Chanchal Sonkar

• Current Publications:

1. Sonkar, C. and McCrum, D.P., 2023. Axial compressive behaviour of cold-formed steel single-stud wall panels with one-sided sheathing and two-sided dissimilar sheathing board configurations: Experimental and analytical study. Thin-Walled Structures, 187, p.110733. DOI: https://doi.org/10.1016/j.tws.2023.110733
2. Sonkar, C., Dewangan, A., Mittal, A.K. and Paswan, R., 2023. Experimental Investigation and Design Methodology of Built-Up I-Section Cold-Formed Steel Wall Panels with Sheathing under Axial Loading. Practice Periodical on Structural Design and Construction, 28(3), p.04023019. (DOI: 10.1061/(ASCE)SC.1943-5576.0000751)
3. Sonkar, C. and Mittal, A.K., 2022. Comparative study of analytical/semi-analytical methods for prediction of axial strength of cold-formed steel wall panels with sheathing. Australian Journal of Structural Engineering, 23(2), pp.142-162. (DOI: https://doi.org/10.1080/13287982.2021.2012388)
4. Sonkar, C., Bhattacharyya, S.K. and Mittal, A.K., 2021, December. Effect of axial loading on cold-formed steel wall panels with fibre-cement and calcium silicate boards sheathing: Experimental and analytical studies. In Structures (Vol. 34, pp. 2218-2242). Elsevier. (DOI: https://doi.org/10.1016/j.istruc.2021.08.013)
5. Sonkar, C., Bhattacharyya, S.K. and Mittal, A.K., 2021. Investigations on cold-formed steel wall panels with different sheathing boards under axial loading: Experimental and analytical/semi-analytical studies. Journal of Building Engineering, 44, p.102924. (DOI: https://doi.org/10.1016/j.jobe.2021.102924)
6. Sonkar, C. and Mittal, A.K., 2022. Evaluation of Axial Strength of Sheathed Cold-Formed Steel Wall Panels Using Rayleigh-Ritz Method and Direct-Strength Method: Comparative Study.  Practice Periodical on Structural Design and Construction, 27(1), p.04021064. (DOI: https://doi.org/10.1061/(ASCE)SC.1943-5576.0000623)
7. Sonkar, C., Mittal, A.K. and Bhattacharyya, S.K., 2020. Comparative Study on Cold- Formed Steel Single-Stud and Multiple-Studs Wall Panels with Magnesium Oxide Sheathing under Axial Loading: Experimental and Analytical. Journal of Structural Engineering, 146(11), p.04020224. (DOI: https://doi.org/10.1061/(ASCE)ST.1943-541X.0002723)
8. Sonkar, C., Mittal, A.K. and Bhattacharyya, S.K., 2020. Comparative Study of Differential Equation of Equilibrium Method and Constrained and Unconstrained Finite-Strip Method–Direct Strength Method for Prediction of Axial Strength of Cold-Formed Steel Sheathed Wall Studs. Practice Periodical on Structural Design and Construction, 26(1), p.04020049. (DOI: https://doi.org/10.1061/(ASCE)SC.1943-5576.0000524)
9. Sonkar, C., Dewangan, A., Mittal, A.K. and Kumar, A., 2022. Design methodology for cold-formed steel wall framed buildings under lateral loadings. 14– 17 November 2022, 17SEE IIT Roorkee.
10. Sonkar, C. and Mittal, A.K., 2022. Design methodologies for cold-formed steel built-up I-section stud panels with sheathing under compression. ME@75 Research Frontiers Conference, 29 June – 1 July 2022, IISc Bangalore.
11. Sonkar, C., Behera Siddharth and Tyagi Aapeksh, 2022. Strength evaluation of cold-formed steel stud with holes using design strength method. ME@75 Research Frontiers Conference, 29 June – 1 July 2022, IISc Bangalore.
12. Dewangan, A., Bhatt, G. and Sonkar, C., 2020. Axial Strength Estimation of Cold Formed Steel Wall Panels Through Numerical Modelling. In Emerging Trends in Civil Engineering (pp. 91-100). Springer, Singapore.
13. Sonkar, C., Mittal, A.K. and Bhattacharyya, S.K., 2019. Experimental and Analytical study of cold formed steel (CFS) single stud walls sheathed with FCB, CSB and MgO under compression. International Colloquia on Stability and Ductility of Steel Structures (SDSS 2019), September 11-13, 2019, Prague, Czech Republic. CRC Press.
14. Dewangan, A., Bhatt, G. and Sonkar, C., 2019, August. Analytical assessment of CFS wall- panels sheathed with MgO board. In Stability and Ductility of Steel Structures 2019: Proceedings of the International Colloquia on Stability and Ductility of Steel Structures (SDSS 2019), September 11-13, 2019, Prague, Czech Republic (p. 337). CRC Press.
15. Dewangan, A., Bhatt, G. and Sonkar, C., 2019. Structural Stability of Cold-Formed Steel Wall Studs under Compression by DSM Approach. In Advances in Civil Engineering (pp. 527-536). Springer, Singapore.
16. Dewangan, A., Bhatt, G. and Sonkar, C., 2019. Application of Simplified Compound Strip Method to evaluate the Coupled CFS wall suds. INCAM 2019 Conference, 3-5 July 2019, IISc Bangalore.
17. Sonkar, C., Kumar, A. and Saxena, N. 2018. “Comparative Nonlinear FE Analyses, Material Modelling and Crack Simulation for Reinforced Beam-Column Joints”. 16SEE IIT Roorkee. Page No. 253-264.
18. Sonkar, C. and Mittal, A.K., 2017. Cold-Formed Steel Wall Panel System. Proceedings of All India Workshop on Mass Housing & Rapid Construction (TRACCS 2019), November 14-15, 2017, IEI Roorkee Local Centre, India. ISBN – 978-81-925548-4-6, pp 42-48
19. Sonkar, C., Mittal, A.K., Dalbehera M.M. and Behera S., 2017. Prefabrication in Building Construction – Trends & Future Outlook. Proceedings of Use of PEB Structures and Precast Technology, March 02, 2016, CE Bareilly Zone, India, Volume 1; pp 9-16.
20. Saxena, S., Sonkar, C., and Saxena, N., 2013. Distress Diagnosis by Dynamic Characteristics. International Conference on Trends and Challenges in Concrete Structures (TRACCS 2019), December 19-21, 2013, Ghaziabad, NCR Delhi, India.
21. Saxena, N., Sonkar, C., and Saxena, S., 2013. An Improved Strengthening Scheme for Stone Masonry Buildings. International Conference on Trends and Challenges in Concrete Structures (TRACCS 2019), December 19-21, 2013, Ghaziabad, NCR Delhi, India.

• Tech. Reports: 02
• Scientific Books / Book Chapters: NIL
•  Articles: NIL
• Patents filed / granted: NIL
• Processes Developed: NIL
• Process Under Utilization: NIL
• Presentation and lectures delivered at Short Term Courses / Workshops:

1. Delivered two (02) lectures on “Cold-formed Steel construction Technology” in a One Day Workshop on CFS Construction on Nov 20, 2022 to PhD/ M.Tech/ B.Tech students and participants from various Govt. and Pvt. Organizations at Department of Civil Engineering, National Institute of Technology, Srinagar, Uttarakhand.
2. Delivered two lectures on, ‘Repair and Retrofit Methodology of Distress Structures’ in a short course organized by Structural Engineering Department, CSIR-CBRI Roorkee in August 2019 and November 2020.
3. Delivered lecture on, ‘Cold-Formed Steel Wall Panel System’ in All India Workshop on Mass Housing & Rapid Construction by Structural Engineering Department, CSIR-CBRI Roorkee in November 2017.
4. Delivered a presentation on, “An improved strengthening scheme for stone masonry buildings”, in International Conference on Trends and Challenges in Concrete Structures (TRACCS 2019), December 19-21, 2013, Ghaziabad, NCR Delhi, India.

Any Other:

Software Development –

Successfully completed design, detailing, construction, field implementation and demonstration of two (02) storey prototype improved Cold-formed Steel (CFS) wall load-bearing framed structure in Demo Park, CSIR-CBRI.

• Journal of Structural Engineering, American Society of Civil Engineers
• Practice Periodical on Structural Design and Construction, American Society of Civil Engineers