1705.4.3 Masonry in buildings greater than three stories in height, and engineered masonry in Risk Category IV.
BC § 1705.4.3
The minimum special inspection program for masonry designed in accordance with Section 2107 or 2108, or by chapters other than Chapters 5, 6 or 7 of TMS 402 as modified by Chapter 21 of this code, in structures classified as Risk Category IV, in accordance with Table 1604.5 of this code, and masonry in buildings greater than three stories in height, shall comply with Table 1705.4.3 of this code. Exception: Alterations to existing masonry walls where the quantity of masonry involved in any one given location does not exceed 50 contiguous square feet (4.64 m 2 ) shall be permitted to be subject to level 1 special inspection in accordance with Table 1705.4.1 when specifically identified as such on the approved construction documents by the registered design professional of record. Table 1705.4.3Level C Required Special Inspections and Tests of Masonry Construction Minimum TestsVerification of f 'm and f 'AAC in accordance with TMS 602 Article 1.4 B prior to construction and every 5,000 sq. ft. during construction.Minimum TestsVerification of f 'm and f 'AAC in accordance with TMS 602 Article 1.4 B prior to construction and every 5,000 sq. ft. during construction.Verification of proportions of materials in premixed or preblended mortar, prestressing grout, and grout other than self-consolidating grout,as delivered to the project site in accordance with TMS 602 Article 1.5B.Verification of Slump flow and Visual Stability Index (VSI) as delivered to the project site in accordance with TMS 602 Article 1.5.B.1.b.3for self-consolidating grout.Minimum Special InspectionTypeContinuousSpecial InspectionPeriodicSpecial InspectionReference for CriteriaBC SectionTMS 402TMS 602 a1. Verify compliance with required inspection provisions of the construction documents and the approved submittals.—X——Art. 1.52. Verify that the following are in compliance: a. Proportions of site-prepared mortar, grout and prestressing grout for bonded tendons.—X——Art. 2.6 A b. Grade, type, and size of reinforcement and anchor bolts, and prestressing grout for bonded tendons.———Sec. 6.1.2, 10.8Art. 2.4, 3.4 c. Placement of masonry units and construction of mortar joints.XX——Art. 3.3 B d. Placement of reinforcement, connectors and prestressing tendons and anchorages.—X—Sec. 6.1.2, 10.8Art. 3.4, 3.6 A e. Grout space prior to grouting.X———Art. 3.2 D f. Placement of grout and prestressing grout for bonded tendons.X———Art. 3.5 g. Placement of prestressing grout.X———Art. 3.6 C h. Size and location of structural elements.—X——Art. 3.3 F i. Type, size and location of anchors, including other details of anchorage of masonry to structural members, frames or other construction.X——Sec. 1.2.1(e), 14.4.3— j. Welding of reinforcement.X——Sec. 1.2.1(g), 6.1.6.1.2, 6.1.7.3, 13.7— k. Preparation, construction and protection of masonry during cold weather (temperature below 40°F) or hot weather (temperature above 90°F).—XSec. 2104.2, 2104.3—Art. 1.8 C, 1.8 D l. Application and measurement of prestressing force.X———Art. 3.6 B m. Placement of AAC masonry units and construction of thin-bed mortar joints.X———Art. 3.3 B.9, 3.3 F.1.b n. Properties of thin-bed mortar for AAC masonry.X———Art. 2.1 C.16.* Observe preparation of grout specimens, mortar specimens, and/or prisms.X——Sec. 3.1.3Art. 1.4 For SI: °C = [(°F) - 32]/1.8, 1 square foot = 0.0929 m 2 . a. The specific standards referenced are those listed in Chapter 35. * Editor's note: As numbered in L.L. 2021/126 and L.L. 2023/077. (Am. L.L. 2023/077, 6/11/2023, eff. 6/11/2023) Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2023/077.
