A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Strength-fatigue behavior of fiber reinforced polymer strenghened prestressed concrete T-beams
The objective of this study was to set up an experimental program that could examine a number of precracked pretensioned prestressed concrete (PC) T beams. The beams were strengthened with CFRP (carbon fiber reinforced polymer) sheets. Static tests were performed. Fatigue tests were also run to investigate their long-term serviceability performance. The stress range showed excellent fatigue performance after sustaining more than one million cycles. This beam also achieved the full ultimate strength and ductility of an identical specimen monotonically loaded to failure without cycling. One beam was cycled 3 million times at a higher stress range without showing signs of noticeable stiffness degradation. The beam, however, failed prematurely in static loading indicating that the fatigue life of its CFRP must have been shortened by the extensive cycling. Due to its superior bonding to concrete across flexural cracks, CFRP was seen to develop higher strains at critical sections than those recovered from strain compatibility.
Strength-fatigue behavior of fiber reinforced polymer strenghened prestressed concrete T-beams
The objective of this study was to set up an experimental program that could examine a number of precracked pretensioned prestressed concrete (PC) T beams. The beams were strengthened with CFRP (carbon fiber reinforced polymer) sheets. Static tests were performed. Fatigue tests were also run to investigate their long-term serviceability performance. The stress range showed excellent fatigue performance after sustaining more than one million cycles. This beam also achieved the full ultimate strength and ductility of an identical specimen monotonically loaded to failure without cycling. One beam was cycled 3 million times at a higher stress range without showing signs of noticeable stiffness degradation. The beam, however, failed prematurely in static loading indicating that the fatigue life of its CFRP must have been shortened by the extensive cycling. Due to its superior bonding to concrete across flexural cracks, CFRP was seen to develop higher strains at critical sections than those recovered from strain compatibility.
Strength-fatigue behavior of fiber reinforced polymer strenghened prestressed concrete T-beams
Das Festigkeits-Ermüdungs-Verhalten von mit faserverstärktem Kunststoff verstärkten, vorgespannten Beton-T-Trägern
Larson, Kyle H. (author) / Peterman, Robert J. (author) / Rasheed, Hayder A. (author)
Journal of Composites for Construction ; 9 ; 313-326
2005
14 Seiten, 28 Bilder, 2 Tabellen, 13 Quellen
Article (Journal)
English
Strength-Fatigue Behavior of Fiber Reinforced Polymer Strengthened Prestressed Concrete T-Beams
| Online Contents | 2005
Strength-Fatigue Behavior of Fiber Reinforced Polymer Strengthened Prestressed Concrete T-Beams
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Fatigue behavior of reinforced concrete beams strengthened with prestressed fiber reinforced polymer
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