Prestressed Concrete (Introduction) PC1

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Learning concrete does not need to be boring. My new iBook covers all the different aspects of concrete engineering (including history of concrete, constituents of concrete, properties of fresh and hardened concrete, mix design, durability of concrete structures, sustainability of concrete) in an engaging way using the
power of iBook. Photographs of real life structures and illustrations are widely used throughout the book to aid learning and also to give context to the materials presented. Interactive quizzes makes the readers engaged and help deep learning.

[@sauce343]

Thank you very much for these videos on prestressing. I'm doing a research paper on the topic, and these videos really expanded my knowledge on the subject and actually inspired additional ideas of what to write about. Keep up the good work!

[@MemeNiche]

the basic concept is clear now, finally, thank you it was very helpful

[@FelixT.a]

very detailed and comprehensive lecture!

[@kssks5120]

Very clearly explained by you sir, thanks a lot

[@andrewanim5432]

Thank you for your post. Very inspiring.

[@user-tl1gi5mn7j]

ruclips.net/p/PLtElM8k8rEY3C7PkxzICkMXRz7687C_6F, refer this one also

[@lawrencemwangi8846]

Thank you

[@prastutbhattarai2227]

love this lectures..wish u could be at ecu

[@riddhigupta1292]

this informations are really helpful

[@JKS323]

Do you have the pdf version of all the lectures in prestressed concrete ?

[@funnyworld9920]

this video is helpful

[@hddevani]

nice and useful...

[@ahehehinnouanselme7695]

Actually I am tying to find some problems with prestressed concrete for cable stayed bridge ( like small topic )

[@mdizuwanmdintam8324]

hello Rabin..do u have any videos about external prestressing design?i just want to know the design diffrence between external and internal prestressed.

[@RabinTuladhar]

Hi Izuwan
Sorry I do not have that video at present. But I am in process of making a whole new set of lecture videos. I hope to include the one you asked for as well. Thanks.
Rabin

[@er.gauravmahure8925]

good work bro....but how do you draw on this video..... awesome work thanks...😎😎

[@debz7909]

in simple terms what would you say is PRESTRESS AND STRESS BEAM?

[@lavkumargupta1143]

thank you sir
, can i get this pdf pls sir

[@husseinhamzah7574]

Useful

[@ankitathakur8063]

Very nice

[@gnidnoeled786]

In prestressed concrete beam, why rebars are provided or added although prestressing tendons are there to strengthen the compressive capacity of concrete beams? What are the real reasons?

[@RabinTuladhar]

Reinforcing steel bars can be used together with prestressing tendons in concrete structures. Prestressing tendons does serve as tensile steel in the beams, however, if more reinforcement is required normal reinforcing steel can be used as well.

[@mahmoud7548]

Hello Rabin
i need this PDF ?
Cna u give me a link to Download it ?

[@RabinTuladhar]

My interactive iBook "The World of Concrete" is available on iBook store now. First 20 who sends me an email at [e-mail] will get a free download code. To find the book, in your iPad or iPhone go to iBooks app and search for "The world of concrete". You can also click the link below:
"geo.itunes.apple.com/us/book/the-world-of-concrete/id1277052635?mt=11"
First 20 to send email to me ([e-mail]) will get a free download code.

[@rnegoro1]

You do realize you need to do maintenance on prestressed like every decade to 2 decades, the cables in the middle needs to be replaced ?

[@RabinTuladhar]

Hi Neoro, prestressed concrete structures do need to regular inspection and maintenance if required. Hence, external prestressing has become popular these days in bridge construction as inspection of external prestressing wires are much easier and it is easier to replace them as well.

[@rnegoro1]

Thanks for the reply.

[@MrSteefn]

Rabin Tuladhar what about partial prestressing ?

[@mrlazda]

That depends from use method, in pre-tensioned and bonded post-tensioned concrete there is no possibilities of replacing tendons, and it is virtually maintenance free (there was problems with bonded post-tensioned bridges in Europe due to poor workmanship or quality control during construction).
In unbonded post-tensioned and external post-tensioned concrete there is need for regular maintenance and replacing tendons if it is needed (external post-tensioned concrete have many advantages over other methods and can be retrofitted to existing constructions or used to correct problems from other methods)