Abstract：
By weldability tests, analysis of domestic structural steel for bridge Q345qE at low temperature (-10℃) under the environment of weld crack sensitivity to determine suitable preheating before welding of steel box girder construction in winter temperatures.And by low temperature and low temperature welding procedure test this project construction technology of welding and applied engineering practice, in order to effectively guarantee the quality of low-temperature welding of steel box girder.
LI Guo-hua,JIN Jian,YA Ma-zhong et al. EXPERIMENTAL RESEARCH ON LOW TEMPERATURE WELDING PROPERTY OF Q 345qE STEEL PLANK[J]. Architecture Technology, 2012, 43(5): 390-393.
