Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic Response and Earthquake Mitigation Optimal Analysis of Self-Anchored Suspension Bridge
This paper established a spatial nonlinear finite element model based on the earthquake dynamic equation and the seismic response of a self-anchored suspension bridge is calculated. Taking the pylon bottom force as objective function, optimization theory is used to obtain the viscous damper parameters. Seismic responses of viscous dampers in different positions are also discussed. The results show that pylon bottom moment is 117492.0KN•m in earthquake and it is a key factor for bridge design. The best parameters of viscous dampers can be obtained using optimization theory and the calculating work reduced largely. Longitudinal displacement of the girder reduced 83% and the pylon bottom longitudinal moment reduced 62% if install viscous damper with appropriate parameters. The positions of dampers installed affect the seismic response largely, the variety of force and displacement in the structure must be fully considered.
Seismic Response and Earthquake Mitigation Optimal Analysis of Self-Anchored Suspension Bridge
This paper established a spatial nonlinear finite element model based on the earthquake dynamic equation and the seismic response of a self-anchored suspension bridge is calculated. Taking the pylon bottom force as objective function, optimization theory is used to obtain the viscous damper parameters. Seismic responses of viscous dampers in different positions are also discussed. The results show that pylon bottom moment is 117492.0KN•m in earthquake and it is a key factor for bridge design. The best parameters of viscous dampers can be obtained using optimization theory and the calculating work reduced largely. Longitudinal displacement of the girder reduced 83% and the pylon bottom longitudinal moment reduced 62% if install viscous damper with appropriate parameters. The positions of dampers installed affect the seismic response largely, the variety of force and displacement in the structure must be fully considered.
Seismic Response and Earthquake Mitigation Optimal Analysis of Self-Anchored Suspension Bridge
Applied Mechanics and Materials ; 178-181 ; 2378-2382
14.05.2012
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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