高速铁路5m高声屏障简支箱梁结构设计研究
Research on the Structural Design of Simply-supported Box Girder for 5-meter-high Sound Barrier in High-speed Railway
陈偲鹏1
作者信息
- 1. 广东省铁路规划设计研究院有限公司,广东 广州 510000
- 折叠
摘要
铁路桥梁通用参考图一般按常规高度声屏障设计,往往无法适用环保要求采用非标准高度声屏障的情况.文章以高速铁路 32 m标准双线简支箱梁为依托,对 5 m高声屏障箱梁进行结构设计研究.通过有限元计算得出,桥面板受集中力矩作用时,采用实体模型分析能较好地模拟应力分布.对于桥上设置 5 m高声屏障简支箱梁,适当加强翼缘钢筋可满足结构设计要求.
Abstract
The general reference diagram of railway bridge is generally designed based on the sound barrier with conventional height,which is often unable to apply to the case of non-standard height sound barrier required by environmental protection.Based on the 32 meter standard double-line simply-supported box girder in high-speed railway,this paper studies the structural design of 5-meter-high sound barrier box girder.Through the finite element calculation,it is concluded that when the bridge deck is subjected to concentrated torque,using solid model for analysis can better simulate the stress distribution.For the setting of 5-meter-high sound barrier simply-supported box girder on the bridge,the appropriate reinforcement of the flange steel bar can meet the structural design requirements.
关键词
5m高声屏障/简支箱梁/实体模型/结构设计Key words
5-meter-high sound barrier/simply-supported box girder/physical model/structural design引用本文复制引用
出版年
2024
NETL
NSTL
万方数据