Concrete Journal
Online ISSN : 2186-2753
Print ISSN : 0387-1061
ISSN-L : 0387-1061
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Volume 36, Issue 5
Displaying 1-5 of 5 articles from this issue
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  • Reconstruction of Kobe Area after the Hyogoken-nanbu Earthquake
    Fumio Watanabe
    1998 Volume 36 Issue 5 Pages 3-7
    Published: May 01, 1998
    Released on J-STAGE: April 26, 2013
    DOIhttps://doi.org/10.3151/coj1975.36.5_3
    JOURNAL FREE ACCESS
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    During the Hyougoken-nanbu Earthquake, more than 6300 lives were lost. From this earthquake disaster the importance of seismic retrofit of existing buildings for public use is seen in a new light. Therefore the law for the promotion of seismic retrofit has been enacted. Based on the structural damage investigation seismic design provisions in the building standard law enforcement order were partly revised. The revision of building standard law is also in progress aiming performance-based design. The restoration works of damaged buildings has been put into practice and the City of Kobe is steadily recovering.
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  • Technological Innovation in Railway Structure System with Ladder Sleeper
    Hajime Wakui
    1998 Volume 36 Issue 5 Pages 8-16
    Published: May 01, 1998
    Released on J-STAGE: April 26, 2013
    DOIhttps://doi.org/10.3151/coj1975.36.5_8
    JOURNAL FREE ACCESS
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    The Ladder Sleeper, a kind of longitudinal sleeper developed by Railway Technical Research Institute in Japan, is a next generation rail-support component. It has a “ladder” shape, in which both parallel longitudinal concrete beams are connected to each other with steel pipe connectors. The longitudinal concrete beam supports and holds a rail continuously, resulting in a new “composite rail” which has a superior load carrying capacity and a high lateral track stability. It is expected that the ballasted Ladder Track will have much less deterioration caused by ballast-wear. Floating Ladder Tracks could be a breakthrough for non-ballasted tracks, replacing slab tracks. Using floating Ladder Tracks results in economical, environmentally friendly and earthquake-resistant viaducts. The safety, environment, maintenance, and cost improvements that will come with switching to Ladder Track System, promise major progress in railway structure and railway management.
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese]
    1998 Volume 36 Issue 5 Pages 17-21
    Published: May 01, 1998
    Released on J-STAGE: April 26, 2013
    DOIhttps://doi.org/10.3151/coj1975.36.5_17
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese]
    1998 Volume 36 Issue 5 Pages 22-26
    Published: May 01, 1998
    Released on J-STAGE: April 26, 2013
    DOIhttps://doi.org/10.3151/coj1975.36.5_22
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese]
    1998 Volume 36 Issue 5 Pages 27-31
    Published: May 01, 1998
    Released on J-STAGE: April 26, 2013
    DOIhttps://doi.org/10.3151/coj1975.36.5_27
    JOURNAL FREE ACCESS
    Download PDF (12294K)
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