Seismic performance of continuous curved girder bridge with high pier in Maduo earthquake and characteristic analysis
Multidiscipline Modeling in Materials and Structures
ISSN: 1573-6105
Article publication date: 27 September 2022
Issue publication date: 14 November 2022
Abstract
Purpose
The purpose of this study is to explore the seismic damage mechanism of the Dayemaling Bridge during the Maduo earthquake and discuss the seismic damage characteristics of the high-pier curved girder bridge.
Design/methodology/approach
In this study, the numerical simulation method is used to analyze the seismic response using synthetic near-field ground motion records.
Findings
The near-field ground motion of the Maduo earthquake has an obvious directional effect, it is more likely to cause bridge seismic damage. Considering the longitudinal slope of the bridge and adopting the continuous girder bridge form, the beam end displacement of the curved bridge can be effectively reduced, and the collision force of the block and the bending moment of the pier bottom are reduced, so the curved bridge with longitudinal slope is adopted.
Originality/value
Combined with the seismic damage phenomenon of bridges in real earthquakes, the seismic damage mechanism and vulnerability characteristics of high-pier curved girder bridges are discussed by the numerical simulation method, which provides technical support for the application of such bridges in high seismic intensity areas.
Keywords
Acknowledgements
This work was financially supported by the Scientific Research Fund of Institute of Engineering Mechanics, China Earthquake Administration (Grant No. 2021EEEVL0313 and 2019EEEVL0403) and the National Natural Science Foundation of China (Grant No. 51278471).
Data source note: The Institute of Engineering Mechanics, China Earthquake Administration provided data support for this study.
Citation
Huang, Y., Song, G. and Li, G. (2022), "Seismic performance of continuous curved girder bridge with high pier in Maduo earthquake and characteristic analysis", Multidiscipline Modeling in Materials and Structures, Vol. 18 No. 6, pp. 941-961. https://doi.org/10.1108/MMMS-06-2022-0114
Publisher
:Emerald Publishing Limited
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