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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, Major Projects
FHWA Topics: 
Roads and Bridges--Design; Roads and Bridges--Major Projects; Roads and Bridges--Structures
TRT Terms: 
Bridges; Aerodynamics; Cable Stayed Bridges; Long Span Bridges; Wind Tunnels; Testing; Mechanical Vibration; Bridge Cables
FHWA Discipline: 
Design, Environment, Structures
TRB 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 Description: 

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

Deliverable Name: 
Research Report
Deliverable Type: 
Research report or guidelines
Deliverable Description: 
The deliverable will consist of one or several research reports, as appropriate, to document wind tunnel testing. The influence of aerodynamic surface treatment, wind turbulence, pipe roundness, and cable orientation on cable stability will be discussed.