Recent content by Bill92

I summed the moments at point A making the UDL into an EPL to find By, then summed the forces in the y direction to find Ay. Pretty sure that part is right but I was unable to determine the x reactions at A and B as well as the moment reaction at point A.

Hi the following question is from a previous exam for the subject Design of concrete structures, just wondering if I can get any pointers as I was not able to find the reactions.

Thanks AlephZero, I did as you said, taking the center section between the two pins, and summing the momments abouty the left end and found Cy to equal 40kN (not 35 which is the correct answer, I've attached a paint drawing of the section, do I need to include a shear force at the right hand...

Okay, I see what you mean about the advantage of drawing all three sections. After doing this, I considered the 2' span at the end of the beam (including shear force) and as you predicted, found Dy to be zero, taking my obtained shear force as 10kN up, and using it as shear for the next...

Thanks guys, studiot, as much as I would like to use that method to "check" the computer generated reactions, unfortunately I have to obtain the same reactions using hand calculations, sorry I should have further clarified this. Afreiden, I tried cutting the beam into the sections as you...

Ah okay, thanks Simon. Studiot, we were given the question to solve on a computer program, and we have to check the reactions/bending moments using hand calcs. Thanks for your clarification between mohrs circle and his theorem's, damn geniuses coming up with 30 theorems each haha. I now...

hey mate, just letting you know that your values with regard to each material have not come up correctly, there are just squares next to the numbers.

Thanks simon, I checked out the link and read what it had to say, something along the lines of three moment theorem, beam deflection and mohr's circe, heaps of equations, it looks like a nightmare though! was this the method you were referring to, or is there an easier way?

structural question please HELP! Hi all, new to this physics forum business. I am wondering if anyone can tell me how to find reaction forces in a structure where there is more than two supports. I am familiar with the conventional method of taking the moment about a point to find one...