ACI Adhesive Anchor Installer Certification Exam

What is the significance of the sustained load reduction factor for adhesive anchors under long-term tension?

Bond strength can creep under sustained tension, so a reduction factor lowers allowable sustained loads Sustained loads always increase bond strength through consolidation The reduction factor only applies to shear-loaded anchors Sustained load reduction applies only in seismic zones

Correct Answer:

Bond strength can creep under sustained tension, so a reduction factor lowers allowable sustained loads

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