Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bridge pile active underpinning method
The invention discloses a bridge pile active underpinning method which comprises the following steps that S1, a new pile foundation is constructed and pre-pressed, a first new bearing platform is constructed, and a temporary support is installed on the top of the first new bearing platform; S2, an upper beam body or a cover beam is jacked so that the original stand columns can be completely unloaded, the original stand columns and an original bearing platform are dismantled, and conflict pile foundations are pulled out; S3, a second new bearing platform is constructed, and a new stand column is newly built; S4, the first new bearing platform and the second new bearing platform are connected into a whole, and a new bearing platform assembly is formed; and S5, the prestress of the new bearing platform assembly is tensioned, and the temporary support is dismantled. By the adoption of the underpinning method, traffic limitation or temporary traffic sealing is needed in the period of jacking and connecting the first new bearing platform and the second new bearing platform, and vehicles can pass through the bridge floor in other time.
本发明公开了一种桥桩主动托换方法，其包括以下步骤：S1、施作新桩基并预压，施工第一新承台，在第一新承台的顶部安装临时支撑；S2、顶升上部梁体或盖梁以使原立柱完全卸载，并拆除原立柱、原承台，拔除冲突桩基；S3、施工第二新承台，新建新立柱；S4、将第一新承台和第二新承台连接为一个整体并形成新承台组件；S5、张拉新承台组件预应力，并拆除临时支撑。采用这种托换方法，除在顶升和连接第一新承台和第二新承台的期间需要限制交通或临时封交外，其余时间桥面均可通车。
Bridge pile active underpinning method
The invention discloses a bridge pile active underpinning method which comprises the following steps that S1, a new pile foundation is constructed and pre-pressed, a first new bearing platform is constructed, and a temporary support is installed on the top of the first new bearing platform; S2, an upper beam body or a cover beam is jacked so that the original stand columns can be completely unloaded, the original stand columns and an original bearing platform are dismantled, and conflict pile foundations are pulled out; S3, a second new bearing platform is constructed, and a new stand column is newly built; S4, the first new bearing platform and the second new bearing platform are connected into a whole, and a new bearing platform assembly is formed; and S5, the prestress of the new bearing platform assembly is tensioned, and the temporary support is dismantled. By the adoption of the underpinning method, traffic limitation or temporary traffic sealing is needed in the period of jacking and connecting the first new bearing platform and the second new bearing platform, and vehicles can pass through the bridge floor in other time.
本发明公开了一种桥桩主动托换方法，其包括以下步骤：S1、施作新桩基并预压，施工第一新承台，在第一新承台的顶部安装临时支撑；S2、顶升上部梁体或盖梁以使原立柱完全卸载，并拆除原立柱、原承台，拔除冲突桩基；S3、施工第二新承台，新建新立柱；S4、将第一新承台和第二新承台连接为一个整体并形成新承台组件；S5、张拉新承台组件预应力，并拆除临时支撑。采用这种托换方法，除在顶升和连接第一新承台和第二新承台的期间需要限制交通或临时封交外，其余时间桥面均可通车。
Bridge pile active underpinning method
桥桩主动托换方法
WU ZHONG (Autor:in) / TIAN XIAOQING (Autor:in) / WANG PEIXIAO (Autor:in) / YAN JIXIN (Autor:in) / YUAN HUIFANG (Autor:in) / YU YANG (Autor:in) / SUN YIMING (Autor:in)
11.06.2021
Patent
Elektronische Ressource
Chinesisch
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