Posted by BIJUMON Nairabout 3 years ago
What is Condition A Shear and Condition B Shear ? What is Condition A Tension and Condition B Tension
I am designing a pilaster with base plate and anchor bolts to support an HSS column. There is a tension force and shear force acting. During the analysis and design using Profise, I found that there are Condition A Shear, Condition B shear, Condition A Tension and Condition B Tension. What these terms indicate ?
1 Reply
Posted by Danielle Filerabout 3 years ago
Hi Bijumon,
PROFIS Engineering has two options available for the evaluation of reinforced concrete:
- Supplementary Reinforcement: For post-installed and cast-in-place anchors, supplementary reinforcement will not transfer the load to the concrete member but will help to restrain concrete breakout, per the ACI 318-14 Anchoring-to-Concrete provisions. If utilizing this feature, Condition A and Condition B can be chosen for Tension and Shear, which will modify the f-factor and ycp,N (or ycp,Na) used in the concrete breakout calculation. In PROFIS Engineering, the use of supplementary reinforcement will not modify the pullout or pryout capacity calculations; this is not defined in ACI 318-14 Anchoring-to-Concrete provisions. For more information, please reference page 247 in the PROFIS Engineering Design Guide here.
- Anchor Reinforcement: For cast-in-place anchors, PROFIS Engineering allows the user to select anchor reinforcement in tension and/or shear to prevent concrete breakout, thus stating that the concrete breakout utilization is 0%. This feature will not be available for post-installed anchors due to the complexity of trying to properly place the anchor in the reinforcement, as discussed in ACI 318-14 Anchoring-to-Concrete provisions. For post-installed anchors, the engineer on the project can use engineering judgment to decide to ignore the concrete breakout calculation based on their knowledge of the reinforced concrete member.
Regards,
Dani