摘要
海外重载铁路通常具有速度低、站线长、服役年限短、桥梁分散且长度短等特点,桥梁设计可以结合其特点量体裁衣进行定制,包括设计活载、截面选型、简化设计等适应性研究。通过选择合适的车辆活载及发展系数确定桥梁的作用,并对我国既有标准梁的适应性进行分析和简化改进,探索出在海外重载铁路桥梁设计研究方面的一些思路,增强设计的针对性和有效性。
Heavy haul railway in overseas generally possesses the characteristics of low speed, long route and station interval, limited service life, dispersive and short length bridge. The design of bridge should combine with these mentioned characteristics and act according to actual circumstances, including adaptability study with live load, sectional selection and simplified design. Bridge action can be determined by means of appropriate vehicle live load and development factor, in addition, analysis of adaptability and simplification of existing standard beam also assist to explore some ideas on design of heavy haul railway bridge in overseas. These aspects can improve pertinence and effectiveness of design.
作者
冯印
Feng Yin(China RaiJway SJyuan Survey and Design Group Co.Ltd.,Wuhan Hubei 430063,China)
出处
《铁道建筑技术》
2018年第9期24-26,57,共4页
Railway Construction Technology
基金
中铁第四勘察设计院集团有限公司科技研究开发计划项目(2012K11)
关键词
重载铁路
车辆活载
简化设计
适应性研究
heavy haul railway
vehicle live load
simplified design
adaptability study
