A Channel Bridge is a specific type of structure defined by its design and construction method, particularly suitable for situations requiring increased vertical clearance.
Based on the provided information, The Channel Bridge is a patented, precast-concrete superstructure system that uses post-tensioned segmental construction.
Key Characteristics of The Channel Bridge
This system utilizes advanced engineering techniques to create bridge decks. Its notable features include:
- Patented Design: It is a proprietary system, meaning the specific design and construction methods are legally protected.
- Precast-Concrete Superstructure: The main structural components (the superstructure) are manufactured off-site using concrete and then transported to the location for assembly.
- Post-Tensioned Segmental Construction: This construction method involves building the bridge deck from smaller, individual segments that are joined together. Steel tendons or bars are then threaded through ducts within these segments and tensioned (pulled taut) after the segments are in place. This creates compression within the concrete, enhancing its strength and allowing for longer spans and efficient use of materials.
When is The Channel Bridge Appropriate?
According to the reference, this system is particularly appropriate in specific construction scenarios:
- Increased Vertical Under-Clearance: The Channel Bridge is suitable when a new bridge or the replacement of an existing structure requires more space underneath it. This is often necessary to accommodate larger vehicles, raise a roadway above flood levels, or improve clearance over railways or waterways.
In essence, The Channel Bridge offers a specific, engineered solution using prefabrication and post-tensioning techniques, primarily designed to address the need for greater height clearance beneath a bridge structure.
