Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SEISMIC STRENGTHENING METHOD AND BRIDGE
To provide seismic strengthening technology that can be easily constructed even when there are factors specific to existing bridges in bridges with continuous girders.SOLUTION: The degree of horizontal restraint of bearings B2, B3, B4 installed on piers P1 to P3 is adjusted for abutments A1, A2 and the piers P1 to P3 that support a continuous girder G. The bearings B2, B3, B4 continue to transmit the weight of a connection girder to the piers P1 to P3. Further, the bearings B1, B5 installed on the abutments A1, A2 are left as they are (except for the degree of horizontal restraint adjustment). For bridge piers P1 to P3 where construction conditions are severe, seismic strengthening will not be performed, and seismic strengthening will be performed for abutments A1, A2, where construction conditions are less restrictive.SELECTED DRAWING: Figure 3
【課題】連続桁を有する橋梁において、既設橋梁特有の要因がある場合でも、容易に施工可能な耐震補強技術を提供する。【解決手段】連続桁Ｇを支持する橋台Ａ１，Ａ２および橋脚Ｐ１〜Ｐ３のうち、橋脚Ｐ１〜Ｐ３に設置される支承Ｂ２，Ｂ３，Ｂ４について水平方向の拘束度合いを調整する。なお、支承Ｂ２，Ｂ３，Ｂ４は引き続き連結桁の自重を橋脚Ｐ１〜Ｐ３に伝達する。また、橋台Ａ１，Ａ２に設置される支承Ｂ１，Ｂ５は既存のままとする（水平方向拘束度合調整対象外）。施工条件が厳しい橋脚Ｐ１〜Ｐ３においては、耐震補強を行わず、施工条件の制約が緩い橋台Ａ１，Ａ２にて耐震補強をおこなう。【選択図】図３
SEISMIC STRENGTHENING METHOD AND BRIDGE
To provide seismic strengthening technology that can be easily constructed even when there are factors specific to existing bridges in bridges with continuous girders.SOLUTION: The degree of horizontal restraint of bearings B2, B3, B4 installed on piers P1 to P3 is adjusted for abutments A1, A2 and the piers P1 to P3 that support a continuous girder G. The bearings B2, B3, B4 continue to transmit the weight of a connection girder to the piers P1 to P3. Further, the bearings B1, B5 installed on the abutments A1, A2 are left as they are (except for the degree of horizontal restraint adjustment). For bridge piers P1 to P3 where construction conditions are severe, seismic strengthening will not be performed, and seismic strengthening will be performed for abutments A1, A2, where construction conditions are less restrictive.SELECTED DRAWING: Figure 3
【課題】連続桁を有する橋梁において、既設橋梁特有の要因がある場合でも、容易に施工可能な耐震補強技術を提供する。【解決手段】連続桁Ｇを支持する橋台Ａ１，Ａ２および橋脚Ｐ１〜Ｐ３のうち、橋脚Ｐ１〜Ｐ３に設置される支承Ｂ２，Ｂ３，Ｂ４について水平方向の拘束度合いを調整する。なお、支承Ｂ２，Ｂ３，Ｂ４は引き続き連結桁の自重を橋脚Ｐ１〜Ｐ３に伝達する。また、橋台Ａ１，Ａ２に設置される支承Ｂ１，Ｂ５は既存のままとする（水平方向拘束度合調整対象外）。施工条件が厳しい橋脚Ｐ１〜Ｐ３においては、耐震補強を行わず、施工条件の制約が緩い橋台Ａ１，Ａ２にて耐震補強をおこなう。【選択図】図３
SEISMIC STRENGTHENING METHOD AND BRIDGE
耐震補強方法および橋梁
ISHIBASHI TADAYOSHI (Autor:in) / OBA KOSHO (Autor:in)
19.03.2020
Patent
Elektronische Ressource
Japanisch
IPC:
E01D
BRIDGES
,
Brücken
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