Title: Design of precast prestressed SFRC T-girders for accelerated sustainable bridge construction
Author(s): Massicotte, B.; Cordoni, N.
Publication: Symposium Paper
Appears on pages(s): 195-204
Keywords: Precast; Prestressing; SFRC; Bridges; Accelerated Bridge Construction; Sustainability https://
Accelerated bridge construction is becoming a subject of major importance and, combined
use of steel fibre reinforced concrete (SFRC) and prestressing, this construction technique
offers a unique opportunity to fulfill the demand of more sustainable infrastructure with
enhanced durability and life-cycle cost reduction. Research projects carried out at
Polytechnique Montreal in the past 20 years have demonstrated that the combined use of
prestressing, SFRC, prefabrication and ultra-high performance fibre reinforced concrete
(UHPFRC) allows developing more economical and durable bridges. A project on precast Tgirders
was initiated with the aim of developing a new set of prestressed girders for new bridges
in the 10 to 30 m span range using conventional prestressing and shear reinforcement, reduced
top flange transverse reinforcement and field-cast UHPFC longitudinal joints between girders.
It is anticipated that bridge built with this concept will only require minimum maintenance over
a 75-year service life in harsh environmental conditions.