山区增建二线铁路桥式方案比选  

Comparison of Railway Bridge Type Schemes for Adding Second Line in Mountainous Area

作　　者：张伟斌 ZHANG Wei-bin(China Railway Engineering Design Consulting Group Co.Ltd.,Beijing 100055,China)

机构地区：[1]中铁工程设计咨询集团有限公司,北京100055

出　　处：《工程建设与设计》2024年第11期73-76,共4页Construction & Design for Engineering

摘　　要：以山区某地方重载铁路增建二线工程为例,选取一处代表性的桥梁工点,分别采用1×32 m简支T梁+1×(32+48+32)m连续梁、1×(64+64)m T构2个桥式方案,通过综合分析对既有线的影响、水文条件、工程经济性、施工组织、景观要求等因素,选择采用1×(64+64)m T构的桥式方案。This article takes the adding second line project of a heavy haul railway in a mountainous area as an example,selects a representative bridge construction site,and adopts two bridge type schemes:1×32 m simply supported T-beam+1×(32+48+32)m continuous beam and 1×(64+64)m T-structure.Through comprehensive analysis of factors such as the impact on the existing line,hydrological conditions,engineering economy,construction organization,and landscape requirements,the 1×(64+64)m T-structure bridge type scheme is selected.

关 键 词：增建二线铁路 桥式方案比选 既有线 山区 

分 类 号：U448.13[建筑科学—桥梁与隧道工程]