钢框架稳定设计方法的探讨及其在导管架平台组块设计中的应用  

Discussion on Stability Design Method of Steel Frame and Its Application in Jacket Platform Blocks

作　　者：尹晓明[1] 李娟[1] 董滨[1] 毛建斌 叶永坤[1] YIN Xiaoming;LI Juan;DONG Bin;MAO Jianbin;YE Yongkun(Offshore Oil Engineering Co.,Ltd.,Tianjin 300451,China)

机构地区：[1]海洋石油工程股份有限公司,天津300451

出　　处：《天津科技》2020年第10期40-42,共3页Tianjin Science & Technology

摘　　要：目前,钢结构的稳定设计主要通过计算长度系数来确定构件的长度从而进行设计。根据结构的形式和受力情况确定结构应按有侧移计算或按无侧移计算,而不同的失稳类型对应于不同的计算模型,因此正确理解失稳类型是应用有效计算长度法的前提。为此介绍了稳定设计的两种方法、刚架失稳类型及不同类型对应的计算长度系数的方法,并对中美规范中计算长度系数的方法进行对比。此外,对计算长度系数在导管架平台组块设计中的应用给出了建议,可供钢结构设计人员参考。At present,the stability design of steel structure is mainly based on the calculation of the length coefficient to determine the length of the components.According to the structural form and loading condition,the structure should be calculated with or without the lateral displacement.Because various type of instability corresponds to the various calculation models,understanding the type of instability properly is the premise of applying the effective length method.This paper mainly introduces the two methods of stability design,the types of instability,various calculation methods of effective length corresponding to the various types of instability and the comparison of calculation methods of effective length factor in Chinese and American codes.In addition,some suggestions are given for the application of the effective length coefficient in the design of jacket platform blocks,which can be used as a reference for steel structure designers.

关 键 词：计算长度系数 稳定设计 导管架平台 

分 类 号：TU39[建筑科学—结构工程]