page_title: Rigid-frame bridge
section_title: Batter-post
hierarchical_section_title: Rigid-frame bridge / Types of rigid-frame bridge / Batter-post
caption_attribution_description: An illustration of a rigid frame bridge
context_page_description: A Rigid-frame bridge is a bridge in which the superstructure and substructure are rigidly connected to act as a continuous unit. Typically, the structure is cast monolithically, making the structure continuous from deck to foundation. The connections between members are rigid connections which transfer bending moment, axial forces, and shear forces. A bridge design consisting of a rigid frame can provide significant structural benefits, but can also be difficult to design and/or construct.
context_section_description: Batter-post rigid frame bridges are defined by their supports that run from the deck to the abutments at an angle. This design supports the deck in a similar way to v-shaped piers but differs in how the foundations must be built. The piers bear on or next to the abutments, eliminating the need for foundations directly beneath the bridge. This is particularly advantageous when the bridge crosses a river and constructing a foundation in the water is challenging. As a result, either the abutments have to be made larger or additional foundations must be placed next to the abutments.
caption: Diagram of a batter-post rigid frame bridge
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