电焊机2011，Vol.41Issue(8)：62-65,4.
钢结构焊接过程应变监测
Monitoring of strains on steel structure during welding process
覃鑫 1徐越兰 1胡晓勇1
作者信息
- 1. 南京理工大学材料科学与工程学院,江苏南京210094
- 折叠
摘要
Abstract
This paper researches on monitoring of strains on weld and bolts steel structure during welding process .The start with,the numerical simulation of welding stresses have been carried out.Moreover,according to results of the numerical simulation,the onitoring of strains on steel structure during welding process system was established. The test proceeds as follow: design of measuring slot .sticking of Strain gauge, distribution of equipment wires, establishment of experimental platform, monitoring of testing process, post-treatment of experimental data. Results of test show that: during welding process of this structure, the top of stresses had created when eighth-pass of the upper weld were done;As accomplishment of upper weld,first line of upper flange length on bolts have created the top stress,the value of 45° main stress up to 187 Mfa,when the lower weld was done,the value of stress reduced to 163 Mpa, results of test are basically consistent with the numerical simulation.关键词
焊接过程/应变监测/数值仿真Key words
welding process/monitoring of strains/numerical simulation分类
建筑与水利引用本文复制引用
覃鑫,徐越兰,胡晓勇..钢结构焊接过程应变监测[J].电焊机,2011,41(8):62-65,4.
