钢筋混凝土建模报错

shuty0312

错误中是：
in keyword *EMBEDDEDELEMENT, file "practice-1.inp", line 10419: Unknown assembly set STEEL

There are no embedded elements specified under the *embedded element card.
警告中是：
Elset assembly_steel has been defined as a embedded element set. This element set is not active in the current model

Strain output request le is not valid for some elements in this analysis. This request is switched to the strain measure, e.

这个钢筋自己就是按照beam或者truss和混凝土结合的。试了几次都是这个问题，新手初次接触，有没有高手指点一下。貌似就是钢筋集装配的问题