RM Bridge Advanced Wizard Help

Earthquake Page

SettingDescription
Acceleration coefficient According to AASHTO 3.10.4-1 it has different values depending on the Seismic Zones, maximum allowed value is 0.80.
Damping The use of 5% damping is considered as a reasonable representation of real structural behavior.
Vertical Earthquake If yes is selected the vertical ground motion during earthquake is applied.
Factor Vertical earthquake factor.

The drawing shows the elastic seismic response coefficient normalized using the input ground acceleration A and the result plotted against the period of vibration. It is given for different soil profiles, based on 5 % damping.