General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Scope
This specification is applicable to lines with fortification intensity of 6 degrees, 7 degrees, 8 degrees, 9 degrees, regional high-speed railways, passenger dedicated lines (including intercity railways) and newly built and reconstructed standard gauge passenger and freight co-line I and II railway projects Seismic design of roadbeds, bridges, tunnels and other projects. For areas with a fortification intensity greater than 9 degrees or for projects and new structures with special seismic requirements, special research should be done on their seismic design.