A Study on Dynamic Behavior of Natural Draft Cooling Tower Considering the Effect of Soil-Structure Interaction

• Autorzy: Chitrahalli Lingaraju Mahesh Kumar , Kotagi Girisha Shwetha , Bhaktanakatte Channabasappa Shanthappa , Karigowda Manjunatha

Identyfikatory

DOI

10.2478/ceer-2021-0047

• Języki publikacji: EN

Abstrakty

EN

In this present era, the technology in advanced construction has developed to a very large extent. Some parts of the constructions are still in the improving stage which includes cooling tower construction. Hyperbolic cooling towers are large, thin shell reinforced concrete structures which contribute to power generation efficiency, reliability, and to environmental protection. Cooling towers use evaporation of water to eject heat from processes such as cooling the circulating water used in oil refineries and in power plants. Nowadays in many thermal power plants, we can see the cooling tower. So, preserving this industrial structure is an effort to save the cooling tower from dangerous earthquakes. The present-day cooling towers are exceptional structures in view of their sheer size and complexities. Present paper deals with the study of dynamic response that is modal analysis, seismic analysis of the two different cooling towers varying the H/t ratio and thicknesses with fixity at the base boundary condition, and the soil is modelled as raft for the effect of soil-structure interaction using the direct approach. In this paper, hyperbolic cooling towers are modelled using ANSYS software, which is a finite element software. Results show that the soil-structure interaction effect significantly modifies the earthquake behavior of hyperbolic cooling towers.

Słowa kluczowe

EN

hyperbolic cooling tower; Richter scale; dynamic response; natural frequency; maximum principal stress; soil-structure interaction

PL

wieża chłodnicza; skala Richtera; badania dynamiczne; naprężenie główne; struktura gruntu

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: Civil and Environmental Engineering Reports
• Rocznik: 2021
• Tom: Vol. 31, no. 4
• Strony: 17--32
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Chitrahalli Lingaraju Mahesh Kumar

• Department of Civil Engineering, VTU-RRC, Belagavi, Karnataka, India

autor

Kotagi Girisha Shwetha

• Department of Civil Engineering, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, Karnataka, India

autor

Bhaktanakatte Channabasappa Shanthappa

• SJM Institute of Technology, Chitradurga, Karnataka, India

autor

Karigowda Manjunatha

• UBDT College of Engineering, Davangere, Karnataka, India

Bibliografia

• 1. Asuman Isil, C 2021. Investigation of behavior of cooling tower structure under external loads. Cumhuriyet Science Journal, 42, 465-475.
• 2. Saikat Chowdhury, Baibaswata Das, Abhishek Hazra 2020. Behavioural Study of R/C Natural Draught Cooling Tower under Gravity Load using Different Support Orientations. International Journal of Engineering and Advanced Technology (IJEAT) 10, 188-193.
• 3. Yang, TY and Rakesh Kapania, K 1984. Finite element random response analysis of cooling tower. Journal of Engineering Mechanics 10, 589-609.
• 4. Mahesh Kumar, CL, Shanthappa, BC, Manjunatha, K 2021. A Study on Dynamic Response of Hyperbolic Cooling Tower for Fixed Base Condition. In: T.G. Sitharam, Raghuveer Rao Pallepati, Sreevalsa Kolathayar(Eds.) Seismic Design and Performance. Lecture Notes in Civil Engineering 120. Springer, Singapore, 269-275.
• 5. Prabhakar, N 1990 Structural design aspects of hyperbolic cooling towers. Technical Session IV, National Seminar on Cooling towers. Chennai, 9, 65-72.
• 6. Ali Naghshineh, Erfan Alavi, Mohammad Reza, Rezaee 2012. Seismic Behavior of column-supported and Innovative Fixed-base Cooling Towers with Ring Beam. In: Proceedings of the 15th World Conference on Earthquake Engineering, NITK Surathkal.
• 7. Dieter Busch, Reinhard Harte, Wilfried, B, Kratzig and Ulrich Montag. 2002. New natural draft cooling tower of 200 m of height. Engineering Structures. 24, 1509-1521.
• 8. Chiranjit Mishra, Ranjith, A , Sanjith, J and Kiran, BM 2015. Wind Induced Interference Effects on Natural Draught Cooling Tower. International Journal of Progresses in Civil Engineering (IJPCE) 2, 6-12.
• 9. Tejas, G, Gaikwad, Gore, NG, Sayagavi, Kiran Madhavi, VG, Sandeep 2014. Effect of Wind Loading on Natural Draught Cooling Tower. IJEAT 4, 34-39.
• 10. Murali, G, Vivek Vardhan, CM, Prasanth Kumar Reddy, BV 2012. Response of Cooling Towers to Wind Loads. ARPN Journal of Engineering and Applied Sciences 7, 114-120.
• 11. Augusti, G, Borri, C and Zahlten, W 1991. Nonlinear Dynamic Analysis of Cooling Towers under Stochastic Wind Loading. In: Nonlinear Stochastic Mechanics, IUTAM Symposium, Turin, 25-34.
• 12. Li, Long-yuan and Loo, Wen-da 1989. Nonlinear Buckling Analysis of Hyperbolic Cooling Tower Shell With Ring-Stiffeners. Applied Mathematics and Mechanics 10, 113-118.
• 13. Mohan Babu, T, Khasim, Khan, Nema, MK and Raghavan, N 2004. A comparative study of wind dynamic effects on NDCTs as per various international standards. In: Proceedings of the Fifth International Symposium on Natural Draught Cooling Towers. Istanbul, Turkey.
• 14. Poddar, K 2007 National Wind Tunnel Facility at IIT Kanpur Overview. In: Proceedings of the National Conference on Wind Tunnel Testing. IIT Kanpur.
• 15. Shitang, Ke, Wei, Yu, Peng, Zhua,Yaojun, Ge and Xian’an, Hou 2018 Fullscale measurements and damping ratio properties of cooling towers with typical heights and configurations. Thin-Walled Structures 124, 437-448.
• 16. Selvi Rajan, S, Ramesh Babu, G, Arunachalam, S, Nagesh, R. Iyer and Lakshmanan, N 2013. Interference Factors For Natural Draught Cooling Towers Based On Wind Tunnel Experiments In: The Eighth Asia-Pacific Conference on Wind Engineering, Chennai, India, 490-498.
• 17. Mahesh Kumar, CL, Shwetha, KG, Shanthappa, BC and Manjunatha, K 2021 Effect of Buckling Due to Wind Load on Analysis of Natural Draught Cooling Tower. In: Nandagiri L., Narasimhan M.C., Marathe S., Dinesh S. (eds) Sustainability Trends and Challenges in Civil Engineering. Lecture Notes in Civil Engineering 162, Springer, Singapore, 1077-1093.
• 18. IS 1893 (Part 1) – 2016, Criteria for Earthquake Resistant Design of Structures, Bureau of Indian Standards, New Delhi.
• 19. Yang, TY and Rakesh, KK 1983. Shell Elements for Cooling Tower Analysis. J. Eng. Mech. 109, 1270-1289.
• 20. IS:11504-1985, Criteria for Structural Design of Reinforced Concrete Natural Draught Cooling Towers, Bureau of Indian Standards, New Delhi, 1985.