EARTHQUAKE RESISTANT DESIGN OF STRUCTURES
CE 76501
Course Objectives:
To understand the nature of earthquakes, behavior of structures under the ground motion, and learns the analysis and design of structures subjected to earthquake ground motions.

  1. Seismological Aspects
    (4 hours)
    1. Causes of earthquakes
    2. Theory of plate tectonics
    3. Faults and fault mechanism
    4. Seismic waves
    5. Measures of earthquake
    6. Seismic hazards
    7. Types of vibration
    8. Response of structures to vibration
  2. Earthquake Ground Motion
    (10 hours)
    1. Attenuation Laws
    2. Ground motion parameters
    3. Local site effects
    4. Soil amplification
    5. Duhamel Integral for SDOF for earthquake ground motion
    6. Liquefaction effect
    7. Response Spectrums of Earthquakes
    8. Seismic zoning
    9. Seismic hazard analysis
    10. Review of random variables and probability theory
    11. Probability distribution functions
    12. Conditional probability and Baye's theorem
    13. Deterministic seismic hazard analysis (DSHA)
    14. Probabilistic seismic hazard analysis (PSHA)
    15. Seismic hazard curve and return period
  3. Linear Dynamic Analysis of Structures
    (8 hours)
    1. Response of SDOF system to support movement/earthquake ground motion
    2. Vibration frequencies and mode shapes of MDOF system
    3. Mode superposition method
    4. Mode participation factors
    5. Effective modal mass
    6. Response spectrum analysis of MDOF system
    7. Pseudo Static Force in Each Mode of Vibration due to Earthquake
    8. Maximum responses due to effects of all modes
  4. Lateral Load Resisting Systems for Buildings
    (10 hours)
    1. Different structural systems for lateral loads
    2. Floor diaphragms
    3. Lateral load distribution with rigid floor diaphragms
    4. Moment resisting frames
    5. Lateral load distribution in frame buildings
    6. Shear walls
    7. Shear wall with openings
    8. Frame-shear wall dual system
    9. Building configuration implications
  5. Methods of Analysis for Earthquake Resistant Design
    (7 hours)
    1. Principles of earthquake resistant design
    2. Equivalent lateral load procedure
    3. Dynamic analysis procedure
    4. Drift evaluation and verification
    5. Diaphragm effect
    6. Torsional response
    7. Other major code provisions
  6. Design of Structures for Earthquakes
    (6 hours)
    1. Plastic design of structures for earthquakes
    2. Ductility and energy absorption in buildings
    3. Reinforced concrete for earthquake resistance
    4. Confinement of concrete for ductility
    5. Ductile detailing of reinforced concrete structures
    6. Effect of infill masonry walls on frames
    7. Problems of soft and weak stories
    8. Capacity design procedures
    9. Behavior of masonry buildings during earthquakes
    10. Failure mechanisms of masonry walls
    11. Strength of masonry in shear and flexure
    12. Concepts for earthquake resistant masonry buildings

Tutorial:
There shall be related tutorial exercised in class and given as regular homework exercises.
Practical:
The students shall work on a course project on earthquake resistant design of structures on agreement with the course coordinator. Generally the course project work will base on the prevalent national or international seismic codes. The report on the individual course project shall be submitted at the end of the semester, and will be scored based on the quality of the project report.
References:

  1. Newmark, N. M., and Rosenblueth, E., 'Fundamentals of Earthquake Engineering", Prentice.Hall, lnc. Englewood Cliffs, N. J. 2. Kramer, S. 1., 'Geotechnical Earthquake Engineering", Prentice - Hall.
  2. Dowrick D., "Earthquake Resistant Design and Risk Reduction', John Wiley & Sons.
  3. Chopra A. K., "Dynamics of Structures: Theory and Applications to Earthquake Engineering", Prentice Hall.
  4. Clough R. W., Penzien J, "Dynamics of Structures", McGraw Hill.

Evaluation Scheme:
The questions will cover all the chapters in the syllabus. The evaluation scheme will be as indicated in the table below:

Chapter

Hours

Marks Distribution*

1

4

8

2

10

16

3

8

16

4

10

16

5

7

14

6

6

10

Total

45

80

*There could be minor deviation in mark distribution.

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