The value of UZ at node 5 is 3.016781081E+09.It is greater than the current limit of 1000000.This generally indicates rigid body motion as a result of an unconstrained model.Verify that your model is properly constrained.

The value of UZ at node 5 is 3.016781081E+09.It is greater than the current limit of 1000000.This generally indicates rigid body motion as a result of an unconstrained model.Verify that your model is properly constrained.
The value of UZ at node 5 is 3.016781081E+09.It is greater than the
current limit of 1000000.This generally indicates rigid body motion
as a result of an unconstrained model.Verify that your model is
properly constrained.

The value of UZ at node 5 is 3.016781081E+09.It is greater than the current limit of 1000000.This generally indicates rigid body motion as a result of an unconstrained model.Verify that your model is properly constrained.
模型欠约束,以致于Z向存在宏观位移.
解决办法：添加适当的Z向约束.