Development of seismic design method of liquid storage tanks considering combined effects of out-of-round deformation of the tank shell and partial uplift of the tank bottom plate

• Project/Area Number: 26289056
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: Tottori University
• Principal Investigator: TANIGUCHI Tomoyo 鳥取大学, 工学研究科, 教授 (90346370)
• Co-Investigator(Kenkyū-buntansha): 小林 信之 青山学院大学, 理工学部, 教授 (70276020)
• Research Collaborator: HAYASHI syoichiro ; NAKASHIMA teruhiro
• Project Period (FY): 2014-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000); Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2017: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000); Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 面外変形～浮上り連成 / 側板面外変形－底板浮上り連成 / タンク模型 / 加振実験 / 実稼働解析 / 底板浮上り / 耐震設計 / 平底円筒貯槽 / 側板面外変形 / ロッキング―バルジング相互作用 / 簡易解析法 / 応答スペクトル / 底板曲げ剛性 / 花びらモード / 浮上り角加速度 / 反発係数 / 簡易算定式 / ロッキング－バルジング相互作用

Outline of Final Research Achievements

This research proposed a dynamical model that describes uplift of unanchored upright cylindrical tanks, mathematically quantified the effective mass of liquid for tank rocking motion and that for rocking-bulging interaction motion and developed a simplified calculation for evaluating uplift of tanks based on the ordinates of response spectrum corresponding to tank's natural period. Moreover, this research clarified that out-of-round deformation of tank shell enhanced uplift of the tanks based on the shaking table tests with small scaled tanks.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発した動力学モデル、各種有効質量や簡易浮上り応答計算法は、同様のものがこれまでにない為、それらを考案できた学術的意義は大きい。一方、簡易浮上り応答計算法により、平底円筒貯槽の浮上り量を、応答スペクトル値に基づいて手計算で求められる様になったので、平底円筒貯槽の耐震設計の高度化に寄与できた社会的意義は大きい。更に、円筒貯槽の側板の面外変形が、底板の浮上りを助長することを明らかにしたことは、今後この分野の発展の必要性を示した意味で、学術的な意義は大きい。

Research Products

• [Int'l Joint Research] ボローニャ大学(イタリア)
• [Journal Article] ENHANCEMENT OF UPLIFT DISPLACEMENT OF TANKS DUE TO OUT-OF-ROUND DEFORMATION OF CYLINDRICAL SHELL (2019)
  • Author(s): Y. Miyauchi, T. Taniguchi, T. Nakashima, J. Hongu, D. Okui
  • Journal Title: ASME 2019 Pressure Vessels and Piping Conference Volume: -
  • Peer Reviewed
• [Journal Article] FORENSIC ESTIMATION OF UPLIFT OF AN ANCHORED TANK DURING (2019)
  • Author(s): Y. Yoshida, T. Taniguchi, T. Nakashima, K. Hatayama
  • Journal Title: ASME 2019 Pressure Vessels and Piping Conference Volume: -
  • Peer Reviewed
• [Journal Article] Applicability of the Simplified Analysis and Relevant Calculations to Evaluating Uplift Displacement of Unanchored Tanks (2018)
  • Author(s): Taniguchi Tomoyo、Yoshida Yuichi、Hatayama Ken
  • Journal Title: ASME 2018 Pressure Vessels and Piping Conference Volume: 8
  • DOI: 10.1115/pvp2018-84239
  • Peer Reviewed
• [Journal Article] Simplified Analysis of the Rocking Motion of a Cylindrical Tank Focusing on the Role of Dynamical Forces Involved in Rocking-Bulging Interaction (2017)
  • Author(s): Marta D’Amico, Tomoyo Taniguchi and Teruhiro Nakashima
  • Journal Title: ASME 2017 Pressure Vessels and Piping Conference Volume: 5
  • DOI: 10.1115/pvp2017-65442
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Contribution of The Bending Stiffness of The Tank Bottom Plate and Out-of-Round Deformation of Cylindrical Shell to The Tank Rocking Motion (2016)
  • Author(s): T. Taniguchi, T. Nakashima, Y. Yoshida
  • Journal Title: ASME 2016 Pressure Vessels and Piping Conference Volume: 8
  • DOI: 10.1115/pvp2016-63916
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Approximation of Uplift of Flat-Bottom Cylindrical Tanks and Effects of Out-of-Plane Deformation of Cylindrical Shell on it (2015)
  • Author(s): Tomoyo Taniguchi, Teruhiro Nakashima and Daisuke Okui
  • Journal Title: Proc. ASME. 57034; Seismic Engineering Volume: 8
  • DOI: 10.1115/pvp2015-45083
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Simplified Rocking Model of Unanchored Cylindrical Tank Including Baseplate Uplift and Cross Sectional Deformation of Tank Shell due to Seismic Load (2015)
  • Author(s): Nobuyuki Kobayashi; Toshiki Tashita; Sho Takizawa; Tomoyo Taniguchi
  • Journal Title: Proc. ASME. 57034; Seismic Engineering Volume: 8
  • DOI: 10.1115/pvp2015-45082
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Masses of Fluid Contributing to Rocking Motion of Cylindrical Tanks With Partial Uplift of Bottom Plate (2014)
  • Author(s): Tomoyo Taniguchi and Yukihiro Katayama
  • Journal Title: Proceedings of ASME 2014 Pressure Vessels and Piping Conference Volume: 8
  • DOI: 10.1115/pvp2014-28634
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A Case Study of Evaluation of Tank Rock Motion With Simplified Analysis Procedure (2014)
  • Author(s): Tomoyo Taniguchi and Daisuke Okui
  • Journal Title: Proceedings of ASME 2014 Pressure Vessels and Piping Conference Volume: 8
  • DOI: 10.1115/pvp2014-28635
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] Free-Rocking Experiment test for verifying The 2DOF Model of Flat-Bottom Cylindrical Shell Tank (2017)
  • Author(s): 吉田 祐一，Marta D’Amico，谷口 朋代，小野 祐輔，向坊 恭介
  • Organizer: 第69回土木学会中国支部研究発表会
• [Presentation] Enhancement of Uplift Displacement of the tank bottom plate Due to The Out-Of-Round Deformation of Cylindrical Shell (2017)
  • Author(s): 吉田 祐一，中島 照浩，谷口 朋代，小野 祐輔，向坊 恭介
  • Organizer: 第69回土木学会中国支部研究発表会