0001CE6122052001
Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
B.Tech S8 (Hons) Exam May 2020

01CE6122 ANALYSIS AND DESIGN OF SUBSTRUCTURES

Answer any two full questions from each part
Limit answers to the required points.
Assume any missing data suitably.

Use of all TS 2911 codes , IS 456, SP 16 and Brom’s Chart are permitted
Max. Marks: 60 Duration: 3 hours
PART A
1. a. Discuss the features and working of a cantilever footing with the aid of a (4)

suitable sketch. At what conditions such foundation is preferred.

b. A rectangular combined footing is to be designed for an arrangement of two (5)
400 mm square columns carrying service loads of 400 kN and 800 kN. The
clear distance of lighter column from the boundary is 0.3 m. The center to
center distance between the columns is limited to 1.8 m. Proportion the

footing if the allowable SBC of soil is 150 kN/m?.

2. a. Proportion and design a reinforced concrete isolated footing for a circular (9)
column of size 350 mm transferring an axial load of 1000 kN ೩! service state.
The SBC of the soil is 170 kN/m*. M20 grade concrete and Fe 415 grade steel
are used for the footing. Do necessary checks.
3. a. Design a mat foundation for six RC columns of size 400 mm x 400 mm (9)
arranged in two rows of 3 columns. The c/c spacing of all columns is 4.5 m.
The axial service loads on the four exterior columns are 750 kN and on two
interior columns are 1000 kN. SBC= 100 kN/m?. M20 grade concrete and Fe
415 grade steel are used for the footing.
PART B
4, a. How piles are classified in to different groups and list different types of piles (4)
in each group.
b. What are the different methods available to determine the load carrying (5)

capacity of piles? Explain the method for piles in granular soil.

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