大跨度钢桥轨道设计方案的研究  

Research on Track Design Plan for Long Span Steel Bridge

作　　者：高增增[1] 

机构地区：[1]铁道第三勘察设计院集团有限公司,天津300142

出　　处：《铁道建筑》2016年第4期111-113,共3页Railway Engineering

摘　　要：大跨度钢桥与混凝土桥相比对轨道结构要求较高,轨道结构形式可采用碎石道床、板式无砟轨道、木枕等,这几种轨道结构形式各有优缺点。合成板式轨道是一种新型轨道结构,具有结构强度高、弹性好,能减轻振动和噪声,生产、施工容易等特点,在大跨度钢桥上应用优势明显。本文对既有钢桥的几种轨道结构与合成板式轨道的优缺点作了阐述,提出了合成轨道板的设计方案。Compared with concrete bridge,long span steel bridge has higher requirement for track structure. Track structure may adopt ballast bed,slab ballastless track or wood sleeper. T hese track structures have their own advantage and disadvantages. As a new type of track structure,composite slab track outweighs other types when being applied to long span bridge,due to its high structural strength and elasticity. Also,it may reduce vibration and noise,and is easier for produce and construction. In this paper,advantages and disadvantages of existed track structures were introduced. The design of composite track slab was proposed.

关 键 词：钢桥 无砟轨道 合成板式轨道 构造方案 应力计算 

分 类 号：U443.312[建筑科学—桥梁与隧道工程]