Learn how to properly perform Pre-Installation Verification (PIV) testing for DTIs (Direct Tension Indicators) in accordance with AISC/RCSC sections 7, 8, and 9. In this demonstration, VP of Sales and Technical Support Rob Westover walks through each step, from snug-tightening to final inspection, showing how to confirm your bolt assemblies achieve the correct tension before installation.
This video covers:
- Proper setup for PIV testing using a Skidmore or hydraulic load cell
- How to achieve a snug-tight condition and apply final tension
- Correct use of a feeler gauge for DTI inspection
- Key criteria for passing or failing a PIV test
- Why performing PIV ensures safer, more reliable bolted connections
Whether you’re an engineer, inspector, or ironworker, this guide will help you verify bolt tensioning accuracy and meet project specifications with confidence.
Visit www.appliedbolting.com for more tips.
#BoltTensioning #StructuralEngineering #DTIWashers
01:08 Snug-Tightening
01:27 Intermediate Verification
02:02 Pretensioning
02:18 Final Verification
