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Bridge Models: Segmental Bridge

This segmental bridge is a model of a typical segmental box beam bridge. The concrete segments are either cast on-site and attached to the piers or pre-cast and brought to the construction site. Once constructed, the segments can then be attached to the piers using one of the following two methods: Gantry Crane method or Balanced Cantilever method. On most segmental bridge projects, a combination of these methods is used to construct the bridge. Once the segments are attached to the piers, the keystone is placed and all the segments are post-tensioned using steel cables.

Segmental Bridges are becoming increasingly popular because of their relatively low cost when compared to suspension or cable-stayed bridges. Segmental box beam bridges are quicker to construct, and less disruptive to the surrounding environment.

This model is intended for students between the ages of 10-15. The model is fairly complicated and is constructed from both wood and Plexiglas. Please download and review the User Guide before requesting this model for your classroom.

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