Definition

1. Noun:
   • A large, strong beam, typically made of steel or iron, used as a primary horizontal support in construction and engineering structures. It is designed to carry heavy loads and span significant distances, often forming the main framework for bridges, buildings, and other large constructions.

Examples of Usage

• Noun:
  • The construction crew lifted the massive steel girder into place for the new bridge.
  • The building's design features exposed girders that support the entire roof structure.

Advanced Usage

• "Box girder": A girder with a hollow, rectangular cross-section, offering high strength and efficiency, commonly used in modern bridge construction.

  • The new viaduct utilizes a series of concrete box girders for its main span.

• "Plate girder": A girder fabricated by welding or riveting steel plates together, often in an I-shape, used for heavy-duty support.

  • The factory floor was reinforced with a robust plate girder to support the heavy machinery.

Variants and Related Words

• Beam (n): A long, sturdy piece of timber, metal, or other material used as a support. (A is a specific, heavy type of beam.)
• I-beam (n): A steel beam with a cross-section shaped like the letter 'I', a common type of girder.
• Joist (n): A length of timber or steel supporting a floor or ceiling; typically smaller and more closely spaced than a girder.

Synonyms

• Support beam
• Main beam
• Structural beam

Related Phrases

• "To rest on girders": To be supported by or built upon girders.
  • The entire upper floor of the warehouse rests on a network of steel girders.

Noun

1. a beam made usually of steel; a main support in a structure