Special inspections and tests of elements
and nonstructural components of buildings and structures
shall meet the applicable requirements of this section.
Special inspections and tests shall
be required for proposed work that is, in the opinion of the
building official, unusual in its nature, such as, but not
limited to, the following examples:
- Construction materials and systems that are alternatives to materials and systems prescribed by this code.
- Unusual design applications of materials described in this code.
- Materials and systems required to be installed in accordance with additional manufacturer's instructions that prescribe requirements not contained in this code or in standards referenced by this code.
The special inspections and nondestructive
testing of steel construction in buildings, structures,
and portions thereof shall be in accordance with this
section.
Exception: Special inspections of the steel fabrication
process shall not be required where the fabricator does not
perform any welding, thermal cutting or heating operation
of any kind as part of the fabrication process. In such
cases, the fabricator shall be required to submit a detailed
procedure for material control that demonstrates the fabricator's
ability to maintain suitable records and procedures
such that, at any time during the fabrication process, the
material specification and grade for the main stress-carrying
elements are capable of being determined. Mill test
reports shall be identifiable to the main stress-carrying elements
when required by the approved construction documents.
Special inspections and nondestructive
testing of structural steel elements in buildings,
structures and portions thereof shall be in accordance with
the quality assurance inspection requirements of AISC
360.
Exception: Special inspection of railing systems composed
of structural steel elements shall be limited to
welding inspection of welds at the base of cantilevered
rail posts.
Special inspections and
qualification of welding special inspectors for cold-formed
steel floor and roof deck shall be in accordance with the
quality assurance inspection requirements of SDI QA/QC.
Special
inspections of open-web steel joists and joist girders in
buildings, structures and portions thereof shall be in accordance
with Table 1705.2.3.
For SI: 1 inch = 25.4 mm.
| TYPE | CONTINUOUS SPECIAL INSPECTION |
PERIODIC SPECIAL INSPECTION |
REFERENCED STANDARD#a |
|
|||
|
- | X | SJI specific ations listed in Section 2207.1. |
|
- | ||
|
- | X | SJI specific ations listed in Section 2207.1. |
|
X | ||
- Where applicable, see also Section 1705.12, Special inspections for seismic resistance.
Where a cold-formed steel truss clear span is 60
feet (18288 mm) or greater, the special inspector shall
verify that the temporary installation restraint/bracing and
the permanent individual truss member restraint/bracing
are installed in accordance with the approved truss submittal
package.
Special inspections and tests
of concrete construction shall be performed in accordance
with this section and Table 1705.3.
For SI: 1 inch = 25.4 mm.
Exception: Special inspections and tests shall not be
required for:
- Isolated spread concrete footings of buildings three stories or less above grade plane that are fully supported on earth or rock.
- Continuous concrete footings supporting walls of
buildings three stories or less above grade plane that
are fully supported on earth or rock where:
- The footings support walls of light-frame construction.
- The footings are designed in accordance with Table 1809.7.
- The structural design of the footing is based on a specified compressive strength, f 'c, not more than 2,500 pounds per square inch (psi) (17.2 MPa), regardless of the compressive strength specified in the approved construction documents or used in the footing construction.
- Nonstructural concrete slabs supported directly on the ground, including prestressed slabs on grade, where the effective prestress in the concrete is less than 150 psi (1.03 MPa).
- Concrete foundation walls constructed in accordance with Table 1807.1.6.2.
- Concrete patios, driveways and sidewalks, on grade.
| TYPE | CONTINUOUS SPECIAL INSPECTION |
PERIODIC SPECIAL INSPECTION |
REFERENCED STANDARDa |
IBC REFERENCE |
|
- | X | ACI 318 Ch. 20, 25.2, 25.3, 26.6.1-26.6.3 |
1908.4 |
|
- X |
X X |
AWS D1.4 ACI 318: 26.6.4 |
- |
|
- | X | ACI 318: 17.8.2 | - |
X |
X |
ACI 318: 17.8.2.4 ACI 318: 17.8.2 |
- | |
|
- | X | ACI 318: Ch. 19,26.4.3, 26.4.4 | 1904.1, 1904.2,1908.2, 1908.3 |
| X | - | ASTM C172 ASTM C31 ACI 318: 26.4, 26.12 |
1908.10 | |
|
X | - | ACI 318: 26.5 | 1908.6, 1908.7, 1908.8 |
|
- | X | ACI 318: 26.5.3-26.5.5 | 1908.9 |
|
X X |
- - |
ACI 318: 26.10 | - |
|
- | X | ACI 318: Ch. 26.8 | - |
| - | X | ACI 318: 26.11.2 | - | |
|
- | X | ACI 318: 26.11.1.2(b) | - |
- Where applicable, see also Section 1705.12, Special inspections for seismic resistance.
- Specific requirements for special inspection shall be included in the research report for the anchor issued by an approved source in accordance with 17.8.2 in ACI 318, or other qualification procedures. Where specific requirements are not provided, special inspection requirements shall be specified by the registered design professional and shall be approved by the building official prior to the commencement of the work.
Special inspections
of welding and qualifications of special inspectors
for reinforcing bars shall be in accordance with the
requirements of AWS D1.4 for special inspection and of
AWS D1.4 for special inspector qualification.
In the absence of sufficient data
or documentation providing evidence of conformance to
quality standards for materials in Chapters 19 and 20 of
ACI 318, the building official shall require testing of materials
in accordance with the appropriate standards and criteria
for the material in Chapters 19 and 20 of ACI 318.
Special inspections and tests
of masonry construction shall be performed in accordance
with the quality assurance program requirements of TMS
402/ACI 530/ASCE 5 and TMS 602/ACI 530.1/ASCE 6.
Exception: Special inspections and tests shall not be
required for:
- Empirically designed masonry, glass unit masonry or masonry veneer designed in accordance with Section 2109, 2110 or Chapter 14, respectively, where they are part of a structure classified as Risk Category I, II or III.
- Masonry foundation walls constructed in accordance with Table 1807.1.6.3(1), 1807.1.6.3(2), 1807.1.6.3(3) or 1807.1.6.3(4).
- Masonry fireplaces, masonry heaters or masonry chimneys installed or constructed in accordance with Section 2111, 2112 or 2113, respectively.
Special inspections and tests for empirically designed
masonry, glass unit masonry or masonry veneer designed
in accordance with Section 2109, 2110 or Chapter 14,
respectively, where they are part of a structure classified
as Risk Category IV shall be performed in accordance with
TMS 402/ACI 530/ASCE 5, Level B Quality Assurance.
Special inspections of prefabricated
wood structural elements and assemblies shall be in
accordance with Section 1704.2.5. Special inspections of sitebuilt
assemblies shall be in accordance with this section.
High-load diaphragms
designed in accordance with Section 2306.2 shall be
installed with special inspections as indicated in Section
1704.2. The special inspector shall inspect the wood structural
panel sheathing to ascertain whether it is of the grade
and thickness shown on the approved construction documents.
Additionally, the special inspector must verify the
nominal size of framing members at adjoining panel
edges, the nail or staple diameter and length, the number
of fastener lines and that the spacing between fasteners in
each line and at edge margins agrees with the approved
construction documents.
Where a truss clear span is 60 feet (18288 mm) or greater, the special inspector shall verify that
the temporary installation restraint/bracing and the permanent
individual truss member restraint/bracing are
installed in accordance with the approved truss submittal
package.
Special inspections and tests of existing site soil
conditions, fill placement and load-bearing requirements
shall be performed in accordance with this section and Table
1705.6. The approved geotechnical report and the construction
documents prepared by the registered design professionals shall be used to determine compliance. During fill
placement, the special inspector shall verify that proper materials
and procedures are used in accordance with the provisions
of the approved geotechnical report.
Exception: Where Section 1803 does not require reporting
of materials and procedures for fill placement, the special
inspector shall verify that the in-place dry density of
the compacted fill is not less than 90 percent of the maximum
dry density at optimum moisture content determined
in accordance with ASTM D1557.
| TYPE | CONTINUOUS SPECIAL INSPECTION |
PERIODIC SPECIAL INSPECTION |
|
- | X |
|
- | X |
|
- | X |
|
x | - |
|
- | X |