黃河勝利大橋的損傷識(shí)別研究.pdf

1、大連理工大學(xué)碩士學(xué)位論文黃河勝利大橋的損傷識(shí)別研究姓名：姜愛(ài)玲申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：防災(zāi)減災(zāi)工程及防護(hù)工程指導(dǎo)教師：周晶20060616黃河勝利大橋的損傷識(shí)別研究StudyonDamageDetectionofShengliYeUowRiverBridgeAbstractWithmeexpeditiousdevelopmentofourcivil讎amcprojects，plentyofoversizeandnoVelbridgesh

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8、scarriedoutTheneXibilityofthestructure、vouldbechangedifthescmcturedamaged。Sothe10cationandthedegreeofthed蛐agedstmcturecaIlbeidemifiedduetothevariationsofnexibi工itymatrixInthisp印erwesetupthemethodsofdanlagedetectionbasedo

9、ntheflexibilitvdif詫renceandthenexibilitvcunr柵eNumericalsimulationresllltsofsteelbeamdemonstratethatthismemodisc印ableoflocatingandquamifyingsmlcturaldamageBesides，theidenti矗cationofmultipledamagedlocationsinstructI】：resis

10、alsostIldied，Wifh也emeritsofitss打ongnonlinearm印pingability，anti—interfhencec印abilit)ra11draDidcomDutation，artincialneuralnetwork，whichisusedintheidemifkationofstructuraldamagebasedonvibration，becomingmorepopularlyHoweVer，