Hi,
I am working on the 80' prestressed concrete beam with a few debonded tendons. (Picture below)
I am trying to see how moment capacity changes with the change of debonded length of the tendons.
Below are the outputs for the provided moment with the debonded length of 1'.
When the debonded length is changed to 15' the provided moment increases (picture below), which is counterintuitive. I am trying to understand why the "moment provided" increases when the debonded length is increased.
When the Prestressing tendons apply load to the structure, the resultant forces and moments generated can be considered as a combination of primary and secondary or parasitic effects. No secondary moments are set up for a theoretical beam with a concordant tendon arrangement, but this rarely occurs in practice.Clover Dashboard