310
Structure: Special Considerations
Building separations parallel to the beams should occur close to the face
of columns. The girder on one side of the separation may be carried on a
cantilevered haunch or the girder may be cut at an acceptable location.
Double columns may be required in areas of high seismic loading.
When building separations occur, the structure on either side must be
designed as independent structural units, each braced by longitudinal and
transverse shear elements.
316.2
LOCATION OF SHEAR ELEMENTS
The location of shear resisting elements is dependent on the building
configuration and on the location of building separations. For instance,
shear elements must be located with reference to the location of large
openings in the diaphragm, such as two-story spaces, courtyards, etc.,
and so that all independent structural units are braced in both the
transverse and longitudinal directions. To be effective, shear elements
should be located so that the maximum ratio of the distance between them
to the width of the horizontal diaphragm is 3:1.
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