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Izmit Bay Suspension Bridge-Aerodynamic Stability of Catwalk

 Izmit Bay Suspension Bridge-Aerodynamic Stability of Catwalk
Autor(en): , , , ,
Beitrag für IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014, veröffentlicht in , S. 2041-2048
DOI: 10.2749/222137814814068544
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The catwalk system for the Izmit Bay Suspension Bridge designed without storm system has been assessed for its aero-elastic stability carefully. The behavior of the catwalk under the design wind s...
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Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Engineering for Progress, Nature and People, Madrid, Spain, 3-5 September 2014
Veröffentlicht in:
Seite(n): 2041-2048 Anzahl der Seiten (im PDF): 8
Seite(n): 2041-2048
Anzahl der Seiten (im PDF): 8
Jahr: 2014
DOI: 10.2749/222137814814068544
Abstrakt:

The catwalk system for the Izmit Bay Suspension Bridge designed without storm system has been assessed for its aero-elastic stability carefully. The behavior of the catwalk under the design wind speed has been evaluated by means of a nonlinear numerical analysis using a space frame numerical model with the aerodynamic properties obtained in a wind tunnel tests using a section model of the catwalk of a scale of 1/4. The wind tunnel tests using a full aero-elastic model of the catwalk system for a shorter main span suspension bridge but with the same catwalk section as for the Izmit Bay Suspension Bridge have been conducted. The tests aimed to investigate the wind-induced response under the yaw wind and to prove the nonlinear numerical analysis employed for investigation of the behavior of the catwalk system of the Izmit Bay Suspension Bridge. It has been confirmed that the static and dynamic responses of the catwalk of the Izmit Bay Suspension Bridge are well within the permissible capacity under the design wind speed.

Stichwörter:
Windkanaluntersuchung

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