The provisions of this chapter shall govern the quality, workmanship and requirements for materials covered. Materials of construction and tests shall conform to the applicable standards listed in this code.
New building materials, equipment, appliances, systems or methods of construction not provided for in this code, and any material of questioned suitability proposed for use in the construction of a building or structure, shall be subjected to the tests prescribed in this chapter and in the approved rules to determine character, quality and limitations of use.
Where application is made to the building official for construction as specified in Section 105, the owner or the owner's authorized agent, other than the contractor, shall employ one or more approved agencies to provide special inspections and tests during construction on the types of work specified in Section 1705 and identify the approved agencies to the building official. These special inspections and tests are in addition to the inspections by the building official that are identified in Section 110.
Prior to the start of the construction, the approved agencies shall provide written documentation to the building official demonstrating the competence and relevant experience or training of the special inspectors who will perform the special inspections and tests during construction. Experience or training shall be considered to be relevant where the documented experience or training is related in complexity to the same type of special inspection or testing activities for projects of similar complexity and material qualities. These qualifications are in addition to qualifications specified in other sections of this code.
The registered design professional in responsible charge and engineers of record involved in the design of the project are permitted to act as the approved agency and their personnel are permitted to act as special inspectors for the work designed by them, provided they qualify as special inspectors.
Exception: A statement of special inspections is not required for portions of structures designed and constructed in accordance with the cold-formed steel light-frame construction provisions of Section 2211.1.2 or the conventional light-frame construction provisions of Section 2308.
Where fabrication of structural, load-bearing or lateral load-resisting members or assemblies is being conducted on the premises of a fabricator's shop, special inspections of the fabricated items shall be performed during fabrication, except where the fabricator has been approved to perform work without special inspections in accordance with Section 1704.2.5.1.
Where special inspections or tests are required by Section 1705, the registered design professional in responsible charge shall prepare a statement of special inspections in accordance with Section 1704.3.1 for submittal by the applicant in accordance with Section 1704.2.3.
The statement of special inspections shall identify the following:
Where required by the provisions of Section 1704.6.1, 1704.6.2 or 1704.6.3, the owner or the owner's authorized agent shall employ a registered design professional to perform structural observations. Structural observation does not include or waive the responsibility for the inspections in Section 110 or the special inspections in Section 1705 or other sections of this code.
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.
Structural observations shall be provided for those structures where one or more of the following conditions exist:
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 stress-carrying elements where 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.
|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.
For SI: 1 inch = 25.4 mm.
Exception: Special inspections and tests shall not be required for:
|PERIODIC SPECIAL |
|1. Inspect reinforcement, including prestressing |
tendons, and verify placement.
|—||X||ACI 318: Ch. 20, 25.2, 25.3, 26.6.1-26.6.3||1908.4|
|2. Reinforcing bar welding: ||— |
|AWS D1.4 |
ACI 318: 26.6.4
|3. Inspect anchors cast in concrete.||—||X||ACI 318: 17.8.2||—|
|4. Inspect anchors post-installed in hardened concrete members.b ||X||X|| |
ACI 318: 184.108.40.206ACI 318: 17.8.2
|5. Verify use of required design mix.||—||X||ACI 318: Ch. 19, 26.4.3, 26.4.4||1904.1, 1904.2,|
|6. Prior to concrete placement, fabricate speci- |
mens for strength tests, perform slump and aircontent tests, and determine the temperature of
|X||—||ASTM C172 |
ASTM C31ACI 318: 26.5, 26.12
|7. Inspect concrete and shotcrete placement for |
proper application techniques.
|X||—||ACI 318: 26.5||1908.6, 1908.7, 1908.8|
|8. Verify maintenance of specified curing temperature |
|—||X||ACI 318: 26.5.3-26.5.5||1908.9|
|9. Inspect prestressed concrete for: ||X |
|ACI 318: 26.10||—|
|10. Inspect erection of precast concrete members.||—||X||ACI 318: 26.9||—|
|11. Verify in-situ concrete strength, prior to stress- |
ing of tendons in post-tensioned concrete andprior to removal of shores and forms from
beams and structural slabs.
|—||X||ACI 318: 26.11.2||—|
|12. Inspect formwork for shape, location and||—||X||ACI 318: 220.127.116.11(b)||—|
For SI: 1 inch = 25.4 mm.
|TYPE||CONTINUOUS SPECIAL INSPECTION||PERIODIC SPECIAL INSPECTION|
|1. Inspection of anchorage and connections of mass timber construction
to timber deep foundation systems.
|2. Inspect erection and sequence of mass timber construction.||X|
|3. Inspection of connections where installation methods are required to meet design loads.|
|3.1. Threaded fasteners.|
|3.1.1. Verify use of proper installation equipment.||X|
|3.1.2. Verify use of predrilled holes where required.||X|
|3.1.3. Inspect screws, including diameter, length, head type, spacing, installation angle, and depth.||X|
|3.2. Adhesive anchors installed in horizontal or upwardly inclined orientation to resist sustained tension loads.||X|
|3.3. Adhesive anchors not defined in 3.2.||X|
|3.4. Bolted connections.||X|
|3.5. Concealed connections.||X|
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.
REQUIRED SPECIAL INSPECTIONS AND TESTS OF SOILS
|TYPE||CONTINUOUS SPECIAL |
|PERIODIC SPECIAL |
|1. Verify materials below shallow foundations are adequate to achieve the design bearing |
|2. Verify excavations are extended to proper depth and have reached proper material.||—||X|
|3. Perform classification and testing of compacted fill materials.||—||X|
|4. Verify use of proper materials, densities and lift thicknesses during placement and com- |
paction of compacted fill.
|5. Prior to placement of compacted fill, inspect subgrade and verify that site has been pre- |
Special inspections and tests shall be performed during installation of driven deep foundation elements as specified in Table 1705.7. The approved geotechnical report and the construction documents prepared by the registered design professionals shall be used to determine compliance.
|TYPE||CONTINUOUS SPECIAL INSPECTION||PERIODIC SPECIAL INSPECTION|
|1. Verify element materials, sizes and lengths comply with the requirements.||X||—|
|2. Determine capacities of test elements and conduct additional load tests, as required.||X||—|
|3. Inspect driving operations and maintain complete and accurate records for each element.||X||—|
|4. Verify placement locations and plumbness, confirm type and size of hammer, record number of blows per foot of penetration, determine required penetrations to achieve design capacity, record tip and butt elevations and document any damage to foundation element.||X||—|
|5. For steel elements, perform additional special inspections in accordance with Section 1705.2.||—||—|
|6. For concrete elements and concrete-filled elements, perform tests and additional special inspections in accordance with Section 1705.3.||—||—|
|7. For specialty elements, perform additional inspections as determined by the registered design professional in responsible charge.||—||—|
Special inspections and tests shall be performed during installation of cast-in-place deep foundation elements as specified in Table 1705.8. The approved geotechnical report and the construction documents prepared by the registered design professionals shall be used to determine compliance.
|TYPE||CONTINUOUS SPECIAL |
|PERIODIC SPECIAL |
|1. Inspect drilling operations and maintain complete and accurate records for each element.||X||—|
|2. Verify placement locations and plumbness, confirm element diameters, bell diameters (if |
applicable), lengths, embedment into bedrock (if applicable) and adequate end-bearing stratacapacity. Record concrete or grout volumes.
|3. For concrete elements, perform tests and additional special inspections in accordance with||—||—|
Continuous special inspection is required during field gluing operations of elements of the main windforce-resisting system. Periodic special inspection is required for nailing, bolting, anchoring and other fastening of elements of the main windforce-resisting system, including wood shear walls, wood diaphragms, drag struts, braces and hold-downs.
Exception: Special inspections are not required for wood shear walls, shear panels and diaphragms, including nailing, bolting, anchoring and other fastening to other elements of the main windforce-resisting system, where the lateral resistance is provided by sheathing of wood structural panels, and the fastener spacing of the sheathing is more than 4 inches (102 mm) on center.
Periodic special inspection is required for welding operations of elements of the main windforce-resisting system. Periodic special inspection is required for screw attachment, bolting, anchoring and other fastening of elements of the main windforce-resisting system, including shear walls, braces, diaphragms, collectors (drag struts) and hold-downs.
Periodic special inspection is required for fastening of the following systems and components:
Special inspections of structural steel elements in the seismic force-resisting systems of buildings and structures assigned to Seismic Design Category B, C, D, E or F other than those covered in Section 1705.12.1.1, including struts, collectors, chords and foundation elements, shall be performed in accordance with the quality assurance requirements of AISC 341.
Exception: Special inspections are not required for wood shear walls, shear panels and diaphragms, including nailing, bolting, anchoring and other fastening to other elements of the seismic force-resisting system, where the lateral resistance is provided by sheathing of wood structural panels, and the fastener spacing of the sheathing is more than 4 inches (102 mm) on center.
Nondestructive testing of structural steel elements in the seismic force-resisting systems of buildings and structures assigned to Seismic Design Category B, C, D, E or F other than those covered in Section 1705.13.1.1, including struts, collectors, chords and foundation elements, shall be performed in accordance with the quality assurance requirements of AISC 341.
The density of the sprayed fire-resistant material shall be not less than the density specified in the approved fire-resistance design. Density of the sprayed fire-resistant material shall be determined in accordance with ASTM E605. The test samples for determining the density of the sprayed fire-resistant materials shall be selected as follows:
Special inspections shall be required for all EIFS applications.
The test scope shall be as follows:
In the absence of applicable load test procedures contained within a material standard referenced by this code or acceptance criteria for a specific material or method of construction, such existing structure shall be subjected to an approved test procedure developed by a registered design professional that simulates applicable loading and deformation conditions. For components that are not a part of the seismic force-resisting system, at a minimum the test load shall be equal to the specified factored design loads. For materials such as wood that have strengths that are dependent on load duration, the test load shall be adjusted to account for the difference in load duration of the test compared to the expected duration of the design loads being considered. For statically loaded components, the test load shall be left in place for a period of 24 hours. For components that carry dynamic loads (for example, machine supports or fall arrest anchors), the load shall be left in place for a period consistent with the component's actual function. The structure shall be considered to have successfully met the test requirements where the following criteria are satisfied:
The test assembly shall be subjected to an increasing superimposed load equal to not less than two times the superimposed design load. The test load shall be left in place for a period of 24 hours. The tested assembly shall be considered to have successfully met the test requirements if the assembly recovers not less than 75 percent of the maximum deflection within 24 hours after the removal of the test load. The test assembly shall then be reloaded and subjected to an increasing superimposed load until either structural failure occurs or the superimposed load is equal to two and one-half times the load at which the deflection limitations specified in Section 1709.3.2 were reached, or the load is equal to two and one-half times the superimposed design load. In the case of structural components and assemblies for which deflection limitations are not specified in Section 1709.3.2, the test specimen shall be subjected to an increasing superimposed load until structural failure occurs or the load is equal to two and one-half times the desired superimposed design load. The allowable superimposed design load shall be taken as the lesser of:
The design pressure rating of exterior windows and doors in buildings shall be determined in accordance with Section 1709.5.1 or 1709.5.2. For the purposes of this section, the required design pressure shall be determined using the allowable stress design load combinations of Section 1605.3.