JP4236670B2 - 落橋防止構造 - Google Patents
落橋防止構造 Download PDFInfo
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- JP4236670B2 JP4236670B2 JP2006088848A JP2006088848A JP4236670B2 JP 4236670 B2 JP4236670 B2 JP 4236670B2 JP 2006088848 A JP2006088848 A JP 2006088848A JP 2006088848 A JP2006088848 A JP 2006088848A JP 4236670 B2 JP4236670 B2 JP 4236670B2
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- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 230000003187 abdominal effect Effects 0.000 claims description 15
- 210000001015 abdomen Anatomy 0.000 claims description 7
- 239000000463 material Substances 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Description
図1、図2、図4、図5等に示すように、コンクリート製橋脚1の橋座面1a上に左径間橋桁2の桁端と右径間橋桁2の桁端とを、各桁端面が対向するように支持する。
図1、図2に示す落橋防止構造は、橋脚1の橋座面1a上において隣接する橋桁2間に上記共通構造において説明したコンクリート製横梁3を横設して隣接する橋桁2を連結すると共に、下端を橋脚1内に埋設し上端を橋座面1aから立ち上げたアンカー棒4を設け、該アンカー棒4の立ち上げ部5を上記コンクリート製横梁3の下面から同横梁3内に挿入して該コンクリート製横梁3と橋脚1間を橋軸方向と直交する方向において連結した構成を有する。
図4、図5に示す落橋防止構造は、橋脚1の橋座面1a上において隣接する左径間橋桁2の桁端間に上記共通構造において説明したコンクリート製横梁3を横設して隣接する桁端を連結すると共に、右径間橋桁2の桁端間にコンクリート製横梁3を横設して隣接する桁端を連結し、両コンクリート製横梁3を橋長方向に延びる連結条材17にて互いに連結した構成を有する。
Claims (1)
- コンクリート製橋脚の橋座面上に鋼桁から成る左径間橋桁の桁端と鋼桁から成る右径間橋桁の桁端とを各桁端面が対向するように上記鋼桁の下部フランジを以って支持し、該橋脚の橋座面上において隣接する上記左径間橋桁の桁端間に第1コンクリート製横梁を横設し、該第1コンクリート製横梁を橋幅方向に貫き且つ隣接左径間橋桁の腹板に貫挿した第1連結棒材を介して同横梁に上記隣接左径間橋桁の桁端を連結すると共に、上記右径間橋桁の桁端間に第2コンクリート製横梁を横設し、該第2コンクリート製横梁を橋幅方向に貫き且つ隣接右径間橋桁の腹板に貫挿した第2連結棒材を介して同横梁に上記隣接右径間橋桁の桁端を連結し、更に下端を橋脚内に埋設し上端を橋座面から立ち上げた第1、第2アンカー棒を設け、該第1、第2アンカー棒の立ち上げ部を上記第1、第2コンクリート製横梁の下面から各横梁内に夫々挿入して該第1、第2コンクリート製横梁と橋脚間を連結した構造を有し、上記第1、第2コンクリート製横梁の夫々は隣接する橋桁の腹板の側面の高さの途中から下部フランジの上面に至る腹板側面に密着するように打設したことを特徴とする落橋防止構造。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006088848A JP4236670B2 (ja) | 2006-03-28 | 2006-03-28 | 落橋防止構造 |
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JP2006088848A JP4236670B2 (ja) | 2006-03-28 | 2006-03-28 | 落橋防止構造 |
Publications (2)
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JP2007262746A JP2007262746A (ja) | 2007-10-11 |
JP4236670B2 true JP4236670B2 (ja) | 2009-03-11 |
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JP2006088848A Active JP4236670B2 (ja) | 2006-03-28 | 2006-03-28 | 落橋防止構造 |
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JP (1) | JP4236670B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103255706A (zh) * | 2013-06-04 | 2013-08-21 | 招商局重庆交通科研设计院有限公司 | 双自由度吸能式防落梁装置 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104652251A (zh) * | 2015-02-04 | 2015-05-27 | 扬州邗江中科南工结构监测与控制研究中心 | 一种新型防落梁装置 |
KR101640535B1 (ko) * | 2015-11-25 | 2016-07-19 | 주식회사 하이드로코리아 | 지점부 전도방지 및 수평변위 제어가 가능한 교량시공방법 |
CN105839514A (zh) * | 2016-05-20 | 2016-08-10 | 福州大学 | 滑移式桥台搭板构造及施工方法 |
CN105839516B (zh) * | 2016-06-07 | 2017-06-23 | 长安大学 | 一种桥梁横向防落梁装置及其施工方法 |
CN107558357A (zh) * | 2017-09-06 | 2018-01-09 | 昂徕博智能科技(昆山)有限公司 | 一种耗能的桥梁上部结构及施工方法 |
CN109235232B (zh) * | 2018-09-21 | 2024-04-19 | 中铁第四勘察设计院集团有限公司 | 一种桥梁相邻梁端横向限位装置 |
CN112376410B (zh) * | 2020-11-13 | 2022-04-05 | 重庆交通大学 | 一种自平衡式防落梁支座 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0742115A (ja) * | 1993-07-28 | 1995-02-10 | Bridgestone Corp | 遊間維持機能を持つアンカー装置 |
JPH08232211A (ja) * | 1995-02-28 | 1996-09-10 | Tokai Rubber Ind Ltd | 落橋防止装置 |
JP3053568B2 (ja) * | 1996-04-19 | 2000-06-19 | 株式会社ピー・エス | 桁 橋 |
JP4002771B2 (ja) * | 2002-03-06 | 2007-11-07 | トピー工業株式会社 | 既設単純桁橋梁を連続化した連続桁構造 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103255706A (zh) * | 2013-06-04 | 2013-08-21 | 招商局重庆交通科研设计院有限公司 | 双自由度吸能式防落梁装置 |
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