Offshore Structures Under Special Environmental Loads Including Fire Resistance

By Prof. Srinivasan Chandrasekaran   |   IIT Madras
Learners enrolled: 762
This course deals with novelty of offshore structures and their response behaviour under special loads. These loads include earthquake loads, ice loads, shock and impact loads, ringing and springing wave loads and loads caused by crticial sea states. The course also deals with advanced structural analyses methods including unsymmetric bending and estimate of shear centre. It also deals with analysis of curved beams, crane hooks, chain links and rings and marine risers under Vortex induced motion. Fire in one of the major hazard in offshore industry. Fire-resistant design is a mandatory requirement for members exposed to high fire hazards. This course will expose participants to fundamentals and explain the fire-resistant design concepts through a variety of examples. A full black-board teaching model, with illustrated examples and tutorials is followed with 24x7 active discussion forum to clarify doubts. This course also supports MATLAB program source coding for computing various environmental loads that act on offshore structures. Further, computer programs using MATLAB code is also extended for analyzing problems with unsymmetric bending and estimate of stresses in curved beams.

INTENDED AUDIENCE :Applied Mech, Aerospace Engg, Civil Engg, Structural Engg, Mech. Engg, Naval Arch, Ocean Engg, Petroleum Engg, Chem Engg, Engineering Design
INDUSTRY SUPPORT :All oil companies and Structural consultancy organizations, both in India and abroad
Course Status : Ongoing
Course Type : Elective
Duration : 12 weeks
Start Date : 24 Jan 2022
End Date : 15 Apr 2022
Exam Date : 23 Apr 2022 IST
Enrollment Ends : 07 Feb 2022
Category :
  • Ocean Engineering
Credit Points : 3
Level : Postgraduate

Page Visits

Course layout

Week 1: Novelty of offshore structures

Week 2: Environmental loads

Week 3: Special loads-I

Week 4: Special loads-II

Week 5: Advanced structural analysis-I

Week 6: Advanced structural analysis -II

Week 7: Advanced structural analysis - III

Week 8: Advanced structural analysis - IV

Week 9: Fire safety

Week 10: Blast resistance

Week 11: Material properties

Week 12: Fire resistant design

Books and references

Text books

1.         EN-1991-1-2. 2002. Eurocode 1: Actions on structures- Part 1-2: General actions on structures exposed to fire, European Comm for Standardization
2.         EN1992-1-2. 2008. Eurocode. Design of concrete structures: Part 1-2: General rules- Structural fire design, European Comm for Standardization.
3.         EN1993-1-2. 2005. Eurocode 3. Design of Steel structures-Part 1-2: General rules- Structural fire design
4.         EN-1994-1-2. 2005. Eurocode 4: Design of composite steel and concrete structures- Part 1-2: General rules for structural fire design, European Comm. for Standardization.
5.         Eurocode 1 2002. Actions on structures: Part 1-2: General actions- Actions on structures exposed to fire.
6.         Eurocode 3. 2005. Design of steel structures, Part 1-2, General rules: Fire resistant design, Document CEN, European Comm. of Standardization, U.K.
7.         IS 1642-1989. Fire Safety of Buildings (general): Details of Construction- Code of Practice, Bureau of Indian Standards, New Delhi, India.
8.         IS 3809-1979. Fire resistance test of structures, Bureau of Indian Standards, New Delhi, India.
9.         ISO 834-1975. Fire resistance tests elements of building construction, International Organization for Standardization.
10.       Srinivasan Chandrasekaran and A.K.Jain. 2016. Ocean structures: Construction, Materials and Operations, CRC Press, Florida, ISBN: 978-149-87-9742-9
11.       Srinivasan Chandrasekaran and Gaurav Srivastava. 2017. Design aids for offshore structures under special environmental loads including fire resistance, Springer, Singapore ISBN 978-981-10-7608-4.
12.       Srinivasan Chandrasekaran and Subrata Kumar Bhattacharyya. 2012. Analysis and Design of Offshore Structures with illustrated examples. Human Resource Development Center for Offshore and Plant Engineering (HOPE Center), Changwon National University Press, Republic of Korea ISBN: 978-899-63-9155-5, pp. 285.
13.       Srinivasan Chandrasekaran. 2014. Advanced Theory on Offshore Plant FEED Engineering, Changwon National University Press, Republic of South Korea, pp. 237. ISBN:978-899-69-7928-9
14.       Srinivasan Chandrasekaran. 2015b. Advanced Marine structures, CRC Press, Florida (USA), ISBN 978-149-87-3968-9.
15.       Srinivasan Chandrasekaran. 2017. Dynamic analysis and design of ocean structures, Springer, 2nd Ed., Singapore. ISBN:978-981-10-6088-5
16.       Srinivasan Chandrasekaran. 2018. Advanced structural analysis with MATLAB, CRC Press, Florida, USA, ISBN: 978-036-70-2645-5.
17.       Srinivasan Chandrasekaran. 2019. Advanced steel design of structures, CRC press, Florida, ISBN 9780367232900
18.       Srinivasan Chandrasekaran. 2019. Structural Health Monitoring with application to offshore structures, World Scientific Publishing Co., Singapore, ISBN: 978-971-12-0108-0

Research papers for additional reading
1.    Anagnostopoulos, S.A. 1982. Dynamic Response of Offshore Structures to Extreme Waves including Fluid - Structure Interaction. Engr. Structures, 4: 179-185.
2.      Arvid Naess and Torgeir Moan. 2013. Stochastic dynamics of Marine structures, Cambridge University Press, NY. 
3.      ASTM E119-88. 1988. Standard test methods for fire tests of building construction and materials, American Society for Testing and Materials, ASTM E119-88.
4.      Attorney. 2016. Oil Rig Explosion, http://www.oilrigexplosionattorneys.com/Oil-Rig-Explosions/History-of-Offshore-Accidents.aspx, Accessed December 2016.
5.      Babrauskas, V. and Grayson, S.J eds.1992. Heat Resease in Fires, Elsevier Applied Science.
6.      BS6235. 1982. Code of Practice for Fixed Offshore Structures: British Standards Institution, London.
7.      Chandrasekaran S., Senger Mayank, Arvind Jain. 2015b. Dynamic response behavior of stiffened triceratops under regular waves: Experimental investigations, Proc. of 34th Int. Conf. on Ocean, Offshore and Arctic Engineering (OMAE 2015), St. John's, NL, Canada, May 31-June 5, 2015. OMAE2015-41376.
8.      Chandrasekaran Srinivasan and Merin Thomas. 2016. Suppression system for offshore cylinders under vortex induced vibration, Vibroengineering Procedia, 7:01-06.
9.      Chandrasekaran, S. and Jamshed Nassery. 2017. Nonlinear response of stiffened triceratops under impact and non-impact waves, International Journal of Ocean Systems Engineering, 7(3):179-193. DOI: 10.12989/ose.2017.7.3.179.
10.    Chandrasekaran, S. and Jamshed Nassery. 2017. Ringing response of offshore triceratops, J. Innovative Infrastructure Solutions, Springer, DOI: 10.1007/s41062-017-0092-5.
11.    Cheng, F.P., Kodur, V.K.R. and Wang, T.C. 2004. Stress-strain curves for high strength concrete at elevated temperature, ASCE J of Materials Engrg., 16(1):84-90.
12.    Graff, W.J. 1981. Introduction to offshore structures: Design, fabrication and installation: Gulf Publishing Co, Tokyo.
13.    Hall, Jr., J. R. 2011. Fatal effects of fire. Quincy : National Fire Protection Association, Fire Analysis and Research Division.
14.    Kim, H.-J. and Lilley, D.G. 2000. Heat release rates of burning items in fire, Proc. of 38th Aerospace Scienes Meeting & Exhibit.
15.    Kodur, V.K.R. 2000. Spalling in high strength concrete exposed to fire: Concerns, causes, critical parameters and cures, In Proc.  ASCE Structures Congress, Philadelphia.
16.    Kodur, V.K.R. 2005. Guidelines for fire resistance design of high strength concrete columns, J of Fire Protection Engrg., 15(2):93-106.
17.    Kodur, V.K.R. and Lie, T.T. 1997. Fire resistance of Fibre-reinforced concrete: Present and future, Canadian Society of Civil Engineers, Montreal
18.    Kodur, V.K.R., T.T.Lie. 1997. Evaluation of fire resistance of rectangular steel columns filled with fibre-reinforced concrete, Canadian J. of Civil Engg., 24(3).
19.    Majumdar, P. and Marchertas, A. 1997. Heat moisture transport and induced stresses in porous materials under rapid heating, Numeric heat transfer A, 32:111-130.
20.    Malhotra, H.L. 1956. Effect of temperature on compressive strength of concrete,  Mag. of concrete research, 8:85-94.
21.    Malhotra, H.L. 1982. Design of fire-resistant structures, Surrey University Press, Glasgow
22.    Malhotra, H.L. 1987. Fire safety in buildings, Garston23.    Melinek, S.J. 1989. Prediction of fire resistance of insulated steel, Fire safety journal, 14:127-134
24.    Nagavinothini.R and Srinivasan Chandrasekaran. 2019. Dynamic analyses of offshore triceratops in ultra-deep waters under wind, wave and current, Structures, 20:279-289, https://doi.org/10.1016/j.istruc.2019.04.009.
25.    Srinivasan Chandrasekaran & Nagavinothini R 2019. Offshore triceratops under impact forces in ultra-deep arctic waters, International J. of Steel structures, DOI: 10.1007/s13296-019-00297-1
26.    Srinivasan Chandrasekaran & Nagavinothini R 2019: Parametric studies on the impact response of offshore triceratops in ultra-deep waters, Structure and Infrastructure Engineering, DOI: 10.1080/15732479.2019.1680707
27.    Srinivasan Chandrasekaran and R. Nagavinothini. 2019. Ice-induced response of offshore triceratops, Ocean Engineering., 180:71-96, DOI: 10.1016/j.oceaneng.2019.03.063
28.    Srinivasan Chandrasekaran and R. Nagavinothini. 2019. Tether analyses of offshore triceratops under ice loads due to continuous crushing, Intl. J. of Innovative Infrastructure Solutions, 20:279-289. https://doi.org/10.1016/j.istruc.2019.04.009.
29.    Wickstorm, U. 1986. Temperature analysis of heavy-insulated steel, Fire safety Journal, Vol. 9.

Additional video courses
1.      Chandrasekaran, S. 2013a. Advanced Marine Structures, Video Course on National Program on Technology Enhanced Learning (NPTEL) portal, Min. Human Resource Dev., Govt. of India. Available at:http://nptel.ac.in/courses/114106037/
2.      Chandrasekaran, S. 2013b. Dynamics of Ocean Structures, Video Course on National Program on Technology Enhanced Learning (NPTEL) portal, Min. Human Resource Dev., Govt. of India. Available at http://nptel.ac.in/courses/114106036/
3.      Chandrasekaran, S. 2013c. Ocean structures and materials, Video course on National Program on Technology Enhanced Learning (NPTEL) portal, Min. Human Resource Dev., Govt. of India.  Available at http://nptel.ac.in/courses/114106035/
4.      Chandrasekaran, S. 2015. Dynamic analysis of offshore structures, Video course on Massive Open Online Course (MOOC), National Program on Technology Enhanced Learning (NPTEL) portal, Min. Human Resource Dev., Govt. of India. Available at https://onlinecourses.nptel.ac.in/noc15_oe01/preview
5.      Chandrasekaran, S. 2016. Risk and Reliability of offshore structures, Video course on Massive Open Online Course (MOOC), National Program on Technology Enhanced Learning (NPTEL) portal, Min. Human Resource Dev., Govt. of India. Available at https://onlinecourses.nptel.ac.in/noc16_oe01
6.      Chandrasekaran, S. 2017. Offshore structures under special loads including fire resistance, Video course on Massive Open Online Course (MOOC), National Program on Technology Enhanced Learning (NPTEL) portal, Min. Human Resource Dev., Govt. of India. Available at https://onlinecourses.nptel.ac.in/noc17_oe01/preview

Instructor bio

Prof. Srinivasan Chandrasekaran

IIT Madras
Srinivasan Chandarsekaran is currently a Professor in the Dept. of Ocean Engineering, Indian Institute of Technology Madras, India. He has teaching, research and industrial experience of about 23 years during which he has supervised many sponsored research projects and offshore consultancy assignments both in India and abroad. His active areas of research include dynamic analysis and design of offshore platforms, Development of geometric forms of complaint offshore structures for ultra-deep water oil exploration and production, sub-sea engineering, Rehabilitation and retrofitting of offshore platforms, structural health monitoring of ocean structures, seismic analysis and design of structures and risk analyses and reliability studies of offshore and petroleum engineering plants. He has been also a visiting fellow under the invitation of Ministry of Italian University Research to University of Naples Federico II, Italy for a period of two years during which he conducted research on advanced nonlinear modelling and analysis of structures under different environmental loads with experimental verifications. He has about 110 research publications in International journals and refereed conferences organized by professional societies around the world. Four text books authored by him are quite popular amongst graduate students of civil and ocean engineering and recommended as reference material for class room studies and research as well. He also delivered four web-based courses namely: i) Dynamic analysis of ocean structures; ii) Ocean structures and materials; iii) Advanced marine structures; and iv) Health, safety and Management in offshore and petroleum engineering. He is a member of many National and International professional bodies and delivered many invited lectures and key note address in the international conferences, workshops and seminars in India and abroad.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 23 April 2022 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.


Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Madras .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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