Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bracket reverse fulcrum pre-pressing construction method
The invention relates to the technical field of constructional engineering, in particular to a bracket reverse fulcrum pre-pressing construction method which is used for bridge engineering 0 # block bracket pre-pressing and comprises the steps that 1, pre-pressing preparation is conducted, specifically, finish rolling deformed steel bars are pre-buried when a bearing platform is poured; processing a pre-pressing truss, wherein the pre-pressing truss is composed of a main beam and a carrying pole beam; 2, jacks are installed, specifically, the jacks are sequentially arranged on the top face of the bracket according to the calculated positions; 3, pre-pressing trusses are installed, specifically, the pre-pressing trusses are sequentially installed on the top face of the bracket according to the arrangement positions of the jacks; 4, the finish rolling deformed steel bars are lengthened, specifically, the pre-embedded finish rolling deformed steel bars of the bearing platform are lengthened one by one to reach the top of a carrying pole beam of the pre-pressing truss, and the lengthened finish rolling deformed steel bars and the carrying pole beam of the pre-pressing truss are locked; and 5, jacking is conducted, specifically, according to the calculated load, jacking is conducted upwards through a jack, and pre-pressing of the bracket is completed. The technical problems that conventional prepressing is low in efficiency and poor in safety are solved.
本发明涉及建筑工程技术领域，具体涉及一种托架反支点预压施工方法，用于桥梁工程0#块托架预压，包括：步骤1，预压准备：精轧螺纹钢预埋，在承台浇筑时预埋精轧螺纹钢；预压桁架加工，所述预压桁架由主梁与扁担梁组成；步骤2，千斤顶安装：按照计算位置，在托架顶面依次布置千斤顶；步骤3，预压桁架安装：按照千斤顶布置位置，在托架顶面依次安装预压桁架；步骤4，精轧螺纹钢接长：将承台预埋精轧螺纹钢逐根接长，直达预压桁架的扁担梁顶部，并锁死接长后的精轧螺纹钢与预压桁架的扁担梁；步骤5，顶升：根据计算荷载，通过千斤顶向上顶升，完成托架的预压。本发明解决了常规预压效率低与安全性差的技术问题。
Bracket reverse fulcrum pre-pressing construction method
The invention relates to the technical field of constructional engineering, in particular to a bracket reverse fulcrum pre-pressing construction method which is used for bridge engineering 0 # block bracket pre-pressing and comprises the steps that 1, pre-pressing preparation is conducted, specifically, finish rolling deformed steel bars are pre-buried when a bearing platform is poured; processing a pre-pressing truss, wherein the pre-pressing truss is composed of a main beam and a carrying pole beam; 2, jacks are installed, specifically, the jacks are sequentially arranged on the top face of the bracket according to the calculated positions; 3, pre-pressing trusses are installed, specifically, the pre-pressing trusses are sequentially installed on the top face of the bracket according to the arrangement positions of the jacks; 4, the finish rolling deformed steel bars are lengthened, specifically, the pre-embedded finish rolling deformed steel bars of the bearing platform are lengthened one by one to reach the top of a carrying pole beam of the pre-pressing truss, and the lengthened finish rolling deformed steel bars and the carrying pole beam of the pre-pressing truss are locked; and 5, jacking is conducted, specifically, according to the calculated load, jacking is conducted upwards through a jack, and pre-pressing of the bracket is completed. The technical problems that conventional prepressing is low in efficiency and poor in safety are solved.
本发明涉及建筑工程技术领域，具体涉及一种托架反支点预压施工方法，用于桥梁工程0#块托架预压，包括：步骤1，预压准备：精轧螺纹钢预埋，在承台浇筑时预埋精轧螺纹钢；预压桁架加工，所述预压桁架由主梁与扁担梁组成；步骤2，千斤顶安装：按照计算位置，在托架顶面依次布置千斤顶；步骤3，预压桁架安装：按照千斤顶布置位置，在托架顶面依次安装预压桁架；步骤4，精轧螺纹钢接长：将承台预埋精轧螺纹钢逐根接长，直达预压桁架的扁担梁顶部，并锁死接长后的精轧螺纹钢与预压桁架的扁担梁；步骤5，顶升：根据计算荷载，通过千斤顶向上顶升，完成托架的预压。本发明解决了常规预压效率低与安全性差的技术问题。
Bracket reverse fulcrum pre-pressing construction method
一种托架反支点预压施工方法
WANG CHAO (Autor:in) / YANG GUANGLIANG (Autor:in) / FAN ZHIJUN (Autor:in) / DENG JIEXIN (Autor:in) / LI YANG (Autor:in) / AI QING (Autor:in) / CHEN JIE (Autor:in) / LIU JIE (Autor:in) / YANG LANGLIN (Autor:in) / QIN GUO (Autor:in)
08.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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