A methodology for the preliminary assessment of existing railway bridges for high-speed traffic

被引：22
|
作者：
Johansson, C. [1 ]
Ni Nuallain, N. A. [1 ]
Pacoste, C. [1 ]
Andersson, A. [1 ]
机构：
[1] KTH Royal Inst Technol, Div Struct Engn & Bridges, S-10044 Stockholm, Sweden
来源：
ENGINEERING STRUCTURES | 2014年 / 58卷
关键词：
Dynamic; Vibration; Railway bridge; High-speed train; Assessment; Bridge network; TRAINS; RESONANCE; BEAM;
D O I：
10.1016/j.engstruct.2013.10.011
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The Swedish government is considering upgrading the train speed along three railway lines in the Southern part of Sweden from 200 km/h to 250 km/h. According to the current design code, this requires that the bridges be examined with dynamic simulations to avoid excessive vibrations. This paper employs a method that can be used at an early stage to estimate the expected cost of upgrading a bridge network. The results revealed that 70% of the plate/beam bridges, 64% of the closed slab-frame bridges, and 41% of the open slab-frame bridges are expected to not fulfill the requirement on the maximum bridge deck acceleration for ballasted tracks. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：25 / 35
页数：11
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