OBJECTIVESCOPE *To introduce composite columns,.组合柱概念、分 类、构造 *To describe their behavior,组合柱的特性 To explain the design method for axially loaded composite columns..组合柱承载力计算、设计OBJECTIVE/SCOPE  To introduce composite columns; 组合柱概念、分 类、构造  To describe their behavior; 组合柱的特性  To explain the design method for axially loaded composite columns. 组合柱承载力计算、设计