Reg. No.
B.E. B.Tech. DEGREE EXAMINATION, MAY 2017
Fifth Semester
Civil Engineering
01UCE501 DESIGN ON REINFORCED CEMENT CONCRETE AND MASONRY STRUCTURES
(Regulation 2013)
Duration: Three hours Maximum: 100 Marks
Answer ALL Questions
(Use of M20, Fe415, IS 456:200 and SP 16 design Aids are permitted,
assume data for any other)
PART A (10 x 2 20 Marks)
1. Define limit state method. State the different limit states considered in the design.
2. State the limit state of philosophy.
3. Define the modes of cracking under shear.
4. Enumerate the behavior of concrete with torsional reinforcement.
5. Write the minimum and maximum area of tension reinforcement for beams?
6. List the classification of stair.
7. Write the few types of staircases.
8. Differentiate between uniaxial and biaxial bending.
9. Explain how the permissible stress on brick masonry is calculated.
10. Define slenderness ration of a masonry wall.
PART B x 16 80 Marks)
11. A beam is simply supported over an effective span of 7 m carries a live load of 20 kN/m. Design and draw a reinforcement detailing for the beam. Assume width of section is equal to half the effective depth. (Working stress method)
Question Paper Code: 31151
2
31151
Or Explain briefly about the concept of ultimate load method and limit state method.
12. Discuss briefly about the design requirement for bond and anchorage in RC beam design as per IS code and also write note briefly on serviceability requirements. Or Design and draw reinforcement details of a rectangular beam of size 250 mm x 500 mm. The ultimate values of bending moment, shear force and torsion moment are 40 kNm, 40 kN and 30 kNm respectively.
13. Design a slab for an office building of size 4 m x 6 live load 5 kN/m2, floor finishes 1.5 kN/m2 and edge conditions are two adjacent edges discontinuous. Draw a reinforcement detailing for the slab. Or Design a dog legged stair for a building in which the vertical distance between the floors is 3.6 m. the stair hall inner dimensions are 2.4 m x 5 m. The live load on the stair is 3000 N/m2. Adopt M-20 grade concrete and Fe-415 grade steel.
14. Design a reinforced concrete footing for a rectangular column of section 300 mm by 500 mm supporting an axial factored load of 1500 kN. The safe bearing capacity of the soil is 185 kN/m2. Adopt M-20 grade concrete and Fe-415 HYSD bars. Or Design a combined footing with strap beam for two reinforced concrete column of size 300 mm x 300 mm spaced 4 m centre to centre, and each supporting a service axial load of 500 kN. The safe bearing capacity of soil at site is 150 kN/m2. Draw reinforcement detailing for the footing.
15. Determine the safe axial load per meter length of a solid wall 230 mm thick. The height of the wall is 3.40 m. The wall is continuous at both ends between the cross walls of spacing 6m. M1 mortar and bricks of compressive strength 7.5MPa are used. Or
Design a solid square masonry column of height 2000 mm to carry an axial load of 150 kN. The column is tied at top and bottom. Include the self-weight of the column for the design.