VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur – 603 203 DEPARTMENT OF CIVIL ENGINEERING QUESTION BANK II SEMESTER ST7204 –EARTHQUAKE ANLYSIS AND DESIGN OF STRUCTURES M.E STRUCTURAL ENGINEERING Regulation – 2013 Academic Year 2016 – 17 Prepared by Ms.M.SARANYA, Assistant Professor/Civil VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur – 603 203. DEPARTMENT OFCIVIL ENGINEERING QUESTION BANK SUBJECT : ST7204 –EARTHQUAKE ANLYSIS AND DESIGN OF STRUCTURES SEM / YEAR: II/I UNIT I - EARTHQUAKES AND GROUND MOTION Engineering Seismology (Definitions, Introduction to Seismic hazard, Earthquake Phenomenon), Seismotectonics and Seismic Zoning of India, Earthquake Monitoring and Seismic Instrumentation, Characteristics of Strong Earthquake Motion, Estimation of Earthquake Parameters, Microzonation. PART - A Q.No 1. Questions Define seismology BT Level BT-1 Competence Remember 2. 1. List the causes of earthquake. BT-1 Remember 3. 2. Write the major types of plates in engineering seismology. BT-1 Remember BT-1 Remember BT-1 Remember BT-1 Remember BT-2 Understand 4. Describe transform boundaries 5. 3. Enumerate the types of faults 7. List out some disastrous earthquakes occurred in past history in India. Differentiate convergent and divergent boundaries 8. Distinguish between body waves and surface waves BT-2 Understand 9. Compare and contrast focus and epicentre BT-2 Understand 10. Describe about the characteristics of earthquake. 11. Write short notes on elastic rebound theory. BT-2 BT-3 Understand Application 12. Comment on microzonation BT-3 Application 13 Illustrate the factors affecting ground motion. 14.4. Differentiate Mercalli intensity scale and Richter scale BT-3 BT-4 Application Analyse 15. Explain elastic rebound theory BT-4 Analyse 16. Analyse seismotectonics BT-4 Analyse 6. 17.5. Generalize the term soil amplification. BT-5 Evaluate 18.6. Generalize seismogram BT-5 Evaluate 19. Brief isoseismal line BT-6 Create 20. Write a note on Tsunami. BT-6 Create BT-1 Remember BT-1 Remember PART - B 1. i. List out the causes of earthquake and explain it briefly.(7) ii. Name the major plates of the earth.(6) 2. i. Define focus and epicenter of an earthquake. (5) ii. Name the kinds of body waves and explain it with neat sketch.(8) 3. Define Ritcher scale and MMI scale and explain it briefly. BT-1 Remember 4. Describe plates tectonic theory with a neat sketch BT-1 Remember 5. Explain briefly about Elastic rebound theory. BT-2 Understand 6. Define faults? And Show how they are associated with BT-2 Understand BT-2 Understand BT-3 Application BT-3 Application BT-3 Application BT-4 Analyse earthquake 7. 8. i. Explain the types of geological faults.(7) ii. Discuss about the classification of earthquake.(6) Illustrate the principle of seismograph and seismogram with sketch. 9. Classify seismic zoning of India as per IS 1893:2002. 10. How seismic waves are induced? Explain the different types of seismic waves. 11. i. Differentiate magnitude and intensity. (7) ii. How will you measure magnitude and intensity. Explain the methods(6) 12. Explain about seismic instrumentation and monitoring BT-4 Analyse 13. Evaluate the earthquake that has occurred in India in the past BT-5 Evaluate 14. Write in detail about microzonation BT-6 Create BT-6 Create PART - C 1. Write the recent advancement in measurement of earthquake 2. Prepare a case study on any of the major earthquake that has occurred in the past BT-2 Understand 3. Explain the recent zone classification in India BT-4 Analyse 4. Brief about reservoir induced and volcanic earthquakes BT-1 Remember UNIT II - EFFECTS OF EARTHQUAKE ON STRUCTURES Dynamics of Structures (SDOFS/ MDOFS), Response Spectra - Evaluation of Earthquake Forces as per codal provisions - Effect of Earthquake on Different Types of Structures - Lessons Learnt From Past Earthquakes PART - A Q.No 1. Questions State the consequences of vibration in a structure. BT Level BT-1 Competence Remember 2. 1. Define Degrees offreedom and list the types. BT-1 Remember 3. Brief resonance and natural frequency. BT-1 Remember 4. What is fundamental frequency and fundamental mode BT-1 Remember 5. Define the term base shear. BT-1 Remember 6. Define response spectra. BT-1 Remember 7. 2. Describe D-Alembert’s principle. BT-2 Understand 8. 3. Difference between static and dynamic loading. BT-2 Understand 9. Mention the types of damping. BT-2 Understand 10. Explain the term storey drift. BT-2 Understand 11. Examine the steps to be followed for the dynamic analysis of BT-3 Application BT-3 Application structure. 12. A harmonic motion has a time period of 0.2s and amplitude of 0.4cm. Calculate the maximum velocity and acceleration 13. Write note on the lessons learnt from past earthquake. BT-3 Application 14. Analyse horizontal and vertical seismic coefficient. BT-4 Analyse 15. Explain two degrees of freedom system. BT-4 Analyse 16. Discuss about the major damages occur in the RC structures BT-4 Analyse BT-5 Evaluate during earthquake. 17. 1. How will you evaluate the distribution of design base shear along the height of the building. 18. A cantilever beam 3m long supports a mass of 500kg at its upper end. Evaluate the natural period and natural frequency. 19. 2. Assess the equation of motion for an damped two degree of freedom system. 20. 3. Write the characteristic equation for free vibration of undamped system. BT-5 Evaluate BT-6 Create BT-6 Create BT-1 Remember BT-1 Remember BT-1 Remember BT-1 Remember BT-2 Understand PART– B 1. i. State and elaborate D’Alemberts Principle.(7) ii. Describe the solution of equation of motion.(6) 2. Identify the natural frequency and mode of vibration for the system shown. 3. Write the plan configuration problems that affect the performance of RC buildings during earthquake. 4. 5. A four storey reinforced concrete frame building as shown in fig: is situated at Roorkee. The height between the floors is 3 m and total height of building is 12 m. The dead load and live load is lumped at respective floor. The soil below the foundation is assumed to be hard rock. Assume building is intended to be used as a hospital. Determine the total base shear as per IS1893(PART1) : 2002. Distribute the base shear along the height of the building. Explain briefly the effect of earthquake on different types of structures. 6. Describe the mathematical modeling of an SDOF system. 7. Discuss about the vertical irregularities that affect the performance of RC buildings during earthquake. 8. 9. BT-2 Understand BT-2 Understand BT-3 Application BT-3 Application BT-3 Application BT-4 Analyse Calculate the natural frequency and mode shape for the MDOF system. EI = 4.5 x 106 N-m2 for all columns. A vibrating system consists of a mass of 5kg, spring of stiffness 120 N/m and a damper with a damping co-efficient of 5 N-s/m. Calculate a. b. c. d. Damping factor Natural frequency of the system Logarithmic decrement The ratio of two successive amplitude The number of cycles after which the initial amplitude reduces to 25% 10. A three storeyed symmetrical RC school building situtated at Bhuj with following data: Plan dimension : 7 m Storey height : 3.5 m Total weight of beams in a storey : 130 kN Total weight of slab in a storey : 250 kN Total weight of columns in a storey : 50 kN Total weight of walls in a storey : 530 kN Live load : 130 kN Weight of terrace floor : 655 kN The structure is resting on hand rock. Determine the total base shear and lateral loads at each floor level for 5% of damping using seismic coefficient method. 11. A mass of 2 kg is suspended by a spring having a stiffness at 700 N/m. The mass is displaced downward from its equilibrium position by a distance of 0.02 m. Estimate equation of motion, normal frequency, the response of the system and total energy. 12. A damper offers resistance 0.08 N at a constant velocity 0.06m/s. the damper is used with a spring of stiffness equal to 12 N/m. Estimate the damping ratio and frequency of the BT-4 Analyse BT-5 Evaluate BT-6 Create BT-3 Application BT-2 Evaluate BT-3 Application system when the mass of the system is 0.3 kg. 13. 14. Evaluate the natural frequencies and mode of vibration of the given system. Write the step by step procedure for seismic analysis of RC buildings as per IS 1893:2002. PART - C 1. 2. Solve the natural frequency and mode of vibration of the system Predict the natural frequency and mode shapes of a MDF system. The mass and the stiffness matrix of a MDF system is given by 3. Write a step by step procedure to analyze a frame by equivalent static lateral load method. 4. A special reinforced concrete moment resisting frame building with infill panels is situated in Delhi. The height and base dimension is 12m and 24m. Evaluate the design BT-5 Evaluate horizontal seismic coefficient and vertical seismic coefficient for a damping damping of 2 % UNIT III - EARTHQUAKE RESISTANT DESIGN OF MASONRY STRUCTURES Structural Systems - Types of Buildings - Causes of damage - Planning Considerations - Philosophy and Principle of Earthquake Resistant Design - Guidelines for Earthquake Resistant Design - Earthquake Resistant Masonry Buildings - Design consideration – Guidelines. PART - A Competence Define diaphragm discontinuity. BT Level BT-1 2. 1. Write about flexible diaphragm. BT-1 Remember 3. 2. Define rigid diaphragm. BT-1 Remember Q.No 1. Questions Remember 4. What is pounding of buildings? BT-1 Remember 5. Explain the concept of floating column BT-1 Remember 6. 3. What kind of damage occurs in staircase due to earthquake? BT-1 Remember 7. Explain plan and mass irregularity damage. BT-2 Understand 8. Outline the role of lintel bands in masonry buildings BT-2 Understand 9. Brief about Killari earthquake. BT-2 Understand 10. Discuss the reasons for poor performance of masonry BT-2 Understand BT-3 Application BT-3 Application buildings 11. 12. Illustrate the height to thickness correction factors as per IS 1905. Does grouting increase the earthquake resistance capacity? Justify your answer 13. How to calculate the base shear in masonry buildings BT-3 Application 14. Give some data’s about Jabalpur earthquake. BT-4 Analyse 15. Analyse the stress strain curve for brickwork in compression. BT-4 Analyse 16. 4. Compare flexible and rigid diaphragm BT-4 Analyse 17. 5. What will happen if the rigidity modulus affects the masonry structure. Justify. 18. 6. Differentiate structural and non-structural damages in masonry building. Write the formula for modal mass. 19. BT-5 Evaluate BT-5 Evaluate BT-6 Create 20. BT-6 Create Write the principle for the design of infill walls. PART - B 1. Give the reasons for the poor performance of masonry buildings BT-1 Remember BT-1 Remember 3. Classify the different types masonry buildings according to IS 4326:1993 Explain the behavior of unreinforced masonry walls. BT-1 Remember 4 Compare and contrast the behaviour of BT-1 Remember BT-2 BT-2 Understand BT-2 Understand BT-3 Application BT-3 Application BT-3 Application BT-4 Analyse BT-4 Analyse 2. reinforced and unreinforced masonry walls 5. Brief about the behavior of infill walls 6. How to improve the seismic capacity of masonry buildings 7. i. Describe the performance of RC buildings during earthquake?(7) Understand ii. And Explain its damages?(6) 8. Specify the methods for strengthening of masonry buildings (5) and explain in detail with neat sketches(8) 9. Write the effects of earthquake on pre stressed and steels buildings when compared to masonry buildings. Illustrate the design specifications of different types of shear 10. walls 11. Examine the plan configuration problems that affect the performance of masonry buildings during earthquake. 12. Analyze the limitations of equivalent lateral force and response spectrum analysis procedures 13. Explain in detail about seismic design spectrum BT-5 Evaluate 14. Write the various factors in seismic analysis BT-6 Create PART - C 1. Distinguish between rigid and flexible diaphragm with neat sketches 2. Explain effects of earthquake on masonry buildings due to Bhuj earthquake. 3. Study the damages of various Indian earthquake on buildings and give suggestions to improve the performance. 4. Write the design procedure of a shear wall. BT-4 Analyse BT-2 Understand BT-1 Remember BT-6 Create UNIT IV - EARTHQUAKE RESISTANT DESIGN OF RC STRUCTURES Earthquake Resistant Design of R.C.C. Buildings - Material properties - Lateral load analysis – Capacity based Design and detailing – Rigid Frames – Shear walls. PART - A 1. List the different types of irregularities. BT Level BT-1 2. Define ductility. BT-1 Remember 3. List the factors to be considered for design of a tall building. BT-1 Remember 4. Show the failure mechanism of unfilled frame. BT-1 Remember 5. Define modal participation factor. BT-1 Remember 6. Define irregularities. BT-1 Remember 7. Differentiate frame and shear wall. BT-2 Understand 8. How mass irregularities differ from plane irregularities? BT-2 Understand 9. Distinguish between flexure beam model and shear beam BT-2 Understand Understand Application Q.No Questions model. Competence Remember 10. Examine the factors affecting ductility. 11. Vertical distribution of base shear – Illustrate BT-2 BT-3 12. Derive the expression for base shear. BT-3 Application 13. Analyze shear beam model. BT-3 Application 14. Explain assessment of ductility. BT-4 Analyse 15. What do u infer from capacity based design? BT-4 Analyse 16. Formulate the expression for time period as per codal BT-4 Analyse provision IS 1893. 17. Prepare the shear wall to resist lateral load. BT-5 Evaluate 18. Write the design steps of core wall. BT-5 Evaluate 19. Summarize the principle base shear. BT-6 Create 20. Explain assessment of ductility. BT-6 Create BT-1 Remember BT-1 Remember PART - B 1. Describe how core wall resists shear in high rise RC building 2. List the step by step procedure for capacity based design of RC buildings. 3. Describe the construction of floating box. BT-1 Remember 4. Summarize the concept arrived rigid diaphragm action. BT-1 Remember 5. Discuss briefly about the analysis of in filled frames. BT-2 Understand 6. Examine the philosophy of earthquake resistant design of RC buildings Design a rectangular beam for 8m span to support a DL of BT-2 Understand BT-2 Understand BT-3 Application BT-3 Application BT-3 Application BT-4 Analyse 7. 10kN/m and a LL of 12kNm? Inclusive of its own weight. Moment due to earthquake load is 1000kNm and shear force is 80kN. Use M20 grade concrete and Fe415 steel. 8. Briefly write a step by step procedure to analyze a frame by equivalent static lateral load method. 9. A four –storey reinforced concrete frame building is situated at Roorkee. The height between the floors is 3 m and total height of building is 12 m. The dead load and normal live load is lumped at respective floor. The soil below the foundation is assumed to be hard rock. Assume building is intended to be used as a hospital. Determine the total base shear as per IS 1893 (Part 1) :2002 and compare with the earlier IS: 1893 codes. Formulate the base shear along the height of the building. 10. Explain the different types of shear wall with neat sketch 11. Design the exterior column to of a multistorey building with size 400x500mm, axial load from analysis is 601.9 kN and moment from analysis is 176.6 kN-m with ductile detailing. 12. Explain the principles of earthquake resistant design of RC members. 13. Evaluate the best strengthening techniques involved in RC building. 14 Write the design procedure for a flexure member withn an example BT-4 Analyse BT-5 Evaluate BT-6 Create BT-4 Analyse BT-2 Understand BT-1 Remember BT-6 Create PART - C 1. Design a R.C.C building frame of your own as per IS 1893:2002. 2. Examine types of shear wall and what do you prefer for high rise building? Explain it. 3. Write the step by step procedure to find lateral displacement using software. 4. Explain capacity based design and detailing for RC building with example. UNIT V - VIBRATION CONTROL TECHNIQUES Vibration Control - Tuned Mass Dampers – Principles and application, Basic Concept of Seismic Base Isolation – various Systems- Case Studies, Important structures. PART - A Competence 1. 1. What do you mean by base isolation? BT Level BT-1 2. List out need for base isolation BT-1 Remember 3. State the mechanism for base isolation BT-1 Remember 4. Name the parts of a typical isolator BT-1 Remember 5. Why is base isolation effective? BT-1 Remember 6. Define damper Remember 7. Describe the response of base isolation in a structure BT-1 BT-2 Q.No Questions Remember Understand 8. 2. Discuss about tuned mass dampers. BT-2 Understand 9. Explain the use of metallic dampers BT-2 Understand 10. Illustrate the criteria to be met by building for effective base BT-2 Understand BT-3 Application BT-3 Application Application Analyse isolation 11. Sketch the typical base isolator 12. Write about the important structures in which base isolation has to be installed. 13. Show the types of base isolation system 14. Classify the type of dampers BT-3 BT-4 15. Examine viscous fluid dampers BT-4 Analyse 16. Analyse metallic dampers BT-4 Analyse 17. Evaluate the performance of base isolation in India with BT-5 Evaluate 18.3. Generalize the practical application of dampers. BT-5 Evaluate 19. Write about isolation and its effective ness. BT-6 Create 20. Write about friction damper BT-6 Create example. PART-B 1. Describe in detail about the concept of base isolation BT-1 Remember 2. With a neat sketch, Quote the functions of tuned mass damper. BT-1 Remember 3. Identity how viscous fluid dampers resist vibration BT-1 Remember 4. Write the new techniques in aseismic design BT-1 Remember 5. Discuss the elements and types of base isolation system with BT-2 Understand BT-2 Understand neat sketch 6. Describe the response of building to base isolation and Summarize the criteria that should be met for effective base isolation. 7. Comment on seismic dampers BT-2 Understand 8. Examine how vibration control techniques be applied for important structures? Give an example of your own. List out the different types of seismic dampers.Explain each of BT-3 Application BT-3 Application BT-3 Application 9. them. 10. Illustrate the use of dampers and base isolation in various structures 11. Explain the application of base isolation in different countries. 12. Distinguish between metallic dampers and friction dampers 13. Discuss a case study on installation of base isolators in Bhuj hospital, Gujarat. 14. With an example explain how base isolators works. BT-4 Analyse BT-4 Analyse BT-5 Evaluate BT- 6 Create PART - C 1. Demonstrate case study on application of seismic dampers. BT-3 Analyse 2. Illustrate case study on working principle of base isolator . BT-3 Understand 3. Analyse the application of tuned mass damper in a high rise BT-4 Remember BT-2 Create residential building. 4. Describe the construction procedure for base isolation techniques.