Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Uneven jacking system and uneven jacking construction method for existing bridge superstructure
The invention discloses an existing bridge superstructure uneven jacking system which comprises a hydraulic synchronous control system, each bearing platform is provided with an enlarged foundation inthe circumferential direction, and the enlarged foundation of each bridge pier is upwards connected with a plurality of pairs of heightening jack mechanisms and heightening temporary bridge pier mechanisms. The invention further discloses a corresponding construction method. The method comprises the steps that 1, the enlarged foundation is built; 2, the variable-height jack mechanisms and the variable-height temporary pier mechanisms are installed on the bearing platform and/or the expanded foundation in pairs; 3, pier cutting and jacking are conducted; 4, piers are connected; 5, a connectingpier and a bent cap are newly built; 6, beam falling is carried out. In updating of existing infrastructure of a city, the existing bridge structure can be fully utilized, waste is reduced, the construction efficiency is improved, jacking equipment is convenient to install, jacks participating in jacking cannot be damaged, and the jacking amplitude of jacking mechanisms at piers can be accuratelycontrolled.
本发明公开了一种现有桥梁上部结构不均匀顶升系统，包括液压同步控制系统，每个承台沿周向分别设有扩大基础，各桥墩的扩大基础分别向上连接有若干对变高千斤顶机构和变高临时桥墩机构；本发明还公开了相应的施工方法，第一步骤是修建扩大基础；第二步骤是在承台和/或扩大基础上成对安装变高千斤顶机构和变高临时桥墩机构；第三步骤是截墩及顶升；第四步骤是接墩；第五步骤是新建交接墩及盖梁；第六步骤是落梁。本发明在城市现有基础设施更新中，能够充分利用现状桥梁结构，减少了浪费，提高了建设效率，方便安装顶升设备，不会捌坏参与顶升的千斤顶，能够精确控制各桥墩处顶升机构的顶升幅度。
Uneven jacking system and uneven jacking construction method for existing bridge superstructure
The invention discloses an existing bridge superstructure uneven jacking system which comprises a hydraulic synchronous control system, each bearing platform is provided with an enlarged foundation inthe circumferential direction, and the enlarged foundation of each bridge pier is upwards connected with a plurality of pairs of heightening jack mechanisms and heightening temporary bridge pier mechanisms. The invention further discloses a corresponding construction method. The method comprises the steps that 1, the enlarged foundation is built; 2, the variable-height jack mechanisms and the variable-height temporary pier mechanisms are installed on the bearing platform and/or the expanded foundation in pairs; 3, pier cutting and jacking are conducted; 4, piers are connected; 5, a connectingpier and a bent cap are newly built; 6, beam falling is carried out. In updating of existing infrastructure of a city, the existing bridge structure can be fully utilized, waste is reduced, the construction efficiency is improved, jacking equipment is convenient to install, jacks participating in jacking cannot be damaged, and the jacking amplitude of jacking mechanisms at piers can be accuratelycontrolled.
本发明公开了一种现有桥梁上部结构不均匀顶升系统，包括液压同步控制系统，每个承台沿周向分别设有扩大基础，各桥墩的扩大基础分别向上连接有若干对变高千斤顶机构和变高临时桥墩机构；本发明还公开了相应的施工方法，第一步骤是修建扩大基础；第二步骤是在承台和/或扩大基础上成对安装变高千斤顶机构和变高临时桥墩机构；第三步骤是截墩及顶升；第四步骤是接墩；第五步骤是新建交接墩及盖梁；第六步骤是落梁。本发明在城市现有基础设施更新中，能够充分利用现状桥梁结构，减少了浪费，提高了建设效率，方便安装顶升设备，不会捌坏参与顶升的千斤顶，能够精确控制各桥墩处顶升机构的顶升幅度。
Uneven jacking system and uneven jacking construction method for existing bridge superstructure
现有桥梁上部结构不均匀顶升系统及不均匀顶升施工方法
WANG MINGYUAN (Autor:in) / WU JIDONG (Autor:in) / GUANG JUNWEI (Autor:in) / CHEN BO (Autor:in) / REN ZONGWU (Autor:in) / MA YONG (Autor:in) / WANG LINGJUN (Autor:in) / LI QIYONG (Autor:in) / WANG SHEN (Autor:in) / LUO HAODONG (Autor:in)
05.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
Bridge continuous jacking system and jacking construction method
| Europäisches Patentamt | 2023
| British Library Conference Proceedings | 1998