摘要
根据广义坐标法原理,以拉伸弹簧和滑移弹簧来模拟混凝土翼板和工字钢梁之间交界面的脱离和滑移效应,通过给定其广义坐标,推出了组合梁约束扭转分析的微分方程组。编制了有关主程序,借助于常微分方程(ODEs)求解器COLSYS 可方便地进行求解。最后给出了计算实例, 予以说明。
With prescribed generalized coordinate, the differential equation system for restrained torsion analysis of composite beams is established based on the principle of generalized coordinate method. An extension spring and a slipping spring are introduced to simulate the effect of detachment and slippage on the interface between concrete slab and I-shaped steel beam. The solver of ordinary differential equations (ODEs)-COLSYS is employed to solve the system equations. A practical example is studied to demonstrate the method.
出处
《工程力学》
EI
CSCD
北大核心
2005年第2期1-5,26,共6页
Engineering Mechanics
基金
国家杰出青年科学基金(50025822)
国家自然科学基金(59778038)
北京市科委(95330082)资助项目
