Cast-in-place box beam embracing hoop supporting frame system and construction method thereof
A support system and box girder technology, applied in bridges, bridge materials, bridge construction, etc., can solve the problems of difficult handling, poor stability, spoiled rocks, spoiled soil, and failure to use it, achieving good safety, low construction cost, and high construction efficiency. The effect of cost reduction
Active Publication Date: 2017-07-07
NO 1 ENG CO LTD OF FHEC OF CCCC
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The entire bridge is located on a hillside, the terrain is steep, and there are a lot of spoiled stones and spoils with poor stability on the surface, and it is difficult to deal with them.
It is not possible to use full support or frame method for construction
Method used
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[0048] Such as Figure 1 to Figure 5 As shown, the cast-in-place box girder hoop support system of the present invention includes pier 12 and conventional support 11 and the cast-in-place box girder 10 supported by conventional support, wherein:
[0049] Hoop support frame: The hoop support frame is a triangular support frame. The hoop support frame is composed of main support beam 3, main beam 2, transverse reinforcement beam 9, oblique reinforcement beam 8, upper hoop 1, lower hoop 7 and middle hoop 5. The upper ends of the two main support beams are fixed on both sides of the lower end of the main beam, and the lower ends of the two main support beams are fixed as a whole. The upper and middle parts of the main supporting beam are provided with two transverse reinforcing beams parallel to the main beam. An inclined reinforcing beam is arranged on the main supporting beam between the two transverse reinforcing beams. The upper hoop, the middle hoop and the lower hoop are ...
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Abstract
The invention belongs to a cast-in-place box beam embracing hoop supporting frame system and a construction method thereof. The system is constituted by embracing hoop supporting frames and tree-root piles. The embracing hoop supporting frames are constituted by main supporting beams, main cross beams, transverse reinforcing beams, inclined reinforcing beams, upper embracing hoops, lower embracing hoops and intermediate embracing hoops. The tree-root piles are constituted by a plurality of screw rod reinforcing piles, reinforced concrete connecting disks and pile foundations. The construction method comprises the steps that the bearing loading weight of a cast-in-place box beam to be constructed, the original bearing weight of bridge piers and the pile foundations and the bearing weight of each screw rod reinforcing pile are calculated separately; and if the original bearing weight of the bridge piers and the pile foundations is larger or smaller or equal to the bearing loading weight of the cast-in-place box beam to be constructed, and the embracing hoop supporting frames or the embracing hoop supporting frames and the tree-root piles are used to conduct construction. According to the construction system and method of the embracing hoops added with the tree-root piles, construction can be conducted in a severe construction area with complex terrain, geology and landform, and the system and method have the advantages that the construction cost is saved, time and labor are saved, the construction cost is low, the construction quality is good, safety and the using effect are good.
Description
technical field [0001] The invention belongs to a cast-in-situ box girder hoop support system and a construction method thereof. Background technique [0002] With the rapid development of the economy, there are more and more construction projects for widening and adding lines to old roads and railways. Since the design of the bridge piers of old roads and railways is completed based on the loads of the originally designed roads and railways, the loads of widening and line extension reconstruction are usually equal to or exceed the loads of the original design of bridge piers. For this reason, the traditional method mostly adopts the full-wall support or the frame method for construction. The full-wall frame or frame method is a construction method in which support frames are densely built from the bottom of the bridge, and the bridge deck operation supports are carried out to share the original bridge pier design. load. As we all know, the bracket method or the frame meth...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E01D21/00E02D27/14E01D101/24
CPCE01D21/00E01D2101/24E02D27/14E02D2200/1614E02D2300/002
Inventor 马宏宇李红
Owner NO 1 ENG CO LTD OF FHEC OF CCCC