Numerical seismic safety assessment of RC bridges with hollow piers

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

Authors

Pedro Delgado (Author) Other; António Arêde (Author) FEUP; Nelson Vila Pouca (Author) FEUP; Aníbel Costa (Author) Other

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: 845-864

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

Crete Island, Greece, 25-27 May 2015

Indexing

Scopus - 0 Citations

Scientific classification

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

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: P-00G-NY8

DOI: 10.7712/120115.3434.1590

Abstract (EN): The seismic damages of reinforced concrete bridges in recent events show that many of them have an inadequate behavior and safety. Therefore, is important to accurately define bridge safety assessment and hence evaluate the accuracy of the analytical methodologies for seismic response of bridges. The main objective of this paper is to present several options for structural simulation with different complexities in order to assess the seismic response of bridges and then use the results for the safety assessment with probabilistic approaches. The numerical simulations are carried out using three different methodologies: (i) plastic hinge model, (ii) fiber model and (iii) damage model. Seismic response of bridges is based on a simplified plane model, with easy practical application and involving reduced calculation efforts while maintaining adequate accuracy. The evaluation of seismic vulnerability is carried out through the failure probability quantification involving a non-linear transformation of the seismic action in its structural effects. The applicability of the proposed methodologies is then illustrated in the seismic analysis of two reinforced concrete bridges, involving a series of experimental tests and numerical analysis, providing an excellent set of results for comparison and global calibration.

Language: English

Type (Professor's evaluation): Scientific

Notes: KEYNOTE LECTURE