Yes, joint pain can certainly be a part of IBD for many people. For some, it is linked heavily with IBD flares and will come and go with gastro symptoms. For others, it flares up on its own with no apparent correlation to IBD flares.
People with IBD also have a slightly higher risk of developing rheumatoid arthritis as having one immune/inflammatory disease increases the risk of having another .
There are of course other types of arthritis and joint disorders that you could be suffering from.
Have you had your vitamin and mineral levels checked lately? You could have vitamin D deficiency, vitamin B12 deficiency, anaemia, a calcium deficiency or even too much calcium, as well as a few other mineral deficiencies that can affect the joints.