The map spectral response acceleration parameters are determined by the map spectral response accelerations for 5% damping ratio. They are defined as dimensionless coefficients divided by the acceleration of gravity.

from the mapped values of S S and S 1. The parameters S DS and S D1 are used to calculate the design response spectrum in Section 11.4.5 and the design base shear in Section 12.8. The easiest and most accurate way to obtain the spectral …

2019年10月26日 · MCER 是满足 50 年倒塌概率 1%风险目标的最大考虑地震，它的确定综合了概率地震危险性曲线与地震作用下结构倒 塌率的不确定性分布（Luco 等，2007 ）。

The MCER spectral response acceleration parameters for short periods, SMS, and at 1-second period, SM1, adjusted for site class effects shall ...

2024年6月26日 · The MCER ground motions are also in the 2013 ASCE/SEI 41 Standard and the 2012 and 2015 editions of the International Building Code. The MCER, MCEG, and TL maps are derived from the U.S. Geological Survey (USGS) National Seismic Hazard Models and are provided in this data release in portable document format (PDF) and Geographic Information ...

The mapped maximum considered earthquake spectral response acceleration at short periods (S s) shall be 0.296 g and at 1-s period (S 1) shall be 0.061 g. The mapped long-period transition period (T L ) shall be 6.0 seconds.

Horizontal Design Response Spectrum is used to consider earthquake effects that results in the largest maximum response to horizontal ground motions. A standard response spectrum curve defined in seismic codes is defined as follows.

RISK-TARGETED MAXIMUM CONSIDERED EARTHQUAKE (MCE R) GROUND MOTION RESPONSE ACCELERATIONS FOR AMERICAN SAMOA OF 0.2- AND 1-SECOND SPECTRAL RESPONSE ACCELERATION (5% OF CRITICAL DAMPING) Explore a searchable database of US construction and building code. Code regulations are …

Indonesia has followed development of new seismic design criteria in the new seismic building codes, from hazard-based in the former SNI-03-1726-2002 to the current risk-based SNI-1726-2012. The...

Map spectral response acceleration parameters are converted automatically to spectral response acceleration parameters specified in Codes. International Design Codes. ASCE 7-16: Reduced Design Acceleration Spectrum for Modal Analysis. TSC 2018: Design Spectrum Reduced by Response Modification (4.4.1) Notation in ACSE.