Design of metal limit damping device and analysis of mechanical properties for long span railway bridge

被引：0
|
作者：
Dong J. [1 ]
Zeng Y. [1 ]
Chen K. [1 ]
Song S. [1 ]
Pang L. [1 ]
Zou Y. [2 ]
Zhang Y. [3 ]
机构：
[1] China Railway Eryuan Engineering Group Co. Ltd., Chengdu
[2] Chengdu Xetong Technology Co. Ltd., Chengdu
[3] School of Civil Engineering, Central South University, Changsha
来源：
Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology | 2020年 / 52卷 / 03期
关键词：
Bridge engineering; Finite element method; Half-through arch bridge; Limit damping device; Mechanical property;
D O I：
10.11918/201903192
中图分类号：
学科分类号：
摘要：
To investigate metal limit damping device suitable for long-span railway bridges, formulas for calculating the mechanical properties of a metal limit damping device were established, and a simplified design method for the device was proposed. Meanwhile, the device design analysis software was developed with the combination of related design codes and the simplified design method. By taking a typical half-through arch bridge in Zhengzhou-Wanzhou high speed railway in China as the research object, the design parameters of the bridge limit damping device and three connection structural schemes were proposed. The proposed formulas were used to calculate the mechanical properties of the device, the solid finite element model of the device was established, and the influence on the seismic performance of the bridge was analyzed. Results show that the proposed design method of metal limit damping device had strong adaptability and high calculation precision, which met the accuracy requirement of engineering applications. The device could fulfill the driving comfort and safety demands of high speed railway bridges with good effects of seismicity mitigation and energy dissipation, and it reduced the displacement of the beam end for the long-span bridge by about 20%. © 2020, Editorial Board of Journal of Harbin Institute of Technology. All right reserved.
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页码：136 / 146
页数：10
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