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A platform for research: civil engineering, architecture and urbanism
Design of strengthening measures with externally bonded CFRP strips
The design of a strengthening measure must be carried out in such a way that the potential modes of failure are avoided. Designing flexural strengthening with CFRP strips always requires the designer to carry out a flexural analysis, in which failure of the concrete in compression or the reinforcement in tension is ruled out, a bond analysis and a shear analysis, and also to check for the risk of concrete cover separation failure. The bond analysis is complex and can be carried out in several stages depending on the accuracy requirements. When checking fatigue for non‐static loads, the Deutscher Ausschuss für Stahlbeton (DAfStb) guideline can be used to analyse the bond of the flexural strengthening in the form of externally bonded CFRP strips. The DAfStb guideline, supplementing DIN EN 1992‐1‐1 together with its National Annex, contains expressions for limiting stresses, crack widths and deformations when assessing the serviceability limit state.
Design of strengthening measures with externally bonded CFRP strips
The design of a strengthening measure must be carried out in such a way that the potential modes of failure are avoided. Designing flexural strengthening with CFRP strips always requires the designer to carry out a flexural analysis, in which failure of the concrete in compression or the reinforcement in tension is ruled out, a bond analysis and a shear analysis, and also to check for the risk of concrete cover separation failure. The bond analysis is complex and can be carried out in several stages depending on the accuracy requirements. When checking fatigue for non‐static loads, the Deutscher Ausschuss für Stahlbeton (DAfStb) guideline can be used to analyse the bond of the flexural strengthening in the form of externally bonded CFRP strips. The DAfStb guideline, supplementing DIN EN 1992‐1‐1 together with its National Annex, contains expressions for limiting stresses, crack widths and deformations when assessing the serviceability limit state.
Design of strengthening measures with externally bonded CFRP strips
Zilch, Konrad (editor) / Niedermeier, Roland (editor) / Finckh, Wolfgang (editor)
2014-06-18
28 pages
Article/Chapter (Book)
Electronic Resource
English
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