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A combined mobile formwork for cast-in-place concrete box girder
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A technology of concrete box girder and moving formwork, applied in bridges, bridge construction, bridge materials, etc., can solve the problems of simply supported girder formwork installation, slow disassembly, low concrete pouring accuracy, etc., to improve production efficiency and economic benefits, The effect of enhanced reuse rate and simple structure
Active Publication Date: 2019-08-23
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP NO 4 ENG +1
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[0003] The present invention aims to solve the problems of slow installation and disassembly speed of existing simply supported beam formwork and low precision of concrete pouring, and provides a combined mobile formwork for cast-in-place concrete box girder
Method used
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specific Embodiment approach 1
[0036] Specific implementation mode one: combine Figure 1 to Figure 5 Describe this embodiment, the cast-in-place concrete box girder combined mobile formwork in this embodiment includes a formwork system, a formwork support system, a sliding system and a bracket system;
[0037] The formwork system includes an outer mold 1, a bottom mold 3, a corner mold 4 and an inner mold 2;
[0038] The template support system includes an upper adjustment support 7, an outer mold support frame 5, an inner mold support rod 6 and a jack 8;
[0039] The sliding system includes sliding joists 12, pulleys 13 and tracks 14;
[0040] Described support system comprises template support 19, sliding support 18, small distribution beam 17 and large distribution beam 20;
[0041] The outer two sides of the outer mold 1 are respectively provided with an outer mold supporting frame 5, and the bottom of the outer inclined part on both sides of the outer mold 1 is respectively provided with a template ...
specific Embodiment approach 2
[0048] Specific implementation mode two: combination figure 1 , Figure 4 with Figure 5 Describe this implementation mode, the difference between this implementation mode and specific implementation mode 1 is:
[0049] The inside of the top of the inner support vertical bar 31 is fixed with the upper pair of tension beams 23, and the inside of the bottom of the inner support vertical bar 31 is fixed with the lower pair of tension beams 22; The opposite longitudinal beams 23-1 are formed, and a gap is left between the two longitudinal beams, and the lower pair of tensioning longitudinal beams 22 are composed of two upper and lower opposite longitudinal beams 23-1, and a gap is left between the two longitudinal beams;
[0050]The upper pair of tie rods 10 passes through the upper pair of tension longitudinal beams 23, the outer mold 1 and the inner mold 2, and is tightened by nuts to fix the outer mold support frame 5 and the outer mold 1; the lower pair of tie rods 21 passes...
specific Embodiment approach 3
[0051] Embodiment 3: This embodiment is different from Embodiment 1 in that: the sliding joist 12 and the pulley groove 16 are fixed by spot welding. Others are the same as in the first embodiment.
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Abstract
The invention provides a cast-in-place concrete box girder combined moving formwork and relates to a concrete box girder moving formwork which is used to solve the problems that an existing simply supported beam formwork has a slow installing and dismantling speed and the concrete pouring precision is low. The moving formwork includes a formwork system, a formwork supporting system, a sliding system and a support system. The formwork system includes an outer die, a bottom die, an angle die and an inner die. The formwork supporting system includes an upper adjusting support, an outer die supporting frame, an inner die supporting rod and a jack. The sliding system includes a sliding joist, a pulley and a track. The support system includes a formwork support, a sliding support, a small distribution beam and a large distribution beam. The moving formwork is simple in structure and convenient to combine and dismantle, the formwork utilization rate can be improved, and the cast-in-place concrete box girder construction efficiency and quality are improved. The cast-in-place concrete box girder combined moving formwork is used for pouring a concrete box girder.
Description
technical field [0001] The invention relates to a concrete box girder mobile template. Background technique [0002] When multi-span concrete simply supported girder bridges are integrally cast by the cast-in-place method, in order to save construction costs, most of the formwork is reused in the form of upside down. However, due to the slow installation and disassembly speed and low precision of the traditional simply supported beam formwork, the construction efficiency is low, and the concrete quality and line type standards are reduced. Therefore, the traditional simple-supported beam formwork can no longer meet the technical needs of modern bridge construction. Rapid assembly and movement of formwork is one of the urgent technical problems in the construction of multi-span simply supported beam concrete bridges. Contents of the invention [0003] The invention aims to solve the problems of slow installation and disassembly speed of the existing simply supported beam f...
Claims
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Application Information
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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00E01D101/24
Inventor 宁世凯赵健胡利平岳旭光王洋张克辉邢天明任海涛谢润泽张卓建陈炎圻
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP NO 4 ENG
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