Load Testing as Part of Bridge Management in Sweden

Proof Load Testing and the Future of Load Testing

Document identifier: oai:DiVA.org:ltu-76135
Access full text here:10.1201/9780429265969-11
Keyword: Engineering and Technology, Civil Engineering, Infrastructure Engineering, Teknik och teknologier, Samhällsbyggnadsteknik, Infrastrukturteknik, Load Testing, Bridges, Management, Sweden, Byggkonstruktion, Structural Engineering
Publication year: 2019
Relevant Sustainable Development Goals (SDGs):
SDG 11 Sustainable cities and communities
The SDG label(s) above have been assigned by OSDG.ai

Abstract:

Load testing of new and existing bridges was performed regularly in Sweden up to the 1960ies. It was then abandoned due to high costs versus little extra information obtained. Most bridges behaved well in the serviceability limit range and no knowledge of the ultimate limit stage could be obtained without destroying the bridge. At the same time the methods for calculating the capacity developed and new numerical methods were introduced. Detailed rules were given on how these methods should be used. Some decommissioned bridges were tested to their maximum capacity to be able to study their failure mechanisms and to calibrate the numerical methods. In this paper some examples are given on how allowable loads have increased over the years and of tests being performed. Nowadays, load testing may be on its way back, especially to test existing rural prestressed concrete bridges, where no design calculations have been retained

Authors

Lennart Elfgren

Luleå tekniska universitet; Byggkonstruktion och brand
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Björn Täljsten

Luleå tekniska universitet; Byggkonstruktion och brand
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Thomas Blanksvärd

Luleå tekniska universitet; Byggkonstruktion och brand
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