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Birendra Kumar Singh,
Abstract
Buildings near coastal and offshore regions are exposed to extreme wind and seismic forces that
govern structural design. In this study, a simplified assessment of wind and earthquake loads acting
on a multistorey coastal building is presented. A wind velocity of 400 km/hr is considered to represent
severe cyclonic conditions. Using a unit weight of air of 12 N/m3, the cumulative wind thrust acting
over a building height of 40 m and length of 30 m is evaluated. The building consists of four storeys
with a storey height of 10 m and columns of 0.8 m width. While the direct wind thrust on an individual
column is estimated as 24.11 tonnes, the total wind thrust on the building is calculated as 904.32
tonnes. With six columns spaced at 6 m along the building length, the additional load transferred to
each bottom column is approximately 151 tonnes. A seismic event of magnitude 7 on the Richter scale
is also considered, corresponding to a ground acceleration of 0.7 g (6.867 m/s2). The study highlights
that the cumulative wind load governs the design of bottom columns in coastal buildings rather than
local wind effects alone.
Keywords: Coastal buildings, wind thrust, seismic loading, bottom column design, offshore structures.
Birendra Kumar Singh. Design and Performance Considerations for Buildings in Coastal and Offshore Environments. Journal of Offshore Structure and Technology. 2026; 13(01):-.
Birendra Kumar Singh. Design and Performance Considerations for Buildings in Coastal and Offshore Environments. Journal of Offshore Structure and Technology. 2026; 13(01):-. Available from: https://journals.stmjournals.com/joost/article=2026/view=239098
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Journal of Offshore Structure and Technology
| Volume | 13 |
| 01 | |
| Received | 05/02/2026 |
| Accepted | 07/02/2026 |
| Published | 11/02/2026 |
| Publication Time | 6 Days |
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