拱坝最优拱轴线形状的选择及设计

Design and Optimum Selection on Arch Axis Shape of Arch Dam

针对通过采用抛物线拱轴线承受水压力、温度变化等荷载问题,提出了用曲线拟合的最小二乘法推求抛物线最优拱轴线的优化方法,再多次进行循环和比较.这种数值解析方法是目前数值分析方法在拱坝设计上的重要发展和补充,运用高斯数值积分法较容易地解决了非圆拱和变截面内力的求解问题.

Based on arch axis supported load such as water pressure and temperature change,Least-square method,an optimum method,is compared and used to exam optimal arch axis.Gauss numerical integration has been applied easily to solve those questions which are the noncircular arch axis and the internal force of changeable sections. This analysis method is an important development and complement of modern numerical analysis methods on the design of arch dam.