SHAKING TABLE STUDY ON THE EFFECT OF BAFFLE IN SLOSHING REDUCTION IN ABOVEGROUND STEEL STORAGE TANKS
Oil storage tanks are used extensively in different national industries such as refineries, power plants and fuel storage facilities. Therefore, the seismic safety and stabilit...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Sharif University of Technology
2017-02-01
|
| Series: | مهندسی عمران شریف |
| Subjects: | |
| Online Access: | https://sjce.journals.sharif.edu/article_1065_53fff896bbe43cfb066ddf0ec6eeaaf0.pdf |
| _version_ | 1827856991997919232 |
|---|---|
| author | M. K. Sangsari N. Hosseinzadeh H. T. Ferdosiyeh |
| author_facet | M. K. Sangsari N. Hosseinzadeh H. T. Ferdosiyeh |
| author_sort | M. K. Sangsari |
| collection | DOAJ |
| description | Oil storage tanks are used extensively in different national industries such as refineries, power plants and fuel storage facilities. Therefore, the seismic safety and stability of this kind of tank during strong earthquakes are very important. Many existing tanks are designed, constructed and operated based on outdated versions of standards and code requirements. Therefore, investigation into existing tanks using the latest versions of international standards and their retrofitting is necessary.In this study, reducing fluid wave sloshing height in steel storage tanks using an annular baffle as a damping device installed on the tank shell is investigated. Based on the widespread use of baffles in moving liquid containers, especially in space vehicles, the ability of baffles to reduce sloshing effects in storage tanks that are especially broader than fuel containers is under question.The primary objective of the shake table study made in this research is to provide test data for verification of numerical models and to recommend a
practical baffle arrangement that would be effective over a range of frequencies. For this purpose, a typical tank model with a geometrical scaling of 1/16 is considered in this research as representative of anchored tanks with different height to diameter ratios. At the Laboratory of the International Institute of Earthquake Engineering and Seismology (IIEES) in Tehran, a shaking table test was undertaken to evaluate sloshing wave amplitudes in scaled model steel storage tanks in cases of with and without annular baffles. Three earthquake ground motion records are used as input base motions to the studied tank model generated by the shaking table. Four different liquid filling levels and 3 types of baffle arrangement are used to investigate the effect of the number and location of baffles on sloshing amplitude reduction during the earthquake in the studied tank model. The results of studied models indicate that the annular baffles have significant effects in reducing sloshing wave height as sloshing dependent dampers, and can be used in oil storage tanks. |
| first_indexed | 2024-03-12T12:35:25Z |
| format | Article |
| id | doaj.art-8ee07d7eb8464fc28cc9b34e0b269319 |
| institution | Directory Open Access Journal |
| issn | 2676-4768 2676-4776 |
| language | fas |
| last_indexed | 2024-03-12T12:35:25Z |
| publishDate | 2017-02-01 |
| publisher | Sharif University of Technology |
| record_format | Article |
| series | مهندسی عمران شریف |
| spelling | doaj.art-8ee07d7eb8464fc28cc9b34e0b2693192023-08-29T04:27:44ZfasSharif University of Technologyمهندسی عمران شریف2676-47682676-47762017-02-0132.24.193991065SHAKING TABLE STUDY ON THE EFFECT OF BAFFLE IN SLOSHING REDUCTION IN ABOVEGROUND STEEL STORAGE TANKSM. K. Sangsari0N. Hosseinzadeh1H. T. Ferdosiyeh2Faculty of Engineering Islamic Azad University Science and Research BranchInternational Institute of Earthquake Engineering and Seismology (IIEES)International Institute of Earthquake Engineering and Seismology (IIEES)Oil storage tanks are used extensively in different national industries such as refineries, power plants and fuel storage facilities. Therefore, the seismic safety and stability of this kind of tank during strong earthquakes are very important. Many existing tanks are designed, constructed and operated based on outdated versions of standards and code requirements. Therefore, investigation into existing tanks using the latest versions of international standards and their retrofitting is necessary.In this study, reducing fluid wave sloshing height in steel storage tanks using an annular baffle as a damping device installed on the tank shell is investigated. Based on the widespread use of baffles in moving liquid containers, especially in space vehicles, the ability of baffles to reduce sloshing effects in storage tanks that are especially broader than fuel containers is under question.The primary objective of the shake table study made in this research is to provide test data for verification of numerical models and to recommend a practical baffle arrangement that would be effective over a range of frequencies. For this purpose, a typical tank model with a geometrical scaling of 1/16 is considered in this research as representative of anchored tanks with different height to diameter ratios. At the Laboratory of the International Institute of Earthquake Engineering and Seismology (IIEES) in Tehran, a shaking table test was undertaken to evaluate sloshing wave amplitudes in scaled model steel storage tanks in cases of with and without annular baffles. Three earthquake ground motion records are used as input base motions to the studied tank model generated by the shaking table. Four different liquid filling levels and 3 types of baffle arrangement are used to investigate the effect of the number and location of baffles on sloshing amplitude reduction during the earthquake in the studied tank model. The results of studied models indicate that the annular baffles have significant effects in reducing sloshing wave height as sloshing dependent dampers, and can be used in oil storage tanks.https://sjce.journals.sharif.edu/article_1065_53fff896bbe43cfb066ddf0ec6eeaaf0.pdfaboveground steel storage tanksbafflessloshing dependent dampersshaking table |
| spellingShingle | M. K. Sangsari N. Hosseinzadeh H. T. Ferdosiyeh SHAKING TABLE STUDY ON THE EFFECT OF BAFFLE IN SLOSHING REDUCTION IN ABOVEGROUND STEEL STORAGE TANKS مهندسی عمران شریف aboveground steel storage tanks baffles sloshing dependent dampers shaking table |
| title | SHAKING TABLE STUDY ON THE EFFECT OF BAFFLE IN SLOSHING REDUCTION IN ABOVEGROUND STEEL STORAGE TANKS |
| title_full | SHAKING TABLE STUDY ON THE EFFECT OF BAFFLE IN SLOSHING REDUCTION IN ABOVEGROUND STEEL STORAGE TANKS |
| title_fullStr | SHAKING TABLE STUDY ON THE EFFECT OF BAFFLE IN SLOSHING REDUCTION IN ABOVEGROUND STEEL STORAGE TANKS |
| title_full_unstemmed | SHAKING TABLE STUDY ON THE EFFECT OF BAFFLE IN SLOSHING REDUCTION IN ABOVEGROUND STEEL STORAGE TANKS |
| title_short | SHAKING TABLE STUDY ON THE EFFECT OF BAFFLE IN SLOSHING REDUCTION IN ABOVEGROUND STEEL STORAGE TANKS |
| title_sort | shaking table study on the effect of baffle in sloshing reduction in aboveground steel storage tanks |
| topic | aboveground steel storage tanks baffles sloshing dependent dampers shaking table |
| url | https://sjce.journals.sharif.edu/article_1065_53fff896bbe43cfb066ddf0ec6eeaaf0.pdf |
| work_keys_str_mv | AT mksangsari shakingtablestudyontheeffectofbaffleinsloshingreductioninabovegroundsteelstoragetanks AT nhosseinzadeh shakingtablestudyontheeffectofbaffleinsloshingreductioninabovegroundsteelstoragetanks AT htferdosiyeh shakingtablestudyontheeffectofbaffleinsloshingreductioninabovegroundsteelstoragetanks |