To accurately and efficiently carry out numerical calculations for blasting demolition projects, based on the basic principles of engineering mechanics, a simplified concrete model is established. This model represents the postpeak behavior of concrete in compression and the peak behavior in traction. Based on the mechanical properties of steel and concrete materials, a new reinforced concrete model is proposed. The proposed reinforced concrete model has been implemented in the computer program LS-DYNA and used to simulate a real blasting demolition. The result shows that this model can accurately reflect the collapse and movement process of the chimney.

中文翻译：

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钢筋混凝土简化模型的研究与应用

为了准确有效地进行爆破拆除工程的数值计算，基于工程力学的基本原理，建立了简化的混凝土模型。该模型表示混凝土在压缩时的峰后行为和牵引时的峰值行为。基于钢筋混凝土材料的力学性能，提出了一种新的钢筋混凝土模型。所提出的钢筋混凝土模型已在计算机程序LS-DYNA中实现，并用于模拟真实的爆破拆除。结果表明，该模型能够准确反映烟囱的倒塌和运动过程。