Subventions et des contributions :

Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019).

More than 40% of Canadian civil infrastructure has passed its service life, and the municipal infrastructurex000D
deficit has grown to $141B (CIRC 2016). If immediate measures are not taken to revamp the infrastructure, thex000D
cost of replacement may increase manifold. Such deficient infrastructure also poses a serious threat to thex000D
public during disasters like earthquakes. A recent study conducted by the Insurance Bureau of Canadax000D
estimated the overall loss after a 9.0-magnitude earthquake in British Columbia at almost $75B (IBC 2013),x000D
which clearly reflects the vulnerability of Canadian civil infrastructure. In order to avoid such scenarios inx000D
Canada, and in other earthquake prone regions across the world, it is imperative to take immediate measures.x000D
The proposed research will introduce prefabricated post-tensioned steel bridge pier that will not only enablex000D
structures to be built faster but also help structures self-center after major earthquakes. Such structures will bex000D
immediately serviceable requiring no major repair works.x000D
Performance-based design is becoming a standard practice for seismic design and evaluation of structures inx000D
order to achieve a reliable and satisfactory level of performance. However, there has been no study on thex000D
seismic performance of such self-centering steel bridge piers. This research will help develop properx000D
understanding and knowledge about the behavior of such bridges, which will eventually help us develop thex000D
performance-based design guideline for such bridges. This study will assist engineers in examining thex000D
interaction among different components of the bridge under lateral loads, and evaluate its limit states, andx000D
determine adequate section sizes and connection details and provide design implications. Finite elementx000D
method (FEM) will be implemented in this study where the models of self-centering bridge piers will bex000D
generated in ANSYS FEM environment. Extensive FE analysis will be performed to determine the effect ofx000D
different parameters including the steel strength, dimensions, amount of post-tensioning force and energyx000D
dissipator characteristics on its behavior, and the preliminary design requirements.