CE Board Exam Review: The Conjugate Beam - Best Beam Deflection Method?

Possibly the best beam deflection method there is! The conjugate beam beats all other methods such as Double Integration Method (DIM), Area Moment Method (AMM), Superposition, Virtual Work Method, and Castigliano's Theorem. Handa ka na ba sa Civil Engineering Board Exam sa November 2020? If you still need to review, we've created a Virtual CE Coaching Program for 6 months starting June 15, 2020!

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[sofiaabegalealabado]

ang aesthetic ng viddd ang ganda panoorin!! <3

[civl]

Can you do a more complicated example and show that this is still better than direct integration

[jeromecagnayo]

Nice video sir! Sa tingin ko lang po sir mas madali si 3ME sa problem na yan hehe.. kung master lang mga 3 moment factors sktch lang ng horizontal line from the point of interest sa elastic curve parallel sa original beam then mapapansin na equal si h_A and h_B then kunin lang yung moment sa point na yun then equate haha 😀 pero may mga case na madali, meron rin matagal haha decide nalang kung ano mas less time consuming 😁

[johnpauloreyes]

During my board exam review last year favorite ko talaga tong deflection method na to...

[hiel]

Kippap Education:
I solved it again and got 10.99 mm deflection.

Double check mo if you got:
Reaction ng beam:
22.5 upwards at point A
20 upwards at point B

Areas ng MDP
Triangles: 101.25, 90, -22.5
Spandrel: -16.875

Reaction ng conjugate beam:
77.625 downwards at point A

Moment at point D:
142.875

Question:
Sir, base po sa computation ninyo how did you solve the spandrel po? Kasi iba po yung na compute ko, which is 1/4(3)(-15)=-11.25 base po sa formula ng area ng 3rd degree spandrel.

[markrius_]

Thank You po, its help me a lot lalo pa’t online class kami. 🙌🏻

[jaeronabug]

Thank you po, nakakapgreview kahit nanonood lang hehe

[joshuamagno]

kung saan lang po ba hinahanap deflection dun po mag cut pwede po ba yun??? thanks po in advance

[kayeabaygar]

THANK YOU SIR...very helpful po talaga..

[simplemathguy]

Yung sa direction ng slope po pano po yun? With respect to the horizontal po yan diba? Initial position to deflection position ba sir? Like if unform load sa simple beam, sa left part is clockwise and sa right ay counterclockwise?

[luisgabrielcabico]

Ano po ang prefer niyong method if maximum deflection po ang hinahanap?

[airamaybantugan]

Hello po, bakit positive moment po yung 18KN.m? Possible answer po ba ay dahil nasa right side ng fixed support at positive effect yung moment sa beam?

[leoleo]

sir bakit po positive yung moment nyo na 18 kahit counterclockwise

[sherylbua]

bat sa transformed beam mo sa left side roller wala ka nilagay reactions sa right side lang yung 154

[sherylbua]

what if yung hinahanap na slope at deflection ay wala sa gitna at nasa pinaka dulo na point?? how to cut it and what moment areas are we going to use?? kase if sa point C like the example sa gitna ang cut what if the question is find the slope and deflection at point B

[mixhaelcastro]

Bakit po 18 po ang height pero dun sa moment by parts negative na yung h?

[meyaczarina]

hindi ko po makuha ang slope ng inyong exercise.

0.3049 degrees po nalabas sa akin

[ralphanthonymallillin]

Bakit po ndi niya na ginagawa ung oag multiply ng area sa rectangle or triangle dun sa Shear or Moment???

[RandomStories]

Sir pwede nyo ba isolve yan gamit ang DIM?

[johnalexanderbello-mpxi]

sir pwede po mas paexplain kung san nakuha mga minultiply sa value nung kinukuha yung reaction sa B