To test the effect of noise reduction using the proposed CF-CEEMD method, a nonlinear signal with additive noise is first introduced. Then, the GNSS measured signal of a long-span arch bridge is analyzed using CF-CEEMD. Moreover, the dynamic characteristic parameters (i.e. natural frequencies...
Finally, based on the reasonable assessment index, the train running safety and passenger riding comfort of the bridge are especially studied. The applicability of long-span cable-stayed bridge for high-speed railway is investigated primarily.Structural Condition Assessment, Monitoring and ImprovementChen...
base isolated bridgestructural monitoringambient vibrationresponse recordsearthquake responseThe central zone of Chile is located in a high seismic risk area with occurrence of magnitude 7 earthquakes every 10 years and magnitude 8 events every 90 years. This paper deals with the mechanical and dynamic...
In the present study, the dynamic property of a specially shaped hybrid girder bridge with concrete-filled steel tube (CSFT) arches is investigated based on experimental and numerical methods, especially under moving vehicles. Before the inauguration of
As the suspension bridge structures become more flexible and the forms of the vehicle load become more diverse, the dynamic coupling problem of the vehicle-bridge system has become gradually prominent in long-span suspension bridges, resulting in an increase in accuracy and efficiency requirements for...
The dynamic characteristics of long-span suspension bridges are complex. The natural vibration frequency is changed with different structural parameters, and the sensitivity to different parameters is different. In order to solve this problem, the spatial model of a long-span suspension bridge was esta...
The dynamic response from passing trains at high speed is studied for a short span soil–steel composite bridge. Field measurements have been performed, comprising steel strains, vertical crown displacements and accelerations in the steel and the backfill. Soil material damping properties are estimated...
It was found that the static performances of a cable-stayed bridge with CFRP cables and steel cables are ... Xie,Xu,Li,... 被引量: 12发表: 2014年 Investigation of dynamic properties of long‐span cable‐stayed bridges based on one‐year monitoring data under normal operating condition ...
The model thus obtained can be treated as the baseline FE model and is suitable for long term monitoring and safety evaluation of the bridge in different severe circumstances such as earthquakes and wind loading. 展开 关键词: dynamic analysis concrete-filled steel tubular (CFST) arch bridge ...
Taking the long span continuous rigid-frame structure of the south bank approach spans of Wuhan Tianxingzhou Changjiang River Bridge as the research object... HE Bo,XC Guo,HP Zhu,... - 《World Bridges》 被引量: 18发表: 2006年 Influence of Pier Heights on Spatial Vibration of the Train-...