Spatial Structures

Structural Stability

Progressive Collapse

Configuration Processing

Structural Fire Engineering

Crystal Lattice Formalism

Structural Resilience

Bioinspired Structures

Form Finding & Shape Optimization

Kolakkattil, R. and Sanjeevi, A. J. (2022) Global Stability Behaviour of Single-Layer Reticulated Domes Created Using a New Nomenclature. Journal of the International Association for Shell and Spatial Structures. 63(1), 31-48. DOI: https://doi.org/10.20898/j.iass.2021.012

Kolakkattil, R., Tsavdaridis, K. D., and Sanjeevi, A. J. (2022) The Effect of Edge Valency on the Load Resistance of Single-layer Reticulated Cylindrical Shells. Journal of Constructional Steel Research. 198, 107531. DOI: https://doi.org/10.1016/j.jcsr.2022.107531

Kolakkattil, R., Tsavdaridis, K. D., and Sanjeevi, A. J. (2023) A State-of-the-art Review of Progressive Collapse Research and Guidelines for Single-layer Lattice Shell Structures. Structures. 56, 104945. DOI: https://doi.org/10.1016/j.istruc.2023.104945

Kolakkattil, R., Tsavdaridis, K. D., & Sanjeevi, A. J. (2025), Introduction of critical topological parameters on progressive collapse resistance of single-layer lattice domes, Structures, Volume 77, 109145, ISSN 2352-0124, DOI: https://doi.org/10.1016/j.istruc.2025.109145

Athira, C., & Kolakkattil, R. (2025). A review of progressive collapse of structures under seismic loadings. Structures, 82, 110637. DOI:  https://doi.org/10.1016/j.istruc.2025.110637

Fathimath Zenha, K., & Kolakkattil, R. (2026). Progressive collapse in steel framed buildings: A comprehensive review of mechanisms, analysis methods, and mitigation strategies. Structures, 89, 112050. https://doi.org/10.1016/j.istruc.2026.112050

Kolakkattil, R., Tsavdaridis, K. D., and Sanjeevi, A. J. (2023) The impact of valency and the orientation of the members on the global stability of lattice steel domes. Proceedings of the Annual Stability Conference, Structural Stability Research Council (SSRC), Charlotte, United States of America.  Link: https://openaccess.city.ac.uk/id/eprint/30752/

Kolakkattil, R., Tsavdaridis, K. D., and Sanjeevi, A. J. (2022) Imperfection sensitivity of non-triangulated cylindrical shell configurations. The Proceedings of the Tenth International Conference on Advances in Steel Structures (ICASS), Chengdu, China.  DOI: 10.18057/ICASS2020.P.28  Link: https://openaccess.city.ac.uk/id/eprint/28639/

Kolakkattil, R., Tsavdaridis, K. D., and Sanjeevi, A. J. (2022) Global stability of single-layer reticulated domes based on the valency of structural elements. Proceedings of the Annual Stability Conference, Structural Stability Research Council (SSRC), Colorado, United States of America. Link: https://openaccess.city.ac.uk/id/eprint/28638/

Kolakkattil, R., Tsavdaridis, K. D., and Sanjeevi, A. J. (2021) Influence of edge valencies on the overall resistance of single-layer reticulated cylindrical shells. Proceedings of the International Association for Shell and Spatial Structures (IASS) Annual Symposium 2020/21, Guilford, United Kingdom.                                         DOI: https://doi.org/10.15126/900337

Kolakkattil, R., and Sanjeevi, A. J. (2019) Configurations based on crystallographic parameters and system stability of reticulated domes. Proceedings of the International Association for Shell and Spatial Structures (IASS) Annual Symposium, Barcelona, Spain, 21,1-8.                                                                                                    Link: https://www.ingentaconnect.com/content/iass/piass/2019/

Kolakkattil, R. and Sanjeevi, A. J. (2018) Configuration processing and system stability of Geodesic domes. Proceedings of the 11th Structural Engineering Convention, Kolkata, India, sh 7-12.

Devika Manoj and Ranjith Kolakkattil (2026), Numerical Study of Welded Steel Connection Failure During the Cooling Phase of Fire, 2nd International Conference on Recent Advances in Infrastructure Development, National Institute of Technology Calicut, India. 

Golla Lakshay, Durgam Saiteja, Burugula Chandra Mouli, Ranjith Kolakkattil (2026), Buckling Behaviour of Steel Columns at Ambient and Elevated Temperatures, 2nd International Conference on Recent Advances in Infrastructure Development, National Institute of Technology Calicut, India. 

Athira C.A. and Ranjith Kolakkattil (2026), Progressive Collapse Behaviour of Reticulated Dome Structures Under Wind Loadings, International Conference on Sustainable Practices and Materials in Civil Engineering (SPMCE 2026), NIT Jamshedpur, Jharkhand, India.
 

Golla Lakshay, Durgam Saiteja, Burugula Chandra Mouli, Ranjith Kolakkattil (2026), Numerical Investigations on the Buckling and Post-Buckling Behaviour of Steel Frame Systems Under Elevated Temperatures, International Conference on Sustainable Practices and Materials in Civil Engineering (SPMCE 2026), NIT Jamshedpur, Jharkhand, India.

Devika Manoj and Ranjith Kolakkattil (2026), Evaluation of RBS Connection Behavior in Steel Frames During the Cooling Phase of Fire, International Conference on Sustainable Practices and Materials in Civil Engineering (SPMCE 2026), NIT Jamshedpur, Jharkhand, India.