Assessment of Three Critically ASR-Deteriorated Bridges
摘要
As part of the Norwegian research project MESLA (Management and Extension of Service Life of infrastructures affected by Alkali-silica reactions (ASR)), three case studies are presented to illustrate various aspects of ASR deterioration in bridges: (1) Damaged bearings and support structures, (2) material degradation, (3) additional moments and their consequences. The three included bridges are a long bridge consisting of a suspension bridge and two reinforced concrete viaducts, a railway bridge which is a steel truss girder supported by slender reinforced concrete piers, and a 200 m culturally protected beam bridge.