Author: Concrete Bridge Development Group (CBDG).
27 November 2014
First published: 27 November 2014
Standard: £9 + VAT
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Concrete Bridge Development Group (CBDG).
This article examines the prestressing for a concrete bridge. Prestressing enhances the capacity of a member that is weak in tension, but strong in compression. It effectively creates a new material that is strong in tension. A prestressed bridge has much less steel to be handled, which reduces congestion, leading to easier and quicker concrete placing.
A new series from the Concrete Bridge Development Group (CBDG). This article demonstrates the benefits of using concrete.
The various high performance concretes that might be used for concrete bridges, to make them either quicker and easier to build, or more economic are discussed. The advantages of high strength, lightweight, fibre reinforced and self-compacting concretes are described, together with the use of new materials that can replace steel for both reinforcement and prestressing.