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TOP > Labs > Structural Design Engineering > UNJOH, Shigeki

PROFILE

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NAME

UNJOH, Shigeki
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TITLE

Professor, Dr. of Eng., Registered Professional Engineer (Japan)

Guest Researcher of Public Works Research Institute
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FIELD

Earthquake Engineering, Structural Engineering and Concrete Engineering
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UNIVERSITY

Hokkaido University [1983]
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GRADUATE SCHOOL

Hokkaido University, Graduate School of Engineering [1985]
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EMAIL

email
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PHONE

+81-22-795-7446
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FAX

+81-22-795-7448
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SUBJECTS

Performance Evaluation Technology for Civil Structures

Earthquake Design Technology to mitigate of Damage and its Impacts

Earthquake Response Control Technology for Structures

Sensing Technology for Quick Damage Detection and Evaluation

Risk and Crisis Management Strategy for Excessive Natural Disasters
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CONTRIBUTIONS


Books and Book Chapters

  1. CABLE-STAYED BRIDGES-RECENT DEVELOPMENTS AND THEIR FUTURE, Elsevier(1991)
  2. Regulation for Seismic Design, A World List-1996, IAEE(1996)
  3. Earthquake Resistant Design Codes in Japan, Japan Society of Civil Engineers(2000)
  4. Regulation for Seismic Design, A World List-1996, Supplement-2000, IAEE(2000)
  5. BRIDGE ENGINEERING HANDBOOK (EDITED BY Wai-Far Chen, Lian Duan) CRC Press(2000)
  6. EARTHQUAKE ENGINEERING FOR STRUCTURAL DESIGN (Edited by W.-F. Chen, E. M. Lui), CRC Press(2005)
  7. Handbook of STRUCTURAL ENGINEERING, SECOND EDITION (Edited by WAI-FAR CHEN, ERIC M. LUI), CRC Press (2005)
  8. Bridge Engineering Handbook, SECOND EDITION (Edited by Wai-Fah Chen and Lian Duan) CRC Press (2014)

Journal(Peer-reviewed)

  1. Kazuhiko KAWASHIMA and Shigeki UNJOH: DAMPING CHARACTERISTICS OF CABLE-STAYED BRIDGE ASSOCIATED WITH ENERGY DISSIPATION AT MOVABLE SUPPORTS, Structural Eng./Earthquake Eng., 6-1(1989), 123s-130s., Japan Society of Civil Engineers (Proc. of JSCE 404-I-11)
  2. Kazuhiko KAWASHIMA and Shigeki UNJOH: AN INSPECTION METHOD OF SEISMIC VULNERABILITY OF EXISTING HIGHWAY BRIDGES, Structural Eng./Earthquake Eng., 7-1(1990), 143s-150s., Japan Society of Civil Engineers (Proc. of JSCE 416-I-13)
  3. Kazuhiko KAWASHIMA, Shigeki UNJOH and Youichi AZUTA: ANALYSIS OF DAMPING CHARACTERISTICS OF A CABLE-STAYED BRIDGES BASED ON STRONG MOTION RECORDS, Structural Eng./Earthquake Eng., 7-1(1990), 169s-178s., Japan Society of Civil Engineers (Proc. of JSCE 416-I-13)
  4. Kazuhiko Kawashima, Shigeki Unjoh, and Meguru Tsunomoto: ESTIMATION OF DAMPING RATIO OF CABLE-STAYED BRIGES FOR SEISMIC DESIGN, Journal of Structural Engineering, 119-4(1993), 1015-1031.
  5. Kazuhiko Kawashima, and Shigeki Unjoh: SEISMIC RESPONSE CONTROL OF BRIDGES BY VARIABLE DAMPERS, Journal of Structural Engineering, 120-9(1994), 2583-2601.
  6. Kazuhiko KAWASHIMA, Shigeki UNJOH, and Hidetoshi MUKAI: DEVELOPMENT OF VARIABLE DAMPER FOR REDUCING SEISMIC RESPONSE OF HIGHWAY BRIDGES, JOURNAL OF STRUCTURAL ENGINEERING, 40A(1994), 943-952.
  7. J. N. YANG AND J. C. WU AND K. KAWASHIMA AND S. UNJOH: HYBRID CONTROL OF SEISMIC-EXCITED BRIDGE STRUCTURES, EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS, 24-11(1995), 1437-1451.
  8. KAZUHIKO KAWASHIMA and SHIGEKI UNJOH: THE DAMAGE OF HIGHWAY BRIDGES IN THE 1995 HYOGO-KEN NANBU EARTHQUAKE AND ITS IMPACT ON JAPANESE SEISMIC DESIGN, Journal of Earthquake Engineering, 1-3(1997), 505-541.
  9. Shigeki Unjoh and Michio Ohsumi: EARTHQUAKE RESPONSE CHARACTERISTICS OF SUPER-MULTI-SPAN CONTINUOUS MENSHIN (SEISMIC ISOLATION) BRIDGES AND THE SEISMIC DESIGN, ISET Journal of Earthquake Engineering Technology, 35-4(1998), 95-104.
  10. Shigeki Unjoh, Toru Terayama, Yukio Adachi, Jun-ichi Hoshikuma: Seismic retrofit of existing highway bridges in Japan, Cement & Concrete Composites, 22(2000), 1-16.
  11. W. P. Yen, J. D. Cooper, S. W. Park, S. Unjoh, T. Terayama, and H. Otsuka: A Comparative Study of U.S.-Japan Seismic Design of Highway Bridges: I. Design Methods, Earthquake Spectra, 19-4(2003), 913-932.
  12. S. W. Park, W. P. Yen, J. D. Cooper, S. Unjoh, T. Terayama, and H. Otsuka: A Comparative Study of U.S.-Japan Seismic Design of Highway Bridges: II. Shake-Table Model, Earthquake Spectra, 19-4(2003), 933-958.
  13. M. R. Salamy, H. Kobayashi and Sh. Unjoh: EXPERIMENTAL AND ANALYTICAL STUDY ON RC DEEP BEAMS, ASIAN JOURNAL OF CIVIL ENGINEERING (BUILDING AND HOUSING), 6-5(2005), 487-499.
  14. Junichi Sakai and Shigeki Unjoh: Earthquake simulation test of circular reinforced concrete bridge column under multidirectional seismic excitation, EARTHQUEKE ENGINEERING AND ENGINEERING VIBRATION, 5-1(2006), 103-110.
  15. Jun-ichi HOSHIKUMA, Shigeki UNJOH and Akihiko SHIOJIMA: EFECT OF COVER CONCRETE ON ANTI-BUCKLING OF LONGITUDINAL BARS IN REINFORCED CONCRETE COLUMNS, Structural Eng./Earthquake Eng., JSCE, 23-1(2006), 101s-108s.
    (Translated from a paper which originally appeared on Journal of Earthquake Engineering, JSCE, 27(2003) )
  16. Yuushike OGURA and Shigeki UNJOH: RESPONSE CHARACTERISTICS OF BRIDGE ABUTMENTS SUBJECTED TO COLLISION OF GIRDER DURING AN EARTHQUAKE, Structural Eng./Earthquake Eng., JSCE, 23-1(2006), 135s-141s., (Translated from a paper which originally appeared on Journal of Earthquake Engineering, JSCE, 27(2003) )
  17. Kazuhiko KAWASHIMA, Tomohiro SASAKI, Koichi KAJIWARA, Hiromichi UKON, Shigeki UNJOH, Junichi SAKAI, Yoshikazu TAKAHASHI, Kenji KOSA and Masaaki YABE: SEISMIC PERFORMANCE OF A FLEXURAL FAILURE TYPE REINFORCED CONCRETE BRIDGE COLUMN BASED ON E-DEFENCE EXCITATION, Doboku Gakkai Ronbunshuu A, 65-2(2009), 267-285.
  18. KAZUHIKO KAWASHIMA, SHIGEKI UNJOH, JUN-ICHI HOSHIKUMA, and KENJI KOSA: Damage of Bridges due to the 2010 Maule, Chile, Earthquake, Journal of Earthquake Engineering, 15(2011), 1036-1068.
  19. KAZUHIKO KAWASHIMA, RICHELLE G. ZAFRA, TOMOHIRO SASAKI, KOICHI KAJIWARA, MANABU NAKAYAMA, SHIGEKI UNJOH, JUNICHI SAKAI, KENJI KOSA, YOSHIKAZU TAKAHASHI, and MASAAKI YABE: Seismic Performance of a Full-Size Polypropylene Fiber-Reinforced Cement Composite Bridge Column Based on E-Defense Shake Table Experiments, Journal of Earthquake Engineering, 16(2012), 463-495.
  20. Shigeki Unjoh, Masahiro Kaneko, Shojiro Kataoka, Kazuhiro Nagaya, Kazunari Matsuoka: Effect of earthquake ground motions on soil liquefaction, Soils and Foundations, 52-5(2012), 830-841.

Proceedings (Full or Abstract Peer-Reviewed)

  1. K. Kawashima & S. Unjoh: Damping characteristics of cable stayed bridges, Tenth World Conference on Earthquake Engineering, (1988), 4803-4808.
  2. S. Unjoh & K. Kawashima: Seismic inspection and seismic strengthening method of reinforced concrete bridge piers, Tenth World Conference on Earthquake Engineering, (1988), 5279-5284.
  3. Shiegki UNJOH, Yukio ADACHI: Damping Characteristics of Long-Span Suspension Bridges, Long-Span High-Rise Structures, IABSE Symposium, Kobe(1998), 335-340.
  4. Yukio ADACHI, Shigeki UNJOH, Masuo KONDOH, and Michio OHSUMI: Nondestructive damage detection and evaluation technique for seismically damaged structures, Nondestructive Evaluation of Bridges and Highways III, SPIE3587(1999), 60-71.
  5. Yukio Adachi and Shigeki Unjoh: Development of Shape Memory Alloy Damper for Intelligent Bridge Systems, Smart Structures and Materials, SPIE3671(1999), 31-42.
  6. Yukio ADACHI, Shigeki UNJOH, Masuo KONDOH And Taiichi KAGAYAMA: NON-LINEAR SEISMIC RESPONSE CHARACTERISTICS STUDY OF A RC BRIDGE COLUMNS WITH SEISMIC ISOLATORS BY A SHAKING TABLE TEST, 12th World Conference on Earthquake Engineering, (2000), 0311.
  7. Jun-ichi HOSHIKUMA, Shigeki UNJOH: EVALUATION OF LOAD PATTERN IN BRIDGE COLUMN TESTING FOR SEISMIC PERFORMANCE VERIFICATION, SEWC2002 Structural Engineers World Congress, (2002), Paper No.T2-11-4.
  8. Tsutomu NISHIOKA and Shigeki UNJOH: A SIMPLIFIED SEISMIC DESIGN METHOD FOR UNDERGROUND STRUCTURES BASED ON THE SHEAR STRAIN TRANSMITTING CHARACTERISTICS, SEWC2002 Structural Engineers World Congress, (2002), Paper No.T2-4-a-2.
  9. Jun-ichi Hoshikuma, Shigeki Unjoh, Kazuhiro Nagaya: Flexural Ductility of Full-Scale RC Bridge Columns Subjected to Cyclic Loading, First fib Congress, (2002), Paper No. W-192.
  10. T. Nishioka & S. Unjoh: A simplified evaluation method for the seismic performance of underground common utility boxes, 2003 Pacific Conference on Earthquake Engineering, (2003), Paper Number 055.
  11. Hideaki NISHDA and Shigeki UNJOH: DYNAMIC RESPONSE CHARACTERISTIC OF REINFORCED CONCRETE COLUMN SUBJECTED TO BILATERAL EARTHQUAKE GROUND MOTIONS, 13th World Conference on Earthquake Engineering, (2004), Paper No. 576.
  12. Kazuo ENDO, Chihiro KAWATOH, Shiegki UNJOH: ANALYTICAL STUDY ON SEISMIC PERFORMANCE EVALUATION OF LONG-SPAN SUSPENSION BRIDGE STEEL TOWER, 13th World Conference on Earthquake Engineering, (2004), Paper No. 944.
  13. MASAJI YOKOMINE, SHIGEKI UNJOH, KAZUO ENDO and YUUKI KISHI: PERFORMANCE VERIFICATION TESTS OF SPRING DAMPER FOR A CURVED CABLE-STAYED BRIDGE, The First International Conference on Advances in Experimental Structural Engineering, (2005), 167-174.
  14. HIDEAKI NISHDA, JUN-ICHI HOSHIKUMA and SHIGEKI UNJOH: PROPOSAL STANDARD TESTING GUIDELINES FOR SEISMIC PERFORMANCE VERIFICATION, The First International Conference on Advances in Experimental Structural Engineering, (2005), 813-820.
  15. Mohammad Reza Salamy, Hiroshi Kobayashi and Shigeki Unjoh: ANALYTICAL INVESTIGATION ON RC DEEP BEAMS BEHAVIOR, 2nd Asia Conference on Earthquake Engineering, (2006), TP54.
  16. Mohammad Reza SALAMY and Shigeki UNJOH: NUMERICAL PREDICTION OF RC DEEP BEAMS BEHAVIOR, Tenth East Asia-Pacific Conference on Structural Engineering and Construction, Asian Institute of Technology (AIT), Bangkok, Thailand, (2006), 303-308.
  17. Takao OKADA and Shigeki UNJOH: SHAKE TABLE TESTS FOR BRIDGE MODEL USING STRUCTURAL RESPONSE CONTROL DEVICES, The 14th World Conference on Earthquake Engineering, (2008), S05-02-0125.
  18. J. Sakai, S. Unjoh and H. Ukon: EARTHQUAKE SIMULATION TESTS OF BRIDGE COLUMN MODELS DAMAGED DURING 1995 KOBE EARTHQUAKE, The 14th World Conference on Earthquake Engineering, (2008), S17-02-001.
  19. J. Sakai and S. Unjoh: DYNAMIC RESPONSE ANALYSES FOR SHAKE TABLE TESTS OF FULL-SCALES REINFORCED CONCRETE BRIDGE COLUMN MODEL, The 14th World Conference on Earthquake Engineering, (2008), S17-02-002.
  20. K. Kawashima, S. Unjoh: SEISMIC ISOLATION OF BRIDGES IN JAPAN, 5th World Conference on Structural Control and Monitoring, (2010), 5WCSCM-10460.
  21. S. Unjoh, M. Yabe, K. Kawashima: IMPLEMENTATION OF SEISMIC ISOLATION FOR BRIDGES IN JAPAN, 5th World Conference on Structural Control and Monitoring, (2010), 5WCSCM-10459.

Proceedings (No Peer-Reviewed)

  1. Kazuhiko Kawashima and Shigeki Unjoh: Design Method of Isolated Higway Brigdes in Japan, 2nd World Conference on Structural Control, 2(1998), 895-902.
  2. Yukio Adachi, Shigeki Unjoh and Masuo Kondoh: Development of A Shape Memory Alloy Damper for Intelligent Bridge Systems, Materials Science Forum, 327-328(2000), 31-34.
  3. Yukio Adachi and Shiegki Unjoh: Seismic damage sensing of bridge structures with TRIP reinforcement steel bars, Smart Structures and Materials, SPIE4330(2001)
  4. Yukio ADACHI, Shigeki UNJOH: Reliability-Based Evaluation of Seismic Performance of Reinforced Concrete Bridge Column Designed in Accordance with Ductility Design Method, International Conference on Structural Safety and Reliability, (2001)
  5. Kazuhiko Kawashima and Shigeki Unjoh: Seismic Isolation Design Code for Highway Bridges, ASME 2002 Pressure Vesseels and Piping Conference, Vancouver, Canada, (2002), Paper No. PVP2002-1449, 213-219.
  6. Hiroshi Kobayashi and Shigeki Unjoh: DEVELOPMENT OF AN EARTHQUAKE DAMAGE DETECTION SYSTEM FOR BRIDGE STRUCTURES, North American Euro-Pacific Workshop "Sensing Issues in Civil Structural Health Monitoring," Edited by FARHD ANSARI, (2004), 165-174.
  7. Shigeki Unjoh: Road Damage and the Lessons from 2004 Indian Ocean Tsunami, International Workshop on Tsunami, International Seminar on Risk Management for Roads, Organized by PIARC and Ministry of Transport, Viet Nam, Ha Noi, (2006).
  8. Junichi Sakai and Shigeki Unjoh: Earthquake Simulation Test of Reinforced Concrete Bridge Column Under Multidirectional Loading, Fourth International Workshop on Seismic Design and Retrofit of Transportation Facilities, Multidisciplinary Center for Earthquake Engineering Research, (2006).
  9. Shigeki Unjoh: Damage Investigation of Bridges affected by Tsunami during 2004 North Sumatra Earthquake, Indonesia, Fourth International Workshop on Seismic Design and Retrofit of Transportation Facilities, Multidisciplinary Center for Earthquake Engineering Research, (2006).
  10. Junichi Sakai and Shigeki Unjoh: Shake Table Experiment on Circular Reinforced Concrete Bridge Column under Multidirectional Seismic Excitation, Structural Engineering Research Frontiers, Structures Congress, (2007), 1-12.
  11. J. Sakai, H. Kobayashi and S. Unjoh: Quick earthquake damage detection method for bridge structures, The World Forum on Smart Materials and Smart Structures Technology (SMSST '07), (2007).
  12. Shigeki Unjoh: Damage of Bridge Structures during Recent Earthquakes, Advances in Structural Dynamics and Earthquake Engineering, Ahmed Abdel-Ghaffar International Symposium, (2008)
  13. Kazuhiko Kawashima, Shigeki Unjoh, Jun-ichi Hoshikuma and Kenji Kosa: Damage of Bridges due to 2010 Chile Earthquake, The 4th WFEO-JFES-JSCE Joint International Symposium Disaster Risk Management, (2010), 7-21.
  14. Kazuhiko Kawashima, Shigeki Unjoh, Jun-ichi Hoshikuma and Kenji Kosa: Damage of Bridges due to 2010 Chile Earthquake, 3rd Asia Conference on Earthquake Engineering, (2010), ACEE-A-035, 1-8.
  15. Shigeki Unjoh: Tsunami Damage to Bridge Structures in Rikuzen-Takada City and The Emergency Road Network Recovery Actions, International Symposium on Engineering Lessons Learned from the 2011 Great East Japan Earthquake, (2012), 1428-1437.
  16. Shigeki Unjoh: Repair and Retrofit of Bridges Damaged by The 2010 Chile Maule Earthquake, International Symposium on Engineering Lessons Learned from the 2011 Great East Japan Earthquake, (2012), 1785-1796.

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