Thanks BAretired, for your continued support.
But sorry, I don’t understand your reply, because the summation of moments that I called “AC”, is for the entire horizontal member. Actually, I should have labeled the point of application of force F as “D”, to call this summation “AD”. So, there...
Greetings, everybody,
Once again I have to start with an apology for another month and a half of silence, I have been busy with other projects and tasks.
Thanks once more to BAretired for the verification that three methods: Moment Distribution, Slope Deflection, and Kleinlogel book formulas...
Sorry, I am not proficient yet attaching files. Here it is.https://files.engineering.com/getfile.aspx?folder=77b103e3-c8d7-4987-be51-3eb315cafd94&file=Kleinlogel_and_MDM_Bracket_Calcs.png
Hello everybody,
Once more I have to start my post apologizing about my delay, because in the last month and a half I had to work in other projects.
Well, thanks once more to BAretired, not only for your recent post verifying Kleinlogel using Moment Distribution Method (but later I...
And here is the second file attachmenthttps://files.engineering.com/getfile.aspx?folder=46b452a1-c9d2-43b2-9455-a4049fd95d7b&file=Slp_and_Defl_Example_Solution.png
Greetings, everybody,
I apologize about my delay to reply, in the past two weeks I had to work mostly in another project, but managed to squeeze some time to do new calculations based on the replies I received here, for which I am grateful. But finally today I can post an answer, unfortunately...
Thank you, JStephen, for your second reply, and no problem about your previous reply, sometimes we can't resist making a joke, but most good jokes are sarcastic or politically incorrect. Maybe I also over-reacted.
You pointed that many methods don't consider axial deformation, a point that was...
Thank you, 271828, for your second reply, and also thanks to steveh49, this reply also answers his post
But I don't agree with what you wrote "This bracket is not a typical configuration for which I would expect to find closed-form solutions in a handbook" because, as I have written before...
Thank you, BAretired, for your second and third replies.
And yes, those snapshots you uploaded are what I have been using, I just attached them to reply to rb1957, but I don't know how to include pictures directly in this page. Let me copy here what I wrote to rb1957 about the problem I found...
Thank you, rb1957, for your reply.
I am going to try the iterative method you explained, it starts in a similar way to what I discussed earlier in this thread with desertfox. But I think that the iteration you described solves my concern, which I mentioned with desertfox about an excessively...
Thank you, centondollar, for your reply.
Sorry, I couldn't follow what you wrote about determinants and buckling. I used determinants when I tried to solve the 4 x 4 system I got by writing slope-deflection equations, a method which, as I wrote earlier, I learned only a few weeks ago (I am a...
Thank you, desertfox, for your reply.
I thought about doing what you wrote, but then searched and applied other methods, because I thought that the deflection I would obtain considering member AD as a cantilever beam would be much more than the actual deflection, and then the force to bring it...
Thank you, dik, for your second reply. Actually, you are the only one so far that has repeated.
You are right in your question, so I am sorry that I haven't indicated that, when I say that my calculation failed, is because the summation of moments at a particular point (from basic Statics that...
Thank you, 271828, for your reply.
And about what you wrote on "sharpening the pencil" I would look bad if I would submit the design report to our client, which is another company, with that all-pinned approximation, and then their reviewer would reply to me "oh, you didn't know that in such &...
Thank you, Celt83, for your reply.
To get the determinants of matrices, I am simply using Excel, it has a formula that calculates them directly. Of course, studying matrix analysis as you recommended me would be interesting, but I would need to invest that time instead in studying structural...
Thank you, BAretired for your reply.
My complaint to JStephen was not about his support in favor of the all-pinned approximation, but instead about the sarcasm he used, but that is fine, I have a thick skin, and can discriminate between useful and useless answers.
Well, both him and you...
Thank you dik for your reply. But that "simple 2D frame analysis" you mentioned is what I tried to do, but failed, with the formulas from the Air Force Manual, from Roark, and with the Slope-Deflection Method. So, I am running out of options, and I am a mechanical engineer, not civil or...
Oh! And I forgot to mention that of course you can't know if I need to fabricate thousands of those brackets, instead of "half-hour and $20" as you wrote, and then optimizing the solution is well worth.
Well JStephen, I certainly don't appreciate the sarcastic tone of your response, starting with the "If you're just out of things to do", which evidently you can't be aware of what I need to do at my job, and then you continued your sarcasm with a long list of negligible factors that any engineer...
Greetings everybody,
I am sorry that my question has already been presented in this forum, but the previous answers, at least those two that I have been able to find here, are not adequate, as I explain later.
My situation, as shown below, is that of the second-simplest possible structure: a...
