The origins and development of digital twin technology are described by tracing the evolution of"twinning"technology through to digital twin technology.The definition and application status of digital twin technology are summarized by some research institutions at home and abroad.Given the technological advantages of Digital Twin technology in industries such as manufacturing,aerospace,and healthcare,and the relatively limited application in bridge structures,the concept of Bridge Digital Twin(BDT)was proposed.The study explores the feasibility of constructing BDT,focusing on three necessary elements:the digital information of the bridge body design,the response of the digital information during the service period and the link supporting the digital information interaction between the twin body and the body.The paper further describes the application prospects of this emerging technology in the full lifecycle of service bridges.
Bridge entityBridge digital twinFull life cycleDigital informationReal timeInteractionPrediction