West Virginia Bridge Design & Build Statewide Contest...

West Virginia Bridge Design & Build

Statewide Contest 2017

ImportantDatesWVStatewideQualifyingRoundBegins:October10,2016

DeadlineforTeacherstoRequestClassroomVisitMarch1,2017WVStatewideQualifyingRoundEnds:–March15,201711:59p.m.

StatewideFinalistNotificationDeadline:March31,2017StatewideFinals:May13,2017

ContestSponsors

2017WestVirginiaBridgeDesignandBuildContestRulesV1.010/3/2017 Page2

TableofContents

1 What’sNew?ImportantInformationforthisYear’sContest................................................3

1.1 TeamRegistration............................................................................................................3

1.2 BridgeDesignSoftwareandFileSubmission...................................................................3

1.3 BalsaBridgeRequiredforStatewideFinalistsandSeparateRanking..............................3

2 WVStatewideContestInformation........................................................................................4

2.1 Overview..........................................................................................................................4

2.2 OversightandCoordination.............................................................................................4

2.3 Rules&Eligibility..............................................................................................................5

2.4 ContestSchedule.............................................................................................................5

3 BridgeDesignContest.............................................................................................................6

3.1 BridgeDesignerSoftware................................................................................................6

3.2 RequestingClassroomVisits............................................................................................7

3.3 TeamRegistration............................................................................................................7

3.4 BridgeDesignSoftwareandFileSubmission...................................................................7

3.5 FinalistSelection..............................................................................................................7

3.6 FinalRound......................................................................................................................7

4 BalsaBridgeBuildContest....................................................................................................10

4.1 Overview........................................................................................................................10

4.2 BalsaBridgeKits.............................................................................................................10

4.3 TeamComposition.........................................................................................................10

4.4 TheProblem...................................................................................................................10

4.5 TheChallenge................................................................................................................10

4.6 TrussBridgeSpecifications............................................................................................11

4.7 FinalRound....................................................................................................................12

4.8 NotestoTeamMentors.................................................................................................12


1 What’sNew?ImportantInformationforthisYear’sContest1.1 TeamRegistrationThe2017WVStatewidecontestwillberunseparatefromtheNationalEngineeringEncountersBridgeDesignContest(EEBDC),whichtypicallystartsinJanuaryofthecontestyear.Therefore,registrationfortheWVStatewidecontestmustbecompletedatthecontestwebsite:www.wvbridgedesignandbuildcontest.com.TheoutcomeoftheWVStatewideFinalsdoesnothaveanyimpactontheselectionofteamsfortheNationalContestFinals.1.2 BridgeDesignSoftwareandFileSubmissionThe2017WVStatewidecontestwillutilizetheBridgeDesigner2016software(samesoftwareasthe2016WVStatewidecontest).Thesoftwarecanbedownloadedfromwww.wvbridgedesignandbuildcontest.com.SoftwaredesignfilesmustbeuploadedtotheWVStatewidecontestwebsiteforevaluationusingtheteam’slogininformation.1.3 BalsaBridgeRequiredforStatewideFinalistsandSeparateRankingBalsabridgebuildingandtestingwasincorporatedintotheWVStatewidecontestforthefirsttimein2016.Duetotheoverwhelmingpositiveresponsefromtheparticipants,thebalsabridgebuildingwillincludedagainthisyear.Inthe2016contest,thebalsabridgewasoptionalandteamswithbridgesthatheldtheminimumrequiredloadwereabletodoubletheirbridgedesignprize.Forthe2017contest,finalistswillberequiredtoconstructabalsabridgeandthebalsaaspectofthecontestwillhaveitsownrankingsbasedonjudgesscoresandstrength-to-weightratio.Therefore,prizeswillawardedindependentlyforthedesignandthebuildaspectsofthecontest.


2 WVStatewideContestInformation2.1 OverviewWestVirginiaBridgeDesignandBuildContestisastatewidecontestintendedtoconductoutreachtomiddleschoolandhighschoolstudentsintheareaofengineering,specificallycivilengineering.Thecontestprimarilycoversbridgedesign,butteamsinvitedtotheFinalRoundwillalsohavetheopportunitytocompeteinabridgebuildingcontest.TheWVStatewideContestrunsfromOctober10,2016untilMarch15,2017at11:59p.m.Inordertobeenteredintothiscontest,teamsmustregisterfortheWVStatewideContestatwww.wvbridgedesignandbuildcontest.com.Thiswillensurethatthecorrectcontactinformationisavailabletocontactthefinalists.Allbridgedesignfileswillbeuploadedtothiswebsite.ThetoprankedteamsenteredintheWVStatewideContestwillbeinvitedtoparticipateintheStatewideFinalstotakeplaceonMay13,2017atMarshallUniversityinHuntington,WV.Itisanticipatedthatapproximately25teamstotalwillbeinvitedfromhighschoolandmiddleschoolentries.TheteamswillbenotifiedbyMarch31,2017.TheteamsthataccepttheinvitationtotheWVStatewideFinalswillreceiveabalsawoodkittoconstructabridgeandbringtothefinals.2.2 OversightandCoordinationThe2017WestVirginiaBridgeDesignandBuildContestisbeingconductedbytheRahallTransportationInstituteatMarshallUniversityandtheWestVirginiaDepartmentofTransportation–DivisionofHighways.Theconteststeeringcommitteemembersfor2016arelistedinthetablebelow:

Name OrganizationCasseyBowden RahallTransportationInstituteJenniferDooley WestVirginiaDOT-DOHGregMallory GeorgeWashingtonHighSchoolRylandMusick WestVirginiaDOT-DOHAndrewNichols RahallTransportationInstitute

Thecoordinatorofthe2017contestisCasseyBowden.Shecanbecontacteddirectlywithanyquestionsusingthecontactinformationbelow:

[email protected]


2.3 Rules&Eligibility

1. Studentsmayparticipateinthestatefinalscontestfromgrades6-12.StudentsmustbeattendingaWestVirginiaschoolormustbehome-schooledataWestVirginiaaddress.

2. Studentsmaycompeteindividuallyorinteamsoftwo.3. AlleligiblestudentswillbeplacedintooneoftwoContestCategories—MiddleSchoolor

HighSchool—basedsolelyontheirgradelevel.Eligiblestudentsingrades6-8willberegisteredintheMiddleSchoolCompetition.Eligiblestudentsingrades9-12willberegisteredintheHighSchoolCompetition.

4. Teamscomposedofonehighschoolstudentandonemiddleschoolstudentwillbeconsideredasahighschoolteamforcompetitionpurposes.

5. AnycontestantwhoisnoteligiblemayregisterandcompeteintheOpenCompetition.6. StudentsmustregistertheWestVirginiaStatewidecontestwebsite

(www.wvbridgedesignandbuildcontest.com).7. StudentsparticipatingintheWVStatewidecontestmustcreatetheirdesignsusingthe

BridgeDesigner2016softwarethatcanbedownloadedfromthecontestwebsite.Alldesignsmustbeuploadedtothecontestwebsiteforevaluation.

8. StudentsareexpectedtoperformtheirownworkduringtheQualifyingRoundandFinalRound.Studentsthatarecaughtcheatingorexhibitingbehaviorthatisnotrepresentativeofthecontestvaluesofteamworkandhonestymaybedisqualifiedatthediscretionofthecontestadvisoryboard.

2.4 ContestScheduleTheschedulefortheWVStatewideContestareshowninthetablebelow.Registrationcanbecompletedatwww.wvbridgedesignandbuildcontest.com.TheQualifyingRoundwillendonMarch15,2017at11:59p.m.EST.ThetopteamsattheendoftheQualifyingRoundwillbeinvitedtoparticipateintheWestVirginiaBridgeDesign&BuildContestonMay13,2017inHuntington,WV.

Event DatesRegistration October10,2016–March15,2017QualifyingRound October10,2016–March15,2017NotificationofFinalists March16–March31,2017BalsaBridgeConstruction April1–May12,2017FinalRound May13,2017


3 BridgeDesignContest3.1 BridgeDesignerSoftwareTheBridgeDesigner2016softwarecanbedownloadedfromwww.wvbridgedesignandbuildcontest.com.Thebulletsbelowprovideanoverviewofthesoftwareuse.Additionaltutorialsareprovidedonthebridgecontest.orgwebsite.

• Studentswillbepresentedwitharequirementtodesignabridgetocarryagivenloadfromaroadwayacrossariver.

• Studentsmaychoosefromawidevarietyofdifferentsiteconfigurationsfortheirbridge.Eachwillcarrytheloadinadifferentway,andeachwillhaveadifferentsitecost.

• Studentswilldevelopadesignfortheirbridgebydrawingapictureofitonthecomputer.

• Oncethedesigniscomplete,the2016BridgeDesignerwilltestthebridgetoseeifitisstrongenoughtocarrythespecifiedhighwayloads.Thistestincludesafull-coloranimationshowingatruckcrossingthedesignedbridge.Ifthedesignisstrongenough,thetruckwillbeabletocrossthebridgesuccessfully.Ifnot,thestructurewillcollapse.

• Ifthebridgedesigncollapses,itcanbestrengthenedbychangingthetypesofsteelandthesizesofthestructuralcomponentsthatmakeupthebridge,orbychangingtheconfigurationofthebridgeitself.

• Oncethebridgecansuccessfullycarrythehighwayloadwithoutcollapsing,thestudentcanthenrefinethedesignwiththeobjectiveofminimizingitscostwhilestillensuringitisstrongenoughtocarrythespecifiedloads.


3.2 RequestingClassroomVisitsTeachersmaysubmitrequestspriortoMarch1,2017foranengineeringprofessionaltoconductafreeclassroomvisittoexplaintostudentshowtousetheBridgeDesigner2016softwareandteachsomeaspectsofbridgedesign.Thevisitsmaybeconductedbyanundergraduateengineeringstudentchaptermember(e.g.,BluefieldStateUniversity,FairmontStateUniversity,MarshallUniversity,WestVirginiaUniversity,orWVUInstituteofTechnology),aWestVirginiaDepartmentofTransportationemployee,oranotherprofessionalengineervolunteer.Theseassignmentswillbebasedonthelocationoftheschoolandday/timeoftherequestedvisit.RequestsmustbesubmittedviathecontestwebsiteundertheTeacherPortal.3.3 TeamRegistrationThe2017WVStatewidecontestwillberunseparatefromtheNationalEngineeringEncountersBridgeDesignContest(EEBDC),whichtypicallystartsinJanuaryofthecontestyear.Therefore,registrationfortheWVStatewidecontestmustbecompletedatthecontestwebsite:www.wvbridgedesignandbuildcontest.com.TheoutcomeoftheWVStatewideFinalsdoesnothaveanyimpactontheselectionofteamsfortheNationalContestFinals.3.4 BridgeDesignSoftwareandFileSubmissionThe2017WVStatewidecontestwillutilizetheBridgeDesigner2016software(samesoftwareasthe2016WVStatewidecontest).Thesoftwarecanbedownloadedfromwww.wvbridgedesignandbuildcontest.com.SoftwaredesignfilesmustbeuploadedtotheWVStatewidecontestwebsiteforevaluationusingtheteam’slogininformation.3.5 FinalistSelectionThetoprankedteamsenteredintheWVStatewideContestwillbeinvitedtoparticipateintheStatewideFinalstotakeplaceonMay13,2017atMarshallUniversityinHuntington,WV.Itisanticipatedthatapproximately25teamstotalwillbeinvitedfromhighschoolandmiddleschoolentries.TheteamswillbenotifiedbyMarch31,2017.3.6 FinalRoundTeamswillcompeteintheirrespectiveMiddleSchoolandHighSchooldivisions.The2016BridgeDesignersoftwarewillbeutilizedtodesignthelowestcostbridgefortwodifferentscenariostobeidentifiedbythejudges(e.g.,deckmaterial,deckelevation,abutments,etc.).ThesescenarioswillbedifferentthantheQualifyinRound,whichdidnotspecifythebridgetypeorotherparameters.Awardswillbebasedonthelowestcombinedbridgecostfromthetwoscenarios.


3.6.1 TeamCompositionTheBridgeDesignteamcompetingintheContestFinalsmustbethesameindividualsthatcompetedinthequalifyinground.IfoneoftheindividualsonateamoftwoisunabletocompeteintheContestFinals,theremainingteammembercancompeteasanindividual.Undernocircumstancescanateammemberbesubstituted.3.6.2 CompetitionTheBridgeDesignFinalswillconsistoftwosequential45-minuteroundswitha15-minuteintermission.Eachroundwillutilizeaspecificdesignscenariothatisselectedbythejudges.Thefollowingruleswillbeenforcedduringthecompetition.

1. Allteamsinthesamedivision(HighSchoolandMiddleSchool)willbeinthesamecomputerlab.EachteamwillbeseatedinfrontoftwocomputersthatarecapableofrunningtheBridgeDesignerSoftware.Onlyonecomputercanbeutilizedforthecompetition.Iftheinitialcomputerencountersaproblemduringthecompetition,notifyajudgeimmediately.Donotstartusingthesecondcomputerwithoutajudge’spermission.

2. Thebridgedesignscenariowillbepre-configuredonthecomputers.Teamsarenotpermittedtochangethedesignscenarioduringthecompetition.Iftheprogramshutsdownandhastoberestarted,notifyajudgesothattheycanconfirmthescenarioiscorrectafterrestartingtheprogram.

3. Computerproblemsarealwayspossible.Therefore,saveyourdesignfileonthecomputerdesktopwhenyoustartdesigning.Makesureyousavethefilefrequentlysothatyoudonotloseyourworkintheeventofacomputermalfunction.Ifadesignislostandunabletobejudged,noadditionaltimeorotherallowancesarepermitted.

4. Teamswillbegivenasheetofpapertorecordtheirbridgecostsanditerationnumber.Thisisforboththeteamandthejudgestokeeptrackoftheirlowestbridgecost.Judgeswillperiodicallyrecordallofthebridgecostsanddisplaytheliverankingsforallparticipantstosee.

5. Thebridgedesign(iteration)thatisshownonthescreenwhentheroundendsisthedesignthatwillbejudged.Itistheresponsibilityoftheteammemberstoensurethattheirlowestcostdesignisshownanditpassestheloadtest.Ifthefinaldesigndoesnotpasstheloadtest,acostof$9,999,999willberecorded.

6. Itisnotfeasibletohidethecomputermonitorsfromtheviewofotherteams.Therefore,allindividualsmustkeeptheireyesontheirownscreens.Anyonecaughtlookingatanotherteam’sscreenswillresultinthedisqualificationofthatteamfortheentirecompetition.

7. Cellphonesandotherpersonalcommunicationdevicesarenotpermittedinthecomputerlabduringthecompetition.Anyonecaughtwithadeviceintheroomduringthecompetitionwillbedisqualifiedfromtheentirecompetition.

8. Individualswhosebehaviorisdeemedtobeinappropriateorunsportsmanlikewillbedismissedfromthecompetitionandmayforfeitanyprizestheirteamiseligibletoreceive.

9. Parents,chaperones,teachers,siblingsorotherpersonsarenotpermittedinthe


computerlaborthehallwayoutsideofthecomputerlabduringtheBridgeDesigncompetition.Therewillbeaseparateareaforthoseattendingwiththecompetingstudent.

3.6.3 JudgingThejudgeswilldeterminethetwodesignscenariosforthehighschooldivisionandthetwodesignscenariosforthemiddleschooldivisionpriortothecompetition.Attheconclusionofeachdesignround,judgeswillrecordthecostofthebridgedesignshownonthecomputerscreen.Ifthatbridgedesigndoesnotpasstheloadtestorifitisdeterminedthatthedesignscenariowasnotfollowed,thejudgeswillrecordacostof$9,999,999.Judges’decisionsarefinal.Judgeswillcombinethebridgecostsfromthetwodesignroundsforeachteam.Awardswillbebasedonthecombinedcostforeachteam.


4 BalsaBridgeBuildContest4.1 OverviewTheteamsinvitedtotheStatewideFinalswillbemailedakittoconstructabalsawoodbridge.Teamsaretoconstructasinglebalsabridge,whichwillbetestedandjudgedonthedayoftheStatewideFinals.Bridgeswillbejudgedonbothaestheticsandtheamountofweightitwillholdbeforefailure.4.2 BalsaBridgeKitsThebalsabridgekitswillbemailednolaterthanApril7,2017tothehomeaddressprovidedfortheteamcaptain.ThekitwillconsistofBalsaWoodandWoodGluethatistobeusedtoconstructthebridge.Onlythematerialsincludedinthekitcanbeusedintheconstructionofthebridge.PleasecontacttheCasseyBowden([email protected])ifthereisaproblemwithyoursupplies.4.3 TeamCompositionOnlyonebridgecanbesubmittedperteam.TheBalsaBridgeBuildteamandtheBridgeDesignteammustbethesameindividuals.TheBridgeDesignteamisthesameteamthatisregisteredonthecontestwebsite.4.4 TheProblemThegoalofthiscompetitionistodevelopaTrussBridgethatwillcarrythemaximumloadwhileweighingaslittleaspossible(strength-to-weightratio).Itisrecommendedthateachteamresearchthebridgetypeanddesign,thenconductexperimentstotestforthehigheststrength-to-weightratio,andthendesignandconstructacompetitionbridgebasedonthoseexperiments.EachbridgewillbecheckedforcompliancewiththeTrussBridgeSpecificationsinSection4.6.Thebridgeswillbeweighedandloadtestedduringthecompetitiontocalculatestrength-to-weightratio.4.5 TheChallengeAnengineer’sjobistonotonlydesignasafebridgetocarryrequiredloads,butalsotomakesurethatitiscosteffective(leastamountofmaterialsusedtosupportthedesiredload).Theobjectiveistoobtainahighstrength-to-weightratio(examplecalculationshownbelow).

Example: MaximumLoadHeld=40.0lbs BridgeWeight=20.0grams Strength-to-WeightRatio= 40lbs

20.0grams× 454grams

lb = 908.0 lbsloading

lbsweight


4.6 TrussBridgeSpecificationsThebridgemustbedesignedandconstructedfollowingthesespecifications.Violationofthesespecificationswillresultinthejudgesrecordingzerofortheloadsupported.

1. ThematerialsprovidedinthekitaretheONLYmaterialstobeusedwhenbuildingthebridgestructure.Nomodificationstothestructuralpropertiesofthebalsawoodareallowed.Differentglueisnotallowed.

2. ThedeviceusedfortestingwillbethePitscoStructuresTestingDeviceshowninFigure1a.

3. Lamination(gluingtwopiecesofwoodalongtheirlongitudinallengthtoincreasestrength)isnotpermitted(showninFigure2).However,jointsmaybethickertoaccommodatejoiningwoodpieces.

4. Thetotallengthoftheentirebridgeshallbe12inches±0.5inches.5. Thetotalwidthofthebridgeshallbe5inches±0.5inches.6. Ablockofwoodthatis3.25incheslongby2.0incheswideby0.75inchhighmustbe

abletobepushedacrossthebridgedeck.Theblockofwoodisnecessaryforloadtestingthebridge.

7. ThePitscoSpanSupportswillbeplacedat12inchesoncenter,asshowninFigure1b.8. ThebridgeshallonlytouchthetopofthePitscoSpanSupportsasseeninFigure1b.9. Thebridgedeckmustincorporatea3/4-inchwideopeningatmid-spantoallowa5/8-

inchdiametertestingrodtopassthroughandattachtothewoodblock(seeitem6above).Therodmustbeabletopassthroughthefullheightofthebridge.

(a)PitscoStructuresTestingDevice

↑-------------------12 inches----------------↑

(b)TesterandSpanSupportDetailFigure1.BridgeTestingApparatus


Figure2.LaminationofBalsaWoodMembersisNotPermitted4.7 FinalRoundOnthedayoftheStatewideFinals,teamswillbringtheirBalsaBridgesandsetthemupintheirdesignateddisplayarea.Thebridgewillremaininthatdesignatedareauntilloadtesting.Thefollowingcriteriawillbeusedinjudgingthebridges.

AESTHETICS:Judgeswillevaluatethebridgesforqualityofconstruction(e.g.,noexcessglue,neatcuts,symmetry,etc.)andtheresemblancetoatrussbridge.ThemostaestheticbridgeintheHighSchooldivisionandMiddleSchooldivisionwillwinanon-cashprize.PERFORMANCE:BridgeswillbeweighedandthenloadtestedonthePitscoTester.Resultswillbeusedtocalculatestrength-to-weightratio.AnybridgenotmeetingtheTrussBridgeSpecificationswillresultinjudgesrecordingzerofortheloadsupported.

4.8 NotestoTeamMentorsWorkonallphasesoftheBalsaBridgeprojectshallbedonebythestudents.Mentorassistanceistobelimitedto:

• Mentoring• Basicguidanceofthestudents• Teachingengineering,mathematicalandscientificprinciplesapplicabletotheproject• Guidingstudentsinresearch• Assistingintheproductionofthereportandpreparationofthedrawings• Overseeingthemanufacturingstagesoftheproject

Guidanceshouldbeintheformofaskingquestions,(leadingquestionsifnecessary)topromotecreativethinkingbythestudentstoidentifythescientificandengineeringprinciplesinvolved.Encouragestudentstoconsultcrediblewebsitesandotherresourcestohelpwiththeproject.Encouragestudentstotestandimprovetheirdesigns.Agoodwaytobeginisforeachstudenttodesignand/orconstructaroughprototype,testitandmakeimprovements.

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