Performance of reinforced concrete elements strengthened with carbon fiber CFRP at elevated temperatures

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Abstract

The importance of the research topic is established by the problems that occur in structural buildings when exposed to fire accidents, where the concrete loses much part of its mechanical properties and therefore becomes out of service. Because reconstruction of damaged buildings has a high financial cost, it is necessary to focus on the restoration of damaged concrete members with performant techniques and proven efficiency in terms of increasing the strength of concrete and its resistance to high temperatures. The authors conduct a numerical investigation on the use of carbon fiber-reinforced polymer sheeting CFRP to restore various structural concrete elements such as beams, columns, and slabs damaged in fire accidents for two types of normal and high-strength concrete, in addition to studying the behavior of concrete after strengthening it with CFRP sheets. The results by showed that load capacity, stiffness index, and absorption energy index have been improved

About the authors

Hadeal H. Alzamili

RUDN University

Email: HadealHakim8@gmail.com
ORCID iD: 0000-0001-8109-3381

PhD student, Department of Civil Engineering, Academy of Engineering

Moscow, Russian Federation

Asser M. Elsheikh

RUDN University; Mansoura University

Author for correspondence.
Email: elsheykh_am@pfur.ru
ORCID iD: 0000-0002-1212-2924

Assistant professor, Department of Civil Engineering, Academy of Engineering, RUDN University; Assistant professor, Department of Civil Engineering, Mansoura University

Moscow, Russian Federation; Mansoura, Egypt

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