时速160 km城际铁路简支T梁设计研究

摘要

Simply supported T beam is widely used in mixed passenger and freight traffic. Its application to the inter-city railway bridges should meet the requirements for environment, appearance and space. The design optimizes T beam deck layout and structure, the sidewalk steel support employs steel and concrete composite slab structure with sound barriers, which overcome the drawbacks of conventional T-beam of insufficient integrity and maintain the advantages in economy and construction flexibility. It is of great value to be applied to inter-city railway bridges and can be referenced for the design of other railway T beams.%简支T梁在客货共线铁路中广泛应用，将其应用于城际铁路桥梁中需要其满足城际铁路在环境、外观、空间上的要求。设计优化T梁的桥面布置和梁体结构，外侧支架采用钢混凝土组合板结构，可安装声屏障。克服了常规T梁整体性不足的缺点，在经济上和施工灵活性上继续保持其一贯优势。其在城际铁路桥梁中有推广应用价值，并为其他铁路T梁设计提供借鉴。