简要介绍了直缝埋弧焊钢管生产线预弯工序的重要性、预弯的功能以及预弯工艺过程。
The purpose of prebending process of longitudinal submerged arc welding pipe production line is introduced; character of roller prebending and mould press type prebending is analyzed.
该文所介绍的是目前国内最大跨径预弯梁的施工概况，提出的一些关键工序应注意的问题。
This paper introduces the construction situation of biggest span prestressing bend beam, and brings up problems paying attention in key working procedure.
利用该方法已完成了十余座预弯组合梁桥的设计分析，取得了良好的计算结果。
More than ten preflex composite beam bridges were designed and analyzed with this method, and excellent results were obtained.
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