An estimation method for basemat uplift behavior of nuclear power plant buildings |
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| Authors: | Naohiro Nakamura Susumu Ino Osamu Kurimoto Masayuki Miake |
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| Affiliation: | aResearch & Development Institute, Takenaka Corporation, 1-5-1, Ohtsuka, Inzai city, Chiba pref. 270-1395, Japan;bSpecialized Structure Group, Taisei Corporation, Tokyo, Japan;cTechnical Research Institute, Obayashi Corporation, Tokyo, Japan;dDepartment of Civil Engineering & Architecture, The Kansai Electric Power Co., Inc., Osaka, Japan |
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| Abstract: | It is important to accurately estimate the effects of strong earthquake motions on the basemat uplift behavior and structural responses for the seismic design of nuclear power plant buildings. In this paper, an analysis model which describes the soil part using the 3 dimensional FEM was proposed to be used when the ground contact ratio is low, and the validity of this model was confirmed. Furthermore, investigations using the model were carried out where the attaching force under the basemat was taken into account, in order to more realistically estimate the basemat uplift behavior. The effects in the case of the building being embedded were also investigated. |
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