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Unified Failure Model of Reinforced Concrete Members Subjected to Hazard Loads Ⅰ: Ductile Failure Analysis

机译：承受危险荷载的钢筋混凝土构件统一破坏模型Ⅰ：延性破坏分析

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摘要

A simple and unified failure model is proposed for rectangular reinforced concrete (RC) members subjected to axial loads, bending, shear force and torsion. As observed in experiments, there are two distinct types of failure mechanisms, ductile failure and brittle failure. They are analyzed separately and different analyses are proposed respectively only using failure criteria and equilibrium conditions. In the present paper, a lower-bound limit analysis of ductile failure is proposed. At first, the warped 3-dimensional failure surface is demonstrated, then stress distributions on the failure surface can be described, and finally equilibrium conditions would lead to the interaction relationship among external loads.
机译：针对矩形钢筋混凝土构件的轴向载荷，弯曲，剪力和扭转，提出了一种简单统一的破坏模型。如在实验中观察到的，有两种不同类型的失效机制，延性失效和脆性失效。分别对它们进行分析，仅使用失效准则和平衡条件分别提出不同的分析。本文提出了韧性破坏的下限分析。首先，演示了翘曲的三维破坏面，然后可以描述破坏面上的应力分布，最后，平衡条件将导致外部载荷之间的相互作用关系。

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