第一节门叶制作施工方案钢弧门的最大特点。外形尺寸大,重量重,结构复杂。制造这样的弧形门,对我局来说还是第一次,因此无论是制造技术或设备条件都有一定的困难。为了解决这个问题,我们发动群众进行反复分析、研究。大家认为门叶本身原设计巳分为上下两段,制作时可以把它看作是一个弧长4米的门叶和一个弧长9米的门叶来 The first section door leaf making construction program the most important feature of steel arc door. Large size, heavy weight, complex structure. Making such arc-shaped doors is the first time for our bureau, so there are some difficulties in terms of manufacturing technology or equipment. In order to solve this problem, we mobilize the masses to carry out repeated analysis and research. We think that the original design of the door leaf itself has been divided into two parts, making it as a 4-meter-long door leaf and a 9-meter-long door leaf