000019950 001__ 19950
000019950 005__ 20170118182348.0
000019950 04107 $$aeng
000019950 046__ $$k2017-01-09
000019950 100__ $$aYamashita, Tetsuo
000019950 24500 $$aDamage Prediction and Retrofit Plan Using Dampers for a High-Rise Steel Building in Tokyo Based on Its Response Records

000019950 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019950 260__ $$b
000019950 506__ $$arestricted
000019950 520__ $$2eng$$aThe Great Tohoku-oki earthquake of March 11, 2011 (the ‘311’ earthquake) showed that the intensity of ground shaking for some site location has been as large or larger than the maximum levels (450 years reoccurrence period) considered in the current design of typical structures in Japan. In addition, the ground motion in the Tokyo Metropolitan showed extremely long durations (around 10 min.). Structural engineers and researchers have consequently recognized that the structural performance should be improved to match the potential of more intensive shaking with long durations in the future. Seismologists expected that the Tokyo metropolitan area will experience as large as three to four times the shaking of the 311 earthquake in near future, such as M7-class earthquakes under the City of Tokyo (the ‘Shuto-Chokka’ earthquake) and/or a M8/M9-class earthquake along the Nankai-trough (the ‘Nankai-Trough’ eathquake). In such cases, high-rise buildings, particularly those without protective systems, are supposed to suffer significant structural damage. Accordingly, the comprehensive seismic performance reevaluation and corresponding retrofitting on existing high-rise buildings have become the most critical issues in current structural engineering in Japan. In this study, a 29-story steel building is analyzed, which is a university campus building, and experienced great shaking during the 311 earthquake. The building structure is a conventional moment resisting frame, and characterized by long-span with many braces of non-ductile performance. First, a detailed member-to-member frame model of the building is constructed, and the validity of the model is checked by comparing the simulated results with the observed records of the 311 earthquake. Next, the nonlinear structural analysis is conducted and its structural damage is estimated using large input ground motions for the hypothetical Shuto-Chokka and Nanka-Trough earthquakes. Finally, a new retrofit design methodology to optimally determine the location of dampers will be presented, and the effect and efficiency is confirmed.

000019950 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019950 653__ $$aHigh-Rise Building Retrofit; Damper; the 2016 Great Tohoku-oki earthquake; nonlinear structural analysis

000019950 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019950 720__ $$aYamashita, Tetsuo$$iDu, Dong-Sheng$$iPu, Wuchuan$$iShirasaki, Kazuyuki$$iAoki, Hanako$$iKasai, Kazuhiko$$iHisada, Yoshiaki$$iNakanishi, Mako
000019950 8560_ $$ffischerc@itam.cas.cz
000019950 8564_ $$s4216042$$uhttps://invenio.itam.cas.cz/record/19950/files/4784.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4784.
000019950 962__ $$r16048
000019950 980__ $$aPAPER