Search Results 1-20 of 2996

  • Approach of the earthquake prediction based on precursory phenomenon  [in Japanese]

    森川 薫

    技術士 (641), 24-27, 2020-05

  • SEISMIC DESIGN METHOD BASED ON SPECTRUM CAPACITY PROCEDURE FOR TIMBER SEMI-RIGID FRAME WITH OIL DAMPER  [in Japanese]

    SHINOHARA Masatoshi , ISODA Hiroshi

    … (Kasai Extended Limit Strength Calculation Method)</p><p> </p><p> ・By comparing shaking table experiment of 1 story timber frame structure result with response prediction value from Extended Limit Strength Calculation Kasai Extended Limit Strength Calculation Method, the correspondence of experimental values and the predicted values of various input levels (level 1 to level 3) was confirmed.</p> …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (769), 355-365, 2020-03

    J-STAGE  AIJ 

  • Estimation of subsurface structure models by microtremors and strong motion prediction due to a scenario earthquake in Mandalay, Myanmar  [in Japanese]

    藤田 秀隆 , 三浦 弘之

    日本建築学会中国支部研究報告集 日本建築学会中国支部 編 43, 285-288, 2020-02-29

  • SIMPLIFIED EVALUATION OF MEMBER FORCE FOR WOODEN HORIZONTAL HYBRID STRUCTURE CONSIDERING NONLINEARITY OF WOODEN ELEMENTS:Study on dynamic behavior of wooden horizontal hybrid structure : Part3  [in Japanese]

    YAMAZAKI Yoshihiro , SAKATA Hiroyasu

    … Therefore applicability of equivalent linear model is discussed by comparison of analysis result with test result, and simplified evaluation of member force is addressed.</p><p> In this research, prediction by the proposed method is compared to test results conducted by the authors<sup>9)</sup>. … The followings are findings of this research.</p><p> 1) The prediction method of displacement mode which the authors had proposed was applied to the specimens. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (768), 241-250, 2020-02

    J-STAGE  AIJ 

  • IDENTIFICATION OF ROTATIONAL INPUT MOTION AND DAMPING RATIO USING HORIZONTAL ACCELERATION RECORDS  [in Japanese]

    SUZUKI Takuya , TOJO Takaki

    … <p> In the seismic design of buildings, setting the damping ratio is of considerable importance, as this parameter greatly affects the prediction accuracy of building behavior during earthquakes. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (767), 51-60, 2020-01

    J-STAGE  AIJ 

  • STATIC DISPLACEMENT AND LONG-PERIOD VELOCITY PULSE OF CRUSTAL EARTHQUAKES IN JAPAN

    SATOH Toshimi

    … and long-period (2-10 s) velocity pulse from strong motion records of crustal earthquakes in Japan and examine them by comparing with those of the 2016 Kumamoto earthquake and previous prediction equations. … Prediction of <i>D</i><sub>p</sub> …

    Journal of Japan Association for Earthquake Engineering 20(5), 5_36-5_58, 2020

    J-STAGE 

  • CO diffusive emission in the co-seismic rupture zone of the Wenchuan <i>M<sub>S</sub></i> 8.0 earthquake

    Sun Yutao , Zhou Xiaocheng , Du Jianguo , Guo Zhengfu

    … 8.0 earthquake produced the ~240-km-long Yingxiu-Shuiguan rupture zone and the ~72-km-long Tongji-Hanwang rupture zone. … 8.0 earthquake (WSRZ) was measured using the closed-chamber method. … 8.0 earthquake. …

    GEOCHEMICAL JOURNAL 54(3), 91-104, 2020

    J-STAGE 

  • Construction of explainable random forest predictor for ground-motion intensity  [in Japanese]

    KUBO Hisahiko , KUNUGI Takashi , SUZUKI Wataru , KIMURA Takeshi , AOI Shin

    <p>機械学習のブラックボックス性に関しては多くの議論があり、防災や医療、金融などの分野において人工知能技術を活用していく際には人工知能に説明や解釈が求められるケースが出てくると想定される。そのため、説明可能AIに向けた取り組みが今後ますます重要になっていくと考えられる。本研究では、地震動指標のランダムフォレスト予測器を対象として、その予測結果および機械学習モデル自体の説明・解釈を試み …

    Proceedings of the Annual Conference of JSAI JSAI2020(0), 4Rin194-4Rin194, 2020

    J-STAGE 

  • Development of Prediction Method for Household Power Consumption  [in Japanese]

    SUZUKI Soehi , TAKEISHI Naoya , KISHIMOTO Masanari , YOSHITANI Naohisa , OKINO Kenta , KAWAHARA Yoshinobu , HIROSHIMA Masahito

    <p>わが国では2011年の東日本大震災を契機に脆弱性が表面化した中央集権型エネルギーシステムの見直しが進んでいる。特に、環境への配慮から再生可能エネルギーを活用した分散型エネルギーシステムへの転換が求められるようになり、一つの解法としてVPP(Virtual Power Plant)と呼ばれる構想が注目されている。2021年に国内に創設される需給調整市場に向けて、本研究は世帯別の消費 …

    Proceedings of the Annual Conference of JSAI JSAI2020(0), 4M3GS1305-4M3GS1305, 2020

    J-STAGE 

  • Clustering of people's trajectories from wide-area evacuation simulation assuming a large earthquake and its application to evacuation behavior prediction  [in Japanese]

    OKI Takuya , OGAWA Yoshiki

    <p>大地震発生直後,人々の滞留状況や避難状況をリアルタイムに把握することは,二次被害を軽減する上で重要である.しかし,従来のシミュレーション技術を災害時の初動対応等へリアルタイムに活用するためには,計算時間や推定精度の課題を克服する必要がある. そこで本稿では,大地震時の物的被害(建物倒壊,道路閉塞,市街地火災延焼)および避難者一人ひとりの行動を記述する精緻な都市内広域避難シミュレー …

    Proceedings of the Annual Conference of JSAI JSAI2020(0), 2C5OS7b02-2C5OS7b02, 2020

    J-STAGE 

  • <b>Real-time Prediction Method of Tsunami Inundation for Railway Line</b>

    TSUNO Seiji

    … The author therefore developed a real-time prediction method of tsunami inundations for railway lines, immediately after large earthquakes occur at sea. …

    Quarterly Report of RTRI 61(2), 90-95, 2020

    J-STAGE 

  • NONRESPONSE BIAS IN MIXED-MODE SURVEYS FOR DISASTER RECOVERY: THE CASE OF MASHIKI FOLLOWING THE 2016 KUMAMOTO EARTHQUAKE  [in Japanese]

    SATO Yoshihiro , MARUYAMA Takuya

    <p> 2016年熊本地震の被災地益城町で2017年7月に実施された被災者の今後の住まいに関する調査では,回収率向上のため,督促状の発送や無回答世帯への訪問など様々な取り組みがなされた.本研究ではこれらの取り組みの効果検証を意図して,回答時期による回答世帯の属性の違い,無回答世帯の実態,および無回答バイアスの有無や傾向を明らかにすることを目的とする.基礎属性分析の結果,世帯主の年齢が低 …

    Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management) 76(2), 128-137, 2020

    J-STAGE 

  • GROUND MOTION PREDICTION EQUATION OF THE SEISMIC INTENSITY MEASURE TO EVALUATE STRUCTURAL DAMAGE TO HOUSES AND BUILDINGS FOR CRUSTAL EARTHQUAKES IN JAPAN  [in Japanese]

    ARAI Kensuke , SAKAI Yuki

    … <p> In this study we developed a new ground motion prediction equation (GMPE) of the seismic intensity measure to evaluate structural damage to houses and buildings for crustal earthquakes in Japan using strong ground motion records. … Depth dependence was not clear.</p><p> </p><p> 4) We also examined the intra-earthquake variation. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) 85(770), 475-484, 2020

    J-STAGE 

  • Statistical relation between earthquakes and radiation dose increments at the radiation monitoring post  [in Japanese]

    Ogura Yuya , Motojima Kuniyuki

    Journal of Atmospheric Electricity 38(2), 101-112, 2020

    J-STAGE 

  • Risk estimation of tsunami disaster wastes in a region affected by the anticipated Nankai Trough earthquake  [in Japanese]

    Kojima Takayuki , Ishibashi Hiroki , Akiyama Mitsuyoshi , Koshimura Shunichi

    … <p>During the 2011 Great Japan earthquake, approximately 23 million tons of disaster debris was generated. … In this paper, a risk-based framework for estimating the tsunami disaster wastes in a region affected by the anticipated Nankai Trough earthquake is presented taking into consideration uncertainties associated with the prediction of tsunami hazard and structural vulnerability. …

    Journal of Structural Engineering, A 66A(0), 159-169, 2020

    J-STAGE 

  • Depth distribution of liquefaction strength characteristics at a site damaged by the Great East Japan Earthquake and predictions of liquefaction  [in Japanese]

    ISHIKAWA Keisuke , YASUDA Susumu , WADA Masao

    <p>東日本大震災では東京湾岸の埋立地で液状化による被害が生じた。筆者らは,震災後に深刻な被害を受けた浦安市入船4丁目にて,液状化による戸建て住宅の被害メカニズムを解明する目的で詳細な地盤調査を実施した。調査内容は,標準貫入試験,PS検層,地下水位測定,連続的に採取した乱れの少ない試料に対する室内土質試験(物理特性,液状化試験)である。本報では,連続的に採取した乱れの少ない試料から得ら …

    Japanese Geotechnical Journal 15(1), 67-79, 2020

    J-STAGE 

  • Application of Three-dimensional Static Analysis to Evaluation of Residual Settlement and Inclination of Spread Foundation Induced by Liquefaction  [in Japanese]

    KOBAYASHI Makiko , UNO Hiroki , TADANO Yusuke , TATEISHI Akira

    <p>2011年東北地方太平洋沖地震で発生した液状化による建物被害は,住宅等の直接基礎構造物の被災予測と対策工評価の重要性が再認識される契機になった。これらの検討では,本来,地盤条件に加えて基礎形状や配置,偏荷重等,3次元的な条件を考慮することが不可欠な場合が多いが,実務に容易に適用可能な解析法が確立されるには至っていない。こうした中,著者らは2次元静的解析プログラムALIDをベースに …

    Japanese Geotechnical Journal 15(1), 145-158, 2020

    J-STAGE 

  • Acquisition of Ground Information in Downtown Yangon for Bosai Operation Support System

    Naing Tun , Thinzar Su , Numada Muneyoshi , Yu Khin Than , Meguro Kimiro

    … Unfortunately, it is located in a moderately active-seismic area, and significant damage and loss will be incurred if an earthquake occurs there in the future. … The Yangon Bosai Operation Support System (BOSS), designed to establish a proper disaster management system based on the potential damage that a future earthquake might cause, is under development. …

    Journal of Disaster Research 15(3), 377-386, 2020

    J-STAGE 

  • Discovery of active faults in the Kitakami Mountains  [in Japanese]

    Tajikara Masayoshi , Nakata Takashi

    <p><b>1</b><b>.はじめに</b></p><p></p><p> 東北日本弧外弧隆起帯にあたる北上山地は、太平洋岸に海岸段丘が発達するが、山地内では比較的地殻変動が不活発であると考えられて来た。そのため、詳細な活断層調査は積極的に行われず、山地北部の折爪断層を除いて、活断層はマッピ …

    Proceedings of the General Meeting of the Association of Japanese Geographers 2020s(0), 252, 2020

    J-STAGE 

  • Variability of Ground Motion Simulation due to Aleatory Uncertainty of Source Parameters  [in Japanese]

    HIKITA Tomoki , KOKETSU Kazuki , MIYAKE Hiroe

    <p>断層パラメタの偶然的不確かさによる予測地震動振幅のばらつきを評価することを目的として,断層パラメタの不確かさを仮定し,条件が異なる多数の断層モデルを用いた地震動シミュレーションを実施した.仮定した断層パラメタの不確かさの条件は,予測地震動振幅のばらつきの特徴を、引田・他(2018)が評価した偶然的不確かさによる観測地震動振幅のばらつきの特徴と比較することで,その合理性を確認した. …

    Journal of Japan Association for Earthquake Engineering 20(3), 3_21-3_34, 2020

    J-STAGE 

Page Top