Practice Test GeeksAAI - American Concrete Institute Adhesive Anchor Installer Certification Practice Test
← All AAI Flashcard Decks

AAI Load Calculations & Structural Requirements Flashcards

6 cards from real AAI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 AAI Load Calculations & Structural Requirements flashcards as text

  1. In seismic design categories C through F, what additional requirement applies to adhesive anchor installations?

    Answer: Only adhesives with seismic qualification testing (ICC-ES AC308) may be used

    IBC and ACI 318 require seismically qualified adhesives tested per AC308 in Seismic Design Categories C–F due to the cyclic and dynamic nature of earthquake loading.

  2. What does the phi (φ) factor in ACI 318 anchor design represent?

    Answer: A strength reduction factor that accounts for variability and uncertainty in capacity

    The φ factor is a probabilistic strength reduction that ensures the design capacity (φNn) is less than the nominal capacity (Nn), accounting for material variability, workmanship, and model uncertainty.

  3. For combined tension and shear loading on an adhesive anchor, which interaction equation does ACI 318 require?

    Answer: (Nua/φNn)^(5/3) + (Vua/φVn)^(5/3) ≤ 1.0

    ACI 318 uses a 5/3 power interaction equation for combined tension-shear, which is less conservative than a linear interaction when one load component is dominant.

  4. What is the 'critical edge distance' (cac) for an adhesive anchor, and why does it matter?

    Answer: The minimum edge distance to develop full characteristic bond strength without reduction

    When the actual edge distance is less than cac, the characteristic bond strength must be reduced to account for reduced confinement near the concrete edge.

  5. How does the anchor installation condition (Category 1, 2, or 3) affect the anchor design in ACI 318?

    Answer: Higher installation category numbers reflect less controlled conditions and require lower φ factors

    ACI 318 ties the φ (strength reduction) factor to installation and inspection conditions — Category 1 with continuous inspection permits higher φ values than Category 3 with no special inspection.

  6. What is the role of the anchor's effective embedment depth (hef) in the ACI 318 concrete cone breakout equation?

    Answer: hef raises the breakout capacity to the 1.5 power, making deeper embedment highly effective

    The ACI 318 concrete cone breakout equation uses hef^1.5, meaning increasing embedment depth has a super-linear benefit on cone breakout capacity.