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Numerical Analysis on Failure Modes of Steel Frame under Fire Combined Blast Loads

机译:火灾结合爆破负荷下钢框架故障模式的数值分析

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An H-shaped steel frame in fire combined blast loading was numerically developed in this paper using finite element method by ANSYS thermal analysis. At the first step, a temperature field has been numerically analyzed. At the second step, each element of the steel frame was assigned different modulus of elasticity and yield stress based on the temperature analysis results. A dynamic simulation of the steel frame subjected to a blast load was analyzed under such a temperature field. The failure modes of the frame structure has been discussed. Finally, a same shape frame at the room temperature under the same blast load was simulated to compare with that at the elevated temperature.
机译:在本文中使用有限元法分析,在本文中开发了在灭火爆破载荷中的H形钢框架。 在第一步中,在数值分析了温度场。 在第二步,基于温度分析结果,将钢框架的每个元件分配不同的弹性模量并屈服应力。 在这种温度场下分析经受鼓胀载荷的钢框架的动态模拟。 已经讨论了框架结构的故障模式。 最后,模拟在相同的鼓胀下的室温下的相同形状框架以与高温进行比较。

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