UHPC fabricated formwork column and construction structure thereof

Abstract

The utility model discloses a UHPC assembly type formwork column and a construction structure thereof, the UHPC assembly type formwork column comprises a reinforcement cage and a UHPC formwork arranged on the outer side of the reinforcement cage, the UHPC formwork comprises four UHPC boards, a plurality of convex ribs are horizontally arranged on the inner side faces of the UHPC boards at intervals, the two ends of each convex rib are respectively provided with a first threaded hole, the board face of each UHPC board is provided with a plurality of opposite-pulling threaded holes, and the opposite-pulling threaded holes are connected with the reinforcement cage. Second threaded holes are formed in the two sides of the plate face of the UHPC plate respectively. Every two opposite UHPC boards are connected in the mode that opposite-pulling screws penetrate through the corresponding opposite-pulling threaded holes, and every two adjacent UHPC boards penetrate through the second threaded holes through bolts to be connected with the corresponding first threaded holes. The UHPC assembly type formwork column is easy to assemble, light in self weight and large in toughness, the UHPC plates are prefabricated in a factory mode, the appearance is compact, secondary repairing is not needed, the construction period is shortened, durability is good, overall transportation after assembly can be achieved, construction quality is guaranteed, meanwhile, construction efficiency is improved, and construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a UHPC assembled formwork column and a construction structure thereof. Background Art

[0002] In the existing technology, columns generally adopt cast-in-place structures. The columns need to be tied with steel bars and support formwork on site, which makes construction inconvenient and has certain requirements for the strength and rigidity of the formwork. There are also prefabricated columns in the existing technology, but the existing prefabricated columns have the problems of being too heavy and inconvenient to install. In view of this, it is necessary to design a UHPC prefabricated formwork column and its construction structure. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the utility model provides a UHPC assembled formwork column and a construction structure thereof.

[0004] The technical solution of the utility model to solve the above problems is:

[0005] A UHPC assembled formwork column comprises a steel cage and a UHPC formwork arranged outside the steel cage. The UHPC formwork comprises four UHPC panels, wherein a plurality of convex ribs are horizontally spaced on the inner side surfaces of the UHPC panels, and a first threaded hole is respectively provided at each end of the convex ribs. A plurality of tension threaded holes are provided on the panel surface of the UHPC panels, and a second threaded hole is respectively provided on both sides of the panel surface of the UHPC panels. Two opposing UHPC panels are connected by tension screws passing through corresponding tension threaded holes, and two adjacent UHPC panels are connected by bolts passing through the second threaded holes and the corresponding first threaded holes.

[0006] Furthermore, auxiliary angle irons are provided around the bottom of the steel cage.

[0007] Furthermore, the UHPC board has a thickness of 20 to 25 mm and a density of 2.800 to 2.850 t / m³.

[0008] Furthermore, the convex ribs are arranged at intervals of 400 to 600 mm.

[0009] The utility model also provides a UHPC assembled formwork column construction structure, comprising:

[0010] The UHPC assembled formwork column includes a steel cage and a UHPC formwork arranged outside the steel cage. The UHPC formwork includes four UHPC panels. The inner side of the UHPC panel is horizontally spaced with a plurality of convex ribs. The two ends of the convex ribs are respectively provided with a first threaded hole. The panel surface of the UHPC panel is provided with a plurality of tension threaded holes. The panel surface of the UHPC panel is respectively provided with a second threaded hole. The two opposing UHPC panels are connected by tension screws passing through the corresponding tension threaded holes, and the two adjacent UHPC panels are connected to the corresponding first threaded holes by bolts passing through the second threaded holes.

[0011] The bottom formwork is arranged on the outside of the bottom of the steel cage, and includes four wooden formworks, square timbers and clamps. The outer sides of the four wooden formworks are respectively provided with square timbers, and the four wooden formworks are connected by clamps;

[0012] The diagonal brace assembly includes a first mounting plate, a second mounting plate, a first diagonal brace and a second diagonal brace. One end of the first diagonal brace is hinged to the UHPC board through a hinge seat, and the other end is hinged to the first mounting plate through a hinge seat; one end of the second diagonal brace is hinged to the wooden formwork through a hinge seat, and the other end is hinged to the second mounting plate through a hinge seat. Anchor bolts are respectively provided at the bottom of the first mounting plate and the second mounting plate.

[0013] Furthermore, auxiliary angle irons are provided around the bottom of the steel cage.

[0014] Furthermore, the UHPC board has a thickness of 20 to 25 mm and a density of 2.800 to 2.850 t / m³.

[0015] Furthermore, the convex ribs are arranged at intervals of 400 to 600 mm.

[0016] The UHPC assembled formwork columns of this utility model are simple to assemble, light in weight, and have great toughness. The UHPC panels are prefabricated in the factory, have a dense appearance, and do not require secondary repairs, which shortens the construction period and has good durability. They can be transported as a whole after assembly, while ensuring construction quality, improving construction efficiency and reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the UHPC prefabricated formwork column;

[0018] Figure 2 Schematic diagram of the structure of the bottom mold;

[0019] Figure 3 This is a schematic diagram of the construction structure of the UHPC prefabricated formwork column;

[0020] In the figure: UHPC formwork 1, UHPC board 2, anchor bolts 3, steel cage 4, first threaded hole 5, tension threaded hole 6, auxiliary angle iron 7, first diagonal brace 8, wooden formwork 9, square timber 10, clamp 11, hinged seat 12, convex rib 13, second threaded hole 14, second diagonal brace 15, second mounting plate 16, first mounting plate 17. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0022] UHPC Ultra-High Performance Concrete, referred to as UHPC, is a new type of cement-based structural engineering material. UHPC material has the advantages of light weight, high strength, high toughness and dense surface.

[0023] Example 1, see Figure 1 As shown, a UHPC assembled formwork column includes a steel cage 4 and a UHPC formwork 1 arranged outside the steel cage 4, the UHPC formwork 1 includes four UHPC panels 2, and the inner side surfaces of the UHPC panels 2 are horizontally spaced with a plurality of convex ribs 13. Preferably, the convex ribs 13 are arranged at intervals of 400 to 600 mm; the thickness of the UHPC panels 2 is 20 to 25 mm, and the density is 2.800 to 2.850 t / m³; first threaded holes 5 are respectively provided at both ends of the convex ribs 13, a plurality of tension threaded holes 6 are provided on the panel surface of the UHPC panels 2, and second threaded holes 14 are respectively provided on both sides of the panel surface of the UHPC panels 2; two opposing UHPC panels 2 are connected by tension screws passing through the corresponding tension threaded holes 6, and two adjacent UHPC panels 2 are connected to the corresponding first threaded holes 5 by bolts passing through the second threaded holes 14.

[0024] In this embodiment, auxiliary angle irons 7 are respectively provided around the bottom of the reinforcement cage 4. The auxiliary angle irons 7 can be used to horizontally position the UHPC formwork 1 and play a role in vertical erection stability.

[0025] In this embodiment, the steel cage 4 and the UHPC plate 2 are shaped, processed, and assembled in the factory according to the column size. The four sides of the UHPC plate 2 are prefabricated separately. The UHPC formwork 1 is assembled by the convex ribs 13 and the tension screws to lock the internal steel cage 4. The UHPC plate 2 itself is part of the structure, and there is no need to set up column formwork.

[0026] Example 2, see Figures 1 to 3 As shown, a UHPC assembled formwork column construction structure includes:

[0027] The UHPC assembled formwork column includes a steel cage 4 and a UHPC formwork 1 arranged on the outside of the steel cage 4. The UHPC formwork 1 includes four UHPC panels 2. The inner side of the UHPC panel 2 is horizontally spaced with a plurality of convex ribs 13. Preferably, the convex ribs 13 are arranged at intervals of 400 to 600 mm. The thickness of the UHPC panel 2 is 20 to 25 mm, and the density is 2.800 to 2.850 t / m³. First threaded holes 5 are respectively provided at both ends of the convex rib 13. A plurality of tension threaded holes 6 are provided on the panel surface of the UHPC panel 2. Second threaded holes 14 are respectively provided on both sides of the panel surface of the UHPC panel 2. The two opposing UHPC panels 2 are connected by tension screws passing through the corresponding tension threaded holes 6, and the two adjacent UHPC panels 2 are connected to the corresponding first threaded holes 5 by bolts passing through the second threaded holes 14.

[0028] The bottom formwork is arranged on the outside of the bottom of the reinforcement cage 4, and includes four wooden formworks 9, square timbers 10 and hoop 11. The outer sides of the four wooden formworks 9 are respectively provided with square timbers 10, and the four wooden formworks 9 are connected by hoop 11;

[0029] The diagonal brace assembly includes a first mounting plate 17, a second mounting plate 16, a first diagonal brace 8 and a second diagonal brace 15. One end of the first diagonal brace 8 is hinged to the UHPC board 2 through a hinge seat 12, and the other end is hinged to the first mounting plate 17 through a hinge seat 12; one end of the second diagonal brace 15 is hinged to the wooden formwork 9 through a hinge seat 12, and the other end is hinged to the second mounting plate 16 through a hinge seat 12. Anchor bolts 3 are respectively provided at the bottom of the first mounting plate 17 and the second mounting plate 16.

[0030] In this embodiment, auxiliary angle irons 7 are respectively provided around the bottom of the reinforcement cage 4. The auxiliary angle irons 7 can be used to horizontally position the UHPC formwork 1 and play a role in vertical erection stability.

[0031] The construction process of this utility model:

[0032] Before construction, the factory produces UHPC panels 2 and tied steel cages 4 according to the column size, welds auxiliary angle irons 7 to the bottom of the steel cages 4, and uses the auxiliary angle irons 7 to position them. The UHPC panels 2 and the steel cages 4 are assembled into one piece by bolts and tension bolts, forming a UHPC prefabricated formwork column, which is then transported to the construction site. After the floor surface at the bottom of the column is roughened and marked, the UHPC prefabricated formwork column is hoisted to the designated position. After being hoisted into place, the lower layer of steel bars of the column and the steel cages 4 of the UHPC prefabricated formwork column are welded, and the bottom is fixed with a bottom formwork, supported by diagonal bracing assemblies and adjusted for verticality. Concrete is poured from the top of the UHPC prefabricated formwork column, poured and vibrated, and after curing, the bottom formwork is removed to complete the construction.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A UHPC assembled formwork column, characterized in that: The invention comprises a steel cage (4) and a UHPC formwork (1) arranged outside the steel cage (4), wherein the UHPC formwork (1) comprises four UHPC panels (2), wherein a plurality of convex ribs (13) are horizontally spaced on the inner side surface of the UHPC panel (2), and a first threaded hole (5) is respectively provided at both ends of the convex rib (13); a plurality of tension threaded holes (6) are provided on the panel surface of the UHPC panel (2), and a second threaded hole (14) is respectively provided on both sides of the panel surface of the UHPC panel (2); two opposite UHPC panels (2) are connected by tension screws passing through corresponding tension threaded holes (6), and two adjacent UHPC panels (2) are connected to corresponding first threaded holes (5) by bolts passing through the second threaded holes (14).

2. A UHPC assembled formwork column according to claim 1, characterized in that: Auxiliary angle irons (7) are respectively provided around the bottom of the reinforcement cage (4).

3. The UHPC assembled formwork column according to claim 1, characterized in that: The UHPC board (2) has a thickness of 20 to 25 mm and a density of 2.800 to 2.850 t / m³.

4. The UHPC assembled formwork column according to claim 1, characterized in that: The convex ribs (13) are arranged at intervals of 400 to 600 mm.

5. A UHPC assembled formwork column construction structure, characterized in that: include: A UHPC assembled formwork column, the UHPC assembled formwork column comprises a steel cage (4) and a UHPC formwork (1) arranged outside the steel cage (4), the UHPC formwork (1) comprises four UHPC plates (2), the inner side surface of the UHPC plate (2) is provided with a plurality of convex ribs (13) at intervals horizontally, the two ends of the convex ribs (13) are respectively provided with a first threaded hole (5), the plate surface of the UHPC plate (2) is provided with a plurality of tension threaded holes (6), and the two sides of the plate surface of the UHPC plate (2) are respectively provided with a second threaded hole (14); two opposite UHPC plates (2) are connected by tension screws passing through corresponding tension threaded holes (6), and two adjacent UHPC plates (2) are connected to the corresponding first threaded holes (5) by bolts passing through the second threaded holes (14); A bottom formwork, the bottom formwork being arranged outside the bottom of the steel cage (4), comprising four wooden formworks (9), square timbers (10) and a hoop (11), wherein the outer sides of the four wooden formworks (9) are respectively provided with square timbers (10), and the four wooden formworks (9) are connected by the hoop (11); A diagonal brace assembly, comprising a first mounting plate (17), a second mounting plate (16), a first diagonal brace (8) and a second diagonal brace (15), wherein one end of the first diagonal brace (8) is hinged to the UHPC board (2) via a hinge seat (12), and the other end is hinged to the first mounting plate (17) via a hinge seat (12); one end of the second diagonal brace (15) is hinged to the wooden formwork (9) via a hinge seat (12), and the other end is hinged to the second mounting plate (16) via a hinge seat (12); and anchor bolts (3) are respectively provided at the bottom of the first mounting plate (17) and the second mounting plate (16).

6. A UHPC assembled formwork column construction structure according to claim 5, characterized in that: Auxiliary angle irons (7) are respectively provided around the bottom of the reinforcement cage (4).

7. The UHPC assembled formwork column construction structure according to claim 5, characterized in that: The UHPC board (2) has a thickness of 20 to 25 mm and a density of 2.800 to 2.850 t / m³.

8. The UHPC assembled formwork column construction structure according to claim 5, characterized in that: The convex ribs (13) are arranged at intervals of 400 to 600 mm.

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