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Volume 13
Issue 16
10.3390/app13169387
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Article

Seismic Reduction Analysis of Super-Long Span Suspension Bridge with Lattice Composite Tower and Damping System: A Case of Study for Qiongzhou Strait Bridge

by
Yan Zheng
1,
Yimin Wang
2,
Pu Zhang
2,3 and
Suchao Li
2,3,*
1
College of Computer Science and Technology, Heilongjiang Institute of Technology, Harbin 150050, China
2
School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
3
Department of Civil Engineering, Harbin Institute of Technology at Weihai, Weinhai 264209, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2023, 13(16), 9387; https://doi.org/10.3390/app13169387
Submission received: 23 June 2023 / Revised: 6 August 2023 / Accepted: 16 August 2023 / Published: 18 August 2023
(This article belongs to the Special Issue Seismic Performance of Long-Span Bridges Subjected to Near/Cross Fault Earthquake: Analysis, Design and Assessment)
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Abstract

In this paper, we proposed a lattice composite tower damping system to reduce the seismic response of super-long-span suspension bridges. Taking the QiongZhou strait bridge as a case study, we evaluated seismic performances through a finite element analysis (FEA) and shaking-table tests. First, the seismic responses of a super-long-span suspension bridge with or without a lattice composite tower to far-fault and near-fault earthquakes were analyzed and compared. The influence of the lattice composite tower on the dynamic characteristics and seismic performance was then investigated using shaking-table tests. Finally, the influences of different damping systems on the seismic response were evaluated, considering factors such as the damper type, damper arrangement scheme and design parameters. The results indicated that lattice composite tower could significantly increase the seismic performance of super-long span suspension bridge, while the optimal damping system could markedly improve the energy dissipation ability of whole system. Subsequently, this could provide references to enhance the seismic safety of the super-long span suspension bridge under strong earthquakes.
Keywords: lattice composite tower; damping system; super-long span suspension bridge; near-fault ground motion lattice composite tower; damping system; super-long span suspension bridge; near-fault ground motion

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MDPI and ACS Style

Zheng, Y.; Wang, Y.; Zhang, P.; Li, S. Seismic Reduction Analysis of Super-Long Span Suspension Bridge with Lattice Composite Tower and Damping System: A Case of Study for Qiongzhou Strait Bridge. Appl. Sci. 2023, 13, 9387. https://doi.org/10.3390/app13169387

AMA Style

Zheng Y, Wang Y, Zhang P, Li S. Seismic Reduction Analysis of Super-Long Span Suspension Bridge with Lattice Composite Tower and Damping System: A Case of Study for Qiongzhou Strait Bridge. Applied Sciences. 2023; 13(16):9387. https://doi.org/10.3390/app13169387

Chicago/Turabian Style

Zheng, Yan, Yimin Wang, Pu Zhang, and Suchao Li. 2023. "Seismic Reduction Analysis of Super-Long Span Suspension Bridge with Lattice Composite Tower and Damping System: A Case of Study for Qiongzhou Strait Bridge" Applied Sciences 13, no. 16: 9387. https://doi.org/10.3390/app13169387

APA Style

Zheng, Y., Wang, Y., Zhang, P., & Li, S. (2023). Seismic Reduction Analysis of Super-Long Span Suspension Bridge with Lattice Composite Tower and Damping System: A Case of Study for Qiongzhou Strait Bridge. Applied Sciences, 13(16), 9387. https://doi.org/10.3390/app13169387

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