KOMATSU Satoshi

Affiliation

Faculty of Urban Innovation, Division of Urban Innovation

Job Title

Associate Professor

Research Fields, Keywords

Energy & Power, non-destructive test, seismic engineering, earthquake engineering, concrete engineering, maintenance engineering

Mail Address

E-mail address

YNU Research Center

Research Center for Disaster Mitigation

Related SDGs




写真a

The Best Research Achievement in Research Career 【 display / non-display

The Best Research Achievement in the last 5 years 【 display / non-display

  • 【Published Thesis】 Applicability of Deformation Indices Reasonably Evaluating Load Carrying Capacity and Failure Mode of Full-Scale RC Members Subjected to Bilateral Loads(Journal of Advanced Concrete Technology)  2023.05

    【Published Thesis】 Numerical analysis on fracture behavior of full-scale RC member subjected to horizontal bilateral loadings  2021.03

    【Book】 屋外重要土木構造物の耐震性能照査指針・マニュアル・技術資料2021  2021.10

    【Published Thesis】 10MW級風車を搭載したスパー型浮体式洋上風力発電設備PRC製浮体の部分模型試験体による圧縮疲労挙動に関する分析  2022.07

    【Industrial Property Rights】 疲労試験載荷治具、疲労試験装置及び疲労試験方法  2022.10

Education 【 display / non-display

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    Yokohama National University   Department of Environment and System Sciences   Doctor Course   Completed

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    Yokohama National University   Graduated

Degree 【 display / non-display

  • Doctor of Engineering - Yokohama National University

Campus Career 【 display / non-display

  • 2022.10
     
     

    Duty   Yokohama National UniversityFaculty of Urban Innovation   Division of Urban Innovation   Associate Professor  

  • 2015.4
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    2019.3

    Duty   Yokohama National UniversityFaculty of Urban Innovation   Division of Urban Innovation   Assistant Professor  

  • 2014.3
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    2015.3

    Duty   Yokohama National UniversityFaculty of Urban Innovation   Division of Urban Innovation   Research Associate  

  • 2023.4
     
     

    Concurrently   Yokohama National UniversityInstitute for Multidisciplinary Sciences   Associate Professor  

External Career 【 display / non-display

  • 2022.10
     
     

    Central Research Institute of Electric Power Industry   Sustainable System Research Laboratory   Guest Researcher  

  • 2021.7
    -
    2022.9

    Central Research Institute of Electric Power Industry   Sustainable System Research Laboratory   Chief Researcher  

  • 2019.4
    -
    2021.6

    Central Research Institute of Electric Power Industry   Civil Engineering Laboratory   Chief Researcher  

  • 2014.1
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    2014.2

    Japan Society for the Promotion of Science   Special researcher of the Japan Society for the Promotion of Science  

  • 2013.4
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    2013.12

    Japan Society for the Promotion of Science   Special researcher of the Japan Society for the Promotion of Science  

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Academic Society Affiliations 【 display / non-display

  • 2023.1
     
     
     

    Electric Power Civil Engineering Association

  • 2017.7
     
     
     

    非破壊検査協会

  • 2015.4
     
     
     

    Japan Prestressed Concrete Institute

  • 2008
     
     
     

    日本コンクリート工学会

  • 2007
     
     
     

    土木学会

Research Areas 【 display / non-display

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Structure engineering and earthquake engineering

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Civil engineering material, execution and construction management

Qualification acquired 【 display / non-display

  • コンクリート構造診断士

  • コンクリート診断士

  • Practical English Proficiency Test (1or semi-1 or 2 class)

 

Research Career 【 display / non-display

  • Research on concrete floating for offshore wind power facility

    Project Year: 2019.4

  • Research on Continuous Fiber Reinforced Concrete Using Coal Ash as Main Raw Material

    Project Year: 2019.4

  • Research on structural safety of under ground RC box culvert in nuclear power plants

    Project Year: 2018.4

  • Study on high durability of concrete slab considering integrated water-tightness system of pavement, waterproof layer and concrete

    Project Year:

  • Investigation of time-dependent behavior of RC structure

    Project Year:

Books 【 display / non-display

  • English Summary Edition of the Japan Society of Civil Engineers (JSCE) Standard Specifications for Concrete Structure

    Takumi Shimomura, Yoshitaka Kato, Motohiro Ohno, Satoshi Komatsu, Hayato Takahashi, Tomohisa Kamada, Mechael Henry, Kazuhida Nakayama, Keitai Iwama, Luan Yao, Ryohei Yanagida, Takayuki Fukunaga, Yuji Yamada, Kazuaki Nishimura, Takeru Kanazawa, Shogo Yamamoto, Yuki Yokoyama, Kenta Takeda( Role: Joint editor)

    Japan Society of Civil Engineers (JSCE) 

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    Total pages:647   Language:English Book type:Scholarly book

  • Outlines of Guideline and Recommendation for Seismic Performance Verification of Underground Reinforced Concrete Structures in Nuclear Power Stations 2021

    JSCE( Role: Joint author)

    JSCE 

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    Language:Japanese Book type:Scholarly book

  • 示方書連絡調整小委員会(230委員会)報告書

    示方書連絡調整小委員会( Role: Joint author)

    土木学会 

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    Responsible for pages:2:6,2:32-35   Language:English Book type:Other

  • コンクリート構造物の養生効果の定量的評価と各種養生技術に関する研究小委員会

    日本土木学会( Role: Joint author)

    土木学会 

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    Total pages:122   Responsible for pages:29-33   Language:Japanese Book type:Scholarly book

  • コンクリート構造物の品質・耐久性確保マネジメント研究小委員会 成果報告書

    小松怜史、細田暁( Role: Contributor)

    土木学会 

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    Total pages:193   Responsible for pages:23-26   Language:Japanese Book type:Report

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Papers 【 display / non-display

  • Appkicability evaluation of deformation indices for verifying seismic peformance of full-scale RC members subjected to bilateral loads

    Satoshi Komatsu, Yoshinori Miyagawa, Toyofumi Matsuo

    Smirt27   2024.3  [Reviewed]

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Single Work  

  • Current Status on Enhancing Seismic Performance Verification for Underground RC Structures at NPPs in Japan

    Tofyofumi Matsuo, Keizo Ohotomo, Seiji Nagata, Satoshi Komatsu, Koichi Maekawa

    Smirt27   2024.3  [Reviewed]

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    Language:English   Publishing type:Research paper (international conference proceedings)   Single Work  

  • EXPERIMENTAL STUDY ON COMPRESSIVE FATIGUE CHARACTERISTICS OF CONCRETE FLOATING SUPPORT FOR OFFSHORE WIND PLATFORM BY USING SCALE-DOWN PARTIAL SPECIMENS

    Satoshi Komatsu, Toyofumi Matsuo, Tomohisa Miura, Tetsuya Ishikawa

    Japanese Journal of JSCE   79 ( 10 )   1 - 14   2023.10  [Reviewed]

    DOI CiNii Research

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japan Society of Civil Engineers   Joint Work  

    <p> In order to clarify the fatigue characteristics of the concrete floating of the offshore wind platform, fatigue loading tests were conducted on the small-scale partial specimens under constant compressive stress condition assuming for the service environment. As a result, the fatigue life was about 10<sup>2</sup> times shorter in water than in air, as in the past researches. In addition, when the stress-intensity ratio of the maximum amplitude was large, the fatigue life tended to be shorter at the joint than at the center. It was found that when the maximum amplitude was 70%, the fatigue life at the joint was one order shorter than that at the center. It is considered that the contact state of the joint surface has a great influence. It was confirmed that the fatigue life of PRC members (<i>f<sub>ck</sub>’</i>= 60 N/mm<sup>2</sup>) can be roughly evaluated by applying the fatigue strength formula in the JSCE specifications.</p>

  • 密な砂地盤中に構築された円形立坑の遠心載荷実験の3次元再現解析

    小松 怜史、松尾 豊史、渡部 龍正、布施 貴朗

    第78回年次学術講演会集   CS10-23   2023.9

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (research society, symposium materials, etc.)   Joint Work  

  • 洋上風力発電設備コンクリート製浮体接合部の圧縮破壊挙動に関する検討

    小松怜史、山野井悠翔、松尾豊史、山田理紗

    第30回海洋工学シンポジウム   OES30 ( A0042 )   2023.9  [Reviewed]

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (research society, symposium materials, etc.)   Single Work  

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Review Papers 【 display / non-display

  • キング・オブ・コンクリート 2022 の開催

    高橋佑弥、右田周平、澤口香織、小松怜史、柴山淳

    コンクリート工学   61 ( 6 )   554 - 559   2023.6  [Reviewed]  [Invited]

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Single Work  

  • 舗装と隣接する異種材料の相互依存性に関する研究

    小松怜史

    舗装   58 ( 5 )   5 - 10   2023.5  [Reviewed]  [Invited]

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    Authorship:Lead author, Last author, Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Single Work  

  • 洋上風力発電設備支持浮体へのプレキャストコンクリート適用

    小松怜史、松尾豊史、山田理紗、石川哲哉

    コンクリート工学   61 ( 1 )   113 - 118   2023.1  [Reviewed]  [Invited]

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    Authorship:Lead author   Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.   Single Work  

  • 電磁誘導法による鉄筋腐食促進装置の開発

    小松怜史, 金光俊徳, 松村卓郎

    コンクリート構造物の補修,補強,アップグレード論文報告集(CD-ROM)   21   2021.10

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Joint Work  

    Other Link: https://jglobal.jst.go.jp/detail?JGLOBAL_ID=202102254723961920

  • A Rule-Breaking Approach to a Better Understanding of the Method of Tests for Slump, Air Content and Compressive Strength

    Komatsu S., Kondo Y., Ikawa N., Hashimoto C.

    Concrete Journal   57 ( 6 )   433 - 440   2019

    DOI CiNii Research

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    Authorship:Lead author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)   Publisher:Japan Concrete Institute   Joint Work  

    <p>Based on the assumption that workers can be made to learn correct test methods by having them understand the importance of adhering to the work items specified in the Japanese Industrial Standards (JIS) and properly understand ing the mechanism of measuring equipment, workers were made to conduct the slump test, air content test, and compressive strength test under conditions deviating from those specified by JIS. Two types of concrete were used, with respective slump of 21 cm and 12 cm. The findings included the facts that the timing of lifting of the slump cone can decrease the measured slump value of fresh concrete by up to 3.0 cm, that the finishing method of the samples placed in the air content tester can cause the measured air content value to vary by up to 1.5%, and that tumbling of specimens prior to concrete hardening can cause reduction in compressive strength by approximately 7% by the material age of 28 days.</p><p>Based on the assumption that workers can be made to learn correct test methods by having them understand the importance of adhering to the work items specified in the Japanese Industrial Standards (JIS) and properly understand ing the mechanism of measuring equipment, workers were made to conduct the slump test, air content test, and compressive strength test under conditions deviating from those specified by JIS. Two types of concrete were used, with respective slump of 21 cm and 12 cm. The findings included the facts that the timing of lifting of the slump cone can decrease the measured slump value of fresh concrete by up to 3.0 cm, that the finishing method of the samples placed in the air content tester can cause the measured air content value to vary by up to 1.5%, and that tumbling of specimens prior to concrete hardening can cause reduction in compressive strength by approximately 7% by the material age of 28 days.</p>

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Industrial Property Rights 【 display / non-display

  • コンクリート疲労試験載荷治具、コンクリート疲労試験装置及びコンクリート疲労試験方法

    小松怜史

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    Application no:特願2022-162517  Date applied:2022.10.7

  • 腐食促進装置、及び腐食促進方法

    小松 怜史

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    Application no:特願2020- 214058号  Date applied:2020.12.23

Awards 【 display / non-display

  • 電力中央研究所 所長表彰

    2022   電力中央研究所 サステナブルシステム研究本部   原子力発電所屋外重要土木構造物の耐震性能照査技術の拡充と土木学会での標準化

    Individual or group name of awards:松尾豊史・山口和英・永田聖二・小松怜史・山野井悠翔・渡部龍正

  • 令和4年度全国大会第77回年次学術講演会優秀講演者

    2022   土木学会   接合部を有する浮体式洋上発電設備コンクリート浮体の疲労破壊挙動に関する実験的検討

    Individual or group name of awards:小松怜史

  • コンクリート工学年次論文奨励賞

    2022   日本コンクリート工学会   10MW級風車を搭載したスパー型浮体式洋上風力発電設備PRC製浮体の部分模型試験体による圧縮疲労挙動に関する分析

    Individual or group name of awards:小松 怜史

  • 土木学会構造工学委員会構造工学論文集

    2021   土木学会   水平二方向力が作用する実規模RC部材の破壊挙動の数値解析による分析

    Individual or group name of awards:小松怜史 , 永田聖二 , 松尾豊史 , 畑明仁 , 前川宏一

  • 令和2年度全国大会第75回年次学術講演会優秀講演者

    2020   土木学会   水平二方向加力でせん断破壊する実規模RC部材への三次元材料非線形有限要素法解析の適用

    Individual or group name of awards:小松 怜史

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Grant-in-Aid for Scientific Research 【 display / non-display

Other external funds procured 【 display / non-display

  • Bending Fatigue Fracture Behavior of Jointed PRC Members in Water

    2024.4 - 2025.3

    Private Foundations 

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    Authorship:Principal investigator 

  • Study on Shear Transmission Mechanism of Precast Structural Joint Surfaces with Embedded FRP Rods

    2024.4 - 2025.3

    P.S. Mitsubishi Construction 

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    Authorship:Principal investigator 

  • 「スマート防災ネットワークの構築」 E-1-1 研究開発テーマ:防災デジタルツイン自動作成による災害シミュレーション自動実行システムの構築

    2023.4 - 2028.3

    Other Ministries  戦略的イノベーション創造プログラム(SIP)

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    Authorship:Coinvestigator(s) 

  • 水中で繰り返し荷重を受けるあと施工せん断補強されたRC部材の耐荷挙動分析

    2023.4 - 2024.3

    Private Foundations 

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    Authorship:Principal investigator 

  • 地震や断層変位で損傷した地中RC構造物の貯水性能評価法の高度化

    2023.4 - 2024.3

    Private Foundations 

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    Authorship:Principal investigator 

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Presentations 【 display / non-display

  • Applicability evaluation of deformation indices for verifying seismic performance of full-scale RC members subjected to bilateral loads

    Satoshi Komatsu , Yoshinori Miyakawa and Toyofumi Matsuo

    27th International Conference on Structural Mechanics in Reactor Technology 

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    Event date: 2024.3

    Language:English   Presentation type:Oral presentation (general)  

  • 3D Behavior Analysis of Centrifuge Loading Tests on a Circular Shaft Constructed in Dense Sand

    Satoshi Komatsu, Toyofumi Matsuo, Ryuzo Watanabe, Takaaki Fuse

    The 78th Annual Convention of the Japan Society of Civil Engineers 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • Study on Compressive Failure Behavior of Concrete Floating Joints of Offshore Wind Power Generation Facilities

    Satoshi Komatsu, Yuto Yamanoi, Toyofumi Matsuo, Risa Yamada

    The 30th Symposium on Ocean Engineering 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 段差を有する道路橋ジョイント付近の防水層に生じる応力状態の分析

    小松怜史

    床版シンポジウム  土木学会鋼構造委員会

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    Event date: 2022.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン  

Preferred joint research theme 【 display / non-display

  • Study on high durability of concrete slab considering integrated water-tightness system of pavement, waterproof layer and concrete

  • 材料特性を考慮したコンクリート構造物の経時的な変形挙動に関する研究

  • 地盤・コンクリート連成での構造問題に関する研究

  • 浮体式洋上風力発電設備のコンクリート製浮体の研究・技術開発

Past of Collaboration and Commissioned Research 【 display / non-display

  • データ同化をベースとした高耐久フライアッシュコンクリート舗装についての技術研究開発

    Offer organization: 日本大学・東京大学・電力中央研究所・国交省(東北地整)   Cooperative Research within Japan  

    Project Year: 2021.4  -  2025.3 

  • 水道施設(コンクリート構造物)の長寿命化に向けた維持管理等に関する研究

    Offer organization: 横浜市水道局   Cooperative Research within Japan  

    Project Year: 2018  -  2019 

  • Study on high durability of concrete slab considering integrated water-tightness system of pavement, waterproof layer and concrete

    Cooperative Research within Japan  

    Project Year: 2017  -  2019 

  • 新型弾直軌道に関する研究

    Offer organization: 鉄道総合技術研究所   Cooperative Research within Japan  

    Project Year: 2014.4  -  2017.3 

 

Charge of on-campus class subject 【 display / non-display

  • 2024   Advanced theory of urban disaster prevention

    Graduate School of Urban Innovation

  • 2024   Urban disaster prevention

    Graduate School of Urban Innovation

  • 2024   Urban disaster prevention

    Graduate School of Urban Innovation

  • 2024   Experiment in Civil Engineering B

    College of Urban Sciences

  • 2024   Maintenance Engineering 1

    College of Urban Sciences

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Committee Memberships 【 display / non-display

  • 原子力発電環境整備機構-(一財)電力中央研究所 共同研究 「坑道の耐震性評価手法の整備」 専門家委員会

    2023.10 - 2027.3  委員

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    Committee type:Other 

  • コンクリート構造物の品質確保・長寿命化対策検討小委員会

    2023.10 - 2025.10  委員

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    Committee type:Academic society 

  • 風力発電に用いるプレストレストコンクリート製浮体の実施検討委員会

    2023.4 - 2026.3  幹事

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    Committee type:Academic society 

  • 文献調査委員会

    2023.4 - 2025.3  WG主査

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    Committee type:Academic society 

  • 都市丸ごとのシミュレーション技術研究組合

    2022.11  テクニカルアドバイザー

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    Committee type:Other 

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Social Contribution(Extension lecture) 【 display / non-display

  • 横浜市コンクリート維持補修研修会

    横浜市財務局  横浜市  2018.11 - 2019.3

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    Audience: Government agency

    Type:Seminar, workshop

  • 東京コンクリート診断士会 第2回技術セミナー

    東京コンクリート診断士会  東京  2017.10

  • 平成28年度会長特別TF「現場イノベーションプロジェクト」シンポジウム

    土木学会  2017.6

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    Type:Lecture

    パネルディスカッションにパネリストとして参加

  • 東京コンクリート診断士会 第1回技術セミナー

    東京コンクリート診断士会  東京  2016.8

  • とちぎ建設技術センター自主研修「良いコンクリートの作り方」~生コン製造から打設まで~

    2016.6

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