Civil Engineering Reference
In-Depth Information
F i g u r e 10.14 Vertical collector forces.
The resulting wall shear, hold-down forces, and collector forces of Examples 10.1
and 10.2 should be compared to understand the significance of including gravity loads.
It would also be of value for the reader to analyze the wall with the lateral force in the
opposite direction plus the addition of gravity loads.
For a complete design of these walls there are members, connections, and stresses
that need to be checked in addition to the nailing requirements of the sheathing, the
sizing of the tie straps, and the hold-downs at the ends of the wall. Testing has shown
that failure typically occurred at the corner joints of the opening due to buckling, the
transfer of shears and tension forces across the sheathing joints, and bearing perpen-
dicular to the grain.
Transfer of the Vertical Shear
Figure 10.15 shows the forces acting at a typical corner joint and two possible fram-
ing conditions. The joint in the sheathing, in this case, is located at the inside face of
the jamb stud, which is a common occurrence. The vertical shear from the header
panel can be transferred across the joint through the light gauge hanger or shear clip
 
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