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EGR1200/1205
CivilEngineering
Thisprojectincorporateselementsofthefollowingengineeringdisciplines:
http://aolpapers.com/pros-and-cons-of-mechanical-engineering/ https://www.livescience.com/47612-civil-engineering.htmlhttp://engineeringschools.com/resources/an-interview-with-craig-janus-electrical-engineer
MechanicalEngineering
ElectricalEngineeringand
ComputerProgramming
SmartStructures
http://www.cts.umn.edu/Publications/catalyst/2012/october/smartbridge
Sensorsallowengineerstobetterunderstandrealworldstructuralbehaviorandcanbeusedtoensurethatdesignsfunctionproperly.
Smartstructuresutilize remotemonitoringofstructuralbehaviorbyincorporatingelectronicsensorsonexistingstructures.
Forexample,over500sensorsontheI-35WSt.AnthonyFallsbridgemonitor:
I-35WSt.AnthonyFallsBridge
• Strain• Loaddistribution• Vibrations• Temperature• Potentialforcorrosion
• Overallbridgemovement
• Bridge’ssecurity• Automaticanti-icing• Lightingsystems
Thisprojectisabouttheabilitytodesign structuresandmonitor theirbehaviorwhensubjectedtoexternallyappliedloadssuchas:
TRAFFIC WINDandWATER SEISMIC
StructuralBehavior
https://www.fastcompany.com/40402898/a-solution-for-the-bay-areas-traffic-woes-and-other-world-changing-transportation-ideas http://www.sanandreasfault.org/EQS.html
Design isaniterativeprocessrequiringknowledgeofmaterialsandmechanics.
Concrete,wood,steel,andmanyothermaterialsareavailabletotheengineer…whichmaterialisbestforagivenapplication?
Boxbeams,I-beams,barjoists,woodjoists,concretegirders…whichshapeisthebestdesignforagivenapplication?
Design
http://www.starmetalwork.co.uk/products/structural-steel-fabrications.html https://www.apawood.org/structural-composite-lumberhttp://www.ficepgroup.com/steel-construction-machinery/beams/ https://oldcastleprecast.com/oldcastle_product/bridge-girder-aashto/
StructuralElementBehavior
Tounderstandstructuralbehavior,wewillfirstperformhandsonactivities tounderstandastructuralelement’sabilitytoresistdeformationwhensubjectto:
Axialloadsloadsthatcauseastructuralelementtoelongate(tension)orcompress(compression)
Flexuralloadsloadsthatcauseelongation(tension)ononesideofthestructuralelementandcompressionontheotherside
tension
tension
compression
StructuralElementBehavior
Astructuralelement’sstiffnessandstrengthisrelatedtobothit’sgeometryanditsmaterialbehavior.We’llalsoperformhandsonactivities tounderstandamaterial’sresponseunderload,andhowitrelatestothegeometryofthestructuralmember.
Strain isdefinedasthechangeinlength,DL,dividedbytheinitiallength,Lo:ε=DL/Lo
Stress isdefinedasaforce,F,dividedbyanarea,Aσ=P/A
AndthematerialstiffnessisdefinedasitsModulusofElasticity,EE=σ/ε
ElectronicSensors
Straingauges
Electronicsensorswillbeusedtointhelabtomeasurestructuralresponse.Inrealworldapplications,theseinstrumentscanbemonitoredon-siteandremotelyusingdataacquisitionsystems.You’lllearnaboutthesetypesofsensorsandsystems.
DataAcquisitionSystem
LinearPotentiometers
Accelerometers
Instrumentation
Youwilllearnhowtobuildandprogramaworkingsensorsystemconsistingofsingle-boardmicrocontrollersandmicrocontrollerkitsforbuildingdigitaldevicesandinteractiveobjects.
FinalProject
Asafinalproject,teamswill:-Designandconstruct aflexuralelement(structuralbeam)tosupportaload.-Designandbuild anelectronicsensortomonitortheflexuralelementwhileitisloaded.-Program thedataacquisitionsystemtoalerttheuserwhenadesignlimitisreached.
Arduino Sensor(s)
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