Download Bridge Aeroelasticity: Sensitivity Analysis and Optimum by J. A. Jurado, S. Hernández, A. Mosquera, Félix Nieto PDF

By J. A. Jurado, S. Hernández, A. Mosquera, Félix Nieto

ISBN-10: 184564056X

ISBN-13: 9781845640569

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Extra resources for Bridge Aeroelasticity: Sensitivity Analysis and Optimum Design

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The record for main span length held by the Golden Gate since 1937 would not be challenged until 1964, when the Verrazano Strait Bridge was opened in New York. This had a central span of 1298 m, although only a modest 18 m greater than that of the Golden Gate. 13. Its depth/span length ratio was thus 1/178, making it just slightly more slender than the previous record holder. The Verrazano Bridge only meant a small step towards greater span length and deck slenderness compared with the Golden Gate.

When the designing process is finished, a designer should think about the differences between the initial design and that finally produced by the optimization method. From this reflection, he should observe the changes produced and think which ones he was able to anticipate and which ones not. This will improve his skills as a designer, and we can see the optimization technique as a design course that a designer can take while he is performing his job. In summary, we are not trying to substitute a designer with these optimization techniques, which would be impossible because of the complexity of real problems, but rather intending to help a designer not to fall into false steps that can be very probable for a design with great complexity.

6 m edge, making its ratio of edge depth/main span length 1/100. Therefore, it has a less slender appearance than the Golden Gate. At first sight the bridge gives off an impression of robustness. So much care was given to its aerodynamic stability that, according to Gimsing[2], the critical wind speed value was 995 km/h, impossible to reach under natural conditions. The truss section of the deck shares the same sense of excessive dimensions observed in the New Tacoma Bridge. At the beginning of the 1960s, great suspension bridges were first being built in Europe.

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