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Affiliation |
Faculty of Urban Innovation, Division of Urban Innovation |
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Job Title |
Lecturer |
ONISHI Naoki
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The Best Research Achievement in Research Career 【 display / non-display 】
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【Published Thesis】 EFFECTS OF DEVELOPMENT LENGTH OF BEAM BARS AND SHEAR REINFORCEMENT RATIO OF COLUMN ON EXTERIOR FOUNDATION BEAM-COLUMN JOINT WITH MECHANICAL ANCHORAGE AT BEAM BAR ENDS(Journal of Structural and Construction Engineering (Transactions of AIJ)) 2018.01
【Published Thesis】 REEVALUATION OF ULTIMATE ANCHORAGE STRENGTH EQUATION FOR 90 DEGREE HOOK IN EXTERIOR BEAM-COLUMN JOINT IN MODE OF CONCRETE BEING RAKED OUT(Journal of Structural and Construction Engineering (Transactions of AIJ)) 2016.10
【Published Thesis】 Proceedings of the Japan Concrete Institute 2019.06
Education 【 display / non-display 】
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2007.4-2010.3
The University of Tokyo Department of Architecture Doctor Course Completed
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2005.4-2007.3
The University of Tokyo Department of Architecture Master Course Completed
Degree 【 display / non-display 】
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Doctor of Engineering - The University of Tokyo
Campus Career 【 display / non-display 】
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2024.4
Duty Yokohama National UniversityFaculty of Urban Innovation Division of Urban Innovation Lecturer
External Career 【 display / non-display 】
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2017.9-2024.3
The University of Tokyo School of Engineering Assistant Professor
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2013.4-2017.8
Hokkaido University Faculty of Engineering Assistant Professor
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2010.4-2013.3
Tokyo University of Science Department of Architecture, Faculty of Science and Technology Assistant Professor
Academic Society Affiliations 【 display / non-display 】
Research Areas 【 display / non-display 】
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Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Structure engineering and earthquake engineering / Earthquake engineering
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Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Building structures and materials / Reinforced concrete
Qualification acquired 【 display / non-display 】
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Hang Up and Remove Work Skill Person
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Floor Above Operation Type Crane Skilled Person
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Architect (first class)
Research Career 【 display / non-display 】
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Elucidating Actual Stress Transfer of Headed Reinforcement and Conditions for Bond Deterioration
Grant-in-Aid for Scientific Research
Project Year： 2023.4 - 2027.3
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null
Grant-in-Aid for Scientific Research
Project Year： 2023.3 - 2024.3
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Seismic Performance Evaluation of External Beam-Column Connection at Foundation with Grade Beam and Pile
Grant-in-Aid for Scientific Research
Project Year： 2016.4 - 2020.3
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Development of drift capacity model for seismic design of reinforced concrete moment resisting frame structures
Grant-in-Aid for Scientific Research
Project Year： 2016.4 - 2019.3
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Shear Capasity Evaluation of R/C Members Considering Longitudinal Bars Cut Off, Bond, Anchorage, and Strain Rate
Grant-in-Aid for Scientific Research
Project Year： 2014.4 - 2017.3
Books 【 display / non-display 】
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Reconnaissance Report on the 2015 Nepal Gorkha Earthquake
Architectural Institute of Japan（ Role： Contributor）
null （ ISBN:9784818920491 ）
Total pages：381 Language：English Book type：Report
Thesis for a degree 【 display / non-display 】
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分散メモリ型並列計算を用いた3次元非線形有限要素法による動的応答解析手法に関する研究
大西 直毅
2010.3
Doctoral Thesis Single Work [Reviewed]
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地盤との相互作用を考慮した制震機構を有する構造物の地震応答に関する研究
大西 直毅
2007.3
Master Thesis Single Work [Reviewed]
Papers 【 display / non-display 】
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Interior Beam-Column Connections with Different Strength Ratio and Joint Hoop Reinforcement Ratio
N. Onishi,S. Tajiri,H. Shiohara
Proceedings of the 18th World Conference on Earthquake Engineering null ( null ) null - null 2024.3 [Reviewed]
Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Finite Element Analysis with Concrete Strength Parameter of RC Interior Beam-Column Connections Formed Yield Hinge
ONISHI Naoki,TAJIRI Seitaro,SHIOHARA Hitoshi
Proceedings of the Japan Concrete Institute 45 ( 2 ) 439 - 444 2023.6 [Reviewed]
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Research paper (other science council materials etc.) Joint Work
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袖壁付き柱の復元力特性の骨格曲線評価式の精度検証
田尻 清太郎,大西 直毅
コンクリート工学年次論文集 45 ( 2 ) 349 - 354 2023.6 [Reviewed]
Language：Japanese Publishing type：Research paper (other science council materials etc.) Joint Work
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鉄筋コンクリート造片側袖壁付き柱の破壊形式・判別法に関する研究
史 可擎,田尻 清太郎,大西 直毅,李 禹彤
コンクリート工学年次論文集 45 ( 2 ) 355 - 360 2023.6 [Reviewed]
Language：Japanese Publishing type：Research paper (other science council materials etc.) Joint Work
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EXPERIMENTAL STUDY ON BOND SPLIT FAILURE OF TENSION REINFORCING BARS EMBEDDED IN CONCRETE
K. Nishimura,N. Onishi,M. Kawazu
Proceedings of the 17th World Conference on Earthquake Engineering null ( ID 2c-0028 ) null - null 2020.9 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
Awards 【 display / non-display 】
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null
2019.7 Japan Concrete Institute
Individual or group name of awards：ONISHI Naoki,SHIOHARA Hitoshi
Grant-in-Aid for Scientific Research 【 display / non-display 】
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Elucidating Actual Stress Transfer of Headed Reinforcement and Conditions for Bond Deterioration
Grant number：23K04103 2023.4 - 2027.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research(C)
Investigator(s)：ONISHI Naoki
null
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Grant number：16K18179 2016.4 - 2020.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists(B)
Investigator(s)：ONISHI Naoki
Experiments were carried out on five partial frame test specimens at the foundation joint consisting of a grade beam, pile, pile cap, and external (corner) column of a reinforced concrete building. The specimens adopted headed threaded reinforcement, which has anchor plates at the end of reinforcement bars, to fix the beam reinforcement in the joint to the concrete. Headed reinforcement tends to spread cracks through the anchor plate. It is shown that the cracks passing through the anchor plate of the beam may affect the bending capacity of the column when column yielding precedes. We developed a capacity calculation model that can estimate the test results.
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null
Grant number：22K21372 2023.3 - 2024.3
Japan Society for the Promotion of Science null Grant-in-Aid for Special Purposes
Investigator(s)：KUSUNOKI Koichi
null
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Grant number：16H04446 2016.4 - 2019.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research(B)
Investigator(s)：SHIOHARA Hitoshi
Seismic tests on 18 scaled RC cantilever beams and 6 RC beam-column joint subassembladges which were designed to have ductile flexural behavior were carried out to investigate the seismic collapse safety margin and to develop a model to predict story drift capacity for RC frame buildings. It was observed commonly in the tests that the flexural component of story drift surpassing a limit value, which is a function of shear-to-span ratio, caused the reduction of dowel action of flexural compressive rebars at critical section, which capped the increase of the flexural component of story drift and further increase of shear deformation component beyond a limit which is the function of the amount of stirrups, triggered the formation of plastic buckling of axial reinforcing bar then progressive reduction of strength began.
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Grant number：26289185 2014.4 - 2017.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research(B)
Investigator(s)：NISHIMURA Koshiro
Loading tests of reinforced concrete columns and multi-layered beams, and pull out tests of tension reinforcing bars, were carried out. An influence of bond and axial force on the capacity of the member was investigated. Especially, the influence of multi-layered longitudinal bars and cut-off bars was discussed. The shear capacity formula for members failed in shear and bond splitting was improved to be applied to members with multi-layered longitudinal bars including cut-off bars. In addition, inclusive evaluation method to design the flexural members of sufficient performance was proposed; which were consideration of axial force and strain rate, checking method for bond around cut-off bars, and evaluation method of deformation capacity after flexural yielding.
Presentations 【 display / non-display 】
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Finite Element Analysis of Reinforced Concrete Beam-Column Connection with Different Amounts of Joint Transverse Reinforcement
ONISHI Naoki,SHIOHARA Hitoshi,TAJIRI Seitaro
Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan
Event date： 2022.9
Language：Japanese Presentation type：Oral presentation (general)
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INFLUENCE OF HEADED LONGITUDINAL REINFORCEMENT IN GRADE BEAM ON FLEXURAL BEHAVIOR OF COLUMN BASE
N. Onishi,K. Nishimura,Y. Yamaguchi,A. Shoji
Proceedings of the 17th World Conference on Earthquake Engineering
Event date： 2021.9 - 2021.10
Language：English Presentation type：Poster presentation
Venue：Sendai Country：Japan
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柱梁強度比と接合部横補強筋量の異なる鉄筋コンクリート造十字形接合部の破壊性状
大西 直毅,塩原 等
日本建築学会大会 一般社団法人日本建築学会
Event date： 2019.9
Language：Japanese Presentation type：Oral presentation (general)
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鉄筋コンクリート造十字形柱梁接合部の破壊性状に及ぼす接合部横補強筋の効果に関する実験的研究
大西直毅,塩原等
コンクリート工学年次論文集 日本コンクリート工学協会
Event date： 2019.7
Language：Japanese Presentation type：Oral presentation (general)
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Ultimate Strength Behavior of Exterior Footing Beam-Column-Pile Joint with Headed Main Beam Bars
ONISHI Naoki,NISHIMURA Koshiro,SHOJI Atsuya,YANAGIHARA Taihei
Proceedings of the 15th Japan Earthquake Engineering Symposium Japan Associate for Earthquake Engineering
Event date： 2018.12
Language：Japanese Presentation type：Oral presentation (general)
Charge of off-campus class subject 【 display / non-display 】
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null
2019.4 - 2019.6 Institution：The University of Tokyo
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null
2018.4 - 2023.8 Institution：The University of Tokyo
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null
2017.9 - 2024.3 Institution：The University of Tokyo
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null
2014.4 - 2017.8 Institution：Hokkaido University
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null
2013.9 - 2017.1 Institution：Hokkaido University
Committee Memberships 【 display / non-display 】
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Beam and Column Working Group
2022.4
Committee type：Academic society
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Sub-committee for RC Code Revision
2021.4
Committee type：Academic society
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Working Group on Translating RC Design Standards and Guidelines in English
2020.4
Committee type：Academic society
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null
2019.10
Committee type：Academic society
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Committee of Bulletin of JAEE
2019.4 - 2021.4
Committee type：Academic society
Academic Activities 【 display / non-display 】
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能登半島地震文教施設被害調査
Role(s)： Review, evaluation, Planning/Implementing academic research
日本建築学会 2024.2
Type：Academic research
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トルコ・シリア地震被害調査
Role(s)： Review, evaluation, Planning/Implementing academic research
日本建築学会 2023.3 - 2023.4
Type：Academic research
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北海道地震被害調査
Role(s)： Review, evaluation, Planning/Implementing academic research
2018.9
Type：Academic research
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ネパール・ゴルカ地震被害調査
Role(s)： Review, evaluation, Planning/Implementing academic research
日本建築学会 2015.5
Type：Academic research
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東日本大震災文教施設被害調査（船橋）
Role(s)： Review, evaluation, Planning/Implementing academic research
日本建築学会 2011.5
Type：Academic research