Steel bar positioning and reinforcing device of cast-in-place box girder bridge

Abstract

The utility model discloses a steel bar positioning and reinforcing device of a cast-in-place box girder bridge, and belongs to the technical field of buildings. The fixed bottom plate is provided with hydraulic opening and closing equipment; the template bottom shell is fixedly mounted on one side of the fixed bottom plate; the lifting plate is a hydraulic cylinder which is embedded in a wedging groove of the template bottom shell in a symmetrical structure, and is fixedly connected to one side of the fixed bottom plate in a linear equidistant structure; the material injection pressing plate is clamped and mounted outside the template bottom shell through a lock catch structure; the reinforcing steel bars are embedded in the wedging groove of the template bottom shell in a linear equal-interval structure; and the lifting columns are used for placing reinforcing steel bars and are inserted into the reinforcing steel bar hole grooves. According to the device, a formwork structure can be formed by clamping and installing the formwork bottom shell and the injection pressing plate, pouring forming use of a box girder is achieved, a box girder component formed in the formwork bottom shell is demolded from the formwork bottom shell under lifting of the hydraulic cylinder, and therefore the convenience of the device for pouring forming use of the box girder component is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building, more particularly, to a reinforcing steel bar positioning and reinforcing device for a cast-in-place box girder bridge. BACKGROUND

[0002] The cross section shape of the box-shaped precast beam is the same as that of a general box section, so it is called a box beam, which is generally composed of a cover plate, a web plate, a bottom plate and a partition plate, and its material is steel and prestressed reinforced concrete. It is mainly used for large-span or load-bearing structures. When manufacturing the box-shaped precast beam, multiple groups of steel bars are combined to form a steel skeleton, and then concrete is poured on the steel skeleton to manufacture the box-shaped precast beam.

[0003] The prior art document with publication (announcement) number CN215482334U provides a reinforcing steel bar positioning device for a cast-in-place box girder sliding form, which has the purpose of being spaced at equal intervals by setting the positioning groove, the first auxiliary groove and the second auxiliary groove, placing the main steel bar in the positioning groove to make it be spaced at equal intervals, placing the connecting steel bar in the first auxiliary groove and the second auxiliary groove to make the connecting steel bar be spaced at equal intervals, so that the worker does not need to draw lines on the main steel bar, thereby improving the efficiency of box girder steel bar binding.

[0004] The prior art scheme in the above has the following defects although the structure of the prior art can achieve the beneficial effects related thereto: the device only has the effect of bundling the steel bar frame and cannot realize the pouring and demolding functions.

[0005] In view of this, the present application provides a reinforcing steel bar positioning and reinforcing device for a cast-in-place box girder bridge. CONTENT OF THE UTILITY MODEL

[0006] In order to improve the problems in the above background art, the present application provides a reinforcing steel bar positioning and reinforcing device for a cast-in-place box girder bridge,

[0007] The reinforcing steel bar positioning and reinforcing device for a cast-in-place box girder bridge provided by the present application adopts the following technical scheme:

[0008] The reinforcing steel bar positioning and reinforcing device for a cast-in-place box girder bridge comprises:

[0009] A fixed bottom plate provided with a hydraulic opening and closing device;

[0010] A formwork bottom shell provided with a plurality of fitting grooves and fixedly installed on one side of the fixed bottom plate;

[0011] A lifting plate symmetrically embedded in the fitting grooves of the formwork bottom shell;

[0012] A hydraulic cylinder linearly and equally spacedly fixedly connected on one side of the fixed bottom plate and penetrating through the formwork bottom shell and the fixed bottom plate provided with the hydraulic opening and closing device to be fixedly connected;

[0013] The injection pressure plate is clamped and installed outside the mold base through a lock catch structure;

[0014] The reinforcing steel bar is embedded in the matching groove of the mold base in a linear and equidistant structure.

[0015] The lifting column for placing the steel bar is inserted and installed in the hole slot of the reinforcing steel bar.

[0016] By adopting the above technical scheme, the mold structure can be formed by clamping and installing the mold base and the injection pressure plate, the box girder component formed inside the mold base is demolded from the mold base under the lifting of the hydraulic cylinder, thereby improving the convenience of the device for pouring and forming the box girder component, and the reinforcing steel bar can wrap and reinforce the outside of the poured and formed steel-concrete box girder component, further improving the strength of the steel-concrete box girder component.

[0017] As an optional scheme of the technical scheme of the present application file, a plurality of vibration motors are fixedly connected outside the injection pressure plate.

[0018] By adopting the above technical scheme, the vibration motor can be used to sieve the concrete poured in the mold base, improve the tightness of the steel-concrete box girder component, and ensure the convenience of the device for forming use.

[0019] As an optional scheme of the technical scheme of the present application file, through holes are formed at both ends of the reinforcing steel bar, and sealing plugs are embedded in the through holes.

[0020] By adopting the above technical scheme, the through holes at both ends of the reinforcing steel bar can be used to insert and install the top steel bar component of the box girder component, so that the reinforcing steel bar can be tightly connected with the box girder component of the steel-concrete structure, and the strength connection of the reinforcing steel bar is ensured.

[0021] As an optional scheme of the technical scheme of the present application file, the lifting column includes a plug-in square column, a steel bar column is fixedly welded at one end of the plug-in square column, a plurality of steel bars are fixedly welded outside the steel bar column, and the steel bars are formed by bending two steel bars with different lengths.

[0022] By adopting the above technical scheme, the steel bars formed by bending two steel bars with different lengths can be cross-placed for the steel bar framework for fabricating the box girder, improving the convenience of the steel bar framework installation, and the steel bar column can be stably inserted and limited in the reinforcing steel bar under the action of the plug-in square column, ensuring the convenience of the weaving use between the lifting column and the steel bar.

[0023] As an optional scheme of the technical scheme of the present application file, two through holes are formed outside the steel bar column, and the through holes are arranged in a degree structure with the steel bars.

[0024] By adopting the technical scheme, the through hole can be used to insert and fasten a wire according to the use requirement, the placed steel bar is connected and fixed with the lifting column, and the stability of the steel framework is improved.

[0025] To sum up, the present application has at least one of the following beneficial technical effects:

[0026] 1. The present application can form a formwork structure by using the formwork bottom shell and the injection pressure plate clamping installation, realize the pouring and forming of the box girder, the box girder component formed in the formwork bottom shell is demolded from the formwork bottom shell under the lifting of the hydraulic cylinder, thereby improving the convenience of the device for pouring and forming the box girder component, and the reinforcing steel bar can wrap and reinforce the outside of the poured and formed steel-concrete box girder component, further improving the strength of the steel-concrete box girder component.

[0027] 2. The present application can cross place the steel reinforcement framework for weaving the box girder by using two steel bars of different lengths, improve the convenience of the steel reinforcement framework installation, and the steel column can be stably inserted into the reinforcing steel bar under the action of the insertion square column, and the convenience of weaving between the lifting column and the steel bar is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The overall structure schematic diagram of the steel reinforcement positioning and reinforcing device of the cast-in-place box girder bridge is disclosed for a preferred embodiment of the present application;

[0029] Figure 2 The reinforcing steel bar structure schematic diagram of the steel reinforcement positioning and reinforcing device of the cast-in-place box girder bridge is disclosed for a preferred embodiment of the present application;

[0030] Figure 3 The lifting column structure schematic diagram of the steel reinforcement positioning and reinforcing device of the cast-in-place box girder bridge is disclosed for a preferred embodiment of the present application;

[0031] Explanation of reference numerals in the drawing: 1, fixed bottom plate; 2, formwork bottom shell; 3, lifting plate; 4, hydraulic cylinder; 5, injection pressure plate; 6, reinforcing steel bar; 7, lifting column; 51, vibration motor; 61, through hole; 71, insertion square column; 72, steel column; 73, steel bar; 74, through hole. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below in conjunction with the drawings of the specification.

[0033] Reference Figures 1-3 The steel reinforcement positioning and reinforcing device of the cast-in-place box girder bridge according to the embodiment of the present application comprises:

[0034] A fixed bottom plate 1 provided with a hydraulic opening and closing device;

[0035] The template bottom shell 2 with multiple fitting grooves is fixedly installed on one side of the fixed bottom plate 1;

[0036] The lifting plate 3 is embedded in the fitting groove of the template bottom shell 2 in a symmetrical structure;

[0037] The hydraulic cylinder 4 is fixedly connected on one side of the fixed bottom plate 1 in a linear and equidistant structure, and penetrates the template bottom shell 2 and is connected with the fixed bottom plate 1 on which the hydraulic opening and closing device is installed;

[0038] The pouring pressure plate 5 is clamped and installed outside the template bottom shell 2 through a lock buckle structure;

[0039] The reinforcing steel bar 6 is embedded in the fitting groove of the template bottom shell 2 in a linear and equidistant structure;

[0040] The lifting column 7 for placing the steel bar is inserted and installed in the hole groove of the reinforcing steel bar 6.

[0041] The steel bar positioning and reinforcing device for the cast-in-place box girder bridge can form a formwork structure by clamping and installing the template bottom shell 2 and the pouring pressure plate 5, realize the use of pouring and forming the box girder, and the box girder component formed in the template bottom shell 2 is demolded from the template bottom shell 2 under the lifting of the hydraulic cylinder 4, thereby improving the convenience of the device for pouring and forming the box girder component, and the reinforcing steel bar 6 can wrap and reinforce the outside of the poured and formed steel-concrete box girder component, further improving the strength of the steel-concrete box girder component.

[0042] Referring to Figure 1 The pouring pressure plate 5 is fixedly connected outside the pouring pressure plate 5 in the steel bar positioning and reinforcing device for the cast-in-place box girder bridge according to the embodiments of the present application.

[0043] The steel bar positioning and reinforcing device for the cast-in-place box girder bridge can vibrate and sieve the concrete poured in the template bottom shell 2 through the vibration motor 51, improve the tightness of the steel-concrete box girder component, and guarantee the convenience of the device for forming and using.

[0044] Referring to Figure 2 and Figure 1 The through holes 61 are formed at both ends of the reinforcing steel bar 6 in the steel bar positioning and reinforcing device for the cast-in-place box girder bridge according to the embodiments of the present application, and the sealing plugs are embedded in the through holes 61.

[0045] The steel bar positioning and reinforcing device for the cast-in-place box girder bridge, through the through holes 61 at both ends of the reinforcing steel bar 6, can be used for inserting and installing the top steel bar component of the box girder component, so that the reinforcing steel bar 6 can be tightly connected with the box girder component of the steel-concrete structure, and the strength connection of the reinforcing steel bar 6 is guaranteed.

[0046] Referring to Figure 3 and Figure 1The present application embodiment of the cast-in-place box girder bridge reinforcing positioning device, the lifting column 7 comprises a plug-in square column 71, one end of the plug-in square column 71 is fixedly welded with a reinforcing column 72, a plurality of reinforcing bars 73 are fixedly welded outside the reinforcing column 72, the reinforcing bars 73 are formed by bending two reinforcing bars with different lengths, and two through holes 74 are formed outside the reinforcing column 72, and the through holes 74 are arranged at an angle of 45 degrees with the reinforcing bars 73.

[0047] The present application embodiment of the cast-in-place box girder bridge reinforcing positioning device, the lifting column 7 comprises a plug-in square column 71, one end of the plug-in square column 71 is fixedly welded with a reinforcing column 72, a plurality of reinforcing bars 73 are fixedly welded outside the reinforcing column 72, the reinforcing bars 73 are formed by bending two reinforcing bars with different lengths, and two through holes 74 are formed outside the reinforcing column 72, and the through holes 74 are arranged at an angle of 45 degrees with the reinforcing bars 73.

[0048] Working principle: when the box girder component is formed and manufactured by using the device, the operator embeds a plurality of reinforcing steel bars 6 into the fitting groove of the template bottom shell 2, and presses the lifting plate 3;

[0049] Then, the lifting column 7 is inserted into each hole groove of the reinforcing steel bar 6, the reinforcing steel bars of the woven box girder framework are cross-placed in the plurality of reinforcing bars 73, and according to the requirement, the reinforcing steel bars are connected and fixed with the lifting column 7 by inserting the wire through the through hole 74;

[0050] Finally, after the injection pressure plate 5 is clamped and closed with the template bottom shell 2, the concrete slurry is injected into the injection pressure plate 5, and the vibration motor 51 is started to vibrate;

[0051] When the internal steel-concrete component of the template bottom shell 2 is solidified, the hydraulic cylinder 4 is started to lift the solidified box girder component to separate from the template bottom shell 2, and the injection pressure plate 5 is removed, so that the manufacturing and demolding of the box girder component are completed.

Claims

1. A reinforcing bar positioning and reinforcing device for cast-in-place box girder bridges, characterized in that, Include: Fixed base plate (1) installed with hydraulic opening and closing equipment; The formwork bottom shell (2) is provided with a plurality of matching grooves and is fixedly installed on one side of the fixed base plate (1); The lifting plate (3) is symmetrically embedded in the matching groove of the formwork bottom shell (2); The hydraulic cylinder (4) is fixedly connected on one side of the fixed base plate (1) in a linear and equidistant structure, and penetrates the formwork bottom shell (2) and is connected with the fixed base plate (1) installed with hydraulic opening and closing equipment; The injection pressure plate (5) is clamped and installed outside the formwork bottom shell (2) through the lock catch structure; The reinforcing steel bar (6) is embedded in the matching groove of the formwork bottom shell (2) in a linear and equidistant structure; The lifting column (7) for placing steel bars is inserted and installed in the hole slot of the reinforcing steel bar (6).

2. The device for positioning and reinforcing the steel bars of a cast-in-place box girder bridge according to claim 1, characterized in that: A plurality of vibration motors (51) are fixedly connected outside the injection pressure plate (5).

3. The device for positioning and reinforcing the steel bars of a cast-in-place box girder bridge according to claim 1, characterized in that: Through holes (61) are formed at both ends of the reinforcing steel bar (6), and sealing plugs are embedded in the through holes (61).

4. The device for positioning and reinforcing the steel bars of a cast-in-place box girder bridge according to claim 1, characterized in that: The lifting column (7) includes a plug-in square column (71), one end of the plug-in square column (71) is fixedly welded with a steel column (72), a plurality of steel bars (73) are fixedly welded outside the steel column (72), and the steel bars (73) are formed by bending two steel bars with different lengths.

5. The device for positioning and reinforcing the steel bars of a cast-in-place box girder bridge according to claim 4, characterized in that: Two through holes (74) are formed outside the steel column (72), and the through holes (74) are arranged at an angle of 45 degrees with the steel bars (73).

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