WIND RESPONSES OF A TOWER SUPPORTED STEEL STACK(Structures)

Homma, Shinsuke; 真, 本間; 潤滋, 前田; Maeda, Junji; 達哉, 薄; Tatsuya, Susuki; 敏秋, 巻幡; Makihata, Toshiaki

doi:10.3130/aijt.9.97_1

Cited by 3 publications

(6 citation statements)

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“…A concentrated load was applied by the test bench to the horizontal center 0.29m away from the rotary axis of the soundproof plate. Results of measurements of gusts of wind [5], indicated that the load increment speed in the case of gusts could be assumed to be about 15N/s. The test bench load application speed , i.e.…”

Section: Test Methodsmentioning

confidence: 99%

Development of a Wind Load Reduction Soundproof System

et al. 2012

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It is generally difficult to install extremely high soundproof walls without drastic reinforcement of the viaduct because the higher the wall, the greater the wind load and moment. A new type of soundproof system was therefore developed. The proposed system comprises a clear soundproof plate and supporting frames. The top of soundproof plate is supported by a rotary axis and all or a part of the other three sides of the plate are fixed by magnetic attractive forces and offers high soundproof performance in ordinary conditions. When the wind load exceeds the safety limit for the viaduct, the plate opens and the appropriate wind load is released. A load test and wind tunnel test were conducted and the wind load reduction mechanism of the developed system was verified.

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Section: Test Methodsmentioning

confidence: 99%

Development of a Wind Load Reduction Soundproof System

et al. 2012

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“…The crack width of the unit panel is related to the volume ratio, the aspect ratio and the bonding property of the steel fiber. Therefore, the formula (8) needs to be modified. The effect of steel fiber on the maximum crack width is now discussed.…”

Section: Calculation Of Maximum Crack Widthmentioning

confidence: 99%

“…Due to the high strength of RPC and the incorporation of steel fiber, the stress of the rebar in the panel will decrease with the increase of the strength of the matrix and the increase of the dosage of the steel fiber. The formula (8) has been modified to the formula (10) in the reference [21].…”

Section: Stress Of Tensile Reinforcementmentioning

confidence: 99%

“…Under the bending load, the cracking loads of the panels are mainly determined by the tensile strength of RPC and the prestressing value. The cracking moment of the panels can be calculated according to formula (5).…”

Section: Moment At Crack For In Situ Unit Panelsmentioning

confidence: 99%

“…In order to control the occurrence and development of cracks, prestressing is applied by directly stretching the longitudinal reinforcement to improve the crack resistance of the unit panel. Homma et al [8 ] proposed an electromagnetically controlled swingable sound barrier to prevent excessive deformation. G. R. Watts et al [9] studied the effects of different cap shapes, wind speeds and wind directions on the noise reduction of sound barriers.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental study on flexural behavior of new type of prestressed reactive powder concrete sound barrier for high‐speed rail

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et al. 2020

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Study on Deloading Properties of Perforated Sound Barriers

Han

Xiao

et al. 2013

AMM

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Based on the 3D unsteady incompressible Navier-Stokes equation and the turbulent model ofk-εtwo equations, the processes of electric multiple units CRH380B passing by sound barriers installed on viaducts at the speed of 350 km/h were numerically simulated by finite volume method. The aerodynamic impulse pressure on sound barriers was analyzed. The distribution of impulse pressure on perforated sound barriers was compared with that on those with no holes. Effects of the shape, the size, the density, and tilt angle of the holes on deloading properties of perforated sound barriers were investigated. The numerical results show that the deloading properties of perforated sound barriers with circular holes are similar to those with square holes. The holistic distribution of impulse pressure on perforated sound barriers is similar to those with no holes. The density increases in two different directions has almost the same influence on the deloading properties. Deloading properties of perforated sound barriers become worse when tilt angle of holes increases.

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WIND RESPONSES OF A TOWER SUPPORTED STEEL STACK(Structures)

Cited by 3 publications

References 0 publications

Development of a Wind Load Reduction Soundproof System

Development of a Wind Load Reduction Soundproof System

Experimental study on flexural behavior of new type of prestressed reactive powder concrete sound barrier for high‐speed rail

Study on Deloading Properties of Perforated Sound Barriers

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