基于整体式模型的钢筋混凝土结构爆破拆除定向倒塌数值模拟

Numerical Simulation of Reinforced Concrete Structure Directional Collapse by Blasting Demolition Based on Integral Model

利用ANSYS/LS-DYNA有限元软件,采用MAT96和整体式模型对钢筋混凝土结构定向爆破拆除进行数值仿真研究.基于计算结果分析了钢筋混凝土机构在倒塌过程中的前冲、后坐、鼓胀,并对整个倒塌过程做出了定量描述.通过与黑白水酒店大楼爆破拆除工程的对比表明,模拟结果较好地符合了实际测量情况.

By using the ANSYS/LS-DYNA finite elements software, the numerical simulation research is conducted to the reinforced concrete structure directional collapse using integral model. Based on the calculation results, this article analyzes the reinforced concrete structure collapsed in the process of forward, back, bloating, and makes a quantitative description to the entire collapse process. Compared to the Heibaishui hotel collapse process by blasting project, it shows that integral model simulation results can agree well with the actual and also has guiding significance to the actual project.