Development of a rheology model of laminated rubber bearings for seismic design: Establishment of design method at low temperature

2012 Fiscal Year Final Research Report

• Project/Area Number: 22560473
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Saitama University
• Principal Investigator: OKUI Yoshiaki 埼玉大学, 大学院・理工学研究科, 教授 (40214051)
• Project Period (FY): 2010 – 2012
• Keywords: 耐震構造

Research Abstract

A seismic design model of base-isolation rubber bearings for nonlinear dynamic analyses is investigated especially under low temperature conditions. The rubber bearing tests are carried out in low temperatures environment up to -30 C deg. to identify temperature dependency of mechanical behavior. A rheology model including elastic-visco-plastic elements is developed to reproduce strain-rate dependent response prominent in high damping rubber bearings and elastic-plastic response in lead rubber bearings.

Research Products

• [Journal Article] A Simplified Model and Low Temperature Behavior, Journal of Japan Society of Civil Engineers (2012)
  • Author(s): Muhammad Kashif RAZZAQ, Yoshiaki OKUI, Abdur Rahman BHUIYAN, A. F. M. Saiful AMIN, Hiroshi MITAMURA, Takashi IMAI, Application of Rheology Modeling to Natural Rubber and Lead Rubber Bearings
  • Journal Title: Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) Volume: Vol. 68, No. 3 Pages: 526-541
  • Peer Reviewed
• [Presentation] Seismic Response Prediction of Base Isolated Multi-Span Highway Bridge With Different Modeling Techniques For Lead Rubber Bearings (2012)
  • Author(s): Muhammad Kashif RAZZAQ, Yoshiaki OKUI, Hiroshi MITAMURA, Takashi IMAI
  • Organizer: Proc. of 18^<th> IABSE Congress, Seoul, Korea, A-0058
  • Year and Date: 2012-09-20
• [Presentation] ゴム支承の温度依存性に関する研究とMullins効果のモデル化の検討,石島慎也 (2012)
  • Author(s): 奥井義昭,Nguyen Anh Dung,今井隆,三田村浩
  • Organizer: 平成24年度土木学会全国大会第67回年次学術講演会概要集
  • Place of Presentation: 名古屋,愛知県
  • Year and Date: 2012-09-05
• [Presentation] Effect of Isolation Bearing's Modeling on Seismic Response Prediction of Base Isolated Multi-Span Highway Bridge (2012)
  • Author(s): M. K. Razzaq, Y. Okui, H. Mitamura, T. Imai
  • Organizer: 3rd International Structural Specialty Conference, CSCE, Edmonton, Alberta, Canada, STR-1004-1-10
  • Year and Date: 2012-06-08
• [Presentation] 高減衰ゴム支承のモデル化に違いによる橋梁応答解析結果への影響と低温時の挙動,I-572,pp.1143-1144 (2010)
  • Author(s): 奥井義昭,A. Rahman Bhuiyan,三田村浩,今井隆
  • Organizer: 土木学会第65回年次学術講演会
  • Place of Presentation: 札幌,北海道
  • Year and Date: 2010-09-01
• [Presentation] Experimental Study of Rate-Dependent Mechanical Behavior of Laminated Rubber Bearings (2010)
  • Author(s): T.Imai, A.R.Bhuiyan, M.K.Razzaq,Y.Okui, H.Mitamura
  • Organizer: Proc. of 7th Int. Conf. on Urban Earthquake Eng. &5th Int. Conf. on Earthquake Eng
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2010-03-04
• [Presentation] Effect of Rubber Bearing's Modeling on Seismic Response of Base Isolated Highway Bridge (2010)
  • Author(s): M. K. Razzaq, A. R. Bhuiyan, Y. Okui, H. Mitamura, and T. Imai
  • Organizer: Proc. of 7th Int. Conf. on Urban Earthquake Eng. &5th Int. Conf. on Earthquake Eng.
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2010-03-04