# 3.1.2: 分解模型 (Disassemble Model)

出于以下两种原因，有时需对现有模型进行拆分：

1. 重新组成不同的配置
2. 检索结果，如：断面优化等

**“DisassembleModel（分解模型）”**运算器可用于将结构模型分解为模型组件（如图3.3）。无论初始时是依据坐标还是使用节点索引来进行定义的，产生的荷载、支撑件，以及元素均按照位置显示其连接的节点。这样，用户可以重新使用旧模型的各个部分，将其在节点索引已更改的新模型中进行重新构建。在**“CroSec（断面）”**和**“Material（材料）”**输出端，仅显示那些直接接入**“Assemble（模型构建）”**运算器的断面和材料。为了获得所有断面，有必要分解模型元素。断面材料可由分解断面获取。

![ 图3.1.2.1：模型被分解为组件](https://2244769574-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M9XteyGDAU3Odla53cC%2Fsync%2F6c5c8dd18667d8f9d94f4a1bc315f3b14ee5736e.png?generation=1591871159891500\&alt=media)


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