摘要
针对我国港口多次门座起重机主臂架折断事故，从事故现象分析入手，确定其均为局部失稳而引起的整体破坏，进而讨论了板的二次屈曲、支承条件、劲板刚度、焊缝、弹性模量和初曲率等因素的影响，提出了一套管理办法，以防止局部失稳引起的破坏事故的发生。
In view of many accidents of portal crane main jib buckling in the harbour ,
the whole break caused by local loss-in-stability is determined from the phenomenon analsis .the
effects of quadratic buckling,bearing condition,stiffener rigidity,weld elastic modulum and initial
curvature are discussed.And finally a set of control methods are represented in order to prevent
the accident caused by the local loss-in-stability.
出处
《港口装卸》
北大核心
1999年第2期6-10,共5页
Port Operation
关键词
局部失稳
港口
起重机
门座式
主臂架
Metal Structure
Buckling
Local
Loss-in-Stability
Control
