Shock resisting steel structure welding process

Abstract

The invention discloses a shock resisting steel structure welding process. The shock resisting steel structure welding process comprises the requirements and steps of (1) material selection, (2) construction conditions and (3) welding parameters and steps; a multi-wire copper-free welding core is selected in the step of material selection; the construction conditions are preheating of a welding rod and the welding core before use; and the welding steps are as follows: the equal-temperature and equal-speed symmetrical welding is performed on two opposite surfaces of two steel columns during butt welding; the first two opposite surfaces are welded firstly when run-on tabs are added; then, the run-on tabs are cut; the surfaces of welding lines are cleaned; then, the second two opposite surfaces are welded; and after the welding is finished, two opposite surfaces are used for continuous welding until the whole welding lines are fully welded. The copper-free welding core is adopted to prevent the problems of copper slag fall and environmental pollution in the welding process of a traditional copper-plated welding core; the multi-wire welding rod is adopted, and the energy of welding electric arc is fully used, so that the welding lines are more reliable, and the problem of brittle rupture caused by air holes and cracks is effectively prevented; and the welding process achieves beneficial effects on the shock resisting aspect in steel structural buildings.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to an anti-seismic steel structure welding technology. Background technique [0002] Compared with traditional concrete buildings, steel structure buildings use steel plates or section steel instead of reinforced concrete, which has higher strength and better earthquake resistance, and because the components can be factory-made and easy to install, the construction period is greatly reduced. Reuse can greatly reduce construction waste and be more environmentally friendly, so it is widely used in countries all over the world and used in industrial buildings and civil buildings. The advantages of steel structures include light weight, high strength, good ductility, convenient installation, short construction period, and good seismic performance. The main advantages of using steel structure as the main structure of the building are: 1. Reduced construction time, not affected by seaso...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problem that some cracks, pores and other defects in the weld seam in the prior art steel structure welding process become the source of steel structure fracture during earthquakes, the present invention provides a seismic steel structure welding process, which improves the welding process and strictly welds Process requirements, reduce welding defects, and solve the stress concentration problem of steel structure welds