大跨橋上縱連板式軌道結(jié)構(gòu)受力分析與試驗(yàn)研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文大跨橋上縱連板式軌道結(jié)構(gòu)受力分析與試驗(yàn)研究姓名：朱穎申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：道路與鐵道工程指導(dǎo)教師：劉學(xué)毅20070601西南交通大學(xué)碩士研究生學(xué)位論文第1I頁AbstractWiththeconstructionofpassengerradlwayline，therewillbeagreatdealofball如tlesstrackbuiltonbridgesThenewBeibeiJialin90iangRi

2、veristhefirstbridgewhichadoptlongitudinalconnectedballasflesstrackItisthefirsttimetobuildlongitudinalconnectedballastlesstrackonsuchlongspanbridgeinonrcountryevenintheworldandsomedesignconcepts，designmethods，materialsale

3、innovativelyusedTherefore，ithasvitalsignificanceforconsummatingthedesignmethodtoanalyzethetheoreticcalculationandstudytheexperimentationTeseachthelongitudinalinteractionbetweentrackandbridge，acalculationalmodelwithrail—s

4、labbridgewasestablishedbytheSllllctureanalysissofhearANSYS，andwithwitchtemperatureforce，brakingpowerruptureforceoftherail—slab—bridgesystemwascaculatedThecalculationalresultsshowthattemperatureforceisthekeyloadoflongitud

5、inalconnectedeballastlesstrackSecondlythestaticexperimentoftheballastlesstrackWasdiscussedThestaticexperimentconsiStsoftemperatureforceofthebaseslab，therelativedisplacementbetweenbaseandbridge，theforceoftherestrictdadoan

6、dthebridgeslabconnectedfranaeworkTheresultsindicatedthatvariationlawofthetestitemaboveWasbasicallythesame，theyallaugmentedasthetemperatureincreasesLastlythestaticexperimentoftheballastlesstrackwasalsodiscussedThedynamice