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Curved Precast Concrete Bridge Projects in Colorado

 Curved Precast Concrete Bridge Projects in Colorado
Autor(en):
Beitrag für 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008, veröffentlicht in , S. 546-547
DOI: 10.2749/222137908796293758
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Six bridge projects in Colorado are complete or are currently being constructed using curved, precast concrete girders. In all cases, the girders were spliced and in most applications, post- tensio...
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Bibliografische Angaben

Autor(en):
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008
Veröffentlicht in:
Seite(n): 546-547 Anzahl der Seiten (im PDF): 8
Seite(n): 546-547
Anzahl der Seiten (im PDF): 8
Jahr: 2008
DOI: 10.2749/222137908796293758
Abstrakt:

Six bridge projects in Colorado are complete or are currently being constructed using curved, precast concrete girders. In all cases, the girders were spliced and in most applications, post- tensioned to accommodate spans up to 265’. These projects were developed to utilize plant manufactured precast concrete girders using variations of standard Colorado DOT cross sections. Of the six projects, two including the Ramp K and Ramp H Flyover Bridges, have been completed and are currently in service. The remaining projects have been designed and are at varying stages construction. The Ramp K Bridge will be featured as case study to discuss the technical and constructability issues that are inherent in this type of construction. Other projects, currently under construction, will also be discussed. These design and construction of these projects faced many challenges in difficult urban site conditions. Unique solutions for spliced girder technology that were developed during both design and construction will be discussed.

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