Roads and Bridges - Drogi i Mosty
13, 2, 2014, 167-180

Assessment of load bearing capacity of reinforced concrete bridge on the base of NDT results

Łukasz Topczewski Mail
Road and Bridge Research Institute, Warsaw
Juliusz Cieśla Mail
Road and Bridge Research Institute, Warsaw

Abstract

The article presents the process of assessment of load bearing capacity of the existing bridge as well as determination of scope and method of its renovation on the basis of complex non-destructive testing and material examinations. The assessment of load capacity of old bridges, used for decades, is usually difficult due to several reasons: inaccessible technical documentation, loss of the structure history, unknown regulations used during the bridge designing. Moreover, physical properties of materials have changed and structural damages appeared during use, what contributes to the overall process of structure deterioration. In such situation an advanced non-destructive methods of structural testing and material examinations are required to determine the type of the used materials, their properties as well as their arrangement inside a structure. In the example shown, the GPR and profometer methods are used in order to determine the amount of reinforcement inside the bridge slab and the impact-echo and pull-out methods were used for determination of its thickness and the concrete class.

Keywords


bridge, load bearing capacity, modeling of structure, NDT

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References


American Association of State Highway and Transportation Officials (AASHTO), Manual for Bridge Evaluation, 2nd Edition, with 2011 and 2013 Interim Revisions, Washington, DC

Instrukcje przeprowadzania przeglądów drogowych obiektów inżynierskich stanowiące załączniki do Zarządzenia nr 14 Generalnego Dyrektora Dróg Krajowych i Autostrad z dnia 7 lipca 2005 r. w sprawie wprowadzenia instrukcji przeprowadzania przeglądów drogowych obiektów inżynierskich (wraz ze zmianami – Zarządzenie nr 5 Generalnego Dyrektora Dróg Krajowych i Autostrad z dnia 4 lutego 2011 r. oraz Zarządzenie nr 27 Generalnego Dyrektora Dróg Krajowych i Autostrad z dnia 13 kwietnia 2011 r.)

Bergmeister K., Aktan A.E., Bucher Chr., Dorfmann L., Fehling E., Frey R.P., Geier R., Huth O., Inaudi D., Maier J.E., Santa U., Schwesinger P., Slowik V., Wenzel H.: Monitoring and safety evaluation of existing concrete structures. State of the art report, fib Bulletin No. 22, Fédération International du Béton, Lausanne 2003

Feltrin G.(Ed.): Monitoring Guidelines for Railway Bridges. Sustainable Bridges European Project, Report Deliverable D5.2, 2007

Guidebook on Non-Destructive Testing of Concrete Structures. International Atomic Energy Agency (IAEA), Training Course Series 17, Vienna, 2002

Krause M., Barmann M., Frielinghaus R., Kretzschmar F., Kroggel O., Langenberg K.J., Maierhofer C., Muller W., Neisecke J., Schickert M. Schmitz V., Wiggenhauser H., Wollbold F.: Comparison of pulse-echo methods for testing concrete. NDT&E International, 30, 4, 1997, 195-204

Mitchell T.M.: Radioactive/Nuclear Methods, CRC Handbook on Nondestructive Testing of Concrete, Second Edition, edited by V.M. Malhotra and N.J. Carino. CRC Press, Florida, 2004

PN-58/B-03261 Betonowe i żelbetowe konstrukcje mostowe. Obliczenia statyczne i projektowanie

Topczewski Ł.: Guidelines for the application of ground penetrating radar (GPR) to inspection of concrete bridges – reflection mode. Roads and Bridges - Drogi i Mosty, 11, 4, 2012, 329-343

Malhorta V.M., Carino N.J. (eds.): CRC Handbook on nondestructive testing of concrete. CRC Press, 1991

Załącznik nr 2 do Zarządzenia nr 11 z dnia 03.12.1998 roku Generalnego Dyrektora Dróg Publicznych z dnia 03.12.1998 „Zalecenia dotyczące oceny jakości betonu “in-situ” w istniejących konstrukcjach obiektów mostowych”. IBDiM, 1998

PN-EN 206-1:2003 Beton – Część 1: Wymagania, właściwości, produkcja i zgodność

PN-85/S-10030 Obiekty mostowe. Obciążenia

PN-91/S-10042 Obiekty mostowe. Konstrukcje betonowe, żelbetowe i sprężone. Projektowanie


Assessment of load bearing capacity of reinforced concrete bridge on the base of NDT results

  
Topczewski, Łukasz; Cieśla, Juliusz. Assessment of load bearing capacity of reinforced concrete bridge on the base of NDT results. Roads and Bridges - Drogi i Mosty, [S.l.], v. 13, n. 2, p. 167-180 , apr. 2014. ISSN 2449-769X. Available at: <>. Date accessed: 28 Mar. 2024. doi:http://dx.doi.org/10.7409/rabdim.014.012.