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本文检验了叉形管现有的应力和疲劳破坏数据,并使它们与相当广阔的90°连接支管的现行设计指导资料相关联;文中还提出了应力指数和i系数的推荐值,它们可使用于管路系统设计和鉴定的规范中。对这些设计系数还进行了汇总,使它们可直接插入到规范中。
This paper examines the existing stress and fatigue failure data for the forked pipes and correlates them with current design guidance for a fairly wide 90 ° connecting pipe. The recommended values for the stress index and the i-factor are also presented, which can be used In the piping system design and identification of the norms. These design factors are also summarized so that they can be inserted directly into the specification.