摘要
根据吊车梁应力测试结果,采用雨流法对实测数据进行应力幅统计,得到各测点等效应力幅。根据有限元计算分析及实测应力幅,推断吊车梁新增吊车前的应力状态,进而对吊车梁疲劳损伤进行评估。
According to the stress test results of the crane beam,the rain-flow method is applied to carry out stress amplitude statistics based on the measured data,and obtains the equivalent stress amplitude of the measuring points is got.The finite element analysis and the measured stress amplitude are used to infer the crane beam stress state for the previous working state before upgrade.Furthermore,the assessment of the fatigue damage of the crane beam is made.
出处
《工业建筑》
CSCD
北大核心
2010年第S1期935-938,共4页
Industrial Construction
关键词
吊车梁
疲劳寿命
应力测试
crane girder
fatigue life
stress test
