Damage evolution in reinforced concrete columns subjected to biaxial loading

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Hugo Rodrigues (Author) Other; António Arêde (Author) FEUP; Humberto Varum (Author) FEUP; Aníbal Costa (Author) Other

Journal

Title: Bulletin of Earthquake Engineering

Vol. 11 No. 5

Pages: 1517-1540

ISSN: 1570-761X

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 23 Citations

ISI Web of Science

Scopus - 30 Citations

INSPEC

Scientific classification

FOS: Engineering and technology > Environmental engineering

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

Other information

Authenticus ID: P-006-6ZH

DOI: 10.1007/s10518-013-9439-2

Abstract (EN): An analysis of the damage observed in 24 reinforced concrete (RC) columns tested under uniaxial and biaxial horizontal loading is presented. The test results show that for biaxial loading conditions specific damage occurs for lower drift demands when compared with the corresponding uniaxial demand (a reduction of 50-75 % was found). The damage distribution observed in each column is also analysed. No significant differences are found in the plastic hinge length for uniaxial and biaxial loading. The drift demands associated with each damage state are compared with reference values proposed in international guidelines. Finally, and based on the philosophy of the Park and Ang uniaxial damage index, two new expressions are proposed for the evaluation of damage in RC elements under biaxial loading. The results of the application of these expressions to the experimental results are discussed.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 24