A UHPC column enlarged head mold

Abstract

The present invention relates to the technical field of bridge prefabrication construction, and in particular to a UHPC column enlarged head mold, characterized in that it includes a bottom mold and four side molds arranged around the bottom mold, the side molds are spliced ​​and fixed to the bottom mold, and a boss-shaped grouting space is formed in the middle of the bottom mold, and an exhaust boss and a grouting boss are arranged on the boss-shaped grouting space, wherein the exhaust boss is connected to one end of an exhaust pipe, the exhaust pipe is connected and fixed to the side mold, the grouting boss is connected to a grouting sleeve, the grouting sleeve is connected to the grouting space, and the grouting sleeve is connected and fixed to the side mold. The advantages of the present invention are: the construction using an assembled structure is convenient, fast, and safe; the quality of the prefabricated UHPC column enlarged head is extremely high; it is easy to disassemble and assemble, can be reused, and is suitable for promotion.

Description

Technical Field

[0001] The invention relates to the technical field of bridge prefabrication construction, and in particular to a UHPC column enlargement head mold. Background Art

[0002] With the promotion of green and fast construction, prefabricated bridge components are increasingly used in the field of bridge construction, such as prefabricated columns, prefabricated box beams, etc. At present, the load-bearing capacity of UHPC columns is improved by setting an enlarged head at the bottom of the column, but during prefabrication, the existing conventional molds are not equipped, and the prefabrication process cannot be completed quickly, easily and with high quality. Summary of the invention

[0003] The purpose of the present invention is to provide a UHPC column enlarged head mold based on the above-mentioned deficiencies of the prior art, which forms a grouting space through the assembled structure of the bottom mold and the side mold and cooperates with the auxiliary structure to realize the prefabrication of the UHPC column enlarged head.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] A UHPC column enlargement head mold, characterized in that it includes a bottom mold and four side molds arranged around the bottom mold, the side molds are connected and fixed to the bottom mold, and a boss-shaped grouting space is formed in the middle of the bottom mold, and an exhaust boss and a grouting boss are arranged on the boss-shaped grouting space, wherein the exhaust boss is connected to one end of an exhaust pipe, the exhaust pipe is connected and fixed to the side molds, the grouting boss is connected to a grouting sleeve, the grouting sleeve is communicated with the grouting space, and the grouting sleeve is connected and fixed to the side molds.

[0006] The end of the grouting sleeve is configured to be conical, and the grouting boss is provided with a grouting hole that matches the conical end of the grouting sleeve, and the conical end is limited and fixed in the grouting hole.

[0007] The end of the exhaust pipe is configured to be conical, and the exhaust boss is provided with an exhaust hole that matches the conical end of the exhaust pipe, and the conical end is limited and fixed in the exhaust hole.

[0008] A positioning steel plate is provided on the inner wall surface of the grouting space in the middle of the bottom mold, and the positioning steel plate is used to position the reserved ribs of the bottom mold to keep the reserved lengths of several reserved ribs consistent.

[0009] The top surface of the boss-shaped grouting space in the middle of the bottom mold is arranged to be an upward sloping surface.

[0010] The grouting sleeves are respectively arranged on the side molds, and the grouting sleeves are connected through grouting bosses correspondingly arranged in the boss-shaped grouting space.

[0011] The advantages of the present invention are: the assembled structure is convenient, fast and safe to construct; the quality of the prefabricated UHPC column enlarged head is extremely high; it is easy to disassemble and assemble, can be reused, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the bottom mold in the present invention;

[0013] Figure 2 It is a structural schematic diagram of one side mold in the present invention;

[0014] Figure 3 It is a structural schematic diagram of the other side mold in the present invention;

[0015] Figure 4 It is a schematic diagram of the installation structure of the exhaust pipe in the present invention;

[0016] Figure 5 It is a schematic diagram of the installation structure of the grouting sleeve in the present invention. DETAILED DESCRIPTION

[0017] The features of the present invention and other related features are further described in detail below through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

[0018] like Figure 1-5 As shown, the marks 1-12 in the figure respectively represent: bottom mold 1, boss-shaped grouting space 2, exhaust boss 3, grouting boss 4, side mold 5, grouting sleeve connecting hole 6, side mold 7, grouting sleeve connecting hole 8, exhaust pipe 9, positioning steel plate 10, grouting sleeve 11, and rib positioning hole 12.

[0019] Embodiment: In this embodiment, the UHPC column enlargement head mold body includes a bottom mold 1 and side molds 5 and 7 arranged around the bottom mold 1, wherein the side molds 5 are arranged on both sides of the bottom mold 1, and the side molds 7 are also arranged on both sides of the bottom mold 1. The bottom mold 1, the side molds 5 and the side molds 7 are assembled to form the UHPC column enlargement head mold, wherein the bottom mold 1 and the side molds 5 and the side molds 7 are all detachably connected and fixed to facilitate recycling after prefabrication.

[0020] like Figure 1As shown, a boss-shaped grouting space 2 is provided in the middle of the bottom mold 1. The boss-shaped grouting space 2 matches the shape and size of the prefabricated UHPC column enlarged head, and its internal space is the grouting space. An exhaust boss 3 is provided in the center of the boss-shaped grouting space 2. The exhaust boss 3 is used to connect the exhaust pipe 9 to achieve exhaust during grouting, so as to avoid poor quality caused by air remaining in the prefabricated UHPC column enlarged head. A number of grouting bosses 4 are provided along the edge of the boss-shaped grouting space 2. These grouting bosses 4 are used to connect the grouting sleeves to grout into the boss-shaped grouting space 2. A circle of rib positioning holes 12 are also provided on the periphery of the boss-shaped grouting space 2. These rib positioning holes 12 are used to install the ribs of the UHPC enlarged head.

[0021] like Figure 2 and Figure 3 As shown, a grouting sleeve connection hole 6 and a grouting sleeve connection hole 8 are preset on the side mold 5 and the side mold 7 respectively, which are used to connect with the grouting sleeve to inject grout into the boss-shaped grouting space 2.

[0022] like Figure 4 As shown, the end of the exhaust pipe 9 is a conical tip end, which is inserted into the exhaust boss 3 and communicated with the inside of the boss-shaped grouting space 2; when UHPC is injected into the boss-shaped grouting space 2 through the grouting sleeve, the air is discharged from the exhaust pipe 9. The conical tip end of the exhaust pipe 9, on the one hand, improves the connection strength and sealing between it and the exhaust boss 3, thereby improving the exhaust effect; on the other hand, it is convenient for the exhaust pipe 9 to be connected to the exhaust boss 3 when in use, which is convenient for construction.

[0023] In order to further improve the exhaust effect during grouting and improve the prefabrication quality of the UHPC column enlarged head, the top surface of the boss-shaped grouting space 2 is arranged to be an upward slope, so that the exhausted air can be gradually discharged through the upward closing arrangement, ensuring that there is no air residue inside the UHPC after the grouting is completed.

[0024] like Figure 5 As shown, the end of the grouting sleeve 11 is also configured to be a conical tip end similar to the exhaust pipe 9, and is inserted into the grouting boss 4 and communicated with the interior of the boss-shaped grouting space 2, thereby ensuring the connectivity between the grouting sleeve 11 and the grouting boss 4, and further ensuring the grouting effect.

[0025] like Figure 4 or Figure 5 As shown, positioning steel plates 10 are arranged around the inner wall of the boss-shaped grouting space 2, and the positioning steel plates 10 are arranged around the inside of the boss-shaped grouting space 2. Figure 1As shown, a circle of retaining rib positioning holes 12 arranged on the boss-shaped grouting space 2 corresponds to the position of the positioning steel plate 10; when the retaining ribs are inserted into the boss-shaped grouting space 2 through the retaining rib positioning holes 12, the bottom of the retaining ribs can be supported on the positioning steel plate 10, thereby ensuring that when the internal space of the boss-shaped grouting space 2 is not visible, the retaining length of the set retaining ribs remains consistent, thereby improving the prefabrication quality of the UHPC column enlarged head.

[0026] Although the above embodiments have described the concepts and embodiments of the present invention in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and changes can still be made to the present invention without departing from the scope of the claims, so they are not described in detail here.

Claims

1. A UHPC column enlarged head mold for prefabricating UHPC column enlarged heads, characterized by: It comprises a bottom mold and four side molds arranged around the bottom mold, the side molds are spliced ​​and fixed with the bottom mold, a boss-shaped grouting space is formed in the middle of the bottom mold, an exhaust boss and a grouting boss are arranged on the boss-shaped grouting space, wherein the exhaust boss is connected to one end of an exhaust pipe, the exhaust pipe is connected and fixed to the side molds, the grouting boss is connected to a grouting sleeve, the grouting sleeve is communicated with the grouting space, and the grouting sleeve is connected and fixed to the side molds; The end of the grouting sleeve is configured to be conical, and the grouting boss is provided with a grouting hole that matches the conical end of the grouting sleeve, and the conical end is fixed in the grouting hole; The end of the exhaust pipe is set to be conical, and the exhaust boss is provided with an exhaust hole that matches the conical end of the exhaust pipe, and the conical end is limited and fixed in the exhaust hole; the inner wall surface of the grouting space in the middle of the bottom mold is provided with a positioning steel plate, and the positioning steel plate is used to position the reserved ribs of the bottom mold to keep the reserved lengths of several reserved ribs consistent; The side mold is preset with a grouting sleeve connection hole for connecting with the grouting sleeve to inject grout into the boss-shaped grouting space; The top surface of the boss-shaped grouting space in the middle of the bottom mold is arranged to be an upward sloping surface.

2. A UHPC column enlargement head mold according to claim 1, characterized in that: The grouting sleeves are respectively arranged on the side molds, and the grouting sleeves are connected through grouting bosses correspondingly arranged in the boss-shaped grouting space.

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