通信用橋梁系設備の既往地震被害データに関する体系的整理と分析・考察  [in Japanese] PREVIOUS SEISMIC DAMAGE OF TELECOMMUNICATION PIPELINES IN BRIDGE SECTION  [in Japanese]

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<p> 2004年新潟県中越地震,2007年新潟県中越沖地震,2011年東北地方太平洋沖地震及び2016年熊本地震では通信管路に甚大な被害が生じた.本論文では,これらの中で曝された橋梁区間における通信管路を対象とした上で,橋梁種別,建設年,橋長及び液状化の有無を考慮した微地形区分の観点からデータセットを構築し,属性に対するクロス集計を行い,被害率<i>R</i>の特徴を分析した.さらに,地震動強さの指標である地表面最大加速度<i>PGA</i>,地表面最大速度<i>PGV</i>,スペクトル強度<i>SI</i>及び計測震度<i>IJ</i>を取りあげ,地震動強さと被害率<i>R</i>の関係を明らかにし,標準被害率データの抽出及びそのモデル化を試みた.</p>

<p> The 2004 Niigataken Chuetsu earthquake, the 2007 Niigataken Chuetsu offshore earthquake and the 2016 Kumamoto earthquake caused severe damage to the telecommunication pipelines in bridge section. In this study, data set was constructed from view of points of bridge type, construction year, bridge length, micro-topography and liquefaction occurrence for the telecommunication pipelines exposed to previous seismic damage, In addition, the peak ground acceleration PGA, the peak ground velocity PGV, the value of spectral intensity SI and the instrumental seismic intensity IJ, which are indicators of the ground motion intensity, are selected and the relation between these indicators and the damage rate was revealed.</p>

Journal

  • Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 75(4), I_170-I_188, 2019

    Japan Society of Civil Engineers

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