Experimental and Numerical Investigation for Seismic Performance of a Large-Scale LNG Storage Tank Structure Model
As special equipment for storing energy, the safety performance of liquified natural gas (LNG) storage tanks under earthquake action is extremely important. To study the dynamic characteristics of the large-scale LNG storage tank structure and the dynamic response under earthquake action, the shakin...
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| Format: | Article |
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MDPI AG
2022-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/17/8390 |
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| author | Zengshun Chen Zhengang Xu Lingxiao Teng Jun Fu Tao Xu Zhihang Zhao |
| author_facet | Zengshun Chen Zhengang Xu Lingxiao Teng Jun Fu Tao Xu Zhihang Zhao |
| author_sort | Zengshun Chen |
| collection | DOAJ |
| description | As special equipment for storing energy, the safety performance of liquified natural gas (LNG) storage tanks under earthquake action is extremely important. To study the dynamic characteristics of the large-scale LNG storage tank structure and the dynamic response under earthquake action, the shaking table test and numerical simulation analysis of the LNG storage tank structure model are carried out. The results of the shaking table test demonstrate that the natural vibration frequency of the tank model is significantly reduced after the isolation measures are taken. The acceleration response of the seismic storage tank increases approximately linearly along the direction of height, and the seismic isolation bearing has a significant seismic isolation effect on the acceleration of the storage tank. The numerical simulation results show that the seismic responses and their spectral characteristic curves of the numerical model and the shaking table test are the same, which verifies the feasibility and rationality of the numerical model. After seismic isolation measures are taken, the seismic responses of large-scale LNG storage tanks, such as base shear force, overturning bending moment and acceleration, are reduced to varying degrees, but the displacement of the storage tank increases to some extent. When carrying out the seismic isolation design of LNG storage tanks, it is necessary to focus on the displacement of the storage tank to prevent damage of the auxiliary pipeline led by excessive displacement. |
| first_indexed | 2024-03-10T03:06:48Z |
| format | Article |
| id | doaj.art-9e6cc0f5a5c3488e838a3ed6fe1d5169 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T03:06:48Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-9e6cc0f5a5c3488e838a3ed6fe1d51692023-11-23T12:38:45ZengMDPI AGApplied Sciences2076-34172022-08-011217839010.3390/app12178390Experimental and Numerical Investigation for Seismic Performance of a Large-Scale LNG Storage Tank Structure ModelZengshun Chen0Zhengang Xu1Lingxiao Teng2Jun Fu3Tao Xu4Zhihang Zhao5School of Civil Engineering, Chongqing University, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaScience and Technology Quality Department, Chongqing Design Institute Co., Ltd., Chongqing 400015, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaAs special equipment for storing energy, the safety performance of liquified natural gas (LNG) storage tanks under earthquake action is extremely important. To study the dynamic characteristics of the large-scale LNG storage tank structure and the dynamic response under earthquake action, the shaking table test and numerical simulation analysis of the LNG storage tank structure model are carried out. The results of the shaking table test demonstrate that the natural vibration frequency of the tank model is significantly reduced after the isolation measures are taken. The acceleration response of the seismic storage tank increases approximately linearly along the direction of height, and the seismic isolation bearing has a significant seismic isolation effect on the acceleration of the storage tank. The numerical simulation results show that the seismic responses and their spectral characteristic curves of the numerical model and the shaking table test are the same, which verifies the feasibility and rationality of the numerical model. After seismic isolation measures are taken, the seismic responses of large-scale LNG storage tanks, such as base shear force, overturning bending moment and acceleration, are reduced to varying degrees, but the displacement of the storage tank increases to some extent. When carrying out the seismic isolation design of LNG storage tanks, it is necessary to focus on the displacement of the storage tank to prevent damage of the auxiliary pipeline led by excessive displacement.https://www.mdpi.com/2076-3417/12/17/8390LNG storage tankshaking table testdynamic characteristicsdynamic responseseismic performance |
| spellingShingle | Zengshun Chen Zhengang Xu Lingxiao Teng Jun Fu Tao Xu Zhihang Zhao Experimental and Numerical Investigation for Seismic Performance of a Large-Scale LNG Storage Tank Structure Model Applied Sciences LNG storage tank shaking table test dynamic characteristics dynamic response seismic performance |
| title | Experimental and Numerical Investigation for Seismic Performance of a Large-Scale LNG Storage Tank Structure Model |
| title_full | Experimental and Numerical Investigation for Seismic Performance of a Large-Scale LNG Storage Tank Structure Model |
| title_fullStr | Experimental and Numerical Investigation for Seismic Performance of a Large-Scale LNG Storage Tank Structure Model |
| title_full_unstemmed | Experimental and Numerical Investigation for Seismic Performance of a Large-Scale LNG Storage Tank Structure Model |
| title_short | Experimental and Numerical Investigation for Seismic Performance of a Large-Scale LNG Storage Tank Structure Model |
| title_sort | experimental and numerical investigation for seismic performance of a large scale lng storage tank structure model |
| topic | LNG storage tank shaking table test dynamic characteristics dynamic response seismic performance |
| url | https://www.mdpi.com/2076-3417/12/17/8390 |
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