Prefabricated pi-shaped beam binding mould

Abstract

The utility model belongs to the field of bridge construction, and particularly relates to a prefabricated pi-shaped beam binding mould which comprises a plurality of supporting frames arranged at intervals, comb plates symmetrically installed on the supporting frames, a first bottom clamp and a second bottom clamp. The supporting frame comprises an upper supporting rod, a fixed cylinder vertical rod, a lower supporting rod and a middle supporting rod which are symmetrically arranged; a plurality of insertion barrels are horizontally fixed to the positions, corresponding to the longitudinal bars, of the fixed barrel vertical rods, and insertion rods are inserted into the insertion barrels in a sliding mode; a comb plate is fixed on the upper supporting rod; a first bottom clamp and a second bottom clamp are mounted on the lower supporting rod; according to the utility model, effective supporting and accurate positioning can be simultaneously realized on top plate steel bars, web steel bars and part of longitudinal bars of the prefabricated pi-shaped beam steel bar framework; the binding device is simple in structural design, easy to manufacture, firm, durable and capable of being used for binding operation of the prefabricated pi-shaped beam reinforcement cage for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a prefabricated π beam binding jig. Background Art

[0002] Prefabricated π beams are prefabricated in a dedicated manufacturing facility and then transported to the construction site for installation. Prefabricated π beams are wide and heavy, requiring a correspondingly sized frame to assist in positioning the internal reinforcement skeleton structure. The prefabricated π beam reinforcement skeleton generally includes top plate reinforcement, web reinforcement, longitudinal reinforcement, and stirrups. Patent CN216782230U discloses a prefabricated π beam reinforcement binding frame, which can only position the web reinforcement and longitudinal reinforcement and cannot effectively support and position the top plate reinforcement of the prefabricated π beam reinforcement skeleton.

[0003] Therefore, it is necessary to provide an improved technical solution to the above-mentioned deficiencies in the prior art. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a prefabricated π beam binding jig.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A prefabricated π-beam lashing jig comprises a plurality of spaced support frames, and comb plates, a first bottom fixture, and a second bottom fixture symmetrically mounted on the support frames. The support frames comprise symmetrically arranged upper struts, fixed tube vertical rods, lower struts, and middle struts. The upper struts conform to the shape of the upper portions of the prefabricated π-beam side beams, the fixed tube vertical rods are fixed to the bottom ends of the upper struts, the lower struts correspond to the bottom surface of the prefabricated π-beam, and the middle struts correspond to the bottom surface of the middle beam of the prefabricated π-beam.

[0007] A number of inserts are horizontally fixed on the fixed vertical rod corresponding to the longitudinal reinforcement positions, and an insert rod is slidably inserted in the insert; a comb plate is fixed on the upper support rod, and the comb plate is used to position the top plate steel bars of the prefabricated π beam steel frame, and the comb plate is provided with a number of first sockets for accommodating and positioning the top plate steel bars of the prefabricated π beam steel frame; a first bottom clamp and a second bottom clamp are installed on the lower support rod, and the first bottom clamp and the second bottom clamp are provided with a number of second sockets for accommodating and positioning the bottom of the web steel bars of the prefabricated π beam steel frame.

[0008] Furthermore, a side clamp is provided on the inner side of the fixed tube vertical rod, and a plurality of third sockets are opened on the side clamp for accommodating and positioning the bottom of the web steel bars of the prefabricated π beam steel bar skeleton; the positions of the second socket and the third socket correspond to each other, the first bottom clamp and the second bottom clamp support and position the bottom of the web steel bars of the prefabricated π beam steel bar skeleton from the bottom, and the side clamp positions the side of the web steel bars of the prefabricated π beam steel bar skeleton, and the three work together to achieve stable support and precise positioning of the web steel bars of the prefabricated π beam steel bar skeleton.

[0009] Furthermore, the support frame also includes a bottom rod, the bottom ends of the two vertical rods are fixed on the bottom rod, the middle support rod is fixed to the bottom rod through the middle vertical rod, and the upper support rod, middle support rod and lower support rod are connected into one through the bottom rod, thereby improving stability and facilitating the assembly of the utility model.

[0010] In one embodiment, one end of the lower support rod is fixed to the fixed cylinder vertical rod, and the other end of the lower support rod is fixed to the bottom rod through the first vertical rod.

[0011] In another embodiment, a second vertical rod with a bottom surface flush with the first vertical rod is installed on the side of the upper support rod; one end of the lower support rod is fixed to the side of the bottom rod through the first vertical rod, the other end of the lower support rod is fixed to the second vertical rod, and the middle part of the lower support rod is installed on the side of the fixed tube vertical rod.

[0012] Furthermore, a plurality of positioning columns are vertically fixed on the upper support rod, and a positioning cylinder is detachably sleeved on the positioning column.

[0013] Furthermore, a positioning plate is fixed on the upper end surface of at least one side of the upper support rod, and the positioning plate is located on the outside of the comb plates on both sides. When in use, one side of the top plate steel bars of the prefabricated π beam steel frame is placed against the positioning plate to facilitate alignment.

[0014] Furthermore, the top surface of the steel bars of the top plate of the prefabricated π-beam steel frame is positioned not to exceed the top opening position of the first socket of the comb plate.

[0015] Furthermore, the support frames are spaced 1.5m-2.0m apart, the lengths of the comb plates, the first bottom fixture and the second bottom fixture are 1m-3m, and the total length of the prefabricated π beam tying jig is 10m-13m.

[0016] Furthermore, the comb plate is an L-shaped plate, and a plurality of reinforcing plates are fixed on the back side of the comb plate.

[0017] The beneficial effects of the utility model are:

[0018] The utility model can simultaneously realize effective support and accurate positioning of the top plate steel bars, web steel bars and part of the longitudinal bars of the prefabricated π beam reinforcement skeleton; and the structure design of the utility model is simple and easy to manufacture, firm and durable, and can be used for the binding operation of the prefabricated π beam reinforcement skeleton for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of this application are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention.

[0020] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model.

[0021] Figure 2 It is a side view schematic diagram of an embodiment of the utility model.

[0022] Figure 3 This is a schematic diagram of the assembly of the comb plate and the support frame according to an embodiment of the present utility model.

[0023] Figure 4 This is a schematic structural diagram of a support frame according to a first embodiment of the present invention.

[0024] Figure 5 This is a schematic structural diagram of a support frame according to another embodiment of the present invention.

[0025] In the figure: 1. bottom rod; 2. upper support rod; 21. fixed tube vertical rod; 3. middle support rod; 31. middle vertical rod; 4. lower support rod; 41. first vertical rod; 42. second vertical rod; 5. comb plate; 6. positioning plate; 7. side clamp; 8. first bottom clamp; 9. second bottom clamp; 10. insert tube; 11. insert rod; 12. positioning column. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0027] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0029] like Figures 1 to 5 As shown, a prefabricated π-beam lashing jig includes a plurality of spaced support frames and comb plates 5, a first bottom fixture 8, and a second bottom fixture 9 symmetrically mounted on the support frames. The support frames include symmetrically arranged upper support rods 2, fixed tube vertical rods 21, lower support rods 4, and middle support rods 3. The upper support rods 2 are adapted to the shape of the upper portion of the prefabricated π-beam side beams. The fixed tube vertical rods 21 are fixed to the bottom ends of the upper support rods 2. The lower support rods 4 are arranged corresponding to the bottom surface of the prefabricated π-beam, and the middle support rods 3 are arranged corresponding to the bottom surface of the middle beam of the prefabricated π-beam.

[0030] A plurality of inserts 10 are horizontally fixed on the fixed tube vertical rod 21 at the corresponding longitudinal reinforcement positions. The inserts 10 are arranged according to the designed spacing of the longitudinal reinforcement at this location to support the longitudinal reinforcement at the web position; an insert rod 11 is slidably inserted into the inserts 10; the inserts 10 are welded to the fixed tube vertical rod 21, and the opposite ends of the inserts 10 do not exceed the opposite surfaces of the fixed tube vertical rod 21; after the binding is completed, the insert rod 11 in the inserts 10 is pulled out to facilitate the overall lifting of the bound prefabricated π beam reinforcement skeleton;

[0031] A comb plate 5 is fixed on the upper support rod 2, and the comb plate 5 is used to position the top plate steel bars of the prefabricated π beam steel frame. The comb plate 5 is provided with a plurality of first sockets for accommodating and positioning the top plate steel bars of the prefabricated π beam steel frame; the lower support rod 4 is installed with a first bottom clamp 8 and a second bottom clamp 9, and the first bottom clamp 8 and the second bottom clamp 9 are provided with a plurality of second sockets for accommodating and positioning the bottom of the web steel bars of the prefabricated π beam steel frame.

[0032] Further, such as Figures 1 to 3As shown, a side clamp 7 is also provided on the inner side of the fixed tube vertical rod 21, and a plurality of third sockets are opened on the side clamp 7 for accommodating and positioning the bottom of the web steel bars of the prefabricated π beam steel bar skeleton; the positions of the second socket and the third socket correspond to each other, the first bottom clamp 8 and the second bottom clamp 9 support and position the bottom of the web steel bars of the prefabricated π beam steel bar skeleton from the bottom, and the side clamp 7 positions the side of the web steel bars of the prefabricated π beam steel bar skeleton, and the three work together to achieve stable support and precise positioning of the web steel bars of the prefabricated π beam steel bar skeleton.

[0033] Furthermore, the support frame also includes a bottom rod 1, the bottom ends of the two vertical rods are fixed on the bottom rod 1, the middle support rod 3 is fixed on the bottom rod 1 through the middle vertical rod 31, and the upper support rod 2, the middle support rod 3 and the lower support rod 4 are connected into one through the bottom rod 1, thereby improving stability and facilitating the assembly of the present invention.

[0034] In one embodiment, Figure 4 As shown, one end of the lower support rod 4 is fixed on the fixed tube vertical rod 21, and the bottom surface of the upper support rod 2 is installed with a second vertical rod 42 whose bottom surface is flush with the first vertical rod 41. The other end of the lower support rod 4 is fixed to the bottom rod 1 through the first vertical rod 41, that is, each support frame is placed on the ground through the second vertical rod 42 and the bottom rod 1; the support frame in this embodiment uses less material.

[0035] In another embodiment, Figure 5 As shown, the side of the upper support rod 2 is installed with a second vertical rod 42 whose bottom surface is flush with the first vertical rod 41; one end of the lower support rod 4 is fixed to the side of the bottom rod 1 through the first vertical rod 41, and the other end of the lower support rod 4 is fixed to the second vertical rod 42. The middle part of the lower support rod 4 is installed on the side of the fixed tube vertical rod 21, that is, each support frame is placed on the ground through the first vertical rod 41, the second vertical rod 42, and the bottom rod 1, and the first vertical rod 41, the second vertical rod 42 and the bottom rod 1 are arranged in two rows, which increases the supporting area of ​​the support frame. In addition, the lower support rod 4 is jointly supported by the first vertical rod 41, the second vertical rod 42 and the middle vertical rod 31, so that the lower support rod 4 is not easily deformed after long-term use.

[0036] Further, such as Figure 1 As shown, a number of positioning columns 12 are vertically fixed on the upper support rod 2, and a detachable positioning cylinder is provided on the positioning column 12; when in use, the top plate steel bars are first positioned on the binding jig, and then the longitudinal bars in the top plate steel bars are positioned. In order to facilitate the horizontal movement of the longitudinal bars in the top plate steel bars, these longitudinal bars are placed in the corresponding positions, and then the positioning cylinder is put on the positioning column 12 to accurately position and bind the longitudinal bars. After the binding and fixing are completed, the positioning cylinder is removed to facilitate the final overall lifting of the bound prefabricated π beam steel bar skeleton.

[0037] Further, such as Figure 1 、 Figure 3 As shown, a positioning plate 6 is fixed on the upper end face of at least one side of the upper support rod 2, and the positioning plate 6 is located on the outside of the comb plates 5 on both sides. When in use, one side of the top plate steel bars of the prefabricated π beam steel frame is placed against the positioning plate 6 to facilitate the alignment of the top plate steel bars and maintain the linear shape.

[0038] Further, such as Figure 1 As shown, the top surface of the prefabricated π beam steel frame top plate steel bars does not exceed the top opening position of the first socket of the comb plate 5, so that the prefabricated π beam steel frame top plate steel bars are not skewed after being placed in the first socket.

[0039] Further, such as Figures 1 to 3 As shown, the comb plate 5 is an L-shaped plate, and a plurality of reinforcing plates are fixed on the back of the comb plate 5 , and the reinforcing plates are evenly distributed on the back of the comb plate 5 .

[0040] Furthermore, the support frames are spaced 1.5-2.0m apart, the comb plates 5, the first bottom fixture 8 and the second bottom fixture 9 are 1-3m long, and the total length of the prefabricated π beam binding jig is 10-13m. In a specific example, the upper support rod 2, the middle support rod 3, the lower support rod 4, the first vertical rod 41, the second vertical rod 42 and the middle vertical rod 31 are all made of channel steel, the first bottom fixture 8, the second bottom fixture 9 and the side fixture 7 are all made of angle steel; the insert 10 is 20-25mm long, the insert rod 11 is round steel, the positioning column 12 is a steel bar with a height of 20-80mm, and the positioning cylinder is a cylinder with a length of 100-150mm; the total length of the prefabricated π beam binding jig is 13m, as shown in FIG. Figure 2 The figure in the figure is a schematic diagram of the entire prefabricated π beam lashing jig. A single comb plate 5, a first bottom fixture 8, a second bottom fixture 9, and a side fixture 7 are supported by multiple support frames and then docked together to form the entire prefabricated π beam lashing jig. The entire comb plate 5 is also assembled from multiple comb plates 5. The entire comb plate 5 includes four 3m comb plates, two 1.05m comb plates, and four 2.98m comb plates. The comb plates 5 are 180mm high, 110mm wide, and 10mm thick. Figure 3 The figure in the middle is a schematic diagram of the installation of a 3m comb plate; the depth of the first socket of the comb plate 5 is 153mm, the width of the first socket is 18mm, and the spacing between the center lines of two adjacent first sockets is 150mm; similar first fixtures, second fixtures and side fixtures 7 are also assembled from multiple shorter fixtures; the depth of the second socket and the third socket is 27.5-28mm, and the spacing between the center lines of two adjacent second sockets / third sockets is 113mm.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A prefabricated π-beam lashing jig, characterized by: The invention comprises a plurality of support frames arranged at intervals and comb plates (5), a first bottom fixture (8) and a second bottom fixture (9) symmetrically mounted on the support frames; the support frames comprise an upper support rod (2), a fixed tube vertical rod (21), a lower support rod (4) and a middle support rod (3) symmetrically arranged, the upper support rod (2) being adapted to the shape of the upper portion of the prefabricated π beam side beam, the fixed tube vertical rod (21) being fixed to the bottom end of the upper support rod (2), the lower support rod (4) being arranged corresponding to the bottom surface of the prefabricated π beam, and the middle support rod (3) being arranged corresponding to the bottom surface of the middle beam of the prefabricated π beam; A plurality of inserts (10) are horizontally fixed on the fixed tube vertical rod (21) at positions corresponding to the longitudinal reinforcements, and an insert rod (11) is slidably inserted into the inserts (10); a comb plate (5) is fixed on the upper support rod (2), and the comb plate (5) is used to position the top plate reinforcement of the prefabricated π beam reinforcement skeleton, and the comb plate (5) is provided with a plurality of first sockets for accommodating and positioning the top plate reinforcement of the prefabricated π beam reinforcement skeleton; a first bottom fixture (8) and a second bottom fixture (9) are installed on the lower support rod (4), and the first bottom fixture (8) and the second bottom fixture (9) are provided with a plurality of second sockets for accommodating and positioning the bottom of the web reinforcement of the prefabricated π beam reinforcement skeleton.

2. The prefabricated π-beam lashing jig according to claim 1, characterized in that: A side clamp (7) is also provided on the inner side of the fixed tube vertical rod (21), and a plurality of third sockets for accommodating and positioning the bottom of the web steel bars of the prefabricated π beam steel bar skeleton are provided on the side clamp (7).

3. The prefabricated π-beam lashing jig according to claim 1, characterized in that: The support frame further comprises a bottom rod (1), the bottom ends of the two vertical rods are fixed on the bottom rod (1), and the middle support rod (3) is fixed on the bottom rod (1) via the middle vertical rod (31).

4. The prefabricated π-beam lashing jig according to claim 3, characterized in that: The bottom surface of the upper support rod (2) is provided with a second vertical rod (42) whose bottom surface is flush with the bottom surface of the bottom rod (1); one end of the lower support rod (4) is fixed to the fixed cylinder vertical rod (21); and the other end of the lower support rod (4) is fixed to the bottom rod (1) via the first vertical rod (41).

5. The prefabricated π-beam lashing jig according to claim 3, characterized in that: A second vertical rod (42) whose bottom surface is flush with the bottom surface of the bottom rod (1) is installed on the side of the upper support rod (2); one end of the lower support rod (4) is fixed to the side of the bottom rod (1) through the first vertical rod (41), and the other end of the lower support rod (4) is fixed to the second vertical rod (42); the middle part of the lower support rod (4) is installed on the side of the fixed tube vertical rod (21).

6. The prefabricated π-beam lashing jig according to claim 1, characterized in that: A plurality of positioning columns (12) are vertically fixed on the upper support rod (2), and a positioning cylinder is detachably sleeved on the positioning column (12).

7. The prefabricated π-beam lashing jig according to claim 1, characterized in that: A positioning plate (6) is fixed on the upper end surface of at least one side of the upper support rod (2), and the positioning plate (6) is located outside the comb plates (5) on both sides.

8. The prefabricated π-beam lashing jig according to claim 1, characterized in that: The top end surface of the steel bars of the top plate of the positioning prefabricated π beam steel bar skeleton does not exceed the top end opening position of the first socket of the comb plate (5).

9. The prefabricated π-beam tying jig according to claim 1, characterized in that: The support frames are spaced 1.5m-2.0m apart, the comb plate (5), the first bottom fixture (8) and the second bottom fixture (9) are 1m-3m long, and the total length of the prefabricated π beam tying jig is 10m-13m.

10. The prefabricated π-beam lashing jig according to claim 1, characterized in that: The comb plate (5) is an L-shaped plate, and a plurality of reinforcing plates are fixed on the back side of the comb plate (5).

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