Section 1615 — California Building Code (Title 24, Part 2)

1615.1 General.¶

The design and construction of Risk Cate- gory III and IV buildings and structures located in the Tsunami Design Zones defined in the Tsunami Design Geodatabase shall be in accordance with Chapter 6 of ASCE 7, except as modified by this code.

TABLE 1613.2.5(1) SEISMIC DESIGN CATEGORY BASED ON SHORT-PERIOD (0.2 second) RESPONSE ACCELERATION

VALUE OF S DS	RISK CATEGORY
*VALUE OFSDS***	I or II	III	IV
SDS< 0.167g	A	A	A
0.167g ≤SDS < 0.33g	B	B	C
0.33g ≤SDS < 0.50g	C	C	D
0.50g ≤SDS	D	D	D

TABLE 1613.2.5(2) SEISMIC DESIGN CATEGORY BASED ON 1-SECOND PERIOD RESPONSE ACCELERATION

VALUE OF S D1	RISK CATEGORY
*VALUE OFSD1***	I or II	III	IV
SD1< 0.067g	A	A	A
0.067g ≤SD1 < 0.133g	B	B	C
0.133g ≤SD1 < 0.20g	C	C	D
0.20g ≤SD1	D	D	D

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STRUCTURAL DESIGN

FIGURE 1613.2.1(1) RISK-TARGETED MAXIMUM CONSIDERED EARTHQUAKE (MCER) GROUND MOTION RESPONSE ACCELERATIONS FOR THE

CONTERMINOUS UNITED STATES OF 0.2-SECOND SPECTRAL RESPONSE ACCELERATION (5% OF CRITICAL DAMPING)

16-38 2022 CALIFORNIA BUILDING CODE

STRUCTURAL DESIGN

RISK-TARGETED MAXIMUM CONSIDERED EARTHQUAKE (MCER) GROUND MOTION RESPONSE ACCELERATIONS FOR THE

CONTERMINOUS UNITED STATES OF 0.2-SECOND SPECTRAL RESPONSE ACCELERATION (5% OF CRITICAL DAMPING)

STRUCTURAL DESIGN

FIGURE 1613.2.1(3) RISK-TARGETED MAXIMUM CONSIDERED EARTHQUAKE (MCER) GROUND MOTION RESPONSE ACCELERATIONS FOR THE

CONTERMINOUS UNITED STATES OF 1-SECOND SPECTRAL RESPONSE ACCELERATION (5% OF CRITICAL DAMPING)

16-40 2022 CALIFORNIA BUILDING CODE

STRUCTURAL DESIGN

RISK-TARGETED MAXIMUM CONSIDERED EARTHQUAKE (MCER) GROUND MOTION RESPONSE ACCELERATIONS FOR THE

COTERMINOUS UNITED STATES OF 1-SECOND SPECTRAL RESPONSE ACCELERATION (5% OF CRITICAL DAMPING)

STRUCTURAL DESIGN

FIGURE 1613.2.1(5) RISK-TARGETED MAXIMUM CONSIDERED EARTHQUAKE (MCER) GROUND MOTION RESPONSE ACCELERATIONS

FOR HAWAII OF 0.2- AND 1-SECOND SPECTRAL RESPONSE ACCELERATION (5% OF CRITICAL DAMPING)

16-42 2022 CALIFORNIA BUILDING CODE

STRUCTURAL DESIGN

16-44 2022 CALIFORNIA BUILDING CODE

STRUCTURAL DESIGN

FIGURE 1613.2.1(8) RISK-TARGETED MAXIMUM CONSIDERED EARTHQUAKE (MCER) GROUND MOTION RESPONSE ACCELERATIONS FOR PUERTO RICO AND THE UNITED STATES VIRGIN ISLANDS OF 0.2- AND 1-SECOND SPECTRAL RESPONSE ACCELERATION

(5% OF CRITICAL DAMPING)

STRUCTURAL DESIGN

FIGURE 1613.2.1(9) RISK-TARGETED MAXIMUM CONSIDERED EARTHQUAKE (MCER) GROUND MOTION RESPONSE ACCELERATIONS FOR GUAM AND THE NORTHERN MARIANA ISLANDS OF 0.2- AND 1-SECOND SPECTRAL RESPONSE ACCELERATION

(5% OF CRITICAL DAMPING)

16-46 2022 CALIFORNIA BUILDING CODE

STRUCTURAL DESIGN

FIGURE 1613.2.1(10) RISK-TARGETED MAXIMUM CONSIDERED EARTHQUAKE (MCER) GROUND MOTION RESPONSE ACCELERATIONS

FOR AMERICAN SAMOA OF 0.2- AND 1-SECOND SPECTRAL RESPONSE ACCELERATION

(5% OF CRITICAL DAMPING)

STRUCTURAL DESIGN