A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tacoma Narrows 50 years later—wind engineering investigations for parallel bridges
Wind engineering investigation of the Parallel Tacoma Bridges was performed. Half a century after the historic collapse of the original Tacoma Narrows Bridge, aerodynamic instability was again the principal concern. Since it was proposed to build a new parallel bridge only 61 m from the existing bridge, aerodynamic interference effects between the two structures were carefully examined. Initially the local wind climate and the bridges’ wind exposure were examined. Sectional models and full aeroelastic models of both bridges were constructed and tested to evaluate aerodynamic stability and wind loading. In addition, full-scale measurements were undertaken on the existing Tacoma Bridge for identification of the natural frequencies of the lowest lateral, vertical, and torsional modes. The study program established that both bridges would be aerodynamically stable and provided detailed wind load distributions for structural design.
Tacoma Narrows 50 years later—wind engineering investigations for parallel bridges
Wind engineering investigation of the Parallel Tacoma Bridges was performed. Half a century after the historic collapse of the original Tacoma Narrows Bridge, aerodynamic instability was again the principal concern. Since it was proposed to build a new parallel bridge only 61 m from the existing bridge, aerodynamic interference effects between the two structures were carefully examined. Initially the local wind climate and the bridges’ wind exposure were examined. Sectional models and full aeroelastic models of both bridges were constructed and tested to evaluate aerodynamic stability and wind loading. In addition, full-scale measurements were undertaken on the existing Tacoma Bridge for identification of the natural frequencies of the lowest lateral, vertical, and torsional modes. The study program established that both bridges would be aerodynamically stable and provided detailed wind load distributions for structural design.
Tacoma Narrows 50 years later—wind engineering investigations for parallel bridges
Bridge Structures ; 1 ; 3-17
2005-01-01
15 pages
Article (Journal)
Electronic Resource
English
Wind tunnel testing of the parallel Tacoma Narrows Bridges
| British Library Conference Proceedings | 2004
Aerodynamics of the Tacoma Narrows Bridge - 60 Years Later
| British Library Online Contents | 2000
| Engineering Index Backfile | 1940
Unusual design problems -- Second Tacoma narrows bridges
| Engineering Index Backfile | 1947
| Engineering Index Backfile | 1940