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Participant

Join Date: Jan 2017
Posts: 3

Statically Indeterminate Beam Question

01/13/2017 5:48 AM

Hello, engineers.

I have a question, actually, it is a solved problem but I want to know the solution. in reference books, all fixed end moments (or in another word equivalent nodal forces) of the different beam supports are calculated and we are using them in different methods.I could calculate many of them using different methods of solving statically indeterminate beams but I want to know how I can calculate this one.

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Guru

Join Date: Apr 2010
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#1

Re: Statically Indeterminate Beam Question

01/13/2017 11:22 AM

The sum of forces equals zero. The sum of support forces = imposed weight.

The sum of moments equals zero. Bending moment at any point equals the moment of the forces applied (support and weights). The moment is calculated as force x distance.

If you have more variables than equations, it is indeterminate.

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#2

Re: Statically Indeterminate Beam Question

01/13/2017 11:25 AM

..."Considerations in the material properties and compatibility in deformations are taken to solve statically indeterminate systems or structures."...

https://en.wikipedia.org/wiki/Statically_indeterminate

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Participant

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#3

Re: Statically Indeterminate Beam Question

01/13/2017 2:12 PM

I think no one get my question, I know it is Indeterminate, but I want someone to solve it for me with any of the Indeterminate beam methods such as conjugate beam or slope deflection, because I couldn't.

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#4
In reply to #3

Re: Statically Indeterminate Beam Question

01/13/2017 2:51 PM

Oh, they DO get it.

Asking someone else to do your homework for you doesn't fly here Kemosabe.

Perhaps you should ask your teacher/professor/TA for help if you don't understand how to get started because they might need the feedback on their performance.

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Participant

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#6
In reply to #4

Re: Statically Indeterminate Beam Question

01/13/2017 6:25 PM

I have done in the case of rectangular load using conjugate beam method, but the portion of the moments in the case of triangle, does not fit.

judging people when you do not know what they really are doing is not nice! If can solve the problem, it could be appreciatable, otherwise, you are wasting your time by writing for me this useless advice.

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Guru

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#7
In reply to #6

Re: Statically Indeterminate Beam Question

01/14/2017 3:15 AM

Sir Brave Robin has provided some excellent information for which you have a dire need. Even though you didn't get it the first time, don't give up.

Another couple points:

- Your admonition of 'judging' is off base. Judgements are just acceptable, making Judgements is absolutely necessary to have any meaningful intentional purpose in the world. Railing against 'judging' only betrays fundamental lack of understanding.

- Being 'nice' is often not helpful.

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#8
In reply to #7

Re: Statically Indeterminate Beam Question

01/14/2017 3:47 AM

'Judgements are just acceptable...'

Should read, 'Judgements aren't just acceptable...'.

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#5

Re: Statically Indeterminate Beam Question

01/13/2017 3:45 PM

http://www.engr.uky.edu/~gebland/CE%20382/CE%20382%20PDF%20Lecture%20Slides/CE%20382%20L9%20-%20Intro%20to%20Indeterminate%20Analysis.pdf

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#9

Re: Statically Indeterminate Beam Question

01/16/2017 9:28 AM

tp://www.assakkaf.com/Courses/ENES220/Lectures/Lecture18.pdf

I believe this link will help in aiding in your calculation.

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#10

Re: Statically Indeterminate Beam Question

01/19/2017 4:19 PM

Well then, how much per hour, with a 4-hour minimum, are you offering to pay, any one of us, to tutor you?...

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#11

Re: Statically Indeterminate Beam Question

02/12/2017 2:19 PM

Have you considered the conditions: clamped ends thus angles on both sides are zero ?

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