Newcastle University Technology Exam 2007
[ARC1013]
NEWCASTLEUNIVERSITY
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SEMESTERONE2007/08
January
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ARCHITECTURALTECHNOLOGY1.1
Timeallowed–2Hours
Markswillbeallocatedasfollows:
PartA-40%PartB-60%
AnswerALLquestionsinPartAAnswerTHREEquestionsinPartB
Illustrateyouranswerswithfreehand,annotatedsketches,whereappropriate.
[PleaseTurnOver]
PartA,pleaseanswerallquestions,allquestionscarryequalmarks.
A1
Writebriefnotesonthefollowing,inthetermsofthe‘ExpectationofStructure’:
(aStrength(bServiceability(cStability
Asteelrod10mmindiameterand500mmlong,supportsa100kgmass:
Determinethestressintherod(youmayassumetherodhasnegligiblemass.
(aAssumingthattheYoung’sModulusofElasticityis205000N/mm2determinethe
strainintherod.Thecharacteristicdeadloadonabeamis5.0kN/mandthecharacteristicimposedload2.0kN/m,determinethedesignload.
Medievalcathedralspermittedlighttoenterthespacevialargewindows,describethestructuralprincipleusedtoachievethis.
Listandgiveshortnotesonfivefeaturesthatwillaffectthestrengthoftimber.Explaintheprocessbywhichcementbondscoarseandfineaggregatestogethertoformconcrete.
ExplainthedifferencesbetweenToughenedandLaminatedglass.Contrasttheperformanceofstructuralsteelandconcreteinafire.
A2
A3A4A5A6A7A8
PartB,pleaseanswer3questionsB1(a(b
B2(a
(b
Usingthegraphicalmethod,determinethemagnitudeandnatureoftheforcesinthe
trussshowninFigure1.(15marks
Linea----acutstheframetotherightofcentre,usingtheMethodofSections
calculatethemagnitudeandnatureoftheforcesinthethreeelementscutbythelinea----a.Compareyouranswerstothoseobtainedfrompart(a.(5marks
10kN
20kN
a
10kN
45o
45o45o
45o45o45o
2m
2m
a
2m
Figure1
UsingtheruleofthumbforalightlyloadedbeamdepictedinFigure2,calculatethedepthofthebeam.(5marks
Usingthetheoryofbending,calculatethesizeofthebeamshowninFigure2,thatwouldsupportthegivenload.Youshouldcalculateforbothbendingandshearforces,comparethecalculatedsizeofbeamwiththeestimatefrompart(aandcomment.(15marks
2.0kN
2.0kN/m
0.5m0.5m3m
Figure2
B3
(a(b
List5reasonswhymasonryconstructionispopular.(5marks
Acavitywallwith100mmbrickouterleafanda150mmblockworkinnerleaf
supportsanimposedloadof20.0kN/m.Thewallheightis3.0metresandissimplyrestrainedtopandbottom.Theblockdensityis750kg/m3.Determinetheactualcompressivestressatthebaseofblockworkwall,Table1willassistyouinthiscalculation.(15marks
Slendernessratio
06810121416182022242627
ReductionFactor
1.01.01.00.970.930.890.830.770.70.620.530.450.40Table1
