公路塑鋼護(hù)欄的靜力實(shí)驗(yàn)及動(dòng)力性能研究.pdf

1、重慶大學(xué)碩士學(xué)位論文公路塑鋼護(hù)欄的靜力實(shí)驗(yàn)及動(dòng)力性能研究姓名：王林申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：崔佳楊文琦20051001英文摘要IIIABSTRACTWiththequickeconomicaldevelopmentinChinathehighwayconstructionisalsoboomingconsequentlythehighwaysafetybarriersasatrafficsafetymeanshavebe

2、enwidelyapplied.InEuropeUSAJapanthehighwaysafetybarriersarealwayssubjecttoalargeamountofImpacttestsmodulusanalysis.ButinChinaduetotighttestbudgetsomeotherreasonsthesafetybarriersstudieslagbehindtherelevantEuropeanAmerica

3、nJapanesecodeshavebeenfollowed.ItisofgreatsignificancetostudythehighwaysafetybarriersnowadayswhenthehighwayconstructionisfastgrowinginChina.Bycomparingthecurrentlyusedhighwaysafetybarriersthepaperidentifiesthemaindefects

4、ofwavedbeamsteelguardrailsthatareinwideuseproposesanewtypeofPlasticSteelsafetybarriersaccdingly.ByfiniteelementanalysisofthePlasticSteelsafetybarrierswavedbeamsafetybarrierswith20differentcrosssectionsthetwocrosssections

5、ofPlasticSteelsafetybarrierswithsimilarperfmancetothatofwavedbeamguardrailsareidentified.ThespecimensoftwoPVCsafetybarriershavebeendevelopedbymouldstaticstructuraltestshavebeenconducted.AsdemonstratedbythetestsPlasticSte

6、elsafetybarriersfeaturehigherfailureloadcapacitybettercompliancecosteffectivethanthewavedbeamguardrailssoitwouldbeagoodsubstitutionhavegreatmarketpotentiality.Keywds:HighwaySafetyBarriersPlasticSteelFiniteelementNonlinea