PSI - Issue 5

Tiago Mendonça et al. / Procedia Structural Integrity 5 (2017) 48–54 Mafalda Monteiro et al./ Structural Integrity Procedia 00 (2017) 000 – 000

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The anomalies and structural deficiencies of these bridges were of such a magnitude that the strengthening and the repair works temporarily conditioned and interdicted road and pedestrian traffic.

Fig. 3. Main anomalies observed in the 3 bridges: a) corrosion in joints b) buckling of flanges c) rust bags between rivets d) loss of section due to corrosion e) sliding of lead plates in external pre-stress cells, f) collision of vehicles and objects g) corrosion and misalignment of bearings h) carbonation of concrete and fall of the covering layer exposing corroded reinforcement i) expansion joint non-watertight, i) inoperative utilities, k) cracks on masonry elements.