1704.5 Masonry Construction

Masonry construction shall be inspected and verified in accordance with the requirements of Sections 1704.5.1 through 1704.5.3, depending on the structural occupancy category of the building or structure.

Exception: Special inspections shall not be required for:

1. Masonry fireplaces, masonry heaters or masonry chimneys installed or constructed in accordance with Section 2111, 2112, or 2113, respectively.

2. Alterations to existing masonry, where the quantity of replaced masonry is less than 10 square feet (0.93 m²) in any 100 square feet (9.3 m²) of wall area, when specifically exempted on the approved construction documents.

The minimum inspection program for empirically designed masonry, glass unit masonry and masonry veneer designed by Section 2109, 2110, or Chapter 14, respectively, or by Chapter 5, 6 or 7 of TMS 402/ACI 530/ASCE 5, in structures classified as structural occupancy category IV, in accordance with Table 1604.5, shall comply with Table 1704.5.1.

TABLE 1704.5.1 LEVEL 1 REQUIRED VERIFICATION AND INSPECTION OF MASONRY CONSTRUCTION

VERIFICATION AND INSPECTION	FREQUENCY OF INSPECTION		REFERENCE FOR CRITERIA
	Continuous	Periodic	BC Section	TMS 402/ACI 530/ASCE 5a	TMS 602/ACI 530.1/ASCE 6a
1. Compliance with required inspection provisions of the construction documents and the approved submittals shall be verified.	‒	X	‒	‒	Art. 1.5
2. Verification of f'm and f'AAC prior to construction except where specifically exempted by this code.	‒	X	‒	‒	Art. 1.4B
3. Verification of slump flow and VSI as delivered to the site for self-consolidating grout.	X	‒	‒	‒	Art. 1.5B.1.b.3
4. As masonry construction begins, the following shall be verified to ensure compliance:
a. Proportions of site-prepared mortar.	‒	X	‒	‒	Art. 2.6A
b. Construction of mortar joints.	‒	X	‒	‒	Art. 3.3B
c. Location of reinforcement, connectors, prestressing tendons and anchorages.	‒	X	‒	‒	Art. 3.4, 3.6A
d. Prestressing technique.	‒	X	‒	‒	Art. 3.6B
e. Grade and size of prestressing tendons and anchorages.	‒	X	‒	‒	Art. 2.4B, 2.4H
5. During construction the inspection program shall verify:
a. Size and location of structural elements.	‒	X	‒	‒	Art. 3.3F
b. Type, size and location of anchors, including other details of anchorage of masonry to structural members, frames or other construction.	‒	X	‒	Sec. 1.2.2(e), 1.16.1	‒
c. Specified size, grade and type of reinforcement, anchor bolts, prestressing tendons and anchorages.	‒	X	‒	Sec. 1.15	Art. 2.4, 3.4
d. Welding of reinforcing bars.	X	‒	‒	Sec. 2.1.9.7.2, 3.3.3.4(b)	‒
e. Preparation, construction and protection of masonry during cold weather (temperature below 40°F) or hot weather (temperature above 90°F).	‒	X	Sec. 2104.3, 2104.4	‒	Art. 1.8C, 1.8D
f. Application and measurement of prestressing force.	X	‒	‒	‒	Art. 3.6B
6. Prior to grouting, the following shall be verified to ensure compliance:
a. Grout space is clean.	‒	X	‒	‒	Art. 3.2D
b. Placement of reinforcement and connectors, and prestressing tendons and anchorages.	‒	X	‒	Sec. 1.13	Art. 3.4
c. Proportions of site-prepared grout and prestressing grout for bonded tendons.	‒	X	‒	‒	Art. 2.6B
d. Construction of mortar joints.	‒	X	‒	‒	Art. 3.3B
7. Grout placement shall be verified to ensure compliance:	X	‒	‒	‒	Art. 3.5
a. Grouting of prestressing bonded tendons.	X	‒	‒	‒	Art. 3.6C
8. Preparation of any required grout specimens, mortar specimens and/or prisms shall be observed.	‒	X	Sec. 2105.2.2, 2105.3	‒	Art. 1.4

For SI: °C = [(°F) - 32]/1.8.

a. The specific standards referenced are those listed in Chapter 35.

The minimum special inspection program for structures classified as structural occupancy categories I, II, or III, in accordance with Table 1604.5, which are three stories or less in height, shall comply with Table 1704.5.1.

The minimum special inspection program for masonry designed by Section 2107 or 2108, or by chapters other than Chapters 5, 6 or 7 of TMS 402/ACI 530/ASCE 5, in structures classified as structural occupancy category IV, in accordance with Table 1604.5, and masonry in buildings more than three stories in height, shall comply with Table 1704.5.3.

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 m²) shall be permitted to be subject to level 1 special inspection in accordance with Table 1704.5.1 when specifically identified as such on the approved construction documents by the registered design professional of record.

TABLE 1704.5.3 LEVEL 2 REQUIRED VERIFICATION AND INSPECTION OF MASONRY CONSTRUCTION

VERIFICATION AND INSPECTION	CONTINUOUS	PERIODIC	REFERENCE FOR CRITERIA
			BC Section	TMS 402/ACI 530/ASCE 5a	TMS 602/ACI 530.1/ASCE 6a
1. Compliance with required inspection provisions of the construction documents and the approved submittals.	‒	X	‒	‒	Art. 1.5
2. Verification of f'm and f'AAC prior to construction and for every 5,000 square feet during construction.	‒	X	‒	‒	Art. 1.4B
3. Verification of proportions of materials in premixed or preblended mortar and grout as delivered to the site.	‒	X	‒	‒	Art. 1.5B
4. Verification of slump flow and VSI as delivered to the site for self-consolidating grout.	X	‒	‒	‒	Art. 1.5B.1.b.3
5. The following shall be verified to ensure compliance:
a. Proportions of site-prepared mortar, grout and prestressing grout for bonded tendons.	‒	X	‒	‒	Art. 2.6A
b. Placement of masonry units and construction of mortar joints.	‒	X	‒	‒	Art. 3.3B
c. Placement of reinforcement, connectors and prestressing tendons and anchorages.	‒	X	‒	Sec. 1.15	Art. 3.4, 3.6A
d. Grout space prior to grout.	X	‒	‒	‒	Art. 3.2D
e. Placement of grout.	X	‒	‒	‒	Art. 3.5
f. Placement of prestressing grout.	X	‒	‒	‒	Art. 3.6C
g. Size and location of structural elements.	‒	X	‒	‒	Art. 3.3F
h. Type, size and location of anchors, including other details of anchorage of masonry to structural members, frames or other construction.	X	‒	‒	Sec. 1.2.2(e), 1.16.1	‒
i. Specified size, grade and type of reinforcement, anchor bolts, prestressing tendons and anchorages.	‒	X	‒	Sec. 1.15	Art. 2.4, 3.4
j. Welding of reinforcing bars.	X	‒	‒	Sec. 2.1.9.7.2, 3.3.3.4(b)	‒
k. Preparation, construction and protection of masonry during cold weather (temperature below 40°F) or hot weather (temperature above 90°F).	‒	X	Sec. 2104.3, 2104.4	‒	Art. 1.8C, 1.8D
l. Application and measurement of prestressing force.	X	‒	‒	‒	Art. 3.6B
6. Preparation of any required grout specimens and/or prisms shall be observed.	X	‒	Sec. 2105.2.2, 2105.3	‒	Art. 1.4

For SI: °C = [(°F) - 32]/1.8, 1 square foot = 0.0929m2.

a. The specific standards referenced are those listed in Chapter 35.