Innovative design approach of precast-prestressed girder bridges using ultra high performance concrete

Almansour, H.; Lounis, Z.
April 2010
Canadian Journal of Civil Engineering;Apr2010, Vol. 37 Issue 4, p511
Academic Journal
The construction of new bridges and the maintenance and renewal of aging highway bridge network using ultra high performance concrete can lead to the construction of long life bridges that will require minimum maintenance resulting in low life cycle costs. Ultra high performance concrete (UHPC) is a newly developed concrete material that provides very high strength and very low permeability to aggressive agents such as chlorides from de-icing salts or seawater. Ultra high performance concrete could enable major improvements over conventional high performance concrete (HPC) bridges in terms of structural efficiency, durability, and cost-effectiveness over the long term. A simplified design approach of concrete slab on UHPC girders bridge using the Canadian Highway Bridge Design code and the current recommendations for UHPC design is proposed. An illustrative example demonstrates that the use of UHPC in precast-prestressed concrete girders yields a more efficient design of the superstructure where considerable reduction in the number of girders and girder size when compared to conventional HPC girders bridge with the same span length. Hence, UHPC results in a significant reduction in concrete volume and then weight of the superstructure, which in turn leads to significant reduction in the dead load on the substructure, especially for the case of aging bridges, thus improving their performance. La construction de nouveaux ponts ainsi que l’entretien et la réfection du réseau vieillissant des ponts autoroutiers par l’utilisation de béton à très haute performance, peut conduire à la construction de ponts à longue durée de vie qui demanderont un minimum d’entretien, permettant ainsi de faibles coûts du cycle de vie. Le béton à ultra haute performance (BUHP) est un nouveau béton qui fournit une très grande résistance et une très faible perméabilité aux agents chimiques tels que les chlorures provenant des sels de déglaçage et de l’eau de mer. Le BUHP pourrait permettre de grandes améliorations par rapport aux ponts conventionnels en béton haute performance en termes d’efficacité structurale, de durabilité et de rentabilité à long terme. L’article propose une approche simplifiée de conception des dalles de béton sur les ponts à poutres en UHPC en utilisant le Code canadien sur le calcul des ponts routiers et les recommandations courantes sur la conception des ouvrages en BUHP. Selon un exemple présenté, l’utilisation des BUHP dans les ponts en poutres de béton précontraint permet une conception plus efficace de la superstructure, permettant une réduction importante du nombre et de la taille des poutres par rapport aux ponts à poutres conventionnels en béton haute performance de la même portée. Ainsi, les résultats de l’utilisation des BUHP engendrent une réduction importante du volume de béton et, ainsi, du poids de la superstructure. Ceci résulte en une réduction importante de la charge permanente sur l’infrastructure, particulièrement dans le cas des ponts vieillissants, améliorant ainsi leur performance.


Related Articles

  • Mackenzie River twin bridges. Perry, Vic; Krisciunas, Raymond; Stofko, Bob // PCI Journal;Spring2014, Vol. 59 Issue 2, p40 

    The Mackenzie River bridges are part of the TransCanada Highway realignment near Thunder Bay, ON, Canada. The project consists of twin two-lane bridges, each with three spans, for a total length of 180 m (590 ft). The bridges cross a deep gorge of the Mackenzie River using variable depth,...

  • Use of UHPC in Bridge Structures: Material Modeling and Design. Gunes, Oguz; Yesilmen, Seda; Gunes, Burcu; Ulm, Franz-Joseph // Advances in Materials Science & Engineering;2012, p1 

    Ultra-high-performance concrete (UHPC) is a promising new class of concrete material that is likely to make a significant contribution to addressing the challenges associated with the load capacity, durability, sustainability, economy, and environmental impact of concrete bridge infrastructures....

  • Bridge specifications for high-performance concrete. Russell, Henry G. // Concrete Products;Oct2002, Vol. 105 Issue 10, p30 

    Reports on the need to update bridge specification in the U.S. for use of high performance concrete (HPC) in highway bridges. Initiation of a national program to implement the use of HPC in bridges by the Federal Highway Administration in 1993. Features of the program; Classes of concrete used...

  • Lessons learned: HPC in bridges. Russell, Henry G. // Concrete Products;Sep2000, Vol. 103 Issue 9, p78 

    Focuses on field experiences in the application of high performance concrete (HPC) in bridge construction in the United States. Diameter strands used in the precast-prestressed concrete beams; Precast fabrication; Cast-in-place construction.

  • TIED-ARCH SPAN'S NEW APPROACH IS DESIGNED TO FIX OLD PROBLEMS. Angelo, William J. // ENR: Engineering News-Record;02/15/99, Vol. 242 Issue 7, p13 

    Focuses on the use of tied-arch bridges in resolving the problems of cracking girders. Funding for the Speer Boulevard bridge over the South Platte River in Colorado and Nebraska; Design for typical tied-arch spans; Construction of tied-arch bridges.

  • Higher scale. Kuennen, Tom // Concrete Products;Oct98, Vol. 101 Issue 10, p35 

    Describes the construction of the Tom Music Bridge over the Cispus River in Washington State. Flood-resistant design of the bridge; Use of single-piece, prestressed girders more than 150 feet long; Special challenge posed by the girders for fabricator Concrete Technology Corp.; Casting of the...

  • Impact factor. Detwiler, Rachel J. // PCI Journal;Fall2012, Vol. 57 Issue 4, p7 

    An introduction is presented in which the editor discusses various reports within the issue on topics including the development of a bridge bent system, the design and construction of a bridge for high-speed rail and the rollover stability of bridge girders.

  • Dynamic Characteristics Evaluation of Innovative UHPC Pedestrian Cable Stayed Bridge. Won Jong Chin; Young Jin Kim; Jeong-Rae Cho; Jong Sup Park // Engineering;Dec2012, Vol. 4 Issue 12, p869 

    KICT (Korea Institute of Construction Technology) is conducting a project called "SUPER BRIDGE 200-Development of Low Cost and Long Life Hybrid Cable Stayed Bridge". This project aims to reduce the construction and maintenance costs of long-span bridges by 20% and double their lifetime through...

  • ASWAN CROSSING NEARS FINISH FOLLOWING A TWO-YEAR DELAY.  // ENR: Engineering News-Record;3/11/2002, Vol. 248 Issue 9, p14 

    Reports the near completion of a cable-stayed bridge in Aswan, Egypt. Reasons for the delay in completion; Requirements of the reference design; Cost of the project.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics