Tatsuya Azuhata

Chief Research Engineer

Research Interests

 Dynamic soil-structure interaction

 Seismically Isolated Systems

 Development of rocking structural systems (self-centering systems)

 Seismic performance evaluation of building structures

Lectures

 Introductions to Earthquake Engineering (Earthquake engineering course)

 Structural Dynamics I (Earthquake engineering course)

 Limit Analysis (Earthquake engineering course)

 Seismic Design Code III (Earthquake engineering course)

 Seismic Observation (Latin course)

Publications

 Main papers:

Okano, H., Azuhata, T., Inoue, N., Iiba, M., Kashima, T., Sako, Y.: Reduction Effect of Building Structure Response by Dynamic Soil-structure Interaction Evaluated from

　Observed Strong Motion, Journal of Structure and Construction Engineering, AIJ, Vol.79, No.696, pp.237-246, 2014.2. (In Japanese with English Abstract).

Ishihara, T., Azuhata, T, Midorikawa, M.: Effect of Rotational Inertia on Uplifting Behavior of Multistory Buildings Modeled as Uniform Shear-Beam, Application of Uplift

　System to Non-slender Buildings, Journal of Structure and Construction Engineering, AIJ, Vol.76, No.667, pp.1601-1610, 2011.9. (In Japanese with English Abstract).

Azuhata, T., Iiba, M., Inoue, N., Midorikawa, M.: Questionnaire Survey to Inhabitant’s Impression on Performance of Seismically Isolated Buildings in the 2004 Mid Niigata

　Earthquake, Jour of JAEE, Vol.6, No.4, pp.19-37, 2006 (In Japanese with English Abstract).

Midorikawa, M., Azuhata, T., Ishihara, T, Wada, A.: Shaking Table Tests on Seismic Response of Steel Braced Frames with Column Uplift, Earthquake Engineering and

　Structural Dynamics, Vol. 35(14), pp. 1767-1785, 2006.11.

Azuhata, T., Midorikawa, M., Ishihara, T.: Energy Dissipation Mechanism and Maximum Response Displacement Prediction of Steel Frames with Yielding Base Plates in

　Uplift Motion for Seismic Response Reduction, Journal of Structure and Construction Engineering, AIJ, No.583, pp.61-68, 2004.9. (In Japanese with English Abstract).

Midorikawa, M., Azuhata, T., Ishihara, T., Wada, A.: Dynamic Behavior of Steel Frames with Yielding Base Plates in Uplift Motion for Seismic Response Reduction, Journal of

　Structure and Construction Engineering, AIJ, No.572, pp.97-104, 2003.10. (In Japanese with English Abstract).

Ozaki, M., Azuhata, T., Takahashi, T, Mu, S.: Inelastic Deformation of One-story Asymmetric-Plan Systems Subjected to Strong Earthquake Ground Motions, EERI, Earthquake

　Spectra, 10-4, pp.777-790, 1994.11.

Azuhata, T., Takahashi, T., Hikichi, T., Ozaki, M: Study on Inelastic Deformation Response of Single Story Structures with One Axis Eccentricity Subjected to Strong Earthquake

　Ground Motions, Journal of Structure and Construction Engineering, AIJ, No.465, pp.45-52, 1994.11. (In Japanese with English Abstract).

Azuhata, T., Takahashi, T., Ozaki, M.: Study on Damage Evaluation of Bending Type Structures Eccentricity Subjected to Strong Earthquakes, Journal of Structural Engineering, AIJ,

　Vol.38B, pp.201-210, 1992.3. (In Japanese with English Abstract).

Azuhata, T., Takahashi, T., Hu, M., Ozaki, M.: Study on Damage Evaluation of Single Story Structures with One Axis Eccentricity Subjected to Strong Earthquakes, Journal of Structure

　and Construction Engineering, AIJ, No.426, pp.45-52, 1991.8. (In Japanese with English Abstract).

Proceedings for international symposiums:

Azuhata, T. and Ishihara, T.: A SIMPIFIED PREDICTION METHOD FOR SEISMIC RESPONSES OF BUILDING FRAME STRUCTURES ALLOWED TO UPLIFT, Proc. of

　 COMPDYN 2017,pp.2950-2962, 2017.6.

Azuhata, T., Okano, H., Yasui, M., Iiba, M., Inoue, N., Tanuma, T.: Noise Analysis of Strong Motion and Microtremor Observation Records for Soil-Building Structure

　 Dynamic Interaction,16th World Conference on Earthquake Engineering, San Tiago, Chile, Paper ID 3053, 2017. 1.

Azuhata, T., Ishihara, T. and Midorikawa, M.: Multi-dimensional Earthquake Response of Self-Centering Building Structural System Using Uplift Mechanism, 15th World Conference

　 on Earthquake Engineering, Lisbon, Portugal, Paper ID 1960, 2012.9.

Azuhata, T., Ishihara, T., Midorikawa, M. Miyake, T. and Matsumoto, K.: Seismic Performance Improvement of Existing Steel Buildings by Rocking Structural System, Proc.

　of 2009 STESSA, 2009.8.

Azuhata, T., Midorikawa, M. and Ishihara, T.: Earthquake Damage Reduction of Buildings by Self Centering Systems Using Rocking Mechanism, 14th World Conference

　on Earthquake Engineering,Beijing, China, Paper ID 05-06-0156, 2008.10.

Azuhata, T., Ishihara, T. and Midorikawa, M.: Effect of impulsive force on earthquake response of rocking structural systems, Earthquake Resistant Engineering Structures IV,

　 pp.459-468, 2007.

Azuhata, T., Ishihara, T. and Midorikawa, M.: Self-centering building system composed of rocking structural members, Proceedings of the World Forum on Smart

　Materials and Smart　Structures Technology (SMSST’-7), Chongqing & Nanjing, China, CD-ROM, 2007.5.

Azuhata, T., Ishihara, T. and Midorikawa, M.: Coupled Vibration Control System for Slender Buildings Constructed Closely in Urban Area, Sensors and Smart

　Structures Technologies for Civil,Mechanical, and Aerospace Systems 2007, Proc. of SPIE Vol. 6529, pp.65293A-1-8, 2007.3.

Azuhata, T., Ishihara, T., Midorikawa, M. and Wada, A.: Seismic response reduction of steel frames with multi-spans by applying rocking structural system, Proc

　of 2006 STESSA, pp.659-664, 2006.8.