Structural Post-Installed Anchor Design Methods Permitted by Building Codes

1. "Concrete" includes all concrete base materials such as concrete on metal deck and precast concrete shapes.
2. "Masonry" includes all masonry base materials such as hollow and grout-filled CMU and unreinforced brick masonry.
3. Code interpretations vary. Confirm with the local Building Official.
4. Not applicable since masonry is beyond the scope of this design method.

Building codes and material standards have traditionally allowed Designers to take a one third allowablestress increase on the calculated design capacities of some building materials and components when designing for forces generated from wind and/or seismic events. Newer codes and standards only allow the allowable stress increase to be taken when using an alternate set of load combinations. The table below summarizes when allowable-stress increases are permitted.

1/3 Allowable-Stress Increase for Structural Post-Installed Anchors

1. "Concrete" includes all concrete base materials such as reinforced concrete, concrete on metal deck and precast concrete shapes.
2. "Masonry" includes all masonry base materials such as hollow and grout-filled CMU and unreinforced clay-brick masonry.
3. Not applicable since this code does not use traditional ASD for post-installed anchors.
4. Only when indicated in the applicable load table in this catalog and when alternative basic load combinations as prescribed in the code are used..

Structural Post-Installed Anchor Selection Guide

1. Allowable loads for traditional ASD are derived from applicable test methods such as ASTM E488, ASTM E1512 and legacy ICC-ES acceptance criteria AC58 and AC60.
2. Code listings may not be available for all products/applications cited in the table. To verify code listed products/applications refer to code reports or contact Simpson Strong-Tie.
3. Installed into top surface.
4. Unreinforced clay brick masonry

1. Allowable loads for traditional ASD are derived from applicable test methods such as ASTM E488, ASTM E1512 and legacy ICC-ES acceptance criteria AC01, AC70, and AC106.
2. Code listings may not be available for all products/applications cited in the table. To verify code listed products/applications refer to code reports or contact Simpson Strong-Tie.