A special-shaped hollow wall column formwork support structure

Abstract

The utility model provides a kind of special-shaped hollow wall column formwork supporting structure, including outer formwork, inner core mould and positioning member, wherein outer formwork is shaped formwork, and several outer formwork is enclosed to form set shape, and is fastened by annular hoop;Inner core mould is hollow structure, is set in the inside of outer formwork, and reserved pouring space between inner core mould and outer formwork;The one end of positioning member extends to pouring space, for being connected with wall column reinforcement;The other end is abutted on inner core mould, for limiting inner core mould.The utility model sets up outer formwork, inner core mould and positioning member, reduces the installation and dismounting difficulty of special-shaped hollow wall column formwork supporting structure, improves construction efficiency;The positioning of outer formwork and inner core mould is accurate, and connection is reliable, to ensure the pouring quality of special-shaped hollow wall column.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a formwork support structure for irregular hollow wall columns. Background Technology

[0002] With the increasing diversity of architectural styles, the structures and shapes of irregularly shaped columns are becoming more and more complex to meet the spatial layout requirements of buildings. This is especially true for the design of irregularly shaped hollow pilasters, which presents numerous challenges for construction. Currently, two main formwork support methods are used for irregularly shaped hollow pilasters: one is using wooden formwork, but this involves complex formwork procedures, high labor costs, slow construction progress, and difficulty in guaranteeing construction quality; the other is using aluminum formwork, which has a cumbersome construction process, especially the difficulty in dismantling the inner aluminum formwork, severely impacting construction efficiency and costs. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a formwork support structure for irregular hollow wall columns, which is particularly suitable for reducing the difficulty of installation and disassembly of the formwork support structure for irregular hollow wall columns and improving construction efficiency; the positioning of the outer formwork and the inner core mold are accurate and the connection is reliable, ensuring the casting quality of the irregular hollow wall columns.

[0004] The technical solution adopted in this utility model is: an irregular hollow wall column formwork support structure, comprising:

[0005] The outer template is a fixed template, and several outer templates are enclosed to form a set shape and fastened by a ring clamp;

[0006] The inner core mold is a hollow structure and is set inside the outer template, with a reserved casting space between it and the outer template;

[0007] The positioning component has one end extending into the casting space for connection with the column reinforcement; the other end abuts against the inner core mold for limiting the inner core mold.

[0008] Furthermore, the positioning element includes a top positioning element disposed on the top of the inner core mold and a bottom positioning element disposed on the bottom of the inner core mold.

[0009] Furthermore, the positioning element includes a horizontal plate and a vertical plate. One end of the horizontal plate extends into the casting space, and the other end is attached to the top or bottom surface of the inner core mold. The vertical plate is attached to the side surface of the inner core mold.

[0010] Furthermore, there are at least four top positioning members, arranged in pairs opposite each other and connected by connectors.

[0011] Furthermore, the inner core mold is made of polystyrene board and includes multiple core mold bodies arranged from top to bottom, with the core mold bodies interlocking and connected.

[0012] Furthermore, in the adjacent core mold bodies, the upper end face of the lower core mold body is provided with a protrusion, and the lower end face of the upper core mold body is provided with a groove that matches the protrusion.

[0013] Furthermore, the outer template is an aluminum template, and the annular clamp is disposed on the outside of the outer template, including a clamp body and a tie assembly. The clamp body at the external corner is connected by the tie assembly.

[0014] Furthermore, the clamp body is arranged at intervals on the upper and lower sides, and the tie assembly includes a fixing member, a tie plate, and a tie member. The fixing member is disposed on the outer side of the end of the clamp body, and the two ends of the tie plate are respectively connected to the two fixing members. The two tie plates at the external corner are arranged opposite to each other, and the tie member passes through the gap between the fixing members and is connected to the tie plate.

[0015] Furthermore, the fastener has an L-shaped structure, with its two sides obliquely connected to the outer side of the clamp body, and the tie plate is located on the side of the fastener away from the end of the clamp body.

[0016] The advantages and positive effects of this utility model are:

[0017] (1) By using aluminum film to shape the outer formwork and polystyrene board to make the inner core mold, and by using positioning parts to position and limit the inner core mold, the outer formwork can be removed after the wall column is formed, while the inner core mold is left inside the wall column. This reduces the difficulty of installation and disassembly of the irregular hollow wall column formwork support structure and improves construction efficiency. The positioning of the outer formwork and the inner core mold are accurate and the connection is reliable, which ensures the casting quality of the irregular hollow wall column.

[0018] (2) By setting positioning components, the inner core mold can be positioned during installation to ensure accurate installation position; the inner core mold can also be limited during concrete pouring to prevent lateral displacement and floating, thus further ensuring the pouring quality of the irregular hollow wall column.

[0019] (3) By designing tie components, the outer formwork can be fastened without passing through the main structure of the irregular hollow wall column. It is easy to process and manufacture, and convenient to install and dismantle. It is conducive to the reuse of the outer formwork, the main body of the clamp and the tie components. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a specific embodiment of the present invention;

[0021] Figure 2 This is a top view schematic diagram of a specific embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the core mold main structure of a specific embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the tie assembly structure of a specific embodiment of this utility model.

[0024] In the picture:

[0025] 1. Outer formwork; 2. Inner core mold; 21. Core mold body; 3. Positioning component; 4. Ring clamp; 41. Clamp body; 42. Tie assembly; 421. Fixing component; 422. Tie plate; 423. Tie component; 5. Concrete; 6. Wall column reinforcement; 7. Wall; 8. Connector. Detailed Implementation

[0026] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0027] like Figures 1 to 4As shown in the figure, this utility model embodiment proposes an irregular hollow wall column formwork support structure, including an outer formwork 1, an inner core mold 2, and a positioning member 3. The outer formwork 1 is a fixed formwork, and several outer formworks 1 are enclosed to form a predetermined shape and fastened by an annular clamp 4. The inner core mold 2 is a hollow structure and is set inside the outer formwork 1. A casting space is reserved between the inner core mold 2 and the outer formwork 1. One end of the positioning member 3 extends into the casting space for connection with the wall column reinforcement 6; the other end abuts against the inner core mold 2 for limiting the inner core mold 2. The aforementioned outer template 1 is used to form a wall column of a predetermined shape. Each outer template 1 is manufactured using a pre-fabricated method, and the shape formed by connecting several outer templates 1 is adapted to the external shape of the wall column. The aforementioned inner core mold 2 is used to form the hollow part of the wall column. It has been pre-processed to meet the design requirements before construction and can be transported and installed as a whole structure. There is a predetermined distance between the inner core mold 2 and the outer template 1, forming a pouring space around the inner core mold 2 for pouring the wall column concrete 5. The wall column reinforcement 6 is provided in this pouring space. Under normal circumstances, the wall column reinforcement 6 is set at a predetermined position between the inner core mold 2 and the outer template 1. This predetermined position leaves a distance between the wall column reinforcement 6 and the inner core mold 2 and the outer template 1 that is adapted to the thickness of the reinforcement protective layer. The aforementioned positioning member 3 can abut against the inner core mold 2 and connect it with the wall column reinforcement. The 6 parts are connected together to form a limit on the inner core mold 2, which can not only prevent the inner core mold 2 from shifting laterally, but also effectively prevent the inner core mold 2 from floating during the concrete 5 pouring process. During construction, the positioning parts 3 are first installed at the preset position of the wall column and the wall column reinforcement 6 is tied. Then the inner core mold 2 is installed and the inner core mold 2 is limited by the positioning parts 3. Then the outer formwork 1 is erected and the outer formwork 1 is fastened by the ring clamp 4 to prevent the outer formwork 1 from deforming. After the wall column is formed, the outer formwork 1 is removed, while the inner core mold 2 is left inside the wall column. Through the above technical solution, the installation and dismantling difficulty of the irregular hollow wall column formwork support structure is reduced, the labor cost is reduced, and the construction efficiency is improved. At the same time, the positioning of the outer formwork 1 and the inner core mold 2 is accurate and the connection is reliable, ensuring the pouring quality of the irregular hollow wall column.

[0028] It should be noted that, in this embodiment, the outer contour of the wall column is a polygon including several external corner parts. The outer template 1 can be shaped and manufactured according to each side of the wall column; or the outer contour of the wall column can be divided into several parts with external corners, and each outer template 1 can be made into a spatial shape with external corners. Depending on the length of the wall column, the outer template 1 can be set along the entire length, or it can be formed by splicing together multiple layers of single outer templates 1 set from bottom to top. There are no restrictions here.

[0029] Furthermore, in this embodiment, the positioning element 3 includes a top positioning element 3 disposed on the inner core mold 2 and a bottom positioning element 3 disposed on the bottom of the inner core mold 2. The bottom positioning element 3 is used to position the inner core mold 2 before installation to ensure accurate positioning. After installation, it abuts against the bottom end of the inner core mold 2, thus working with the top positioning element 3 to limit the inner core mold 2. Through their cooperation, lateral limiting of the upper and lower ends of the inner core mold 2 is achieved, ensuring the inner core mold 2 is more stably fixed in the set position from top to bottom without lateral displacement. Simultaneously, the top positioning element 3 abuts against the top of the inner core mold 2, limiting the height of the top of the inner core mold 2 to resist the upward buoyancy during concrete pouring. The connection method of the top and bottom positioning elements 3 with the inner core mold 2 simplifies the installation operation of the top and bottom positioning elements 3, improving construction efficiency and convenience.

[0030] Furthermore, in the embodiments of this application, the positioning member 3 includes a horizontal plate and a vertical plate. One end of the horizontal plate extends into the casting space, and the other end is attached to the top or bottom surface of the inner core mold 2. The vertical plate is attached to the side surface of the inner core mold 2. Specifically, the positioning component 3 has a T-shaped structure, with the vertical plate vertically positioned in the middle of the horizontal plate. When the positioning component 3 is used as the top positioning component 3, the vertical plate faces downward, so that one end of the horizontal plate is attached to the top surface of the inner core mold 2, while the vertical plate is attached to the straight side of the inner core mold 2. When the positioning component 3 is used as the bottom positioning component 3, the vertical plate faces upward, used to limit the installation position of the inner core mold 2. After installation, the bottom surface of the inner core mold 2 presses against the horizontal plate, while the vertical plate is attached to the straight side of the inner core mold 2. The horizontal plate extends sufficiently from the vertical plate towards the outer template 1 to connect with the wall column reinforcement 6. Through the above design, the overall structure of the positioning component 3 is simple, easy to manufacture, convenient to install, easy to use, and has a stable connection, effectively fulfilling the positioning and limiting functions of the positioning component 3 for the inner core mold 2.

[0031] Furthermore, in this embodiment, there are at least four top positioning members 3, arranged in pairs opposite each other and connected by connectors 8. Specifically, the two ends of the connectors 8 are respectively fixed to the horizontal plates of two oppositely arranged top positioning members 3, which not only connects the two top positioning members 3, making the top positioning members 3 more stable, but also, because it spans the top surface of the inner core mold 2, forms a reinforced limit on the top surface, so as to cooperate with the positioning members 3 to more effectively prevent the inner core mold 2 from floating up during the concrete 5 pouring process;

[0032] Preferably, in a preferred embodiment of the above-described technical solution, the connector 8 is welded to the horizontal plate, and the bottom surfaces of the two are flush, so that the connector 8 contacts the top surface of the inner core mold 2; and several connectors 8 are cross-connected to connect multiple positioning parts 3 and multiple connectors 8 to form an integral structure, thereby improving the stability of the positioning parts 3 and connectors 8.

[0033] It should be noted that multiple bottom positioning components 3 can be set as needed. Preferably, the installation positions of the positioning components 3 correspond one-to-one with the top positioning components 3, and the bottom positioning components 3 can be connected by connectors 8. Alternatively, they can be set separately without connection.

[0034] Furthermore, in this embodiment, the inner core mold 2 is made of polystyrene board, comprising multiple core mold bodies 21 arranged from top to bottom, with the core mold bodies 21 interlocking and connected. Polystyrene board has the characteristics of low density and light weight, making it easy to transport and process into specific shapes, and it has certain compressive and tensile strength, capable of withstanding certain loads and deformations. Using polystyrene board to make the core mold bodies 21 facilitates the integral installation of the core mold bodies 21, and after construction, it remains inside the wall column, without causing a significant increase in the load on the building structure. Compared with other forms of core molds, it reduces manufacturing costs and eliminates the need for dismantling. By setting the inner core mold 2 as multiple core mold bodies 21 interlocking and connected from top to bottom, the volume of a single core mold body 21 is avoided to be too large, making it easier to transport and install, while also improving the overall deformation resistance of the core mold.

[0035] Specifically, in the above embodiment, among the adjacent core mold bodies 21, the upper end face of the lower core mold body 21 is provided with a protrusion, and the lower end face of the upper core mold body 21 is provided with a groove that matches the protrusion; through the cooperation of the protrusion and the groove, the upper and lower core mold bodies 21 can be easily connected to fit together, ensuring the stability of the connection and the installation accuracy.

[0036] Furthermore, in the above embodiments, such as Figure 2 As shown, the outer formwork 1 is an aluminum formwork, and the annular clamp 4 is set on the outside of the outer formwork 1, including the clamp body 41 and the tie assembly 42. The clamp body 41 at the external corner is connected by the tie assembly 42. The annular clamp 4 is used to fasten the outer formwork 1 to prevent the outer formwork 1 from deforming under the lateral pressure of the concrete 5. The clamp body 41 is connected in sequence by the tie assembly 42 to form the annular clamp 4. By adjusting the tie assembly 42, the two clamp columns can be tightly connected, so that the annular clamp 4 presses against the outer formwork 1, thereby firmly fixing it to the outer formwork 1. The clamp body 41 and the tie assembly 42 are both set on the outside of the outer formwork 1, which makes installation easier and avoids structural damage caused by the tie assembly 42 passing through the main structure of the wall column.

[0037] Furthermore, in the embodiments of this application, such as Figure 2 , Figure 4 As shown, the clamp body 41 is arranged at intervals on the top and bottom. The tie assembly 42 includes a fixing member 421, a tie plate 422 and a tie member 423. The fixing member 421 is arranged on the outer side of the end of the clamp body 41. The two ends of the tie plate 422 are respectively connected to the upper and lower fixing members 421. The two tie plates 422 at the external corner are arranged opposite to each other. The tie member 423 passes through the gap between the fixing members 421 and is connected to the tie plate 422. Specifically, the clamp body 41 is made of square steel and includes four sides and two end faces. The inner side is attached to the outer template 1, and the fastener 421 protrudes from the outer side of the clamp body 41. The upper and lower clamp bodies 41 are connected by the fastener 421 and the tie plate 422 to form an integral structure with good stability. The tie plate 422 is respectively set on the end face of the fastener 421 that is far from the external corner, and the tie plate 422 is located on the outside of the clamp body 41. The middle part corresponds to the gap between the fasteners 421, providing sufficient space for the installation of the tie plate 423. By reasonably setting the height of the fastener 421 protruding from the clamp body 41, it can be adapted to the connection between clamp bodies 41 at external corners of different angles.

[0038] Furthermore, in one optional technical solution of the above embodiment, the fastener 421 has an L-shaped structure, with its two sides obliquely connected to the outer side of the clamp body 41, and the tie plate 422 disposed on the side of the fastener 421 away from the end of the clamp body 41. Specifically, the fastener 421 can be made of angle steel, and the lengths of its two sides connected at right angles can be the same or different. The ends of the two sides that are far apart from each other are welded to the outer side of the end of the clamp body 41. Through the above technical solution, the two fasteners 421 and the tie plate 422 can be assembled on the two clamp bodies 41 before construction, and a connection hole adapted to the waste component is opened in the middle of the tie plate 422, which makes it easier to install the clamp body 41 on the outside of the outer template 1 to form a ring clamp 4 through the tie assembly 42, which is convenient for processing, manufacturing and installation.

[0039] This application also proposes a construction method using the above-mentioned irregular hollow wall column formwork support structure, including the following steps:

[0040] S1. According to the shape of the irregular hollow wall column, make the outer template 1, the core mold body 21, the positioning part 3 and the clamp body 41 respectively;

[0041] In this embodiment, the outer template 1 is made of aluminum film and is shaped and manufactured according to the shape of each side of the irregular hollow wall column. Multiple layers of outer template 1 are set along the height direction of the irregular hollow wall column. The clamp body 41 is shaped and manufactured according to the shape of the outer template 1 after assembly. For corner parts with large angles, the clamp body 41 is made to have a bending angle that matches it. The clamp bodies 41 are in pairs. Each clamp body 41 has a fixing member 421 at both ends. The fixing members 421 of the two clamp bodies 41 are connected by a tie plate 422.

[0042] In this embodiment, the positioning element 3 includes a horizontal plate and a vertical plate. The extension length of the horizontal plate located on one side of the vertical plate is set according to the distance between the wall column reinforcement 6 and the inner core mold 2.

[0043] S2. Mark the axis control line and edge positioning marks of the irregular hollow wall column on the surface of the base concrete 5, and place the bottom positioning part 3 according to the positioning marks;

[0044] Specifically, to ensure that the bottom positioning component 3 is stably fixed in the positioning position, structural adhesive is used to glue it to the base concrete 5.

[0045] S3. Install the core mold body 21 sequentially from bottom to top;

[0046] Specifically, first install the bottommost core mold body 21, then align the groove of the uppermost core mold body 21 with the protrusion on the bottommost core mold body 21 to ensure a tight fit; install the next layer of core mold bodies 21 one by one; it can be understood that the top surface of the bottommost core mold body 21 has a protrusion, and the bottom surface is a flat plane; the top surface of the uppermost core mold body 21 is a flat plane, and the bottom surface has a groove.

[0047] S4. Install wall column reinforcement 6;

[0048] Specifically, the wall column reinforcement 6 is pre-embedded according to the design requirements, and the position and length deviation of the wall column reinforcement 6 are controlled within the allowable range. During the pre-embedding process, positioning bars are used to fix the pre-embedded reinforcement to prevent it from shifting during the pouring of concrete 5.

[0049] S5. Install the outer template 1 layer by layer from bottom to top, and fasten it with the ring clamp 4;

[0050] S6. Install the top positioning piece 3 and the connector 8;

[0051] After the outer formwork 1 is installed, the top positioning piece 3 is installed in the set position, so that the vertical plate of the top positioning piece 3 is attached to the side of the inner core mold 2, one end of the horizontal plate is attached to the top surface of the inner core mold 2, and the other end is welded to the wall column steel bar 6.

[0052] S7. Pour the concrete for the wall column and cure it.

[0053] S8. Remove the outer formwork 1.

[0054] The inner core mold 2 serves as a permanent inner template and does not need to be removed; especially when the pilaster is located close to the wall 7, such as... Figure 2 As shown, the inner core mold 2 can also be used as part of the wall insulation board, which improves the building's energy-saving effect; while the removed outer formwork 1, clamp body 41 and tie assembly 42 can be reused.

[0055] The advantages and positive effects of this utility model are:

[0056] (1) By using aluminum film to shape the outer formwork and polystyrene board to make the inner core mold, and by using positioning parts to position and limit the inner core mold, the outer formwork can be removed after the wall column is formed, while the inner core mold is left inside the wall column. This reduces the difficulty of installation and disassembly of the irregular hollow wall column formwork support structure and improves construction efficiency. The positioning of the outer formwork and the inner core mold are accurate and the connection is reliable, which ensures the casting quality of the irregular hollow wall column.

[0057] (2) By setting positioning components, the inner core mold can be positioned during installation to ensure accurate installation position; the inner core mold can also be limited during concrete pouring to prevent lateral displacement and floating, thus further ensuring the pouring quality of the irregular hollow wall column.

[0058] (3) By designing tie components, the outer formwork can be fastened without passing through the main structure of the irregular hollow wall column. It is easy to process and manufacture, and convenient to install and dismantle. It is conducive to the reuse of the outer formwork, the main body of the clamp and the tie components.

[0059] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A formwork support structure for a hollow wall column of irregular shape, characterised in that, include: The outer template is a fixed template, and several outer templates are enclosed to form a set shape and fastened by a ring clamp; An inner core mold, which is a hollow structure, is located inside the outer template and has a reserved casting space between it and the outer template. The positioning component has one end extending into the casting space for connection with the column reinforcement; the other end abuts against the inner core mold for limiting the inner core mold.

2. The irregular hollow wall column formwork structure according to claim 1, characterized in that: The positioning components include a top positioning component disposed on the top of the inner core mold and a bottom positioning component disposed on the bottom of the inner core mold.

3. The irregular-shaped hollow wall column formwork structure according to claim 2, wherein: The positioning component includes a horizontal plate and a vertical plate. One end of the horizontal plate extends into the casting space, and the other end is attached to the top or bottom surface of the inner core mold. The vertical plate is attached to the side surface of the inner core mold.

4. The irregular-shaped hollow wall column formwork structure according to claim 3, wherein: The top positioning element consists of at least four parts, arranged in pairs opposite each other and connected by a connector.

5. The engineered hollow wall column formwork structure according to any one of claims 1-4, wherein: The inner core mold is made of polystyrene board and includes multiple core mold bodies arranged from top to bottom, with the core mold bodies interlocked and connected.

6. The irregular-shaped hollow wall column formwork structure according to claim 5, wherein: In the adjacent core mold bodies, the upper end face of the lower core mold body is provided with a protrusion, and the lower end face of the upper core mold body is provided with a groove that matches the protrusion.

7. The contoured hollow wall formwork structure of claim 1 or 6, wherein: The outer template is an aluminum template, and the annular clamp is set on the outside of the outer template, including the clamp body and the tie assembly. The clamp body at the external corner is connected by the tie assembly.

8. The irregularly shaped hollow wall column formwork structure according to claim 7, wherein: The clamp body is arranged at intervals on the top and bottom. The tie assembly includes a fixing member, a tie plate, and a tie member. The fixing member is disposed on the outer side of the end of the clamp body. The two ends of the tie plate are respectively connected to the two fixing members. The two tie plates at the external corner are arranged opposite to each other. The tie member passes through the gap between the fixing members and is connected to the tie plate.

9. The irregularly shaped hollow wall column formwork structure according to claim 8, wherein: The fastener has an L-shaped structure, and its two sides are obliquely connected to the outer side of the clamp body. The tie plate is located on the side of the fastener away from the end of the clamp body.

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