All-in-one mold suitable for pouring beam-column joints of UHPC transformer substation and using method of all-in-one mold

Abstract

The invention discloses an all-in-one mold suitable for UHPC transformer substation beam column joint pouring and a using method of the all-in-one mold. The all-in-one mold comprises a mold base and four sets of baffle assemblies. The die holder is formed by splicing four die plates which are distributed in a square shape; the template comprises an L-shaped main template and a pair of L-shaped auxiliary templates; the pair of auxiliary templates are vertically formed at the upper parts of the pair of vertical plates of the main template respectively; the four main templates form a square column-shaped upright column cavity in the vertical direction; the four pairs of auxiliary templates form four cross beam cavities in the horizontal direction; the four cross beam cavities are respectively communicated with the upper parts of the stand column cavities; the baffle assemblies are in one-to-one correspondence with the cross beam cavities and are used for sealing communicating ports of the cross beam cavities and the stand column cavities; the baffle assemblies are selectively and detachably installed in the corresponding cross beam cavities. Pouring of multiple different beam-column joints can be achieved through one formwork, the operation convenience is improved, and therefore the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to an all-in-one mold suitable for casting beam-column nodes of a UHPC substation and a use method thereof. Background Art

[0002] UHPC (Ultra-High Performance Concrete) has gradually become a research hotspot in the construction industry since its introduction in the late 1980s due to its excellent physical and mechanical properties. UHPC's compressive, tensile and flexural strengths far exceed those of traditional concrete, and it has excellent weather resistance and durability, allowing it to maintain good performance in extreme environments. In addition, UHPC also has high fluidity, low permeability and good workability, making it easy to achieve complex shapes and high-precision structural construction.

[0003] During the construction of the substation, it is necessary to build a building frame. The building frame is usually constructed in a modular way, and the beams and columns used are prefabricated in advance before the frame is built. When building the building frame, you only need to install and connect the prefabricated beams and columns to the positions on the construction design drawing to complete the frame construction. After the frame is built, UHPC cement needs to be poured at the installation nodes of the beams and columns.

[0004] For the casting of the connection nodes between beams and columns, the existing construction method is to use different templates to cast the nodes at different beam-column nodes. The specific beam-column forms are as follows: Figure 7 , including four forms of a, b, c, and d. In the existing method, multiple sets of different node templates are needed during the construction process. In this way, there are many types of templates used, and the construction efficiency is low. Summary of the invention

[0005] In order to overcome the deficiencies in the prior art, the present invention provides an all-in-one mold suitable for casting beam-column nodes of a UHPC substation and a method for using the same, which has the advantage of being able to cast multiple different beam-column nodes with just one template.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A multi-in-one mold suitable for casting beam-column nodes of a UHPC substation, comprising a mold base and four groups of baffle assemblies; the mold base is spliced ​​by four square-distributed templates; the template comprises an L-shaped main template and a pair of L-shaped auxiliary templates; a pair of the auxiliary templates are respectively vertically formed on the upper part of a pair of vertical plates of the main template; four main templates form a vertical square columnar column cavity; four pairs of the auxiliary templates form four horizontal beam cavities; the four beam cavities are respectively connected to the upper part of the column cavity; the baffle assembly corresponds to the beam cavity one by one and is used to close the connecting port between the beam cavity and the column cavity; the baffle assembly is selectively detachably installed in the corresponding beam cavity.

[0008] By adopting the above technical scheme, according to the different forms of casting nodes, a beam is placed in the beam cavity on the corresponding side, and a baffle assembly is installed in the beam cavity where the beam is not needed to be placed to close the connection between the beam cavity and the column cavity. Then, UHPC cement node casting is performed to form beam-column nodes of different forms. In this way, a plurality of different beam-column nodes can be cast through a pair of templates, which improves the convenience of operation and thus the construction efficiency, and greatly reduces the number of templates, thereby reducing the production cost expenditure. In addition, since the mold base is split into four templates, it is convenient for subsequent transportation and storage, and it is also convenient to surround the column. At the same time, since the four beam cavities are respectively connected to the upper part of the column cavity, the lower part of the mold base forms an extension section for fitting on the column. The existence of the extension section improves the overall stability of the mold, and it is also convenient to be connected together through fasteners later.

[0009] Optionally, the baffle assembly includes a pair of horizontally distributed baffles; end surfaces of a pair of baffles close to the column cavity are flush with vertical side walls close to the column cavity.

[0010] By adopting the above technical solution, the blocking assembly can be split into two baffles, which greatly reduces the overall volume of the blocking assembly, thereby facilitating manual handling and subsequent transportation. At the same time, after assembly is completed, the end faces of a pair of baffles close to the column cavity are flush with the vertical side walls close to the column cavity, which is beneficial to improving the surface quality of the beam-column structure after subsequent casting.

[0011] Optionally, the baffle assembly further includes a baffle rubber strip; during assembly, the baffle rubber strip is clamped between a pair of baffles.

[0012] By adopting the above technical solution, an elastic baffle strip is arranged between a pair of baffles during assembly, and the elasticity of the baffle strip is used to eliminate assembly errors, so that no gap will appear between the pair of baffles, thereby effectively preventing the UHPC cement from accidentally flowing out.

[0013] Optionally, a connecting groove is formed at the vertical edge of the communication port between the beam cavity and the column cavity; and an extension body that cooperates with the connecting groove is formed on the baffle.

[0014] By adopting the above technical solution, after assembly, the extension body is located in the connection groove, thereby improving the ability of the pair of baffles to withstand the lateral pressure generated by the UHPC cement during pouring.

[0015] Optionally, the baffle is connected to the column cavity via a plurality of limit screws.

[0016] By adopting the above technical solution, the baffle is fixed by means of the limit screws, and the limit screws are easy to disassemble and assemble, thereby improving the disassembly and assembly efficiency of the baffle.

[0017] Optionally, baffle reinforcement ribs are formed on the outer surface of the baffle away from the column cavity.

[0018] By adopting the above technical solution, the outer surface of the baffle is provided with baffle reinforcing ribs, which does not affect the internal columns and beams, and at the same time strengthens the strength of the baffle and improves its load-bearing capacity.

[0019] Optionally, template reinforcement ribs are formed on the outer surface of the template away from the column cavity and the beam cavity.

[0020] By adopting the above technical solution, the outer surface of the template is provided with template reinforcement ribs, which does not affect the internal columns and beams, while strengthening the strength of the template and improving its load-bearing capacity.

[0021] A method for using an all-in-one mold specifically comprises the following steps:

[0022] Step S001, connecting four templates by bolts to form a column cavity and four beam cavities, so that the column is located in the column cavity;

[0023] Step S002, according to the actual use scenario, a beam is placed in the corresponding beam cavity and a baffle assembly is installed in the beam cavity where no beam is placed to close the communication port between the beam cavities.

[0024] By adopting the above technical solution, it is selected whether the beam cavity is closed or the beam is placed according to the actual usage scenario, so as to adapt to the casting of different beam-column nodes.

[0025] In summary, the beneficial effects of the present invention are:

[0026] A single set of formwork can be used to cast multiple beam-column nodes, which improves operational convenience and construction efficiency, while also greatly reducing the number of formworks and thus reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram when the four beam cavities 101 of the present invention are all closed.

[0028] Figure 2 It is a schematic structural diagram of the connection between the template 10 and a pair of baffles 30 of the present invention.

[0029] Figure 3 It is a schematic diagram of the exploded structure of the template 10 and the baffle 30 of the present invention.

[0030] Figure 4 The present invention Figure 2 A is a schematic diagram of the partially enlarged structure of FIG.

[0031] Figure 5 It is a schematic structural diagram of the connection between the template 10 and the baffle 30 of the present invention.

[0032] Figure 6 It is a schematic diagram of the structure when four beam-column nodes of the present invention are cast from a top view.

[0033] Figure 7 It is a schematic structural diagram of four beam-column forms of the present invention.

[0034] Description of reference numerals:

[0035] 10. mold base; 100. column cavity; 101. beam cavity;

[0036] 20. template; 21. main template; 210. notch; 211. connection groove; 22. auxiliary template; 23. template reinforcement rib;

[0037] 30. Baffle assembly;

[0038] 40. baffle; 41. extension body; 42. baffle reinforcement rib;

[0039] 50. Baffle rubber strip;

[0040] 70. Limit screw. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-7 The present invention is described in further detail.

[0042] Embodiment 1: Disclose an all-in-one mold suitable for casting beam-column nodes of UHPC substations, referring to Figure 1, including a die holder 10 and four groups of baffle components 30; a vertical square columnar upright cavity 100 and four horizontal crossbeam cavities 101 are formed on the die holder 10; the four crossbeam cavities 101 are located at the upper ends of the four vertical side walls of the upright cavity 100 and are respectively communicated with the upright cavity 100; the baffle components 30 correspond to the crossbeam cavities 101 one by one and the baffle components 30 are used to close the communication ports between the crossbeam cavities 101 and the upright cavity 100; the baffle components 30 can be detachably connected to the inside of the crossbeam cavities 101 by screws; during use, the upright is located in the upright cavity 100, and then according to actual needs, it can be considered which crossbeam cavities 101 to install the baffle components in and which crossbeam cavities 101 to place the crossbeams in.

[0043] Reference Figure 1-Figure 3 , the die holder 10 includes four templates 20; the templates 20 are integrally formed; the template 20 includes an L-shaped main template 21 and a pair of L-shaped sub-templates 22; the pair of sub-templates 22 are respectively vertically formed on the upper parts of the pair of vertical plates of the main template 21; rectangular notches 210 are respectively formed at the upper ends of the pair of vertical plates of the main template 21; during assembly, the four templates 20 are distributed in a square and adjacent pairs of templates 20 are connected by bolts; after assembly, a square column groove-shaped upright cavity 100 is formed between the four main templates 21, and the adjacent pair of sub-templates 22 are combined into a "凵"-shaped with an upward opening and its opening and the pair of notches 210 form a complete rectangular groove-shaped crossbeam cavity 101. The four crossbeam cavities 101 are located at the upper part of the upright cavity 100, that is, a section for sleeving the upright is formed at the lower part of the die holder 10. The existence of the extension section improves the overall stability of the mold and also facilitates subsequent connection into one body through fasteners; at the same time, since the template 20 is integrally formed and located at the corner of the die holder 10, the formed die holder 10 has great rigidity.

[0044] Reference Figure 1-Figure 3 , in order to increase the strength of the template 20 to improve its load-bearing capacity, template reinforcing ribs 23 are formed on the outer surface of the template 20 away from the upright cavity 100 and the crossbeam cavity 101; for convenient connection, connection through holes are formed on the template reinforcing ribs 23 at the edge of the template 20; when the die holder 10 is spliced, bolts pass through the corresponding connection through holes of adjacent templates 20 for connection.

[0045] Reference Figure 1-Figure 3 , the baffle component 30 includes a pair of horizontally distributed baffles 40 and a baffle rubber strip 50 arranged between the pair of baffles 40; the baffle rubber strip 50 has elasticity; for convenient subsequent assembly, the baffle rubber strip 50 is adhered to one of the baffles 40; the baffle 40 is fixed at the communication port between the crossbeam cavity 101 and the upright cavity 100 by a number of limit screws 70. After assembly, the end faces of the pair of baffles 40 close to the upright cavity 100 are flush with the vertical side walls of the upright cavity 100 close to them.

[0046] Reference Figure 1-Figure 3 In order to increase the strength of the baffle 40 and improve its load-bearing capacity, a baffle reinforcing rib 42 is formed on the outer surface of the baffle 40 away from the column cavity 100.

[0047] Example 2: Reference Figure 4 and Figure 5 The difference between the second embodiment and the first embodiment is that: a connecting groove 211 is formed at the vertical edge of the communication port between the beam cavity 101 and the column cavity 100; an extension body 41 that cooperates with the connecting groove 211 is formed at one end of the baffle 40 away from the baffle rubber strip 50; through the cooperation between the extension body 41 and the connecting groove 211, during the pouring of UHPC cement, the ability of the baffle 40 to withstand the lateral pressure generated by the UHPC cement is improved.

[0048] A method of using the all-in-one mold is as follows:

[0049] Step S001, connecting the template reinforcement ribs 23 of four main templates 21 by bolts to form a column cavity 100 and four beam cavities 101, so that the column is located in the column cavity 100;

[0050] Step S002 , according to the actual use scenario, a beam is placed in the corresponding beam cavity 101 and a baffle assembly 30 is installed in the beam cavity 101 where no beam is placed to close the communication port between the beam cavity 101 and the beam cavity 101 .

[0051] You can also use the following methods:

[0052] Step S001, according to the actual use scenario, the template 20 on the corresponding side is fixed to the required baffle 40 by a number of limit screws 70 in advance so that the two form a template unit, and then four template units are placed around the column and then connected by screws.

[0053] According to the above method, it can be combined into Figure 6 The molds required for casting the four types of beam-column joints shown in the figure form the following Figure 7 The four types of beams and columns shown are a, b, c, and d.

[0054] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An all-in-one mold suitable for casting beam-column nodes of UHPC substations, characterized by: The invention comprises a mold base (10) and four groups of baffle plate assemblies (30); the mold base (10) is formed by splicing four square-distributed templates (20); the template (20) comprises an L-shaped main template (21) and a pair of L-shaped auxiliary templates (22); the pair of auxiliary templates (22) are respectively vertically formed on the upper part of a pair of vertical plates of the main template (21); the four main templates (21) form a vertical square columnar column cavity (100); the four pairs of auxiliary templates (22) are respectively vertically formed on the upper part of a pair of vertical plates of the main template (21); the four pairs of auxiliary templates (2 ... are respectively vertically formed on the upper part of a pair of vertical plates of The template (22) forms four horizontal beam cavities (101); the four beam cavities (101) are respectively connected to the upper part of the column cavity (100); the baffle assembly (30) corresponds to the beam cavity (101) one by one and the baffle assembly (30) is used to close the connecting opening between the beam cavity (101) and the column cavity (100); the baffle assembly (30) is selectively detachably installed in the corresponding beam cavity (101).

2. The all-in-one mold suitable for casting beam-column nodes of UHPC substation according to claim 1 is characterized in that: The baffle assembly (30) comprises a pair of horizontally distributed baffles (40); the end surfaces of the pair of baffles (40) close to the column cavity (100) are flush with the vertical side walls close to the column cavity (100).

3. The all-in-one mold suitable for casting beam-column nodes of UHPC substation according to claim 2 is characterized in that: The baffle assembly (30) further comprises a baffle rubber strip (50); the baffle rubber strip (50) is clamped between a pair of baffles (40).

4. The all-in-one mold suitable for casting beam-column nodes of UHPC substation according to claim 2 is characterized in that: A connecting groove (211) is formed at the vertical edge of the communication opening between the cross beam cavity (101) and the column cavity (100); and an extension body (41) that cooperates with the connecting groove (211) is formed on the baffle (40).

5. The all-in-one mold suitable for casting beam-column nodes of UHPC substation according to claim 2 is characterized in that: The baffle (40) is connected to the column cavity (100) via a plurality of limit screws (70).

6. The all-in-one mold suitable for casting beam-column nodes of UHPC substation according to claim 2 is characterized in that: Baffle plate reinforcing ribs (42) are formed on the outer surface of the baffle plate (40) away from the column cavity (100).

7. The all-in-one mold suitable for casting beam-column nodes of UHPC substation according to claim 1 is characterized in that: The outer surface of the template (20) away from the column cavity (100) and the beam cavity (101) is formed with template reinforcement ribs (23).

8. The method for using the all-in-one mold according to claim 1, characterized in that: The specific steps include: Step S001, connecting four templates (20) by bolts to form a column cavity (100) and four beam cavities (101), so that the column is located in the column cavity (100); Step S002, according to the actual use scenario, a beam is placed in the corresponding beam cavity (101) and a baffle assembly (30) is installed in the beam cavity (101) where no beam is placed to close the communication port between the beam cavity (101) and the beam cavity (101).

Images