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超大跨空间钢管拱桁架屋面太阳能发电功能及其强震下弹塑性性能研究的中期报告.docx

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超大跨空间钢管拱桁架屋面太阳能发电功能及其强震下弹塑性性能研究的中期报告 IntroductoryRemarks: Thetaskofthisreportistopresentthefindingsfromthemid-termresearchonthesolarpowergenerationcapabilityandearthquakebehaviorofalarge-spanspacesteelpipearchtrussroof.Thisprojectaimstoexaminethestructuraldesign,constructionprocess,anddurabilityofthesolarpowersysteminahighseismicrisklocation.Thisreportprovidesasummaryoftheprogressmadesofarinthisresearch. Background: Theneedtoreducepollution,decreasedependenceonfossilfuels,anddeveloprenewablesourcesofenergyhaspropelledglobalinterestinsolarpower.Large-scalesolarpowergenerationsystemsrequirevastspaces,andconstructionofsuitablefacilitiesinflatterrainisnotalwayspossiblegivenlandconstraints.Thesteelpipearchtrussroof,whichisalarge-spanspacestructure,hassufficientstructuralcapacitytosustaintheheavyphotovoltaicmodulesandwithstandstrongseismicforces.Thisstudy,therefore,investigatesthepossibilityofconstructingasolarpowergenerationsystemonsuchroofsinhighseismicriskareas. Methodology: Theresearchmethodologyinvolvesthreecorestages:design,testing,anddataanalysis.Duringthedesignphase,thesteelpipearchtrussroofwasmodeled,andthesolarpanelswerestructurallydesignedforoptimalperformance.TheroofdesignwasbasedonChineseNationalStandards(GB50017-2003)anddesigncodesforsteelstructuresunderseismicloads(GB50011-2010).Afterdesigningthemodel,seismicresistanceanddeformationanalysiswereconductedusingthetimehistorymethod.Modalanalysiswasalsodonetodeterminethenaturalfrequenciesoftheroofsystem. Thetestingphaseinvolvesthefabricationoftestspecimenstoevaluatethestrengthanddeformationcapacityofthesteelpipearchtrussroofstructure.Thetestswereconductedinthelaboratoryundercyclicloading,simulatingearthquakes.Theresponsespectrummethodwasusedtoconstructthetestingwave,andaccelerometerswereusedtomeasureandrecordtheresponses.Thestudyalsosimulatedtheimpactofwindloadsandtemperaturechangesontheroofstructure. Thedataanalysisphaseinvolvesinterpretingandanalyzingtheresultsobtainedfromthedesignandtestingphases.Theresearche