HRC Presentation Assessment - Headed Reinforcement Corp.

"Structural advantages of, Code Provisions for and Practical Applications of HRC Headed Bars and Mechanical Couplers"

Thank you for attending our webinar! in order to receive your PDH credit, you must complete this assessment with a score of 70% or better.

Please answer the following 10 questions.

Name*

First Last

Company*

Date of Presentation*

Email*

1. What is a headed bar?*

2. What are the primary practical benefits of using headed bars?*

3. How do ACI 318 compliant headed bars provide for development and anchorage of reinforcing bars?*

4. What are the 2 significant changes to development of headed bars in section 25.4.4 in ACI 318-19?*

Bar size limitation has been removed
Grade limitation has been removed
Spacing requirement has been decreased and revised from clear spacing to c/c spacing.
A and B
B and C

5. What are the significant changes to the headed bar development length expression in ACI 318-19?*

6. What ASTM specification governs headed bars?*

7. What class of head, defined in the ASTM A970 specification, is required by ACI 318 and IBC?*

8. Do HRC 670 field installed heads require any end prep on the rebar they will be attached to?*

9. What ACI Code section defines the base requirement for mechanical splices?*

10. Define the requirements of Type 2 mechanical splices.*

Develop 1.25fy (specified yield strength) of the bar
Develop 1.25fy (specified yield strength) and develop the specified tensile strength of the bar
Develop 1.50fy (specified yield strength) and develop the specified tensile strength of the bar

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