(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

http://tinypic.com/r/2wbxm2s/7

This is a series of beams pinned together at A, B, C

Find reactions at a b c

2. Relevant equations

Sum of moments at B has to = 0, sum of Fx = 0, sum of Fy = 0

3. The attempt at a solution

Sum of moments about A, anti clockwise +ve

2(-16) + 8Cy -4Cx = 0

considering section BC

sum of momeents about B

4*-25 + 4Cy -8Cx= 0

solving ffor Cx = 61.33

I've been staring at this question all day, it has literally stopped making any sense.

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# Homework Help: Three pinned arch/ beams

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