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)