Kyushu University Academic Staff Educational and Research Activities Database
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Yukihide Kajita Last modified date:2018.06.06

Associate Professor / Structural Analysis and Earthquake Engineering
Faculty of Engineering

Graduate School
Undergraduate School
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Academic Degree
Dr. (Eng.)
Country of degree conferring institution (Overseas)
Field of Specialization
Structural Engineering, Earthquake Engineering
Total Priod of education and research career in the foreign country
Outline Activities
Research: I have conducted both the experiment and the analysis to evaluate the seismic performance of the highway bridges. Particularly, I focus on the collision between the superstructure and the abutment and the seismic safety of the damaged bridges.

Education: I have the chair of dynamic mechanics and vibration control.

Social activities: I join the JSCE (Japan Society of Civil Engineers) , the JAEE(Japan Association for Earthquake Engineering) and so on.
Research Interests
  • Seismic response analysis for underground pipe in soft ground considering irregularity of base surface
    keyword : liquification, underground pipe
  • Estimation of slump of the bridge abutment due to soil liquification
    keyword : liquification, abutment
  • Estimation of the risk of trafficability for highway bridges using the ground excitation records
    keyword : ground excitation records, trafficability, earthquake
  • Seismic evaluation for the bridges subjected to a long duration seismic excitation
    keyword : seismic excitation, long duration
  • Resistance characteristic of abutment with consideration of back fill soil
    keyword : abutment, back fill soil
  • Seismic evaluation for the steel truss bridges considering with the corrosion and the deterioration
    keyword : Steel truss bridge, Redundancy, Deterioration
  • Determination method of partial safety factors for the buckling design of the steel piers
    keyword : partial safety factors, steel pier, local buckling
  • A proposal on the desing method of the shock absorbing rubber
    keyword : Shock absorbing rubber, the collision between the girders
Academic Activities
1. Hazarika Hemanta, N. P. Bhandary, Yukihide Kajita, Kiyonobu Kasama, Kenichi Tsukahara, POKHAREL RAMESH KUMAR, The 2015 Neal Gorkha Earthquake: An overview of the damage, lessons learned and challenges, The official journal of the international association of lowland technology, 18, 2, 105-118, 2016.09, This paper describes the damage brought by the 2015 Nepal earthquake to urban infrastructures, modern and traditional buildings as well as some word heritage sites in and around Kathmandu city. The paper also focuses on a disaster brought to a hydropower plant by the compound action of a previous landslide and this time earthquake. Some of the possible reasons for such damage were brought to light, and challenges of the geotechnical community towards the retrofitting and recovery of the devastated structures were discussed..
2. Yukihide Kajita, A Horizontal Loading Test and Its Simulation Analysis of the Abutment Model with Backfill Soil
, Proc. of the 2014 Taiwan-Japan Workshop on Structural and Bridge Engineering, 2014.05.
3. Yukihide Kajita, Tomohiro Kobayashi, Hisanori OTSUKA, Investigation on the risk of traffic passage by the damage of girder and abutment due to severe earthquakes
, Safety, Reliability, Risk and Life-Cycle Perormance of Structures and Infrastructures, Paper No. 786, Taylor & Francis Group, London, 2013.6, 2013.06.
4. Yukihide Kajita, Hisanori OTSUKA, Yuki Fujiyoshi, A Horizontal Test and Its Simulation Analysis of the Abutment Model with Backfill Soil
, Proc. of the 15th World Conference on Earthquake Engineering, Paper No.0339(CD-ROM), 2012.09.
1. Yukihide Kajita, 小林 智宏, Hisanori OTSUKA, Investigation on the risk of traffic passage by the damage of girder and abutment due to severe earthquakes, International Conference of Safety, Reliability, Risk and Life-Cycle Performance of Structures and Ingrastructures, 2013.06.
Membership in Academic Society
  • Kyushu Association for Bridge and Structural Engineering
  • Kyushu Society for Engineering Education
  • The Japanese Geotechnical Society
  • Japan Society of Civil Engineers
  • Japan Concrete Institute
  • Japanese Society of Steel Construction
  • Japan Association for Earthquake Engineering
Educational Activities
Mechanics (Rigid Body and Elastic-Plastic Material), Dynamics (Mass system),
Professional and Outreach Activities