N.Y.C. Admin. Code § BC 2102: Section BC 2102: Definitions and Notations

2102.1 General.

The following terms are defined in Chapter 2:

AAC MASONRY.

ARCHITECTURAL TERRA COTTA.

AREA.

Gross cross-sectional.

Net cross-sectional.

AUTOCLAVED AERATED CONCRETE (AAC).

BED JOINT.

BRICK.

Calcium silicate (sand lime brick).

Clay or shale.

Concrete.

CAST STONE.

CELL.

CHIMNEY.

Factory-built chimney.

Masonry chimney.

Metal chimney.

CHIMNEY TYPES.

High-heat appliance type.

Low-heat appliance type.

Medium-heat appliance type.

COLLAR JOINT.

DECORATIVE SHROUD.

DIMENSIONS.

Nominal.

Specified.

FIREPLACE.

FIREPLACE THROAT.

FLUE.

FLUE, APPLIANCE.

FLUE GASES.

FLUE LINER (LINING).

FOUNDATION PIER.

GROUT.

HEAD JOINT.

MASONRY.

Glass unit masonry.

Plain masonry.

Reinforced masonry.

Solid masonry.

Unreinforced (plain) masonry.

MASONRY UNIT.

Hollow.

Solid.

MORTAR.

MORTAR, SURFACE-BONDING.

PRESTRESSED MASONRY.

RUNNING BOND.

SPECIFIED COMPRESSIVE STRENGTH OF MASONRY, f '

m

.

STONE MASONRY.

STRENGTH.

Design strength.

Nominal strength.

Required strength.

TIE, WALL.

TILE, STRUCTURAL CLAY.

WALL.

Cavity wall.

Dry-stacked, surface-bonded walls.

Parapet wall.

WYTHE.

NOTATIONS.

d

b

= Diameter of reinforcement, inches (mm).

F

s

= Allowable tensile or compressive stress in reinforcement, psi (MPa).

f

r

= Modulus of rupture, psi (MPa).

f '

AAC

= Specified compressive strength of AAC masonry, the minimum compressive strength for a class of AAC masonry as specified in ASTM C 1386, psi (MPa).

f '

m

= Specified compressive strength of masonry at age of 28 days, psi (MPa).

f '

mi

= Specified compressive strength of masonry at the time of prestress transfer, psi (MPa).

K

= The lesser of the masonry cover, clear spacing between adjacent reinforcement, or five times d

b

, inches (mm).

L

s

= Distance between supports, inches (mm).

l

d

= Required development length or lap length of reinforcement, inches (mm).

P

= The applied load at failure, pounds (N).

S

t

= Thickness of the test specimen measured parallel to the direction of load, inches (mm).

S

w

= Width of the test specimen measured parallel to the loading cylinder, inches (mm).