Page 37 - Handbook of Structural Steel Connection Design and Details

Fasteners and Welds for Structural Connections

22 Chapter One

length unless a continuous full-length weld is wanted. “Continuous”
should be written on the weld symbol to indicate length when such a
weld is required. In general, a tail note is advisable to specify welds on
the far side, even when the welds are the same size.

For many members, a stitch or intermittent weld is sufficient. It may
be shown as

1
This symbol calls for ⁄4-in fillet welds on the arrow side. Each weld is to
be 2 in long. Spacing of welds is to be 10 in center-to-center. If the welds
are to be staggered on the arrow and other sides, they can be shown as

Usually, intermittent welds are started and finished with a weld at
least twice as long as the length of the stitch welds. This information is
given in a tail note:

In the previous three figures, intermittent fillets are shown as, for exam-
ple 2-10. This is the notation recommended by AWS, but it can lead to con-
fusion on shop drawings, where dimensions are given in feet and inches as
for instance, 2 ft-10, with no inch symbol. Therefore, 2-10 on a weld symbol
could be mistaken as 2 ft, 10 in rather than 2 in at 10 in. It would be less
ambiguous to use the “at” symbol, @, rather than the hyphen, -. Then the
weld symbol would read 2 @ 10, which is unambiguous.

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