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http://dx.doi.org/10.5762/KAIS.2019.20.8.362

Analysis of Internal Pressure Capacity of Modular Containment Structure for Small Modular Reactor  

Park, Woo-Ryong (Department of Civil Engineering, University of Seoul)
Yhim, Sung-Soon (Department of Civil Engineering, University of Seoul)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.8, 2019 , pp. 362-370 More about this Journal
Abstract
The internal pressure capacity of a modular containment structure requires analysis to prevent the release of radioactive material in the case of an accident. To analyze the capacity, FEM models were prepared while considering the tendon arrangements and the contact surfaces between precast concrete modules, and then static analyses were carried out. The changing characteristics in the displacement and stress under step-wise loading were analyzed, along with the effects of selected parameters. For comparison, the capacity of a monolithic containment structure was also analyzed. Parametric analyses were done to suggest ranges of parameters such as the tendon force, tendon spacing, tendon location in concrete thickness direction, friction coefficient, and concrete thickness. The tendon force and frictional force provide a combined effect between contact surfaces of modules. The same level of internal pressure capacity can be secured even in the modular containment structure as in the monolithic containment structure by increasing the tendon force with additional tendons.
Keywords
Internal Pressure Capacity; Modular Containment Structure; Small Modular Reactor; Tendon Force; Frictional Force;
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Times Cited By KSCI : 2  (Citation Analysis)
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