摘要
直接将GB 50018-2002《冷弯薄壁型钢结构技术规范》中关于轴心受压构件的稳定系数φ用于脚手架钢管的计算值得商榷。在保持GB50018-2002规范的综合缺陷数学模式不变的前提下,考虑48×3.5钢管的截面特性和实际的几何缺陷,提出φ系数的修订意见,并给出标准的φ系数表格。
In most of technical codes on scaffold,the reduction factors about tubulars are determined from the table in Code GB 50018-2002 without carefully considering the tubular section characteristic and the value of initial local bow imperfection.In this paper,keeping mathematical model of GB 50018-2002 and considering the factors above,several revision and suggestion have been made.
出处
《钢结构》
2012年第1期41-42,46,共3页
Steel Construction
关键词
稳定系数
综合缺陷
初偏心
初弯曲
reduction factors
total imperfection
initial eccentricity
initial local bow imperfection
