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2003•PROCEEDINGS OF THE 10TH INTERNATIONAL CONFERENCE AND EXHIBITION - STRUCTURAL FAULTS AND REPAIR CONFERENCE 2003, HELD LONDON, JULY 2003 - CD ROMRequires access

FRP COMPOSITIES OR EXTERNAL PRESTRESSING IN BRIDGE STRENGTHENING - COMPARISON

Tomasz Siwowski

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Abstract

In the paper two modern bridge strengthening methods, i.e. FRP composites and external prestressing, were evaluated and compared. The comparison has been made for an existing reinforced concrete bridge, build in early 50's, which had to be strengthened due to heavy traffic. The detailed technical design with cost analysis for both solutions was the background for this case study. Some results of the technical and economical evaluation are discussed. It is considered that the optimal method of reinforced concrete bridge strengthening seems to be the use of composites in shear areas and prestressing cables in bending regions. For the covering abstract see ITRD E122906.

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What this paper is about

In the paper two modern bridge strengthening methods, i.e. FRP composites and external prestressing, were evaluated and compared. The comparison has been made for an existing reinforced concrete bridge, build in early 50's, which had to be strengthened due to heavy traffic. The detailed technical design with cost analysis for both solutions was the background for this case study. Some results of the technical and economical evaluation are discussed. It is considered that the optimal method of reinforced concrete bridge strengthening seems to be the use of composites in shear areas and prestressing cables in bending regions. For the covering abstract see ITRD E122906.

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Available abstract

In the paper two modern bridge strengthening methods, i.e. FRP composites and external prestressing, were evaluated and compared. The comparison has been made for an existing reinforced concrete bridge, build in early 50's, which had to be strengthened due to heavy traffic. The detailed technical design with cost analysis for both solutions was the background for this case study. Some results of the technical and economical evaluation are discussed. It is considered that the optimal method of reinforced concrete bridge strengthening seems to be the use of composites in shear areas and prestressing cables in bending regions. For the covering abstract see ITRD E122906.

Key concepts: Bridge (graph theory), Fibre-reinforced plastic, Structural engineering, Engineering, Forensic engineering, Civil engineering, Medicine, Internal medicine

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