基于有限元的黄河北闸结构计算分析

鉴于黄河北闸工程已建成18 a,闸墩,工作桥等结构多处出现裂缝,故应对其结构安全状态进行分析研究,为维修加固该工程提供依据。采用水工结构有限元计算软件计算分析黄河北闸闸室结构内力,以复核闸室结构安全状态。由于有限元计算的结构内力分布趋势与一般方法计算的结构内力分布趋势相似,故表明使用有限元软件进行水闸结构内力分析计算简便,易于工程应用,具有较好的计算精度,能满足工程计算要求。

Analysis on Structure of North Sluice of Yellow River by Using FEM

The north sluice of Yellow River has worked for 18 years.The cracks appear in the sluice pier,service bridge and so on.So it is very urgent to give an appraisal of its structure safety in time and provide the basis for better servicing and strengthening of the structure.The finite element software AutoBank5.6 about hydraulic structures is adopted here to analyze the internal force of the sluice,and then to review its safety performance.The chart of the internal force by the finite element software is similar with the general trend,so it is indicated that by using the finite element software,the calculation for configuration of the sluice is straightforward and could be easily applied in practice with a good precision.