Road vehicle-induced vibration control of microelectronics facilities

Guo, Anxin; Xu, You‐Lin; Li, Hui

doi:10.1007/s11803-005-0032-9

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…In order to improve the traditional design method, seismic isolation design method is carried out, which relies on the ductility of the isolation devices to absorb or reduce the earthquake energy transmitted to the structure. Hence, passive control technology [1][2], active control technology [3] and semi-active control technology [4][5][6][7] are commonly used in high-way bridges currently. These technologies not only improve the performance but also decrease the cost of the construction.…”

Section: Introductionmentioning

confidence: 99%

Shaking Table Test on Seismic Response of Isolated Bridge

Yan

Wang

2013

AMM

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In order to investigate isolation effectiveness on seismic performance of the continuous rigid frame bridge, shaking table test with nine sub-tables on 1/10 scaled reinforced concrete rigid frame bridge specimen was performed. The experimental results demonstrate that isolation devices provide flexibility to transform natural period of the scaled model, and additional it can improve the ability of energy dissipation when lead is used. The initial first frequency is 8.17Hz for plate-type rubber bearing and 9.12Hz for leading rubber bearing. The plate rubber bearing and lead-rubber bearing are quite sensitive to seismic wave frequency. The use of various isolation devices affects response of the bridge model. The results show that the more difference in the isolation devices, the more difference in response. Moreover, isolation effect of lead-rubber bearing show obviously more advantage than the one of plate-type rubber bearing, especially in controlling responses of the bridge during major earthquakes.

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Section: Introductionmentioning

confidence: 99%

Shaking Table Test on Seismic Response of Isolated Bridge

Yan

Wang

2013

AMM

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“…The allowable disturbances required for high-tech facilities are beyond what are normally required for typical engineering structures, for example, disturbances of vibrations, airborne particles, etc. In particular, manmade vibrations caused by human activities (i.e., road and railway traffic, construction activities) should be controlled at low levels over long periods of time for adjacent high-tech facilities in which vibration-sensitive equipment and instruments are housed (Guo et al, 2005; Gordon, 1992; Amick and Gendreau, 2000). Achieving vibration stability of a high-tech facility requires effective measures for reducing unwanted vibrations.…”

Section: Introductionmentioning

confidence: 99%

In situ experimental study of vibration reduction using thick concrete slabs with natural and cement-improved subgrade

Xu¹,

Lou²,

Chen³

2023

Journal of Vibration and Control

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Thickening the foundation slab and improving the subgrade soil using geo-techniques are effective measures for controlling unwanted vibrations at high-tech facilities. In this study, the vibration-reduction performance of 1-m-thick concrete slabs with natural and cement-improved subgrades was investigated based on in situ frequency sweep tests. One 1-m-thick concrete slab rested on 1-m-thick compacted sandy gravel backfill atop an undisturbed subgrade was constructed on the north side of the experimental site, and another identical concrete slab rested on 1-m-thick compacted sandy gravel backfill atop a cement-improved subgrade was constructed on the south side. The vibration-reduction effect was evaluated by comparing the free-field ground vibrations and surface vibrations of the two slabs at three pairs of evaluation locations. In terms of peak velocity, the 1-m-thick concrete slab with the natural subgrade exhibited a slight vibration amplification effect at low frequencies and a significant reduction effect at middle and high frequencies; the 1-m-thick concrete slab with the cement-improved subgrade exhibited a continuous vibration reduction action at all frequencies. In terms of RMS velocity, the vibration-reduction performance of the 1-m-thick concrete slab with the cement-improved subgrade was better than that with the natural subgrade. The results demonstrated that the vibration-reduction effect of the thick concrete slab was significant and could be increased by improving the subgrade using the cement grouting method.

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“…Actuators which use shape memory effects (SME) of SMAs are capable of replacing complex and heavyweight driving motors with simple and lightweight components, and of generating the driving forces for control of active response of structures. Moreover, the SMA dissipaters apply the super-elasticity effect (SE) of the SMAs to improve the damping and vibration suppression capacity of structures [4][5][6][7][8] . In response to super-elastic characteristics of the SMA, the authors assembled SMA passive cable at the diagonal of each layer of steel frame structure.…”

Section: Introductionmentioning

confidence: 99%

The Vibration Control Research of Steel Frame Structure with Shape Memory Alloy (SMA) Cables

Wang

Zhang³

2013

AMM

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The dynamic response control for a three layer steel frame structure with shape memory alloy (SMA) cables under seismic ground motions was studied experimentally in the paper. A three-story steel frame structure model assembling the diagonal SMA cables was tested in a shaking table. The maximum acceleration and displacement of each layer of the steel frame structure were tested under two cases: assembling with SMA cables or not. The experimental result shows that the maximum acceleration and displacement of each layer are significantly reduced by assembling the SMA cables. The vibration responses of the steel frame structure had been greatly reduced by the great dissipation efficiency for SMA dampers.

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Road vehicle-induced vibration control of microelectronics facilities

Cited by 6 publications

References 10 publications

Shaking Table Test on Seismic Response of Isolated Bridge

Shaking Table Test on Seismic Response of Isolated Bridge

In situ experimental study of vibration reduction using thick concrete slabs with natural and cement-improved subgrade

The Vibration Control Research of Steel Frame Structure with Shape Memory Alloy (SMA) Cables

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