Shaking table test of a high-speed railway bridge with a new isolation system

2019 ◽  
Vol 196 ◽  
pp. 109315 ◽  
Author(s):  
Shuang Zou ◽  
Heisha Wenliuhan ◽  
Fulin Zhou
Keyword(s):  
High Speed ◽  
Shaking Table Test ◽  
Shaking Table ◽  
Railway Bridge ◽  
High Speed Railway ◽  
Isolation System

scholarly journals Earthquake Influence on the Rail Irregularity on High-Speed Railway Bridge

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Zhipeng Lai ◽  
Xin Kang ◽  
Lizhong Jiang ◽  
Wangbao Zhou ◽  
Yulin Feng ◽  
...  
Keyword(s):  
High Speed ◽  
Shaking Table Test ◽  
Element Model ◽  
Shaking Table ◽  
Railway Bridge ◽  
Earthquake Intensity ◽  
High Speed Railway ◽  
Coupling Vibration ◽  
Rail Irregularity ◽  
Rail Irregularities

Rail irregularity is the leading cause of enhancing train-track coupling vibration and, therefore, should be studied in detail for safety requirements. In this study, the differences between existing rail irregularities without being subjected to an earthquake between different countries were first studied. Results show that existing power spectrum density and time-domain displacement samples of rail irregularities in the American code are the largest, while the irregularities of the Germany railway are higher than those of China in a specific range of rail wavelengths. Afterward, the effects of earthquake intensity, soil site, and duration on the rail irregularity of a Chinese typical high-speed railway bridge were investigated. For this purpose, a finite element model was established and validated by the shaking table test of a 1/12-scaled high-speed railway bridge experimental specimen. The calculation results indicated that the influences of earthquakes on the rail alignment irregularity were evident.

Shaking table test of a novel railway bridge pier with replaceable components

2021 ◽  
Vol 232 ◽  
pp. 111808
Author(s):  
Xiushen Xia ◽  
Xiyin Zhang ◽  
Jinbo Wang
Keyword(s):  
Shaking Table Test ◽  
Bridge Pier ◽  
Shaking Table ◽  
Railway Bridge

Model test of the group piles foundation of a high-speed railway bridge in mined-out area

2016 ◽  
Vol 10 (4) ◽  
pp. 488-498 ◽  
Author(s):  
Xin Liang ◽  
Qian-gong Cheng ◽  
Jiu-jiang Wu ◽  
Jian-ming Chen
Keyword(s):  
Model Test ◽  
High Speed ◽  
Railway Bridge ◽  
High Speed Railway ◽  
Group Piles

Shaking Table Test Study on Mid-Story Isolation Structures

2012 ◽  
Vol 446-449 ◽  
pp. 378-381
Author(s):  
Jian Min Jin ◽  
Ping Tan ◽  
Fu Lin Zhou ◽  
Yu Hong Ma ◽  
Chao Yong Shen
Keyword(s):  
Seismic Response ◽  
Seismic Isolation ◽  
Shaking Table Test ◽  
Base Isolation ◽  
Shaking Table ◽  
Natural Period ◽  
Isolation System ◽  
Isolation Layer ◽  
Lead Rubber Bearing ◽  
Complex Structural

Mid-story isolation structure is developing from base isolation structures. As a complex structural system, the work mechanism of base isolation structure is not entirely appropriate for mid-story isolation structure, and the prolonging of structural natural period may not be able to decrease the seismic response of substructure and superstructure simultaneously. In this paper, for a four-story steel frame model, whose prototype first natural period is about 1s without seismic isolation design, the seismic responses and isolation effectiveness of mid-story isolation system with lead rubber bearing are studied experimentally by changing the location of isolation layer. Respectively, the locations of isolation layer are set at bottom of the first story, top of the first story, top of the second story and top of the third story. The results show that mid-story isolation can reduce seismic response in general, and substructure acceleration may be amplified.

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