Monitoring and inspection of a 30 years old prestressed concrete bridge

• Type: Article in International Conference Proceedings Book
• Date: 2008

Authors

Mário Jorge Pimentel (Author) FEUP; José Santos (Author) FEUP; Joaquim Figueiras (Author) FEUP

Conference proceedings International

Title: IABMAS' 08 - 4th International Conference on Bridge Maintenance, Safety and Management

IABMAS’08 The Fourth International Conference on Bridge Maintenance, Safety and Management

Seoul, Korea, 13 a 17 de Julho de 2008

Scientific classification

CORDIS: Technological sciences > Engineering > Civil engineering > Structural engineering

Other information

Abstract (EN): In this work a 5 span prestressed concrete box girder bridge exhibiting cracking related pathologies is presented. Built in the late 70’s, this was the first bridge to be built by the balanced cantilever method in Portugal. A detailed non destructive inspection also revealed several prestressing ducts exhibiting corrosion signs, sustaining the assumption of corroded prestressing steel in the box-girder bottom slab. The bridge was monitored during a load test and during the 4 subsequent days under normal traffic and thermal actions. The obtained results are presented as well as the conclusions of a preliminary safety evaluation.

Language: Portuguese

Type (Professor's evaluation): Scientific