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本文在建立拱内力与拱轴变化函数关系及拱轴调整曲线的基础上,介绍一种较为简便、实用且有效的调整方法。总的思路是先取不计弹性压缩的恒载压力线或“五点重合法”拟合的曲线为初始拱轴线,在初始拱轴线上,根据建立的计算公式,叠加调整曲线,使截面合力偏心或弯矩分布比较均匀。
In this paper, based on the relationship between arch internal force and the function of arch axis and the adjustment curve of arch axis, a simple, practical and effective adjustment method is introduced. The general idea is to take the curve of constant pressure line without elastic compression or the fitting curve of “five-point coincidence method” as the initial arch axis. On the initial arch axis, according to the established formula, the adjustment curve is superimposed to make the sectional force eccentric or Bending moment distribution is more uniform.