SA57: Reaction Influence Line for Indeterminate Beams
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- Опубликовано: 4 окт 2024
- This lecture deals with a quantitative approach for constructing reaction influence line for indeterminate beams. A pdf version of the lecture is available online at: Lab101.Space/pd...
For an interactive example, visit: Lab101.Space/iE...
Additional content can be found at: Lab101.Space
Invaluable contributions of Galina Jorgic in designing and creating the video lectures and related content are gratefully acknowledged.
it's easy the way you explain to us
Great video thank you very much
Can you make a video tutorial for Three-moment equation and method of least work?.please ..
Thank you !!
Thank you for the great video. If the unit load is placed at n = 1 m, the solutions at 5:48 give RA=13/32, RB=39/64, RC=-1/64. But these do not seem to satisfy moment equation (about A, ccw = +ve) as -1*1 + 2*RB + 8*RC = 0.09375, not zero?
Thanks for pointing out the inconsistency in the formulation. At 5:00, the expression for RA is incorrect. It should have been written as: Ra = (n^3 - 36n + 64)/64. Given that Rc = (n^3 - 4n)/192, the correct expression for Rb becomes: (112n - 4n^3)/192.
Therefore, at n = 1, Ra = 29/64, Rb = 9/16, and Rc = -1/64. Now the moment expression about A becomes: (1)(1)-(9/16)(2)+(1/64)(8) = 0.
@@DrStructure I see, thank you for the prompt reply. BTW your videos are truly amazing. If there's an Oscar or Grammy Award for structural mechanics videos, you definitely deserve one.
Can you make a video on design of structure
Yes, eventually we will get to structural design topics.
Hello madam, in order to be able to use the slope deflection method I need to memorize the formulas?
Yes, if you don’t have access to your notes or a textbook, to apply the method, you need to remember the two slope-deflection equations as well as the equations for calculating the fixed-end moments.
@@DrStructure is it practical? I mean anyone could do it if he knows the formula unlike the force method
Yes, it is practical. When you use the method several times, the equations can be recalled from memory with ease.
Hie Dr Structures
Do you have have any other links to your videos on other programs other than Structures, eg Mathematics, Mechanical engineering, transport engineering etc, i want to encourage others students from different programs because you are very excellent.
Thanks for the comment and the inquiry. Our focus pertains to structural mechanics/engineering topics only. However, it is our hope that others could step in and create comparable, or even better and more effective content for other engineering areas/topics.
@@DrStructure Ok thank you so much. You have clarified everything.
Good day Dr Structure
Is the next SA video going to be on Shear influence on indeterminate structures or its now something else?
The next SA video will cover the analysis of indeterminate tapered beams.
Is that equation is applicable to all cases??
No, the reaction equations are derived based on the specific beam lengths (i.e., 2 m and 6 m). But, you can generalize the equations for any length beam using the procedure explained in the video.
Do u have videos on shear center , shear flow , torsion
Not at this time.
@@DrStructure when??
Cannot even give you an estimate on this. But I could say not in the immediate future as we have a few other lectures in the pipeline already.
Good day Dr Structure
Are you going to get to Finite Element Method anytime soon.
Also how soon is SA58 video?
SA58 should be ready in about a week. Lectures on Finite Element Method are not forthcoming any time soon. There are some other grounds to cover before we can focus on FEM related topics.
@@DrStructure Thank you for the response.
I will make use of my available resources on Finite Element Method.
As of SA 58, will be glad to get it when it becomes available.