奔牛枢纽上闸首结构有限元分析

Analysis of finiter element on Benniu lock head structure

针对奔牛枢纽船闸上闸首结构及受力复杂问题,采用三维有限元ABAQUS软件,分析研究闸首结构在不同的工况下的位移场及应力场。计算结果表明,奔牛枢纽船闸上闸首各部件的水平位移和垂直位移均满足规范要求,各工况下的结构底板拉应力超过混凝土允许拉应力。三维有限元分析结果能较直观、准确反映建筑物整体强度与位移状况,可以为评价结构安全性态提供依据。

Aimed at the complex problemes of Benniu lock head structure, the three-dimensional FEA software- ABAQUS is adopted to analyze the displacement field and stress field of lock head structure under different working conditions in this paper. The calculation result shows that the horizontal and vertical displacement all meets the specification requirement. Under different working conditions, the tensile stress of the structure floor is more than that of the concrete. The results of three-dimensional FMA can accurately and intuitively reflect the state of overall strength and displacement, which provide basis for evaluating the security state of structure.