Experimental and numerical investigation of the cyclic response of stainless steel reinforced concrete columns

• Type: Article in International Scientific Journal
• Date: 2022-02

Authors

José Melo (Author) FEUP; Sheida Afshan (Author) Other; Tiziana Rossetto (Author) Other; Humberto Varum (Author) FEUP; António Arêde (Author) FEUP

Journal

Title: Engineering Structures

Vol. 252 No. 113607

Pages: 1-11

ISSN: 0141-0296

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 1 Citation

ISI Web of Science

Scopus - 2 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Civil engineering > Structural engineering

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: P-00V-S5B

DOI: 10.1016/j.engstruct.2021.113607

Abstract (EN): Corrosion of carbon steel reinforcement is the major cause of premature deterioration of reinforced concrete infrastructures. There is increasing interest in the use of maintenance-free materials such as stainless steel reinforcement in concrete, with inherent durability and resistance to various forms of corrosion and favourable mechanical properties, in particular high ductility and substantial strain hardening. This paper presents the results of the first large-scale testing programme on reinforced concrete columns with duplex EN 1.4462 stainless steel rebars. Three cantilever column specimens were tested, two with EN 1.4462 stainless steel reinforcing bars, subjected to constant compressive axial load plus (i) monotonic loading and (ii) lateral cyclic loading, and one B500 carbon steel reinforced control specimen. In addition, conventional pull-out tests and tensile tests were conducted for a comparative assessment of the bond-slip behaviour and mechanical properties of the reinforcing bars. Numerical modelling simulations were carried out with the open-source finite element analysis platform OpenSees to predict the nonlinear response of stainless steel reinforced concrete columns and the results were compared with the measured experimental performance data. The force-displacement global responses and the dissipated energy evolutions of the tested columns from the experimental and numerical models are presented and compared.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11