03G101-1 stipulates that overlapping is not allowed within 1/3 of the clear span of beams, so it is called a non-connection area, but overlapping is allowed at 1/3 of the span. If it is a non-connected area, If long ribs are to be welded, a welding qualification inspection report is required. And try to avoid welding in non-connection areas.
Frame beam: Frame beam refers to a beam connected to frame columns at both ends, or a beam connected to shear walls at both ends but with a span-to-height ratio of not less than 5. Now there is another view on frame beams in structural design, that is, beams that need to participate in earthquake resistance. Pure frame structures are becoming increasingly rare with the rise of high-rise buildings, while frame beams in shear wall structures are mainly involved in earthquake resistance. of beams.