Simply supported beams bending moment

AI Thread Summary
The discussion revolves around calculating the bending moment at point A of a simply supported beam under a uniformly distributed load and a point load. Participants emphasize the importance of first determining the reaction forces using equilibrium equations. There is a call for the original poster to show their work to facilitate assistance, highlighting the expectation of effort in homework-related queries. Frustration arises from perceived judgment regarding the poster's lack of initial attempts, leading to a suggestion to seek help elsewhere. Ultimately, the conversation underscores the balance between seeking help and demonstrating effort in problem-solving.
stevemilw
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I don't know how to do the following question,
The beam shown is under the action of a uniformily distributed load w of 2 kN/m between the supports and a point load of 2 kN at the end point. Determine the bending moment in kNm at point A situated 3 m to the right of the left support. Round off your answer to one decimal place and use the standard sign convenction for the bending moment.
http://img52.imageshack.us/img52/6176/beamtest3.png

I have this question as revision and i can't find an example like this to work from anywhere on google.
I have found looked on youtube, but with no real success.
Any help would be great.
Thanks
 
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I know you have to find the equilbrium of the x and y directions.
 
Solve for the reaction forces first, using the equilibrium equations for sum of forces = 0 and sum of torques (moments) about any point = 0. Please show your attempt before we can provide further assistance. And welcome to PF!.
 
guys what is the answer to this question?
 
Sorry but no one here or myself has the intellect to work this out. I am sorry to disappoint you.
 
No, this is not a hard problem at all. But for a homework problem, we need to see some effort as Jay suggested. Where is your work, the calculation of the reactions? Show that you are putting something into this, please.
 
i posted this question over a year ago, so why do you think I am still looking for an answer?
For the record, from what i can remember, this was revision help.
No point getting all angry because people haven't 'made a reasonable attempt'.
I will just take my questions onto yahoo answers where people are just pleased to help rather than trying to judge you for apparently not making an effort before asking people. If I've come onto a forum to ask for help, it probably means I am a my whits end and I've come here because it was my last option.
But anyway, i think i just scraped a pass in this exam.
 
thanks for the concern buddha
 
Check any solutions about Beam Bending by online free tool
http://helper.orlovsoft.com/Timik.aspx
If you wish to understand the task and solution you may also to take it by Mechanics of Materials Toolbox for Maple (by trial). Find it within http://www.orlovsoft.com/toolbox.html
 

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