Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Corrugated steel web bridge closure section construction method
The invention discloses a corrugated steel web bridge closure section construction method. The method comprises the following steps that side span closure is conducted firstly, then middle span closure is conducted, and side span closure comprises the following construction steps that a closure hanging bracket is installed, a water tank counterweight is added to the cantilever end, and the water containing weight of the water tank is half of the concrete weight of a closure section; the stiff skeleton is locked and the corrugated steel web is spliced during the stable deformation period of the cantilever beam; formwork erecting, and binding reinforcing steel bars and prestressed pipelines are processed; closure section concrete is poured, and during pouring, the water tank synchronously discharges water in an equal-weight mode so that stability of the cantilever end can be kept; when the concrete strength is not lower than 90% of the designed concrete strength grade and the concrete age is not smaller than 7 days, the steel beams are tensioned to the designed tonnage according to the sequence of long beams and short beams, and tensioning is conducted evenly and symmetrically; and the closure section hanging bracket is dismantled. According to the method, problems of long construction period consumption and high engineering measure cost of a continuous bridge closure method in the related technology are solved.
本申请公开了一种波形钢腹板桥梁合龙段施工方法，该方法包括先进行边跨合龙，再进行中跨合龙，其中，所述边跨合龙包括如下施工步骤：安装合龙吊架，在悬臂端加水箱配重，水箱的容水重量为合龙段混凝土重量的一半；在悬臂梁变形较为稳定时段锁定劲性骨架和拼接波形钢腹板；立模、绑扎钢筋和预应力管道；浇筑合龙段混凝土，浇筑的同时，水箱同步等重放水，以保持悬臂端的稳定；待混凝土强度不低于设计混凝土强度等级的90％，且砼龄期不小于7天，按先长束、后短束的顺序张拉钢束至设计吨位，张拉应均匀对称进行；拆除合龙段吊架。本申请解决了相关技术中连续桥梁合龙方法存在消耗工期长、工程措施费用高的问题。
Corrugated steel web bridge closure section construction method
The invention discloses a corrugated steel web bridge closure section construction method. The method comprises the following steps that side span closure is conducted firstly, then middle span closure is conducted, and side span closure comprises the following construction steps that a closure hanging bracket is installed, a water tank counterweight is added to the cantilever end, and the water containing weight of the water tank is half of the concrete weight of a closure section; the stiff skeleton is locked and the corrugated steel web is spliced during the stable deformation period of the cantilever beam; formwork erecting, and binding reinforcing steel bars and prestressed pipelines are processed; closure section concrete is poured, and during pouring, the water tank synchronously discharges water in an equal-weight mode so that stability of the cantilever end can be kept; when the concrete strength is not lower than 90% of the designed concrete strength grade and the concrete age is not smaller than 7 days, the steel beams are tensioned to the designed tonnage according to the sequence of long beams and short beams, and tensioning is conducted evenly and symmetrically; and the closure section hanging bracket is dismantled. According to the method, problems of long construction period consumption and high engineering measure cost of a continuous bridge closure method in the related technology are solved.
本申请公开了一种波形钢腹板桥梁合龙段施工方法，该方法包括先进行边跨合龙，再进行中跨合龙，其中，所述边跨合龙包括如下施工步骤：安装合龙吊架，在悬臂端加水箱配重，水箱的容水重量为合龙段混凝土重量的一半；在悬臂梁变形较为稳定时段锁定劲性骨架和拼接波形钢腹板；立模、绑扎钢筋和预应力管道；浇筑合龙段混凝土，浇筑的同时，水箱同步等重放水，以保持悬臂端的稳定；待混凝土强度不低于设计混凝土强度等级的90％，且砼龄期不小于7天，按先长束、后短束的顺序张拉钢束至设计吨位，张拉应均匀对称进行；拆除合龙段吊架。本申请解决了相关技术中连续桥梁合龙方法存在消耗工期长、工程措施费用高的问题。
Corrugated steel web bridge closure section construction method
波形钢腹板桥梁合龙段施工方法
SONG ERLONG (Autor:in) / TANG GANGXIANG (Autor:in) / HOU ZHAOLONG (Autor:in) / LIU FENGFENG (Autor:in) / NAN YUCHUAN (Autor:in) / LIU SHUWANG (Autor:in) / LYU XIANCHUANG (Autor:in) / LIU SHUAI (Autor:in)
06.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
| Europäisches Patentamt | 2021
Corrugated steel web cast-in-place cantilever box girder closure section construction method
| Europäisches Patentamt | 2022