Skip to Main Content
Timber bridge evaluation : a global nondestructive approach using impact generated FRFsAuthor(s): Angus Morison; C.D. Van Karsen; H.A. Evensen; J.B. Ligon; J.R. Erickson; R.J. Ross; J.W. Forsman
Source: Proceedings of the 20th International Modal Analysis Conference. Bethel, Conn. : Society for Experimental Mechanics, 2002: Pages 1567-1573
Publication Series: Miscellaneous Publication
PDF: Download Publication (245 KB)
DescriptionBridges require periodic inspections to ensure the safety of those using the structure. A visual inspection has historically been the most common form of investigation for timber bridges. This poses many problems when inspecting bridge timbers since often the damage is internal, leaving no visible signs of decay on the surface. Localized nondestructive evaluation (NDE) techniques have been developed to allow assessment of the internal parts of timber structural members. Testing an entire structure in this manner can be tedious and time consuming. Steel structures have long been tested from a global perspective, basing the assessment of health of the structure on modal parameters. This paper presents an effort to extend global testing methods, specifically impact testing, to timber bridges.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationMorison, Angus; Van Karsen, C.D.; Evensen, H.A.; Ligon, J.B.; Erickson, J.R.; Ross, R.J.; Forsman, J.W. 2002. Timber bridge evaluation : a global nondestructive approach using impact generated FRFs. Proceedings of the 20th International Modal Analysis Conference. Bethel, Conn. : Society for Experimental Mechanics, 2002: Pages 1567-1573
KeywordsTimber bridges, nondestructive testing, impact generated FRFs, frequency response functions
- Development of flexural vibration inspection techniques to rapidly assess the structural health of rural bridge systems
- Ground-Penetrating Radar Investigation of Salvaged Timber Girders from Bridges Along Route 66 in California
- Dynamic characteristics of timber bridges as a measure of structural integrity
XML: View XML