Abstract
Abstract The vibration serviceability assessment of footbridges under pedestrian traffic requires a probabilistic approach considering the uncertainty in the dynamic behavior of the structure and t...
Highlights
In civil engineering, the increasing strength of new materials, the economic demand of efficiency, and esthetic requirements stimulate the design of lightweight, slender, and, vibrationsensitive structures (Ney and Poulissen 2014)
The power spectral density (PSD) function of the modal load and the standard deviation of the dynamic response is estimated (1) numerically based on a large number of msim = 104 Monte Carlo (MC) simulations and (2) by the simplified expressions proposed in section “Spectral Approach”: Eq (7) for the modal load and Eqs. (27), (19), (20), and (26) for the estimation of the dynamic response
The numerical verification process first considers the special case of single-harmonic excitation and singlemode structural dynamic response
Summary
The increasing strength of new materials, the economic demand of efficiency, and esthetic requirements stimulate the design of lightweight, slender, and, vibrationsensitive structures (Ney and Poulissen 2014). Piccardo and Tubino (2012) proposed a closed-form expression for the variance and the maximum value of the structural response to unrestricted pedestrian traffic due to the fundamental harmonic of the walking load and considering only the resonant contribution of a bending mode of a footbridge.
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