Abstract

As one of the important forms of modern bridge structure, the research on the seismic performance of multi-tower cable-stayed bridge is of great significance to the safety and durability of bridge engineering. In this paper, the research status of seismic performance of multi-tower cable-stayed bridges is reviewed from three aspects: experimental research, numerical analysis and theoretical research. The methods of improving seismic performance through structural optimization and the technical means of improving seismic performance through constraint system are discussed. The purpose of this paper is to summarize the existing research results, identify the existing problems, and propose that future research should focus on the application of new damping equipment and the discussion of hybrid control system, so as to provide reference for the seismic design of multi-tower cable-stayed bridge.

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