摘要
利用ANSYS/LS-DYNA软件,对混凝土结构底面是否固定钢板进行了模拟。通过对两种情况下的结果分析,揭示了混凝土不同位置处单元σy值的时程规律,得到了在计算时间内钢板的存在能够有效地减小相邻混凝土单元的最大拉应力,并延长其出现时间;同时得到了在类似研究的工程结构中,边界效应对混凝土层裂现象无影响。对相关工程的设计、施工具有参考价值。
The concrete structure with or without steel panel is simulated by the software ANSYS/LS-DYNA.Based on the analysis of the results of these two cases,the rule of element＇sσyat different position is presented,and it shows that the steel panel can effectively reduce the maximal σy of the element adjacent to the steel panel,and can postpone the arriving time within the simulation time.At the same time,the simulation reveals that the boundary effects don＇t affect the spalling in the similar structure presented in this paper.Simulative results will provide reference for the design and construction of related projects.
出处
《地下空间与工程学报》
CSCD
2007年第6期1022-1026,共5页
Chinese Journal of Underground Space and Engineering
关键词
数值模拟
应力波作用
层裂现象
边界效应
numerical simulation
effects of stress wave
spalling
boundary effect
