DR. RICHELLE G. ZAFRA
DCE Chair/Associate Professor 6
CONTACT INFORMATION:
Department of Civil Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines Los Baños, College, Laguna (Tel # +63 (049) 536-5614)
Email Address: [email protected]
EDUCATION:
| Year | Degree | University |
| 2011 | PhD Civil Engineering (Specialization in Earthquake Engineering) | Tokyo Institute of Technology, Japan |
| 2004 | Master of Engineering (Civil Engineering) | The University of Tokyo, Japan |
| 1997 | BS Civil Engineering | University of the Philippines Los Baños |
RESEARCH INTERESTS:
Seismic assessment of structures; Numerical simulation; High performance fiber reinforced cement composites
PUBLICATIONS: (Google Scholar Page)
Alfonso, C. D. Q., Sundo, M. B., Zafra, R. G., Velasco, P. P., Aguirre, J. J. C. and Madlangbayan, M. S. (2019) “Flood Risk Assessment of Major River Basins in the Philippines,” International Journal of GEOMATE, Vol. 17, Issue 64, pp. 201-208.
Dela Cruz, V. G., Tapia, A.K. G., Peralta, M. M., Almeda, R. A., Peralta, E. K., Sundo, M. B., Zafra, R. G. and Madlangbayan, M. S. (2019) “Investigation on Performance of Epoxy-Coated Steels with Nano-SiO2 and Polyaniline Composite using Complex Impedance Spectroscopy,” International Journal of GEOMATE, Vol. 17, Issue 64, pp. 49-54.
Lacia, J. P., Madlangbayan, M. S., Sundo, M. B. and Zafra, R. G. (2018) “Electrical Resistivity of Concrete Containing Crystalline Rice Husk Ash As Supplementary Cementing Material,” Philippine e-Journal for Applied Research and Development 8, pp. 24-33.
Rusydy, I., Eslava, D. V., Muksin, U., Gallardo-Zafra, R., Aguirre, J. J. C. A. Bantayan, N. C., and Dake, S. (2017) “Building vulnerability and human loss assessment in different earthquake intensity and time: a case study of the University of the Philippines, Los Baños (UPLB) Campus,” IOP Conference Series, Earth and Environmental Science 56 012006.
Kawashima, K., Zafra, R. G., Sasaki, T., Kajiwara, K., and Nakayama, (2014) “Seismic Performance of a Bridge Column based on E-Defense Shake Table Excitations,” in Performance-Based Seismic Engineering: Vision for an Earthquake Resilient Society, Matej Fischinger (Ed.), Dordrecht: Springer.
Kawashima, K., Zafra, R., Sasaki, T., Kajiwara, K., Nakayama, M., Unjoh, H., Sakai, J., Kosa, K.,Takahashi, Y. and Yabe, M. (2012) “Seismic Performance of a Full-Size Polypropylene Fiber Reinforced Cement Composite Bridge Column Based on E-Defense Shake Table Experiments,”Journal of Earthquake Engineering, Vol. 16, No. 4, pp. 463-495.
Kawashima, K., Zafra, R., Sasaki, T., Kajiwara, K. and Nakayama, M. (2011) “Effect of Polypropylene Fiber Reinforced Cement Composite and Steel Fiber Reinforced Concrete on Enhancing the Seismic Performance of Bridge Columns,” Journal of Earthquake Engineering, Vol.15, No. 8, pp. 1194-1211.
Zafra, R., Kawashima, K., Sasaki, T., Kajiwara, K. and Nakayama, M. (2010) “Cyclic Stress-Strain Response of Polypropylene Fiber Reinforced Cement Composites,” Journal of Structural Engineering and Earthquake Engineering, JSCE, Vol. 66, No. 1, pp. 162-171.
Zafra, R. and Kawashima, K. (2009) “Analysis of Carbon Fiber Sheet-Retrofitted RC Bridge Columns under Lateral Cyclic Loading,” Journal of Earthquake Engineering, Vol. 13, No. 2, pp. 129-154.
Zafra, R. G., Mayo, J. R. P., Tabucal, N. M. S., and De Padua, V. M. N. (2018) “Investigation on the Use of Shipping Container as Post-Disaster Housing,” 1st International Conference on Concrete and Steel Technology Engineering and Design, Pasay City, Philippines.
Zafra, R. G., Lethanh, N. and Malahito, E. C. (2018) “Performance Based Earthquake Engineering Assessment of a Liquid Containing Structure,” 1st International Conference on Concrete and Steel Technology Engineering and Design, Pasay City, Philippines.
Aguirre, J. J. C., Zafra, R. G., Madlangbayan, M. S., Abordo, J. C. C. and Tanzo, W. T. (2016) “Microtremor H/V Analysis as a Basic Tool in Community Land Use and Safety Planning – UPLB Campus Case Study,” 6th ASIA Conference on Earthquake Engineering, Cebu City, Philippines.
Zafra, R., Kawashima, K., Sasaki, T., Kajiwara, K. and M. Nakayama (2015) “Effect of Polypropylene Fiber Reinforced Cement Composites on the Seismic Performance of Bridge Columns based on Full-scale and Scaled Model Experiments,” Keynote Paper, Narotama International Conference on Civil Engineering, Surabaya, Indonesia.
Zafra, R. G. and Cantos, N. H. C. (2015) “Seismic Risk Assessment of UPLB Campus Buildings,”11th Association of Pacific Rim Universities Research Symposium on Multi-Hazards Around the Pacific Rim, Quezon City, Philippines.
Kawashima, K., Sasaki, T., Zafra, R., Kajiwara, K. and M. Nakayama (2013) “Seismic Performance of Reinforced Concrete Bridge Columns based on Full-Scale Shake-Table Experiments,”International Conference on Earthquake Engineering-50 Years Skopje Earthquake & 50 Years European Earthquake Engineering, Skopje, Macedonia.
Zafra, R., Kawashima, K., Sasaki, T., Kajiwara, K. and M. Nakayama (2013) “Seismic Performance of a Full-scale Polypropylene Fiber Reinforced Cement Composite Bridge Column based on EDefense Shake-table Experiments,” International Symposium for Bridge Earthquake Engineering in Honor of the Retirement of Prof. Kazuhiko Kawashima, Tokyo, Japan, pp. 95-110.
Kawashima, K., Zafra, R., Sasaki, T., Kajiwara, K. and M. Nakayama (2012) “Enhancement of th Seismic Performance of Bridge Columns Using an Advanced Material,” 3rd International Symposium on Advances in Urban Safety, Nanjing, China.
Zafra, R., Kawashima, K., Sasaki, T., Kajiwara, K. and M. Nakayama (2012) “Effect of Polypropylene Fiber Reinforced Cement Composites for Enhancing the Seismic Performance of a Full-scale Bridge Column Based on E-Defense Excitation,” Proceedings of the 15th World Conference on Earthquake Engineering, Lisbon, Portugal.
Sasaki, T., Zafra, R. and Kawashima, K. (2012) “Effect of Polypropylene Fiber Reinforced Concrete for Enhancing the Seismic Performance of Bridge Columns,” Proceedings of the 15th World Conference on Earthquake Engineering, Lisbon, Portugal.
Zafra, R., Sasaki, T., Nakayama, M., Kajiwara, K. and K. Kawashima (2012) “Seismic Performance of a Full-Size Polypropylene Fiber Reinforced Cement Composite Bridge Column Based on EDefense Shake-Table Experiments,” Proceedings of the First International Symposium on Earthquake Engineering, Tokyo, Japan. Vol. 1, pp. 391-400.
Kawashima, K., Zafra, R., Sasaki, T., Kajiwara, K. and M. Nakayama (2012) “Shake-Table Experiments of a Full-Scale Polypropylene Fiber Reinforced Cement Composite Bridge Column using E-Defense,” Proceedings of the International Workshop on Advances in Seismic Experiments and Computations, Nagoya, Japan, pp. 69-82.
Kawashima, K., Zafra, R., Sasaki, T., Kajiwara, K. and M. Nakayama (2012) “Effect of Polypropylene Fiber Reinforced Cement Composites for Enhancing the Seismic Performance of a Full-scale Bridge Column Based on E-Defense Shake-Table Excitation,” Proceedings of the 9th International Conference on Urban Earthquake Engineering/4th Asia Conference on Earthquake Engineering, Tokyo, Japan.
Kawashima, K., Zafra, R., Sasaki, T., Kajiwara, K. and M. Nakayama (2011) “Seismic Performance of a Bridge Column Based on E-Defense Shake-Table Excitations,” Proceedings of the Performance Based Seismic Engineering Workshop, Slovenia, pp. 1-10.
Kawashima, K., Zafra, R., Sasaki, T., Kajiwara, K. and M. Nakayama (2011) “Effectiveness of Polypropylene Fiber Reinforced Cement Composite for Enhancing the Seismic Performance of Bridge Column,” Proceedings of the International Transportation Infrastructure Workshop for Wenchuan Earthquake, China, pp. 1-10.
Yamada, S., Sasaki, T., Zafra, R. and K. Kawashima (2011) “Formulation of Polypropylene Fiber Reinforced Cement Composite Hysteresis for Seismic Response Analysis,” Proc. 14th JSCE Symposium on Performance-based Seismic Design Method for Bridges, Tokyo, Japan, pp. 315-322.
Kawashima, K., Zafra, R., Sasaki, T., Kajiwara, K. and M. Nakayama (2011) “Seismic Performance of a Full-Size Polypropylene Fiber Reinforced Cement Composite Bridge Column Based on EDefense Shake Table Experiments,” Proceedings of the 8th International Conference on Urban Earthquake Engineering, Tokyo, Japan, pp. 1117-1124.
Zafra, R., Kawashima, K., Sasaki, T., Kajiwara, K. and M. Nakayama (2010) “Effect of Fiber Reinforced Concrete/Cement Composites on the Seismic Performance of Bridge Columns,” Proceedings of the 3rd Asia Conference on Earthquake Engineering, Bangkok, Thailand, ACEE-A-015 (CD-ROM).
Zafra, R., Kawashima, K., Sasaki, T., Kajiwara, K. and M. Nakayama (2010) “Cyclic Stress-Strain Response of Polypropylene Fiber Reinforced Cement Composites,” Proceedings of the 3rd Asia Conference on Earthquake Engineering, Bangkok, Thailand, ACEE-A-016 (CD-ROM).
Zafra, R., Kawashima, K., Sasaki, T., Kajiwara, K. and M. Nakayama (2010) “Effect of Fiber Reinforced Concrete/Cement Composites on the Seismic Performance of Bridge Columns,” Proceedings of the 5th AOTULE International Postgraduate Students Conference, Bandung, Indonesia, pp. 37-40.
Kawashima, K., Zafra, R., Sasaki, T., Kajiwara, K. and M. Nakayama (2010) “Seismic Performance of Polypropylene Fiber Reinforced Cement Composite Bridge Column Based on E-Defense Shake- Table Excitation,” Proceedings of the 13th Japan Earthquake Engineering Symposium, Tsukuba, Japan, pp. 1290-1297.
Zafra, R., Kawashima, K., Sasaki, T., Kajiwara, K. and M. Nakayama (2010) “Cyclic Stress-Strain Response of Polypropylene Fiber Reinforced Cement Composites,” Proceedings of the JSCE 12th International Summer Symposium, Chiba, Japan, pp. 49-52.
Zafra, R., Kawashima, K., Sasaki, T., Kajiwara, K. and M. Nakayama (2010) “Effect of Fiber Reinforced Concrete/Cement Composites on the Seismic Performance of Bridge Columns,” Proceedings of the 2nd Multi-Disciplinary International Student Workshop, Tokyo Institute of Technology, Tokyo, Japan, p. 30.
Zafra, R., Sasaki, T., Kawashima, K., Kajiwara, K. and M. Nakayama (2010) “Effect of Fiber Reinforced Concrete/Cement Composites on the Seismic Performance of Bridge Columns,” EDefense Research Conference, Tokyo, Japan, pp. 151-164.
Zafra, R., Sasaki, T., Kawashima, K., Ukon, H. and K. Kajiwara (2010) “Effect of Fiber Reinforced Cement Composites on the Seismic Performance of Bridge Columns,” Proceedings of the Joint 7th International Conference on Urban Earthquake Engineering (CUEE) and 5th International Conference on Earthquake Engineering (ICEE), Tokyo, Japan, pp. 1811-1818.
Zafra, R., Sasaki, T., Kawashima, K., Kajiwara, K. and M. Nakayama (2010) “Effect of Fiber Reinforced Cement Composites on the Seismic Performance of Bridge Columns,” 13th Symposium on Ductility Design Method of Bridges, Tokyo, Japan, pp. 81-88.
Zafra, R., Sasaki, T., Kawashima, K., and H. Matsuzaki (2009) “An Experimental Study on the Seismic Performance of Bridge Columns using Fiber Reinforced Concrete,” Proceedings of the 7th Annual Symposium of Japan Association for Earthquake Engineering, Tokyo, Japan, pp. 104-105.
Zafra, R. and K. Kawashima (2009) “Analytical Study on the Seismic Performance of Carbon Fiber Sheet Retrofitted RC Bridge Columns,” Proceedings of the 12th JSCE Symposium on Ductility Design Method of Bridges, Tokyo, Japan, pp. 15-22.
Zafra, R. and K. Kawashima (2008) “Analysis of Carbon Fiber Sheet Retrofitted RC Bridge Columns under Cyclic Loading,” Proceedings of the 14th World Conference on Earthquake Engineering, Beijing, China, S17-02-008 (CD-ROM).
Zafra, R. and K. Kawashima (2006) “Analysis of Carbon Fiber Sheet Retrofitted RC Bridge Columns under Lateral Cyclic Loading,” Proceedings of the 3rd International Conference on Urban Earthquake Engineering, Tokyo, Japan, pp. 1-8.
Zafra, R. and K. Kawashima (2009) “Analytical Study on the Seismic Performance of Carbon Fiber Sheet Retrofitted RC Bridge Columns,” Proceedings of the 3rd JSPS-DOST International Symposium on Environmental Engineering (Symposium on Harmonizing Infrastructure Development with the Environment), Quezon City, Philippines, pp. 1-9.
Zafra, R. and K. Kawashima (2006) “Analytical Study on the Seismic Performance of Carbon Fiber Sheet Retrofitted RC Bridge Columns,” Proceedings of the JSPS-DOST International Symposium on Environmental Engineering and the 5th Regional Symposium on Infrastructure Development in Civil Engineering, Quezon City, Philippines, pp. 1-9.
COURSES TAUGHT:
| Course Code | Course Title |
| ENSC 11a | Engineering Mechanics: Statics and Dynamics |
| ENSC 16 | Fluid Mechanics |
| ENSC 18 | Materials of Engineering |
| CE 131 | Structural Analysis I |
| CE 132 | Structural Engineering II |
| CE 134 | Reinforced Concrete Design |
| CE 135 | Steel Design |
| CE 136 | Pre-stressed Concrete Design |
| CE 137 | Structural Dynamics and Earthquake Engineering |
| CE 162 | Construction Project Planning and Management |
| CE 163 | Civil Engineering Laws, Contracts, and Ethics |
| CE 171 | Foundation Engineering |
ORGANIZATION/AFFILIATION:
Member, Association of Structural Engineers of the Philippines
Member, Philippine Institute of Civil Engineers (PICE)
Member, Science and Technology Advisory Council, Japan
Member, Philippine Association of Japanese Government Scholars, SLC
Member, UPLB Civil Engineering Alumni Association
Member, TokyoTech Alumni Association
Member, UPLB Alumni Association
Member, CEAT Alumni Association
Member, The Order of the Knights of Pasig, UPLB