00421-
No. ofPrinted Pages 5 IBAR-034I
BACHELOR OF ARCIDTECTURE (BArch.)
Term-End Examination
December, 2015

BAR-034 THEORY OF STRUGTURES -IV
Time hours Maximum Marks: 70
Note: Question no. 1 is compulsory. Attempt any four questions from the remaining. Use of scientific calculator, IS 800 code·and steel table is permitted.

1. Choose the most appropriate answer: Which of the following supports is provided to take care of the effects due to temperature variation? Fixed Support

(ii) Hinged Support

(iii) Roller Support

(iv) Pinned Support Simple supported beam of length is subjected to a UDL intensity per unit length over its whole length. Bending moment at mid-span is wl^2/2
wl^2/8

(iii) wl^2/4
wl
A beam in a building requires reinforcement as compared to an arch for the same span and loading. less

(ii) more

(iii) equal

(iv) None of the above Structure shown in Figure is

<img src='./qimages/12835-1d.jpg'> Determinate

(ii) Unstable

(iii) Indeterminate

(iv) None of the above The effective length of a column that has unsupported length and one end fixed and the other end hinged is given by 0.50 L

(ii) 1.2 L

(iii) 0.65L

(iv) 1.5 L The maximum pitch of bolts for parts in compression is Lesser of250 mm or 16 t

(ii) Lesser of200 mm or 12 t

(iii) Lesser of 200 mm or 16 t

(iv) Lesser of 300 mm or 12 t Member of a rigid frame may be subjected to Shear force

(ii) Axial force

(iii) Bending moment

(iv) All of the above

2. Calculate the indeterminacy of the beam as shown in Figure .

<img src='./qimages/12835-2a.jpg'>

Also discuss the disadvantages of indeterminate structures.

Define distribution factor calculated in moment distribution method. Discuss the factors affecting it.

3. Discuss the properties of mild steel. Explain why it is used in structures.

Define Lap Joint. Show the arrangement of a typical lap joint.

4. Discuss various support conditions of a column. Explain the types of failure of columns.

Discuss various steps to design a built-up column as per IS 800.

5. Discuss the behaviour of three-pinned arch. Explain its advantages.

Define Portal Frame. Discuss the step-by-step procedure to analyse a portal frame using the moment distribution method.

6. Discuss various considerations important for the design of a steel beam.

Explain 'Post and lintel' system. Discuss its applications.

7. Write short notes on any two of the following: Design of typical bolted connection Failure of welding joints Importance of the shape of an arch for a given loading and end conditions