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基于Open Sees开源软件平台,采用Tcl语言编制了H形、圆形、矩形钢管柱和钢-混凝土组合梁纤维截面函数,可完成该类截面纤维的离散,结合基于纤维截面的非线性梁柱单元,集成了用于分析钢-混凝土组合梁钢框架的纤维模型,通过模块化编程处理,可以方便地用于完全剪力连接的钢-混凝土组合梁构件及结构在竖向荷载及水平往复荷载作用下的整体弹塑性分析。与国内、外大量试验的对比结果表明,基于Open Sees开发的纤维模型具有较高的精度,模块化的编程处理大大减少了建模工作,提高计算效率。
Based on the Open Sees open source software platform, the fiber cross-section functions of H-shaped, circular, rectangular steel pipe columns and steel-concrete composite beams were prepared by using Tcl language, and the dispersion of the fibers was completed. Combined with the nonlinear beam- , Integrated with a fiber model for analyzing steel frame of steel-concrete composite beams, is modularly programmed to be used for the full shear connection of steel-concrete composite beam components and structures under vertical and horizontal reciprocating loads Under the overall elastic-plastic analysis. Compared with many experiments both at home and abroad, the results show that the fiber model based on Open Sees has higher accuracy, modular programming can greatly reduce the modeling work and improve the computational efficiency.