Repairing and strengthening of elliptical paraboloid reinforced concrete shells with openings

• Autorzy: Meleka N. N. , Safan M. A. , Bashandy A. A. , Abd-Elrazek A. S.
• Języki publikacji: EN

Abstrakty

EN

This investigation is carried out to evaluate the repair and strengthening the techniques of elliptical paraboloid reinforced concrete shells with openings. An experimental program of several different techniques in repair and strengthening is executed. The materials, which are considered for strengthening, are; Glass fiber reinforced polymers GFRP at different position of the shell bottom surface, steel strip and external tie. They loaded by four concentrated loads affected on the corners of the opening. The initial and failure loads as well as the crack propagation for the tested shells at different loading stages, defl ections and failure load for repaired and shells are recorded. A non-linear computer program based on finite element techniques is used to study the behavior of these types of shells. Geometric and materials nonlinearities are considered in the analysis. The efficiency and accuracy of computer program are verifi ed by comparing the program results with those obtained experimentally for the control shell with opening and strengthened shells.

Słowa kluczowe

EN

reinforced concrete shell; opening; repair; strengthening; steel strip; repair mortar; resinous mortar; GFRP strip

PL

powłoka żelbetowa; otwór; naprawa; wzmacnianie; taśma stalowa; zaprawa naprawcza; zaprawa żywiczna; taśma GFRP

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2013
• Tom: Vol. 59, nr 3
• Strony: 401--420
• Opis fizyczny: Bibliogr. 18 poz., il., tab.

Twórcy

autor

Meleka N. N.

• Civil Eng. Dep., Faculty of Eng., Menoufiya University, Egypt

autor

Safan M. A.

• Civil Eng. Dep., Faculty of Eng., Menoufiya University, Egypt

autor

Bashandy A. A.

• Civil Eng. Dep., Faculty of Eng., Menoufiya University, Egypt

autor

Abd-Elrazek A. S.

• RedCo. Construction Company, Doha, Qatar

Bibliografia

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