摘要
泡沫混凝土材料具有减振和吸收冲击能量的特点。应用ANSYS/LS-DYNA有限元程序对地下复合结构在爆炸荷载作用下的动力响应进行了数值模拟,分析了泡沫混凝土减振层对结构动力响应特性的影响。计算结果表明,泡沫混凝土减振层能够明显减小结构的动力响应;泡沫混凝土减振层的最佳厚度为毛洞半径的0.25倍左右。
Foam concrete can reduce vibration and absorb impact energy.Dynamic responses of underground compound structure under blasting loads were numerically simulated by applying ANSYS/LS-DYNA,affection of vibration reducing layer of the foam concrete on the dynamic response property of structure were analyzed.The final result shows that the dynamic response of structure can be reduced by vibration reducing layer of the foam concrete.The best thickness of vibration reducing layer of the foam concrete is about 25 percent of radius of surrounding rock.
出处
《四川建筑科学研究》
北大核心
2010年第6期135-138,共4页
Sichuan Building Science
