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Earlier editions: 20222019

Chapter 16 — STRUCTURAL DESIGN

1602 Notations — 2025 California Building Code

California Building Code (Title 24, Part 2) · 2025 edition · updated 2026-09-25 · California

CBSC: official editions, supplements and errata

Italicized text is a California amendment to the model code, as printed in the official publication.

Cite as: 2025 California Building Code (Title 24, Part 2) § 1602 · Effective January 1, 2026 · Official source: Building Standards Commission

1602.1 Notations.

The following notations are used in this chapter:

D = Dead load.

D i = Weight of ice in accordance with Chapter 10 of ASCE 7.

E = Combined effect of horizontal and vertical earthquake induced forces as defined in Section 12.4 of ASCE 7.

F = Load due to fluids with well-defined pressures and maximum heights.

F a = Flood load in accordance with Chapter 5 of ASCE 7.

H = Load due to lateral earth pressures, ground water pressure or pressure of bulk materials.

L = Live load.

L r = Roof live load. p g(asd) = Allowable stress design ground snow load. p g = Ground snow load determined from Figures 1608.2(1) through 1608.2(4) and Table 1608.2.

STRUCTURAL DESIGN

R = Rain load.

S = Snow load.

T = Cumulative effects of self-straining load forces and effects.

V asd = Allowable stress design wind speed, mph (m/s) where applicable.

V = Basic wind speed, V, mph (m/s) determined from Figures 1609.3(1) through 1609.3(4) or ASCE 7.

V T = Tornado speed, mph (m/s) determined from Chapter 32 of ASCE 7.

W = Load due to wind pressure.

W i = Wind-on-ice in accordance with Chapter 10 of ASCE 7.

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