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൧൧ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

FIRST SEMESTER M.TECH DEGREE EXAMINATION, DECEMBER 2018
cwlL ENGINEERING

STRUCTURAL ENGINEERING

01 CE6107 Advanced Theory and Design of RC Structures
Answer any two full questions from each part. Limit answers to the required points. (5456-2000,

1513920-2016 and relevant charts for column design from SP16 are permitted. Use M35 concrete and
Fe SOO steel unless noted otherwise

Max. Marks: 60 Duration: 3 hours
PARTA

~ ೩. A rectangular simply supported beam of effective span 5 m is loaded with uniformly distributed
load of ‏"بن"‎ kN/m including the self weight. If the cross sectional dimension is 230 mm wide
and 500 mm deep, find the loading corresponding to the initiation of flexural cracks?. The
beam is provided with 2 bars of 20 mm diameter at the bottom of beam. Cover to
reinforcement is 30 mm and diameter oflinks is 10 mm. 6

b. Compare the above loading with that corresponding to the limit state moment carrying
capacity of above beam.3

2. 3. Design a beam and detail its support region, subjected to a bending moment 125 kNm near the
supports. Maximum shear and Torsion are 200 kN and! kNm respectively (All values are factored).
The cross sectional dimension is 300 mm wide and 500 mm 9 deep. Cover to reinforcement is 30
mm and diameter of links is 10 mm. Assume any other data required.

3. 9. When a column can be considered as braced? 2

b. Design and detail a column of unsupported length 3.6 m and effective length of 3m having the
cross sectional dimension of 400 mm x 400 mm. The factored actions -axial load is 3000 kN,
MUX=30 kNm and MUY=70kNm. 7

PART B

4.۰-4.۸ rectangular simply supported slab of effective span 4.2 ന and depth of 200mm 15 provided
with 10 mm bars@125 C/C @ bottom . Cover to reinforcement is 25 mm. Calculate the maximum
short term deflection.(Cracked Section)? Take 2 ५५ ‏امع‎ 6 kN/m? including self weight and live
load of 3 KN/m?. 25% of the live load can be considered as pennanent load. McF13kNm. Assume
shrinkage strain =0.0004, creep coefficient = | .6 5
0. Briefly explain the procedure for finding the long term deflection of the above beam and
how it is checked against code prescriptions? 4

5. 3. Find the crack width at the soffit of the slab given in problem 4. Assume any other
5 required data.
0. Briefly explain the checks for ascertaining beam column joint strength. 4