Investigation of analytical modeling for long-span bridge flutter

Namini, Ahmad H.

doi:10.1016/0167-6105(92)90134-v

Cited by 2 publications

(2 citation statements)

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“…The models are acceptable for calculating critical flutter wind speeds of bluff bodies. On the basis of the models, researchers developed a series models for predicting critical flutter wind speed (Agar, 1989; Cunha-Filho et al, 2018; Ertveldt et al, 2014; Namini, 1992; Xu, 2014a, 2014b). Agar (1989) proposed a complex mode shape method to analyze flutter of bluff bodies.…”

Section: Introductionmentioning

confidence: 99%

“…The method can predict critical flutter wind speed through obtaining eigenvalues of asymmetric matrixes of equations of motion of flutter. Namini (1992) extended the determinant iteration method that is employed to flutter analysis of airfoil to analyze flutter of bridges. Ertveldt et al (2014) presented a frequency domain method to predict aeroelastic flutter, which can result in a major time saving to wind tunnel flutter testing.…”

Section: Introductionmentioning

confidence: 99%

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A predictive critical flutter wind speed modeling for long-span bridges

Lin

Wei

Liu

et al. 2020

Advances in Structural Engineering

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In this article, a two-dimensional Lighthill aerodynamic model is first extended to three-dimensional space, and then combined with the larger Von Karman plate deformation theory, a model for predicting the critical flutter wind speeds of long-span bridges in the primary design is proposed. The predictions of the presented model are compared to the results of wind tunnel tests for five long-span bridges with different main girder section forms. After that, based on the proposed model, the effects of width to span ratio and thickness to span ratio on the critical flutter wind speeds of long-span bridges are investigated. The results show that the differences between the proposed model and wind tunnel tests are only 7%–14%. Therefore, the presented model can assess the flutter wind speed in preliminary design stages of a bridge. The results also reveal that width to span ratios between 1/30 and 1/10 and thickness to span ratios between 1/300 and 1/100 are optimal for long-span bridges.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A predictive critical flutter wind speed modeling for long-span bridges

Lin

Wei

Liu

et al. 2020

Advances in Structural Engineering

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A coupled wind-vehicle-bridge system and its applications: a review

Cai¹,

Hu²,

Chen³

et al. 2015

Wind and Structures

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The performance of bridges under strong wind and traffic is of great importance to set the traveling speed limit or to make operational decisions for severe weather, such as controlling traffic or even closing the bridge. Meanwhile, the vehicle"s safety is highly concerned when it is running on bridges or highways under strong wind. During the past two decades, researchers have made significant contributions to the simulation of the wind-vehicle-bridge system and their interactive effects. This paper aims to provide a comprehensive review of the overall performance of the bridge and traffic system under strong wind, including bridge structures and vehicles, and the associated mitigation efforts.

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Investigation of analytical modeling for long-span bridge flutter

Cited by 2 publications

References 5 publications

A predictive critical flutter wind speed modeling for long-span bridges

A predictive critical flutter wind speed modeling for long-span bridges

A coupled wind-vehicle-bridge system and its applications: a review

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