Calli Extradosed Bridge: Fast track project for an extradosed bridge in seismic area
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Bibliographic Details
| Author(s): |
Ozgur Ozkul
(Freysas-Freyssinet, Istanbul, Turkey)
C. Noyan Ozel (Freysas-Freyssinet, Istanbul, Turkey) Cagri Yayim (Freysas-Freyssinet, Istanbul, Turkey) Etienne Combescure (Freyssinet, Paris, France) Vanessa Buchin-Roulie (Freyssinet, Paris, France) Nicolas Fabray Julien Erdogan (Freyssinet, Paris, France) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017 | ||||
| Published in: | IABSE Symposium Vancouver 2017 | ||||
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| Page(s): | 677-682 | ||||
| Total no. of pages: | 6 | ||||
| Year: | 2017 | ||||
| DOI: | 10.2749/vancouver.2017.0677 | ||||
| Abstract: |
Calli Bridge, in Antalya city center, is the first extradosed bridge in Turkey. This 180m long bridge is composed of an 80m main span and two side spans of 50m. The concrete deck is a twin pi-section of 2.5m in depth and 15m wide, making the bridge 30m wide. The extradosed PT cables are composed of 2 sets of 4 cables 31HDE15 per pi-section that will go through 3 pylons of 7m height, using Freyssinet saddles and cohestrand technology. For the first time worldwide, a 1,960MPa ultimate tensile strength strand is used, which has a direct impact on pylon’s dimensions. As Antalya is located in high seismic hazard zone, a base isolation using LRB has been proposed. Thanks to this innovative concept for Calli Bridge of combining extradosed cables with base isolation and high strength strands, a cost effective solution has been reached. With the control of the overall supply chain of specific equipments, conception and construction were managed in only 7 months. |
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| Keywords: |
bridge isolation seismic extradosed LRB post-tension
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