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Wind Buffeting of Cable-Stayed Bridges During Construction

by Peter A. Irwin, Rowan Williams Davies & Irwin, Inc, Guelph, Ont, Canada,



Document Type: Proceeding Paper

Part of: Bridges and Transmission Line Structures

Abstract:

Some of the dominant loadings on a cable-stayed bridge during construction are a result of the non-uniform vertical and horizontal gust forces on the deck and the associated dynamic response of the structure. This paper gives theoretical expressions, derived from buffeting theory, for calculating these forces and compares the results with aeroelastic model data for the 465m main span Annacis Island Bridge, Vancouver. The expressions are in a form that can be relatively easily used and they are put forward as a design tool to examine wind loading during development of the construction sequence.

Subject Headings: Cable stayed bridges | Infrastructure construction | Cables | Wind loads | Wind gusts | Wind forces | Bridge design | Vancouver | British Columbia | Canada

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