Abstract
Due to the thin-walled wind-sensitive structures of large crude oil storage tanks, it is necessary to consider the wind load failure of oil storage tanks in coastal areas under strong wind conditions during the design process. Based on the finite element analysis software ANSYS\Workbench, the static structure analysis and buckling analysis of the 100, 000 cubic crude oil storage tanks are carried out. In order to solve the buckling failure phenomenon, a wind-resistant ring structure was optimal designed for the crude oil storage tank according to standards, so that the storage tank can withstand hurricanes and typhoons above level 12 with a wind speed of 137 km/h.
Highlights
Taking a 100,000 cubic meter crude oil storage tank as the analysis object, the 3D grid of crude oil storage tank model is shown in Figure 1 below
The wind load distribution law of 100,000 cubic large storage tank is studied through numerical simulation, and the wind stability bearing capacity of the storage tank structure is analysed for optimal design of the wind resistance circle
The relationship between the wind load on the outer wall of the crude oil storage tank and the circumferential angle [6] is shown in Figure 2, which is loaded into the 3D model, as shown in Figures 3 and 4
Summary
China's oil consumption ranks second in the world [1], and the four main oil reserve bases are currently being built in the coastal area relying on ports [2]. These bases use 100,000 cubic meters of oil storage tanks with thinwalled shell structures, whose diameter/thickness ratio is usually greater than 1,000, and can even reach 2500 or more [3]. The large diameter-thickness ratio causes large crude oil storage tanks to be unstable and damaged under strong wind loads. The wind load distribution law of 100,000 cubic large storage tank is studied through numerical simulation, and the wind stability bearing capacity of the storage tank structure is analysed for optimal design of the wind resistance circle
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