Structural · S-B57TS

Typical Column Weld Access Hole

Materials

Steel Glass / Glazing

Elements

Columns

Connections

Welded Connection

About this detail

Standard geometric parameters and edge preparations for structural steel column weld access holes. The configuration features a thermal cut access hole with a three-eighths inch minimum radius and a surface roughness meeting AWS D1.1 criteria. Dimensioning requirements dictate a height of one and a half times the web thickness or one and a half inches minimum, with specific exceptions for lower shafts and heavy W14x665 and larger shapes. At column-to-base plate conditions, a single bevel complete joint penetration groove weld is specified with a root opening and backup bar, matching the bevel requirements of AWS D1.1.

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