京津城际铁路是我国第一条建成运营的时速350 km客运专线。设计中贯彻桥梁建设新理念，确保高速条件下列车的安全性、舒适性和稳定性要求，并遵循环境适应性、服务运输和综合效益的设计理念。全线采用长桥方案，桥上采用最先进的无砟轨道技术，桥梁占线路长度的87.7 ％，京津城际铁路桥梁设计、建造的成功，为今后大规模高速铁路建设积累了宝贵的经验，起到了示范性、标志性、样板性工程的作用。

Beijing-Tianjin inter-city railway is the first built passenger dedicated line with the speed of 350 km/h in our country. During the design, new ideas of bridge construction were carried out in order to ensure the safety, amenity and stability requirements of the train under high-speed condition. At the same time, concepts of environmental adaptability, serving for transportation and comprehensive benefits were followed. In the whole line of the railway, long-bridge scheme was adopted, and the most advanced technology of unballasted track was utilized in bridges which account for 87.7 % of the total line. The success of the design and construction of bridges in Beijing-Tianjin inter-city railway accumulated valuable experiences for large-scale construction of high-speed railway at the future. And roles of demonstration, landmark and prototype are played at the same time.