Section 27-580
§ 27-580 Scope. The provisions of this subchapter, supplemented by the
additional requirements of subchapter eleven of this chapter, shall
establish minimum requirements for materials, designs, and construction
to be used for all structural elements in buildings. In addition, within
special flood hazard areas and below the regulatory flood datum, as
described in article ten of subchapter four of this chapter, materials,
designs and construction required for structural elements by reference
standard RS 4-5 shall be applicable.
Section 27-581
§ 27-581 Standards. The provisions of reference standard RS-10 shall
be a part of this subchapter.
Section 27-582
§ 27-582 Definitions. For definitions to be used in the interpretation
of this subchapter, see subchapter two of this chapter.
Section 27-583
§ 27-583 Plans. For the requirements governing the filing of plans and
the work to be shown on the plans, see subchapter one of this chapter.
Section 27-584
§ 27-584 Permits. For the requirements governing equipment work
permits and equipment use permits, see subchapter one of this chapter.
Section 27-585
§ 27-585 General requirements. For purposes of this code, the
structural elements of a building shall normally include all floor,
roof, and wall framing members and slabs (but not including
slabs-on-grade); all piers, walls, footings, piles, and similar elements
of the foundation; and all other elements of both foundation and
superstructure which, in engineering practice, are proportioned on the
basis of calculated stress. Where doubt exists as to the structural
nature of an element, the provisions of this subchapter, and of
subchapter eleven of this chapter, shall be deemed to apply only to an
element in which the materials are stressed in excess of thirty-three
and one-third per cent of the allowable stress values (without increase
for infrequent stress conditions) for such material in its proposed use,
or to an element wherein public safety would be involved in the event of
excessive distortion under the applied loads.
Section 27-586
§ 27-586 Materials and methods of construction. Materials and methods
of construction used in the manufacture and/or placement of structural
elements in a building shall be subject to the requirements of article
seven of subchapter one of this chapter, the inspection provisions
established in tables 10-1 and 10-2 and the detailed requirements of
articles four through twelve of this subchapter and article thirteen of
subchapter eleven of this chapter.
Section 27-587
§ 27-587 Fire protection requirements to apply. Where a material or
method of construction in a specific use is required to provide fire
protection as well as structural adequacy, the material or method of
construction shall meet both specified requirements.
Section 27-588
§ 27-588 Use of used and unidentified materials. The utilization of
used materials and unidentified or ungraded materials shall be limited
to non-structural elements, except:
(a) Such materials (or elements) may be reused, or continued in use,
at stress levels to which the materials or elements were subjected in
the previous construction, or at load capacity as demonstrated by load
test procedures as described in subdivision (a) of section 27-599 of
article three of this subchapter.
(b) Unidentified materials may be graded by the recovery and test of
representative samples, or by other means satisfactory to the
commissioner.
(c) Used materials shall be considered to be graded where the grade is
clearly indicated on the approved plans for the existing construction
and may be used at the allowable stress levels for that grade of like
material as established in the building code in force at the time the
plans for the existing construction were approved.
Table 10-1 Inspection of Materials and Assemblies
========================================================================
Elements That Shall Be Elements That Are Not
Materials Subject to Controlled Subject to Controlled
Inspection a,b,d Inspection a,c,d
------------------------------------------------------------------------
Steel None All structural elements and
connections
Concrete Materials for all structural (1) All materials for
elements proportioned on the structural elements
basis of calculated stresses proportioned on the basis of
seventy per cent or greater, calculated stresses less than
of basic allowable values. seventy per cent of basic
See article five for allowable values
specific requirements (2) Concrete materials for:
relating to "quality control (a) Short span floor and roof
of materials and batching." construction proportioned
as per section 27-610.
(b) Walls and footings for
buildings in occupancy
group J-3.
(3) Metal reinforcement.
Aluminum None All structural elements and
connections.
Wood None All structural elements and
connections.
Reinforced None All structural elements.
gypsum
concrete
Masonry None All structural elements.
Other Requirements as may be
established in other
subchapters of this code
or by the commissioner.
Notes:
a For general provisions relating to inspection see section 27-132.
b All structural materials and assemblies subject to controlled
inspection shall be tested and/or inspected at their place of
manufacture and evidence of compliance with the provisions of this
subchapter shall be provided as stipulated in articles four through
twelve.
c Mill, manufacturer's and supplier's inspection and test reports will
be accepted as evidence of compliance with the provisions of this code
for all structural materials and assemblies not subject to controlled
inspection.
d Basic allowable stress values as referenced herein shall denote
allowable stress value without increase for infrequent stress conditions
as established in this code or in the applicable reference standard for
the material or element in its proposed use. Notes:
Table 10-2 Inspection of Methods of Construction
========================================================================
Operations on Structural Operations on Structural
Elements That Shall Be Elements That Are Not
Subject to Controlled Subject to Controlled
Materials Inspection a,b,d Inspection a,c,d
------------------------------------------------------------------------
Steel (1) Welding operations and (1) Welding operations and
the tensioning of high the tensioning of high
strength bolts in connections strength bolts in connections
where the calculated stresses where the calculated stresses
in the welds or bolts are in the welds or bolts are
fifty per cent or more of less than fifty per cent of
basic allowable values. basic allowable values.
(2) Connection of fittings to (2) All other fabrication and
wire cables for suspended erection operations not
structures, except where designated for controlled
cables together with their inspection.
attached fittings are
proof-loaded to not less
than fifty-five per cent
of ultimate capacity.
Concrete Except for those operations (1) All operations relating
specifically designated in to the construction of
this table as not subject to members and assemblies (other
controlled inspection, for than pre-stressed members)
all concrete, the operations which involve the placement
described in subdivision of a total of less than fifty
(a) of section 27-607 shall cubic yards of concrete and
be subject to controlled wherein said concrete is used
inspection. at levels of calculated stress
seventy per cent or less of
basic allowable values.
(2) Placing and curing
of concrete for all:
(a) Short span floor and
roof construction as per
section 27-610.
(b) Walls and footings for
buildings in occupancy
group J-3.
(3) Size and location of
reinforcement for walls and
footings for buildings in
occupancy group J-3.
(4) All other operations
not described in
subdivision (a)
of section 27-607.
Aluminum Welding operations in (1) Welding operations in
connections where the cal- connections where the cal-
culated stresses in the culated stresses in the welds
welds are fifty per cent are less than fifty per cent
or more of the basic of basic allowable values.
allowable values. (2) All other fabrication
and erection operations
not designated for
controlled inspection.
Wood Fabrication of All other operations not
glued-laminated assemblies designated for controlled
and of plywood components. inspection.
Reinforced None All operations incident to
Gypsum the fabrication and placement
Concrete of structural elements.
Reinforced (1) Fabrication of (1) All masonry work for
Masonry prefabricated units. buildings in occupancy
(2) Placement and bedding of group J-3.
units; sizes of members, (2) All mixing of mortar.
including thickness of walls (3) All other operations
and wythes; sizes of columns; not designated for
the size and position of controlled inspection.
reinforcement, in place, and
provisions for curing and
protection against freezing
for all reinforced masonry
construction unless such
operations are specifically
not designated for controlled
inspection.
Un- Placement and bedding of units (1) All masonry work for
reinforced and sizes of members buildings in occupancy
Masonry including thickness of walls group J-3.
and wythes; sizes of columns; (2) All mixing of mortar.
cleanouts; and provisions (3) All other operations not
for curing and protection designated for controlled
against freezing for all inspection.
masonry construction
proportioned on the basis
of structural analysis as
described in section four of
reference standard RS 10-1B,
unless such operations are
specifically not designated
for controlled inspection.
Piling See provisions of subchapter eleven.
Other Requirements as may be established
in other subchapters of this code.
========================================================================
a For general provisions relating to inspection see section 27-132.
b All construction operations designated for controlled inspection
shall be inspected by the architect or engineer designated for
controlled inspection during the performance of such operation.
c Certification by the fabricator or erector, as applicable, will be
accepted as evidence of compliance with the provisions of this code for
all construction operations not subject to controlled inspection.
d Basic allowable stress values as referenced herein shall denote
allowable stress value without increase for infrequent stress conditions
as established in this code or in the applicable reference standard for
the material or element in its proposed use.
Section 27-589
§ 27-589 Equivalent systems of design. Nothing in this subchapter
shall be construed to prohibit the use of any system of design,
alternate to those indicated, provided that it can be demonstrated to
the satisfaction of the commissioner that such system of design will
provide a factor of safety against structural failure consistent with
the requirements of articles four through twelve of this subchapter,
fire safety in consonance with the requirements of subchapters three
through eight of this chapter, and such other characteristics pertinent
to the safety of life, health, and property as prescribed in this
subchapter or as may be required by the commissioner.
Alternate or equivalent materials or methods of construction shall be
subject to the provisions of section 27-133 of article seven of
subchapter one of this chapter.
Section 27-590
§ 27-590 Deferred detailing. Where structural elements are normally
detailed on shop or working drawings, the application for the permit
shall so state, and issuance of the permit shall be conditioned upon
future submission of such shop or working drawings showing the approval
of an architect or engineer with regard to such elements, or of a signed
statement by an architect or engineer to the effect that such drawings
were prepared to his or her satisfaction. In cases where the detailing
of structural elements has been made on the basis of fire-resistance
ratings, load tables, or similar data as given in manufacturer's
catalogues, the application for approval of the plans shall so state and
issuance of such acceptance shall be conditional upon submission of a
statement by the manufacturer, or of other supporting documentary
evidence of accreditation furnished by the manufacturer, attesting to
the accuracy of the data and stating that such data were derived in
conformance with the provisions of this code. Where the detailing of
structural elements has been made on the basis of data published in
technical documents of recognized authority issued by, or accredited by,
the agency or association promulgating the applicable reference standard
cited in this code, such statements will not be required.
To the extent possible under law, Friends of Devin Balkind for Public Advocate has waived all copyright and related or neighboring rights to New York City Administrative Code. This work is published from: United States.
Special thanks to Benjarmin Kallos and Thom Neale who made this content publicly available as a bulk download.