High-speed Railway Train-Track-Bridge Systems: A Seismic Safety Technology Framework systematically constructs a seismic safety technology framework for high-speed railways, focusing on three key dimensions: catastrophe simulation innovation, in-depth mechanism revelation, and the implementation of prevention technologies. The book transcends the traditional limitation of modeling tracks as inertial masses by establishing, for the first time, a seismic failure model of railway tracks. For core prevention technologies, it proposes a disruptive SI (Spectral Intensity) velocity spectrum index that dynamically maps train derailment states to the responses of bridges.These results have already been applied to hundreds of bridges along the Guiyang-Guangzhou and Shanghai-Kunming high-speed railways, surviving nine strong earthquakes of magnitude 5.5 or greater. This book serves as an integrated knowledge source for both academic researchers and professional engineers: scholars will gain proficiency in the complete "experiment-simulation-mechanism" research workflow; engineers can directly leverage SI velocity spectrum design metrics embedded in industry standards, improving efficiency in seismic-region bridge design; industry leaders can adapt maglev train-bridge coupled vibration test technologies to support national maglev R&D initiatives. - Written by leading, award-winning experts in the field, this book systematically constructs a seismic safety technology framework for high-speed railways - Uniquely offers an integrated overview of seismic catastrophe simulation-mechanism-prevention - Integrates platforms such as OpenSees and SIMPACK to develop a collaborative catastrophe simulation system, thoroughly addressing physical validation challenges in high speed train operations - Serves as an integrated knowledge source for both academic researchers and professional engineers