Designing a superior anchor bolt chair requires balancing several geometric and structural factors defined in the AISI specifications : : The width ( ) and length ( ) are determined by the anchor bolt diameter ( ) and eccentricity (
: To transfer tension from the anchor bolt to the shell or column via a "chair" mechanism that provides sufficient height to distribute the load.
: A minimum of 1/2 inch is required between the bottom of the chair and the concrete foundation for leveling and grouting. Eccentricity (
Traditional anchor bolts rely on wooden templates or string lines for placement. AISI E-1, Part VII mandates that lock the anchor bolt into a rigid, pre-punched seat.
): Calculated by treating the plate as a beam with partially fixed ends.
: Following this methodology ensures compliance with industrial codes like , which explicitly references AISI E-1, Volume II, Part VII as an acceptable procedure for anchor bolt chair design. Durability and Alignment
