Evaluation of damage in reinforced concrete columns under biaxial loading

• Type: Article in International Conference Proceedings Book
• Date: 2013

Authors

Rodrigues, H (Author) Other; Arede, A (Author) Other; Varum, H (Author) FEUP; Costa, A (Author) Other

Conference proceedings International

Title: ECCOMAS Thematic Conference - COMPDYN 2013: 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Proceedings - An IACM Special Interest Conference

Pages: 2466-2479

4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2013

Kos Island, 12 June 2013 through 14 June 2013

Indexing

ISI Web of Knowledge

Scopus - 0 Citations

Scientific classification

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

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: P-009-AAS

Abstract (EN): The present study is focused on the analysis of damage evolution observed in an experimental campaign on 24 RC columns tested under uniaxial and biaxial loading. The observed damage evolution and damage states are compared for uniaxial and biaxial loading conditions. The test results show that for biaxial loading conditions each damage limit state occurs for lower drift demands when compared with the corresponding test for uniaxial demand (a reduction of 50-75% was found). The deformation demand associated with each damage state is compared with performance objectives proposed in international guidelines. Finally, and based on the philosophy of the Park & Ang uniaxial damage index, two new expressions are proposed for the evaluation of damage in RC elements under biaxial loading. These expressions are calibrated against the experimental results obtained with the tests on columns based on a scoring process to choose the best DI estimator.

Language: English

Type (Professor's evaluation): Scientific