Design spectra for vertical earthquake action in the new version of guidelines for seismic design of highway bridges of China

摘要

The design spectra for vertical earthquake action in the new version of guidelines for seismic design of highway bridges of China is presented in this paper. The spectra are stipulated with the same formula, same figure as the horizontal one, but different parameters in another parallel table. The parameters are generalized from the vertical mean spectra and the comparison of vertical with horizontal mean spectra those are calculated from 4435 sets of ground motion data of NGA-west2 database.