Components | Uniform Building Code References | 1997 Edition

Note: Highlights of referenced sections are noted in parentheses.

SECTION 2101 - GENERAL

2101.3 Definitions.
GROUTED MASONRY: Grouted Multiwythe Masonry
(space between wythes is solidly grouted)
WALLS: Bonded Wall
(two or more wythes bonded together to act as a structural unit)

SECTION 2102 - MATERIAL STANDARDS

2102.2 Standards of Quality.
5. Masonry units of concrete.

5.1 UBC Standard 21-3, Concrete Building Brick [or]
5.2 UBC Standard 21-4, Hollow and Solid Load-bearing Concrete Masonry Units

7. Connectors.
7.1 (steel wire conforming to UBC 21-10, Part II)

SECTION 2104 - CONSTRUCTION

2104.4 Placing Masonry Units.

2104.4.3 Solid masonry units.
(full head and bed joints)

2104.6 Grouted Masonry.

2104.6.1 General Conditions.
(elements act together structurally; grouting considerations; size and height limitations of grout space not less than in Table 21-C; cleanouts, when required, at every vertical bar, but not more than 32 inches o.c.; units may be laid to full height of pour, grout placed in continuous pour in lifts not exceeding 6 feet)

2104.6.2 Construction Requirements.
(reinforcement placed prior to grouting; avoid segregation of grout and damage to masonry; consolidate and reconsolidate grout; vertical barriers shall be built across grout space, at 30 feet maximum, with section between barriers grouted in one day)

SECTION 2106 - GENERAL DESIGN REQUIREMENTS

2106.1.5 Multiwythe walls.

2106.1.5.1 General.
(wythes bonded by grout)

2106.1.5.3 Wall ties for grouted multiwythe construction.
(two wythes bonded together with at least one 3/16 inch diameter wall tie for each 2 square feet of wall area)

2106.1.12 Special provisions in areas of seismic risk.

2106.1.12.4 Special provisions for Seismic Zones 3 and 4.

2. Shear Walls

2.2 Bond.
(multiwythe grouted masonry shear walls designed considering adhesion bond strength between grout and masonry units)

2106.2 Working Stress Design and Strength Design Requirements for...Reinforced Masonry.

2106.2.2 Specified compressive strength of masonry.
(based on the value of f'm; verified in accordance with Section 2105.3, based on 28-day unless otherwise specified)

2106.2.3 Effective thickness.

2106.2.3.2 Multiwythe walls.
(effective thickness is specified thickness when space between wythes is filled with grout)

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