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TECHNICAL PAPERS

Seismic Performance Evaluation of Seismically Isolated Buildings Introduced to the Building Code of Japan

[+] Author and Article Information
Mitsumasa Midorikawa, Masanori Iiba

Building Research Institute, 1 Tachihara, Tsukuba, Ibaraki, 305-0802 Japan

Norihide Koshika

Kajima Corporation, 6-5-30, Akasaka, Minato-ku, Tokyo, 107-8502 Japan

J. Pressure Vessel Technol 126(1), 18-24 (Feb 26, 2004) (7 pages) doi:10.1115/1.1638390 History: Received March 30, 2003; Revised June 25, 2003; Online February 26, 2004
Copyright © 2004 by ASME
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References

Hiraishi, H., Midorikawa, M., Teshigawara, M., Gojo, W., and Okawa, I., 2000, “Development of Performance-Based Building Code of Japan-Framework of Seismic and Structural Provisions,” Proc. 12th World Conference on Earthquake Engineering, Paper ID 2293.
Midorikawa, M., Hiraishi, H., Okawa, I., Iiba, M., Teshigawara, M., and Isoda, H., 2000, “Development of Seismic Performance Evaluation Procedures in Building Code of Japan,” Proc. 12th World Conference on Earthquake Engineering, Paper ID 2215.
Kuramoto, H., Teshigawara, M., Okuzono, T., Koshika, N., Takayama, M., and Hori, T., 2000, “Predicting the Earthquake Response of Buildings Using Equivalent Single Degree of Freedom System,” Proc. 12th World Conference on Earthquake Engineering, Paper ID 1093.
Ministry of Land, Infrastructure and Transport, 2000, “Notification No. 2009-2000, Technical Standard for Structural Specifications and Calculation of Seismically Isolated Buildings,” (in Japanese).
Ministry of Land, Infrastructure and Transport, 2000, “Notification No. 1446-2000, Technical Standard for Specifications and Quality of Structural Materials,” (in Japanese).
Ministry of Land, Infrastructure and Transport, Building Research Institute, Japan Conference of Building Officials, Japan Society of Seismic Isolation, and Building Center of Japan, 2001, “Commentary on Technical Standards and Calculation Procedures of Seismically Isolated Buildings,” Kogaku-tosho (in Japanese).
Building Research Institute, Japan Society of Seismic Isolation, and Kenchiku Kenkyu Shinko Kyokai, 2001, “Technical Background of the Provisions of Seismically Isolated Buildings in the Revised Building Standard Law of Japan,” Gyosei (in Japanese).
Ministry of Land, Infrastructure and Transport, 2000, “Notification No. 1457-2000, Technical Standard for Structural Calculation of Response and Limit Strength of Buildings,” (in Japanese).
Ministry of Land, Infrastructure and Transport, 1980, “Notification No. 1793-1980, Technical Standard for Calculation of Seismic Story Shear Distribution Factor along the Height of a Building Structure, etc.,” (in Japanese).

Figures

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Basic acceleration response spectrum at engineering bedrock So corresponding to critical damping ratio h of 0.05 of a SDOF system
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Amplification factor of surface soil layers Gs
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Acceleration response spectrum at ground surface corresponding to critical damping ratio h of 0.05 of a SDOF system; in case of Z=1.0
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Model of seismically isolated structure (M: mass of superstructure; Keq: equivalent stiffness of seismic isolation system, and, heq: equivalent viscous damping ratio of an ESDOF system)
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Response shear and displacement in demand and capacity spectra (heq: equivalent viscous damping ratio of an ESDOF system)
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Load-deformation curves of each element and total hysteresis curve of seismic isolation system
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Prediction of response of seismically isolated building using demand spectrum for heq and capacity spectrum
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Relationship between equivalent damping heq and displacement
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Dissipation energy and potential energy of elasto-plastic hysteretic system: (a) dissipation energy of elasto-plastic damper; (b) potential energy of elasto-plastic damper; and (c) potential energy of elastomeric isolator.
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Damping coefficient Cvi and equivalent velocity Veq for fluid damper
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Comparison of response displacements obtained from simplified procedures and time history analysis
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Tangential stiffness at typical displacement δt

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