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- W2592821557 abstract "This paper describes a method for load rating ofprestressed box beam (PSBB) bridges based on their dynamic responsecollected using wireless sensor networks (WSNs). Although thepercentage of deficient bridges in the United States has beendeclining slowly, a significant portion is still closed to trafficor posted with load restrictions. An accurate load rating ofbridges is very expensive; therefore, new tools for quick,efficient and response-based load rating of bridges will save timeand money. The hypothesis is based on the assumption that thehealth of a bridge is associated with its vibration signaturesunder vehicular loads. Two WSNs were deployed on a 25-year old PSBBbridge under trucks with variable loads and speeds for collectingreal-time dynamic response at the current condition. Dynamicsimulations of three dimensional finite element models of a bridgewere performed to acquire its dynamic response under vehicularloads at its newest condition right after construction. The bridgemodel was validated by field testing and numerical analysis. FastFourier Transform and peak-picking algorithms were used to findmaximum peak amplitudes and their corresponding frequencies. Thisinformation and the necessary bridge geometric parameters were usedto calculate the in-service stiffness of the bridge in order todevelop application software for load rating of bridges. Theapplication software can instantly calculate the load rating of aPSBB bridge by collecting its real time dynamic response undervehicular loads using WSNs. The research outcome and the softwarewill help reduce bridge maintenance costs and will increase publicsafety." @default.
- W2592821557 created "2017-03-16" @default.
- W2592821557 creator A5026088502 @default.
- W2592821557 date "2013-01-01" @default.
- W2592821557 modified "2023-09-27" @default.
- W2592821557 title "Bridge Load Rating Using Dynamic Response Collected Through Wireless Sensor Networks" @default.
- W2592821557 hasPublicationYear "2013" @default.
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