box beam
Noun: A box beam is a structural beam constructed by fastening boards together to form a hollow, rectangular cross-section. This design provides high strength and stiffness while using less material than a solid beam of comparable strength.
The term "box beam" is used primarily in engineering, construction, and architecture to describe a specific type of load-bearing element. * The bridge's support structure utilizes long box beams made of steel. * For the deck, the architect specified wooden box beams to reduce weight.
- Composite Box Beam: A box beam made from different materials (e.g., concrete and steel) bonded together to work as a single unit.
- The innovative design features a composite box beam for the floor system.
- Prefabricated Box Beam: A box beam that is manufactured off-site and then transported for installation.
- Using prefabricated box beams significantly accelerated the construction timeline.
- Box Girder: This is a closely related term, often used interchangeably with "box beam," especially for larger-scale structural elements in bridges and buildings. A girder is typically a primary support beam.
- Hollow Beam: A more general term for any beam with an empty interior space, which includes but is not limited to a rectangular box shape.
- Hollow Rectangular Beam: A descriptive synonym that explicitly states the shape and construction.
- Built-up Beam: A general term for a beam fabricated from multiple pieces of material, which includes a box beam as one type.
The core meaning of "box beam" is defined by its construction method (built up from boards or plates) and its resulting hollow, box-like shape. This design is efficient for resisting bending and torsional (twisting) forces.
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a beam built up from boards; has a hollow rectangular cross section
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