Hiroto Nakagawa, Dr. Eng.,
Building Research Institute

International Institute of Seismology and Earthquake Engineering,
Senior Research Engineer

Research topics

Keywords:
Wave Propagation, Earthquake Motion, Microtremor, Underground Structure Model, Inversion, Identification, Irregular Ground, Thin Layered Element Method, Finite Element Method, Seismic Observation & Microtremor Measurement(Building & Ground)

Long-Period Ground Motion

Strong Motion Observation

Microtremor Exploration & Seismic Interferometry

Inversion, Identification

Numerical Analysis of Wave Propagation in Irregular Ground with Structure

Strong Ground Motion Evaluation based on Fault Model by Theoretical Approach

About me

< Contact >

1 Tachihara, Tsukuba, Ibaraki, 305-0802, Japan
Telephone: +81-29-864-6677
Mail to: hiroto-n[atmark]kenken.go.jp (Please replace [atmark] with @ when you send me an e-mail. )

< Education >

2008 - 2011 :  Dr. Eng., Chiba University, Japan
2009 - 2009 :  Visiting student, Johns Hopkins University, USA
2003 - 2005 :  M. Eng., Chiba University, Japan
1999 - 2003 :  B. Eng., Chiba University, Japan
1996 - 1999 :  Kanazawa Izumigaoka High School, Japan

Doctoral Thesis:
"Analysis of Microtremor Wavefield in an Irregular Ground and Its Application to Inverse Problem", 2011 (in Japanese)

Master's Thesis:
"A Study on the Dynamic Characteristics of a Medium-Rise Building and a Ground based on Seismic Observation and Microtremor Measurement", 2005 (in Japanese)

< Working Experience >

2023 -          :  Visiting Associate Professor, Tokyo University of Science, Japan
2020 -          :  Associate Professor (joint-appointment), National Graduate Institute for Policy Studies, Japan
2019 - 2020 :  Visiting Researcher, National Technical University of Athens, Greece
2015 -          :  Senior Research Engineer, Building Research Institute, Japan
2013 - 2015 :  Research Engineer, Building Research Institute, Japan
2005 - 2013 :  Engineer, OYO Corporation, Japan

< Teaching Experience >

  • Lecture, "Advanced Seismic Engineering", Graduate School of Science and Technology, Tokyo University of Science, 2023-present
  • Lecture, "Guidance", Training Course in Earthquake Engineering, IISEE, Building Research Institute, 2023-present
  • Lecture, "Computer", Training Course in Earthquake Engineering, IISEE, Building Research Institute, 2023-present
  • Lecture, "Shaking Table Testing", Training Course in Earthquake Engineering, IISEE, Building Research Institute, 2023-present
  • Lecture, "Strong Motion Observation", Latin American Earthquake Engineering Course, IISEE, Building Research Institute, 2021-2022
  • Lecture, "Structural Dynamics I", Training Course in Earthquake Engineering, IISEE, Building Research Institute, 2020-present
  • Lecture, "Soil Test & Survey I", Training Courses in Seismology and Earthquake Engineering, IISEE, Building Research Institute, 2014-present
  • Lecture, "Engineering Theory of Vibration", Dept. of Urban Environment Systems, Chiba University, 2013
  • Lecture, "Microtremor Observation II", Training Courses in Seismology and Earthquake Engineering, IISEE, Building Research Institute, 2012, 2014-present
    •

< Professional Memberships >

< Awards >

  • Best Paper Award (FY2022), Japan Association for Earthquake Engineering (JAEE), 2023
    •

Publications

< Journal Articles >

< Conference Proceedings (Incl. Peer-Reviewed Publications) >

  • Nakagawa, H., H. Kashiwa & S. Nakai, "Influence of Weight of Shear Box on Soil Structure System in Centrifuge Model Test", 18th World Conf. on Earthq. Eng., Milan, Italy, 9pp., 2024(submitted)

  • Yamaguchi J., H. Nakagawa, H. Liu & M. Nagano, "Dynamic SSI Effect for Buildings of Various Soil Conditions Based on Long-Term Strong-Motion Records", 18th World Conf. on Earthq. Eng., Milan, Italy, 11pp., 2024(submitted)

  • Sulthan, F., M. Seki, H. Nakagawa & Y. Otsuka, "Seismic Fragility Analysis of Fixed and Isolated Base Multi-Story Buildings Structure in Indonesia", 18th World Conf. on Earthq. Eng., Milan, Italy, 12pp., 2024(submitted)

  • Nakagawa, H. & H. Kashiwa, "A Validation Study of a Simplified Analysis Method for Rocking Structures Considering Soil Nonlinearity", Proc. 16th Japan Earthq. Eng. Sympo., 9pp., 2023 (in Japanese with English abstract)

  • Hayashida, T., H. Nakagawa, T. Yokoi, T. Kashima & S. Koyama, "Estimation of Site Amplification in Iwaki City, Fukushima Prefecture Using Temporary Seismic Observation Data", Proc. 16th Japan Earthq. Eng. Sympo., 9pp., 2023 (in Japanese with English abstract)

  • Yamaguchi, J., H. Nakagawa, H. Liu & M. Nagano, "Evaluation of Soil Spring for a Six-Story RC Building Based on Long-Term Strong Motion Records Observed at Base, Upper Floor and Adjacent Ground Surface", Proc. 16th Japan Earthq. Eng. Sympo., 10pp., 2023 (in Japanese with English abstract)

  • Nakagawa, H., H. Kashiwa, M. Matoba & S. Nakai, "Influence of Weight of Shear Box on Dynamic Soil Response in Centrifuge Model Test", Proc. 8th Asia Conf. on Earthq. Eng., Taipei, Taiwan, pp. 487-494, 2022

  • Nakagawa, H., H. Kashiwa & S. Nakai, "Applicability of a Simple Constitutive Model for Three-Dimensional Finite Element Analysis on Dynamic Soil-Structure Interaction Problem", Proc. 3rd European Conf. on Earthq. Eng. & Seism., Bucharest, Romania, pp. 192-201, 2022

  • Kashima, T. & H. Nakagawa, "Fluctuation in Dynamic Characteristics of a Six-Storey Steel Building Examined from Ambient Vibration and Strong Motion Data", Proc. 3rd European Conf. on Earthq. Eng. & Seismo., Bucharest, Romania, pp. 2239-2246, 2022

  • Satoh, T., H. Nakagawa, S. Koyama, T. Sato, M. Todo & I. Okawa, "Empirical Long-period Ground Motion Models for Design Motions to Buildings in Japan", Proc. 6th IASPEI/IAEE Int'l Symp. : Effects of Surface Geology on Seismic Motion, Kyoto, Japan, 10pp., 2021

  • Kashima, T. & H. Nakagawa, "Dynamic Characteristics of a Six-Storey Steel Building from Strong Motion and Ambient Vibration Data", EASD Procedia, 11th Int'l Conf. on Struct. Dyn. (EURODYN2020), Athens, Greece, pp. 1189-1194, 2020

  • Nakagawa, H., H. Kashiwa & S. Nakai, "Three-Dimensional Finite Element Analysis of a Building with Insulated Pile Foundation", Proc. 17th World Conf. on Earthq. Eng., Sendai, Japan, Paper No. 4c-0050, 12pp., 2020

  • Kashiwa, H, S. Ohmura, H. Nakagawa & S. Nakai, "Shaking Table Test of Insulated Pile Foundation for Effective Utilization of Existing Pile", Proc. 17th World Conf. on Earthq. Eng., Sendai, Japan, Paper No. 4c-0047, 9pp., 2020

  • Ohori, M., H. Uebayashi, I. Cho, H. Arai, K. Yoshida, H. Suzuki, H. Takahashi, Y. Hagiwara, A. Nobata, T. Hayakawa, T. Hayashida, T. Yokoi, S. Kishi, T. Sekiguchi, K. kojima, S. Ling, K. Motoki, H. Nakagawa, T. Noguchi, K. Tsuchida & M. Nagano, "A Benchmark Test for Microtremor Explorations: Phase velocity for irregular subsurface structures", Proc. 17th World Conf. on Earthq. Eng., Sendai, Japan, Paper No. 1d-0087, 12pp., 2020

  • Iyama, J., T. Hasegawa, H. Nakagawa & Y. Kaneshiro, "Realtime Detection of Beam End based on Strain Measurement during Earthquake", 10th Int'l Sympo. Steel Struct., Jeju, Korea, 4pp., 2019

  • Iyama, J., T. Hasegawa, H. Nakagawa & Y. Kaneshiro, "Beam End Fracture Detection of Two-story Steel Frame based on Micro Strain Measurement under Microtremor", 12th Pacific Struct. Steel Conf., Tokyo, Japan, 12pp., 2019

  • Kashima, T. & H. Nakagawa, "Seismic Structural Health Monitoring of a Six-story Wooden Building", Structural Health Monitoring 2019, Proc. 12th Int'l Workshop on Struct. Health Monitoring, Stanford, Calif., USA, DEStech Publicatons, Inc., pp. 2533-2540, 2019

  • Kashima, T. & H. Nakagawa, "Dynamic Characteristics of a Six-storey Wooden Building based on Strong Motion Data", 11th Pacific Conf. Earthq. Eng. and Annu. NZSEE Conf., Auckland, New Zealand, Paper No. 132, 8pp., 2019

  • Nakagawa, H., H. Kashiwa & S. Nakai, "Shaking Table Test on a Building with Insulated Pile Foundation", Proc. 15th Japan Earthq. Eng. Sympo., pp. 611-620, 2018 (in Japanese with English abstract)

  • Kashima, T., T. Fukuba & H. Nakagawa, "Study on Dynamic Characteristics of a Six-storeyed Wooden Experimental Building based on Strong Motion Data", Proc. 15th Japan Earthq. Eng. Sympo., pp. 3322-3331, 2018 (in Japanese with English abstract)

  • Ohori, M., H. Uebayashi, I. Cho, H. Arai, K. Yoshida, H. Suzuki, H. Takahashi, Y. Hagiwara, A. Nobata, T. Hayakawa, T. Hayashida, T. Yokoi, S. Kishi, T. Sekiguchi, K. Kojima, S. Ling, K. Motoki, H. Nakagawa, T. Noguchi, K. Tsuchida & M. Nagano, "Benchmark Test for Microtremor Explorations (Part2. Phase velocity estimation of the Osaka sedimentary basin)", 15th Japan Earthq. Eng. Sympo., pp. 2705-2712, 2018 (in Japanese with English abstract)

  • Uebayashi, H., M. Ohori, I. Cho, H. Arai, K. Yoshida, H. Suzuki, H. Takahashi, Y. Hagiwara, A. Nobata, T. Hayashida, S. Kishi, T. Sekiguchi, K. Kojima, K. Motoki, H. Nakagawa, T. Noguchi, K. Tsuchida & M. Nagano, "Benchmark Test for Microtremor Explorations (Part1. Velocity structure estimation of the Osaka sedimentary basin)", 15th Japan Earthq. Eng. Sympo., pp. 2698-2704, 2018 (in Japanese with English abstract)

  • Kashiwa, H., H. Arai & H. Nakagawa, "Evaluation of Local Nonlinear Effect around Pile Foundation on Seismic Response of Building during Very Large Earthquakes based on Experimental Tests and Observation Records", Proc. 16th European Conf. on Earthq. Eng., Thessaloniki, Greece, Paper No. 11158, 10pp., 2018

  • Nakai, S. & H. Nakagawa, "Effects of Irregularity and Nonlinearity of the Soil on the Damage of Pile Foundations during an Earthquake", Proc. 16th European Conf. on Earthq. Eng., Thessaloniki, Greece, Paper No. 10727, 10pp., 2018

  • Nakagawa, H., H. Kashiwa & S. Nakai, "Evaluation of Seismic Behavior of a Building with Insulated Pile Foundation based on the Shaking Table Test", Proc. 16th European Conf. on Earthq. Eng., Thessaloniki, Greece, Paper No. 10251, 10pp., 2018

  • Kashima, T., T. Fukuba & H. Nakagawa, "Strong Motion Instrumentation in a Six-story Wooden Building and Analysis of its Dynamic Characteristics", Proc. 16th European Conf. on Earthq. Eng.,Thessaloniki, Greece, Paper No. 10192, 10pp., 2018

  • Nakagawa, H., "A Study on the Design Input Motion Considering Long-Period Ground Motion due to Megathrust Earthquake", Proc. 12th Japan-China Joint Conf. on Struct. Eng., 10pp., 2017 (in Japanese with English abstract)

  • Nakagawa, H., S. Nakai & T. Kashima, "Effects of the Three-Dimensional Configuration of the Soil-Structure System on Building Response to Wave Propagation", Procedia Eng., Elsevier, Vol. 199, pp. 2402-2407, 2017

  • Nakai, S. & H. Nakagawa, "Effect of Geological Irregularity on the Damage of Pile Foundations during an Earthquake", Procedia Eng., Elsevier, Vol. 199, pp. 2408-2413, 2017

  • Pulido, N., S. Senna, T. Sekiguchi, H. Yamanaka, J. Eraso, N. Perico, J. C. Reyes, H. Garcia, P. Pedraza, C. Dimate, H. Nakagawa & K. Chimoto, "Estimation of Velocity Model of Bogota Basin (Colombia) based on Microtremors Array Measurements", Proc. 16th World Conf. on Earthq. Eng., Santiago, Chile, Paper No. 4614, 8pp, 2017

  • Hayashida, T., H. Nakagawa, T. Yokoi, S. Koyama T. Kashima & S. Nagano, "Verification of Subsurface S-Wave Velocity Structure Model in Iwaki City, Fukushima Prefecture, Using a Dense Seismic Array", Proc. 16th World Conf. on Earthq. Eng., Santiago, Chile, Paper No. 4437, 10pp, 2017

  • Nakagawa, H., S. Nakai, T. Kashima, S. Koyama, T. Hayashida & T. Yokoi, "Effect of Inclined Boundary and Embedded Foundation on Wave Propagation", Proc. 10th Pacific Conf. Earthq. Eng., Sydney, Australia, Paper No. 159, 8pp, 2015
    • 　　　　　
  • Nakagawa, H., T. Hayashida, T. Yokoi, T. Kashima, S. Koyama, C. B. M. Wiradikarta & J. R. Guerra Carballo, "A Microtremor Exploration in Iwaki City Hall for Evaluation of Inclined Bedrock", Proc. 14th Japan Earthq. Eng. Sympo., pp.3082-3091, 2014 (in Japanese with English abstract)
    • 　　　　　
  • Nakai, S. & H. Nakagawa, "Effect of Inclined Bedrock and Embedded Foundation on Surface Wave Propagation", Proc. 14th Japan Earthq. Eng. Sympo., pp.1875-1884, 2014 (in Japanese with English abstract)
    • 　　　　　
  • Ishikawa, A., Y. Hisada, M. Nagano, H. Nakagawa, T. Hayakawa, K. Kawaji, A. Nobata, S. Manabe, Y. Nagasaka & Y. Yamamoto, "Benchmark Test for Strong Motion Simulation in the Tokyo Metropolitan Area. Part 1: Comparison with the Observation that Target the Northwestern Chiba Earthquake", Proc. 14th Japan Earthq. Eng. Sympo., pp.1931-1940, 2014 (in Japanese with English abstract)
    • 　　　　　
  • Nakai, S. & H. Nakagawa, "Three-Dimensional Analysis of an Irregular Ground with Embedded Foundation. Part II. Incident Surface Waves", 2nd European Conf. on Earthq. Eng. & Seism., Istanbul, Turkey, 9pp., 2014
    • 　　　　　
  • Nakagawa, H. & S. Nakai, "Three-Dimensional Analysis of an Irregular Ground with Embedded Foundation. Part I. Incident S-Wave", 2nd European Conf. on Earthq. Eng. & Seism., Istanbul, Turkey, 7pp., 2014
    • 　　　　　
  • Nakai, S. & H. Nakagawa, "Effect of a Three-Dimensional Configuration of a Foundation-Soil System on the Surface and Body Wave Propagation", Proc. 9th Int'l Conf. on Struct. Dyn. (EURODYN2014), Porto, Portugal, pp.551-557, 2014

  • Nakagawa, H., H. Suzuki & H. Saito, "Extended CCA Method for Estimating Phase Velocity Using Arbitrarily Shaped Arrays", Proc. 15th World Conf. on Earthq. Eng., Lisbon, Portugal, 9pp., 2012

  • Nakai, S. & H. Nakagawa, "Effect of Three-Dimensional Configuration of a Ground-Structure System on the Elastic Wave Propagation", Proc. 15th World Conf. on Earthq. Eng., Lisbon, Portugal, 10pp., 2012

  • Nakai, S. & H. Nakagawa, "Wave Propagation Analysis of a Ground with Three-Dimensional Irregularities", Proc. 9th Int'l Conf. on Urban Earthq. Eng. / 4th Asia Conf. on Earthq. Eng., Tokyo, Japan, pp. 211-216, 2012

  • Nakagawa, H. & S. Nakai, "Microtremor-based Joint Inversion for Estimating S-Wave Velocity Profile of Two-Dimensional Irregular Ground", Proc. 4th IASPEI/IAEE Int'l Symp. : Effects of Surface Geology on Seismic Motion, Santa Barbara, Calif., USA, No.5.19, 10pp., 2011

  • Nakai, S. & H. Nakagawa, "Wave Propagation Analysis of a Ground with Three-Dimensional Irregularities based on the Finite Element Method", Proc. 4th IASPEI/IAEE Int'l Symp. : Effects of Surface Geology on Seismic Motion, Santa Barbara, Calif., USA, No.3.20, 12pp., 2011

  • Nakagawa, H. & S. Nakai, "Two-Dimensional S-Wave Velocity Inversion by the use of H/V Spectra and Dispersion Curves", Proc. 8th Int'l Conf. on Struct. Dyn. (EURODYN2011), Leuven, Belgium, pp. 2549-2555, 2011

  • Nakai, S. & H. Nakagawa, "Surface Wave Propagation Analysis of a Ground with Three-Dimensional Irregularities", Proc. 8th Int'l Conf. on Struct. Dyn. (EURODYN2011), Leuven, Belgium, pp. 574-580, 2011

  • Yoshimura, S., S. Nakai, T. Sekiguchi & H. Nakagawa, "Two-Dimensional Finite Element Analysis of Irregular Ground Elasto-Plastic Properties Considering", Proc. 13th Japan Earthq. Eng. Symp., pp. 2402-2408, 2010 (in Japanese with English abstract)

  • Nakagawa, H. & S. Nakai, "Joint Inversion Analysis of Microtremor H/V Spectrum and Dispersion Curve by the use of Clustering Method", Proc. 13th Japan Earthq. Eng. Symp., pp. 3763-3769, 2010 (in Japanese with English abstract)

  • Nakai, S. & H. Nakagawa, "Three-Dimesional Finite Element Analysis of a Slope Ground Subject to an Incident Surface Wave", Proc. 13th Japan Earthq. Eng. Symp., pp. 2409-2416, 2010 (in Japanese with English abstract)

  • Nakagawa, H. & S. Nakai, "Propagation of Surface Waves in an Irregular Ground based on the Thin Layered Element and Finite Element Method", Proc. 5th Int'l Conf. on Recent Adv. in Geotech. Earthq. Eng. and Soil Dyn., San Diego, Calif., USA, Paper No. 2.17, 12pp., 2010 <errata>

  • Nakai, S. & H. Nakagawa, "Propagation of Rayleigh Waves in an Irregular Ground", Proc. 6th Int'l Conf. on Urban Earthq. Eng., Tokyo, Japan, pp. 133-138, 2009

  • Nakagawa, H. & S. Nakai, "Analysis of Surface Wave Propagation Based on the Thin Layered Element Method", Proc. 14th World Conf. on Earthq. Eng., Beijing, China, Paper No. 02-0075, 8pp., 2008

< Technical Reports >

  • Kashiwa, H., H. Nakagawa & S. Nakai, "Current Status of Research and Development on Insulated Pile Foundation for Utilization of Existing Piles (*tentative title in English)", Foundation Engineering & Equipment, Monthly, Vol. 49, No. 8, pp. 34-37, 2021 (in Japanese)

  • Iyama, J., H. Kitajima, Y. Kaneshiro, S. Hiroshima, T. Hasegawa, H. Nakagawa & K. Morita, "Shaking Table Test on Seismic Response of Steel Two-Story Frame Considering Fractures at Beam Ends, - Application of damage detection method using micro strain amplitude measured under microtremor -", Kyowa Gihou, No. 560, pp. 4414-4415, 2019 (in Japanese)

  • NILIM & BRI, "Quick Report of the Field Survey on the Building Damage by the 2016 Kumamoto Earthquake", Tech. Note of NILIM, No. 929 & Bldg. Res. Data, No. 173, 2016 (in Japanease)

  • Azuhata, T., N. Inoue, M. Iiba, T. Kashima, S. Koyama, H. Nakagawa, T. Tanuma & K. Morita, "Study on Dynamic Soil-Building Structure Interaction based on Strong Motion Observation", Tech. Note of NILIM, No. 866 & Bldg. Res. Data, No. 167, 2015 (in Japanease with English Abstract)

  • Okaya, T., H. Suzuki & H. Nakagawa, "Development of New Instrument (McSEIS-MT NEO) for Microtremor Measurement and Summary of Microtremor Exploration", OYO Tech. Rep., No. 31, pp. 75-84, 2012 (in Japanease with English Abstract)

Presentations

  • Nakagawa, H. & T. Kashima, "A Study on Time Variation of Sway Model Parameters Estimated from Strong Motion Records", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 861-862, 2023 (in Japanese)

  • Kashima, T. & H. Nakagawa, "Change in Dynamic Characteristics of a Seismically Retrofitted Thirteen-Story Steel-Framed Reinforce Concrete Office Building", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 893-894, 2023 (in Japanese)

  • Yamaguchi, J., H. Nakagawa, H. Liu & M. Nagano, "Dynamic Soil-Structure Interaction Effects Based on Strong Motion Records of Buildings with Various Soil Conditions", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 863-864, 2023 (in Japanese)

  • Morita, T., T. Hasegawa, H. Nakagawa & M. Sakashita, "Shaking Table Test on Seismic Damage Evaluation of Steel Brace Frames, Part2 Performance Recovery by Retightening Turnbuckle Brace and Prediction of Earthquake Response Displacement of Brace Frames Using Integral of Acceleration", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1243-1244, 2023 (in Japanese)

  • Hasegawa, T., K. Morita, H. Nakagawa & M. Sakashita, "Shaking Table Test on Seismic Damage Evaluation of Steel Brace Frames , Part 1 Test Plan and Damage Progress", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1241-1242, 2023 (in Japanese)

  • Nakagawa, H., H. Kashiwa, M. Matoba & S. Nakai, "A Study on Influence of Weight of Shear Box on Dynamic Soil Response in Centrifuge Model Test", Annu. Meeting of JAEE, 8pp., 2022 (in Japanese)

  • Kashiwa, H., H. Nakagawa & S. Nakai, "Seismic Response of Structure Supported by Insulated Pile Foundation on Two Types of Grounds", Annu. Meeting of JAEE, 10pp., 2022 (in Japanese)

  • Nakagawa, H. & T. Kashima, "A Study on Dynamic Characteristics of a Six-Story Steel Government Office Building, Part 2 Analysis of Strong Motion Records", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 273-274, 2022 (in Japanese)

  • Kashima, T. & H. Nakagawa, "A Study on Dynamic Characteristics of a Six-Story Steel Government Office Building, Part 1 Change with Time Investigated using Ambient Vibration", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 271-272, 2022 (in Japanese)

  • Kashiwa, H., H. Nakagawa, T. Ishihara & S. Nakai, "Seismic Response of Building Supported by Insulated Pile Foundation on Centrifugal Shaking Table Test", Annu. Meeting of Kinki Branch of AIJ, 4pp., 2022 (in Japanese)

  • Hayashida, T., H. Nakagawa & T. Kashima, "Measurement and Utilization of Ground Motions (1-2Hz) Generated by a Geotechnical Centrifuge", JpGU Annu. Meeting, SSS13-P01, 2022

  • Nakagawa, H., "A Study on Identification of Dynamic Characteristics of High-Rise Steel-Framed Buildings Based on Strong Motion Observation Records", Annu. Symp. of BRI, 2pp., 2022 (in Japanese)

  • Kashima, T. & H. Nakagawa, "Dynamic Characteristics of Buildings Equipped with Seismic Monitoring System", 17th World Conf. on Earthq. Eng., Sendai, Japan, No. O30C03, 2021

  • Yokoi, T., T. Azuhata, B. Shibazaki, T. Hara, Y. Fujii, H. Suwada, H. Nakagawa, S. Kita, T. Hayashida, M. Ito, T. Kashima & Y. Otsuka, "Contribution to Sendai Framework Through Capacity Development and Knowledge Sharing", 17th World Conf. on Earthq. Eng., Sendai, Japan, No. O28C11, 2021

  • Nakagawa, H. & T. Kashima, "Strong Motion Observation of a High-Rise Building in Chiba City", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 901-902, 2021 (in Japanese)

  • Kashima, T. & H. Nakagawa, "A Study in Site Amplification and Soil-Structure Interaction of a Six-Story Steel Government Office Building", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 903-904, 2021 (in Japanese)

  • Hasegawa, T., H. Nakagawa, K. Morita & S. Hiroshima, "Shaking Table Test on Damage Evaluation at Beam-ends of Steel Frame Subjected to Earthquake Part3 Seismic damage prediction utilizing integral value of acceleration", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1189-1190, 2021 (in Japanese)

  • Hiroshima, S., T. Hasegawa, K. Morita, H. Nakagawa, J. Iyama, Y. Iwata & Y. Oki, "Shaking Table Test on Damage Evaluation at Beam-ends of Steel Frame Subjected to Earthquake Part2 Damage progress and fatigue performance", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1187-1188, 2021 (in Japanese)

  • Iyama, J., S. Hiroshima, T. Hasegawa, K. Morita & H. Nakagawa, "Shaking Table Test on Damage Evaluation at Beam-ends of Steel Frame Subjected to Earthquake Part1 Experimental plan and load-deformation relationship", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1185-1186, 2021 (in Japanese)

  • Nakagawa, H., H. Kashiwa & S. Nakai, "A Study on the Seismic Behavior of a Building with Pile Foundation based on the Subspace Model Identification", Annu. Meeting of JAEE, 6pp., 2020 (in Japanese)

  • Kashima, T., S. Koyama & H. Nakagawa, "Re-Digitization of Strong Motion Data Recorded at Tohoku University during the 1978 Miyagi-ken-oki Earthquake", Annu. Meeting of JAEE, 10pp., 2020 (in Japanese)

  • Nakagawa, H., "A Development of Three-Dimensional Elasto-Plastic Code and its Application", The 48th Ground Motion Sympo., pp. 66-69, 2020 (in Japanese with English abstract)

  • Nakagawa, H., "A Development of Three-Dimensional Dynamic Elasto-Plastic Analysis Code and its Application to Two-Dimensional Problem", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 137-138, 2020 (in Japanese)

  • Kashima, T. & H. Nakagawa, "Strong Motion Observation a Six-Story Steel Government Office Building", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 528-529, 2020 (in Japanese)

  • Kashiwa, H., S. Ohmura, H. Nakagawa & S. Nakai, "Seismic Response of Structure Supported by Insulated Pile Foundation on Shaking Table Test Part:2", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 279-280, 2020 (in Japanese)

  • Ohmura, S., H. Kashiwa, H. Nakagawa & S. Nakai, "Seismic Response of Structure Supported by Insulated Pile Foundation on Shaking Table Test Part:1", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 277-278, 2020 (in Japanese)

  • Kaneshiro, Y., T. Ueki, H. Kamura, Y. Murakami, T. Hasegawa & H. Nakagawa, "Calculation of Energy Method Considering Fatigue Limit of 1st Floor Column Base -Part.2 Application study to steel frame structure-", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1124-1125, 2020 (in Japanese)

  • Ueki, T., Y. Kaneshiro, H. Kamura, Y. Murakami, T. Hasegawa & H. Nakagawa, "Calculation of Energy Method Considering Fatigue Limit of 1st Floor Column Base -Part.1 Setting the ratio of equivalent repetitions-", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1122-1123, 2020 (in Japanese)

  • Kashiwa, H., S. Ohmura, H. Nakagawa & S. Nakai, "Model Test of Insulated Pile Foundation for Effective Utilization of Existing Piles Part2", 55th JGS Annu. Meeting, 21-8-1-08, 2020 (in Japanese)

  • Ohmura, S., H. Kashiwa, H. Nakagawa & S. Nakai, "Model Test of Insulated Pile Foundation for Effective Utilization of Existing Piles Part1", 55th JGS Annu. Meeting, 21-8-1-07, 2020 (in Japanese)

  • Kashima, T. & H. Nakagawa, "Study on Effect of Soil-Structural Interaction of a 6-Story Wooden Experimental Building based on Strong Motion Data", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 713-714, 2019 (in Japanese)

  • Wakui, M., J. Iyama, T. Hasegawa, Y. Kaneshiro & H. Nakagawa, "Shaking Table Test on Seismic Response of Steel 2-Story Frame Considering Fractures at Beam-Ends Part5 Application of nonlinearity detection method using the second time derivative of absolute acceleration response", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1231-1232, 2019 (in Japanese)

  • Kitajima, H., J. Iyama, T. Hasegawa, Y. Kaneshiro & H. Nakagawa, "Shaking Table Test on Seismic Response of Steel 2-Story Frame Considering Fractures at Beam-Ends Part4 Application of damage detection method using micro strain amplitude measured under microtremor", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1229-1230, 2019 (in Japanese)

  • Hasegawa, T., H. Nakagawa & Y. Kaneshiro, "Shaking Table Test on Seismic Response of Steel 2-Story Frame Considering Fractures at Beam-Ends Part3 Seismic damage prediction for steel beams utilizing integral value of acceleration", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1227-1228, 2019 (in Japanese)

  • Ueki, T., Y. Kaneshiro, H. Kamura, Y. Murakami, T. Hasegawa & H. Nakagawa, "Study on Calculated by the Energy Balance Method Considering Beam-End Strength Degradation Part.2 Application study to building with damper", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1175-1176, 2019 (in Japanese)

  • Nakagawa, H., "Dynamic Elasto-Plastic Finite Element Analysis of a Building with Insulated Pile Foundation", 7th Int'l Conf. on Comput. Methods in Struct. Dyn. and Earthq. Eng. (COMPDYN 2019), Creta, Greece, 2019

  • Nakagawa, H., "On the Design Input Motion for High-Rise and Seismically Isolated Buildings due to Earthquakes along the Nankai Trough", Panel on Collaboration Research between JRC-IPSC and J-BRI, Ispra, Italy, 2018

  • Kashiwa, H., H. Arai & H. Nakagawa, "Simulation Analysis for a Damaged Building with Pile Foundation Located in Near-Fault Area during the 2016 Kumamoto Earthquakes (*tentative title in English)", Sympo.「Discussion on Design of Building Foundation Structures for Extreme Ground Motions(*tentative title in English)」, pp. 17-27, 2018 (in Japanese)

  • Satoh, T., H. Nakagawa, S. Koyama, T. Sato, M. Tohdo, I. Okawa & S. Senna, "Examples of Strong Motion Predictions for Earthquakes along the Sagami Trough", The 46th Ground Motion Sympo., pp. 93-104, 2018 (in Japanese with English abstract)

  • Ohori, M., H. Uebayashi, I. Cho, H. Arai, K. Yoshida, H. Suzuki, H. Takahashi, Y. Hagiwara, A. Nobata, T. Hayakawa, T. Hayashida, T. Yokoi, S. Kishi, T. Sekiguchi, K. Kojima, S. Ling, K. Motoki, H. Nakagawa, T. Noguchi, K. Tsuchida & M. Nagano, "Preliminary Results of Benchmark Test of Array Analyses for Evaluation of S-Wave Velocity Structures Using Simulated Microtremor Waveforms", The 46th Ground Motion Sympo., pp. 3-14, 2018 (in Japanese with English abstract)

  • Kashiwa, H. & H. Nakagawa, "Recent Studies on Damage to Pile Foundations during Earthquakes", Panel Discussion in Annu. Meeting of AIJ, pp. 59-67, 2018 (in Japanese)

  • Satoh, T., H. Nakagawa, S. Koyama, T. Sato, M. Tohdo & I. Okawa, "Long-Period Ground Motions of the 2011 Tohoku Earthquake and Strong Motion Predictions for Sagami Trough Earthquakes", Panel Discussion in Annu. Meeting of AIJ, pp. 23-36, 2018 (in Japanese)

  • Nakagawa, H, "A Study on Time History Analysis of Ground Considering Elasto-Plastic Properties and Frequency Independent Damping", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 625-626, 2018 (in Japanese)

  • Koyama, S., T. Satoh, H. Nakagawa, T. Sato & M. Tohdo, "Prediction of Long-Period Ground Motions for Sagami Trough Earthquakes using Strong Motion Records (Part 4) Predictions at the engineering bedrock for the 1923 Kanto earthquake and the south metropolitan earthquake", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 789-790, 2018 (in Japanese)

  • Satoh, T., H. Nakagawa, S. Koyama, T. Sato, M. Tohdo & S. Senna, "Prediction of Long-Period Ground Motions for Sagami Trough Earthquakes using Strong Motion Records (Part 3) Empirical equations at engineering bedrock", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 787-788, 2018 (in Japanese)

  • Kashima, S. & H. Nakagawa, "Influence Factors on the Dynamic Characteristics of a 6-Story Wooden Experimental Building", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 207-208, 2018 (in Japanese)

  • Ito, M., M. Kutsuzawa, Y. Otsuka, H. Hiraishi & H. Nakagawa, "Reduction Factor of Total Input Energy for Long-Period Ground Motions (Part 2 Evaluation formula and study on the adaptability", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 55-56, 2018 (in Japanese)

  • M. Kutsuzawa, M., M. Ito, Y. Otsuka, H. Hiraishi & H. Nakagawa, "Reduction Factor of Total Input Energy for Long-Period Ground Motions (Part 1 Method of evaluation and example of evaluation", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 53-54, 2018 (in Japanese)

  • Ohori, M., H. Uebayashi, I. Cho, H. Arai, K. Yoshida, Y. Hagiwara, A. Nobata, T. Hayashida, S. Kishi, T. Sekiguchi, K. Kojima, K. Motoki, H. Nakagawa, T. Noguchi, H. Suzuki, H. Takahashi, K. Tsuchida & M. Nagano, "Benchmark Test for Microtremor Array Analyses (part2. Phase velocity of the Osaka sedimentary basin)", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 615-616, 2018 (in Japanese)

  • Uebayashi, H., M. Ohori, I. Cho, H. Arai, K. Yoshida, Y. Hagiwara, A. Nobata, T. Hayashida, S. Kishi, T. Sekiguchi, K. Kojima, K. Motoki, H. Nakagawa, T. Noguchi, H. Suzuki, H. Takahashi, K. Tsuchida & M. Nagano, "Benchmark Test for Microtremor Explorations (part1. Velocity structure estimation of the Osaka sedimentary basin)", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 613-614, 2018 (in Japanese)

  • Hasegawa, T., H. Nakagawa & S. Hiroshima, "Shaking Table Test on Seismic Response of Steel Two-Span Frame Considering Fractures at Beam-Ends Part4 Seismic damage prediction for steel beams utilizing integral value of acceleration", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 1047-1048, 2018 (in Japanese)

  • Kaneshiro, Y., T. Ueki, H. Kamura, Y. Murakami, T. Hasegawa & H. Nakagawa "Study on Calculation by the Energy Balance Method Considering Beam-End Fracture and Strength Degradation", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 813-814, 2018 (in Japanese)

  • Nakagawa, H., H. Kashiwa & H. Arai, "Dynamic Deformation Properties and Ground Motion Amplification Characteristics in Mashiki Town (*tentative title in English)", 13th Annu. Meeting of JAEE, P4-7, 8pp., 2017 (in Japanese)

  • Kashiwa, H., H. Arai & H. Nakagawa, "Seismic Response and Effect of Dynamic Interaction at Mashiki Town Office during the 2016 Kumamoto Earthquake (*tentative title in English)", 13th Annu. Meeting of JAEE, P3-15, 10pp., 2017 (in Japanese)

  • Satoh, T., H. Nakagawa, S. Koyama, T. Sato & M. Tohdo, "A Study of  Rupture Directivity Effects based on Previous Model and Observed Response Spectra due to Subduction-zone Earthquakes (*tentative title in English)", 13th Annu. Meeting of JAEE, P1-3, 10pp., 2017 (in Japanese)

  • Nakagawa, H, T. Kashima & S. Nakai, "A Study on Effects of Inclined Boundary Layer and Building Structure on Ground Motion Records", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 309-310, 2017 (in Japanese)

  • Nakai, S. & H. Nakagawa, "Analysis of Characteristic Pile Damage in an Irregular Ground", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 311-312, 2017 (in Japanese)

  • Koyama, S., T. Satoh, H. Nakagawa, T. Sato & M. Tohdo, "Prediction of Long-Period Ground Motions for Sagami Trough Earthquakes using Strong Motion Records (Part 2) Application of the empirical equations to the 1923 Kanto earthquake", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 243-244, 2017 (in Japanese)

  • Satoh, T., H. Nakagawa, S. Koyama, T. Sato & M. Tohdo, "Prediction of Long-Period Ground Motions for Sagami Trough Earthquakes using Strong Motion Records (Part 1) Empirical equations for acceleration response spectra", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 241-242, 2017 (in Japanese)

  • Kashima, S., T. Fukuba & H. Nakagawa, "Strong Motion Instrumentation in a 6-Story Wooden Experimental Building and Analysis of its Dynamic Characteristics", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 505-506, 2017 (in Japanese)

  • Cho, I., H. Uebayashi, M. Ohori, M. Nagano, H. Arai, Y. Hagiwara, A. Nobata, T. Hayashida, T. Yokoi, S. Kishi, T. Sekiguchi, K. Kojima, S. Ling, H. Nakagawa, T. Noguchi, H. Suzuki, H. Takahashi & K. Yoshida, "Benchmark Test for Microtremor Array Analyses (part2. Phase velocities by SPAC methods)", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 339-340, 2017 (in Japanese)

  • Hasegawa, T., H. Nakagawa & S. Hiroshima, "Shaking Table Test on Influence of Input Earthquake Ground Motions to Inelastic Deformation Capacity of Steel Beam Ends", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 881-882, 2017 (in Japanese)

  • Hayashida, T., T. Yokoi, H. Nakagawa, T. Kashima & S. Koyama, "Simulation of Strong Ground Motions in and around Iwaki City, Fukushima Prefecture using Pseudo Point Source Model", IAG-IASPEI Joint Scientific Assembly, 2017

  • Nakagawa, H., H. Kashiwa, S. Nakai & S. Koyama, "Shaking Table Test and FEM Analysis for Evaluation of Seismic Behavior of Insulated Pile Foundation", 12th Annu. Meeting of JAEE, P3-35, 8pp., 2016 (in Japanese)

  • Nakagawa, H., H. Kashiwa, S. Nakai & S. Koyama, "Shaking Table Test for Evaluation of Seismic Behavior of Insulated Pile Foundation, Part II: Three-Dimensional Finite Element Analysis", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 837-838, 2016 (in Japanese)

  • Kashiwa, H., H. Nakagawa, S. Nakai & S. Koyama, "Shaking Table Test for Evaluation of Seismic Behavior of Insulated Pile Foundation, Part I: Test Setup and Test Result", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 835-836, 2016 (in Japanese)

  • Ueki, T., Y. Kaneshiro, H. Kamura, Y. Murakami, T. Hasegawa & H. Nakagawa "Evaluation of the Damage Degree of Beam-to-Column Connection at the Medium and Low Storied Buildings, Part II. Reduction Effects by setting the damping device", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 661-662, 2016 (in Japanese)

  • Kaneshiro, Y., T. Ueki, H. Kamura, Y. Murakami, T. Hasegawa & H. Nakagawa "Evaluation of the Damage Degree of Beam-to-Column Connection at the Medium and Low Storied Buildings, Part I. Effect of spcification of beam-to-column", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 659-660, 2016 (in Japanese)

  • Nakagawa, H., H. Kashiwa, S. Nakai & S. Koyama, "Seismic Behavior of Insulated Pile Foundation in Shaking Table Test, Part II: Three-Dimensional Finite Element Analysis", 51st JGS Annu. Meeting, pp. 1287-1288, 2016 (in Japanese)

  • Kashiwa, H., H. Nakagawa, S. Nakai & S. Koyama, "Seismic Behavior of Insulated Pile Foundation in Shaking Table Test, Part I: Test Setup and Test Result", 51st JGS Annu. Meeting, pp. 1285-1286, 2016 (in Japanese)

  • Pulido, N., S. Senna, T. Sekiguchi, H. Yamanaka, K. Chimoto, H. Nakagawa, J. Eraso, H. Garcia, N. Perico & J. C. Reyes, "Estimation of Bogota (Colombia) Basin Velocity Model from Microtremors Array Measurements for Strong Ground Motion", JpGU Annu. Meeting, 2016

  • H. Nakagawa, "A Study on Effects of Inclined Engineering Bedrock on the Seismic Characteristics of Ground", Annu. Symp. of BRI, pp. 111-112, 2016 (in Japanese)

  • Hayashida, T., T. Yokoi, H. Nakagawa, S. Koyama & T. Kashima, "Estimation of Site Amplification in Iwaki City, Fukushima Prefecture using Spectral Inversion Method", Annu. Fall Meeting of SSJ, S16-P10, 2015 (in Japanese)

    •
  • Ishikawa, A., Y. Hisada, M. Nagano, M. Tahara, S. Manabe, K. Kawaji, H. Nakagawa, A. Nobata & Y. Yamamoto, "Benchmark Test for Strong Ground Motion", Annu. Fall Meeting of SSJ, S15-P20, 2015 (in Japanese)

    •
  • Nakagawa, H., S. Koyama & I. Okawa, "A Study on Site Factor of the Revised Empirical Relation for an Evaluation of Long-Period Ground Motion", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 167-168, 2015 (in Japanese)

    •
  • Koyama, S., H. Nakagawa & I. Okawa, "Study on the Long-Period Ground Motion Generated by Nankai Trough Earthquake", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 169-170, 2015 (in Japanese)

    •
  • Ishikawa, A., Y. Hisada, M. Nagano, H. Nakagawa, M. Tahara & K. Kawaji, "Benchmark Tests for Strong Motion Simulation in the Tokyo Metropolitan Area, Part 3 Application of Theoretical and Numerical Methods for the Hypothetical South Tokyo Earthquake", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 135-136, 2015 (in Japanese)

    •
  • Ishikawa, A., Y. Hisada, K. Goto, H. Nakagawa, T. Hayakawa, A. Nobata, K. Kawaji, S. Manabe, Y. Nagasaka, A. Nozu & Y. Yamamoto, "Benchmark Tests for Strong Motion Simulation in the Tokyo Metropolitan Area", Annu. Fall Meeting of SSJ, S15-P10, 2014 (in Japanese)

    •
  • Nakagawa, H., S. Koyama & I. Okawa, "A Study on Response Spectrum of Long-Period Ground Motion by the Revised Empirical Relation - Comparison with SRSS -", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 271-272, 2014 (in Japanese)

    •
  • Koyama, S., I. Okawa & H. Nakagawa, "Study on the Evaluation Method for Maximum Horizontal Acceleration", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 411-412, 2014 (in Japanese)

    •
  • Ishikawa, A., Y. Hisada, M. Nagano, H. Nakagawa & T. Hayakawa, "Benchmark Tests for Strong Motion Simulation in the Tokyo Metropolitan Area, Part 2 Application of Theoretical and Numerical Methods for the 2003 North-West Chiba Earthquake", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 309-310, 2014 (in Japanese)

    •
  • Inoue, N., T. Azuhata, H. Arai, M. Iiba, T. Kashima, S. Koyama, H. Nakagawa & T. Tanuma, "Study on Earthquake Input Motion and Response of Buildings Using Earthquake Observation Records: Part 1 Target Buildings and Digest of Seismic Records", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 941-942, 2014 (in Japanese)

    •
  • Nakagawa, H. & S. Nakai, "Effect of Slope Ground with Embedded Foundation on the Seismic Ground Motion Indices", 10th Annu. Meeting of JAEE, pp. 343-344, 2013(in Japanese)

    •
  • Nakagawa, H. & S. Nakai, "Effect of Slope Ground with Embedded Foundation on the Amplification Factor", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp. 251-252, 2013 (in Japanese)

  • Suzuki, H. & H. Nakagawa, "Estimation of Surface Wave Phase Velocity in the Long Period Range Using Earthquake Data Recorded by Hi-net", Proc. 127th SEGJ Conf., 4pp., 2012 (in Japanese with English abstract)

  • Nakagawa, H., "Modeling of Deep Velocity Structure by Using Microtremor and Earthquake Data Records", Proc. 26th OYO Corp. Branch Meeting, pp.53-62, 2012 (in Japanese)

  • Suzuki, H., H. Nakagawa & G. Kobayashi, "Estimation of S-wave Velocity Structure of Deep Sedimentary Layers Using Geophysical Data and Earthquake Ground Motion Records", 2nd Int'l WS on Seismic Obs. in Deep Borehole and Its Application, Niigata, Japan, 2012

  • Nakai, S. & H. Nakagawa, "Response of a 3-D Slope Ground Subjected to a Vertically Incident S-wave (Part. II) Result of 3-dimensional analysis", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp.127-128, 2012 (in Japanese)

  • Nakagawa, H. & S. Nakai, "Response of a 3-D Slope Ground Subjected to a Vertically Incident S-wave (Part. I) 2.5-D analysis for calculation of driving force", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp.125-126, 2012 (in Japanese)

  • Nakagawa, H. & S. Nakai, "Effect of a Ground with Three-Dimensional Irregularties on the Wave Propagation", Proc. 126th SEGJ Conf., pp.35-38, 2012 (in Japanese with English abstract)

  • Black, K. M., T. Yokoi, H. Nakagawa, H. Suzuki & H. Saito, "Exploration at Yoshino Park, Joso City", Proc. 8th Annu. Meeting of JAEE, pp.82-83, 2011 (in Japanese)

  • Black, K. M, T. Yokoi, H. Nakagawa, H. Suzuki & H. Saito, "Exploration at Liquefied Site in Joso City", Annu. Fall Meeting of SSJ, P2-34, 2011

  • Nakagawa, H., H. Suzuki & M. Ohba, "A Study on the Effect of Inclined Boundary on Microtremor H/V Spectra", Proc. 125th SEGJ Conf., pp.41-44, 2011 (in Japanese with English abstract)

  • Black, K. M., T. Yokoi, H. Nakagawa, H. Suzuki & H. Saito, "Exploration Using SPAC and MASW (CMPCC) at Yoshino General Park in Joso City, Ibaraki Pref., Japan where the Ground Failure by Liquefaction Took Place due to the 2011 off the Pacific Coast of Tohoku Earthquake", Proc. 125th SEGJ Conf., pp.29-32, 2011 (in Japanese with English abstract)

  • Nakai, S. & H. Nakagawa, "A Study on the Effect of a Ground with Three-Dimensional Irregularities on H/V Spectra and Dispersion Curves", Summaries of Tech. Papers of Annu. Meeting of AIJ, B-2, pp.149-150, 2011 (in Japanese)

  • Nakagawa, H. & S. Nakai, "A Study on Inversion for a Slope Ground by the Use of Microtremor H/V Spectra and Dispersion Curve", Summaries of Tech. Papers of Annu. Meeting of AIJ, B-2, pp.147-148, 2011 (in Japanese)

  • Nakagawa, H. & S. Nakai, "A Study on the Effect of an Irregular Ground on Microtremor H/V Spectra and Dispersion Curves", Summaries of Tech. Papers of Annu. Meeting of AIJ, B-2, pp.795-796, 2010 (in Japanese)

  • Nakagawa, H. & S. Nakai, "A Study on Body Wave Contribution Induced by Incidence of Surface Waves in a Two-Dimensional Irregular Ground", Summaries of Tech. Papers of Annu. Meeting of AIJ, B-2, pp.73-74, 2009 (in Japanese)

  • Nakagawa, H. & S. Nakai, "Incident Surface Wave for Irregular Ground by 2-D Thin Layered Element Method Part. II", Proc. 6th Annu. Meeting of JAEE, pp.206-207, 2008 (in Japanese)

  • Nakai, S. & H. Nakagawa, "Incident Surface Wave for Irregular Ground by 2-D Thin Layered Element Method Part. I", Proc. 6th Annu. Meeting of JAEE, pp.204-205, 2008 (in Japanese)

  • Nakagawa, H., S. Nakai & T. Sekiguchi, "A Study on Effect of an Error in the Soil Profile Inversion Analysis on the Amplification Characteristics of the Ground", Summaries of Tech. Papers of Annu. Meeting of AIJ, B-2, pp.941-942, 2008 (in Japanese)

  • Nakagawa, H. & S. Nakai, "Eigenmode Analysis of Layerd media by Thin Layered Element Method", Proc. 4th Annu. Meeting of JAEE, pp.42-43, 2007 (in Japanese)

  • Nakagawa, H., S. Nakai & R. Ishida, "A Study on H/V Spectra Obtained from Microtremor Measurements based on Thin Layer Element Method", Summaries of Tech. Papers of Annu. Meeting of AIJ, B-2, pp.103-104, 2006 (in Japanese)

  • Nakagawa, H., S. Nakai, R. Ishida & Y. Funahashi, "A Study on Microtremor H/V Spectrum based on Thin Layered Element Method (on Higher Modes of Rayleigh Waves)", Proc. 4th Annu. Meeting of JAEE, pp.460-461, 2005 (in Japanese)

  • Funahashi, Y., S. Nakai, R. Ishida, H. Nakagawa & Y. Nagata, "A Study on the Dynamic Characteristics of the Reclaimed Ground based on Microtremor Observation", Summaries of Tech. Papers of Annu. Meeting of AIJ, pp.221-222, 2005(in Japanese)

  • Nakai, S., H. Nakagawa & R. Ishida, "A Study on H/V Spectra Obtained from Microtremors and Earthquake Ground Motions (Part. II) Microtremors", Summaries of Tech. Papers of Annu. Meeting of AIJ, B-2, pp.243-244, 2005 (in Japanese)

  • Nakagawa, H., S. Nakai & R. Ishida, "A Study on H/V Spectra Obtained from Microtremors and Earthquake Ground Motions (Part. I) Earthquake Ground Motions", Summaries of Tech. Papers of Annu. Meeting of AIJ, B-2, pp.241-242, 2005 (in Japanese)

  • Nakagawa, H., R. Ishida & S. Nakai, "A Study on the Dynamic Characteristics of a Medium-rise Building based on Seismic Observation", Summaries of Tech. Papers of Annu. Meeting of AIJ, B-2, pp.645-646, 2004 (in Japanese)

  • Ishida R., S. Nakai & H. Nakagawa, "A Study on the Correlation Between Microtremor and Seismic Observation Data on Soil in the Western Parts of Chiba", Proc. 39th JGS Annu. Meeting, pp.2037-2038, 2004 (in Japanese)

  • Nakagawa, H., R. Ishida & S. Nakai, "A Study on the Dynamic Characteristics of a Medium-rise Building by Microtremor Measurement", Summaries of Tech. Papers of Annu. Meeting of AIJ, B-2, pp.315-316, 2003 (in Japanese)