: The standard provides specific calculations for fillet welds to ensure the load is safely transmitted from the chair to the structure.
Volume II, Part VII details dimensions that consider practical installation. Anchor bolts are rarely placed perfectly. The "better" nature of these chairs includes the provision for "oversized holes" in the chair cap plate. This allows for field adjustment—moving the column slightly to align with the concrete anchor rods—without compromising the structural seating. Once aligned, the chair design allows for proper washers and leveling nuts to secure the structure before grouting. aisi e 1 volume ii part vii anchor bolt chairs better
The AISI standard applies wherever a shell (cylindrical steel wall) must be anchored. Its primary applications include: : The standard provides specific calculations for fillet
Anchor bolt chairs are devices used in construction to properly position and secure anchor bolts in place, ensuring they are accurately located and firmly held during the pouring of concrete. They are commonly used in applications involving steel structures, machinery bases, and equipment foundations. The "better" nature of these chairs includes the
The AISI E-1 guide uses specific notation for calculating the optimal dimensions of a chair assembly: Top Plate Dimensions : Top-plate width along the shell. : Top-plate length in the radial direction.
For high-seismic applications where tanks have thin shells, anchor bolt chairs designed to AISI E-1 specifications are the preferred choice for ensuring long-term structural integrity and maintenance accessibility.
An anchor bolt chair is a specialized structural component—usually made of steel—designed to hold anchor bolts securely in their exact, intended positions before and during the concrete pour.