Download AKTU B-Tech 8th Sem 2017-18 NCE 064 Earthquake Resistant Of Design Of Structures Question Paper

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Sub Code: NCE 064

Paper Id: 1818

Roll No.

B. TECH.

(SEM VIII) THEORY EXAMINATION 2017-18

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EARTHQUAKE RESISTANT DESIGN OF STRUCTURES

Time: 3 Hours

Total Marks: 100

Note: Attempt all Sections. If require any missing data; then choose suitably.

SECTION A

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1. Attempt all questions in brief. 2 x 10 = 20
   1. Draw the figure of Mantle.
   2. What is the body wave magnitude?
   3. What is the basic element of Vibrating system?
   4. Write types of Damping.
   5. How is the Tsunami different from a normal sea wave?

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   6. Define MM scale.
   7. What do you understand by Soft Storey Failure?
   8. Define Non-Structural Elements.
   9. What are the most common modes of masonry failure?
   10. What factors affect Ductility?

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SECTION B

Attempt any three of the following: 10 x 3 = 30

2. 1. Differentiate between strike slip fault and dip slip fault.
   2. Determine the natural period, assuming that the beam and spring are massless shown in the figure.
      

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      (Image of Beam with Spring here)
   3. What is the effect of Structural Irregularities? Explain with neat sketches.
   4. What are the advantages and disadvantages of Masonry Construction?
   5. For a circular column of dia=300 mm, Design the confining spiral ties. Assume M20 and Fe415 steel.

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SECTION C

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Attempt any one part of the following: 10 x 1 = 10

3. 1. Write a short note on types of seismic waves along with a neat diagram of each.
   2. Explain Tectonic Plate Theory. Enumerate seven major Tectonic Plates.

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Attempt any one part of the following: 10 x 1 = 10

4. 1. In an experiment of free vibration, it is found that the maximum amplitude has reduced to 0.4 times its value in 3 complete cycles. Determine the damping in the system.
   2. Write short notes on (i) Causes of Earthquake (ii) Characteristics of Earthquake

Attempt any one part of the following: 10 x 1 = 10

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5. 1. Determine the natural frequency of vibration if m1=m2=m=8x10³ kg and K1=K2=10x10⁷ N/m
      
      (Diagram of two masses and springs)
   2. What is a two-degree-of-freedom system? Explain for a two-storey building.

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6. Attempt any one part of the following: 10 x 1 = 10
   1. How do earthquakes damage and cause failure of bearing walls? Show with a neat diagram.
   2. How will you improve the seismic behavior of Masonry Buildings?

7. Attempt any one part of the following: 10 x 1 = 10
   1. Differentiate between In-plane and Out-of-plane failure of Masonry walls.
   2. What do you understand by Mass Irregularity? Also, explain Vertical Geometric Irregularity.

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