Steel box girder manufacturing and welding process

• Main Authors: ZHANG ZHIHUA, LIU PUQIAN, ZHU LIANCHEN, XIE BIN, LIU CHENGQI, WANG YOUQI, SONG YUYU
• Format: Patent
• Language: Chinese; English
• Published: 09.03.2021
• Subjects: ASSEMBLY OF BRIDGES; COMBINED OPERATIONS; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OR VIADUCTS; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention relates to a steel box girder manufacturing and welding process. The steel box girder manufacturing and welding process comprises the following steps that step 1, raw materials are pretreated; step 2, raw material blanking is carried out; step 3, steel box girder sections are manufactured; step 4, main beams are spliced; step 5, the main beams are welded; step 6, the main beams are corrected; and step 7, the steel box girder is assembled and welded on a construction site. The steel box girder manufacturing and welding process has the effects that welding deformation can be reduced, the part stress state is improved, and the box girder quality is guaranteed. 本发明涉及一种钢箱梁的制作焊接工艺，其包括：步骤一、原材预处理；步骤二、原材下料；步骤三、钢箱梁节段制造；步骤四、主梁拼接；步骤五、主梁焊接；步骤六、主梁矫正；步骤七、施工现场组焊钢箱梁。本发明具有能够减小焊接变形、改善构件应力状态，保证箱梁质量的效果。