Damage of Water Tanks and Its Relationship With Strong Ground Motion in Kumamoto Area During the 2016 Kumamoto Earthquake

Inoue, Ryosuke; Sakai, Fujikazu; Omine, Shuichi

doi:10.2208/jscejseee.73.i_711

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To quantify the decrement of corresponding water pressure, the following index, DWP is defined; (1) where (P/F)MAX and (P/F)MAX,0 are the maximums of corresponding water pressure in the tanks with and without seismic device, respectively. The decrement of corresponding water pressure increased with increasing thickness of rubber plate and with increasing surface pressure, but it was not clearly correlated by these properties.…”

Section: Effect Of Seismic Device Property On Decrement Of Water Presmentioning

confidence: 99%

“…Some water tanks made of stainless steel and FRP were damaged by the big earthquake at Kumamoto (M 7.3), 2016 in Japan (1). In the case of long period earthquake the convective pressure occurs at the upper side wall of tank by sloshing, and in the case of short period earthquake, on the other hand, the impulsive pressure does at the lower side wall of tank.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of Seismic Device for Stainless Steel Rectangular Water Tank at Short Period Earthquake

Aoki¹,

Bandô²,

Watanabe

et al. 2019

ce papers

View full text Add to dashboard Cite

The seismic device effective for an existing stainless steel rectangular water tank was developed to prevent the damage of tank by earthquake, especially focusing on the short period earthquake where the impulsive pressure acts on the side wall of tank. The seismic device consisted of a thin high damping rubber plate, sandwiched with two metal plates, which were attached on both the surfaces of the rubber plate. These seismic devices were expected to be set between the base frame of tank and the anchor block. First, a shaking table test of a small water tank (1,000 mm×1,000 mm×1,000 mm) made of stainless steel panels was performed under the several conditions of the number, shape and rubber thickness of the seismic devices. Then, eight seismic devices were set to a large water tank (3,000 mm×3,000 mm×3,000 mm) constructed from nine stainless steel panels for each side wall. These tanks were put on the shaking tables and dynamic shaking tests were performed. The shaking frequency was varied from DC to 12 Hz with a given interval step and the water pressure on the side wall of tank was measured. In this study, by setting the seismic devices to both the small and large water tanks, the natural impulsive frequencies of tanks became a little lower, and the impulsive pressure at the natural frequency became smaller with increasing rubber thickness and with increasing surface pressure. When the HYOGOKEN-NANBU earthquake waves were given to the large water tank with the seismic devices, the impulsive pressure at the short period oscillation was largely suppressed but the sloshing pressure at the long period oscillation was scarcely enhanced.

show abstract

Section: Effect Of Seismic Device Property On Decrement Of Water Presmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of Seismic Device for Stainless Steel Rectangular Water Tank at Short Period Earthquake

Aoki¹,

Bandô²,

Watanabe

et al. 2019

ce papers

View full text Add to dashboard Cite

show abstract

Effect of Installation of a Perforated Plate on Suppression of Sloshing Wave Height in a Rectangular Water Tank at Long-Period Earthquake

Aoki¹,

Bandô²,

Suzuki

2019

KAGAKU KOGAKU RONBUNSHU

View full text Add to dashboard Cite

Estimation Bulging Frequency of the Real Scale Tank by Micro-Tremor Measurement and Calculation of Natural Frequency

HIRAI,

ONO,

HIRANO

et al. 2024

Japanese Journal of JSCE

View full text Add to dashboard Cite

Damage of Water Tanks and Its Relationship With Strong Ground Motion in Kumamoto Area During the 2016 Kumamoto Earthquake

Cited by 3 publications

References 0 publications

Development of Seismic Device for Stainless Steel Rectangular Water Tank at Short Period Earthquake

Development of Seismic Device for Stainless Steel Rectangular Water Tank at Short Period Earthquake

Effect of Installation of a Perforated Plate on Suppression of Sloshing Wave Height in a Rectangular Water Tank at Long-Period Earthquake

Estimation Bulging Frequency of the Real Scale Tank by Micro-Tremor Measurement and Calculation of Natural Frequency

Contact Info

Product

Resources

About