Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of temporary supporting system during pier replacement of existing bridge
The invention belongs to the technical field of bridge construction, and relates to a construction method of a temporary supporting system during pier replacement of an existing bridge. The method comprises the steps that a construction area near an original pier is hardened and leveled; construction of a foundation platform is conducted on the ground on the two longitudinal sides of the original pier, and a plurality of supporting bases are pre-buried in the foundation platform; two sets of steel pipe supports are arranged below bridge spans on the two longitudinal sides of an original pier respectively, and each set of steel pipe support comprises a front row of steel pipe frames and a rear row of steel pipe frames. A set of jacking system is mounted at the top of each front row of steel pipe frames, and the top surface of the jacking system is in compression joint with the bottom surface of the T-shaped beam so as to jack a bridge span, temporarily support the bridge span after jacking and fall the bridge span after pier replacement; a set of emergency jacking system is mounted at the top of each row of steel pipe frames, and a safety gap is reserved between the top surface of the emergency jacking system and the bottom surface of the T-shaped beam. A stable and reliable temporary supporting system can be provided for pier replacement of the existing bridge, the construction safety during pier replacement is ensured, and the construction difficulty of the temporary supporting system is reduced.
本发明属于桥梁施工技术领域，涉及一种既有桥梁换墩时临时支撑体系的施工方法。该方法包括：对原有桥墩附近施工区域进行硬化整平；在原有桥墩纵向两侧地面上进行基础承台的施工，并将多个支撑座预埋在基础承台内；在原有桥墩纵向两侧的桥跨下方分别设置一套钢管支架，每套钢管支架包括前后两排钢管架；每一前排钢管架顶部安装一套顶升系统，其顶面与T梁底面相压接，以对桥跨进行顶升、顶升后的临时支撑、换墩后的回落；每一后排钢管架顶部安装一套应急顶撑系统，其顶面与T梁底面之间预留有安全间隙。本发明能够为既有桥梁换墩提供一种稳固可靠的临时支撑体系，确保换墩时的施工安全性，并降低临时支撑体系的施工难度。
Construction method of temporary supporting system during pier replacement of existing bridge
The invention belongs to the technical field of bridge construction, and relates to a construction method of a temporary supporting system during pier replacement of an existing bridge. The method comprises the steps that a construction area near an original pier is hardened and leveled; construction of a foundation platform is conducted on the ground on the two longitudinal sides of the original pier, and a plurality of supporting bases are pre-buried in the foundation platform; two sets of steel pipe supports are arranged below bridge spans on the two longitudinal sides of an original pier respectively, and each set of steel pipe support comprises a front row of steel pipe frames and a rear row of steel pipe frames. A set of jacking system is mounted at the top of each front row of steel pipe frames, and the top surface of the jacking system is in compression joint with the bottom surface of the T-shaped beam so as to jack a bridge span, temporarily support the bridge span after jacking and fall the bridge span after pier replacement; a set of emergency jacking system is mounted at the top of each row of steel pipe frames, and a safety gap is reserved between the top surface of the emergency jacking system and the bottom surface of the T-shaped beam. A stable and reliable temporary supporting system can be provided for pier replacement of the existing bridge, the construction safety during pier replacement is ensured, and the construction difficulty of the temporary supporting system is reduced.
本发明属于桥梁施工技术领域，涉及一种既有桥梁换墩时临时支撑体系的施工方法。该方法包括：对原有桥墩附近施工区域进行硬化整平；在原有桥墩纵向两侧地面上进行基础承台的施工，并将多个支撑座预埋在基础承台内；在原有桥墩纵向两侧的桥跨下方分别设置一套钢管支架，每套钢管支架包括前后两排钢管架；每一前排钢管架顶部安装一套顶升系统，其顶面与T梁底面相压接，以对桥跨进行顶升、顶升后的临时支撑、换墩后的回落；每一后排钢管架顶部安装一套应急顶撑系统，其顶面与T梁底面之间预留有安全间隙。本发明能够为既有桥梁换墩提供一种稳固可靠的临时支撑体系，确保换墩时的施工安全性，并降低临时支撑体系的施工难度。
Construction method of temporary supporting system during pier replacement of existing bridge
既有桥梁换墩时临时支撑体系的施工方法
YANG JIANXUN (Autor:in) / LIU MING (Autor:in) / MENG YUTUAN (Autor:in) / ZHANG CHI (Autor:in) / MA HUANHUAN (Autor:in) / GUO WEI (Autor:in) / LI XIN (Autor:in) / ZHAO CHUNPU (Autor:in) / LIN HAN (Autor:in) / XING YUHAI (Autor:in)
27.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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