本文介绍了研究马鞍支架在球墨铸铁管中引起的应力的调查结果。管道应变数据用于确定鞍座附近的应力分布。结果表明，最佳鞍座角度似乎在90-120度范围内。本文给出了鞍角在90-120°范围内的球墨铸铁管最大局部应力的近似计算公式。包括6个参考文献、图表。

This article presents results of investigations conducted to study stresses induced in ductile-iron pipe by saddle supports. Data on pipe strain were used to determine the distribution of stress in the vicinity of the saddle. Results indicate that the optimum saddle angle appears to be in the range of 90-120 degrees. A formula for approximating the maximum localized stress in ductile-iron pipes with saddle angles in the range 90-120 degrees is presented. Includes 6 references, figures.