Experimental and numerical analysis on the cyclic behavior of bridge piers with and without CFRP retrofit

• Type: Article in International Conference Proceedings Book
• Date: 2015

Authors

Pedro Delgado (Author) Other; Frutuoso Sousa (Author) Other; Patrício Rocha (Author) Other; António Arêde (Author) FEUP; Nelson Vila Pouca (Author) FEUP; Aníbel Costa (Author) Other; Raimundo Delgado (Author) FEUP

Conference proceedings International

Title: ECCOMAS Thematic Conference - COMPDYN 2015: 5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Proceedings - An IACM Special Interest Conference

Pages: 1812-1823

5th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2015

Crete Island, Greece, 25-27 May 2015

Indexing

Scopus - 1 Citation

Scientific classification

FOS: Engineering and technology > Civil engineering

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

Other information

Authenticus ID: P-00G-P0R

DOI: 10.7712/120115.3503.1605

Abstract (EN): The main objective of this paper is to evaluate the cyclic behavior of RC hollow piers, with and without with CFRP retrofit, by comparison of experimental tests results with structural numerical modeling. The retrofit techniques aim to increase the shear strength and the ductility capacity through the establishment of principles and strategies applied in an experimental cyclic campaign of RC hollow piers, carried out in the Laboratory for Earthquake and Structural Engineering (LESE) of the Faculty of Engineering of University of Porto (FEUP). The evaluation and calibration of the efficiency of several retrofit solutions is also performed. The numerical simulations are carried out using two different methodologies: (i) fiber model and (ii) damage model. The fiber models based in a finite element discretiztion with non-linear behavior distributed along the elements length and cross-sectional area, while the damage model is supported on refined finite element (FE) meshes, with high complexity and detail levels in the constitutive laws defined for both concrete and steel. The concrete is simulated with a continuum damage model where several applications for bridges with hollow section piers can be found at Faria et al. [1]. Results of the experimental campaign allow to discuss and conclude about the efficiency of each numerical method, namely regarding the shear strength and the ductility capacity assessment.

Language: English

Type (Professor's evaluation): Scientific