某炼钢厂房钢吊车梁疲劳性能测试及分析  

FATIGUE PERFORMANCE TESTING AND ANALYSIS OF CRANE GIRDERS FOR A STEEL MAKING PLANT

作　　者：常好诵[1,2] 姜忻良[1] 李小瑞[3] 黄新豪[3] 杨建平[2] 葛安祥[1] 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]中冶集团建筑研究总院,北京100088 [3]武汉钢铁股份有限公司,武汉430080

出　　处：《工业建筑》2011年第9期127-130,共4页Industrial Construction

摘　　要：以某炼钢厂房吊车梁疲劳性能应力测试结果为例,结合有限元模拟,对钢吊车梁的疲劳性能进行分析。结果表明:钢吊车梁腹板截面突变处应力集中现象明显,构件疲劳性能严重;随着生产技术的进步,冶金工厂吊车运行频繁程度的大幅度提升,GB 50017—2003《钢结构设计规范》对欠载效应等效系数的取值较实际情况偏低,建议将炼钢厂房重级工作制软钩吊车的欠载效应系数调整到0.9,以保证吊车梁的疲劳寿命。It was carried out an analysis of fatigue performance of crane girder using FE simulation according to the result of fatigue performance stress testing of crane girder for a steel plant. The result indicate that stress concentration is obvious on the mutation section of the crane girder and fatigue performance is serious. With the advances in production technology, the cranes are increasing the frequency of operation which will make the under-load effect coefficient increase significantly. The value in the existing Code of Design of Steel Structures （GB 50017--2003） may be is lower than that of the actual situation,leading to insecurity. Therefore,it was recommended that 0. 9 should be taken as the value of under-load effect coefficient for the heavy duty work system of crane hook in order to ensure the fatigue security of crane girders.

关 键 词：钢吊车梁 欠载效应系数 应力测试 有限元 疲劳 

分 类 号：TU391[建筑科学—结构工程]