Hi, I’ve tried running construction stages for my bridge model and ran into this error. How can I fix it?
Your system is mechanically unstable at this stage
Either a necessary group is turned off (e.g. support springs) or the activated parts are unstable without the bracing of the remainder (e.g. longitudinal fixed bearing is in a later stage).
Check the produced “error load cases” (1001, 1002,…) in the animator and find out what’s wrong.
Either you need to activate springs in the csm or you have to add temporary supports for the construction stage (e.g. lateral springs/supports)