Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for bridge widening transformation
The invention discloses a construction method for bridge widening transformation. The construction method comprises the following steps that S1, pavement on an old bridge box girder is chiseled away; s2, elastic supports are installed on new bridge piers, and then new bridge box girders are installed; s3, a plurality of jacks are arranged on the new bridge box girder and the old bridge box top plate and the old bridge box bottom plate correspondingly, and the jacks are adopted to push the new bridge box girder and the old bridge box girder to generate horizontal displacement in the transverse direction according to theoretical distance data; s4, widening joint steel bar construction between the new bridge box girder and the old bridge box girder is conducted; the widening joint concrete is poured; s5, the thrust of the jack is gradually reduced; connecting steel plates are laid, a bridge deck reinforcing mesh is laid, concrete of a bridge deck pavement layer is poured, waterproof paint is constructed, and asphalt concrete is laid. According to the construction method, the quality of the splicing and widening joint concrete can be improved, the overall stress performance between a new bridge and an old bridge is improved, the safety of widening and transforming the bridge is improved, and the method is suitable for different box girder splicing modes.
本发明公开了一种桥梁拼宽改造的施工方法，包括以下步骤：S1，凿除旧桥箱梁上的铺装；S2，在新桥桥墩上安装弹性支座，然后安装新桥箱梁；S3，在新桥箱梁与旧桥箱顶板和底板上分别布置若干千斤顶，按照理论距离数据采用千斤顶推动新桥箱梁与旧桥箱梁之间在横向方向上产生水平位移；S4，进行新桥箱梁和旧桥箱梁之间的拼宽接缝钢筋施工；浇筑拼宽接缝混凝土；S5，逐步减小千斤顶的推力；铺设连接钢板及铺装桥面钢筋网，浇筑桥面铺装层的混凝土，施工防水涂料和铺装沥青混凝土。本发明施工方法能提高拼宽接缝混凝土的质量，提升新旧桥之间的整体受力性能，提高拓宽改造桥梁的安全性，该方法适用于不同箱梁拼接方式。
Construction method for bridge widening transformation
The invention discloses a construction method for bridge widening transformation. The construction method comprises the following steps that S1, pavement on an old bridge box girder is chiseled away; s2, elastic supports are installed on new bridge piers, and then new bridge box girders are installed; s3, a plurality of jacks are arranged on the new bridge box girder and the old bridge box top plate and the old bridge box bottom plate correspondingly, and the jacks are adopted to push the new bridge box girder and the old bridge box girder to generate horizontal displacement in the transverse direction according to theoretical distance data; s4, widening joint steel bar construction between the new bridge box girder and the old bridge box girder is conducted; the widening joint concrete is poured; s5, the thrust of the jack is gradually reduced; connecting steel plates are laid, a bridge deck reinforcing mesh is laid, concrete of a bridge deck pavement layer is poured, waterproof paint is constructed, and asphalt concrete is laid. According to the construction method, the quality of the splicing and widening joint concrete can be improved, the overall stress performance between a new bridge and an old bridge is improved, the safety of widening and transforming the bridge is improved, and the method is suitable for different box girder splicing modes.
本发明公开了一种桥梁拼宽改造的施工方法，包括以下步骤：S1，凿除旧桥箱梁上的铺装；S2，在新桥桥墩上安装弹性支座，然后安装新桥箱梁；S3，在新桥箱梁与旧桥箱顶板和底板上分别布置若干千斤顶，按照理论距离数据采用千斤顶推动新桥箱梁与旧桥箱梁之间在横向方向上产生水平位移；S4，进行新桥箱梁和旧桥箱梁之间的拼宽接缝钢筋施工；浇筑拼宽接缝混凝土；S5，逐步减小千斤顶的推力；铺设连接钢板及铺装桥面钢筋网，浇筑桥面铺装层的混凝土，施工防水涂料和铺装沥青混凝土。本发明施工方法能提高拼宽接缝混凝土的质量，提升新旧桥之间的整体受力性能，提高拓宽改造桥梁的安全性，该方法适用于不同箱梁拼接方式。
Construction method for bridge widening transformation
一种桥梁拼宽改造的施工方法
FU BIN (Autor:in) / LI MINGYU (Autor:in) / DANG HUFENG (Autor:in) / XIONG YAN (Autor:in) / ZHANG GUO (Autor:in) / WANG HUIBIN (Autor:in) / SU HANLIN (Autor:in) / BO YAN (Autor:in) / LIANG TENGFEI (Autor:in) / YANG CHAO (Autor:in)
12.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
Construction method for widening old bridge and bridge structure
| Europäisches Patentamt | 2024