000019000 001__ 19000
000019000 005__ 20170118182254.0
000019000 04107 $$aeng
000019000 046__ $$k2017-01-09
000019000 100__ $$aHirotani, Kiyoshi
000019000 24500 $$aResponse Characteristics of Operating Floor of Reactor Building in Onagawa Nuclear Power Plant Unit2 During Tohoku Earthquake 2011

000019000 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019000 260__ $$b
000019000 506__ $$arestricted
000019000 520__ $$2eng$$aThe accelerometers recorded a maximum of 607 Gal and 1755 Gal on the basemat slab and roof slabs of the reactor building of Unit 2 of the Onagawa Nuclear Power Plant during the 2011 Tohoku Earthquake. In our previous paper [1], we confirmed the stiffness of the upper part of the operating floor was evidently degraded even though the reactor building maintained its structural integrity during the earthquake based on simulation analysis using lumped mass models. In this paper, we perform additional simulation analysis by 3D-FEM in order to understand the behavior of the reactor building focusing on the material nonlinearity of the upper part of the shear walls during the earthquake. The initial stiffness of walls before the earthquake and the nonlinear material properties of concrete are calibrated with the seismic records and the simulation model. The characteristics of the actual response of the operating floor were fully captured by the FEM model and as a result of the simulation the model numerically confirmed that the maximum strain values of the reinforcing bars were much smaller than the seismic capacity of shear walls during the earthquake.

000019000 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019000 653__ $$a3D-FEM; 2011 Tohoku Earthquake; Reinforced Concrete; Nuclear Power Plant

000019000 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019000 720__ $$aHirotani, Kiyoshi$$iBaba, Yuka$$iOhashi, Yasuhiro$$iOgata, Yoshihiro$$iSugawara, Osamu
000019000 8560_ $$ffischerc@itam.cas.cz
000019000 8564_ $$s744990$$uhttps://invenio.itam.cas.cz/record/19000/files/2668.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2668.
000019000 962__ $$r16048
000019000 980__ $$aPAPER