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A platform for research: civil engineering, architecture and urbanism
Novel rigid frame bridge corbel bracket mechanism, construction method and finished bridge linear deformation control method of novel rigid frame bridge corbel bracket mechanism
The invention relates to the technical field of bridge construction, in particular to a novel rigid frame bridge corbel bracket mechanism, a construction method and a finished bridge linear deformation control method.The novel rigid frame bridge corbel bracket mechanism comprises anti-shearing steel bars pre-buried on the sides, away from each other, of two concrete parts, and upper supporting legs are fixedly installed on the anti-shearing steel bars and are obliquely arranged; an upper bracket is mounted at the top of the upper supporting leg; a bracket bracket and a steel truss are adopted as a formwork support, a tower column outer side formwork utilizes a creeping formwork outer side formwork, the truss and a beam body inner and outer formwork are all large steel formworks, pouring is completed on the bracket in three times, and the cantilever support is safe and stable; and after prepressing, gaps and inelastic deformation of vertical rod pieces of the bracket under the prepressing load effect are basically eliminated, meanwhile, a one-time mud jacking technology is adopted to ensure that pressed-in cement paste is full and dense, linear deformation of the bracket is effectively controlled, and control work in the construction process is facilitated.
本发明涉及桥梁施工技术领域，具体为一种新型刚构桥牛腿托架机构、施工方法及其成桥线性变形控制方法，包括预埋在两个混凝土件相互远离一侧上的抗剪钢棒，抗剪钢棒上固定安装有上支撑腿，且上支撑腿为倾斜设置，上支撑腿的顶部安装有上支架；采用牛腿托架和钢桁架作为模板支架，塔柱外侧模板利用爬模外侧模及桁架，梁体内外模均采用大块钢模，在托架上分三次浇筑完成，悬挑支架安全稳固；且预压后托架已基本消除预压荷载作用下托架各竖向杆件的间隙及非弹性变形，同时，采用一次压浆工艺保证压入之水泥浆饱满，密实，有效控制托架线性变形，利于施工过程的控制工作。
Novel rigid frame bridge corbel bracket mechanism, construction method and finished bridge linear deformation control method of novel rigid frame bridge corbel bracket mechanism
The invention relates to the technical field of bridge construction, in particular to a novel rigid frame bridge corbel bracket mechanism, a construction method and a finished bridge linear deformation control method.The novel rigid frame bridge corbel bracket mechanism comprises anti-shearing steel bars pre-buried on the sides, away from each other, of two concrete parts, and upper supporting legs are fixedly installed on the anti-shearing steel bars and are obliquely arranged; an upper bracket is mounted at the top of the upper supporting leg; a bracket bracket and a steel truss are adopted as a formwork support, a tower column outer side formwork utilizes a creeping formwork outer side formwork, the truss and a beam body inner and outer formwork are all large steel formworks, pouring is completed on the bracket in three times, and the cantilever support is safe and stable; and after prepressing, gaps and inelastic deformation of vertical rod pieces of the bracket under the prepressing load effect are basically eliminated, meanwhile, a one-time mud jacking technology is adopted to ensure that pressed-in cement paste is full and dense, linear deformation of the bracket is effectively controlled, and control work in the construction process is facilitated.
本发明涉及桥梁施工技术领域，具体为一种新型刚构桥牛腿托架机构、施工方法及其成桥线性变形控制方法，包括预埋在两个混凝土件相互远离一侧上的抗剪钢棒，抗剪钢棒上固定安装有上支撑腿，且上支撑腿为倾斜设置，上支撑腿的顶部安装有上支架；采用牛腿托架和钢桁架作为模板支架，塔柱外侧模板利用爬模外侧模及桁架，梁体内外模均采用大块钢模，在托架上分三次浇筑完成，悬挑支架安全稳固；且预压后托架已基本消除预压荷载作用下托架各竖向杆件的间隙及非弹性变形，同时，采用一次压浆工艺保证压入之水泥浆饱满，密实，有效控制托架线性变形，利于施工过程的控制工作。
Novel rigid frame bridge corbel bracket mechanism, construction method and finished bridge linear deformation control method of novel rigid frame bridge corbel bracket mechanism
一种新型刚构桥牛腿托架机构、施工方法及其成桥线性变形控制方法
REN JIE (author) / QIAN CHENG (author) / TANG RUI (author) / WANG KAI (author) / WANG YIXIAN (author) / NIU CAOYUAN (author) / MA WEN (author) / LIU YU-LI (author)
2024-11-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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