Because each part of H steel beam is arranged at right angles, h-beam has the advantages of strong bending resistance, simple construction, cost saving and light structure weight in all directions, and has been widely used.
H steel beam stiffness, weld preparation, so that the whole section of the whole to achieve harmony rather than a single highlight a certain function.
For some large H steel beam, can be segmented, layered, intermittent welding methods, and then implement these methods, to control the frequency and speed of the high-frequency current, should make it always in the same state.
Attach importance to the welding sequence of H steel beam, welding the main weld in the welding secondary weld or welding the shrinkage of the first and so on, develop a reasonable welding sequence so that the whole process can be orderly.
If there is asymmetry in large H steel beam, the sections composed of it should be corrected first and then assembled and welded to ensure the overall stability. Welding is often reactive and effectively cancels out the deformation.
