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Nonmagnetic concrete. Guide for the superconductive magnetically levitated train system (Maglev); Hijisei concrete. Chodendo jiki fujoshiki tetsudoyo guide way

Journal Article:

Abstract

Non-magnetization is applied to concrete structures with which magnetic environment is a problem, such as a guideway for superconductive magnetically levitated train system (Maglev) and geomagnetism observation facilities. As an example, this paper introduces the conception and the design methods of guideways for Maglev. If reinforcing bars or tensing materials of common steel are placed close to a vehicle, inductive current is generated in the steel due to moving magnetic field, causing a problem to form part of driving resistance. The inductive current includes loop current and eddy current. The former current may be prevented if the contact resistance in steels with each other is about one ohm or more, but the latter current has no other means but to minimize it as long as the material is electrically conductive. Conceivable measures may include the use as reinforcing bars of non magnetic high Mn-steel with electric specific resistance of 4 to 5 times as large as that for common steel reinforcing bars, and the use of continuous reinforcing fibers such as aramid. The latter material requires strength design especially importantly, but has obtained good result when it was constructed at the experimental linear motor train guideway at Miyazaki, Japan. 5  More>>
Authors:
Tottori, S; Sato, T [1] 
  1. Railway Technical Research Institute, Tokyo (Japan)
Publication Date:
Jul 01, 1994
Product Type:
Journal Article
Reference Number:
SCA: 320202; 360606; 665412; PA: NEDO-94:913630; EDB-95:057146; SN: 95001366453
Resource Relation:
Journal Name: Konkurito Kogaku (Concrete Journal); Journal Volume: 32; Journal Issue: 7; Other Information: PBD: 1 Jul 1994
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 36 MATERIALS SCIENCE; 66 PHYSICS; CONCRETES; MAGNETIC PROPERTIES; LEVITATED TRAINS; LEVITATION; SUPERCONDUCTING MAGNETS; RAILWAYS; MONITORS; GEOMAGNETIC FIELD; MAGNETIC FIELDS; MAGNETIZATION; STEELS; RODS; PRESTRESSED CONCRETE; FARADAY INDUCTION; ELECTRIC CURRENTS; DRAG; EDDY CURRENTS; DIELECTRIC MATERIALS; ELECTRIC CONDUCTIVITY; HIGH ALLOY STEELS; MANGANESE; ARAMIDS; FIBERS; REINFORCED PLASTICS
OSTI ID:
27345
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: KOKODX; ISSN 0387-1061; TRN: 94:913630
Submitting Site:
NEDO
Size:
pp. 139-142
Announcement Date:

Journal Article:

Citation Formats

Tottori, S, and Sato, T. Nonmagnetic concrete. Guide for the superconductive magnetically levitated train system (Maglev); Hijisei concrete. Chodendo jiki fujoshiki tetsudoyo guide way. Japan: N. p., 1994. Web.
Tottori, S, & Sato, T. Nonmagnetic concrete. Guide for the superconductive magnetically levitated train system (Maglev); Hijisei concrete. Chodendo jiki fujoshiki tetsudoyo guide way. Japan.
Tottori, S, and Sato, T. 1994. "Nonmagnetic concrete. Guide for the superconductive magnetically levitated train system (Maglev); Hijisei concrete. Chodendo jiki fujoshiki tetsudoyo guide way." Japan.
@misc{etde_27345,
title = {Nonmagnetic concrete. Guide for the superconductive magnetically levitated train system (Maglev); Hijisei concrete. Chodendo jiki fujoshiki tetsudoyo guide way}
author = {Tottori, S, and Sato, T}
abstractNote = {Non-magnetization is applied to concrete structures with which magnetic environment is a problem, such as a guideway for superconductive magnetically levitated train system (Maglev) and geomagnetism observation facilities. As an example, this paper introduces the conception and the design methods of guideways for Maglev. If reinforcing bars or tensing materials of common steel are placed close to a vehicle, inductive current is generated in the steel due to moving magnetic field, causing a problem to form part of driving resistance. The inductive current includes loop current and eddy current. The former current may be prevented if the contact resistance in steels with each other is about one ohm or more, but the latter current has no other means but to minimize it as long as the material is electrically conductive. Conceivable measures may include the use as reinforcing bars of non magnetic high Mn-steel with electric specific resistance of 4 to 5 times as large as that for common steel reinforcing bars, and the use of continuous reinforcing fibers such as aramid. The latter material requires strength design especially importantly, but has obtained good result when it was constructed at the experimental linear motor train guideway at Miyazaki, Japan. 5 refs., 6 figs.}
journal = {Konkurito Kogaku (Concrete Journal)}
issue = {7}
volume = {32}
journal type = {AC}
place = {Japan}
year = {1994}
month = {Jul}
}