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Structural Responses Estimation of Cable-Stayed Bridge from Limited Number of Multi-Response Dataopen access

Authors
Byun, NamjuLee, JeonghwaWon, Joo-YoungKang, Young-Jong
Issue Date
5월-2022
Publisher
MDPI
Keywords
cable-stayed bridge; multi-response data; deformed shape; member internal force; SRALMR
Citation
SENSORS, v.22, no.10
Indexed
SCIE
SCOPUS
Journal Title
SENSORS
Volume
22
Number
10
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/143083
DOI
10.3390/s22103745
ISSN
1424-8220
Abstract
A cable-stayed bridge is widely adopted to construct long-span bridges. The deformation of cable-stayed bridges is relatively larger than that of conventional bridges, such as beam and truss types. Therefore, studies regarding the monitoring systems for cable-stayed bridges have been conducted to evaluate the performance of bridges based on measurement data. However, most studies required sufficient measurement data for evaluation and just focused on the local response estimation. To overcome these limitations, Structural Responses Analysis using a Limited amount of Multi-Response data (SRALMR) was recently proposed and validated with the beam and truss model that has a simple structural behavior. In this research, the structural responses of a cable-stayed bridge were analyzed using SRALMR. The deformed shape and member internal forces were estimated using a limited amount of displacement, slope, and strain data. Target structural responses were determined by applying four load cases to the numerical model. In addition, pre-analysis for initial shape analysis was conducted to determine the initial equilibrium state, minimizing the deformation under dead loads. Finally, the performance of SRALMR for cable-stayed bridges was analyzed according to the combination and number of response data.
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Kang, Young Jong
공과대학 (건축사회환경공학부)
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