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ISSN 2063-5346
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ANALYSIS AND DESIGN OF CYCLONE SHELTER ALONG EAST COAST OF TAMIL NADU, SOUTH INDIA

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Anburaja Durai , Nagalakshmi Radhakrishnan
» doi: 10.31838/ecb/2023.12.6.57

Abstract

India has a coastline around 7500 km long, surrounded by the Bay of Bengal on the Eastern side and the Arabian Sea on the western side. Coastal hazards caused by human activities and natural calamities like storm surges, coastal flooding, sea level rise and cyclones are frequently happening due to climate change. Tropical cyclones are very common and expose vulnerability cause severe damages to the coastal community such as property loss and live to lose. To reduce these impacts by disaster management activities. Cyclone shelters are one of the engineering constructions for management plan along the suitable locations to protect the people, prevent property loss and are a typical phenomenon that involves social, psychological, economic, environmental, geological, political, global issues of concern. Various cyclone structural models were adopted in Indian states like Andhra Pradesh, Odisha, West Bengal and Tamil Nadu. They could not withstand long duration due to structural design and it needs a better solution with a scientific and technological based approach. This study focusses the structural design for cyclone shelter as the designed circular shape with lateral stiffness is provided by Shear wall to the structure and its behaviour is very different from the normal frame structure and analysis carried for the performance of comparison of cyclone pressure wind load of buildings between with & without a shear wall. This analysis is done by using STAAD-Pro. The dead load, live loads, wind loads (during cyclone) are to be applied for beams, columns and slabs; wind load calculations were done as per IS 875 Part-3. Indian Meteorological Department (IMD), Chennai has categorized for the high wind speed of Super cyclone is 220 Km/hr and applied the same wind speed to the Circular cyclone shelter and the shelter was withstood for high intensity of cyclone impact. Planning of the Circular Cyclone Shelter from the old needs proper an analysis and design of structural members to resist during super cyclones and storm surges. Existing rectangular cyclone shelters are not safe for high intensity Cyclones in Odisha, West Bengal and Myanmar. This study suggests the Circular Cyclone Shelters is suitable for any environmental condition compared to other types of existing rectangular cyclone shelters for protection measures. The circular Cyclone shelters will be used as migration centers and livestock storage throughout cyclones and protect against storm surges. Circular Cyclone Shelters will be very useful in remote Coastal Communities.

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