Page 39 - Handbook of Structural Steel Connection Design and Details

Fasteners and Welds for Structural Connections

24 Chapter One

Note that the “M” in the backing bar symbol indicates that the mater-
ial to be used for backing is specified.
1
A ⁄8-in root opening for a bevel weld, not to be ground, is indicated by

In this and other types of unsymmetrical welds, the arrow not only des-
ignates the arrow side of the joint but also points to the side to be shaped
for the groove weld. When the arrow has this significance, the intention
often is emphasized by an extra break in the arrow.
The angle at which the material is to be beveled should be indicated
with the root opening:

A double-bevel weld is specified by

A single-V weld is represented by

A double-V weld is indicated by

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