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Title: Design of the precast, post-tensioned concrete shielding structure for the TFTR neutral beam test cell

Abstract

At the TFTR facility, the Neutral Beam Test Cell is a room separated from the TFTR Cell by a 4-foot-thick concrete wall and devoted to testing the neutral beam injector. The function of the shielding structure is to protect personnel from radiation casued by pulsing the injector. The distance from the TFTR device to the injector is large enough to permit use of magnetic materials in the shielding structure, and the neutron flux levels are small enough so that ordinary concrete of moderate thickness may be employed. Radiation considerations are not discussed in this paper, which is devoted to a description of the structural design of the shield.

Authors:
;
Publication Date:
Research Org.:
Princeton Univ, NJ, USA
OSTI Identifier:
6361506
Report Number(s):
CONF-811040-
Journal ID: CODEN: PSERD; TRN: 83-008061
Resource Type:
Conference
Resource Relation:
Journal Name: Proc. Symp. Eng. Probl. Fusion Res.; (United States); Conference: 9. symposium on engineering problems of fusion research, Chicago, IL, USA, 26 Oct 1981
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; NEUTRAL BEAM SOURCES; TEST FACILITIES; SHIELDING; TFTR REACTORS; DESIGN; NEUTRAL ATOM BEAM INJECTION; BEAM INJECTION; THERMONUCLEAR REACTORS; TOKAMAK TYPE REACTORS; 700205* - Fusion Power Plant Technology- Fuel, Heating, & Injection Systems

Citation Formats

Kaminsky, E.L., and Nilsson, E.T. Design of the precast, post-tensioned concrete shielding structure for the TFTR neutral beam test cell. United States: N. p., 1981. Web.
Kaminsky, E.L., & Nilsson, E.T. Design of the precast, post-tensioned concrete shielding structure for the TFTR neutral beam test cell. United States.
Kaminsky, E.L., and Nilsson, E.T. 1981. "Design of the precast, post-tensioned concrete shielding structure for the TFTR neutral beam test cell". United States. doi:.
@article{osti_6361506,
title = {Design of the precast, post-tensioned concrete shielding structure for the TFTR neutral beam test cell},
author = {Kaminsky, E.L. and Nilsson, E.T.},
abstractNote = {At the TFTR facility, the Neutral Beam Test Cell is a room separated from the TFTR Cell by a 4-foot-thick concrete wall and devoted to testing the neutral beam injector. The function of the shielding structure is to protect personnel from radiation casued by pulsing the injector. The distance from the TFTR device to the injector is large enough to permit use of magnetic materials in the shielding structure, and the neutron flux levels are small enough so that ordinary concrete of moderate thickness may be employed. Radiation considerations are not discussed in this paper, which is devoted to a description of the structural design of the shield.},
doi = {},
journal = {Proc. Symp. Eng. Probl. Fusion Res.; (United States)},
number = ,
volume = ,
place = {United States},
year = 1981,
month = 1
}

Conference:
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  • A nonlinear finite element model of a nuclear power plant containment building was developed to determine its ultimate pressure capability under quasistatic and impulsive dynamic loads. The ADINA finite element computer code was used to develop the model because of its capability to handle concrete cracking and crushing. Results indicate that, even though excessive concrete cracking occurs, failure is ultimately caused by rupture of post-tensioning tendons.
  • This paper presents a three dimensional nonlinear structural analysis of a post-tensioned reinforced concrete nuclear reactor containment building. The objective of the analysis was to develop and demonstrate modeling techniques appropriate for determining the global ultimate internal pressure capacity of this type of containment. The structural model developed for the ADINA computer code employed nonlinear material models with truss, shell and three dimensional continuum elements to represent the major structural members (tendons, rebars, ties, concrete and liner). In addition a special uniaxial elastic plastic shell material model was developed to facilitate representation of the dome tendon lacing pattern. Effective usemore » of symmetry permitted all three dimensional effects to be represented in a 30/sup 0/ (0.52 rad) segment of the structure. The analysis suggested that gross failure of the structure at a quasistatic internal pressure of 99 psi (0.68 MPa) may have been precipitated by the nonaxisymmetric three dimensional nature of the stress field in the concrete near the tendon anchorages.« less
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