Prestressed Concrete Chapter 1 Principles of Prestressed Concrete Problem 1 (PH)

[@cebox]

CORRECTION: We forgot to insert the "c" in the Bending Stress Equation (Mc/I). Here's the correct answers at a) and b): a) fbot = + 1.613 MPa (T) ftop = - 16.159 MPa (C) b) fbot = +4.887 MPa (T) ftop = - 16.524 MPa (C)

[@sethfrancisjawod4015]

sir good eve, regarding po ba sa final stage according sa correction nyo, icocorrect din yung final stage diagram? yung bottom fiber will be tensile and yung top fiber will be compressive? nalito po kasi ako sa direction ng tensile at saka compressive sa final stage, salamat po

[@maure_en]

hindi po ba sa a) fbot is -16.1586 MPa then ftop po is 1.6131 Mpa

[@beajamilleelmin4735]

@@maure_en sameeee

[@eunicerodil2640]

Ang ganda po ng sulat. 💗

[@cebox]

Thank you! God bless po!

[@vertinRN]

Sir, Pag initial stress lang ang sinabi, kasama ang M_o Pero pag may binanggit na na initial "prestressing" force, duon yung wala pa M_o?

[@paclaoncindyg.956]

from what I knew po base sa binigay na sample problems sa school namin, yes po pagsinabing prestressing force only hindi po kasama ang moment due to load. correct me if Im wrong po thanks hehe

[@vertinRN]

@@paclaoncindyg.956 opo tama po, salamat.

[@cebox]

Yes tama po kayo pareho. 1. Kapag due to prestressing force only, axial stress at bending stress due to prestressing force. 2. Kapag initial stress, dun na kasama lahat, including the bending effect of loadings. (Sorry for the very late reply. Naging abala po sa pagpapaorder ng aming CE Box Merch tinyurl.com/4mvnu6yu and work stuff).

[@jeromemitchiegutierrez6465]

Salamat sir CEBox naintindihan ko na kapag initial ay weight of the beam Lang ang sinasama (Wo) Thank you and God Bless you sir CEBox

[@generaleangelkateq.1716]

Sir hindi na po ba need magmutiply ng 0.80 in solving? Kasi po nasa problem consider 20% loss of prestress at service load?

[@moonbin2321]

na-apply na siya sa Peff, bali 800kn(1-20%) = 640kn

[@cebox]

@moonbin2321: Thank you po for clarifying his/her concern po! God bless po! 😊😇

[@vitugcatherinefayep.1768]

Bat di po ata nasali sa calcu yung 312.5 dun sa MC? 🥹

[@denzelcuyson8126]

bakit sa mga na solve ko pong problem di kasama yung C?

[@markanthonyfidelson8947]

Sir bakit po di ginamit yung 1.2 DL + 1.6 LL ???

[@cebox]

Ang basic concept po kasi ng Prestressed is from WSD, which is based on service loads alone. Hindi po sa UD na kung factores loads ang ginagamit. (Sorry for the very, very late reply as CE Box is very busy with his Master's Degree, Accreditation, Work Stuff, and Life. Thank you for understanding. Keep in touch with CE Box as we plan to do more video tutorials.)

[@markharveytomas6504]

sir pacheck po yung fbot. ang sakin po is -16.1585

[@cebox]

ftop po yan. (Sorry for the very late reply. Tinatapos lang yung Thesis namin sa Masteral. Hoping this year, maging okay na lahat. God bless po!)

[@jaykeeebardone6055]

@@cebox Good evening po sa fbot po -16.158 ang sa akin

[@lysterfernandez3214]

Kuya ano po reference book na gamit nyo po dito? TY po

[@cebox]

Hello po. So far, halo halo concept nito e. Wala ako specific na book na ginagamit. And yung mga examples lang is based sa mga review books po. (Sorry for the very, very late reply as CE Box is very busy with his Master's Degree, Accreditation, Work Stuff, and Life. Thank you for understanding. Keep in touch with CE Box as we plan to do more video tutorials.)