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Shaking Table Testing of a Scaled Nuclear Power Plant Structure with Base Isolation
- Source :
- Science and Technology of Nuclear Installations, Vol 2023 (2023)
- Publication Year :
- 2023
- Publisher :
- Hindawi Limited, 2023.
-
Abstract
- To investigate the seismic performance and isolation effect of a high-temperature gas-cooled reactor, a 1/20 scale model including a reactor, a spent-fuel plant, and a nuclear auxiliary plant was fabricated. In addition, 220 mm lead-rubber bearings were designed and produced for use in the shaking table test, which included both isolated and nonisolated conditions. Two historical earthquake records and three artificial earthquake motions were used to input the ground motion in the tests. The results demonstrated that the seismic performance of the plant was better and that the structure was in an elastic state, under a safe shutdown earthquake event. Isolation bearings were found to effectively reduce the dominate frequency of the structure. The acceleration amplification factor of the superstructure was found to be less than 1. The isolation test results showed that the peak of the floor response spectrum at the pressure vessel support was less than 0.1 g. In the nonisolation test, the peak of the floor response spectrum was greater than 1 g. In the isolation test, the relative displacement of the structure was less than 1.1 mm, which was relatively small. The structure maintained a good isolation performance and exhibited improved safety under extreme ground motion.
- Subjects :
- Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Subjects
Details
- Language :
- English
- ISSN :
- 16876083
- Volume :
- 2023
- Database :
- Directory of Open Access Journals
- Journal :
- Science and Technology of Nuclear Installations
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.fc6f9ccdbca48e3b2ca38d8e1ef5d64
- Document Type :
- article
- Full Text :
- https://doi.org/10.1155/2023/2536474