试验结果表明，钢管模型拱截面抗弯刚度小，受力过程弯曲变形较大。
It shows that the displacements of the model developed rapidly for its small rigidity.
建立了钢筋混凝土梁截面抗弯刚度全过程分析的力学模型，在理论分析的基础上编制了相应的数值计算程序。
The mechanics model of whole process of reinforced concrete beam section flexural rigidity is founded, based on the theoretical analysis the corresponding numerical calculation program is developed.
抗弯刚度的概念是材料切线模量和截面对中和轴的惯性矩的乘积。
The bending stiffness of elastoplastic member is product of tangent elastic modulus of material and inertia moment of the section.
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