| 52 / | HD | STATIC STRUCTURES (E.G., BUILDINGS) |
| 223.1 | DF | WITH COMPONENT HAVING DISCRETE PRESTRESSING MEANS {7} |
| 223.8 | ![]() | .~ Beam, girder, or truss construction {3} |
| 223.9 | DF | .~.~> Composed of abutting sections |
| 223.11 | DF | .~.~> Connecting adjacent ends of monolithic beam or girder |
| 223.12 | DF | .~.~> Homogenous design (e.g., all metal) |