = 15 m

6.Span of gantry girder = 7.5 m

7. Self weight of rail section= 300 N/m

8.Minimum hook approach =1.2 m

9. Take yield stress of steel =250MPa.

Assume no lateral restraint along the span.

1

**Q.5 (a)**Explain light moment connection.

**03**

**(b)**Define terms: (1) Shape factor (2) collapse load

**04**

**(c)**Design a cross beam for steel foot bridge for the following data:

**07**

Type of truss: warren type,

Span: 18 m ,Width of walk way: 4 m, Pannel length = 3m, Flooring = RCC

slab 120 mm thick. Live Load: 5 kN/m2 .Assume Suitable data if required.

**OR**

**Q.5 (a)**Explain the concept of plastic analysis and design.

**03**

**(b)**State the assumptions made in plastic design.

**04**

**(c)**Determine the collapse load for simply supported beam carrying a

**07**

concentrated load W.

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2

This post was last modified on 04 March 2021