the ultimate response to bending moments both in reinforced and prestressed concrete are similar due to the maximum compressive concrete resistance. In fact, the ultimate bending moment can be formulated as M=ZP, where M is the bending moment, P is the concrete compression, or the steel tension and Z is the flexural depth that depends on the section shape, Z=(0.65 to 0.85)*d
Magnel was the father of a graphical method, based on 4 inequations, for optimazing the prestress force, this Magnel diagram plot the possible region 2D with P in Y axis and P*e in x axis
Bonded post-tensioning would have anchors at the ends, so the initial stresses (prior to grouting) would be only transferred at the ends of the member where the anchors are located.
ENJOYED THIS LECTURE AND UPGRADE MY MISSING KNOWLEDGE AND SKILLS.
the ultimate response to bending moments both in reinforced and prestressed concrete are similar due to the maximum compressive concrete resistance. In fact, the ultimate bending moment can be formulated as M=ZP, where M is the bending moment, P is the concrete compression, or the steel tension and Z is the flexural depth that depends on the section shape, Z=(0.65 to 0.85)*d
Magnel was the father of a graphical method, based on 4 inequations, for optimazing the prestress force, this Magnel diagram plot the possible region 2D with P in Y axis and P*e in x axis
Very well explained
Is this material commonly used today in large scale projects ?
Very good lecture, thank you
Does bonded type post tensioning systems dont have anchors at the ends? Only the bond through grout is responsible for transmitting stresses?
Bonded post-tensioning would have anchors at the ends, so the initial stresses (prior to grouting) would be only transferred at the ends of the member where the anchors are located.
David Garber Your explanation is great. Kudos to you for making such great videos.
I am happy to work with CORESLAB.
Can I have Slide? Professor
Thank you 🙏
Nice presentation ❤️❤️
good lecture, thanks
Very good Lecture!
what about retaining walls, can they also be constructed by prestressed concrete?
Great ... but could you please tell us about how to demolish post tension buildings....thanks