Box girder mold disassembling and assembling tool

Abstract

The utility model discloses a box girder mould disassembling and assembling tool which comprises a toothed plate, the toothed plate is divided into a front toothed plate and a rear toothed plate, two side plates are arranged between the front toothed plate and the rear toothed plate to form a square shape, the front toothed plate, the rear toothed plate and the two side plates are all provided with a plurality of tensioning toothed holes, and the tensioning toothed holes are communicated with the front toothed plate and the rear toothed plate. The front toothed plate, the rear toothed plates and the two side plates are connected and assembled through bolts and dismounting heads, each rear toothed plate is provided with a plurality of anchorage device holes, the anchorage device holes are transversely and uniformly distributed, each anchorage device hole is square, and a pull-out plate is arranged in the middle of the upper end of each side plate; the square hogging moment hole dismounting and mounting tool formed by the front toothed plate, the rear toothed plate and the two side plates has supporting and positioning effects, and can effectively prevent potential quality hazards of box girders caused by concrete damage and inaccurate positions of anchorage devices and reinforcing steel bars in the construction process of construction hogging moment preformed holes.

Description

TECHNICAL FIELD

[0001] The utility model relates to precast box girder technical field especially relates to a box girder mould dismounting frock. BACKGROUND

[0002] In bridge engineering, precast box girder is widely used in various bridge constructions due to its high structural strength, fast construction speed, controllable quality and other advantages; in the construction process of precast box girder, tensioning operation is one of the key steps, which directly affects the bearing capacity and service life of the box girder; in order to ensure the smooth progress of tensioning operation, a negative bending moment reserved hole is usually reserved at a specific position of the box girder during construction to provide sufficient operation space for the tensioning equipment.

[0003] However, in the actual construction process, due to human operation error, equipment precision limitation and uncertainty of construction site environment, the positioning of anchorage device and steel bar is often difficult to achieve ideal precision, which may further cause problems such as anchorage device positioning deviation, steel bar positioning deviation, damage of beam body concrete and reduction of construction efficiency.

[0004] In order to solve the above problems and improve the construction quality and efficiency of precast box girder, a box girder mould dismounting frock is provided. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a kind of box girder mould dismounting frock, and the utility model is supported, positioned by the mouth-shaped negative bending moment hole dismounting frock formed by front tooth plate, rear tooth plate and two side plates, can effectively prevent construction negative bending moment reserved hole from causing concrete damage, anchorage device, steel bar position inaccuracy lead to quality hidden danger of box girder in construction process, to achieve the above utility model purposes, the technical scheme that the utility model adopts is as follows:

[0006] According to one aspect of the utility model, a box girder mould dismounting frock is provided, which includes a tooth plate. The tooth plate is divided into a front tooth plate and a rear tooth plate. Two side plates are arranged between the front tooth plate and the rear tooth plate, forming a mouth-shaped structure. A plurality of tensioning tooth holes are formed in the front tooth plate, the rear tooth plate, and the two side plates. The front tooth plate, the rear tooth plate, and the two side plates are connected and assembled by bolts and dismounting heads. A plurality of anchorage device holes are formed in each rear tooth plate, and the anchorage device holes are arranged horizontally and uniformly. Each anchorage device hole is square. A pull-out plate is arranged at the upper end of each side plate.

[0007] Preferably, a plurality of reserved holes are arranged in the front tooth plate and the rear tooth plate. Each reserved hole is a straight slot. The reserved holes in the rear tooth plate are located above the anchorage device holes.

[0008] Preferably, the front tooth plate is provided with an arc groove, an adjusting plate is arranged in the arc groove, the shape of the adjusting plate is matched with the profile of the arc groove, and the adjusting plate and the front tooth plate are detachably connected through a micro-connection structure, and the connection strength of the micro-connection structure is less than the overall structural strength between the front tooth plate and the adjusting plate.

[0009] Preferably, the micro-connection structure comprises at least one weak connection point, and the weak connection point realizes temporary fixing of the adjusting plate and the front tooth plate through a local welding cooperation mode.

[0010] Preferably, each side plate is shorter at one end close to the front tooth plate and longer at one end close to the rear tooth plate, so that the side plate is inclined.

[0011] As described above, due to the adoption of the above technical scheme, the beneficial effects of the utility model are as follows:

[0012] The box girder mold dismounting tool disclosed by the utility model forms a mouth-shaped negative bending moment hole dismounting tool through the front tooth plate, the rear tooth plate and the two side plates, has the effects of supporting and positioning, and can effectively prevent the quality hidden danger of the box girder caused by the concrete damage and the inaccurate position of the anchorage device and the steel bar in the construction process. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a three-dimensional structure schematic view of the utility model;

[0014] Fig. 2 is a structure schematic view of another embodiment of the utility model;

[0015] Fig. 3 is a structure schematic view of the utility model after the pull-out plate is installed;

[0016] In the drawings, 1 is a front tooth plate, 2 is a rear tooth plate, 3 is a side plate, 4 is a tension tooth hole, 5 is an anchorage device hole, 6 is a pull-out plate, 7 is a reserved hole, and 8 is an adjusting plate. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below with reference to the drawings and preferred embodiments. However, it should be noted that many details listed in the description are only for the reader to have a thorough understanding of one or more aspects of the utility model, and the aspects of the utility model can be realized even without these specific details.

[0018] Please refer to Figs. 1 to 3 The utility model provides a box girder mold dismounting tool, and the technical scheme is as follows:

[0019] The tooth plate comprises a front tooth plate 1 and a rear tooth plate 2, two side plates 3 are arranged between the front tooth plate 1 and the rear tooth plate 2, forming a mouth-shaped type, a plurality of tension tooth holes 4 are arranged on the front tooth plate 1, the rear tooth plate 2 and the two side plates 3, the front tooth plate 1, the rear tooth plate 2 and the two side plates 3 are connected and assembled by bolts and dismounting heads, a plurality of anchor holes 5 are arranged on each rear tooth plate 2, and the plurality of anchor holes 5 are arranged in a horizontal direction, each anchor hole 5 is square, and a pull-out plate 6 is arranged at the upper end of each side plate 3.

[0020] The existing anchor and steel bar positioning cannot achieve ideal accuracy, and there are uncertain disturbances of human and equipment, which may cause inaccurate positioning of the anchor and the steel bar and damage to the beam body concrete, affecting the quality and appearance of the box girder; the mouth-shaped negative bending moment hole dismounting tool formed by the front tooth plate 1, the rear tooth plate 2 and the two side plates 3 can effectively prevent the construction negative bending moment reserved hole 7 from being damaged due to the construction process, and the inaccurate position of the anchor and the steel bar causes the quality risk of the box girder;

[0021] In use, the plurality of tension tooth holes 4 cooperate with the plurality of steel bars to regularize the steel bars, the preset anchor holes 5 are matched with the anchors during construction, and modularity is formed; after pouring is completed, the two pull-out plates 6 are used to dismount the entire tooling, and modularity is formed; the modular design simplifies the construction process, facilitates rapid assembly and dismounting, significantly improves construction efficiency, and is suitable for various complex box girder construction environments.

[0022] The front tooth plate 1 and the rear tooth plate 2 are provided with a plurality of reserved holes 7, each reserved hole 7 is a straight slot, and the reserved holes 7 on the rear tooth plate 2 are located above the anchor holes 5; the reserved holes 7 are used for placing the corrugated pipes, the straight slot-shaped reserved holes 7 provide accurate placement positions for the corrugated pipes, construction personnel can accurately place the corrugated pipes in the reserved holes 7, avoiding the offset and shaking of the corrugated pipes during installation, improving the accuracy and efficiency of installation; the shape of the straight slot can guide the corrugated pipes to quickly realize axial centering, so that the position of the corrugated pipes on the tooth plate is more regular, which is beneficial to subsequent construction operations, such as beam penetration, tensioning and the like.

[0023] The front tooth plate 1 is provided with an arc groove, and an adjusting plate 8 is arranged in the arc groove, and the shape of the adjusting plate 8 matches the contour of the arc groove, and the adjusting plate 8 and the front tooth plate 1 are detachably connected through a micro-connection structure, and the connection strength of the micro-connection structure is less than the overall structural strength between the front tooth plate 1 and the adjusting plate 8; when special conditions are encountered during construction, such as slight deviation of the steel bar position, or the structure needs to be adjusted according to different construction requirements, the local structure can be fine-tuned by moving the adjusting plate 8 in the arc groove to meet the diversified construction requirements and improve the flexibility of construction; the adjusting plate 8 and the front tooth plate 1 are detachably connected through the micro-connection structure, and the connection strength of the micro-connection structure is less than the overall structural strength. This means that when the adjusting plate 8 is damaged, worn or needs to be replaced with a different specification adjusting plate 8 to adapt to new construction conditions, it can be conveniently removed from the arc groove without damaging the overall structure of the front tooth plate 1, reducing maintenance and replacement costs and improving construction efficiency.

[0024] The micro-connection structure includes at least one weak connection point, and the weak connection point realizes temporary fixing of the adjusting plate 8 and the front tooth plate 1 through a local welding cooperation mode; the weak connection point adopts a local welding cooperation mode, which is relatively simple to operate, and construction personnel do not need complex tools and professional skills to quickly complete the temporary fixing of the adjusting plate 8 and the front tooth plate 1, saving construction time and improving construction efficiency.

[0025] Each of the side plates 3 is shorter at one end close to the front tooth plate 1 and longer at one end close to the rear tooth plate 2, so that the side plate 3 is inclined; the bottom of the side plate 3 is inclined to match the pouring shape, and is highly consistent with the pouring requirements of the box girder at the position, so that the concrete can be more smoothly filled to the surrounding area of the tooth plate, reducing the dead angle and gap in the pouring process, effectively avoiding structural defects caused by insufficient filling of the concrete, and greatly improving the pouring quality.

[0026] The negative bending moment dismounting tool has two kinds of forms, i.e. with or without the adjusting plate 8; the negative bending moment dismounting tool with the adjusting plate 8 can be selected according to the actual operation condition, and the negative bending moment dismounting tool without the adjusting plate 8 can be selected in the position where the structure needs to be adjusted less, so as to enhance the strength of the position.

[0027] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principle of the present application, and these improvements and refinements should also be regarded as the protection range of the present application.

Claims

1. A tooling system for disassembling and assembling box girder molds, characterized in that, include: The toothed plate is divided into a front toothed plate (1) and a rear toothed plate (2). Two side plates (3) are provided between the front toothed plate (1) and the rear toothed plate (2) to form a U-shape. Multiple tensioning tooth holes (4) are provided on the front toothed plate (1), the rear toothed plate (2) and the two side plates (3). The front toothed plate (1), the rear toothed plate (2) and the two side plates (3) are connected and assembled by bolts and disassembly heads. Multiple anchor holes (5) are provided on each rear toothed plate (2), and the multiple anchor holes (5) are evenly arranged laterally. Each anchor hole (5) is square. A pull-out plate (6) is provided in the middle of the upper end of each side plate (3).

2. The box girder mold assembly and disassembly fixture according to claim 1, characterized in that: Both the front toothed plate (1) and the rear toothed plate (2) are provided with multiple reserved holes (7), each of the reserved holes (7) is a straight groove, and the reserved holes (7) on the rear toothed plate (2) are located above the anchor hole (5).

3. The box girder mold assembly and disassembly fixture according to claim 2, characterized in that: The front tooth plate (1) is provided with an arc groove, and an adjustment plate (8) is provided in the arc groove. The shape of the adjustment plate (8) matches the outline of the arc groove. The adjustment plate (8) and the front tooth plate (1) are connected by a micro-connection structure to form a detachable partial connection. The connection strength of the micro-connection structure is less than the overall structural strength between the front tooth plate (1) and the adjustment plate (8).

4. The box girder mold assembly and disassembly fixture according to claim 3, characterized in that: The micro-connection structure includes at least one weak connection point, which is used to temporarily fix the adjustment plate (8) and the front tooth plate (1) through local welding.

5. The box girder mold assembly and disassembly fixture according to claim 1, characterized in that: Each of the side plates (3) is shorter at the end near the front tooth plate (1) and longer at the end near the rear tooth plate (2) so that the side plate (3) is inclined.

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