Civil Engineering Question Paper

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USN 10cv81
(l4Marks)
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Eighth Semester B.E. Degree Examination, June/July 2014
Advanced Goncrete Technology
Coarse aggregate percentage of different fractions 60%:40%.
Fine aggregate belongs to zone II.
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Max. Marks:100
super plasticizer?
Explain the effect of fly ash on hafdened state of concrete.
Explain the factors affecting the-rllix.designpf concrete. (06 Marks)
Using Indian standard code M2b'lrdde methq .pf mix design, arrive to a mix proportion for
the following data [M20 grade] : "'"''7'""ls
maximum size of aggregate:20 mm
Degree of workability: g.9O compactor factor "' a,
Degree of quality control : good
Type of exposure: mild
Siecific graWy.,-daement : 3. 1 5
Specific gTAFfty of coarse aggregate: 2.65
Specific-$ihvity of fine aggregate :2.60
Water."pfubrption coarse aggregate: 0.5Yo s . r,..
Watei- absorption fine aggregate: l.0o/o
Free surface moisture-coarse aggregate : Nil
Free surface moisture fine aggregate:2.0Yo
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Note: l. Answer FIVE full questions, selecting
at least TWO questionsfrom each part.
2. Missing data may be suitably assumed.
3. Use of 15:10262-2009 is permitted.
:
"',.:. PART - A!:: .:.. i::..
EnumeratQffiimportance of Bogue's compounds in ordinary port-lhud cement. (07 Marks)
Explain the'@ppgy of concrete in terms of Bingham's paramefei. (07 Marks)
Determine cafiflqry,porosity, total porosity and gel space uat'b.,, or a cement paste with WC
ratio 0.5 and degffi of hydrationg}Yo. u,,,-,1, (06 Marks)
Explain the mechanisnr,oG 'deflocculation' of ceraenl particles by super plasticizers with
neat sketches. (10 Marks)
What is optimum dosage of super plasticizer? How do you determine the optimum dosage of
(06 Marks)
(04 Marks)
Discuss permeability of concrete.
Discuss in brief alkali aggregate reaction. What
same?
Explain corrosion in reinforced concrete.
(06 Ma;kC)
precautions are necessary to minimize, th*ld
(06 Marks)
(08 Marks)
PART - B
What is RMC? Explain briefly advantages of RMC. (06 Marks)
Explain shot crete and under water concreting. (08 Marks)
Mention the need for self compacting concrete. Mention its properties. What are different
test methods for determining the rheology of SCC? (06 Marks)
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2. 10cv81
6 a. What are the factors affecting properties of fibre reinforced concrete. List the various
applications of fibre reinforced concrete. (08 Marks)
b. What are the different types of fibres used in concrete? 106 Marks)
c. What is Ferro-cement? List the various applications of Ferro cement. (06 Marks)
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i) Lightweightconcrete *qffi'*' o*,ii) High density concrete o*-"& Marks)8 . *'
b.'-'.,3}iscuss in brief the properties of high performance concrete in fresh and hardQ6[ state.
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a. Tests on l{ffined concrete .. , ,--'., (08 Marks)
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3. 10cv82USN
Eighth Semester B.E. Degree Examination, June/July 2Ol4
Design and Drawing of Stee! Structures
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"' ;';ii*e: 4 hrs. Max. Marks:lffi";,]ld"..,Jlr
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4 hrs. Max. Ma*s:ffi"
'*" " Iotez 7. Answer ONEfuA questionfrom Part -A, ONE questionfrom each Part-B.. 1... , a. .-.:.
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PART - A
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I a. A seeoudary beam ISMB 300 @ 433.6 N/m is to be jointed to the main b6am ISMB 400 @
@ 604.3,. ,,trr Two angles ISA 90 x 90 x 6 are used for connectigp, i"li,ree bolts of diameter
20 mm us6d tp connect angle to the web of ISMB 300. 6 boltp"o'f20 mm diameter are used
to connect thb'a.pgles to the web of ISMB 400. The flanges ofboth beams are at the same
level. Draw to a suitpble scale.
i) Sectional elevatffi$ side view showing all details. , (16 Marks)
b. An ISHB 400 @ 7593,'N/m in the lower storey of a birilding is connected to ISHB 350 @
661.2 N/m of upper storey'The thickness of beariryplate is 34 mm. The thickness of splice
plate is 8 mm. Use suitab'lE-filler plate for,top column. 6 numbers of 16 mm diameter
ordinary bolts are provided for 0oryrqcting-gdp=tdf column flange with splice. Plate for lower
storey column and 6 numbers of 16 nrn diameter bolts are provided for connecting each of
column flange with splice and fillerp4f€:"'dor upper storey column and2 bolts for connecting
only flange and filler plate. Assumepitbh of bolts as 60 mm. Draw to a suitable scale :
i) Elevation
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2 a. Draw to a suitable sca-[e,.beam to column stiffened seat bonnections :
i) front view shqv4irrg c/s ofbeam .-,,r .*.
ii) side view showing elevation of beam for the following detdfu :
Column- ISHB 400 @ 82.2 ky'm (806.4 N/m)
Beam-='I+S{B 400 @ 6.6kgtm (604.3 N/m)
Seat angle. - ISA 100 x 100 x l0 mm
Cleat angle - ISA 90 x 90 x 8 mm
'Pq*r*';of stiffeners -2- ISA 90 x 90 x 8,8 - 20 mmbolts for stiffenerstQ,,column in two
,,,=i<i*s, two - 20 mm bolts for remaining connection. '""..
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b. ', Following are the details of gusseted base :
D Builtupcolumn:2-ISWB-400@aspacing of325 mmbetweenwebs ,+.
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, ,':""",,'" ii) Size of base plate : 600 mm x 750 mm "*"''l"ijr'r
,, iii) Thickness of base plate : 28 mm . "' ,,,
' iv) Gusset angles ISA 150 x 100 x 12 with longer leg connected to gusset plate "'' l"
v) Thickness of gusset plate : 12mm
vi) 16 bolts of 20 mm dia connect gusset angles to gusset plate, 16 bolts of 20 mm dia
connect gusset angles to the column
vii) Anchor bolts 20 mm - $ - 4 no
Draw to a suitable scale :
i) Elevation showing flanges of column
ii) Sectional plan.
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(15 Marks)

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10cv82
PART _ B
Design a roof truss in figure shown below Fig. Q3 with forces in each member along with its
nature of forces in different members of the truss are given in table Q3. The size of the RC
column supporting the truss is 300 x 300 mm. Use M20 concrete for column. Design tt$"*
truss using bolts of M16, property class 5.6 for connections and also design anchor bohs*ftfiff
an uplist force of 15 kN @ each support.
Draw to suitable scale :
,,.,.1 i) Elevation of truss greater than half span
MEMBER, _*.fpNeB (Ro) LENGTH (M)
AC. EB =='80:+Kn (C) 3.46 m
CD, DEl +;,70 kN (c) 3.46 m
AF, GS.. e 70 kN ) 4m
FG 50 kNCF, 4m
c&pc 24 kN(C)# 2m
JSE, DF 24 kN (T) .l 4m
C : compression;{#tension ; AC : CD : DE : EB ; reaetidr$ @ A andB Ra : Re : 50 kN..
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(70Marks)
Design a ttrhply supported crane gantry girder for the folffi*9ata. The girder is
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operated. Yield stress of steel is 250 N/mm2. Use 16 -* bffim"ter bolts of grade
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.;...'..ii)Effectivespanofgantrygirder=7m
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- iii) Capacity of crane :220 kN
iv) Self weight of crane excluding crab :200 kN
v) Weight of crab ' :60 kN
vi) Wheel base distance : 3.4 m ;+;i*l,
vii) Minimum hook approach : 1.1 m -',fuN,
viii) Self weight of rail :0.3 kN/ m r"
ix) Height of rail :75 mm
Draw to a suitable scale :
The c/s of gantry girder and its attachment to supporting column of the bracket
Plan details
Side elevation.
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b.
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(70 Marks)

5. USN
10cv847
e. E.I.A in lndia.
f. E.I.A of Water Resource Project. (20 Marks)

6. 10cv833USN
Eighth Semester B.E. Degree Examination, June/July 2Ol4
Pavement Design
,/r,}$'t*": 3 hrs'
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Max. Marks:10&u
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(10 Marks)
Note: Answer any FIVEfull questions, selecting
atleast TWO quesfionsfrom each part.
PART _ A
a., .:Vhat are the different layers of flexible pavements? Explain the functions o@b1.'
, :1,,1:1 (10 Marks)
EryIffiiefly the basic design differences between an airport anA anp,,fWar r*.,T;il;
Explain t that effect design and performance of highw nts. (10 Marks)
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granular base.
0.07 MN/m2. On
ts were conducted with a75cm diameter
Catalogue Q.4(b)
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'on
soil subgrade and a
noticed when the deflection was on the subgrade soil, was
for various wheel loads equivalent to
data on a four lane road: 10 Marks)
b.
a.
b.
course, the same plate yielded.0l25cm deflection under a stress of
avement for an allowable *efffiction of 0.5cm. Under a wheel load
e,of 0.5 MN/m2 assume thib.kness of base course is 15cm.
(10 Marks)
ADT in both direction,
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of total traffic vo
Explain briefly on important,a{gtoss wheel to6d and contact pressure in stress distribution
pattern and in pavement*mlff. 1 (10 Marks)
Explain the California ffiance value method of flexffipavement design. (10 Marks)
It is proposed to w.id an existing 4 lane NH sectibh'to J lane dual carriage way road.
Design the pavern ""for new carriageway with the follow@data:
lnitial traffic in loBth directions: 4932 CYPD
Constructjo.+,lleriod:20 months q-*1;*
Designffi,T5 years "
-.'-',
Des,igp€BR of soil (identified muffam borrow pot soil): 7% r...''"-
Trffilrowth rate: 8% ;*a .d.
VDF: 4.5 ! {
',,t Pavement Design Catalogue . .:::.
late2- Recommended Desisns for Traffic Ranee 10-150 msaP 2- Recomme Insa
CBRT%
Cumulative
traffic (msa)
Total pavement
thickness (mm)
Pavement Composition
Bituminous Surfacing
Granular base and sub-
base (mm)
BC (mm) DBM (mm)
10
20
30
50
100
1s0
580
610
630
650
575
695
40
40
40
40
50
50
60
90
110
130
t45
165
Base:250
Sub-base :230
(10 Marks)

7. 10cv833
PART _ B
5 a. What are the advantages of Bradbury's stress coefficients and other load stress characters in
the design of rigid pavements? (10 Marks)
b. Calculate the stresses at interior, edge and corner regions of a C.C. pavement using Wester
,fl Gaard's stress equation use the following data:
"r1".4, Wheel load: 5100kg, E : 3 x,105 kg/cm2, $:0.15, pavement thickness :
:'{-,tl;*" of subgrade reaction :6kglcrrf, radius of contact area:15cm.
6 ,,*a'. A C.C. Davement has a thickness of 18cm and has two lanes of 7 .2m wil
18cm, mod
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b.
7a.
CVPD
vi) Design ffe: iO year$.3'',- "
Take 1cm of B.M.
"q,rui.47cm
of DBNI/BCISD&C. Determine the thickness of granular
layer and bituminous lffiF:' sing IRC equation andl a|,p;.determine thickness of bituminous
macadam overlay wffi.the overlay thickness design ci*ives-..* (14 Marks)
b. What are the v4rfficauses of formation of waves and cef4llq*tions in flexible pavements?
Suggest remedia"l rneasures. (06 Marks)
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iv) Annual growth rate of coffiffffitvehicle :7.5oh
v) Vehicle damage factor =T.SY
a. What ar&.bl*€'various design factors to be considered in airport par4gments? Discuss the
t
significance of each. (10 Marks)
b. Ex_ffi'Uriefly the pavement evaluation.
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(10 Marks)
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8. 10cv833
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