ST5101-Advanced Concrete Structures- UNIT5 IMPORTANT QUESTIONS
ST5101-Advanced Concrete Structures- UNIT5 IMPORTANT QUESTIONS
syllabus:-
UNIT V DUCTILE DETAILING
Concept of Ductility – Detailing for ductility – Design of beams, columns for ductility - Design of cast-in-situ joints in frames.
PART – A
1. What is meant by ductility?
2. What are the precaution to be taken to avoid spalling of concrete?
3. What are the basic assumptions in earthquake resistant design of structures?
4. Define average cover.
5. Define ductile detailing.
6. Write a short note on the placement of steel in ductile detailing.
7. Define ductility factor.
8. Write short notes on fire resistance of reinforced concrete members.
9. What are the variables affecting the ductility?
10. Draw the ductile detailing of a beam
PART – B
1. A block of 8 storeyed flats has its lower most columns 500 x 600 mm in size. In order to use the ground floor for car parking the lower columns are made free standing. Comment on the considerations to be given for detailing of these free standing columns. Assume fck = 25, fy = 500 and height of free bay is 4 m.
2. Discuss the effect of high temperature on different types of structural members.
3. Discuss the need for the provision of ductility in RC framed structures when subjected to earthquake loads and state the methods of providing ductility in RC framed structures.
4. The size of bottom column of five storeyed building located in Chennai is 300 x 500 mm. the height of the column is 3m. The end moments from the beam are 85 kNm and 65 kNm. Design the column as per IS 13920. The main reinforcement consists of 6 numbers of 20 mm diameter bars.
5. A reinforced concrete slab is 125 mm thick with 25 mm cover to centre of steel. If the positive steel reinforcement is 425 mm2/m determine the approximate moment – curvature diagram. Determine the ductility factor assuming M25 and Fe 415 steel for reinforcements.
6. A circular column is 300 mm in diameter. Find the diameter and spacing of hoops to be used for confinement assuming that the concrete used is M20 and the steel is Fe 415. What will be the lateral reinforcements if the column is rectangular 600 x 500 mm in size?
7. What are the devices used to improve the ductility performance with seismic loading. Also mention the methods used for achieving these objectives as laid in IS-13920.
8. What are the design rules to be applied to concrete members under fire test under ISO834 with respect to the following: i) cover to steel ii) size of members(minimum thickness for a given fire rating) iii) other factors like detailing practice
9. a) Explain the effect of high temperature on steel and concrete.
b) What are the factors that influence fire resistance ratings of reinforced concrete members?
10. What are the main design requirement in ductile shear walls in earthquake resistant design?
PART – A
1. What is meant by ductility?
2. What are the precaution to be taken to avoid spalling of concrete?
3. What are the basic assumptions in earthquake resistant design of structures?
4. Define average cover.
5. Define ductile detailing.
6. Write a short note on the placement of steel in ductile detailing.
7. Define ductility factor.
8. Write short notes on fire resistance of reinforced concrete members.
9. What are the variables affecting the ductility?
10. Draw the ductile detailing of a beam
PART – B
1. A block of 8 storeyed flats has its lower most columns 500 x 600 mm in size. In order to use the ground floor for car parking the lower columns are made free standing. Comment on the considerations to be given for detailing of these free standing columns. Assume fck = 25, fy = 500 and height of free bay is 4 m.
2. Discuss the effect of high temperature on different types of structural members.
3. Discuss the need for the provision of ductility in RC framed structures when subjected to earthquake loads and state the methods of providing ductility in RC framed structures.
4. The size of bottom column of five storeyed building located in Chennai is 300 x 500 mm. the height of the column is 3m. The end moments from the beam are 85 kNm and 65 kNm. Design the column as per IS 13920. The main reinforcement consists of 6 numbers of 20 mm diameter bars.
5. A reinforced concrete slab is 125 mm thick with 25 mm cover to centre of steel. If the positive steel reinforcement is 425 mm2/m determine the approximate moment – curvature diagram. Determine the ductility factor assuming M25 and Fe 415 steel for reinforcements.
6. A circular column is 300 mm in diameter. Find the diameter and spacing of hoops to be used for confinement assuming that the concrete used is M20 and the steel is Fe 415. What will be the lateral reinforcements if the column is rectangular 600 x 500 mm in size?
7. What are the devices used to improve the ductility performance with seismic loading. Also mention the methods used for achieving these objectives as laid in IS-13920.
8. What are the design rules to be applied to concrete members under fire test under ISO834 with respect to the following: i) cover to steel ii) size of members(minimum thickness for a given fire rating) iii) other factors like detailing practice
9. a) Explain the effect of high temperature on steel and concrete.
b) What are the factors that influence fire resistance ratings of reinforced concrete members?
10. What are the main design requirement in ductile shear walls in earthquake resistant design?
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