Page 236 - Handbook of Structural Steel Connection Design and Details

Welded Joint Design and Production

Welded Joint Design and Production 221

Figure 3.19 Weld combinations with equal throat dimensions.
(Courtesy of The Lincoln Electric Company.)

0.5 in each. A final option would be a combination of partial joint pen-
etration groove welds and external fillet welds. As shown in Fig. 3.11,
a 60° included angle was utilized for the PJP groove weld and an
unequal leg fillet weld applied externally. This acts to shift the effec-
tive throat from the normal 45° angle location to a 30° throat.
If the plates being joined are 1.0 in thick, a CJP groove weld is the
only type of groove weld that will effectively transfer the stress, since
the throat on a CJP weld is equal to the plate thickness. PJP groove
welds would be incapable of developing adequate throat dimensions
for this application, although the use of a combination PJP fillet weld
would be a possibility.

3.6.4 Determining throat size
for compressive loads

When joints are only subject to compression, the unwelded portion of the
joint may be milled-to-bear, reducing the required weld throat. Typical
of these types of connections are column splices where partial joint

Downloaded from Digital Engineering Library @ McGraw-Hill (www.accessengineeringlibrary.com)
Copyright © 2009 The McGraw-Hill Companies. All rights reserved.
Any use is subject to the Terms of Use as given at the website.