Indira Gandhi National Open University (IGNOU) 2010 B.Arch Architecture BAR-004 : Theory of Structures - I / - Question Paper
Hi Frnds...
Kindly obtain the attachment of BAR-004 : Theory of Structures - I / June 2010
Thanks and Regards,
Silamba Kumar S
No. of Printed Pages : 3 BAR-004
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O BAR-004 : THEORY OF STRUCTURES - I
Maximum Marks : 70
Time : 3 hours
Note : Question No. 1 is compulsory. Answer any four questions from the remaining questions.
1. Choose the most appropriate answer from the
options given in questions (a) to (g). 7x2=14
(a) Due to wind loads, a building may :
(i) slide
(ii) overturn
(iii) overturn as well as slide . (iv) no effect
(b) Young's modulus is given as :
(i) lateral stress/lateral strain
(ii) lateral stress/longitudinal strain
(iii) longitudinal stress/longitudinal strain.
(iv) longitudinal stress/lateral strain
(c) Out of the following materials which one is the ductile material ?
Brick, stone, steel, Glass
(i) steel (ii) brick
(iii) glass (iv) stone
(d) The number of reactions at a fixed support in a plane structure are :
(i) 4 (ii) 6
(iii) 2 (iv) 3
(e) In a pin jointed truss, forces are applied :
(i) at the joints
(ii) at the middle of members
(iii) at the quarter span of a member
(iv) at joints as well as at the middle of the members
(f) A structure should be :
(i) stable (ii) safe
(iii) economical (iv) all of the above
(g) Out of the following, which one is a time dependent phenomenon ?
(i) elastic deformation
(ii) creep deformation
(iii) temperature strain
(iv) none of the above
2. (a) Explain how a fixed support is different
from a hinged support ?
(b) What do you understand by yield point ? Explain with the help of stress-strain curve of mild steel.
3. (a) What do you understand by Dead Loads
and live loads ? Explain with examples.
(b) What are the effects of temperature variations on materials used in buildings ? Explain taking example of a truss with hinged supports on both ends.
(a) What are various functions of any structural frame work ? Describe with the help of neat sketches.
(b) Why analysis of forces is important for a structural framework ? Discuss it with reference to a communication tower.
(a) What do you'understand by 'factor of safety' ? Describe the factors affecting it.
(b) What do you understand by stiffness ? How is it related to strength ?
(a) Explain the likely effects of wind forces on a high rise building. How can such a building be made safer against wind ?
(b) What do you understand by 'design of structures' ? What considerations are important for it ? Discuss briefly.
Write short note on any two of the following : 2x7
(a) Forces of nature
(b) Stability of structures
(c) Types of stresses
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