Doctor of Engineering, Hiroshima University

Structural Engineering

Bridge Engineering

2025
Associate Prof., Shinshu University

2022 - 2022
Nagano National College of Technology, Part-time lecturer

2019 - 2024
Assistant Prof., Shinshu University

2016 - 2018
Assistant Prof., Shinshu University

2016, Hiroshima University, Graduate School of Engineering, Department of Civil and Environmental Engineering

2015, Institute of Fundamental Technological Research, Polish Academy of Sciences（Visitting Student）

2013, Hiroshima University, Graduate School of Engineering, Department of Civil and Environmental Engineering

2011, Hiroshima University, Faculty of Engineering, Department of Civil and Environmental Engineering

2022
副委員長, 災害時の緊急架設を目的とした緊急仮設橋に関する調査小委員会

2020 - 2022
副委員長, 令和元年台風19号により生じた千曲川流域の橋梁被害に関する調査委員会

2020
委員, 長野国道 総合評価審査分科会

2018 - 2022
幹事, 災害時の緊急架設を目的とした緊急仮設橋に関する調査小委員会

2018
委員, 信州橋梁メンテナンス支援協議会

2024
Shinshu University, Teaching Award

2023
Japan Civil Engineering Society, Japan Civil Engineering Society Safety Symposium '23, Paper Award

2023
Japan Society of Civil Engineers, Best Presentation Award, Symposium on Structural Engineering

2022
JSCE Tyubu Branch, Speaker Award

2018
The Maeda Memorial Engineering Foundation, Kazuie Yamada Award

2017
Society for the Promotion of Construction Engineering Research, Construction Engineering Research Encouragement Award

2015
Chugoku Branch of Japan Society of Civil Engineers, Best Presentation Award for Young Scientists

2014
Hiroshima University, Excellent Student Scholarship

2014
Japan Construction Machinery Construction Association, Incentive Award

2014
Hiroshima University, Hiroshima University, Engineering and Graduate School of Engineering Student Awards

2013
12th Int. Conf. on Civil and Environmental

2013
Symposium on Construction and Construction Machinery, Best Paper Award

Effect of Diaphragm Above Concrete-Filled Part on Horizontal Load Capacity of Partially Concrete-Filled Circular Piers Subjected to Axial Forces
Yuki Chikahiro, Nguyen Thi Hong Huong, Seiya Zenzai
Buildings, 15(6), 863, 2025
Lead

Optimal p anel l ayout of m odular b ridge c onsidering its p eriodicity and truss topology optimization
Yuki Chikahiro, Tono Koike, Shota Mizuno, Masatoshi Nakazawa
Journal of structural engineering, 70(A), 192-200, Mar. 2024, Refereed
Lead, Corresponding

FACTOR ANALYSIS AND RISK ASSESSMENT OF BRIDGE DAMAGES AT TAKESHI RIVER AND YOJI RIVER BY TYHOON NO.19 IN 2019
Yuki CHIKAHIRO, Kumi OHNO, Hiroshi ICHIKI, Masashi TOYOTA
Journal of Japan Society of Civil Engineers, Ser. F6 (Safety Problem), 79(2), 23-24005, Dec. 2023, Refereed
Lead, Corresponding

Usability analysis of temporary bridge of MLIT and suggestions of code developing for emergency bridge
Masatoshi Nakazawa, Shuichi Ono, Yuki Chikahiro, Koji Kinoshita
Journal of structural engineering, 69(A), 1208-1218, Mar. 2023, Refereed

A study on the use of emergency bridge for damage to water pipe bridges
Shinichi Morimoto, Yuki Chikahiro, Ichiro Ario
Journal of structural engineering, 69(A), 1219-1226, Mar. 2023, Refereed

Recommendations on the required performance of emergency temporary bridges learned from heavy rain disasters
Tsutomu Hiraike, Ichiro Ario, Yuki Chikahiro, Shinichi Morimoto, Takanobu Sasaki
Journal of structural engineering, 69(A), 1227-1236, Mar. 2023, Refereed

History and problem of performance requirement of emergency bridge in postwar
Yuki Chikahiro, Ichiro Ario
Journal of structural engineering, 69(A), 1237-1243, Mar. 2023, Refereed
Lead, Corresponding

Damage of bridges and changes in interest level in Chikuma river basin by Typhoon No.19 in 2019
Yuki Chikahiro, Shuichi Ono
Journal of structural engineering, 69(A), 1244-1252, Mar. 2023, Refereed
Lead, Corresponding

Framework for adaptation of Bailey Bridges as a permanent bridge based on assessment of Japanese and international application cases
Koji Kinoshita, Yuki Chikahiro, Shin-ichi Kawamura, Akinori Kumada, Jun-ichi Takenaka, Hiroyuki Fujita, Masatoshi Nakazawa
Journal of structural engineering, 69(A), 1269-1279, Mar. 2023, Refereed

A STUDY ON DAMAGE OF BRIDGES AND ITS FACTOR ANALYSIS IN CHIKUMA RIVER BASIN BY TYPHOON NO.19 IN 2019
Y. Chikahiro, Y. Koike, M. Toyota, Y. Okuyama, R. Ohara, S. Shimizu
Journal of Japan Society of Civil Engineers, Ser. F6 (Safety Problem), 78(2), 131-139, 10 Feb. 2023, Refereed
Lead

Numerical Analysis of Reinforcing Effect for Scissors-Type Bridge with Strut Members
Yuki Chikahiro, Ichiro Ario
Applied Sciences, 12(24), 09 Dec. 2022, Refereed
Lead

Influence Line-Based Design of Scissors-Type Bridge
Ichiro Ario,Yuta Hama,Khongkham Chanthamanivong,Yuki Chikahiro,Akimasa Fujiwara andHaicheng Ma
Applied Sciences, 12(23), 28 Nov. 2022, Refereed
Corresponding

Estimation Equation for Horizontal Load Bearing Capacity of Circular PCFST with Diaphragm
Seiya Zenzai,Yuki Chikahiro, Shigeru Shimizu
Applied Sciences, 12(17), 29 Aug. 2022, Refereed
Corresponding

Material Cost Minimization Problem for Aluminum Alloy Beam using Beam String Structure
S. Mizuno, Y. Chikahiro, S. Koyama
Prof. of WCCM-APCOM 2022, 1-10, Jul. 2022, Refereed

Cost minimization problem for aluminum alloy girder using beam string structure
Shota Mizuno, Yuki Chikahiro, Sigeru Koyama
Journal of structural engineering, 68(A), 102-111, Mar. 2022, Refereed
Corresponding

INFLUENCE OF STIFFNERS ON BEHAVIOUR OF CONCRETE-FILLED STEEL BOX COLUMN
Seiya ZENZAI, Yuki CHIKAHIRO, Shigeru SHIMIZU, Toshiyuki OHKAMI
steel construction engineering., 28(110), 61-72, Jun. 2021, Refereed
Corresponding

Topological optimum shape of a fundamental module of the periodic structure and cantilever bridge
Masatoshi Nakazawa, Yuki Chikahiro, Ichiro Ario
Journal of structural engineering, 67(A), 90-98, Mar. 2021, Refereed

Smart design of coupling scissors-type bridge
K. Chanthamanivong, I. Ario, Y. Chikahiro
Structures, 30, 206-216, 21 Jan. 2021, Refereed

Structural analysis of a scissor structure
Ario, I. ; Yamashita, T. ; Chikahiro, Y. ; Nakazawa, M. ; Fedor, K. ; Graczykowski, C. ; Pawłowski, P.
Bulletin of the Polish Academy of Sciences: Technical Sciences, 68(6), 1319-1332, 31 Dec. 2020, Refereed

EFFECT OF DIAPHRAGM ON SEISMIC BEHAVIOUR OF PARTIALLY CONCRETE-FILLED
Seiya ZENZAI, Shigeru SHIMIZU, Yuki CHIKAHIRO, Toshiyuki OHKAMI
steel construction engineering., 26(104), 25-36, Dec. 2019, Refereed

Smart bridge developing based on micro-truss optimization method
Y. Yokotani, I. Ario, Y. Chikahiro and M. Nakazawa
Proc. of 9th ECCOMAS Thematic Conference on Smart Structures and Materials, 243-250, Jul. 2019, Refereed

Seismic performance of robotic bridge using scissors system
Y. Chikahiro, S. Zenzai, S. Shimizu, I. Ario and M. Nakazawa
Proc. of 9th ECCOMAS Thematic Conference on Smart Structures and Materials, 1648-1653, Jul. 2019, Refereed

Optimal design of largest-span bridges
I. Ario, Y. Yokotani, Y. Chikahiro, M. Nakazawa
Proc. of 9th International Conference on Steel and Aluminium Structures, 1621-1628, Jul. 2019, Refereed

Longest scissors type of deployable bridge using topology optimization by microtruss model
Y. Yokotani, I. Ario, Y. Chikahiro, M. Nakazawa
Proc. of 9th International Conference on Steel and Aluminium Structures, 1613-1620, Jul. 2019, Refereed

Optimization of reinforcement layout of scissor type bridge using differential evolution algorithm
Y. Chikahiro, I. Ario, P. Pawlowski C. Graczykowski, J. Holnicki‐Szulc
Computer-Aided Civil and Infrastructure Engineering, 34, 523-538, 20 Feb. 2019, Refereed
Lead

Behavior of a concrete-filled steel tube with diaphragm
S. Zenzai, K. Ui, S. Shimizu, Y. Chikahiro, T. Ohkami
Proc. of Stability of Structures Symposium 2018, 1-2, Sep. 2018, Refereed

Seismic behaviour of a concrete-filled steel tube with diaphragm
S. Zenzai, S. Shimizu, Y. Chikahiro, T. Ohkami
Proc. of Solid Mechanics 2018, 1-2, Aug. 2018, Refereed

Numerical optimization of deployable scissors structure with reinforcing chord members
Y. Chikahiro, I. Ario, P. Pawlowski, C. Graczykowski, S. Shimizu
Proc. of Solid Mechanics 2018, 1-2, Aug. 2018, Refereed

Dynamic analysis of scissors-type deployable pedestrian bridge under earthquake
Y. Chikahiro, S. Zenzai, S. Shimizu, I. Ario
Proc. of 9th International Conference on Bridge Maintenance, Safety and Management, 1-6, Jul. 2018, Refereed

Deployable Mobile Bridge created from Origami
I. Ario, S. Ono, I. Tanikura, Y. Chikahiro, M. Nakazawa, P. Pawlowski, C. Graczykowski, J. Holnicki-Szulc
Proc. of 9th International Conference on Bridge Maintenance, Safety and Management, 1-8, Jul. 2018, Refereed

Behavior of a concrete filled steel box column with considering detachment under seismic load
S. Zenzai, S. Shimizu, Y. Chikahiro
Thin-Walled Structures, 124, 98-106, 22 Dec. 2017, Refereed

Dynamics of the scissors-type Mobile Bridge
Y. Chikahiro, I. Ario, P. Pawlowskic, C. Graczykowski, M. Nakazawa, J. Holnicki-Szulc, S. Ono
Procedia Engineering, 199, 2919-2924, 12 Sep. 2017, Refereed
Lead

Origami-inspired debloyable and movable bridge for disaster relief
I. Ario, Y. Hama, Y. Chikahiro, K. Adachi, A. Watoson
Proc. of FootBridge2017 in Berlin, 1-9, Sep. 2017, Refereed

Fundamental study on dynamic property of deployable emergency bridge using scissors mechanism
Y. Chikahiro, I. Ario, K. Adachi, S. Shimizu, P. Pawlowski, C. Graczyokowski, J. Holnicki-Szulc
Proc. of FootBridge2017 in Berlin, 1-6, Sep. 2017, Refereed

Scissoring origami inspired deployable bridge for a disaster
K. Adachi, I. Ario, Y. Chikahiro, S. Mastumoto
Proc. of FootBridge2017 in Berlin, 1-5, Sep. 2017, Refereed

Behaviour of partially concrete-filled steel box columns under a cyclic loading
S. Zenzai, S. Shimizu, Y. Chikahiro, T. Ohkami
Proc. of 22th Computer Method in Mechanics, 1-2, Sep. 2017, Refereed

Fundamental study on dynamic property of scissoring bridge for disaster relief
Y. Chikahiro, I. Ario, K. Adachi, S. Shimizu, S. Zenzai, P. Pawlowski, C. Graczyokowski, J. Holnicki Szulc
Proc. 9th European Nonlinear Dynamics Conference, 1-2, Jul. 2017, Refereed

Structural Analysis of a Two-Unit of Scissors Structure
I. Ario, Y. Chikahiro, M. Nakazawa, J. Holnicki-Szulc, P. Pawlowski C. Graczykowski
Proc. of 40th Solid Mechanics Conference, 1-2, Sep. 2016, Refereed

Numerical Study on Reinforcement and Optimization of a Scissors Structure
Y. Chikahiro, I. Ario, M. Nakazawa, J. Holnicki-Szulc, P. Pawlowski, C. Graczykowski
Proc. of 40th Solid Mechanics Conference, 1-2, Sep. 2016, Refereed

Scissoring origami inspired deployable bridge for a disaster
K. Adachi, I. Ario, Y. Chikahiro, S. Ono
Proc. of International structural engineering and construction society, 1-6, Jul. 2016, Refereed

Experimental and numerical study of full-scale scissor type bridge
Y. Chikahiro, I. Ario, M. Nakazawa, S. Ono, J. Holnicki-Szulc, P. Pawlowski, C. Graczykowski, A. Watson
Automation in Construction, 71(2), 171-180, Jun. 2016, Refereed
Lead

Theory and Design Study of a Full-Scale Scissors-Type bridge
Y. Chikahiro, I. Ario, M. Nakazawa
Journal of Bridge Engineering, 21(9), Mar. 2016, Refereed
Lead

Evaluation and validation of mechanical property for deployable scissor bridge
Yuki Chikahiro, Ichiro Ario, Masatoshi Nakazawa and Yoshikazu Tanaka
Journal of structural engineering, 62(A), 1307-1315, 2016, Refereed
Lead

A New Type of Bridge, Mobilebridge® to Super-Quickly Recover a Bridge
I. Ario, Y. Chikahiro
World Journal of Engineering and Technology, 3(C), 170-176, 22 Oct. 2015, Refereed
Last

Study on the optimization of the reinforced scissor type bridge
Y. Chikahiro, I. Ario, J. Holnicki-Szulc, P. Pawlowski and C. Graczykowski
Proc. of PCM-CMM-2015, 319-320, Sep. 2015, Refereed

EXPERIMENTAL STUDY ON STRUCTURAL PROPERTY AND SIMPLE DESIGN METHOD OF FOLDING TYPE OF EMERGENCY BRIDGE
Yuki CHIKAHIRO, Ichiro ARIO, Syuichi ONO and Masatoshi NAKAZAWA
建設機械施工, 67(1), 89-98, 2015, Refereed
Lead

Design study on scissors type of deployable bridge based on bending experiment of extrusion materials with three - hollow section
Yuki Chikahiro, Ichiro Ario, Yoshikazu Tanaka and Masatoshi Nakazawa
Journal of structural engineering, 61(A), 23-34, 2015, Refereed
Lead

Structural Analysis and Experimental study for real-sized MB Travelable Vehicles
Y. Chikahiro, I. Ario, M. Nakazawa, S. Ono, J. Holnicki-Szulc, P. Pawlowski and C. Graczykowski
Proc. of 8th European Nonlinear Dynamics Conference, 1-2, Jul. 2014, Refereed

An experimental study on the design method of a real-sized Mobile Bridge for a moving vehicle
Y. Chikahiro, I. Ario, M. Nakazawa, S. Ono, J. Hojnicki, P. Pawlowski and C. Graczykowski
Proc. of 4th International Conference on Mobile, Adaptable and Rapidly Assembled Structures, (134), 94-103, Jun. 2014, Refereed

緊急小型車両の通行を想定した新しい緊急橋の実験的研究
近広雄希, 有尾一郎, 小野秀一, 中沢正利
平成25年度建設施工と建設機械シンポジウム論文集, 49-54, 2013, Refereed
Lead

Smart bridge design concept to rebuild up deployable bridge based on post-buckling theory
I.Ario, M.Nakazawa, Y.Chikahiro, Y.Tanaka, I.Tanikura and S.Ono
Proc. 5th Australian Small Bridges Conference, 1-6, Nov. 2011, Refereed

Design and Analysis of the Prototype of a Foldable Bridge
Y. Chikahiro, I. Ario, Y. Tanaka, M. Nakazawa, I. Tanikura and S. Ono
Proc. 5th Australian Small Bridges Conference, 1-6, Nov. 2011, Refereed

Dynamic analysis for the prototype of a new type of Mobilebridge
I. Ario, Y. Chikahiro and Y. Tanaka
Proc. of 7th European Nonlinear Dynamics Conference, 1-6, Jul. 2011, Refereed

シザーズ機構を持つモバイルブリッジの設計のための静力学的および動的応答特性の検討
有尾一郎，中沢正利，近広雄希，田中義和
安全工学シンポジウム講演予稿集, 483-486, 2011, Refereed

スマートブリッジ概念に基づく折畳み型の緊急復旧対策用モバイルブリッジ™の研究開発
近広雄希, 有尾一郎, 田中義和, 中沢正利
広島大学大学院工学研究科研究報告, 60(2), 2011
Lead

Development of the prototype of a new emergency bridge based on the concept of optimized structure
I.Ario, Y.Tanaka, M.Nakazawa, Y.Furukawa, Y.Chikahiro, I.Tanikura, S.Ono
Proc. of 6th of China-Japan-Korea Joint Symposium on Optimization of Structural and Mechanical Systems, 1-10, Jul. 2010, Refereed

災害復旧・救助を想定した移動して折畳める橋「モバイルブリッジTM」の架設実験
有尾一郎, 田中義和, 中沢正利, 近広雄希, 作野裕司, 椿涼太, 谷倉泉, 小野秀一, 古川祐輔
安全問題研究論文集, 5, 127-132, 2010, Refereed

シザーズ機構を持つモバイルブリッジの架設動的実験とその解析
古川祐輔・有尾一郎・田中義和・近広雄希・作野裕司・椿涼太
広島大学大学院工学研究科研究報告, 59(1), 2010

Development of the prototype of a new emergency bridge based on the concept of optimized structure
Ichiro ARIO, Yoshikazu TANAKA, Masatoshi NAKAZAWA, Yusuke FURUKAWA, Yuki CHIKAHIRO
構造工学論文集, 56(A), 1-12, 2010, Refereed

シザーズ構造の力学特性に関する研究
池畑雄太, 森田千尋, 有尾一郎, 濱優太, 近広雄希
第5回九州橋梁・構造工学研究会シンポジウム論文集, 71-77, 2017

モバイルブリッジに架橋後の補剛・補強化手法
安達光太郎, 有尾一郎, 近広雄希
第7回インフラ・ライフライン減災対策シンポジウム講演集, 78-83, 2016

Optimal Reinforcement of Scissor Type of Bridge with Additional Strut Members
Y. Chikahiro, I. Ario, J. Holnicki-Szulc, P. Pawlowski, C. Graczykowski
Proc. of International Conference of Civil & Environmental Engineering(ICCEE2016), 78-79, 2016
http://tsys.jp/iccee/2016/program/program.html

Structural Mechanics for Reinforced Scissors Structures by Reinforced Struts
K. Adachi, I. Ario, Y. Chikahiro
Proc. of International Conference of Civil & Environmental Engineering(ICCEE2016), 84-85, 2016

Experimental Study of a New Emergency Bridge for Small Emergency Vehicle Traffic (JCMA Report)
Chikahiro, Yuki; Ario, Ichiro; Ono, Shuichi; Nakazawa, Masatoshi
Journal of Japan Construction Machinery and Construction Association, 66(9), 96-100, Sep. 2014

Experimental Study of a New Emergency Bridge for Small Emergency Vehicle Traffic (JCMA Report)
Chikahiro, Yuki; Ario, Ichiro; Ono, Shuichi; Nakazawa, Masatoshi
Journal of Japan Construction Machinery and Construction Association, 66(1), 89-95, Jan. 2014

緊急小型車両の通行を想定した新しい緊急橋の実験的研究
平成25年度建設施工と建設機械シンポジウム論文集, 469-54, 2013

Development of Prototype of Real-scaled Mobile bridgeTM as a Smart Bridge for Dynamic Carriage Loadings
I. Ario, Y. Chikahiro, S. Matsumoto, Y. Tanaka, M. Nakazawa, S. Ono
Proc. of Dynamics, stability and control of flexible structure, 1, 2013

Structural analysis and experimental study for MB travelable vehicles
Y. Chikahiro, I. Ario
Proc. of the 12th International Conference on Civil and Environmental Engineering, 102-107, 2013

The Design of Emergency Bridges with Scissors Structures
Y. Chikahiro, I. Ario
Proc. of the 10th International Conference on Civil and Environmental Engineering, 2011

シザーズ機構を持つモバイルブリッジの設計のための静力学的および動的応答特性の検討
有尾一郎，中沢正利，近広雄希，田中義和
安全工学シンポジウム講演予稿集, 483-486, 2011

高効率で折畳める橋構造物の開発研究(解析編)
有尾一郎, 田中義和, 中沢正利, 古川祐輔, 近広雄希
第25回 宇宙構造・材料シンポジウム, 104-107, 2009

高効率で折畳める橋構造物の開発研究(実験編)
田中義和, 有尾一郎, 中沢正利, 古川祐輔, 近広雄希
第25回 宇宙構造・材料シンポジウム, 108-111, 2009

Report on Emergency Bridges for Emergency Erection after Natural Disasters
Contributor
Mar. 2020

シザーズ構造のピボット近傍に生じる応力集中とその推定に関する基礎的研究
Yugo Okada, Y. Chikahiro
令和6年度土木学会中部支部研究発表会, Mar. 2025

円形断面鋼製橋脚のコンクリート充填修復に関する解析的検討
市川幸大郎, 近広雄希
令和6年度土木学会中部支部研究発表会, Mar. 2025

シザーズ構造のピボット近傍に生じる応力集中とその推定に関する試み
Yugo Okada, Y. Chikahiro
令和6年度土木学会全国大会, Sep. 2024

Optimal panel layout of modular-type emergency bridge considering its periodicity
Y. Chikahiro, S. Mizuno
Proc. of the 26th International Congress of Theoretical and Applied Mechanics (ICTAM 2024), Aug. 2024

Fundamental Study for Fabrication of Panel Bridge Pin Joints Using FDM 3D Printer
Haruto Sengoku, Yuki Chikahiro
civil engineering society central branch research meeting, Mar. 2024

Effect of Panel Layout and Member Stiffness on Mechanical Properties of Folding Panel Bridges
Kumi Ohno, Yuki Chikahiro
civil engineering society central branch research meeting, Mar. 2024

Estimation on Natural Frequency of Scissors-Type Bridge and Its Validation with Hammering Test
Yuki Chikahiro, Ichiro Ario
2nd Global Meet on Civil, Structural and Environmental Engineering (GMCSEE2023), Oct. 2023, Invited

Extremely modular Arm-Z manipulator
Zawidzka Ela, Yuki Chikahiro, Ichiro Ario
令和5年度土木学会全国大会, Sep. 2023

Performance Evaluation of Aluminum Alloy Tensioned Truss Bridges Using Parametric Analysis
iriiroshi Ichiki, Yuki Chikahiro
令和5年度土木学会全国大会, Sep. 2023

Effect of Pin Joint Geometry on Ultimate Behavior of Modular Bridges
Yu Koike, Yuki Chikahiro
civil engineering society central branch research meeting, Mar. 2023

Influence of deck position on seismic behaviour of scissors bridge
Tomoto Kometani, Yuki Chikahiro
第77回 土木学会全国大会, Sep. 2022

Optimum form of aluminium alloy tension girders based on material cost minimisation
Shota Mizuno, Yuki Chikahiro
第77回 土木学会全国大会, Sep. 2022

Influence of Position of Decks on Seismic Behaviour of Scissors-type Bridge
Y. Chikahiro, T. Kometani, I. Ario
WCCM-APCOM 2022, Jul. 2022

Finite Element Analysis at Pin Joints of Modular Bridge under Uniaxial Tensile Loads
Y. Koike, Y. Chikahiro, M. Nakazawa, I. Ario
WCCM-APCOM 2022, Jul. 2022

Finite Element Analysis of Load Capacity of Panel Bridge with Multi-Scissors Structure
K. Ohno, Y. Chikahiro
WCCM-APCOM 2022, Jul. 2022

Stiffener effect on CFST under cyclic load
S. Zenzai, S. Shigeru, Y. Chikahiro, T. Ohkami
4th Polish Congress of Mechanics and the 23rd International Conference on Computer Methods in Mechanics, Sep. 2019

Finite analysis for the periodic scissors structure
I. Ario, T. Yamashita1, Y. Chikahiro and M. Nakazawa
4th Polish Congress of Mechanics and the 23rd International Conference on Computer Methods in Mechanics, Sep. 2019

Seismic performance of robotic bridge using scissors system
Y. Chikahiro, S. Zenzai, S. Shimizu, I. Ario and M. Nakazawa
4th Polish Congress of Mechanics and the 23rd International Conference on Computer Methods in Mechanics, Jul. 2019

Seismic behaviour of a concrete-filled steel tube with diaphragm
S. Zenzai, S. Shimizu, Y. Chikahiro, T. Ohkami
The 41th Solid Mechanics Confrence, Aug. 2018

Deployable Mobile Bridge created from Origami
I. Ario, S. Ono, I. Tanikura, Y. Chikahiro, M. Nakazawa, P. Pawlowski, C. Graczykowski, J. Holnicki-Szulc
9th International Conference on Bridge Maintenance, Safety and Management, Jul. 2018

FUNDAMENTAL STUDY ON DYNAMIC PROPERTY OF DEPLOYABLE EMERGENCY BRIDGE USING SCISSORS MECHANISM
Y. Chikahiro, I. Ario, K. Adachi, S. Shimizu, P. Pawlowski, C. Graczyokowski, J. Holnicki-Szulc
Footbridge 2017 Berlin - Tell A Story, Sep. 2017

NUMERICAL STUDY ON REINFORCEMENT AND OPTIMIZATION OF A SCISSORS STRUCTURE
Y. Chikahiro, I. Ario, M. Nakazawa, J. Holnicki-Szulc, P. Pawlowski, C. Graczykowski
The 40th Solid Mechanics Confrence, Aug. 2016

Study on theoptimization of the reinforced scissor type bridge
Y. Chikahiro, I. Ario, J. Holnicki-Szulc, P. Pawlowski, C. Graczykowski
PCM-CMM-2015, Sep. 2015

An Experimental Study On The Design Method Of A Real-sized Mobile Bridge For A Moving Vehicle
Y. Chikahiro, I. Ario, M. Nakazawa, S. Ono, J. Holnicki-Szulc, P. Pawlowski, C. Graczykowski
International Conference on Mobile, Adaptable and Rapidly Assembled Structures, Jun. 2014

New Bridge Design and Analysis of the Prototype of a Foldable Bridge
Y. Chikahiro, I. Ario, Y. Tanaka, M. Nakazawa, I. Tanikura and S. Ono
5TH Australian Small Bridges Conference, Nov. 2012

Dynamic analysis for the prototype of a new type of Mobilebridge
I. Ario, Y. Chikahiro and Y. Tanaka
7th European Nonlinear Dynamics Conference, Jul. 2011

DYNAMIC VIBRATION OF A PROTOTYPE DEPLOYABLE BRIDGE BASED ON MFM
Y.Furukawa, I.Ario, Y.Tanaka, Y.Chikahiro, S.Matsumoto, M.Nakazawa, I.Tanikura and S.Ono
9th World Congress on Computational Mechanics and 4th Asian Pacific Congress on Computational Mechanics, Jul. 2010

Structural mechanics
2022 - 2022
National Institute of Technology, Nagano College

Experiment in Civil Engineering
2024
Shinshu University

Practice in Design and Drawing of Construction Structures I
2017 - 2024
Shinshu University

Practice in Design and Drawing of Construction Structures II
2017 - 2022
Shinshu University

Structural mechanics
2020
Shinshu University

Practince in Structural Engineering
2023
Shinshu University

Bridge Engineering
2017 - 2023
Shinshu University

Steel Structure and Bridge Engineering
2024
Shinshu University

Advanced Bridge Engineering
2017
Shinshu University

Earth Science Experiment
2020 - 2022
Shinshu University

Japanese Society of Civil Engineering

北陸地域づくり協会, 木製パネル橋開発に向けたFDM方式3Dプリンタ造形物の解析技術の高度化
2024 - 2025

シザーズ型緊急橋のピン接合部の応力集中緩和に向けた理論的検討
科学研究費補助金, 若手研究
2023 - 2026

大成学術財団, シザーズ機構を用いた災害用折畳みパネル橋の最適パネル形態に関する研究
2023 - 2024

外国人招へい研究者(短期), 招へい研究者：施明祥教授(国立曁南国際大学), FDM方式3Dプリンタを用いた造形物の解析精度向上に向けた基礎的検討
台湾
2023 - 2023

関東地域づくり協会, 3Dプリンタを用いた木製パネル橋のピン接合部の試作
2023 - 2023

公益財団法人河川財団，令和元年東⽇本台⾵の千曲川流域における橋梁被害とその要因分析
2022 - 2022

公益財団法人 TAKEUCHI育英奨学会，シザーズ型緊急橋への適用を目的とした 曲げと軸力作用下における有孔アルミニウム押出型材の最適形状設計
2021 - 2021

長野県科学技術振興会，位相最適化による材料コストを意識したアルミニウム張弦橋の創造（対象：指導学生）
2021 - 2021

外国人招へい研究者(短期), 招へい研究者：施明祥教授(国立曁南国際大学), デジタル画像相関法を用いたシザーズ型緊急橋の応力集中評価とその可視化
台湾
2020 - 2022

信州大学工学部若里会, 材料コストを考慮したアルミニウム張弦橋の最適形態の創造と体系化
2020 - 2020

トラス化を意識したシザーズ型緊急橋の補強対策が耐震性向上に与える影響
科学研究費補助金, 若手研究
2018 - 2020

形状最適化アプローチに基づいたカンチレバー形式モジュール橋梁構造の設計と試作
科学研究費補助金, 挑戦的研究(萌芽)
2018 - 2020

一般財団法人防災研究協会，基礎工事なしに展開架橋できる新しい吊橋の試作とその実験的評価
2017 - 2018

公益財団法人山口育英奨学会，シザーズ機構を応用した伸縮可能な緊急仮設橋の基礎振動特性に関する実験的研究
2017 - 2017

日本学術振興会（JSPS），二国間交流事業，Study of structural optimization and reinforcement of the Mobile Bridge
IPPT-PAN(ポーランド)
2016 - 2017

災害被災地への迅速架橋を目的としたシザーズ型緊急橋の耐震安全性評価
科学研究費補助金, 研究活動スタート支援
2016 - 2017

公益財団法人浦上奨学会，海外留学奨学生
2015 - 2015

シザーズ構造のパネルユニット、伸縮パネルおよびパネル型シザーズ橋, 2022038977, Patent right
近広雄希

シザーズ式伸縮構造 , 2015556302, Patent right
有尾一郎，田中義和，近広雄希，中谷伸，谷倉泉，小野秀一，赤松俊治，佐藤隆夫，花木悟，中村繁央

2024, 東京都市大学塩尻高等学校に対して「橋梁とその基本構造を学ぼう」の模擬講義
2024

2024, 大学見本市2024～イノベーション・ジャパンにて「畳んで運んで現場で橋に！縦横に伸縮するパネルユニット」の紹介
2024

2023, 裾花中学校に対して橋梁工学に関する模擬講義
2023

2023, 東邦高等学校に対して橋梁工学に関する模擬講義
2023

2022, 関東地方防災エキスパート長野支部講演会にて「自然災害後の橋の応急復旧活動」の講演
2022

2022, 松本蟻ケ崎高校にて「橋と自然災害」の模擬講義
2022

2022, 産業フェアin信州2022にて災害復旧用緊急橋を紹介
オンライン, 2022

2022, 夢ナビライブ2022 in Autumnにて「人々の生活を一刻も早く日常に戻す、橋の復旧工学」の講演
2022

2022, 長野しんきんビジネスフェアにて災害復旧用緊急橋を紹介
2022

2021, 関東地方防災エキスパート長野支部講演会にて「自然災害後の橋の応急復旧活動」の講演
2021

2021, 松本蟻ケ崎高校にて「橋と自然災害」の模擬講義
2021

2017, 2017防災産業展in東京に出展
2017

被災現場などで活躍する緊急仮設橋用の「シザーズ構造伸縮パネル」を開発
信州大学広報誌「信大NOW」, 2025

特許映像シリーズVol.12　コンパクトに運搬！被災現場でも活躍できる「シザーズ構造伸縮パネル」の開発！
信州大学動画チャンネル, 2024

2024, 4, 0

2023, 4, 2

2022, 3, 1

2021, 3, 2

2020, 3, 1

2019, 3, 1, 1

2018, 3, 0

2017, 3, 0

2016, 1, 0