Section 1705A — California Building Code (Title 24, Part 2)

REQUIRED SPECIAL INSPECTIONS AND TESTS

1705 A .1 General. Special inspections and tests of elements and nonstructural components of buildings and structures shall meet the applicable requirements of this section.

1705 A .1.1 Special cases. 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.

1705 A .2 Steel construction. 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 fabrication process for the entire building or structure does not include any welding, thermal cutting or heating operation of any kind. 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 stresscarrying elements where required by the approved construction documents.

1705 A .2.1 Structural steel. Special inspections and nondestructive testing of structural steel elements in buildings, structures and portions thereof shall be in accordance with the quality assurance requirements of this section, Chapter 22A and quality control requirements of AISC 360, AISC 341 and AISC 358.

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.

AISC 360, Chapter N and AISC 341, Chapter J are adopted, except as noted below:

The following provisions of AISC 360, Chapter N are not adopted:

1. N4, Item 2 (Quality Assurance Inspector Qualifications).

2. N5, Item 2 (Quality Assurance).

3. N5, Item 3 (Coordinated Inspection).

4. N5, Item 4 (Inspection of Welding).

SPECIAL INSPECTIONS AND TESTS

1704 A .5 Submittals to the building official. In addition to the submittal of reports of special inspections and tests in accordance with Section 1704 A .2.4, reports and certificates shall be submitted by the owner or the owner’s authorized agent to the building official for each of the following:

[OSHPD 1 & 4] Certificates of compliance for the fabrication of structural, load-bearing or lateral load-resisting members or assemblies on the premises of an approved fabricator in accordance with Section 1704 A .2.5.1.

2 . Certificates of compliance for the manufacturer’s certi- fication of nonstructural components, supports and attachments in accordance with Section 1705 A .14.2.

3 . Certificates of compliance for equipment/components requiring special seismic certification in accordance with Section 1705 A .14.3.

4 . Reports of preconstruction tests for shotcrete in accordance with ACI 318 and 1705A.3.9.2.

5 . Certificates of compliance for open web steel joists and joist girders in accordance with Section 2207 A .5.

6 . Reports of material properties verifying compliance with the requirements of AWS D1.4 for weldability as specified in Section 26.6.4 of ACI 318 for reinforcing bars in concrete complying with a standard other than ASTM A706 that are to be welded.

7 . Reports of mill tests in accordance with Section 20.2.2.5 of ACI 318 for reinforcing bars complying with ASTM A615 and used to resist earthquakeinduced flexural or axial forces in the special moment frames, special structural walls or coupling beams connecting special structural walls of seismic force-resisting systems in structures assigned to Seismic Design Category D, E or F.

1704 A .6 Structural observations. The owner shall employ a registered design professional to perform structural observations. The structural observer shall visually observe representative locations of structural systems, details and load paths for general conformance to the approved construction documents. Structural observation does not include or waive the responsibility for the inspections in Section 110 or the special inspections in Section 1705 A or other sections of this code. Prior to the commencement of observations, the structural observer shall submit to the building official a written statement identifying the frequency and extent of structural observations. At the conclusion of the work included in the permit, the structural observer shall submit to the building official a written statement that the site visits have been made and identify any reported deficiencies that, to the best of the structural observer’s knowledge, have not been resolved.

[DSA-SS, DSA-SS/CC] Reference to Section 110 shall be to the California Administrative Code instead.

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SPECIAL INSPECTIONS AND TESTS

2211A.1.3.3 for requirements applicable to manufac- tured trusses specified therein.

1705A.2.5 Inspection and tests of structural welding. Inspection and testing (including nondestructive testing) of all shop and field welding operations shall be in accor- dance with this section, Section 1705A.2.1 and Table 1705A.2.1. Inspections shall be made by a qualified weld- ing inspector approved by the enforcement agency. The minimum requirements for a qualified welding inspector shall be as those for an AWS certified welding inspector (CWI), as defined in the provisions of the AWS QC1.

[DSA-SS, DSA-SS/CC] Welding inspector approval by the enforcement agency shall occur when specified in the California Administrative Code. Nondestructive testing shall be performed by qualified NDT Level II personnel employed by the approved agency.

The welding inspector shall make a systematic daily record of all welds. In addition to other required records, this record shall include:

1. Identification marks of welders.

2. List of defective welds.

3. Manner of correction of defects.

The welding inspector shall check the material, details of construction and procedure, as well as workmanship of the welds. The inspector shall verify that the installation and testing of end-welded stud shear connectors is in accordance with the requirements of Section 2213A.2 ( [DSA-SS/CC] 2212.6.2) and the approved plans and specifications. The approved agency shall furnish the architect, structural engineer and the enforcement agency with a verified report that the welding has been done in conformance with AWS D1.1, D1.3, D1.4, D1.8 and the approved construction documents.

1705A.2.6 Special inspection and tests of high-strength fastener assemblies. Special inspections and tests for high-strength fasteners shall be in accordance with this section, Section 1705A.2.1 and Table 1705A.2.1. High- strength bolts, nuts and washers shall be sampled and tested by an approved agency for conformance with the requirements of applicable ASTM standards [OSHPD 1 & 4] and in accordance with Section 2213A.1.

[DSA-SS, DSA-SS/CC] The minimum requirements for a qualified high-strength bolting special inspector shall be an International Code Council certified Structural Steel and Bolting Special Inspector (S1).

1705 A .3 Concrete construction. Special inspections and tests of concrete construction shall be performed in accordance with this section and Table 1705 A .3.

Exception: Special inspections and tests shall not be required for concrete patios, driveways and sidewalks, on grade.

1705 A .3.1 Welding of reinforcing bars. Special inspections of welding and qualifications of special inspectors for reinforcing bars shall be in accordance with 1705A.2.5, the requirements of AWS D1.4 for special inspection and of AWS D1.4 for special inspector qualification.

5. N6 (Approved Fabricators and Erectors).

6. N7 (Nonconforming Material and Workmanship).

Additionally, the requirements of Table 1705A.2.1 of the California Building Code shall apply.

In addition to the quality assurance requirements con- tained in AISC 341, Chapter J, Section J5 (Inspection Tasks), the requirements of Section 1704A.3 and Table 1705A.2.1 of the California Building Code shall apply.

[DSA-SS, DSA-SS/CC] Modify AISC 360, Section N5.5(b), as follows:

For structures in Risk Category II, III or IV, UT shall be performed by QA on all complete-joint-penetration (CJP) groove welds subject to transversely applied tension loading in butt, T- and corner joints, in material ⁵ /16 in. (8 mm) thick or greater.

1705 A .2.2 Cold-formed steel deck. Special inspections for cold-formed steel floor and roof deck shall be in accordance with the quality assurance inspection requirements of SDI QA/QC.

Deck weld special inspection and testing shall also sat- isfy requirements in Table 1705A.2.1 and Section 1705A.2.5.

1705 A .2.3 Open-web steel joists and joist girders. Special inspections of open-web steel joists and joist girders in buildings, structures and portions thereof shall be in accordance with Table 1705 A .2.3.

1705A.2.3.1 Steel joist and joist girder inspection. Special inspection is required during the manufacture and welding of steel joists or joist girders. The approved agency shall verify that proper quality con- trol procedures and tests have been employed for all materials and the manufacturing process, and shall perform visual inspection of the finished product. The approved agency shall place a distinguishing mark, and/or tag with this distinguishing mark, on each inspected joist or joist girder. This mark or tag shall remain on the joist or joist girder throughout the job site receiving and erection process.

1705 A .2.4 Cold-formed steel trusses spanning 60 feet or greater. Where a cold-formed steel truss clear span is 60 feet (18 288 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.

1705A.2.4.1 Light-framed steel truss inspection and testing. Regardless of truss span, the manufacture of cold-formed light framed steel trusses shall be contin- uously inspected by an approved agency. The approved agency shall verify conformance of materi- als and manufacture with approved plans and specifi- cations. The approved agency shall place a distinguishing mark, and/or tag with this distinguish- ing mark, on each inspected truss. This mark or tag shall remain on the truss throughout the job site receiving and erection process. Refer to Section

SPECIAL INSPECTIONS AND TESTS

TABLE 1705A.2.1 REQUIRED SPECIAL INSPECTIONS AND TESTS OF STEEL CONSTRUCTION

TYPE	CONTINUOUS SPECIAL INSPECTION	PERIODIC SPECIAL INSPECTION	REFERENCED STANDARD	CBC REFERENCEa
1. Material identification and testing of high-strength bolts, nuts and washers:
a. Identification markings to conform to ASTM standards specified in the approved construction documents.	—	X	RCSC: 1.5, AISC 360: A3.3, J3.1 and applicable ASTM material standards	2202A.1, [DSA- SS/CC] 2202.1
b. Manufacturer's certificate of compliance required.	—	X	RCSC: 1.5 & 2.1; AISC 360: A3.3 & N3.2	—
c. Testing of high-strength bolts, nuts and washers.	—	—	RCSC: 7.2, Applicable ASTM material standards	*1705A.2.6,* *[OSHPD 1 & 4]* 2213A.1
2. Inspection of high-strength bolting:
a. Snug-tight joints.	—	X	_ RCSC: 7-9,_ AISC 360: J3.1, J3.2, M2.5 & N5.6	1705A.2.6, 2204A.2, [DSA- SS/CC] 2204.2
b. Pretensioned and slip-critical joints using turn-of-nut with matchmarking, twist-off bolt or direct tension indicator methods of installation	—	X	X	X
c. Pretensioned and slip-critical joints using turn-of-nut without matchmarking or calibrated wrench methods of installation.	_ X_	_ —_	_ —_	_ —_
3. Material identification and testing of structural steel and cold-formed steel deck:
a. For structural steel, identification markings to conform to AISC 360.	—	X	AISC 360: A3.1	2202A.1, [DSA- SS/CC] 2202.1
b. For other steel, identification markings to conform to ASTM standards specified in the approved construction documents.	—	X	Applicable ASTM material standards	2202A.1, [DSA- SS/CC] 2202.1
c. Manufacturer's certified test reports.	—	X	AISC 360: A3.1& N3.2	—
d. Testing of unidentified steel.	—	—	Applicable ASTM material standards	2202A.1, [DSA- SS/CC] 2202.1
4. Material identification of welding consumables and testing of welded elements:
a. Identification markings to conform to AWS specification in the approved construction documents.	—	X	AISC 360, A3.5 & N3.2 and applicable AWS A5 documents	—
b. Manufacturer's certificate of compliance required.	—	X	AISC 360: N3.2	—
c. Nondestructive testing of welded joints.	—	—	AISC 360: N5.5	—
5. Inspection of welding:	5. Inspection of welding:	5. Inspection of welding:	5. Inspection of welding:	5. Inspection of welding:
a. Structural steel and cold-formed steel deck:
1. Complete and partial joint penetration groove welds	X	—	AISC 360: J2, M2.4, & M4.5, AWS D1.1 AWS D1.8	1705A.2.1, 1705A.2.5
2. Multipass fillet welds.	X	—	—	—
3. Single-pass fillet welds >5/16"	X	—	—	—
4.Plug and slot welds.	X	—	—	—
5. Single-pass fillet welds≤ 5/16"	—	X	X	X
6. Floor and roof deck welds.	—	X	AWS D1.3, SDI QA/QC	1705A.2.1, 1705A.2.2 1705A.2.5
7. End-welded studs.	—	X	AWS D1.1	1705A.2.5, 2213A.2, [DSA- SS/CC] 2212.6.2
8. Welded sheet steel for cold-formed framing members	—	X	AWS D1.3	1705A.2.5, 1705A.2.4.1
b. Reinforcing steel				Table 1705A.3, Item 2
6. Inspection of steel frame joint details for compliance:
a. Details such as bracing and stiffening.	—	X	AISC 360: N5.8	1705A.2.1
b. Member locations.	—	X	X	X
c. Application of joint details at each connection.	—	X	X	X

For SI: 1 inch = 25.4 mm. a. Where applicable, see also Section 1705A.13, Special inspections for seismic resistance.

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SPECIAL INSPECTIONS AND TESTS

TABLE 1705 A .2.3 REQUIRED SPECIAL INSPECTIONS OF OPEN-WEB STEEL JOISTS AND JOIST GIRDERS

TYPE	CONTINUOUS SPECIAL INSPECTION	PERIODIC SPECIAL INSPECTION	REFERENCED STANDARDa
1. Installation of open-web steel joists and joist girders.
a. End connections – welding or bolted.	—	X	SJI specifications listed in Section 2207.1.
b. Bridging – horizontal or diagonal.	—	—	—
1. Standard bridging.	—	X	SJI specifications listed in Section 2207.1.
2. Bridging that differs from the SJI specifications listed in Section 2207.1.	—	X	—

For SI: 1 inch = 25.4 mm. a. Where applicable, see Section 1705 A .13.

1705 A .3.2 Material tests. In the absence of sufficient data or documentation providing evidence of conformance to quality standards for materials in Chapters 19, 20 and 26 of ACI 318, as modified by Chapter 19A, the building official shall require testing of materials in accordance with the appropriate standards and criteria for the material in Chapters 19, 20 and 26 of ACI 318 as modified by Chapter 19A. Cementitious materials shall be in accordance with