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本文基于文[5]所建立的曲梁单元,根据非线性的应变-位移关系,推导出平面曲梁单元的切线刚度矩阵,并编制了平面曲梁几何非线性分析程序。计算结果表明本文建立的平面曲梁单元计算精度明显高于以直梁模拟曲梁的结果。
Based on the nonlinear strain-displacement relationship, the tangent stiffness matrix of planar curved beam elements is deduced based on the curved beam element established in [5], and the geometric nonlinear analysis program of planar curved beam is developed. The calculation results show that the calculation accuracy of the planar curved beam element established in this paper is obviously higher than that of the curved beam with straight beam.