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Nonlinear Vibration Characteristics of Bridge Deck Section Models in Still Air
Publisher: American Society of Civil Engineers
Abstract: The mechanical stiffness and damping coefficients of a spring-suspended deck section model in still air are conventionally assumed to be constants and can be extracted through free decay vibrations. The extracted stiffness ...
Symplectic Method for Natural Modes of Beams Resting on Elastic Foundations
Publisher: American Society of Civil Engineers
Abstract: This paper proposes a new symplectic method for obtaining the natural frequencies and modes of beams resting on elastic foundations. A generalized Hamiltonian functional is first derived via the Lagrange multiplier method, ...
A Novel Tuned Mass Damper with Negative Stiffness Mechanism for Low-Frequency Vertical Vibration Control
Publisher: American Society of Civil Engineers
Abstract: AbstractConventional tuned mass dampers (TMDs) require substantial static displacement when
designed for low-frequency vertical vibration control, which poses major challenges
in applications where installation space and ...
Numerical Simulation of Aerostatic Force Coefficients of Bridge Decks Using Continuous Torsional Motion Technique
Publisher: American Society of Civil Engineers
Abstract: A low-frequency continuous torsional motion technique (CTMT) is presented to efficiently extract the aerostatic force coefficients (AFCs) of bridge decks. In contrast to the conventional numerical simulations at a series ...
Measurement of Wind Effects on a Kilometer-Level Cable-Stayed Bridge during Typhoon Haikui
Publisher: American Society of Civil Engineers
Abstract: Because of the significant position of long-span cable-supported bridges in land transportation, the typhoon wind effects on these slender structures attract intensive attention in engineering communities. This paper ...
Three-Dimensional Flutter Analysis of Aeroelastic Models of Bridge Decks Based on Large-Eddy Simulations
Publisher: American Society of Civil Engineers
Abstract: AbstractIn light of the limitations of traditional methods based on a sectional deck model
in predicting full-bridge flutter responses, a fluid–structure-interaction simulation
method for directly solving the three-dimensional ...
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