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The tank's geometric properties affect the sloshing wave height and the resulting forces on the roof. | ||
| Civil Engineering and Applied Solutions | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 31 اردیبهشت 1404 | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22080/ceas.2025.28937.1000 | ||
| نویسندگان | ||
| Ali E.Hariri* ؛ Yaghoub Mohammadi | ||
| Civil Engineering Department, Engineering Faculty, Mohaghegh Ardabili University, Ardabil, Iran | ||
| تاریخ دریافت: 17 فروردین 1404، تاریخ بازنگری: 21 اردیبهشت 1404، تاریخ پذیرش: 23 اردیبهشت 1404 | ||
| چکیده | ||
| This paper outlines the effects of the freeboard height sufficiency on the sloshing wave characteristics, considering the rectangular tank geometric properties. Recorded ground accelerations of the 1999 Kocaeli and 1994 Northridge earthquakes are applied to the finite element model with different geometric assumptions. Both the frequency content of recorded ground motions and their PGA influences the sloshing wave responses. The geometric properties include the ratio of contained liquid height to the tank length, the wall elasticity, the wall thickness, and the freeboard height considering tanks with and without the roof. The choice of roofed or roofless tanks significantly affects the sloshing properties because of non-zero insufficient freeboard influences. Sloshing height is studied for the roofless tanks assuming sufficient freeboards. The upward force arising from inadequate freeboard shows the roofed tanks' sloshing wave characteristics, including various insufficient freeboards. For the roofless tanks, rigidity assumption and thickness reduction of elastic tanks reduce the sloshing height. The maximum sloshing height also decreases by decreasing the ratio of the contained liquid height to the tank length. So, the roofless tanks exhibit a clear trend for the tank geometric variations. The roofed tanks with zero insufficient freeboards also show a regular trend; however, the sloshing forces increase by decreasing the H to L ratio. But, tanks with insufficient non-zero freeboards does not indicate any steady trend for the geometric variation because of non-zero insufficient freeboard effects. A comparison of upward forces applied to the tanks' roof with their corresponding sloshing height time history shows the importance of zero or non-zero assumption for the freeboard height to control the sloshing characteristics. So, the sloshing wave responses are significantly dependent on the insufficient freeboard height assumption, although their responses depend on the tanks' various geometric properties | ||
| کلیدواژه‌ها | ||
| Geometric properties of a rectangular tank؛ Sloshing height؛ Upward force؛ sufficient non-zero freeboard؛ insufficient non-zero freeboard | ||
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آمار تعداد مشاهده مقاله: 16 |
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