Papers by Keyword: Nuclear Plant

Abstract: Given the global trend toward the expansion of the use of nuclear power, Koreas nuclear power industry has begun to work actively to make inroads into foreign countries. As formwork accounts for about 25 percent of the entire duration of a construction project, including nuclear power plant construction, and requires considerable efforts, to achieve a reduction in construction duration, it is necessary to reduce the duration of formwork. In this study, an actual site where Alumimum Form (AL-Form) was used as a system form in a nuclear plant construction site was investigated and analyzed. Through the analysis, AL-Form was found to be sufficiently economically feasible to be utilized in nuclear power plant construction. However, there are slight differences between general system form and AL-Form, and to activate the utilization of AL-Form skilled workers should be cultivated for the formwork and specific technologies for the AL-Form work should be additionally studied in the future.

Abstract: As for thin walled cylindrical liquid storage tanks in nuclear power plants, the current elastic design guideline against seismic loading might result in too conservative component design. Therefore, it is thought possible to make the design procedure more reasonable by taking dynamic response reduction into account. Experiments using scaled models as well as numerical analyses were carried out, and seismic behavior of thin walled cylindrical liquid storage tanks was simulated to investigate energy absorption capacity and seismic resistance of those tanks. Based on the test and analysis results, assessment procedure for buckling considering post-buckling behavior has been proposed.