Resume Name : Dr. Ashok Kumar Designation: Professor Organisation



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1. Name : Dr. Ashok Kumar
2. Designation: Professor
3. Organisation: Department of Earthquake Engineering, I.I.T. Roorkee
4. Date of Birth: July 24, 1951
5. Academic (B.E. degree onwards) Qualifications:


SN

Degree

University/Institution

Division/ Equivalent

Year

Specialization

1

B.E. (Hons.)

BITS, Pilani

First

1972

Mechanical Engineering

2

M.E.

UOR, Roorkee

(now I.I.T. Roorkee)



First with Hons.

1974

Machine Design

3

Ph.D.

UOR, Roorkee

(now I.I.T. Roorkee)






1993

Earthquake Engineering


6. Present Professional Activities


  • Working for development of India’s first earthquake early warning system

  • Development of computer software using digital signal processing techniques for processing of strong motion earthquake data.


  • Search for attributes of Earthquake Early Warning (EEW) System and development of algorithm for EEW.

  • Seismic qualification of Electrical Equipment on shake table for design earthquake. These equipment are subsequently installed at important projects like Nuclear Power Plants after successful testing (about 35 testings/reports).

  • Development of software for system identification using test data of shake table tests on the systems.



7. Teaching


  • Taught courses on Introduction to Earthquake Engineering, Theory of Vibrations, Solid Mechanics, Instrumentation, Model analysis, Digital Signal Processing and Numerical Analysis at various undergraduate and post-graduate levels.




  • Have lectured as an invited lecturer for various specialist courses for practicing engineers and scientists.




  • Co~ordinated specialist courses for engineers and scientists of different organisations like Nuclear Power Corporation, IMD, DST etc..


8. Laboratory Developed


  • Shake Table Laboratory comprising of 20 ton payload biaxial earthquake simulator

  • Strong motion data processing laboratory

  • Small shake table at CoEDMM and at DEQ


9. Awards and Posts Held in Important Bodies


  • Convener, Subcommittee of CED 39 for revision of IS4967 -1968 “Recommendations for Seismic Instrumentation for River Valley Projects” of Bureau of Indian Standards (BIS)
  • Member, Earthquake Engineering Sectional Committee CED 39 of BIS


  • Member, Working Group of CED 39 for Revision of Recommended Response Spectra of IS1893

  • Member, Mechanical Vibration and Shock Sectional Committee MED 28 of BIS.

  • Received Khosla award of University of Roorkee for the year 1992 for a research paper entitled "The Effect of Band limited interpolation of nonuniform Samples on Records of Analog Accelerographs" (authored with Basu,S. and Chandra, B.)

  • Honorary Secretary, Indian Society of Earthquake Technology for 1993-95.



10. Sponsored Research and Consultancy Projects:


  • Completed / Ongoing about 20 research projects with outlay of approximately Rupees 28 crores

  • Completed / ongoing about 80 consultancy projects with outlay of approximately Rupees 3.3crores.


11. Guidance of PhD and MTech students


  • PhD Students -- Awarded: 6, Submitted: 1, In Progress: 5

  • MTech Students – Awarded: 32, In progress: 2


12. Important contributions
As given in Annexure I
13. Publications upto September 2015

Refereed Journals




  1. Prabakaran K., Ashok Kumar and Shashi Kant Thakkar (2015), Comparison of eigen sensitivity and ANN based methods in model updating of an eight-story building, Earthquake Engineering and Engineering Vibration. Vol 14 no. 3 DOI:10.1007/s11803-015-0036-z, September 2015.





  1. Roshan Kumar, P. Sumathi and Ashok Kumar (2015), Frequency shifting analysis of seismic signals using GWT, Earthquake Engineering and Engineering Vibration, Springer, 14(3).




  1. Roshan Kumar, P. Sumathi and Ashok Kumar (2015), A time-frequency approach for generation of synthetic time histories of earthquake signals, Acta Geodaetica et Geophysica, Springer, 2014. DOI 10.1007/s40328-015-0115-7




  1. Bhardwaj R., Sharma M.L. and Kumar A. (2015) Multi-parameter algorithm for Earthquake Early Warning Geomatics, Natural Hazards and Risk DOI 10.1080/19475705.2015.1069409 Publication Taylor & Francis, July 2015




  1. H. Mittal and Ashok Kumar (2014) Stochastic finite-fault modeling of M w 5.4 earthquake along Uttarakhand–Nepal border. Natural Hazards (DOI: 10.1007/s11069-014-1367-1), Publication: Springer September 2014


  1. H. Mittal, Ashok Kumar, Arjun Kumar and Rohtash Kumar (2014) Analysis of ground motion in Delhi from earthquakes recorded by strong motion network. Arabian Journal of Geoscience (DOI: 10.1007/s12517-014-1357-3), Publication: Springer March 2014.




  1. J.P. Singh, Pankaj Agarwal, Ashok Kumar and S.K. Thakkar (2014) Identification of Modal Parameters of a Multistoried RC Building using Ambient Vibration and Strong Vibration Records of Bhuj Earthquake, 2001 Journal of Earthquake Engineering (ID: 856823 DOI:10.1080/13632469.2013.856823) March 2014




  1. Bhardwaj R., Sharma M.L. and Kumar A. (2013) Inclusion of Q- Value in Parameters used for Earthquake Early Warning Systems, Disaster Advances, Vol.6(5), May 2013
  2. H. Mittal, Kamal, A. Kumar, S.K. Singh (2013) Estimation of site effects in Delhi using standard spectral ratio, Soil Dynamics and Earthquake Engineering, http://dx.doi.org/10.1016/j.soildyn.2013.03.004, Vol. 50 (2013), pp 53-61





  1. Bhardwaj R., Kumar A. and Sharma M.L. (2013) Root Sum of Square Cumulative Velocity: An Attribute for Earthquake Early Warning, Disaster Advances, Vol.6(3), March 2013



  1. J.P. Singh, Pankaj Agarwal, Ashok Kumar and S.K. Thakkar (2013) Updating of FE models of an instrumented G+9 RC building using measured data from strong motion and ambient vibration survey, Earthquakes and Structures An Inte'l Journal (Techno Press Services), Vol. 4, No. 3, March 2013




  1. Himanshu Mittal, Ashok Kumar and Arjun Kumar (2013) Site Effects Estimation in Delhi from the Indian Strong Motion Instrumentation Network Seismological Research Letters; Vol. 84, No. 1, Jan.- Feb. 2013, pp33-41




  1. Rakhi Bhardwaj, Mukat Lal Sharma, Ashok Kumar (2013) Earthquake magnitude estimate for Earthquake Early Warning (EEW) system: An automization from P-wave time window analysis, Himalayan Geology, vol. 34, No. 1, 2013, pp84-91




  1. Himanshu Mittal, Ashok Kumar, Rebecca Ramhmachhuani (2012) Indian National Strong Motion Instrumentation Network and Site Characterization of Its Stations International Journal of Geosciences, Vol. 3, pp1151-1167, doi: 10.4236 /ijg.2012.326117 Online November 2012 (http://www.SciRP.org/journal/ijg)




  1. Arjun Kumar, Ashwani Kumar, Himanshu Mittal, Ashok Kumar, Rakhi Bhardwaj (2012) Software to Estimate Earthquake Spectral and Source Parameters International Journal of Geosciences, Vol. 3, pp1142-1149, doi: 10.4236/ijg.2012.35116 Online November 2012 (http://www.SciRP.org/journal/ijg)


  1. Himanshu Mittal, Ashok Kumar, Kamal (2012) Ground motion estimation in Delhi from postulated regional and local earthquakes, Journal of Seismology , Springer, DOI 10.1007/s10950-012-9340-5, Print ISSN 1383-4649, Online ISSN 1573-157X (October 2012)




  1. Sathe Prashant Dasharath, Ashok Kumar and S. K. Thakkar (2012) Estimation of Governing Parameters of the Structure Subjected To Ground Motion Using Transfer Function Approach International Journal of Emerging Technology & Advanced Engineering, Volume 2, Issue 10, October 2012.




  1. Suresh Kumar Walia, Hemant Kumar Vinayak, Ashok Kumar & Raman Parti (2012) 'Nodal disparity in opposite trusses of a steel bridge: a case study' J Civil Struct Health Monit, Springer, DOI 10.1007/s13349-012-0021-4 (September 2012).

  2. Hemant Kumar Vinayak, Ashok Kumar, Pankaj Agarwal and S.K. Thakkar (2012) NN Based Damage Detection in Multistory Buildings from Modal Parameter Changes, ISET Journal of Earthquake Technology, Vol. 49, No. 1-2, paper no. 519, Mar-Jun. 2012 (In Press).




  1. Ashok Kumar, Himanshu Mittal, Rajiv Sachdeva and Arjun Kumar (2012) 'Indian Strong Motion Instrumentation Network' Seismological Research Letters; Vol. 83, No. 1, Jan.- Feb. 2012, pp29-36

  2. Arjun, C.R and Ashok Kumar (2011) 'Neural Network Based Estimation of Normalized Response Spectra' ISET Journal of Earthquake Technology, Vol. 48, No. 2-4, paper no. 517, June-Dec. 2011.






  1. Arjun, C.R. and Ashok Kumar (2011) 'Neural network estimation of duration of strong ground motion using Japanese earthquake records', Soil Dynamics and Earthquake Engineering, Vol. 31, Isuue 7, July 2011, pp866-872


  1. S. K. Singh, A. Kumar, G. Suresh, M. Ordaz, J. F. Pacheco, M. L. Sharma, B. K. Bansal, R. S. Dattatrayam and E. Reinoso (2010) 'Delhi Earthquake of 25 November 2007(Mw 4.1): Implications for Seismic Hazard', Current Science, Vol. 99, No. 7, 10 October 2010
  1. Vinayak H. K., Kumar A. , Agarwal P. and Thakkar S.K.(2010) 'Damage Behaviour Study of an RC Frame Model under Quasi-Static Testing', The Indian Concrete Journal, Vol 84, No. 8, Aug. 2010





  1. Vinayak H. K., Kumar A. , Agarwal P. and Thakkar S.K.(2010) 'Neural Network-Based Damage Detection from Transfer Function Changes', Journal of Earthquake Engineering, Vol.14: No. 5, June 2010, pp771 —787.
  1. Arjun, C.R. and Ashok Kumar (2009) Artificial Neural Network Based Estimation of Peak Ground Acceleration. ISET Journal of Earthquake Technology. Vol 46, No. 1, March 2009, Paper no. 501, pp. 19–28



  1. Chris H. Cramer and Ashok Kumar (2003) 2001 Bhuj, India, Earthquake Engineering Seismoscope Recordings and Eastern North America Ground-Motion Attenuation Relations. Bulletin of Seismological Society of America; Volume 93, Number 3 , June 2003



  1. Ashok Kumar, S.K. Thakkar, A. Bharagava, R.N. Dubey, P. Agarwal, S. Basu, and M. Shrikhande (2003). Records of instrumented buildings and study of structural response of staff quarters building of regional passport office, Ahmedabad for Bhuj earthquake of January 26, 2001. Memoir of Geological Society of India entitled Earthquake Studies in Peninsular India (Memoir no 54); (ISBN 81-85867-54-2); pp 143-174




  1. Chandra B, Thakkar, S. K., Basu, S., Kumar A., Shrikhande, M., Das,J., Agrawal, P. and Bansal, M.K. (2002). Strong Motion Records. Supplement of Earthquake Spectra 2001 Bhuj India Earthquake Reconnaissance Report; Section 2, Vol. 18, July 2002; pp53-66.




  1. Chandra,B., Basu, S. , Kumar, A., Shrikhande, M., Das, J.D. and Bansal, M.K., (2001) Strong Motion Studies in Himalayas.
    . Research Highlights in Earth System Science. Spl. Vol. 2 on ‘Seismicity’ Indian Geological Congress, pp 343-356




  1. Shrikhande, M., Das, J.D. , Bansal, M.K. , Kumar, A., Basu, S. and Chandra,B. (2001) Strong Motion Characteristics of Uttarkashi Earthquake of October 20, 1991 and their Engineering Significance. Research Highlights in Earth System Science. Vol. 2 on ‘Seismicity’ Published by Indian Geological Congress, pp 337-342



  1. Kumar, A., Basu, S. and Chandra, B. (1995) BLACS --- A New Correction Scheme of Analog Accelerograms. PART -- 1: Details of Scheme. Bulletin of Indian Society of Earthquake Techmology, June 1995.





  1. Kumar, A., Basu, S and Chandra, B. (1995) BLACS --- A New Correction Scheme of Analog Accelerograms. PART -- 2: Comparison with other schemes. Bulletin of Indian Society of Earthquake Techmology, June 1995.




  1. Chandra, B., Kumar, A. and Bansal, M.K. (1995) A Study of Strong Motion Data Obtained during Uttarkashi Earthquake of Oct. 20, 1991 from INSMIN Network. Memoir on Uttarkashi Earthquake of Geological Society of India, Memoir no. 30




  1. Basu, S., Kumar, A. and Chandra, B. (1994) Noise Cancellation in Records of Digital Accelerographs through Adaptive Filter. Bulletin of Indian Society of Earthquake Technology; Vol. 31; No. 2; pp 91-115; June. 1994.




  1. Kumar, A., Basu, S. and Chandra, B. (1993) Noise Characteristics of a Strong Motion Accelerograph. Bulletin of Indian Society of Earthquake Technology; Vol. 30; No. 3; pp 101-111; Sept. 1993.




  1. Kumar, A., Basu, S. and Chandra, B. (1992) The Effect of Band limited interpolation of nonuniform Samples on Records of Analog Accelerographs. Bulletin of Indian Society of Earthquake Technology; Vol. 29; No. 4; pp53--67.



  1. Chandra, B. and Kumar, A. (1992) Development of Strong Motion Instruments in India. Himalayan Seismicity, Memoir no. 23 of Geological Society of India; pp 123-150; 1992.




Conferences, Symposia, Workshops



  1. Ashok Kumar, Himanshu Mittal, B.P. Chamoli, Ajay Gairola, R.S. Jakka and Amit Srivastava (2014)" Earthquake Early Warning System for Northern India" Proceedings 15th Symposium on Earthquake Engineering, IIT Roorkee, Dec 2014, pp231-238.




  1. Olympa Baro and Ashok Kumar (2014) "A New Attribute for Earthquake Early Warning" Proceedings 15th Symposium on Earthquake Engineering, IIT Roorkee, Dec 2014, pp239-244.




  1. Roshan Kumar, P. Sumati, Ashok Kumar (2013)"De-noising of Seismic Signal Based on Gabor Transform" IEEE International Conference, ICACCI, Mysore, August 2013, pp 1997-2001




  1. Bhardwaj R., Kumar A. and Sharma M.L. (2012), “Effect of medium characteristics in magnitude estimation for Earthquake Early Warning Systems” Golden Jubilee Symposium Indian Society of Earthquake Technology (ISET), Department of Earthquake Engineering Building IIT Roorkee, Roorkee, Paper no. H002, 1-10.



  1. Bhardwaj R., Sharma M.L. and Kumar A. (2012),P-wave time window approach for EEW systems”, National Workshop on Engineering Geophysics for Civil Engineering and Geo-hazards (EGCEG), CSIR- Central Building Research Institute, Roorkee.





  1. Himanshu Mittal, Ashok Kumar, Arjun Kumar, Estimation of Ground Motion in Delhi using 7th September 2011 Earthquake, Proceedings 15th World Conference in Earthquake Engineering, Lisbon, September 2012, paper no. 0283.




  1. Arjun Kumar, Ashwani Kumar, Ashok Kumar, S.C.Gupta, A.K. Jindal, Himanshu

Mittal Source Parameters of Uttarkashi Earthquake of 21st Sept 2009. Proceedings 15th World Conference in Earthquake Engineering, Lisbon, September 2012,

paper no. 0695.


  1. Rakhi Bhardwaj, Ashok Kumar, M.L. Sharma Analysis of Tau C and Pd

Attributes for Earthquake Early Warning in India. Proceedings 15th World

Conference in Earthquake Engineering, Lisbon, September 2012, paper no. 0696.




  1. Rajiv Sachdeva, Ashok Kumar, M.L. Sharma Estimation of Peak Ground Acceleration using Artificial Neural Network. Proceedings 15th World Conference in Earthquake Engineering, Lisbon, September 2012, paper no. 1847.









  1. Rajiv Sachdeva, Ashok Kumar, and M.L.Sharma, Prediction of Average Shear Wave Velocity of a Site Using Strong Ground Motion Records and ANN, Proceedings 14th Symposium on Earthquake Engineering, Dec. 17- Dec. 19, 2010, IIT Roorkee, Vol I, pp126-137.





  1. S. Venugopal, Ashok Kumar and M.L. Sharma, Comparison of Site Specific PGA Using Neural Networks and Regression Models. Proceedings 14th Symposium on Earthquake Engineering, IIT Roorkee, Dec. 17 - Dec. 19, 2010, Vol I, pp233-252.




  1. Rakhi Bhardwaj, Ashok Kumar and M.L. Sharma, An Algorithm for Automatic Detection of Primary Wave Onset for Early Warning System. Proceedings 14th Symposium on Earthquake Engineering, IIT Roorkee, Dec. 17 - Dec. 19, 2010, Vol. I, pp373-380.




  1. Sathe Prashant Dasharath, Ashok Kumar and S.K. Thakkar, Estimation of Governing Parameters of the Structure subjected to Ground Motion Using Transfer Function Approach. Proceedings 14th Symposium on Earthquake Engineering, IIT Roorkee, Dec. 17 - Dec. 19, 2010, Vol. II, pp751-759.




  1. Vinayak, H.K., Ashok Kumar, Thakkar, S.K. and Agarwal, Pankaj, NN Based Damage Detection from Modal Parameter Changes. Proceedings The 14th World Conference on Earthquake Engineering, Oct 12 – 17, 2008, Beijing, China, paper no. 05-01-0061




  1. Arjun C.R. and Ashok Kumar (2008), ANN Based Prediction of Earthquake Parameters using K-NET Strong Ground Motion Data. Proceedings Indo- Japan Theme Meeting and Workshop on Disaster Risk Reduction – Earthquakes, Landslides and Tsunami, August 28-29, 2008, Central Power Research Institute, Bangalore. Paper no. V-4.



  1. Alokendu Bhattacharya, Yogesh Pisal, Ashok Kumar and M. L. Sharma (2007), Development of Site Specific Response Spectrum for Roorkee Region. Proceedings International Conference on Civil Engineering in the New Millennium : Opportunity and Challenges (CENeM-2007), 11-14 Jan, 2007, Bengal Engg. College, Shibpur, West Bengal





  1. Himanshu Mittal, S. Gupta, A. Srivastava, R.N. Dubey and Ashok Kumar (2006) National Strong Motion Instrumentation Project – An Overview, Proceedings 13th Symposium on Earthquake Engineering, IIT Roorkee, Dec. 18-20, 2006. pp107-115.




  1. Ashok Kumar (2006) Generation of Spectrum Compatible Time History with Fling. (Keynote presentation) Proceedings 13th Symposium on Earthquake Engineering, IIT Roorkee, Dec. 18-20, 2006. pp172-178




  1. H.R. Wason, A. Sinvhal, D. Shankar, Ashok Kumar and V.H. Joshi (2006) Ground Deformations Observed due to Great Sumatra Earthquake of December 26, 2004 and Tsunami in and Around Andaman Nicobar Islands. Proceedings 13th Symposium on Earthquake Engineering, IIT Roorkee, Dec. 18-20, 2006. pp228-237.




  1. H.K. Vinayak, Ashok Kumar, S.K. Thakkar, Pankaj Agarwal and M. Shrikhande (2006) Damage Detection of Structures using Frequency and Mode Shape Changes. Proceedings 13th Symposium on Earthquake Engineering, IIT Roorkee, Dec. 18-20, 2006. pp878-888


  1. Satish Chandra K., Hemant Kumar Vinayak, Ashok Kumar and S.K. Thakkar (2006) Experimental Damage Detection of a Beam Using Experimental Data. Proceedings 13th Symposium on Earthquake Engineering, IIT Roorkee, Dec. 18-20, 2006. pp909-916





  1. J.P. Singh, Ashok Kumar, Pankaj Agarwal and S.K. Thakkar (2006) Ambient Vibration Testing of a Ten Storied Building in Ahmedabad Gujarat after2001 Bhuj Earthquake. Proceedings 13th Symposium on Earthquake Engineering, IIT Roorkee, Dec. 18-20, 2006. pp917-924.




  1. Ashok Kumar (2006) Software for Generation of Spectrum Compatible Time History Having Same Phase as of a Given Time History. Proceedings of the 8th U.S. National Conference on Earthquake Engineering; April 18-22, 2006, San Francisco, California, USA. Paper no 172.




  1. Ashok Kumar and Hemant Kumar Vinayak (2006) Health Monitoring of Narnarayan Setu and Saraighat Bridge using Proposed Strong Motion Instrumentation. Proceedings of Workshop on Advances in Bridge Engineering, March 24-25, 2006, pp363-368




  1. M. L. Sharma, Hilmar Bungum, Ashok Kumar, Atanu Bhattacharya (2006) Development of Strong Ground Motion Attenuation Relationship for Spectral Accelerations for the Himalayan Region. Workshop on Seismic Hazard and Risk Assessment (under Indo Norwegian Programme of Institutional Cooperation), India Habitat Centre, New Delhi, March 18-19, 2006



  1. Pisal Yogesh and Ashok Kumar (2005) Issues Involved in Generation of Spectrum Compatible Time History. Paper presented in World Conference on Disaster Mitigation held in IIT Bombay on November 17 to 19, 2005





  1. Ashok Kumar (2004) Software for Generation of Spectrum Compatible Time History. Proceedings 13th World Conference on Earthquake Engineering, Vancouver, Canada, August 2004. Paper no. 2096




  1. Ashok Kumar, Ashish Bhargava, S.K. Thakkar, Pankaj Agarwal and R.N. Dubey (2002) Response of Passport Building for Spectrum Compatible Time History of Bhuj Earthquake at Anjar. Proceedings 12th Symposium on Earthquake Engineering, IIT Roorkee Dec. 16 to 18, 2002.




  1. Ashok Kumar (2002) Generation of Spectrum Compatible Time History Proceedings 12th Symposium on Earthquake Engineering, IIT Roorkee Dec. 16 to 18, 2002.




  1. M. Shrikhande, J.D. Das, Ashok Kumar and S. Basu (2002) Strong Motion Records from NW Himalayan and NE Indian Regions: A Review. Proceedings 12th Symposium on Earthquake Engineering, IIT Roorkee Dec. 16 to 18, 2002.




  1. Manish Shrikhande, Durgesh C. Rai, Ashok Kumar and S. Basu (2002) Upgradation of Shake Table Facility. Proceedings 12th Symposium on Earthquake Engineering, IIT Roorkee Dec. 16 to 18, 2002



  1. Chris H. Cramer, S.N. Bhattacharya and Ashok Kumar (2002) The 2001 Mw7.7 Bhuj, India Earthquake and Eastern North American Ground-Motion Attenuation Relations: Seismic Hazard Implications . Presented by Chris H. Cramer in the Fall American Geophysical Union held in USA in December 2002.





  1. Cramer, C.H, and A. Kumar (2002), The 2001 Gujarat, India Earthquake and Eastern North America Ground-motion Attenuation and Magnitude-area Relations: Impact on Seismic Hazard (abstract), Seismological Research Letters, v. 73, p. 238. (Presented at the annual meeting of the Seismological Society of America in April 2002 in USA by C.H. Cramer).




  1. Kumar, A., S. Basu, S.K. Thakkar, M. Shrikhande, P. Agarwal, J. Das, and D.K. Paul (2001). Strong Motion Records of Bhuj Earthquake, International Conference on Seismic Hazard with Particular Reference to Bhuj Earthquake, New Delhi, Oct. 3-5, 2001




  1. Shrikhande, M., Basu, S., Kumar, A., Chandra,B., and Das, J.D. (2001) Analysis of Strong Motion Data of Chamoli Earthquake of March 29, 1999. Proceedings Workshop on Recent Earthquakes of Chamoli and Bhuj, May 24-26, 2001, Roorkee.



  1. Kumar, A., Basu, S. and Chandra, B. (2000) Use of Synchronous Noise as Test Signal for Evaluation of Strong Motion Data Processing Schemes. Proceedings 12th World Conference on Earthquake Engineering, Auckland, New Zealand, Jan.3-Feb. 4, 2000. Paper no. 0931.



  1. Shrikhande, M., Das, J., Bansal, M.K., Kumar, A., Basu, S. and Chandra, B. (1998) Analysis of Strong Motion Records from Dharamshale Earthquake of April 26, 1986. Proceedings 11th Symposium on Earthquake Engineering, Dec 17-18, 1998; pp281-285.





  1. Chandra, B., Basu, S., Kumar, A., Das, J. and Bansal, M.K. (1997) Ground Motion Characteristics from Strong Motion Instruments during April 26, 1986 Earthquake. Proceedings Workshop on Earthquake Disaster Preparedness, Roorkee Oct. 13-14, 1997




  1. Kumar, A., Basu,S. and Chandra,B. (1996) Critical Evaluation of Various Steps in Processing of Accelerogram. Proceedings 11th World Conference on Earthquake Engineering, Acapulco, Mexico, June 1996




  1. Kumar, A., Basu, S. and Chandra, B. (1996) Problems of Analog Accelerograph and Details of a Digital Accelerograph. Proceedings Symposium on Earthquake Effects on Structures, Plants and Machinery, New Delhi, Nov. 13-15, 1996




  1. Pankaj, Kumar, A. and Basu, S. (1996) On Seismic Testing of Electrical Equipments. Proceedings Symposium on Earthquake Effects on Structures, Plants and Machinery, New Delhi, Nov. 13-15, 1996.




  1. Chandra, B., Basu, S., Kumar, A.,Das, J and Bansal, M.K. (1996) Strong Motion Studies at Department of Earthquake Engineering University of Roorkee. Proceedings of the Workshop on Design Practices in Earthquake Geotechnical Engineering, University of Roorkee, Sept 26-27, 1996.



  1. Pankaj, Kumar, A. and Basu, S. (1995) Seismic Qualification of Equipment – A Need for Greater Understanding. Proceedings National Conference on Role of Continuing Education in Industrial Restructuring, University of Roorkee, pp157-162, Feb. 1995.





  1. Basu, S., Lawania, K.K., Kumar, A. (1994) System Identification of a Circuit Breaker Pole. Proceedings Tenth Symposium on Earthquake Engineering, University of Roorkee, Vol. 2, pp827-836.




  1. Kumar, A., Pankaj and Basu, S. (1994) Effect of Linear Interpolation on Response Spectra Proceedings Tenth Symposium on Earthquake Engineering, University of Roorkee, Roorkee, Vol.2, pp869-878, November, 1994.




  1. Chandra, B., Kumar, A., Basu, S. and Bansal, M.K. (1994) Strong Motion Information from Structural Response Recorders during Uttarkashi Earthquake. Proceedings Tenth Symposium on Earthquake Engineering, University of Roorkee, Roorkee, Vol.1, pp93-104.




  1. Pankaj, Kumar, A. and Basu, S. (1994) Interpolation of Design Accelerogram for Direct Integration Analysis of Concrete Structures. Proceedings of Conference on Computation Mechanics of Concrete Structures, Innsbruk, Austria, March 1994.




  1. Basu, S.,Pankaj and Kumar, A. (1992) On the Importance of Band Limited Excitation in Direct Integration analysis of structures. Proceedings Tenth World Conference on Earthquake Engineering, Madrid, Spain; Vol. 7; pp3779-3785.



  1. Kumar, A., Basu, S. and Chandra, B. (1992) Correction of Data Obtained from Digital Accelerographs. Proceedings Tenth World Conference on Earthquake Engineering, Madrid, Spain; vol. 1; pp187-193.





  1. Kumar, A., Gupta, N.C., Basu, S., Bansal, M.K. and Verma, V.K. (1990) Microprocessor Based Strong Motion Recorder. Proc. 9th Symposium on Earthquake Engineering, Roorkee, Vol. I, pp 5-109 to 5-116, Dec. 1990.




  1. Kumar, A., and Basu, S. (1989) Isolation of Shake Table System. Proceedings Workshop on Base Isolation, New Delhi; June 1989.




  1. Kumar, A., Chandra, B., Mathur, S., Basu, S. and Bansal, M.K. (1988) Strong Motion Data from Bihar Nepal Earthquake of Aug. 21, 1988". Workshop on Bihar Nepal Earthquake, IIT Kanpur; Dec. 1988




  1. Kumar, A. and Pankaj (1986) Determination and Effect of Frictional Damping in Structural Response Recorder. Proc. Eighth Symposium on Earthquake Engineering, Roorkee; Vol. I; pp 543-545




  1. Arya, A.S., Basu, S., Srivastava, L.S., Bandopadyaya, S., Prajapati, G.I. and Kumar, A. (1986) Design and Development of a Shake Table System. Proceedings Eighth Symposium on Earthquake Engineering, University of Roorkee, Vol.2, 1986.



  1. Kumar, A., Chandrasekaran, A.R. and Chandra, B. (1986) Earthquake Withstand Test on a Bus Duct. . (1986) Proceedings Eighth Symposium on Earthquake Engineering, University of Roorkee, Vol.1, 1986 pp659-666





  1. Kumar, A. , and Upadhyay, S.K.(1985) Network of Strong Motion Instrumnts in North East India and Cachar Earthquake of Dec, 31, 1984. Second Workshop on Cachar Earthquake and Seismicity of North East India, New Delhi, May 1985.




  1. Agarwal, R.C. and Kumar, A. (1984) Seismic Instruments in and around Dams. Proceedings Workshop on Instrumentation of Dam held at Central Water Commission, New Delhi.




  1. Kumar, A. and Upadyaya, S.K. (1984) Indian National Strong Motion Instrumentation Network. Presented in Workshop on All India Co ordinated Projects on Seismology and Seismo tectonics of Himalayan Region; Dehradun, Dec. 1984.




  1. Kumar, A. and Pankaj (1984) On SRR records Considering Effect of Frictional Damping. Proc. Earthquake Effects on Plants and Equipments , Hyderabad; Dec. 1984; pp 61-64




  1. Pratima Rani and Kumar, A. (1981) Control of Seismic Effect on Switch Yard Equipment. Proceedings 7th World Conference on Earthquake Engineering, Istanbul, Vol. 8, pp71-79.



  1. Srivastava, L.S. and Kumar, A. (1981) Indian National Strong Motion Network in North East India. Proceedings Symposium on Seismicity and Associated Problems in North East India, March 1981.





  1. Pandey, A.D. and Kumar, A. (1981) Seismic Analysis of EH-T-7 Structure. Proceedings Symposium on Earthquake Disaster Mitigation, Roorkee; Vol.1, PP221-227, March 1981




  1. Agarwal, R.C., Gupta, S.P. and Kumar, A. (1981) A Preliminary Report on Pithoragarh Earthquake of July 29, 1980. Proceedings Symposium on Earthquake Disaster Mitigation, Roorkee, March 1981.



Reviews and Notes





  1. Ashok Kumar (2011) Seismic Hazard: Fukushima Vs. Jaitapur Indian Nuclear Society News



  1. Ashok Kumar (2004) Strong Motion Instrumentation Programme at IIT Roorkee. SCI_TECH; R&D magazine of IIT Roorkee.




  1. Ashok Kumar (1980) Review of a Book in Hindi. Bulletin Indian Society of Earthquake Technology; Vol.. 17; No. 3; Page 42; Sept. 1980.




  1. Agarwal, R.C., Ashok Kumar and Basu, S. (1979) Relationship with Earthquake Activity and Geologic Structure in Andaman Nicobar Region; Abstract Earthquake Note; Vol. 50, No.4, Page 48, Dec. 1979.



  1. Ashok Kumar and Agarwal, R.C. (1979) Frictional damping in Structural Response Recorder. Abstract Earthquake Note; Vol. 50, No.4, Dec. 1979.




ANNEXURE-I
SIGNIFICANT CONTRIBUTIONS


  1. Since 1976, working for development of strong motion instrumentation network in India. Formulated, negotiated and received several strong motion projects from Department of Science and Technology (DST), World Bank, Tehri Hydro Development Corporation and other river valley projects. These efforts have significantly contributed in making Department of Earthquake Engineering, IIT Roorkee as the nodal agency of strong motion instrumentation in India and abroad.




  1. Almost all major earthquakes that have struck our country after early 80’s have been recorded by this instrumentation. These records have created an extremely important data base which has been widely used by engineers and scientists for research and application in the field of earthquake engineering and seismology.




  1. Above efforts have resulted into award to IIT Roorkee, a most prestigious mission mode project of Department of Science and Technology (now with Ministry of Earth Sciences). In this project



  1. named as “National Strong Motion Instrumentation Network”, we developed a network of 300 digital strong motion accelerographs covering area of seismic zone IV, V and some densely populated cities of zone III. About 240 of these instruments are connected through NICNET / SWAN of NIC. This state of the art instrumentation is one of the largest network of strong motion instruments in world with almost real time capability covering a window of about 2000 km x 300 km. A website named as www.pesmos.in has been developed and all the recorded time histories are uploaded in this website for registered users. As of now, about 600 time histories from 200 earthquakes have been uploaded in this web site.





  1. Formulated and developed use of synchronous noise (having absolute flat power spectrum) for evaluation of different numerical schemes used for processing of data as well as analysis of systems.




  1. Developed and disseminated widely, several digital signal processing software with graphic interface. List of software and a brief description of each is enclosed herewith. Latest being, software for development of spectrum compatible time history with fling. These software are being commonly used by students and researchers in India and abroad.




  1. Band limited interpolation scheme, which is quite common in image processing, was introduced for use for earthquake engineering data. It has been shown that prevalent interpolation schemes using first or higher order interpolation substantially distorts the digital data and can adversely affect the engineering results.




  1. New scheme for processing of accelerogram in frequency domain was developed. Its advantages over prevalent time domain processing schemes were highlighted.




  1. We have performed in-depth analysis on various aspects of ground motion of all recorded earthquakes. For Bhuj Earthquake of 2001, records of SRR were used to find attenuation relationship of the region, which has then been compared with Eastern North America ground motion attenuation relation. Under an Indo Norwegian project, attenuation characteristics of spectral acceleration using recorded acceleration time histories was done



  1. For the first time in India, an extensively instrumented multistoried building at Ahmedabad provided records of its response of its different floors during Bhuj earthquake of 2001. Using structural drawings of the building, it was analyzed for recorded ground motion and analytical as well as recorded response were then compared and studied in detail. Model of the structure was fine tuned and effects of soil structure interaction is being studied in detail.




  1. Carried out hazard analysis of NCR Delhi using recorded data of earthquake. PGA and spectral acceleration scenario were estimated for M 7, 7.5 and 8 earthquakes from Himalayas as well as M 5 earthquake near Delhi.




  1. At present, research is being carried out in regard to various aspects of earthquake early warning system. We have done substantial work on attributes for earthquake early warning system and have found best combinations of five attributes and has shown that this combination give most reliable results using worldwide strong ground motion data comprising of about 2000 time histories recorded at hypocentral distance of less than 60 km.




  1. We are working on a project for development of earthquake early warning system for Northern India. Under this project, 100 sensors are being installed in Uttarakhand which will stream real time acceleration time history (24 hours x 7 days). Software is being developed in Earthworm (an open source real time seismic signal processing platform) for real time processing of streamed acceleration time history for issue of warning. We anticipate that we amy be able to provide about 70 seconds of warning to Delhi before damaging S waves strikes Delhi from earthquakes originating from Himalayas. The project is in its final stages and our capability to issue earthquake early warning has been demonstrated to project advisory committee comprising of several external experts



  1. Developed, maintained, operated, upgraded and extensively used the prestigious shake table facility of the Department of Earthquake Engineering. Large number of seismic tests of power plant equipment of reputed private and public sector companies were conducted on this facility.





  1. Worked as Organizing Secretary of 12th Symposium on Earthquake Engineering, which was conducted with great success on December 16-18, 2002. About 250 delegates from 15 different countries participated in the symposium. Edited two volumes of the conference proceedings comprising of 169 technical papers. For the first time, conference proceedings were made available in a CD.




  1. In the year 1991, developed a microprocessor based digital accelerograph under a research scheme of DST. This accelerograph has a resolution of 12 bits. Technology transfer document were prepared and technology was transferred to a Delhi based private enterprise.


LIST OF SOFTWARE DEVELOPED AND DISSEMINATED


SN

Name

Brief Description


1

SPEC

Takes ASCII values of a target response spectrum as input and outputs ASCII values of response compatible acceleration time history. Takes input of damping value of target response spectra, duration of time history, rise time of time history and decay time of time history from terminal. Graphic display of comparison of target spectra vs. achieved spectra after each iteration as well as achieved time history is also provided.

2.

SPEC3

Generates spectrum compatible time history with fling using phase of a recorded time history.


3.

RESP

Takes equally sampled acceleration ASCII time history file as input file. Provides ASCII output of spectral acceleration for given periods and dampings (to be specified in another input file). Graphic display of input time history and output response spectra (for all the dampings in one figure) is also provided.

4.

BINRESP

Takes equally sampled ASCII acceleration time history file as input file. Provides ASCII output of spectral acceleration at bin frequency interval for damping to be provided through terminal. ). Graphic display of input time history and output response spectra is also provided.

5

LOPASS

Takes equally sampled ASCII time history file as input. Takes cut off frequency for low pass filter as well as order of filter as input through terminal. Outputs ASCII file of low passed time history. Graphic display of input time history as well as low passed output time history is also provided.

6

HIPASS

Takes equally sampled ASCII time history file as input. Takes cut off frequency for high pass filter as well as order of filter as input through terminal. Outputs ASCII file of high passed time history. Graphic display of input time history as well as high passed output time history is also provided.

7

BPASS

Takes equally sampled ASCII time history file as input. Takes cut off frequencies for band pass filter as well as order of filter as input through terminal. Outputs ASCII file of band passed time history. Graphic display of input time history as well as band passed output time history is also provided.


8

FFT

Takes one directional equally sampled ASCII time history file as input and outputs Fourier magnitude of time history in ASCII format. Graphic display of input time history and output FFT magnitude is also provided.

9

INSCOR

Takes equally sampled ASCII acceleration time history file as input. Takes natural frequency and damping of sensor as input through terminal. Performs instrument correction of the input file and outputs the ASCII corrected acceleration time history file. Graphic display of input time history as well as instrument corrected output time history is also provided.

10

WNOISE

Generates synchronous noise (a white noise whose Fourier magnitude is exact one) of duration and sampling rate to be taken through terminal. Graphic display of generated time history is also provided

11

BASECOR

Takes equally sampled ASCII time history file as input. Takes least square line of the history as baseline (x axis) and outputs ASCII file with new base line (rotational components not considered). Graphic display of input time history as well as baseline corrected output time history is also provided.

12

NONLIN

Takes unequally sampled ASCII time history file as input. Outputs linearly interpolated equally sampled time history file at sampling rate to be given through terminal.

13

GENSIN

Generates single frequency sinusoidal data of duration and sampling rate to be given through terminal. Graphic display of generated time history is also provided.


14

MULTISIN

Generates multi-frequency sinusoidal data of frequencies and magnitudes (to be given through an input file) and duration as well as sampling rate to be given through terminal. Graphic display of generated time history is also provided.

15

FDIF

Takes equally sampled ASCII time history file as input. Performs differentiation in frequency domain and outputs differentiated time history ASCII file. Graphic display of input time history and differentiated time history is also provided.

16

FINT

Takes equally sampled ASCII time history file as input. Performs integration in frequency domain and outputs integrated time history ASCII file. Graphic display of input time history and integrated time history is also provided

17

PROC1

Takes digitized files of records of SMA 1 performed on digitizing table of DEQ and converts them on unequally spaced uncorrected accelerogram

18

ALINT

Performs linear interpolation to increase sampling rate of an equally spaced ASCII time history file.

19

INPO1

Performs band limited interpolation of equally spaced ASCII time history file such that values of original samples do not change and new samples are determined in between original samples such that frequency contents of original sequence are maintained


20

INPO2

Performs band limited interpolation of equally spaced ASCII time history file. However, values of original samples are not kept and all the new samples are determined such that frequency contents of original sequence are maintained.

21.

arjun** (series)

About 15 software of this series process strong motion data downloaded from KNET (Japan).

Note: For each of the above software, a text file is also made which gives detailed instructions about working of the program.




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