Monitoring Wind-Induced Vibrations/Stresses in a High Mast Lighting Tower (TR-518) Monitoring Wind-Induced Vibrations/Stresses in a High Mast Lighting Tower (TR-518)

Research Project

divider

Monitoring Wind-Induced Vibrations/Stresses in a High Mast Lighting Tower (TR-518)

Crane lifts person to work on high mast tower

Working on the high mast tower.

Researcher(s)

Principal investigator: Terry Wipf, 515-294-9501, tjwipf@iastate.edu (project list)

Co-principal investigators:

Other authors: Byung-lK Chang

Student researcher: Byung-Ik Chang

Project status

Completed

Start date: 07/01/04
End date: 12/31/05

Sponsor(s)/partner(s)

Sponsor(s):Iowa Department of Transportation
Iowa Highway Research Board
Robert Dexter & Subconsultants

About the research

Abstract:

The objective of this research is to collect long-term behavior information on the performance of one of the eight high-mast lighting towers in the I35/US18 interchange near Clear Lake, IA for the purpose of validating assumptions made by others in an analytical investigation of these and similar towers. The research will consist of three primary tasks. Task 1 will be to design the long-term monitoring system needed to collect the required information. This system will include strain sensors, vibration sensors, wind speed sensors, and video recording equipment. The system will be designed such that data can be collected and transmitted remotely to all interested parties. Task 2 will be to install and maintain the above system for a period of one year. Task 3 will be to determine the natural frequencies and damping characteristics of about nine towers. This will be accomplished by installing a sensor on the towers and then vibrating the pole manually.

2711 S. Loop Drive, Suite 4700, Ames, Iowa 50010-8664
Phone: 515-294-9501 ~ Fax: 515-294-0467
The Bridge Engineering Center is administered by Iowa State University's Institute for Transportation.

Bridge Engineering Center logo

Timber Bridge Program Structural Health Monitoring Current Projects Completed Projects About BEC Staff Students Related Links

Iowa State University logo and link