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提出了一种基于构件截面分层研究的钢混凝土组合梁柱单元，由于它较准确地考虑了混凝土开裂软化以及钢的应变硬化等材料非线性的影响，同时也考虑了构件各截面的中和轴变化且单元在变形过程中保持了轴向力的平衡，避免了常用梁柱单元受等轴向应变假定的限制，因而放宽了单元划分的要求．该方法简单有效，易于在计算机上实现，适合于对具有组合构件的结构作整体的极限状态分析．
A steel-concrete composite beam-column element based on component cross-section delamination study is proposed, because it accurately considers the effects of material non-linearity such as cracking softening of concrete and strain hardening of steel, and also considers the mid-section of each section of the component. The axis changes and the unit maintains the equilibrium of the axial force during the deformation process, which avoids the restriction of the commonly used beam-column unit under the assumption of equal axial strain, thus relaxing the requirements for unit division. This method is simple and effective, easy to implement on the computer, suitable for the overall limit state analysis of the structure with composite components.