Search Results 1-20 of 1749

  • STUDY ON SEISMIC RESPONSE OF LARGE-SPAN CANTILEVERED ROOFS CONSIDERING VIBRATION CHARACTERISTICS OF MAIN STRUCTURES  [in Japanese]

    ARAI Yudai , YAMASHITA Testuo

    … <p> During the 2011 off the Pacific coast of Tohoku Earthquake, many buildings suffered destruction of nonstructural components, especially fall of ceiling. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) (762), 1073-1080, 2019-08

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  • OVERTURNING RISK OF FURNITURE DUE TO THE LONG-PERIOD PULSE GROUND MOTION CONSIDERING KINETIC ENERGY  [in Japanese]

    HANATA Yuma , MURAO Osamu , MEGURO Kimiro

    … <p> Level 4 of the long-period pulse ground motion was observed, for the first time in Japan, when the Kumamoto Earthquake hit Nishihara Village on April 16, 2016. … Long-period ground motion is ground movement during an earthquake with a period longer than 1 second and instantaneously generates large acceleration. …

    Journal of Architecture and Planning (Transactions of AIJ) (761), 1645-1655, 2019-07

    J-STAGE  AIJ 

  • Damage Evaluation of Full-Scale Steel Gymnasium based on E-Defense Shaking Table Tests

    佐藤 大樹 , Sato Daiki , 鈴木 理恵 , Suzuki Rie , 和田 穂月 , Wada Hotsuki , 佐々木 智大 , Sasaki Tomohiro , 青井 淳 , Aoi Atsushi , 田川 浩之 , Tagawa Hiroyuki , 梶原 浩一 , Kajiwara Koichi

    … During the 2011 Tohoku earthquake off the Pacific coast of Japan, destruction of the column base and brace of a school gymnasium, which is a large spacious building, was reported. …

    Proceedings of SEWC'19 International Structural Engineers World Congress on Architecture and Structure: from Past to Future, 1009-1020, 2019-04

    IR 

  • Shaking table test on the effect of the cofferdam construction in liquefaction  [in Japanese]

    田口 善文

    … Liquefaction is a phenomenon in which the water pressure between particles rises due to the shake of large earthquakes due to the high groundwater level and loose sandy ground and becomes like a liquid, as a result, buildings and roads may settle, and light structures under the ground float. …

    近畿大学工業高等専門学校研究紀要 = Research reports Kindai University Technical College (12), 73-76, 2019-03-15

    IR 

  • LITERATURE SURVEY ON DAMAGE APPEARED IN AKITA PREFECTURE DUE TO THE 1968 TOKACHI-OKI EARTHQUAKE  [in Japanese]

    MIZUTA Toshihiko , KAGAMI Hiroshi

    … <p>The authors have been continuing literature surveys on inland damaging earthquakes in Akita prefecture. … The 2011 off Pacific coast of Tohoku earthquake also caused damage in Akita prefecture. …

    AIJ Journal of Technology and Design (59), 527-530, 2019-02

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  • A Study on Effect of Non-Structural Components for Vibration Behavior of Steel Building Based on Microtremor Measurements  [in Japanese]

    小林 礼奈 , 渡壁 守正

    … Serious damage to non-structural components such as ALC walls, ceilings and windows was reported after the 2011 earthquake off the Pacific coast of Tohoku. …

    広島工業大学紀要. 研究編 53, 137-142, 2019-02

    IR 

  • Numerical Study on Dynamic Behavior of Glass Screen System of Law-rise Steel Frame Building Based on Seismic Observation Records  [in Japanese]

    小林 礼奈 , 渡壁 守正 , 脇山 善夫 , 稲井 慎介 , 石田 琢志

    … Serious damage to nonstructural elements such as glass and ceiling materials was reported after the 2011 earthquake off the Pacific coast of Tohoku. …

    広島工業大学紀要. 研究編 53, 131-136, 2019-02

    IR 

  • A STUDY ON CHARACTERISTICS OF THE FIRST-MODE VERTICAL VIBRATION OF BUILDINGS BASED ON EARTHQUAKE OBSERVATION RECORDS  [in Japanese]

    KINOSHITA Takuya , NAKAMURA Naohiro , KASHIMA Toshihide

    … <p> This paper focuses on the first-mode natural period and damping ratio in the vertical direction for the purpose of grasping the actual characteristics of the vertical vibration of buildings. …

    Journal of Structural and Construction Engineering (Transactions of AIJ) 84(766), 1545-1555, 2019

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  • Feasibility study of full-scale elastic-plastic seismic response analysis of nuclear power plant

    MIYAMURA Tomoshi , YOSHIMURA Shinobu , YAMADA Tomonori

    … model of Unit 1 of the Fukushima-Daiichi Nuclear Power Plant, which was subjected to the 2011 off the Pacific coast of Tohoku Earthquake, is performed using the K computer in order to obtain both the global …

    Mechanical Engineering Journal 6(6), 19-00281-19-00281, 2019

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  • Damage Related to the 2011 Tohoku Earthquake in and Around Kamaishi City – Beyond the Tsunami Disaster –

    Ohsumi Tsuneo , Dohi Yuji , Hazarika Hemanta

    … <p>Widespread damage was caused in eastern Japan as a result of the earthquake and tsunami which occurred in 2011 off the Pacific coast of Tohoku (hereinafter, the 2011 Tohoku Earthquake). …

    Journal of Disaster Research 14(9), 1185-1200, 2019

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  • RAILWAY FRAGILITY CURVES CONSTRUCTED DUE TO AFTERMATH OFF THE 2011 TOHOKU EARTHQUAKE AND TSUNAMI, APPLYING TO TSUNAMI HAZARD ASSESSMENT  [in Japanese]

    SATO Yuko , TSUNO Seiji , ONO Teppei , HASHIMOTO Norihiko

    … 波被害と浸水深をGIS上で統合し,従来建築物等を対象に構築されてきた被害関数を鉄道構造物について構築した.その結果,鉄道構造物を対象とした津波被害関数は,構造種別毎に異なる特徴を有することがわかった.構築した被害関数と浸水深の数値解析結果を用いて,津波ハザードマップを作成した結果,2011年東北地方太平洋沖地震に伴う津波による鉄道構造物の被害を適切に評価できることを確認した.</p> …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75(2), I_865-I_870, 2019

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  • SURVEY AND ANALYSIS ON EVACUATION DECISION OF RESIDENTS IN AREAS WHERE TSUNAMI EMBANKMENT CONSTRUCTION IS PROCEEDED  [in Japanese]

    YASUDA Tomohiro , YOSHIDA Kyoka , KONO Tatsuhito

    <p> 津波防護施設には,住民の避難時間を稼ぐという減災効果が期待される.東北地方太平洋沖地震後,防潮堤への信頼や安心感という防潮堤に対する住民の認識が,津波からの避難意思決定に影響を与えた可能性についての指摘があった.現在,今後30年以内に高い確率で南海トラフ地震が発生すると公表されており,甚大な被害が想定されている.本研究では,防潮堤整備が進む地域における住民を対象とし,津波防災意 …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 75(2), I_1369-I_1374, 2019

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  • STUDY ON SETTING AN EVACUATION SEA AREA FOR FISHING BOATS AT THE TIME OF TSUNAMI ATTACK  [in Japanese]

    ABE Kouki , TAKANO Shin-ei , KATO Hiroyuki , SATO Katsuhiro , ENDO Jiro , TAKASHI Takuya , NISHIOKA Shinji

    <p> 東北地方太平洋沖地震時に岩手県の田老町漁業協同組合と吉浜漁業協同組合において,漁船を沖出しし転覆等の被害が無かった漁業者を対象としたヒアリング調査を実施して実避難海域を明らかにした上で,東北地方太平洋沖地震を対象とした津波シミュレーションを行い,実海域における津波流速分布等と漁船速度の関係を分析した.</p><p> その結果,最大津波流速が船速の1/2. …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 75(2), I_779-I_784, 2019

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  • EFFECT OF THE SHAPE OF FILLING SOIL AND RIGIDITY OF FOUNDATION GROUND ON STEEL PILE OF REINFORCED BREAKWATER  [in Japanese]

    MOHRI Atsushi , YAMAGUCHI Takamune , SHINOZAWA Toshiaki , KIKUCHI Yoshiaki , NODA Shohei , TAENAKA Shinji , MORIYASU Shunsuke , OIKAWA Shin

    <p> 防波堤の耐津波性能の向上対策として,鋼管杭と中詰土によって補強を行う鋼杭補強式混成堤が提案されている.本研究では,鋼杭補強式混成堤の模型気中水平載荷実験を実施し,中詰土の形状や基礎地盤の剛性の違いによって,杭の挙動にどのような影響が生じるか検討した.その結果,ケーソンへの載荷荷重が同一の場合,中詰土の幅が狭いほど杭に生じる最大曲げモーメントは大きくなる傾向にあった.また,港外側 …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 75(2), I_432-I_437, 2019

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  • HYDRAULIC STUDY ON COUNTERMEASURE AGAINST SLIDING BY TSUNAMI OF OIL STORAGE TANK  [in Japanese]

    TAKAHASHI Kenya , IKENO Katsuya , UNO Kunihiko , NISHIHATA Takeshi , FUJII Naoki , HONOBE Hiroyuki , TAKEYA Koji

    …  2011年東北地方太平洋沖地震津波では,沿岸部に立地する石油コンビナートなどにおいて多くの危険物屋外タンク貯蔵所が甚大な被害を受けた.このうち,1,000kL未満である「小規模タンク」が約90%と報告されており,これらを対象にした津波時の安全方策を講じることは極めて重要である.</p><p> …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 75(2), I_25-I_30, 2019

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  • Fundamental Study on Applicability of Long-period Ground Motion Class for Super High-rise Residential Buildings Based on Structural Response Records and Questionnaire Survey  [in Japanese]

    HINOURA Yutaka , NAGANO Masayuki , TANUMA Takehiko , ODA Satoshi

    … を用いた長周期地震動階級の現行評価手法と併せ,1次刺激関数の形状を利用した高さ方向の応答補正,1次固有周期を用いた応答推定について検討した.関東・関西圏に位置する超高層集合住宅13棟で得られた2011年東北地方太平洋沖地震時の建物観測記録を用い,1次刺激関数と1次固有周期に着目した手法が現行手法よりもばらつきが少なく,階級一致率が高い結果を示した.また,アンケート調査に基づく被害評価値 …

    Journal of Japan Association for Earthquake Engineering 19(5), 5_2-5_11, 2019

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  • Effects of Rotation of Orientation on Amplitude and Duration Measures of Two Horizontal Components of Ground Motions  [in Japanese]

    NOJIMA Nobuoto , KUSE Masumitsu

    … 特性と継続時間に与える回転角の影響について検証した.軸を0°~180°の範囲で回転させ,振幅特性(最大加速度およびトータルパワー)および3種の継続時間(Significant,Bracketed,Uniform)を評価対象として,2011年東北地方太平洋沖地震における加速度記録を用いた評価事例を示した.最大加速度およびトータルパワーはそれぞれ区分的および完全な三角関数で表されること,Significant継続時間はトータルパワーと負相 …

    Journal of Japan Association for Earthquake Engineering 19(5), 5_46-5_58, 2019

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  • Variation and Reliability of Undrained Triaxial Shear Test using In-situ Soil Specimens  [in Japanese]

    YAMAGUCHI Teruhiro , KAMURA Akiyoshi , KIM Jongkwan , KAZAMA Motoki

    <p>地盤の詳細な液状化の予測判定を行う場合,原位置からのサンプリング試料を用いて非排水繰返し試験によって土の液状化特性が評価される.原地盤そのものに不均質性,サンプリング時の乱れ,要素試験法自身の問題などのため,得られる液状化強度曲線には一定の不確実性があると考えられる.本稿では,土木研究所が実施した原位置試料による室内試験結果から液状化強度曲線の信頼性を検討した.その結果,液状化強 …

    Journal of Japan Association for Earthquake Engineering 19(5), 5_77-5_87, 2019

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  • EXTRACTION OF SIMILAR WAVEFORM BASED ON FEATURE VECTOR OF EARTHQUAKE GROUND MOTION CHARACTERISTICS  [in Japanese]

    KUSE Masumitsu , NOJIMA Nobuoto

    … それぞれ定義した.特徴ベクトルを用いて,波形相互の非類似度を評価した.振幅・周期特性の評価では,振幅特性を考慮した重みを設けることで,速度応答スペクトルのピークを重視した非類似度評価を実現した.2011年東北地方太平洋沖地震の観測記録を用いたケーススタディでは,任意の基準特徴ベクトルに対する非類似度評価を行い,非類似度の最小化に基づく波形抽出手法の妥当性について考察した.</p> …

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 75(4), I_529-I_540, 2019

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