Can someone clarify the difference in behaviour between passive reinforcement and post-tensioning?
Thank you
You question and details mentioned are not matching? Are you interested to know difference between passive anchors and post tension anchors or passive reinforcement and post-tensioning?
Based on ChatGPT's answer: the main difference between these two types of anchors is in the way they transfer loads.
Passive anchors are also known as dead-end anchors or gravity anchors. These anchors rely on their weight and friction to resist external loads. They are installed by drilling a hole into the ground or into a structure, inserting a tendon or cable, and grouting the hole around the tendon. The tendon is then stressed by applying a load to it, and the anchor resists the load through friction between the grout and the tendon. Passive anchors do not have any post-tensioning mechanism, meaning they cannot be adjusted or tightened once installed.
Post-tension anchors, on the other hand, use a post-tensioning system to transfer loads. They are also known as live-end anchors or active anchors. These anchors are installed in a similar way to passive anchors by drilling a hole and inserting a tendon or cable. However, in the case of post-tension anchors, the tendon is not permanently fixed in place. Instead, it is tensioned by applying a load to it, and the anchor resists the load through a combination of friction and the post-tensioning force. Post-tension anchors can be adjusted or tightened as needed to accommodate load changes or maintain the structure's integrity.
In summary, the main difference between passive anchors and post-tension anchors is that passive anchors rely on their weight and friction to resist loads. In contrast, post-tension anchors use a post-tensioning system to transfer loads and can be adjusted or tightened as needed.
For visual comparison, you can see Figure 4 in this research article:
Conference Paper Use of Prestressed Soil Anchors in the Construction of an Un...
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