Ceiling beam crack/split. Should I be worried?
IF those were wooden beams (which seems doubtful) the cracks are of no concern. They are in the top part of the beam, thus in compression, not tension. Two of them are more in the joint between ceiling and &quot;beam&quot; than &quot;beam&quot; for that matter.
If they are actually drywall over something (as suggested in a comment, pretty reasonably from the look of them) they are not structural and of no concern.