# PTU B.Tech CIVIL 6th Semester May 2019 71082 DESIGN OF CONCRETE STRUCTURES II Question Papers

PTU Punjab Technical University B-Tech May 2019 Question Papers 6th Semester CIVIL Engineering (CE)

Roll No.
Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(CE) (2011 Onwards) (Sem.?6)
DESIGN OF CONCRETE STRUCTURES-II
Subject Code : BTCE-601
M.Code : 71082
Time : 3 Hrs. Max. Marks : 60
INSTRUCTION TO CANDIDATES :
1.
SECTION-A is COMPULSORY consisting of TEN questions carrying T WO marks
each.
2.
SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt ANY FOUR questions.
3.
SECTION-C contains T HREE questions carrying T EN marks each and students
have to attempt ANY T WO questions.
4.
IS 456-2000, IS3370 and design aid SP 16 are permitted in examination.

SECTION-A
Q1.

a) List the different types of stairs.

b) Describe the assumptions for the design of strap footing.

c) Write the functions of lateral ties in a column.

d) Define the effective length.

e) Explain about intermediate and end moments in continuous beam.

f) In case of curved beams, the support sections are designed for maximum negative

g) Show plan and elevation of cantilever retaining wall.

h) When a shear key is provided in a reinforced concrete retaining wall?

i) In what ways, circular water tank is preferred over rectangular water tank?

j) What are various forces which are considered for the design of dome?
1 | M - 7 1 0 8 2

( S 2 ) - 9 7

SECTION B
Q2.
Design a footing for a rectangular column 230 ? 450 mm, carries an axial load of
1500 kN. The SBC of the soil is 150 kN/m2. Use M 20 concrete and Fe 415 steel.
Q3.
A reinforced concrete column 500 ? 500 mm is subjected to a factored axial load
1500 kN and factored moment of 150 kN-m. Determine the reinforcement for the
column. Use M20 concrete and Fe 415 steel.
Q4.
Write the basic assumptions made in design of continuous beam.
Q5.
Design a conical dome for hall 12 m in diameter. Rise of dome is 4 m. Live load on the
dome may be taken as 2.5 kN/m2. Use M25 concrete and Fe 415 steel.
Q6.
Why counterforts are provided in a retaining wall? Draw a counterfort retaining wall and
mark its components.

SECTION-C
Q7.
A staircase of 1.2 m width for an office building consists of each step built into wall with
a bearing of 110 mm along the flight with tread = 250 mm and rise = 200 mm. Design the
staircase and sketch layout of reinforcement. Use M20 concrete and Fe 415 steel.
Q8.
Design a rectangular water tank resting on ground having base area of 4m ? 6m. The
height of water tank is 3.75 m and keep a free board of 0.15m. Use M25 concrete and Fe
415 steel. Assume appropriate data and clearly state the assumptions.
Q9.
Write short note on :

a) Differentiate between isolated footing and combined footing.

b. Explain the basic assumptions made for design of short axially loaded compression

members.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any