摘要
论述应保留上拱度的原因和必要性,通过对预拱度影响因素的讨论,建议当跨度大于20m时取S/1000作为上拱度值的上限,取消下限要求,具体要求由用户和制造厂共同商定。
The paper discusses the cause and necessity for reserve the camber,and through the discussion on the affecting factor for the precamber,the paper suggests that when the span is larger than 20 m,S/1 000 shall be taken as the upper limit of the camber value,and the lower limit shall be cancelled,and the specific requirements shall be decided by the user and manufacturer.
出处
《起重运输机械》
2010年第11期9-12,共4页
Hoisting and Conveying Machinery
作者简介
作者地址：辽宁市大连市大连理工大学北山5舍320室 邮编：116023
