Download AKTU (Dr. A.P.J. Abdul Kalam Technical University (AKTU), formerly Uttar Pradesh Technical University (UPTU) B-Tech 5th Semester (Fifth Semester) 2016-2017 Design Of Concrete Structure I Nce 505 Question Paper
(Following Paper ID and Roll No. to be filled in your
Answer Books)
Paper ll) : 2.0122?) Roll No,
B.TECH
Regular Theory Examination (Odd Sem - V) , 2016 - l7
DESIGN OF CONCRETE STRUCTURE - 1
Time : 3 Hours Max. Marks : 100
SECTION -A
1. Attempt all parts. All parts carry equal marks.
Write answer of each part in short. (10X_2=20)
a) What is pedestal and where does it use?
b) Write the measures to? control the de?ection in slab.
(2) Define admixture? List different types of
admixtures.
(1) Write situations in which one - way behavior can
be assumed of a slab Supported on four sides.
e) State water-cement law and how does it in?uence
the strength of concrete?
f) How is it determine whether a beam of a given
dimensions is to be designed as doubly reinforced?
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N CE-SOS
g) What is meant by shear lag in T-beams?
h) How does the shear span in?uence the mode of shear
failure?
i) How are slabs classified? List the various
classi?cations.
j ) What is the role ofminimum Eccentricity in the design
of column?
SECTION - B
2. Attempt any FIVE questions from this section.
(5X 1 0=50)
a) A rectangular beam section is 20 cm wide and 35cm
deep upto the centre of reinforcement. Determine
the reinforcement required at the bottom if it has
to resist a factored moment of
i) 5kNm
ii) 40 kN?m.Use M25 mix concrete and TOR
steel.
b) i) Discuss the salient features of working stress
method and ultimate load method.
ii) Discuss the. need and salient features of
performance based design.
c) Design a doubly reinforced section for a rectangular
beam at midspan having a simply supported
effective span of 4m. The superimposed load is
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d)
g)
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40kN/m and section of beam is limited to 25 cm x
40cm overall. Assume suitable data.
Design a singly reinforced concrete beam of width
300mm, subjected to an ultimate moment of
250kNm. Assume fck =25MPa and fy =415MPa.
Determine the ultimate moment of resistance of a
doubly reinforced beam section with the following
data : b=350mm, d=550mm, d? = 60mm, Ast= 5-
32mm. ? bars, ASC = 3-25 mm? bars, fy= 415MPa
and fck = 25 MPa.
A rectangular beam of size 250mm width and.
500mm effective depth is reinforced with four bars
of 25 mm diameter. Determine the required vertical
shear reinforcement to resist factored shear force
of
i) 80kN
ii) 300kNand
iii) 600kN. consider concrete of grade M20 and
steel of grade Fe415.
A hall in a building has a ?oor consisting of
continuous slab cast monolithically with simply
supported 230 mm wide beams spaced at 3.5m c/c.
The clear span of the beam is 6m. Assuming the live
load on slab as 3.0kN/m2 and partition plus load due
to ?nishes as 1.5kN/m2, design the slab with M25
grade concrete and F e41 5 steel.
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11)
NCE-505
A hall measures 10 m X 6 m inside and has walls
400 mm thick. Design a suitable reinforced
concrete T beam roof to carry a superimposed load
of 2 kN/mz. Use M20 grade concrete and F 6415
grade steel.
SECTION - C
N ote: Attempt any two questions from this section.
3.
(2x15=30)
A column height of 1.5m is pinned at the bottom
effectively restrained against rotation but not held in
position at the top. It is subjected to a factored axial load
of 2500kN under the combination of dead load and live
load. Design the column, using M30 concrete and F e 415
steel.
a),
b)
A rectangular cantilever beam of span 3.5m is 30cm
XSOCm. Bending moment at the ?xed end due to
uniformly distributed service loads is 100 kN/m out
of which 40% moment is due to permanent loads.
Check the beam for de?ection. Assume M25
concrete.
Describe Pu - Mu interaction diagram used in the ?
analysis of eccentric column.
Design a continuous two - way slab system shown in ?g.
It is subjected to an imposed load of 3kN/m2 and surface
?nish of lkN/mz. Consider M25 concrete, grade Fe415
steel, and moderate environment. Assume that the
supporting beams are 230X500mm.
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This post was last modified on 29 January 2020