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// CODE SNIPPET

1813.2.1 Peak Ground Acceleration

NYC Building Code 2014 > 18 Soils and Foundations > 1813 Liquefaction Analysis > 1813.2 Site-Specific Analyses > 1813.2.1 Peak Ground Acceleration
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Peak ground acceleration shall be determined based on either (1) a site-specific study taking into account soil amplification effects as specified in Section 11.4.7 of ASCE 7-10 or (2) the Maximum Considered Geometric Mean peak ground acceleration adjusted for Site Class effects PGAM as provided in Table 1813.2.1 without adjustment for targeted risk.

TABLE 1813.2.1 VALUES OF MAXIMUM CONSIDERED EARTHQUAKE GEOMETRIC MEAN (MCEG) PEAK GROUND ACCELERATIONS ADJUSTED FOR SITE CLASS EFFECTS, PGAM

SITE CLASS PGAM(g)
A 0.14
B 0.17
C 0.20
D 0.24
E 0.33

Related Code Sections


1813.2.1 Soils and Foundations, Peak Ground Acceleration
Peak ground acceleration shall be determined based on either (1) a site-specific study taking into account soil amplification effects as specified ...
NYC Building Code 2014 > 18 Soils and Foundations > 1813 Liquefaction Analysis > 1813.2 Site-Specific Analyses > 1813.2.1 Peak Ground Acceleration
1816.2.1 Soils and Foundations, Peak Ground Acceleration
Peak ground acceleration shall be determined based on either (i) a site-specific study taking into account soil amplification effects as specified ...
NYC Building Code 2022 > 18 Soils and Foundations > 1816 Liquefaction Analysis > 1816.2 Site-Specific Analyses > 1816.2.1 Peak Ground Acceleration
1803.2.2 Soils and Foundations, Seismic Design Category D
supporting more than 6 feet (1828.8 mm) of in situ soil or backfill height due to design earthquake ground motions. Peak ground acceleration for use ...
NYC Building Code 2022 > 18 Soils and Foundations > 1803 Geotechnical Investigations and Material Classifications > 1803.2 Where Required > 1803.2.2 Seismic Design Category D
1802.2.3 Soils and Foundations, Seismic Design Category D
1813.2, 1813.3, and 1813.4. Site specific response shall be evaluated for site peak ground acceleration magnitudes and source characteristics consistent ...
NYC Building Code 2008 > 18 Soils and Foundations > 1802 Foundation and Soils Investigations > 1802.2 Where Required > 1802.2.3 Seismic Design Category D
1613.2 Structural Design, Definitions
CONSIDERED EARTHQUAKE GEOMETRIC MEAN (MCE G ) PEAK GROUND ACCELERATION.  MECHANICAL SYSTEMS. ORTHOGONAL. RISK-TARGETED MAXIMUM CONSIDERED ...
NYC Building Code 2022 > 16 Structural Design > 1613 Earthquake Loads > 1613.2 Definitions
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