摘要
用ANSYS中的接触单元分析进水塔基础接触面力学模型对塔体结构应力影响;经分析,基础接触面的力学模型对扬压力作用的影响非常明显,对地基反力、地震作用影响很小;接触面力学模型对塔体结构应力影响主要表现在底板部位;接触单元的接触面与目标面易发生相互嵌入而产生应力增加或降低的假象,因此,对接触单元的应用一定要慎重。
The contact element in ANSYS is applied to analyze the influence of mechanics model of intake tower foundation contact surface on the tower structural stress.The results show that the mechanics model of foundation contact surface has an obvious influence on the uplift,but less impact on the foundation counter force and seismic action.The influence of contact surface mechanics model on the tower structural stress mainly appears on the bottom floor.The contact element surface and the object surface are easily embedded with each other,which may induce the false state of stress increasing or decreasing,therefore,careful attention should be paid to the application of contact element.
出处
《西北水电》
2010年第6期63-66,共4页
Northwest Hydropower
关键词
进水塔
接触面力学模型
结构应力
ANSYS
接触单元
intake tower
mechanics model of contact surface
structural stress
ANSYS
contact element
