Abstract
Due to extreme business competitions in bridge construction industries, the cost reduction became the most important issue in winning a contract bidding. The largest bridge construction cost saving can be obtained by using precasted construction method and by reducing required number of girders, columns, and decks in the bridge system. Therefore, an precasted arch deck system is proposed to widen the lateral span of the deck, which can result in reducing the number of required I-type PSC girders for construction cost saving. A usual lateral width of a flat deck is 1.5–2.0 m, but the width of arch deck is 2.5 m, an increase of 25–60%. Therefore, for a PSC girder bridge with a total width 10 m, a number of required girders needed for ordinary flat RC deck and arch deck is 5 and 4, respectively. This means that one less girder can be required, which means that 20% of girder construction cost can be achieved by using arch deck over ordinary flat deck. In this study, precasted RC arch deck is developed and manufactured to evaluate structural performance of the deck. The study results showed that arch deck has performance exceeding ordinary flat deck and can be used as alternative decks for precasted PSC I-girder bridge construction. The study results are discussed in detail in the paper.
Highlights
Demands for infrastructure have exploded since the early twentieth century as manufactured good transportations exponentially increased
The maximum static loads of three specimens were 63.20, 61.10, and 69.15 kN, and the mean value was 64.48 kN. This is a level of approximately 1.6–1.9 times the design ultimate load (Pu) 37.12 kN
In AD arch deck test results, the maximum failure load occurred at approximately 1.75 times the average design ultimate load
Summary
Demands for infrastructure have exploded since the early twentieth century as manufactured good transportations exponentially increased. Due to the compression predominant stresses achieved from arching effect (Taylor et al 2001; Taylor and Mullin 2006; Wu et al 2006; Marefat et al 2004; Nam et al 2009; Jeong and Kim 2014), the arch decks can have longer span and do not fail by tensile cracking. For these advantages, the arch deck can reduce construction cost in PSC I-girder bridge projects. In this study, a precast RC deck with arch shape is proposed and to evaluate structural performance of the deck by flexural test of single RC arch deck and 2-span composite arch deck
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Concrete Structures and Materials
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
