Civil Engineering and Architecture Vol. 10(2), pp. 584 - 599
DOI: 10.13189/cea.2022.100216
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Modelling of Cracked Concrete and Identification of Design Parameters Using Static Non-linear Analysis

Shifana Fatima Kaafil Rehumaan ^*
Hekma School of Design and Architecture, Dar Al-Hekma University, Jeddah, Kingdom of Saudi Arabia

ABSTRACT

Disaster mitigation in developing countries calls for use of locally available composite materials and technology for faster implementation. The behavior of concrete with composites at vulnerable locations is considerably improved in non-linear form. The focus of the study is to provide design inputs for rehabilitation of damaged beam using locally available composite materials based on nonlinear static analysis. The study models are the tensile zone of a beam structure using finite elements and pre-assigned crack widths and crack depth. By non-linear material analysis, the stiffness variation is found out, approximated in a bilinear form then given as an input to get stiffness and displacement of the models before and after modulus of rupture for concrete. The model developed in this paper involves a lot of uncertainties and thereby fuzzy logic has been used to handle these uncertainties. The percentage increase in stiffness and percentage reduction in displacement for undamaged, damaged concrete model and concrete rehabilitated with composite are found using fuzzy logic then compared with the results obtained from finite elements analysis. The method developed in this paper is validated with an example, showing the percentage increase via load carrying capacity of the beam and the different types of repairs and rehabilitation. The equations developed in this paper are recommended for design implementation of cracked, uncracked and damaged specimens using locally made different composites.

KEYWORDS
Modelling, Crack Width, Bilinear Form, Rehabilitation and Damaged Beam

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Shifana Fatima Kaafil Rehumaan , "Modelling of Cracked Concrete and Identification of Design Parameters Using Static Non-linear Analysis," Civil Engineering and Architecture, Vol. 10, No. 2, pp. 584 - 599, 2022. DOI: 10.13189/cea.2022.100216.

(b). APA Format:
Shifana Fatima Kaafil Rehumaan (2022). Modelling of Cracked Concrete and Identification of Design Parameters Using Static Non-linear Analysis. Civil Engineering and Architecture, 10(2), 584 - 599. DOI: 10.13189/cea.2022.100216.