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Wind Effects on Bridge Stay Cables

Project Information

Project ID: 
FHWA-PROJ-10-0059
Project Status: 
Active
Start Date: 
Thursday, September 30, 2010
End Date: 
Tuesday, September 30, 2014
FHWA Program: 
Infrastructure
FHWA Subprogram: 
Structures
TRT Terms: 
Bridges; Aerodynamics; Cable Stayed Bridges; Long Span Bridges; Wind Tunnels; Testing; Mechanical Vibration; Bridge Cables
FHWA Discipline: 
Design, Environment, Structures
Subject Area: 
Bridges and other structures, Design, Environment

Contact Information

First Name: 
Ben
Last Name: 
Graybeal
Telephone: 
(202) 493-3122
Email Address: 
Team: 
Bridge Engineering Team
Office:
Office of Infrastructure Research and Development
Office Code: 
HRDI-40

Project Details

Project Abstract: 

This project is an extension of activities conducted under pooled fund study SPR-3(078) to address the very important problem of wind-induced large amplitude vibration of bridge stay cables. Research activities will focus on wind tunnel tests to further clarify the impact of helical fillets, High-Density Polyethylene (HDPE) pipe roundness, and wind turbulence on aerodynamic stability of stay cables.

Goals

The key objective of this project will be to perform wind tunnel tests on a full-scale section model of a typical bridge stay cable to evaluate the influence of wind turbulence, aerodynamic surface treatment, roundness, damping, and cable/wind orientation on cable stability.

Deliverables