American Society of Civil Engineers


Experimental Evaluation of an Innovative Isolation System for a Lightweight Steel Moment Frame Building at E-Defense


by Nhan D. Dao, (Civil and Environmental Engineering, University of Nevada, Reno/MS 0258, Reno, NV 89519. E-mail: nhan.unr@gmail.com), Keri L. Ryan, (Civil and Environmental Engineering, University of Nevada, Reno/MS 0258, Reno, NV 89519. E-mail: keri.ryan@unr.edu), Eiji Sato, (National Research Institute for Earth Science and Disaster Prevention, 1501-21 Nishikameya, Mitsuta, Shijimi-cho Miki, Hyogo, Japan 673-0515. E-mail: eiji@bosai.go.jp), Taichiro Okazaki, (Faculty and Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan; formerly NIED. E-mail: tokazaki@eng.hokudai.ac.jp), Stephen A. Mahin, (Civil and Environmental Engineering, 777 Davis Hall, University of California, Berkeley, California, 94720-1710. E-mail: mahin@berkeley.edu), Arash E. Zahgi, (Civil and Environmental Engineering, University of Nevada, Reno/MS 0258, Reno, NV 89519. E-mail: esmailiz@unr.edu), Kouichi Kajiwara, (National Research Institute for Earth Science and Disaster Prevention, 1501-21 Nishikameya, Mitsuta, Shijimi-cho Miki, Hyogo, Japan 673-0515. E-mail: kaji@bosai.go.jp), and Taizo Matsumori, (National Research Institute for Earth Science and Disaster Prevention, 1501-21 Nishikameya, Mitsuta, Shijimi-cho Miki, Hyogo, Japan 673-0515. E-mail: taizo@bosai.go.jp)
Section: Posters, pp. 2951-2962, (doi:  http://dx.doi.org/10.1061/41171(401)256)

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Document type: Conference Proceeding Paper
Part of: Structures Congress 2011
Abstract: In a collaborative effort between NEES TIPS, NIED in Japan, and the NEES Nonstructural Grand Challenge project, a 5-story steel moment frame building will be shaken at the E-Defense facility in Japan. The specimen will be shaken both with and without triple friction pendulum isolators. Nonstructural components including interior walls, ceilings, piping, and concrete cladding panels will be constructed and in the specimen. The isolated specimen will be shaken to a suite of motions representing frequent, design/L2, and MCE/L3 level motions. The tests represent the grandest showcase of the benefit of seismic isolation technology to date, and the primary objective of the tests is to demonstrate that damage free performance can be targeted and achieved against an MCE/L3 earthquake. Limit state tests will illustrate the performance when the demands exceed the displacement capacity of the bearings. The tests will take place over a 3-week time frame in August 2011, with 4 days of shaking anticipated.


ASCE Subject Headings:
Experimentation
Innovation
Steel
Frames
Japan
Buildings