切断平面
Secant stiffness matrix and tangent stiffness matrix of reinforced concrete arbitrary cross-section members with eccentric compression load are derived, on the base of plane assumption and the cross-section equilibrium equations.
以平截面假设为基础,利用截面内力平衡关系,推导出钢筋混凝土双向偏压构件截面割线刚度、切线刚度矩阵计算的简便公式。
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