摘要
仿真模拟分析是一种研究爆炸、撞击等这类高度非线性动力学问题的重要方法,而建立准确、合理的模型又是进行数值模拟计算的前提和关键。通过比较选择较为合理的单元类型及材料本构关系,利用ANSYS软件建立了钢筋混凝土框架梁、柱的分离式模型,并通过工程实例模拟分析了钢筋混凝土框架柱在爆炸冲击荷载作用下动力响应,结果表明通过适当的技术设置可以很好地模拟钢筋混凝土结构在爆炸荷载作用下的位移、弯矩、剪力等动力响应及裂缝开裂情况。
Simulation analysis is an important method for investigation upon the action of structures subject such as explosion and collision, which is a kind of high level nonlinear problem in structure dynamics. The formulation of accurate and reasonable analytical model is the foremost precondition for numerical simulation. In this paper, the parted model for concrete and rebar in beam and column of concrete structures is established by using the software ANSYS, through comparing and choosing reasonable element types and material constitutional relations. The paper analyzes the dynamic response of reinforced concrete under explosion load through practical engineering example. It shows that the displacement, internal forces and the crack development process of frame members could be well simulated.
出处
《河北理工大学学报（自然科学版）》
CAS
2009年第4期115-119,共5页
Journal of Hebei Polytechnic University:Social Science Edition
基金
国家自然科学基金项目(50778061)
