What is the length of the butt joint of H steel? What is the minimum requirement?
H type steel butt joint is not required for length, but oblique, generally 45 degrees, that is to say, not less than the length of at least H steel height.
If the H type steel welding, to avoid flange and web seam in the same section, upper and lower flange splicing and splicing of webs staggered position should be more than 200 mm, flange splicing length should not be less than 2 times the width of the plate (this confused with steel butt not), web splicing width of not less than 300 mm. The length of not less than 600 mm.
No, just on the basis of the docking process.