Wzmocnienie kompozytowe PBO-FRCM. Cz.1

• Autorzy: Urbańska D. , Trapko T.
• Języki publikacji: PL

Abstrakty

EN

The article presents a study on the t-shaped reinforced concrete beams strengthened in a shear with PBO-FRCM composite materials. It is a system consisting of PBO libers (p-Phenylene BenzobisOxazole) which are adhered to the surface of the element by mineral mortar matrix. This system can be used as effectively as FRP system, but due to premature debonding of composite from the concrete surface, proper anchoring of the composite is very important. Experimental studies were made on 4 reinforced concrete beams, where 3 of them were shear strengthened with PBO-FRCM with the anchorage, and one was a control beam. The anchorage system consisted of a glass fibre bar pasted in to the groove under the flange of a beam. Failure mechanism and effectiveness of PBO-FRCM shear strengthening are discussed.

Słowa kluczowe

PL

wzmocnienie kompozytowe; belka żelbetowa; belka teowa; PBO-FRCM; ścinanie; zakotwienie

EN

composite reinforcement; reinforced concrete beam; T-beam; PBO-FRCM; shear; anchorage

• Wydawca: BUILDER CORP Sp. z o.o.
• Czasopismo: Builder
• Rocznik: 2017
• Tom: R.21, nr 8
• Strony: 92--94
• Opis fizyczny: Bibliogr. 6 poz., il., tab.

Twórcy

autor

Urbańska D.

• Wydział Budownictwa Lądowego i Wodnego, Politechnika Wrocławska

autor

Trapko T.

• Wydział Budownictwa Lądowego i Wodnego, Politechnika Wrocławska

Bibliografia

• [1] Brückner A. & Ortlepp R. & Curbach M., 2007. Anchoring of shear strengthening for T-beams made of textile reinforced concrete (TRC), Materials and Structures, 2008; 41, pp. 407-418.
• [2] Baggio D. & Soudki K. & Noel M., 2014. Strengthening of shear critical RC beams with various FRP systems, Construction and Building Materials, 2014; 66, pp. 634-644.
• [3] Tzoura E. & Triantafillou T. C., 2016. Shear strengthening of reinforced concrete T-beams under cyclic loading with TRM or FRP jackets, Materials and Structures, 49 (2016), pp. 17-28.
• [4] Trapko T., Urbańska D., Kamiński M., Shear strengthening of reinforced concrete beams with PBO-FRCM composites, Composites Part B-Engineering, 2015; 80, pp. 63-72.
• [5] Ruredil, X Mesh Gold Data Sheet, Ruredil SPA, Milan, Italy,2009.
• [6] Ombers L., Structural performances of reinforced concrete beams strengthened in shear with a cement based fiber composite material. Composite Structures, 2015; 12, pp. 2316-2329.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).