Energy Dissipation of Super-Long-Span Cable-Stayed Bridge Using Metal Alloy Brace

Chang Peng Liu; Xi Gang Zhang; Da Xing Zhou; Wei Ming Yan; Yan Jiang Chen

doi:10.4028/www.scientific.net/AMR.243-249.1947

Paper Titles

The 3D Stress Analysis of Arch Foot for a Through Tied Arch Bridge
p.1922

Application of Expansion Double Spherical Seismic Isolation Bearing in Seismic Design of Continuous Girder Bridges
p.1928

Determination of Cast-In Situ Section Lengths of Reinforced Concrete Arch Bridge in Arch Centering Method
p.1935

Mechanical Analysis of Deck Pavement of Curved Continuous Steel Box Girder
p.1941

Energy Dissipation of Super-Long-Span Cable-Stayed Bridge Using Metal Alloy Brace
p.1947

Study on Ultimate Load-Carrying Capacity of Long-Span Composite Girder Cable-Stayed Bridge with Three Pylons
p.1952

Applications of Modified Equivalent Load Method in the Possibility of the Transportation of Large Equipment
p.1957

Damage Detection of Self-Anchored Suspension Bridge Based on Neural Network Model and Genetic-Simulated Annealing Algorithm
p.1963

Vertical Load-Carrying Natural Frequency of Railway Double-Track Steel Truss Continuous Bridge
p.1968

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 243-249Energy Dissipation of Super-Long-Span Cable-Stayed...

Energy Dissipation of Super-Long-Span Cable-Stayed Bridge Using Metal Alloy Brace

Abstract:

For a super-long-span cable-stayed bridge, it is often required that the main tower be essentially elastic under a strong earthquake. Therefore, a seismic isolation structural system is often used to reduce the seismic response. Since the seismic displacement at the end of the deck may severely exceed the allowance, the elastic link device and viscous damper are often employed to control the displacement. In this article, a new damper (Metal Alloy Brace) is used to achieve this goal. Under the frequently occurred earthquake excitation, MAB’s hysteretic curve is plump, so the structural deformation is reduced. Under rare earthquake excitation, MAB can supply so big stiffness that the structural deformation is limited, and the damper will also dissipate much energy. And the damper has no problem with leakage and metamorphism. So, the prospect of MAB is brightening.