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A box girder is a closed section made from welded plates. Its torsional stiffness suits curved or skewed alignments, and its smooth exterior is easier to paint and keep clean.
Typical considerations
- Internal access and ventilation for inspection and coating, or a sealed-box design.
- Weld procedures and distortion control for long plate seams.
- Segment size and weight for transport and lifting.
Final member sizes, details and specifications are determined by the engineer of record for each project. This page describes general practice and does not replace project-specific engineering.
この内容は一般的な技術情報です。プロジェクト固有の構造設計に代わるものではありません。構造設計は、適用基準および所轄官庁の要件に従い、資格を有する技術者が実施または承認する必要があります。