Researchers Information System

日本語に切り替えるswitch to english

Chang, Kaichun

Graduate School of Engineering, Division of Civil and Earth Resources Engineering Associate Professor

Chang, Kaichun
list
    Last Updated :2025/03/29

    Basic Information

    Faculty

    • Faculty of Engineering
    • Institute for Liberal Arts and Sciences

    Email Address

    • Email Address

      chang.kaichun.4zkyoto-u.ac.jp

    ID,URL

    researchmap URL

    Academic Degree

    • Ph.D. (National Taiwan University)

    Academic Resume (Graduate Schools)

    • National Taiwan University, Department of Civil Engineering, Master Course
    • National Taiwan University, Department of Civil Engineering, Ph.D. Course

    Research History

    • From Mar. 2024, To Present
      Kyoto University, Graduate School of Engineering Department of Civil and Earth Resources Engineering, Associate Professor
    • From Sep. 2015, To Feb. 2024
      Kyoto University, Graduate School of Engineering Department of Civil and Earth Resources Engineering, Jr. Associate Professor
    • From Oct. 2014, To Sep. 2015
      Kyoto University, Graduate School of Engineering Department of Civil and Earth Resources Engineering, Specified Researcher, Specified Assistant Professor
    • From Aug. 2011, To Sep. 2014
      Kyoto University, Graduate School of Engineering Department of Civil and Earth Resources Engineering, Visiting Research Fellow, JSPS Post-doctoral Research Fellow

    Language of Instruction

    • English
    • Japanese
    list
      Last Updated :2025/03/29

      Research

      Research Interests

      • Damage Detection
      • Vibration Measurement
      • Structural Health Monitoring
      • Bridge Vibrations
      • Bridge Engineering
      • Structural Engineering
      • Dynamics of Structures

      Research Areas

      • Social infrastructure (civil Engineering, architecture, disaster prevention), Structural and seismic engineering
      • Social infrastructure (civil Engineering, architecture, disaster prevention), Civil engineering (materials, implementation, construction management)

      Papers

      • A framework specialized for large-scale vehicle–bridge interaction simulation
        Zhuoran Han; Chul-Woo Kim; Kai-Chun Chang
        Computers & Structures, Sep. 2024, Peer-reviewed, Last author
      • A data-driven methodology for bridge indirect health monitoring using unsupervised computer vision
        A. Calderon Hurtado; M. Makki Alamdari; E. Atroshchenko; K.C. Chang; C.W. Kim
        Mechanical Systems and Signal Processing, Mar. 2024, Peer-reviewed
      • Damage detection of truss bridge elements using an enhanced pseudo-local flexibility method
        Ting-Yu Hsu; Meng-Chen Lu; I-Tung Yang; Chul-Woo Kim; Kai-Chun Chang
        Journal of Civil Structural Health Monitoring, 06 Dec. 2023, Peer-reviewed, Last author
      • Bridge Frequency Identification Using Cross-Power Spectra of Vehicle Vibrations from Multiple Moving Speeds
        Xuzhao Lu; Chul-Woo Kim; Kai-Chun Chang; Zhuoran Han; Limin Sun
        International Journal of Structural Stability and Dynamics, 19 Oct. 2023, Peer-reviewed
      • Unsupervised learning-based framework for indirect structural health monitoring using adversarial autoencoder
        A. Calderon Hurtado; K. Kaur; M. Makki Alamdari; E. Atroshchenko; K.C. Chang; C.W. Kim
        Journal of Sound and Vibration, Apr. 2023, Peer-reviewed
      • A drive-by bridge inspection framework using non-parametric clusters over projected data manifolds
        P. Cheema; M. Makki Alamdari; K.C. Chang; C.W. Kim; M. Sugiyama
        Mechanical Systems and Signal Processing, Nov. 2022, Peer-reviewed
      • Low-Power Frequency Monitoring System for Bridge Using MEMS Vibrational-Energy Harvesting Sensor
        K.C. Chang
        IEEJ Transactions on Sensors and Micromachines, 01 Jul. 2022, Peer-reviewed
      • Monitoring the Condition of Narrow Bridges Using Data from Rotation-Based and Strain-Based Bridge Weigh-in-Motion Systems
        F. Huseynov; D. Hester; E. J. OBrien; C. McGeown; C.-W. Kim; K. Chang; V. Pakrashi
        Journal of Bridge Engineering, Jul. 2022, Peer-reviewed
      • Vibration-based Bayesian model updating of an actual steel truss bridge subjected to incremental damage
        Xin Zhou; Chul-Woo Kim; Feng-Liang Zhang; Kai-Chun Chang
        Engineering Structures, Jun. 2022, Peer-reviewed, Last author
      • Dynamic responses of a vehicle–bridge–soil interaction system subjected to stochastic-type ice loads
        Tianyu Wu; Wenliang Qiu; Chul-Woo Kim; Kai-Chun Chang; Xuzhao Lu
        Structure and Infrastructure Engineering, 2023, Peer-reviewed
      • Electrostatic micro-electro-mechanical system vibrational energy harvesters for bridge damage detection
        Kai-Chun Chang; Katsufumi Hashimoto; Hiroyuki Mitsuya; Tomoki Shiotani
        The Rise of Smart Cities, 2022, Lead author
      • Transmissibility performance assessment for drive-by bridge inspection
        M.M. Alamdaria, K.C. Chang, C.W. Kim, K. Kildashtic, H. Kalhori
        Engineering Structures, Sep. 2021, Peer-reviewed
      • MEMS Vibrational Power Generator for Bridge Slab and Pier Health Monitoring
        Katsufumi Hashimoto; Tomoki Shiotani; Hiroyuki Mitsuya; Kai-Chun Chang
        Applied Sciences, 21 Nov. 2020, Peer-reviewed, Last author
      • Longitudinal Seismic Response of Train-Bridge Interaction System With Slip in Moderate Earthquakes
        12. X. Lu, C.W. Kim, K.C. Chang
        ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering, 01 Sep. 2020, Peer-reviewed, Last author
      • Finite Element Analysis Framework for Dynamic Vehicle-Bridge Interaction System Based on ABAQUS
        Xuzhao Lu; Chul-Woo Kim; Kai-Chun Chang
        International Journal of Structural Stability and Dynamics, Mar. 2020, Peer-reviewed, Last author
      • Bridge Damage Detection Using Rotation Measurements – Experimental Validation
        F. Huseynov; C. Kim; E.J. OBrien; J.M.W. Brownjohn; D. Hester; K.C Chang
        Mechanical Systems and Signal Processing, Jan. 2020, Peer-reviewed, Last author
      • Discussion on the Roadway Roughness Profile Identification Methods Utilizing Acceleration Measured on a Moving Vehicle
        Soichiro HASEGAWA; Chul-Woo KIM; Naoya TOSHI; Kai-Chun CHANG
        Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM)), 2020, Peer-reviewed, Last author
      • Estimation of bridge surface profile from moving vehicle accelerations by means of moving force identification - an experimental field study
        K.C. Chang
        International Journal of Lifecycle Performance Engineering, 2019, Peer-reviewed, Lead author
      • Flow analysis and damage assessment for concrete box girder based on flow characteristics
        Ye, X.-F.; Chang, K.-C.; Kim, C.-W.; Ogai, H.; Oshima, Y.; Vera, O.S.L.
        Sustainability (Switzerland), 2019, Peer-reviewed
      • Nonlinear dynamic response analysis of vehicle–bridge interactive system under strong earthquakes
        Borjigin, S.; Kim, C.-W.; Chang, K.-C.; Sugiura, K.
        Engineering Structures, 2018, Peer-reviewed
      • In situ Ultrasonic Method for Estimating Residual Tension of Wedge Fix Type Anchors
        S.B. Tamrakar; H. Asaue; T. Shiotani; K.C. Chang; Y. Fujiwara
        Construction and Building Materials, 2018, Peer-reviewed
      • Utilizing Moving Vehicles as Sensors for Bridge Condition Screening-A Laboratory Verification
        Chul-Woo Kim; Kai-Chun Chang; Patrick John McGetrick; Shinichi Inoue; Souichiro Hasegawa
        SENSORS AND MATERIALS, 2017, Peer-reviewed
      • A Feasibility Study on Crack Identification Utilizing Images Taken from Camera Mounted on a Mobile Robot
        C. W. Kim; K. C. Chang; Y. Sasaka; Y. Suzuki
        STRUCTURAL HEALTH MONITORING - FROM SENSING TO DIAGNOSIS AND PROGNOSIS, 2017, Peer-reviewed
      • Modal-parameter identification and vibration-based damage detection of a damaged steel truss bridge
        Kai-Chun Chang; Chul-Woo Kim
        ENGINEERING STRUCTURES, Sep. 2016, Peer-reviewed, Lead author
      • A field experiment on a steel Gerber-truss bridge for damage detection utilizing vehicle-induced vibrations
        Chul-Woo Kim; Kai-Chun Chang; Sotaro Kitauchi; Patrick J. McGetrick
        STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL, Mar. 2016, Peer-reviewed
      • Hybrid elastic-wave CT with impact acoustics for single-side measurement in concrete structures
        Tomoki Shiotani; Yoshikazu Kobayashi; Kai-Chun Chang
        CONSTRUCTION AND BUILDING MATERIALS, Jun. 2016, Peer-reviewed, Last author
      • Numerical Investigations of Vibration-Based Damage Detection in a Steel Truss Bridge
        R.M. Wanjala; C.W. Kim; K.C. Chang
        Proceedings of Constructional Steel, 2015, Peer-reviewed
      • Non-linear seismic response analysis of vehicle-bridge interactive systems
        S. Borjigin; C.W. Kim; K.C. Chang; K. Sugiura
        Steel Construction - Design and Research, 2015, Peer-reviewed
      • Modal parameters identification of a single-span steel-truss bridge and influence of damage on modal parameters
        C.W. Kim; S. Kitauchi; K.C. Chang; Y. Oshima; K. Sugiura
        Proceedings of Structural Engineering, 2014, Peer-reviewed
      • Anomaly detection from changes in statistical patterns of structural dynamic characteristics of a simply supported steel-truss bridge
        C.W. Kim; K.C. Chang; S. Kitauchi
        Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics), 2014, Peer-reviewed
      • Variability in bridge frequency induced by a parked vehicle
        K. C. Chang; C. W. Kim; Sudanna Borjigin
        SMART STRUCTURES AND SYSTEMS, May 2014, Peer-reviewed, Lead author
      • Constructing the mode shapes of a bridge from a passing vehicle: a theoretical study
        Y. B. Yang; Y. C. Li; K. C. Chang
        SMART STRUCTURES AND SYSTEMS, May 2014, Peer-reviewed, Last author
      • Feasibility investigation for a bridge damage identification method through moving vehicle laboratory experiment
        Kai-Chun Chang; Chul-Woo Kim; Mitsuo Kawatani
        STRUCTURE AND INFRASTRUCTURE ENGINEERING, Mar. 2014, Peer-reviewed, Lead author
      • Filtering techniques for extracting bridge frequencies from a test vehicle moving over the bridge
        Y. B. Yang; K. C. Chang; Y. C. Li
        ENGINEERING STRUCTURES, Mar. 2013, Peer-reviewed
      • Identifying Dynamic Characteristics of a Short-span Viaduct from Vehicle-induced Vibrations Considering Different Pavement and Parapet Conditions
        K. C. Chang; C. W. Kim
        DAMAGE ASSESSMENT OF STRUCTURES X, PTS 1 AND 2, 2013, Peer-reviewed, Lead author
      • FREQUENCY VARIATION IN VEHICLE-BRIDGE INTERACTION SYSTEMS
        Y. B. Yang; M. C. Cheng; K. C. Chang
        INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS, Mar. 2013, Peer-reviewed, Last author
      • Effect of Road Surface Roughness on the Response of a Moving Vehicle for Identification of Bridge Frequencies
        Y. B. Yang; Y. C. Lee; K. C. Chang
        Interaction and Multiscale Mechanics, 2012, Peer-reviewed, Last author
      • Using two connected vehicles to measure the frequencies of bridges with rough surface: a theoretical study
        Y. B. Yang; Y. C. Li; K. C. Chang
        ACTA MECHANICA, Aug. 2012, Peer-reviewed, Last author
      • On applicability of Hilbert-Huang transform for vibration analysis of a two-member truss
        Yang, Y.B.; Chen, C.T.; Chang, K.C.
        IES Journal Part A: Civil and Structural Engineering, 2012, Peer-reviewed, Last author
      • Disk model for wheels moving over highway bridges with rough surfaces
        K. C. Chang; F. B. Wu; Y. B. Yang
        JOURNAL OF SOUND AND VIBRATION, Sep. 2011, Peer-reviewed, Lead author
      • Effect of Road Surface Roughness on Indirect Approach for Measuring Bridge Frequencies from a Passing Vehicle
        K.C. Chang; F.B. Wu; Y.B. Yang
        Interaction and Multiscale Mechanics, 2010, Peer-reviewed, Lead author
      • Extracting the bridge frequencies indirectly from a passing vehicle: Parametric study
        Y. B. Yang; K. C. Chang
        Engineering Structures, Oct. 2009, Peer-reviewed, Last author
      • Extraction of bridge frequencies from the dynamic response of a passing vehicle enhanced by the EMD technique
        Y. B. Yang; K. C. Chang
        Journal of Sound and VIbration, May 2009, Peer-reviewed, Last author
      • Ambient and Vehicle-Induced Vibration Data of a Steel Truss Bridge Subject to Artificial Damage
        Chul-Woo Kim; Feng-Liang Zhang; Kai-Chun Chang; Patrick John McGetrick; Yoshinao Goi
        Journal of Bridge Engineering, Jul. 2021, Peer-reviewed
      • ON THE APPLICABILITY OF HILBERT-HUANG TRANSFORM FOR ANALYSIS OF A TWO-MEMBER TRUSS IN VIBRATION
        Y. B. Yang; C. T. Chen; K. C. Chang
        PROCEEDINGS OF THE IJSSD SYMPOSIUM 2012 ON PROGRESS IN STRUCTURAL STABILITY AND DYNAMICS, 2012, Peer-reviewed, Last author
      • ROAD PROFILE IDENTIFICATION BY MEANS OF REGULARIZED LEAST SQUARE MINIMIZATION WITH DYNAMIC PROGRAMMING UTILIZING ACCELERATIONS OF A MOVING VEHICLE
        Soichiro HASEGAWA; Chul-Woo KIM; Kai-Chun CHANG
        Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)), 2022, Peer-reviewed, Last author

      Misc.

      • VEHICLE AND TRUSS BRIDGE INTERACTION ADOPTING A SIMPLIFIED 2D MODEL
        SHAHED JAFARPOUR JAFARPOUR HAMEDANI; MEHRISADAT MAKKI ALAMDARI; ELENA ATROSHCHENKO; KAI-CHUN CHANG; CHUL-WOO KIM; ANDRES FELIPE CALDERON HURTADO
        Proceedings of the 14th International Workshop on Structural Health Monitoring (IWSHM 2023), 12 Sep. 2023, Peer-reviewed
      • Bridge Response Fusion Drive-by-Bridge Inspection by Means of Model Updates
        Yano Yukihiro; Soichiro Hasegawa; Chul-Woo Kim; Kai-Chun Chang
        Experimental Vibration Analysis for Civil Engineering Structures (EVACES 2023 ), Lecture Notes in Civil Engineering, 29 Aug. 2023, Peer-reviewed, Last author
      • An Unsupervised Learning Method for Indirect Bridge Structural Health Monitoring
        Andres Calderon Hurtado; Mehrisadat Makki Alamdari; E. Atroshchenko; Kai-Chun Chang; Chul-Woo Kim
        Experimental Vibration Analysis for Civil Engineering Structures (EVACES 2023 ), Lecture Notes in Civil Engineering, 29 Aug. 2023, Peer-reviewed
      • A Drive-by Bridge Damage Localisation Method with an Instrumented Vehicle
        Xuzhao Lu; Limin Sun; Chul-Woo Kim; Kai-Chun Chang; Zhuoran Han
        Experimental Vibration Analysis for Civil Engineering Structures (EVACES 2023 ), Lecture Notes in Civil Engineering, 29 Aug. 2023, Peer-reviewed
      • Bridge abnormality detection utilizing acceleration of a moving vehicle
        S. Hasegawa; C.W. Kim; K.C. Chang; Y. Zhang
        Proceedings of the 14th International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP14), Jul. 2023, Peer-reviewed
      • Bridge indirect monitoring using Uniform Manifold Approximation and Projection (UMAP)
        P. Cheema; M.M. Alamdari; K.C. Chang; C.W. Kim; M. Sugiyama
        Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability (Proceedings of the Eleventh International Conference on Bridge Maintenance, Safety and Management (IABMAS 2022), 2022, Peer-reviewed
      • Bridge damage detection utilizing dynamic force obtained from moving vehicle acceleration
        S. Hasegawa; C.W. Kim; K.C. Chang; N. Toshi
        Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability (Proceedings of the Eleventh International Conference on Bridge Maintenance, Safety and Management (IABMAS 2022), 2022, Peer-reviewed
      • Bridge frequency identification from multiple moving-vehicle dynamics using cross-spectrum method
        Xuzhao Lu; Limin Sun; Chul-Woo Kim; Kai-Chun Chang; Zhuoran Han
        Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability (Proceedings of the Eleventh International Conference on Bridge Maintenance, Safety and Management (IABMAS 2022), 2022, Peer-reviewed
      • Structural Health Monitoring of Bridges Using Dynamic Vehicle Force
        Souichirou Hasegawa; Yukihiro Yano; Chul-Woo Kim; Kai-Chun Chang
        European Workshop on Structural Health Monitoring (EWSHM 2022 ). Lecture Notes in Civil Engineering, 19 Jun. 2022, Peer-reviewed, Last author
      • Damage Detection and Localization for Indirect Bridge Monitoring Exploiting Adversarial Autoencoder and Wavelet Transform
        Kirandeep Kaur; Mehri Makki Alamdari; Kai Chun Chang; Chul Woo Kim; Elena Atroshchenko
        European Workshop on Structural Health Monitoring. (EWSHM 2022 ), Lecture Notes in Civil Engineering, 19 Jun. 2022, Peer-reviewed
      • MEMS振動発電型イベントドリブンセンサを用いた橋梁の低消費電力異常周波数監視システム
        三屋裕幸; 芦澤久幸; 橋本勝文; 張凱淳; 下村典子; 門間達希; 本間浩章; 橋口原; 塩谷智基; 年吉洋
        第38回センサ・マイクロマシンと応用システムシンポジウム, 2021, Peer-reviewed
      • Bayesian Model Updating of a Simply-Supported Truss Bridge Based on Dynamic Responses
        Xin Zhou; Chul-Woo Kim; Feng-Liang Zhang; Kai-Chun Chang; Yoshinao Goi
        Experimental Vibration Analysis for Civil Engineering Structures (EVACES 2021), Lecture Notes in Civil Engineering, 24 Aug. 2022, Peer-reviewed
      • Inverse Analysis for Road Roughness Profile Identification Utilizing Acceleration of a Moving Vehicle
        Soichiro Hasegawa; Chul-Woo Kim; Naoya Toshi; Kai-Chun Chang
        Experimental Vibration Analysis for Civil Engineering Structures (EVACES 2021), Lecture Notes in Civil Engineering, 24 Aug. 2022, Peer-reviewed, Last author
      • Road roughness profile identification methods utilizing vehicle acceleration
        Soichiro Hasegawa; Chul-Woo Kim; Naoya Toshi; Kai-Chun Chang
        Proceedings of the International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII 2021), 2021, Peer-reviewed, Last author
      • Nonlinear seismic responses of a viaduct in high speed rail system considering train dynamics
        X. Z. Lu; C. W. Kim; K. C. Chang
        Proceedings of the 17th World Conference on Earthquake Engineering (17WCEE), 2021, Peer-reviewed, Last author
      • Numerical study of damage detection of a truss bridge using pseudo local flexibility method
        T. Y. Hsu; M. C. Lu; S. Y. Shiao; K. C. Chang; C. W. Kim
        Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations - Proceedings of the 10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020, 2021, Peer-reviewed
      • Damage Location Detecting System with MEMS Vibrational Power Generator for Reinforced Concrete Slab
        橋本勝文; 塩谷智基; 張凱淳; 川端康平; 三屋裕幸
        Proceedings of the Concrete Structure Scenarios, JSMS, 2021, Peer-reviewed
      • Discussion on ill-posed problem in drive-by pavement roughness identification
        S. Hasegawa; C. W. Kim; K. C. Chang; N. Toshi
        Proceedings of the International Conference on Structural Dynamic , EURODYN, 2020, Peer-reviewed
      • Vehicle models for road profile identification by drive-by bridge inspection method
        N. Toshi; S. Hasegawa; K. C. Chang; C. W. Kim
        Life-Cycle Civil Engineering: Innovation, Theory and Practice - Proceedings of the 7th International Symposium on Life-Cycle Civil Engineering, IALCCE 2020, 2020, Peer-reviewed
      • Improving accuracy of road profile identifications of a real bridge utilizing drive-by bridge inspection
        N. Toshi; C. W. Kim; K. C. Chang; S. Nakajima
        9th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Transferring Research into Practice, SHMII 2019 - Conference Proceedings, 2019, Peer-reviewed
      • Structural Health Monitoring System Based on Installation of Micro Energy Harvester
        K. Hashimoto; T. Shiotani; K.C. Chang; H. Mitsuya
        World Congress on Resilience, Reliability and Asset Management (WCRRAM), 2019, Peer-reviewed
      • NONLINEAR DYNAMIC RESPONSES OF HIGHWAY BRIDGES EXPOSED TO PARTICULAR SEISMIC EVENTS CONSIDERING VEHICLE-BRIDGE INTERACTIONS
        Sudanna Borjigin; Chul-Woo Kim; Kai-Chun Chang; Kunitomo Sugiura
        Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2019), 2019, Peer-reviewed
      • Improving Accuracy of Drive-by Road Profile and Bridge Frequency Identifications
        N. Toshi; C.W. Kim; K.C. Chang; S. Nakajima
        Proceedings of the 9th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII 2019), 2019, Peer-reviewed
      • 走行車両の加速度応答に着目した橋梁の損傷検知
        長谷川聡一朗; 金哲佑; 中嶌俊祐; 張凱淳; 吉田郁政
        土木学会年次学術講演会講演概要集(CD-ROM), 01 Aug. 2018
      • A numerical framework to solve train-bridge interaction for high speed railway system
        XUZHAO LU; Chul-Woo KIM; Kai-Chun CHANG
        The 2018 World Congress on Advances in Civil, Environmental, & Materials Research (ACEM18), 2018, Peer-reviewed
      • Experimental studies on the feasibility of drive-by bridge inspection method using an appropriate vehicle model
        S. Nakajima; C.W. Kim; K.C. Chang; S. Hasegawa
        Life Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision: Proceedings of the Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018), 2018, Peer-reviewed
      • Evaluation of tensile failure progress in FRP using AE tomography and digital image correlation
        Takahiro Nishida; Tomoki Shiotani; Yoshikazu Kobayashi; Hisafumi Asaue; Hiroshi Nakayama; Kai Chun Chang
        Springer Proceedings in Physics, 2017
      • Experimental Investigation on the Feasibility of Drive-by Pavement Roughness and Bridge Vibration Monitoring
        S. Hasegawa; P.J. McGetrick; C.W. Kim; K.C. Chang; S. Nakajima
        The 8th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII 2017), 2017, Peer-reviewed
      • Investigating Feasibility of Drive-by Bridge Monitoring by Laboratory Experiments
        C.W. Kim; K.C. Chang; S. Inoue; S. Hasegawa; P.J. McGetrick
        Mechanics of Structures and Materials: Advancements and Challenges (24th Australasian Conference on the Mechanics of Structures and Materials (ACMSM24), 2017, Peer-reviewed
      • Traffic’s Influence on the Non-Linear Seismic Response of a Highway Bridge
        Laurensia Marcelina Anggraini; Sudanna Borjigin; Chul-Woo Kim; Kai-Chun Chang; Kunitomo Sugiura
        Proceedings of The Thirtieth KKHTCNN Symposium on Civil Engineering, CDROM, 2017
      • Development of damage evaluation method for concrete in steel plate-bonded RC slabs
        N. Ogura; H. Yatsumoto; K. C. Chang; T. Shiotani
        Springer Proceedings in Physics, 2017, Peer-reviewed
      • Innovative AE measurement by optical fiber sensing for FRP
        H. Asaue; T. Shiotani; T. Nishida; K. C. Chang; H. Nakayama
        Springer Proceedings in Physics, 2017, Peer-reviewed
      • Assessing deterioration of an in-field RC bridge deck by AE tomography
        M. Fukuda; K. C. Chang; H. Nakayama; H. Asaue; T. Nishida; T. Shiotani; T. Miyagawa; K. Watabe; T. Oshiro
        Springer Proceedings in Physics, 2017, Peer-reviewed
      • A preliminary study on application of AE methods to detecting aggregation regions of RC bridge decks
        T. Shiotani; T. Nishida; K. C. Chang; T. Miyagawa; M. Ohara; H. Yatsumoto
        Springer Proceedings in Physics, 2017, Peer-reviewed
      • Fatigue Failure Evaluation of RC Bridge Deck in Wheel Loading Test by AE Tomography
        Tomoki Shiotani; Takahiro Nishida; Hiroshi Nakayama; Hisafumi Asaue; Kai-Chun Chang; Toyoaki Miyagawa; Yoshikazu Kobayashi
        Springer Proceedings in Physics, 2017, Peer-reviewed
      • Experimental verification of a Rayleigh-wave based technique for detecting the depth of deteriorated concrete
        K. C. Chang; T. Shiotani; S. B. Tamrakar
        Emerging Technologies in Non-Destructive Testing VI - Proceedings of the 6th International Conference on Emerging Technologies in Nondestructive Testing, ETNDT 2016, 2016
      • Evaluation of grouting conditions for PC structures with wide-band ultrasounds
        M. Hashinoki; M. Hara; T. Kinoshita; K. C. Chang
        Emerging Technologies in Non-Destructive Testing VI - Proceedings of the 6th International Conference on Emerging Technologies in Nondestructive Testing, ETNDT 2016, 2016
      • Dynamic responses of an urban highway viaduct considering vehicle-bridge interaction under strong earthquakes
        Sudanna Borjigin; Chul-Woo Kim; Kai-Chun Chang; Kunitomo Sugiura
        Proceedings of the 12th World Congress on Computational Mechanics (WCCM XII) and 6th Asia-Pacific Congress on Computational Mechanics (APCOM VI), 2016, Peer-reviewed
      • 鋼板接着補強RC床版の劣化度評価に関する研究(その2)~アンカーボルトセンシングによるコンクリート内部評価~
        小椋紀彦; 八ツ元仁; 小坂崇; 塩谷智基; 張凱淳; 枦木正喜; 大原基憲
        土木学会年次学術講演会講演概要集(CD-ROM), 2015
      • 鋼板接着補強RC床版の劣化度評価に関する研究(その1)~アンカーボルトセンシングの開発について~
        八ツ元仁; 小坂崇; 小椋紀彦; 塩谷智基; 張凱淳; 枦木正喜; 大原基憲
        土木学会年次学術講演会講演概要集(CD-ROM), 2015
      • 鋼板接着補強RC床版の内部コンクリートの劣化度検出方法の開発
        小椋紀彦; 八ツ元仁; 塩谷智基; 張凱淳
        日本道路会議論文集(CD-ROM), 2015
      • 弾性波を用いたRCの鉄筋-コンクリート間の異常層の検知手法に関する基礎的検討
        奥出信博; CHANG Kai-Chun; 西田孝弘; 塩谷智基
        アコースティック・エミッション総合コンファレンス論文集, 2015
      • AE法による輪荷重走行試験下でのRC床版損傷進展評価
        麻植久史; 塩谷智基; 西田孝弘; CHANG Kai-Chun; 中山宏
        日本非破壊検査協会秋季講演大会講演概要集, 2015
      • Outlier analysis to damage detection of real steel truss bridges from changes in mode shapes
        C. W. Kim; K. C. Chang
        SHMII 2015 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure, 2015
      • An ultrasonic method utilizing anchors to inspect steel-plate bonded RC decks
        N. Ogura; H. Yatsumoto; K.C. Chang; T. Shiotani
        Emerging Technologies in Non-Destructive Testing VI: Proceedings of the 6th International Conference on Emerging Technologies in Non-Destructive Testing, 2015, Peer-reviewed
      • Ultrasonic method for predicting residual tension of ground anchors
        S.B. Tamrakar; T. Shiotani; K.C. Chang; Y. Fujiwara
        Emerging Technologies in Non-Destructive Testing VI: Proceedings of the 6th International Conference on Emerging Technologies in Non-Destructive Testing, 2015, Peer-reviewed
      • An artificially-damaged real steel truss bridge and its numerical modelling for vibration-based damage detection
        C.W. Kim; K.C. Chang
        IABSE Conference Nara, 2015: Elegance in Structures, 2015, Peer-reviewed, Last author
      • A field experiment on a simply supported steel truss bridge for damage detection utilizing statistical patterns of identified modal parameters
        K. C. Chang; C. W. Kim
        LIFE-CYCLE OF STRUCTURAL SYSTEMS: DESIGN, ASSESSMENT, MAINTENANCE AND MANAGEMENT, 2015, Lead author
      • On-site Evaluation of Fatigue Damage in Concrete Bridge Deck with Innovative NDT
        K.C. Chang
        STRUCTURAL HEALTH MONITORING 2015: SYSTEM RELIABILITY FOR VERIFICATION AND IMPLEMENTATION, VOLS. 1 AND 2, 2015, Peer-reviewed
      • Vibration-based damage detection and damage-induced stress redistribution of a real steel truss bridge
        C. W. Kim; K. C. Chang; S. Kitauchi; M. Kawatani
        Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014, 2014
      • Effect of road surface roughness on extraction of bridge frequencies by moving vehicle
        Yang, Y.B.; Lee, Y.C.; Chang, K.C.
        Mechanics and Model-Based Control of Advanced Engineering Systems, 2014
      • Changes in modal parameters of a steel truss bridge due to artificial damage
        C. W. Kim; K. C. Chang; S. Kitauchi; P. J. McGetrick; K. Hashimoto; K. Sugiura
        Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013, 2013
      • Structural damage diagnosis of steel truss bridges by outlier detection
        C. W. Kim; S. Kitauchi; K. C. Chang; P. J. Mcgetrick; K. Sugiura; M. Kawatani
        Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013, 2013
      • Stability diagram aided multivariate AR analysis for identifying the modal parameters of a steel truss bridge subjected to artificial damage
        K. C. Chang; C. W. Kim; S. Kitauchi
        Proceedings of the 13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013, 2013
      • Identifying changes in dynamic characteristics due to fracture of a diagonal member of a 9-span continuous steel truss bridge from traffic-induced vibrations
        S. Kitauchi; C. W. Kim; K. C. Chang; K. Sugiura
        Proceedings of the 13th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2013, 2013
      • Parametric study for key parameters involved in the extraction of fundamental bridge frequency by an indirect method
        Yeong Bin Yang; Kai Chuen Chang
        EASEC-11 - Eleventh East Asia-Pacific Conference on Structural Engineering and Construction, 2008

      Awards

      • 2022
        Engineering Structures, Runner Up for Best Paper (Structural Control and Health Monitoring)
        Vibration-based Bayesian model updating of an actual steel truss bridge subjected to incremental damage, Official journal
        Xin Zhou, Chul-Woo Kim, Feng-Liang Zhang, Kai-Chun Chang
      • 2022
        IFIP WG7.5 2022 Conference, Special Service Award
        International society
      • 2022
        Engineering Structures, Featured Paper Award
        Vibration-based Bayesian model updating of an actual steel truss bridge subjected to incremental damage, Official journal
        Xin Zhou, Chul-Woo Kim, Feng-Liang Zhang, Kai-Chun Chang
      • 2021
        Best Technical Paper Award
        MEMS振動発電型イベントドリブンセンサを用いた橋梁の低消費異常周波数監視システム, Japan, Japan society
        三屋 裕幸;芦澤 久幸;橋本 勝文;張 凱淳;下村 典子;門間 達希;本間 浩章;橋口 原;塩谷 智基;年吉 洋
      • 2020
        Excellent Paper Award, 75th Annual Conference of Japan Society of Civil Engineering (JSCE),
        走行車両を用いた路面形状同定における車両モデルの影響と精度向上, Japan, Japan society
        藤士尚也 , 長谷川聡一朗 , 張凱淳 , 金哲佑
      • 2015
        Excellent Presentation Award, 70th Annual Conference of Japan Society of Civil Engineering (JSCE)
        Applicability of Acoustic Emission Method to Damage Evaluation for RC Decks, Japan, Japan society
      • 2012
        Japanese Society for the Promotion of Science, JSPS Postdoctoral Fellowship for Foreign Researchers
        Research Fellowship, Japan
      • 2011
        National Science Council, Taiwan, Postdoctoral Research Abroad Program
        Research Fellowship

      External funds: Kakenhi

      • Practical bridge health monitoring fusing sensor information, analytical information and engineer judgement
        Grant-in-Aid for Scientific Research (B)
        Basic Section 22020:Structure engineering and earthquake engineering-related
        Kyoto University
        金 哲佑
        From 01 Apr. 2022, To 31 Mar. 2025, Granted
        構造ヘルスモニタリング;情報融合;ベイズ推論;モデルアップデート;デシジョンツリー;長期モニタリング;リスク評価
      • Self-Sensing Sytem with Micro Energy Harvester for Structural Health Monitoring
        Grant-in-Aid for Scientific Research (C)
        Basic Section 22010:Civil engineering material, execution and construction management-related
        Hokkaido University;Kyoto University
        Katsufumi Hashimoto
        From 01 Apr. 2020, To 31 Mar. 2023, Project Closed
        社会インフラ構造物;維持管理;モニタリング;MEMS;固有振動数;センシング;エレクトレット;振動発電;固有振動;インフラ構造物;異常検知;土木インフラ;橋梁;土木構造物;健全性評価
      • Bayesian System Identification and Information Integration for enhancement of structural health monitoring
        Grant-in-Aid for Scientific Research (B)
        Basic Section 22020:Structure engineering and earthquake engineering-related
        Kyoto University
        Chul-Woo Kim
        From 01 Apr. 2019, To 31 Mar. 2022, Project Closed
        構造ヘルスモニタリング;長期モニタリング;ベイズ異常検知;情報融合;高度化;ベイズ理論;異常検知;時間領域;橋梁;振動;モニタリング;構造同定;構造ヘルスモニタリグ;ベイズ構造同定
      • Practicability study on drive-by methods for vibration-based bridge damage detection and modal identification
        Grant-in-Aid for Young Scientists (B)
        Kyoto University
        Kai-Chun Chang
        From 01 Apr. 2017, To 31 Mar. 2020, Project Closed
        モード解析;損傷検知;橋梁振動;車両ー橋梁連成系;構造ダイナミクス;橋梁点検;車両応答;drive-by method;bridge inspection;damage detection;drive-by inspection;moving vehicle;VBI;構造工学・地震工学;モニタリング
      • Bayesian Anomaly Detection for Long-term Bridge Health Monitoring
        Grant-in-Aid for Scientific Research (B)
        Kyoto University
        Chul-Woo Kim
        From 01 Apr. 2016, To 31 Mar. 2019, Project Closed
        橋梁ヘルスモニタリング;長期モニタリング;外部因子;ベイズ推論;損傷実験;ベイズ;データ正規化;長期振動モニタリング;ベイズ異常検知;粒子フィルタ;モデルアップデート;不確定因子;非線形統計解析
      • Practical bridge health monitoring combining sensor information, analysis information and engineer experience
        Grant-in-Aid for Scientific Research (B)
        Basic Section 22020:Structure engineering and earthquake engineering-related
        Kyoto University
        金 哲佑
        From 01 Apr. 2022, To 31 Mar. 2025, Granted
        構造ヘルモニタリング;情報融合;ベイズ推論;モデルアップデート;デシジョンツリー;構造ヘルスモニタリング;長期モニタリング;リスク評価

      External funds: others

      • Kyoto University, Faculty and Staff Exchange Programs with International Partners
        From 11 Aug. 2024, To 25 Aug. 2024
        Visiting Researcher to National Taiwan University
      • A new bridge damage detection method using synchronous vehicle-bridge interaction responses measured by a wireless smart sensor system
        ISHIZUE of Kyoto University Research Development Program
        From 01 Apr. 2021, To 31 Mar. 2022
      • MEMS振動発電センサによる地震時被災検知システム
        桂キャンパス実証研究促進ファンド
        From 01 Apr. 2021, To 31 Mar. 2022
      • 点検車と対象橋梁の連成動的応答を用いたスマート橋梁異常検知システムの構築
        Ueda Memorial Foundation
        From 26 Jun. 2020, To 31 Mar. 2021
      • A smart bridge damage detection system utilizing synchronized vehicle-bridge interaction responses
        Kyoto University Foundation
        From 01 Apr. 2020, To 31 Mar. 2021
      list
        Last Updated :2025/03/29

        Education

        Teaching subject(s)

        • From 01 Apr. 2024, To 31 Mar. 2025
          Computer Programming and Experiment on Structural Mechanics
          3537, Fall, Faculty of Engineering, 2
        • From 01 Apr. 2024, To 31 Mar. 2025
          Structural Mechanics I and Exercises
          3511, Fall, Faculty of Engineering, 2
        • From 01 Apr. 2024, To 31 Mar. 2025
          Advanced Linear Algebra
          N106, Spring, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2024, To 31 Mar. 2025
          Advanced Scientific English-E3
          W237, Fall, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2024, To 31 Mar. 2025
          Basic Informatics
          T015, Fall, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2024, To 31 Mar. 2025
          Mathematical Description of Natural Phenomena
          N168, Spring, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2024, To 31 Mar. 2025
          Scientific English IA (Reading and Writing)
          R352, Year-long, Institute for Liberal Arts and Sciences, 4
        • From 01 Apr. 2023, To 31 Mar. 2024
          Computer Programming and Experiment on Structural Mechanics
          3537, Fall, Faculty of Engineering, 2
        • From 01 Apr. 2023, To 31 Mar. 2024
          Structural Mechanics I and Exercises
          3511, Fall, Faculty of Engineering, 2
        • From 01 Apr. 2023, To 31 Mar. 2024
          Mathematical Description of Natural Phenomena
          N168, Spring, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2023, To 31 Mar. 2024
          Advanced Linear Algebra
          N106, Spring, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2023, To 31 Mar. 2024
          Advanced Scientific English-E3
          W237, Fall, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2023, To 31 Mar. 2024
          Basic Informatics
          T015, Fall, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2023, To 31 Mar. 2024
          Scientific English IA (Reading and Writing)
          R352, Year-long, Institute for Liberal Arts and Sciences, 4
        • From 01 Apr. 2022, To 31 Mar. 2023
          Computer Programming and Experiment on Structural Mechanics
          3537, Fall, Faculty of Engineering, 2
        • From 01 Apr. 2022, To 31 Mar. 2023
          Structural Mechanics I and Exercises
          3511, Fall, Faculty of Engineering, 2
        • From 01 Apr. 2022, To 31 Mar. 2023
          Advanced Linear Algebra
          N106, Spring, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2022, To 31 Mar. 2023
          Advanced Scientific English-E3
          W237, Fall, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2022, To 31 Mar. 2023
          Mathematical Description of Natural Phenomena
          N168, Spring, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2022, To 31 Mar. 2023
          Basic Informatics
          T015, Fall, Institute for Liberal Arts and Sciences, 2
        • From 01 Apr. 2022, To 31 Mar. 2023
          Scientific English IA (Reading and Writing)
          R352, Year-long, Institute for Liberal Arts and Sciences, 4
        • From Apr. 2021, To Mar. 2022
          Advanced Linear Algebra
          Spring, 全学共通科目
        • From Apr. 2021, To Mar. 2022
          Advanced Scientific English-E3 (Debate)
          Fall, 全学共通科目
        • From Apr. 2021, To Mar. 2022
          Basic Informatics
          Fall, 全学共通科目
        • From Apr. 2021, To Mar. 2022
          Computer Programming and Experiment on Structural Mechanics
          Fall, 工学部
        • From Apr. 2021, To Mar. 2022
          Mathematical Description of Natural Phenomena
          Spring, 全学共通科目
        • From Apr. 2021, To Mar. 2022
          Scientific English IA (Reading and Writing)
          Year-long, 全学共通科目
        • From Apr. 2021, To Mar. 2022
          Structural Mechanics I and Exercises
          Fall, 工学部
        • From Apr. 2020, To Mar. 2021
          Advanced Linear Algebra
          Spring, 全学共通科目
        • From Apr. 2020, To Mar. 2021
          Advanced Scientific English-E3 (Debate)
          Year-long, 全学共通科目
        • From Apr. 2020, To Mar. 2021
          Basic Informatics
          Fall, 全学共通科目
        • From Apr. 2020, To Mar. 2021
          Computer Programming and Experiment on Structural Mechanics
          Fall, 工学部
        • From Apr. 2020, To Mar. 2021
          Design for Infrastructure II
          Fall, 工学部
        • From Apr. 2020, To Mar. 2021
          Exercises in Infrastructure Design
          Spring, 工学部
        • From Apr. 2020, To Mar. 2021
          Introduction to Global Engineering
          Spring, 工学部
        • From Apr. 2020, To Mar. 2021
          Mathematical Description of Natural Phenomena
          Spring, 全学共通科目
        • From Apr. 2020, To Mar. 2021
          Scientific English IA (Reading and Writing)
          Year-long, 全学共通科目
        • From Apr. 2020, To Mar. 2021
          Structural Mechanics I and Exercises
          Fall, 工学部
        • From Apr. 2019, To Mar. 2020
          Advanced Linear Algebra
          Spring, 全学共通科目
        • From Apr. 2019, To Mar. 2020
          Advanced Scientific English-E3
          Year-long, 全学共通科目
        • From Apr. 2019, To Mar. 2020
          Basic Informatics
          Fall, 全学共通科目
        • From Apr. 2019, To Mar. 2020
          Computer Programming and Experiment on Structural Mechanics
          Fall, 工学部
        • From Apr. 2019, To Mar. 2020
          Mathematical Description of Natural Phenomena
          Spring, 全学共通科目
        • From Apr. 2019, To Mar. 2020
          Scientific English IA (Reading and Writing)
          Year-long, 全学共通科目
        • From Apr. 2019, To Mar. 2020
          Structural Mechanics I and Exercises
          Fall, 工学部
        • From Apr. 2018, To Mar. 2019
          Advanced Linear Algebra
          Spring, 全学共通科目
        • From Apr. 2018, To Mar. 2019
          Advanced Scientific English-E3
          Year-long, 全学共通科目
        • From Apr. 2018, To Mar. 2019
          Basic Informatics
          Fall, 全学共通科目
        • From Apr. 2018, To Mar. 2019
          Computer Programming and Experiment on Structural Mechanics
          Fall, 工学部
        • From Apr. 2018, To Mar. 2019
          Mathematical Description of Natural Phenomena
          Spring, 全学共通科目
        • From Apr. 2018, To Mar. 2019
          Scientific English IA (Reading and Writing)
          Year-long, 全学共通科目
        • From Apr. 2018, To Mar. 2019
          Structural Mechanics I and Exercises
          Fall, 工学部
        • From Apr. 2017, To Mar. 2018
          Advanced Linear Algebra
          Spring, 全学共通科目
        • From Apr. 2017, To Mar. 2018
          Advanced Scientific English-E3
          Year-long, 全学共通科目
        • From Apr. 2017, To Mar. 2018
          Basic Informatics
          Fall, 全学共通科目
        • From Apr. 2017, To Mar. 2018
          Computer Programming and Experiment on Structural Mechanics
          Fall, 工学部
        • From Apr. 2017, To Mar. 2018
          Mathematical Description of Natural Phenomena
          Spring, 全学共通科目
        • From Apr. 2017, To Mar. 2018
          Scientific English IA (Reading and Writing)
          Year-long, 全学共通科目
        • From Apr. 2017, To Mar. 2018
          Structural Mechanics I and Exercises
          Fall, 工学部
        • From Apr. 2016, To Mar. 2017
          Advanced Linear Algebra
          Spring, 全学共通科目
        • From Apr. 2016, To Mar. 2017
          Basic Informatics
          Fall, 全学共通科目
        • From Apr. 2016, To Mar. 2017
          Computer Programming and Experiment on Structural Mechanics
          Fall, 工学部
        • From Apr. 2016, To Mar. 2017
          Mathematical Description of Natural Phenomena
          Spring, 全学共通科目
        • From Apr. 2016, To Mar. 2017
          Scientific English IA (Reading and Writing)
          Year-long, 全学共通科目
        • From Apr. 2016, To Mar. 2017
          Structural Mechanics I and Exercises
          Fall, 工学部
        • From Apr. 2015, To Mar. 2016
          Basic Informatics
          Fall, 全学共通科目
        • From Apr. 2015, To Mar. 2016
          Scientific English IA(Reading and Writing)
          Year-long, 全学共通科目
        list
          Last Updated :2025/03/29

          Administration

          School management (title, position)

          • From 01 Apr. 2018, To 31 Mar. 2025
            Asian Future Leaders Scholarship Program, Committee Member
          list
            Last Updated :2025/03/29

            Academic, Social Contribution

            Academic Contribution

            • Executive Committee, Secretariat @ the 15th International Workshop on Advanced Smart Materials and Smart Structures Technology (ANCRiSST 2024)
              Planning, management, etc.
              Kyoto University, From 2024, To 2024
            • Executive Committee, Secretariat @ 2024 Asia-Pacific-Euro Summer School on Smart Structures Technology (APESS 2024)
              Planning, management, etc.
              Kyoto University, From 2024, To 2024
            • Local Chair @ The 11th International Conference on Information Technology: IoT and Smart City (ICIT 2023)
              Planning, management, etc.
              Kyoto University, From 2023, To 2023
            • Session Organizer @ International Symposium on Emerging Developments & Innovative Applications of Reliability Engineering & Risk Management (EDIARR 2022),
              Panel moderator
              National Taiwan University of Science and Technology, From 2022, To 2022
            • Local Organizing Committee member, Secretariat @ the 20th working conference of the IFIP Working Group 7.5 on Reliability and Optimization of Structural Systems (IFIP 2022)
              Planning, management, etc.
              Kyoto University, From 2022, To 2022
            • Member of Scientific Committee and Track Chairs @ Construction Digitalisation for Sustainable Development Conference (CDSD 2020)
              Panel moderator
              From 2020, To 2020

            ページ上部へ戻る