Vibration Mechanisms and Controls of Long-Span Bridges: A Review

Fujino, Yozo; Siringoringo, Dionysius M.

doi:10.2749/101686613x13439149156886

Cited by 135 publications

(39 citation statements)

References 113 publications

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“…The occurrences of rain-and-wind induced vibration were observed in many long-span cable-stayed bridges such as Tempozan and Aratsu Bridge (Yoshimura et al 1995) in Japan and many more around the world (see list of complete observation in Fujino and Siringoringo 2013). The vibration has a practical consequence that is fatigue of the cable and damage to the cable anchorage.…”

Section: Monitoring During Extreme Wind Eventsmentioning

confidence: 99%

Japan's experience on long-span bridges monitoring

Fujino¹,

Siringoringo²,

Abé³

2016

Structural Monitoring and Maintenance

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This paper provides an overview on development of long-span bridges monitoring in Japan, with emphasis on monitoring strategies, types of monitoring system, and effective utilization of monitoring data. Because of severe environment condition such as high seismic activity and strong wind, bridge monitoring systems in Japan historically put more emphasis on structural evaluation against extreme events. Monitoring data were used to verify design assumptions, update specifications, and facilitate the efficacy of vibration control system. These were among the first objectives of instrumentation of long-span bridges in a framework of monitoring system in Japan. Later, monitoring systems were also utilized to evaluate structural performance under various environment and loading conditions, and to detect the possible structural deterioration over the age of structures. Monitoring systems are also employed as the basis of investigation and decision making for structural repair and/or retrofit when required. More recent interest has been to further extend application of monitoring to facilitate operation and maintenance, through rationalization of risk and asset management by utilizing monitoring data. The paper describes strategies and several examples of monitoring system and lessons learned from structural monitoring of long-span bridges in Japan.

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Section: Monitoring During Extreme Wind Eventsmentioning

confidence: 99%

Japan's experience on long-span bridges monitoring

Fujino¹,

Siringoringo²,

Abé³

2016

Structural Monitoring and Maintenance

Self Cite

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“…Long-span bridges, which are capable of crossing large valleys and rivers and possess aesthetic values, have been increasingly used with the development of construction technology and building materials [4,5]. In the seismic analysis of long-span bridges, it is reasonable and necessary to consider the variation of the earthquake excitations under different supports, due to long distance and soil condition change between supports [6,7].…”

Section: Introductionmentioning

confidence: 99%

Running safety assessment of a train traversing a three-tower cable-stayed bridge under spatially varying ground motion

et al. 2020

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To explore the influence of spatially varying ground motion on the dynamic behavior of a train passing through a three-tower cable-stayed bridge, a 3D traintrack-bridge coupled model is established for accurately simulating the train-bridge interaction under earthquake excitation, which is made up of a vehicle model built by multi-body dynamics, a track-bridge finite element model, and a 3D rolling wheel-rail contact model. A conditional simulation method, which takes into consideration the wave passage effect, incoherence effect, and site-response effect, is adopted to simulate the spatially varying ground motion under different soil conditions. The multi-time-step method previously proposed by the authors is also adopted to improve computational efficiency. The dynamic responses of the train running on a three-tower cablestayed bridge are calculated with differing earthquake excitations and train speeds. The results indicate that (1) the earthquake excitation significantly increases the responses of the train-bridge system, but at a design speed, all the running safety indices meet the code requirements; (2) the incoherence and site-response effects should also be considered in the seismic analysis for long-span bridges though there is no fixed pattern for determining their influences; (3) different train speeds that vary the vibration characteristics of the train-bridge system affect the vibration frequencies of the car body and bridge. Keywords Earthquake Á Spatially varying ground motion Á Long-span bridges Á Nonlinear wheel-rail contact Á Running safety

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“…Since the components are usually made of steel, they are prone to various harmful vibration for its light weight and small damping ratio. Hence, the damage to components may be caused in a short time, affecting the service life of bridges and even endangering the safety of the whole bridge [1,2].…”

Section: Introductionmentioning

confidence: 99%

Stress analysis of rigid hanger of railway arch bridge based on vehicle-bridge coupling vibration

Xu¹,

Zheng²,

Zhou³

et al. 2020

J. vibroeng.

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In order to study the stress of two new types of rigid hangers (circular steel and flat-plate rigid hangers) on the railway arch bridges, a finite element model of a railway through arch bridge was established. The influences of different types and sizes of hangers on the dynamic characteristics of the bridge were compared. Based on the established vehicle-bridge coupling vibration model, the influences of circular steel and flat-plate hanger sizes on the stress amplitude of hanger were discussed when the train passes through the bridge. The results show that when the flexible hanger of arch bridge was replaced by the rigid hanger, the symmetrical vertical bending frequency of bridge significantly increased. With the change of the size of flat-plate hanger, the torsional mode of the bridge was doped with the local vibration of the flat-plate hanger. With the increase of circular steel hanger diameter, the maximum stress amplitude of the hanger decreases as a whole. As for the flat-plate hanger, when the long side size is the same, the maximum stress amplitude of the hanger decreases with the increase of the short side size. When the short side size is the same, with the increase of the long side size , the maximum stress amplitude of the shorter hanger decreases, and the maximum stress amplitude of the longer hanger increases. When the size of the flat-plate hanger is too small or too large, the maximum stress amplitude is large.

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Vibration Mechanisms and Controls of Long-Span Bridges: A Review

Cited by 135 publications

References 113 publications

Japan's experience on long-span bridges monitoring

Japan's experience on long-span bridges monitoring

Running safety assessment of a train traversing a three-tower cable-stayed bridge under spatially varying ground motion

Stress analysis of rigid hanger of railway arch bridge based on vehicle-bridge coupling vibration

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