大跨度拱橋結(jié)構(gòu)減振控制研究.pdf

1、Y8S鑫5S3分類母篁她!寮緩一——重慶交道大學(xué)單位代確擘垮1061803270t07碩士學(xué)位論文三縫墨坐虹鰓迎壘塑i業(yè)旦鯉2ControlofLongspanArchBridgeStructure研究生姓名：塑焦導(dǎo)師姓名、職稱：韓西教授申請學(xué)位級別r亟一專業(yè)名稱：論文答辯日期學(xué)位授予單位結(jié)構(gòu)工程眷辯委員會j二帝：扇盤：堅(jiān)趲評1司人：王盛耋蹬壟女：!整羞墨2006年4月28日論文摘要ABSTRACTArchbridgeisacommon

2、structurethathasbeenwidelybuiltinournation(especiallyinthesoutheastregion)Andbecauseofthenewmaterialandtechnologythebridgebecomeslighterthedimensionslenderthespanlargeryetthetrafficincreases，whichmayresultsinthefatigueda

3、mageduetovibration，andmaketheresearchofvibrationmoresignificantAimedatresponsecharacteroflargespanreinforcedconcreteboxtypedarchbridgeandthepassivevibrationcontrol，themainstudiesareasfollows：(1)Throughreferingtodomestica

4、ndoverseasliteratures，thepricinpleandmethodofpassivedvibrationcontroloflarge—spanreinforcedconcreteboxtypedarchbridgesisstudied，and，thedesignpricinpleandtheprocesstechnologyofMTMD(MultiTunedMassDamper)havebeenresearchedi

5、nthetext(2)Studyofvibrationresponseoflarge—spanreinforcedconcretebox—typedarchbridgesByestablishingthefiniteelementmodalofarchbridgetestmodal，thenaturalvibrationcharacteroflarge—spanreinforcedcoBcreteboxtypedarchbridgesi

6、sstudied，themodalandtimemarchinganalysisismadeandthedynamicbehaviorsofbridgeanditsresponsecharacterunderrandomloadareanalyzed(3)Studyofvibrationcontroloflarge—spanarchbridgesbyTMD(’FunedMassDamper)andMTMDFirst，thecontrol

7、ledmodalisconfirmed，andthentakingthemeansquareresponseascontrolobjective，optimizationalparameterincludingoptimumfrequencyratio，dampingratio，erectionlocationandeffectivemassareobtainedFinallybythetimemarchinganalysis，thev

8、alidityofTMDandMTMDusedteducetheseismicresponseofthearchbridgeisverified(4)TestanalysisofvibrationcontrolofTMDandMTMDThetestmodelofJinshajiangTongYangBridgewithascaleof1：50isestablishedbyorganicmaterials，andaccordingtoth

9、edynamicresponseofthemodelunderrandom，impulsiveload，andwhitenoisemotivation，theTMDparametersareoptimizedBythecomparisonsofdynamicresponseofarchedbridgewithandwithoutTMDandMTMD，thevalidityofTMDandMTMDonarchedbridge’Svibra