Publication

Comparison of Internal and External Prestressing for Typical Highway Bridges

Olivier Burdet, Marc Badoux
2000
Conference Papers

Abstract

The paper presents an analytical comparison of the amount of prestressing required for two similar bridges, one with internal and the other with external prestressing. This comparison shows that bridges with external prestressing can become economically competitive for large girder depths. The detrimental effect of the smaller stress in the prestressing steel at the ultimate limit state is more than compensated by the thinner webs made possible by the absence of the ducts.

Official source

https://infoscience.epfl.ch/entities/publication/940a8b57-f358-45a7-a876-49b1a3a28796

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Olivier Burdet, Marc Badoux
2000
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/940a8b57-f358-45a7-a876-49b1a3a28796

About this result

Related concepts (31)

Prestressed concrete

Prestressed concrete is a form of concrete used in construction. It is substantially "prestressed" (compressed) during production, in a manner that strengthens it against tensile forces which will exist when in service. This compression is produced by the tensioning of high-strength "tendons" located within or adjacent to the concrete and is done to improve the performance of the concrete in service. Tendons may consist of single wires, multi-wire strands or threaded bars that are most commonly made from high-tensile steels, carbon fiber or aramid fiber.

Bridge

A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations.

Suspension bridge

A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. The first modern examples of this type of bridge were built in the early 1800s. Simple suspension bridges, which lack vertical suspenders, have a long history in many mountainous parts of the world. Besides the bridge type most commonly called suspension bridges, covered in this article, there are other types of suspension bridges.

Related publications (4)

Comparison of Internal and External Prestressing for Typical Highway Bridges

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Contributions to the Modeling of Hydraulic Stimulation Using Semi-Analytical and Coupled Numerical Approaches

Development of models for assessing corroded steel girder web panels in bridges

Behaviour and strength of existing bridges with low amount of shear reinforcement