Construction device for increasing compactness of zero block concrete of continuous beam

Abstract

The utility model discloses a construction device for increasing the compactness of zero block concrete of a continuous beam. The construction device comprises a plurality of first tumbling barrels, a plurality of hoppers and a plurality of second tumbling barrels, the first tumbling barrel is vertically embedded and bound in a continuous beam zero block reinforcement cage; a plurality of hoppers are arranged above the continuous beam zero block reinforcement cage, and discharge holes in the lower ends of the hoppers are communicated with the upper part of the first tumbling barrel; and a second tumbling barrel is arranged on one side of each first tumbling barrel. The first tumbling barrel, the second tumbling barrel, the hopper and the third tumbling barrel are arranged according to different types of zero blocks and pouring requirements, the second tumbling barrel is arranged according to the working radius of the tamper, the tamper is marked, the concrete insertion depth is determined with the height of the second tumbling barrel as a reference, and the height of the tumbling barrels is integrally increased after lower layer pouring is completed. The height from a discharging hole of the tumbling barrel to a concrete pouring surface is ensured; the number of constructors can be reduced, and the construction efficiency and the concrete pouring and pounding quality can be improved.

Description

Technical Field

[0001] This utility model relates to the field of hanging basket construction technology, and in particular to a construction device for increasing the density of concrete in the zero block of a continuous beam. Background Technology

[0002] The zero block is a critical load-bearing component of the entire bridge, and its concrete pouring is a key control project in the construction of the bridge's superstructure. The zero block of the prestressed concrete box girder has a relatively high cross-sectional dimension and dense reinforcement, but the area available for equipment placement on the top surface of the zero block is small, and the dense reinforcement makes it difficult to ensure proper tamping with a tamping rod. How to solve the problem of continuous horizontal layering during the pouring of the zero block concrete, ensuring that a 10m pouring height does not cause concrete segregation, and how to ensure dense tamping of the concrete within the dense reinforcement, while improving work efficiency and guaranteeing the quality of concrete construction, are the technical challenges of pouring the zero block.

[0003] The success or failure of the zero-block concrete pouring is closely related to the concrete placement and tamping methods. In the past, the zero-block pouring of high-pier bridges generally involved repeatedly dismantling and moving pump pipes to deliver concrete, with tamping done by placing a tamping rod under the top of the reinforcing steel. This construction method makes it difficult for construction workers to guarantee the quality of concrete tamping, and the workload and labor intensity of dismantling and moving pump pipes are relatively large, posing significant hidden dangers. Therefore, it is not conducive to ensuring the bonding quality and density between layers during the pouring process.

[0004] Therefore, it is necessary to develop a construction device to increase the density of concrete in the zero block of a continuous beam to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to design a construction device to increase the density of concrete in the zero block of a continuous beam in order to solve the above problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A construction device for increasing the concrete density of the zero block of a continuous beam, comprising:

[0008] Multiple first-stage tubes; the multiple first-stage tubes are divided into two parallel rows and are set on both sides along the length of the zero block of the continuous beam. The first-stage tubes are vertically embedded and tied in the steel cage of the zero block of the continuous beam; the bottom of the first-stage tube is no more than 1.5 meters away from the concrete surface.

[0009] Multiple hoppers; multiple hoppers are set above the zero block reinforcement cage of the continuous beam, and the lower end of the hopper is connected to the upper part of the first cassette.

[0010] Multiple second-stage tubes are used to lower the tamping device; a second-stage tube is set on one side of each first-stage tube, and the second-stage tubes are vertically embedded and tied in the steel reinforcement cage of the zero block of the continuous beam.

[0011] The beneficial effects of this utility model are as follows:

[0012] This utility model sets up a first tremie pipe, a second tremie pipe, a hopper, and a third tremie pipe according to different types of zero blocks and pouring requirements. The second tremie pipe is arranged according to the working radius of the tamping device. The insertion depth into the concrete is determined by marking the tamping device and using the height of the second tremie pipe as a reference. After the lower layer is poured, the overall height of the tremie pipe is raised to ensure the height of the tremie pipe outlet from the concrete pouring surface. Using this application can reduce the number of construction personnel and is conducive to improving construction efficiency and the quality of concrete pouring and tamping. Attached Figure Description

[0013] Figure 1 A cross-sectional view of this application Figure 1 ;

[0014] Figure 2 A cross-sectional view of this application Figure 2 ;

[0015] Figure 3 for Figure 2 Enlarged diagram of section C;

[0016] Figure 4 This is a top view of this application.

[0017] Legend: 1-First spool; 2-Second spool; 3-Hopper; 4-Corrugated pipe; 5-Third spool. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, a construction device for increasing the concrete density of the zero block of a continuous beam includes:

[0026] Multiple first-string tubes 1; the multiple first-string tubes 1 are divided into two parallel rows and are set on both sides along the length direction of the zero block of the continuous beam. The first-string tubes 1 are vertically embedded and tied in the steel cage of the zero block of the continuous beam. The bottom of the first-string tube 1 is no more than 1.5 meters away from the concrete surface.

[0027] Multiple hoppers 3; Multiple hoppers 3 are set above the steel reinforcement cage of the zero block of the continuous beam, and the lower end of the discharge port of the hopper 3 is connected to the upper part of the first cassette 1;

[0028] Multiple second truss tubes 2 are used to lower the tamping device; a second truss tube 2 is set on one side of each first truss tube 1, and the second truss tube 2 is vertically embedded and tied in the steel cage of the zero block of the continuous beam.

[0029] Multiple second-stage steel reinforcement cages are also vertically embedded and tied on both sides of the support reinforcement cage of the continuous beam No. 0 block.

[0030] In some embodiments, multiple third ducts 5 are vertically embedded and tied near the center of the reinforcement cage of the zero block of the continuous beam. The upper end of the third duct 5 is also connected to a hopper 3, and the bottom of the third duct 5 is no more than 1.5 meters away from the concrete surface.

[0031] In some embodiments, the diameter of the first string tube 1 is 150 mm, the diameter of the second string tube 2 is 100 mm, and the diameter of the third string tube 5 is 150 mm.

[0032] In some embodiments, the spacing between two adjacent first truss tubes 1 along the length direction of the zero block of the continuous beam is 2750 mm.

[0033] In some embodiments, the distance between adjacent first drum 1 and second drum 2 is 269 mm.

[0034] In some embodiments, the first shunt 1, the second shunt 2, and the third shunt 5 are all PE pipes, pre-embedded during the binding of the reinforcement of the zero block of the continuous beam. The first shunt 1 and the third shunt 5 are used to transport concrete, prevent concrete segregation, and facilitate concrete placement. The second shunt 2 is used to transport the vibrator, preventing the vibrator from being unable to penetrate the concrete for tamping due to dense reinforcement. The hopper 3 is installed during concrete pouring, preventing concrete overflow and ensuring that overflowing concrete sets behind the top layer of reinforcement. In this application, concrete is placed into the hopper 3, and the concrete is transported to the area to be poured along the first shunt 1 or the second shunt 2. The vibrator is fed into the pouring area from top to bottom along the second shunt 2, directly acting on the pouring area to facilitate concrete tamping and improve the transport of concrete in the first shunt 1. The third shunt 5 is used for transporting and pouring concrete in the transverse concrete of the zero block of the continuous beam and in areas with dense reinforcement.

[0035] like Figure 3 As shown, this is an enlarged schematic diagram of part C. During the construction of the corrugated pipe 4 and the second tremie pipe 2, the corrugated pipe 4 that is in conflict is temporarily adjusted. After the second tremie pipe 2 is pulled out, it is restored. At the same time, attention should be paid to adjusting the positioning steel bars of the corrugated pipe 4 at the corresponding positions. The steel bars are most dense at the support of the zero block. When the steel bars are tied, a passage for the tamping personnel is reserved. After the tamping is completed, the steel bars are restored.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A construction device for increasing the concrete density of a zero block of a continuous beam, characterized by, include: Multiple first-stage tubes; the multiple first-stage tubes are divided into two parallel rows and are set on both sides along the length of the zero block of the continuous beam. The first-stage tubes are vertically embedded and tied in the steel cage of the zero block of the continuous beam; the bottom of the first-stage tube is no more than 1.5 meters away from the concrete surface. Multiple hoppers; multiple hoppers are set above the zero block reinforcement cage of the continuous beam, and the lower end of the hopper is connected to the upper part of the first cassette. Multiple second-stage tubes are used to lower the tamping device; a second-stage tube is set on one side of each first-stage tube, and the second-stage tubes are vertically embedded and tied in the steel reinforcement cage of the zero block of the continuous beam.

2. The construction device for increasing the compactness of the concrete of the zero block of the continuous beam according to claim 1, characterized in that, Multiple second-strand steel bars are also vertically embedded and tied to the support steel cages on both sides of the zero block of the continuous beam.

3. The construction device for increasing the compactness of the concrete of the zero block of the continuous beam according to claim 1, characterized in that, Several third-stage tubes are vertically embedded and tied near the center of the reinforcement cage of the zero block of the continuous beam. The upper end of the third-stage tube is also connected to a hopper. The bottom of the third-stage tube is no more than 1.5 meters away from the concrete surface.

4. The construction device for increasing the compactness of the concrete of the zero block of the continuous beam according to claim 3, characterized in that, The diameter of the first drum is 150mm, the diameter of the second drum is 100mm, and the diameter of the third drum is 150mm.

5. The device for increasing the compactness of the concrete of the zero block of a continuous beam according to claim 3, characterized in that, The distance between two adjacent first truss tubes along the length of the zero block of the continuous beam is 2750mm.

6. The device for increasing the density of the concrete of the zero block of the continuous beam according to claim 1, characterized in that, The distance between the adjacent first and second drums is 269mm.

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