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I. Stoecklin, U. Meier (2003)
STRENGTHENING OF CONCRETE STRUCTURES WITH PRESTRESSED AND GRADUALLY ANCHORED CFRP STRIPS
A. Tateishi, A. Kobayashi, Y. Hamada, T. Takahashi, H. Yasumori (2005)
Application of Tensioned CFRP Strip Method to an Existing BridgeSP-230: 7th International Symposium on Fiber-Reinforced (FRP) Polymer Reinforcement for Concrete Structures
F. Lin, J. Sun, H. Nakamura, K. Maeda (2012)
Fatigue crack repair using drilled holes and externally bonded CFRP strips
Hitoshi Nakamura, Wei Jiang, Hiroyuki Suzuki, K. Maeda, T. Irube (2009)
Experimental study on repair of fatigue cracks at welded web gusset joint using CFRP stripsThin-walled Structures, 47
Huawen Ye, C. König, T. Ummenhofer, Shizhong Qiang, R. Plum (2010)
Fatigue Performance of Tension Steel Plates Strengthened with Prestressed CFRP LaminatesJournal of Composites for Construction, 14
B. Täljsten, Christian Hansen, J. Schmidt (2009)
Strengthening of old metallic structures in fatigue with prestressed and non-prestressed CFRP laminatesConstruction and Building Materials, 23
P. Colombi, A. Bassetti, A. Nussbaumer (2003)
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(2011)
Debonding shear stress of partially pre-tensioned CFRP strips bonded onto steel plates
A method of repairing cracked steel members with pre-tensioned CFRP strips was investigated experimentally. Since a compressive force is introduced into the steel members by releasing the pre-tension in the CFRP strips after bonding, this technique is an effective fatigue crack repair method. With the aim of applying the method to a real structure, a simple, compact pre-tensioning device prototype was developed, and the effectiveness of the repair method was verified experimentally. The preliminary experiments were conducted using flat steel plates and varying the pre-tension of the CFRP strips. Results of tensile and creep tests revealed that it was possible to introduce a compressive force of approximately 36 kN into the steel plate rationally. Moreover, strain in the steel plate was measured for approximately 3 yrs. after introducing the compressive force, and a pre-stress loss of approximately 20% due to creep of the adhesive joint was observed under room-temperature conditions. Fatigue test results confirm that the application of this method to fatigue crack repair is feasible.
Advances in Structural Engineering – SAGE
Published: Dec 1, 2014
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