Section 27-553
§ 27-553 Construction materials and assembled elements of
construction. Except as provided in section 27-555 of this article, the
dead load shall be the actual weight of the building materials or
construction assemblies to be supported, computed from the unit weights
given in reference standard RS 9-1. Where unit weights are not
established in reference standard RS 9-1, the actual weights may be
determined by analysis or from data in manufacturers' drawings or
catalogs. Unit weights less than those given in reference standard RS
9-1 may be used only with approval of the commissioner.
Section 27-554
§ 27-554 Service equipment. Provision shall be made for the weights of
all building service equipment including plumbing stacks, piping,
heating and air conditioning equipment, electrical equipment, elevators,
elevator machinery, flues, and similar fixed equipment. The weights of
such equipment (or the allowances therefor) shall be included in the
dead load. The weight of equipment that is part of the occupancy of a
given area shall be considered as live load. See also paragraph two of
subdivision (b) and subdivision (d) of section 27-557 of article three
of this subchapter.
Section 27-555
§ 27-555 Partition loads. Weights of all partitions shall be
considered, using either actual weights at locations shown on the plans
or the equivalent uniform load given in subdivision (b) of this section.
(a) Actual loads. Where actual partition weights are used, the uniform
design live load may be omitted from the strip of floor area under each
partition.
(b) Equivalent uniform load. The equivalent uniform partition loads in
reference standard RS 9-1 may be used in lieu of actual partition
weights except for bearing partitions or partitions in toilet room areas
(other than in one- and two-family dwellings), at stairs and elevators,
and similar areas where partitions are concentrated. In such cases,
actual partition weights shall be used in design. Except as otherwise
exempted, equivalent uniform loads shall be used in areas where
partitions are not definitely located on the plans, or in areas where
partitions are subject to rearrangement or location.