Title

Experimental Study of Seismic Mitigation of a Large-Span Cable-Stayed Bridge with Elastic Cables by Shaking Table Test

Publication Name

Practice Periodical on Structural Design and Construction

Abstract

Elastic cables have the advantages of desirable seismic mitigation effect, low cost, and convenient installation, and have been used widely in low-To-mid-span bridges. However, their utilization in long-span cable-stayed bridges has been limited. To study the effect of elastic cable on the seismic response mitigation of long-span cable-stayed bridges, an experimental model (half-bridge model) with a geometric similarity ratio of 1a40 was established. Both the semifloating system and the elastic restraint system were considered, and the seismic responses of the two systems under earthquake excitation were tested on the shaking table. The results demonstrated the seismic mitigation effect of the elastic restraint system, which is dependent on the characteristics of the seismic wave. The mechanism of the seismic response mitigation of the long-span cable-stayed bridge with longitudinal elastic restraint was discussed.

Open Access Status

This publication is not available as open access

Volume

26

Issue

2

Article Number

04021006

Funding Number

2017J01698

Funding Sponsor

Fuzhou Science and Technology Bureau

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