Tested versus code capacity of existing bridges - Three examples

Abstract

This paper presents the results from three tests to failure of different types of bridges: a two span reinforced concrete railway trough bridge; a five-span prestessed concrete beam bridge; and a one span metal railway truss bridge. The results show that the capacity of the structures are underestimated by current standards, while numerical analysis combined with material testing can provide more accurate results. Some examples are also presented on how deficiencies in capacity can be mitigated using fiber reinforced polymer strengthening systems.

More Realistic Codes for Existing Bridges

“…This paper compiles the experience and results from tests to failure of three different types of bridges. The paper is an update of an earlier paper [4]. The results are presented with focus on a comparison between the tested capacity and existing methods for assessment based on analytical models from standards and codes.…”