ce-208 id[a0609].pdf
TRANSCRIPT
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TotalNo. of Questions:09] [TotalNo. of Pages:02
B.Tech.(Sem.- 4th)STRUCTURAL ANALYSIS - I
SUBJECTCODE :CE-208PaperID : [A0609]
INote:Pleasefill subjectcodeandpaperID onOMR)
Time: 03Hours
Instruction to Candidates: -
1) Section- A is Compulsory.. "2) AttemptanyFour questionsfromSection- B."3) AttemptanyT~o questionsfromSection- C.
MaximumMarks: 60
.. ".Section-.A
Ql) . . (10x 2 =20)
i)
j)
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a) Statetpemomentareatheorem.
b) Howtofindthedeflectionbystrainenergymethodforacantileverwithconcentratedloadatthefreeend.
c) Forapressureof liquid"Pin theircylinder,findthestressesactingoni~.d) Deriveexpressionforstrainintheircylinder.
e) Whatis thebasicdifferencebetweenmethodof joints andmethodof .sections.
f) Whatarethefailurescriteriaofdams.Whatisthenotensioncriteriafora damsection.
g) Drawinfluencelineforshearforceforapointin cantileveroroverhang.
h) DrawinfluencelineforshearforceandB.M for singleloadW movingonthespan.
Differentiatebetweentwohingedandfixedarches.
Findthehorizontalreactionforuniformlyloadedcable.
Section'-B
(4 x 5=20)
Q2) Findthedet1ectionof acantileverbeamwithpointloadattheend.
Q3) Deriveexpressionforchangein volumeof athincylindricalshellduetoaninternalpressure. "
M-83 /1859}. " P.T.O.
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Q4) FindtheforcesinthemembersAB, AC andBC ofa trusshavingaspan01'5metersbymethodof sections.It is carryinga loadof 10tonnes.
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Q5) A concretedamof trapezoidalse.ctionhavingwateronverticalfaceis 16mhigh.Thebaseof thedamis 8mwideandtop3mwide.Find
(a) Theresultantthrustonthebasepermlengthof thedam.
(b) Thepointwheretheresultantthrustcutsthebase.TakeWt of concreteas25kN/m3andwaterlevel~oincidingwiththetopof thedam.
Q6) Find themagnitudeof Bendingmomentsfor udl shorterthanthespanformovingloads. ...
Section- C(2 x 10=20)
Q7) Determipetheinfluencelinefordeflectionatfreeendaswellasatadistance'a' fromthefreeendof acantilever.
Q8) (a) DeriveanexpressionforradialshearF andnormalthrustN forathreehingedarch.. .
(b) A symmetricalparabolicarchwithacentralhinge,ofriserandspanL issupportedat'itsendsonpinsatthesamelevel.Whatis thevalueofhorizontalthrustwhenaloadWwhichisuniformlydistributedhorizontallycoversthewholespan.AlsofindtheB.M atanypointinthearchrib.
Q9) (a) A cableisswungbetweentwopointsatthesamelevelwithacentraldipof 12moveraspanof 120m.Thecablecarriesaudlofintensity2~N/mofhorizontaUength.Calculatethechangeinthehorizontaltensionif thetemperaturerisesby20~Ffromtheoriginaltakea =6x 10-6per1F.
(b) Deriveanexpressionfortemperaturestressesinsuspensioncable.
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