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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

An efficient mechanical-probabilistic approach for the collapse modelling of RC structures

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Author(s):
K. O. COELHO [1] ; E. D. LEONEL [2] ; J. FLÓREZ-LÓPEZ [3]
Total Authors: 3
Affiliation:
[1] University of São Paulo. São Carlos School of Engineering. Department of Structural Engineering - Brasil
[2] University of São Paulo. São Carlos School of Engineering. Department of Structural Engineering - Brasil
[3] Federal University of Latin-American Integration. Latin-American Institute of Technology, Infrastructure and Territory - Brasil
Total Affiliations: 3
Document type: Journal article
Source: Rev. IBRACON Estrut. Mater.; v. 12, n. 2, p. 386-397, 2019-05-20.
Abstract

Abstract The reinforced concrete (RC) structures are widely utilized around the world. However, the modelling of its complex mechanical behaviour by efficient numerical approaches has been presented marginally in the literature. The efficient approaches enable the accurate and the realistic representation of the mechanical phenomena involved and are computationally efficient for analysing complex structures. In the present study, the improved version of the lumped damage model is coupled to the Monte Carlo simulation method to represent the mechanical-probabilistic behaviour of RC structures. In such model, the concrete cracking and reinforcements’ yield are represented accurately. Moreover, this damage approach enables the accurate modelling of failure scenarios, which are based on the damage variable. Furthermore, this coupled model enables the determination of the collapse modelling accounting for uncertainties, which is the main contribution of the present study. One simple supported RC beam and one 2D RC frame are analysed in the probabilistic context. The accurate results are obtained for the probabilistic collapse path as well as its changes as a function of the loading conditions and material properties uncertainties. (AU)

FAPESP's process: 14/18928-2 - Numerical models based on Boundary Element Method and level set method applied to topological optimization in anisotropic non-homogeneous media
Grantee:Edson Denner Leonel
Support Opportunities: Regular Research Grants