310
Structure: Special Considerations
In some instances, it will not be possible to align longitudinal shear
elements with perimeter girders and collectors may be necessary. These
collectors can take several forms, examples of which are shown in Figure
310-5. The design of collectors must take into account the location of
elements of the plumbing subsystem which occur in the same zone,
namely S2. (See Section 224.)
316.3
DOUBLE SHEAR ELEMENTS
Under certain circumstances, double shear elements may be required
where two service modules abut. If double columns are not introduced at
the same time, the face of the shear element will project beyond the
column centerline, reducing the width of one or two bedrooms per service
module.
Where double columns are introduced, other modifications to the standard
dimensions may result. For instance, when a change of direction in
framing is introduced at the same time as double columns, a non-modular
bay width may result.
These minor deviations from standard dimensions may result not only
from the introduction of double columns or shear elements but also from a
variety of other unpredictable circumstances which may arise when
service modules are assembled into various building forms. In most
cases, deviations of this type will not be serious. For instance, the non-
modular beam span falls within the acceptable range of forty to sixty feet
and does not interfere with the basic dimensional discipline of the
structure.
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