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Simply supported beam moving under symmetric load

Question asked by Ana Mahmoodi on Dec 23, 2019
Latest reply on Dec 27, 2019 by Ana Mahmoodi



I have an I-beam that is subject to two downward loads at both ends of equal magnitude (1893.75N). 


It is also being supported by two upwards loads (ie. a roller support).


When I simulate them, the beam looks to be moving to the left which does not make any sense, given the fact that both loads and supports are symmetric. I didn't expect it to be translating, can anyone provide some insight as to what is going on here?


The picture attached is what it looks like afterwards


Thank you