Decoration and heat preservation structure integrated prefabricated special-shaped column structure

Abstract

The utility model belongs to the technical field of prefabricated concrete structures and building energy conservation, and discloses a decoration and heat preservation structure integrated prefabricated special-shaped column structure which is composed of a rigid outer plate, a heat preservation core material, a special-shaped column body and a connecting piece. The heat preservation core material is arranged on the outer side surface of the special-shaped column body, the rigid outer plate is arranged on the outer side surface of the heat preservation core material, the connecting piece transversely penetrates through the heat preservation core material, the two ends of the connecting piece extend out of the two sides of the heat preservation core material respectively, one end of the connecting piece is connected with the rigid outer plate in an anchoring mode, and the other end of the connecting piece is connected with the special-shaped column body in an anchoring mode. The connecting piece comprises a first anchoring structure, a connecting column, a second anchoring structure and a positioning ring, and barbs are evenly distributed on the surface of the connecting column in the longitudinal direction of the connecting column. According to the utility model, the integration of decoration, heat preservation and structural functions is realized through the three-layer composite structure, the on-site construction procedures are reduced, the construction period is shortened, the strength is high, the corrosion resistance is good, and the long-term reliability of interlayer connection is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of precast concrete structure and building energy-saving technology, specifically a precast irregular column structure integrating decoration and thermal insulation. Background Technology

[0002] In the process of modern industrialized construction, irregularly shaped columns are widely used because they can optimize the layout of interior spaces. Compared with traditional rectangular columns, their flexible cross-sectional design can reduce the area occupied by the interior, making the layout more transparent, especially suitable for residential buildings, hotels, and other buildings with high space utilization requirements. However, the construction of traditional irregularly shaped columns has obvious drawbacks. Decoration and insulation must be carried out on-site one by one, and the scattered process leads to poor coordination between different trades, reducing construction efficiency. Moreover, on-site manual operation is affected by the environment and the skills of the personnel, which can easily lead to quality problems such as uneven insulation layer thickness and insufficient flatness of the decorative surface. Although some existing precast columns attempt to integrate insulation functions, they mostly adopt the method of pasting insulation and decorative layers afterward. Due to the difference in materials, deformation stress is easily generated under temperature and humidity changes, resulting in interlayer cracks. Long-term use can also lead to problems such as detachment and hollowing, which not only increases maintenance costs but also threatens the safety of buildings and people.

[0003] For example, the patent with publication number CN202221567890.3, entitled "A Precast Irregular Column Structure", only solved the structural stress problem and did not integrate decoration and insulation functions; the patent with publication number CN202320876543.8, entitled "A Precast Column with Insulation Layer", has insufficient reliability in the connection between the insulation layer and the structural layer, and does not have an integrated decorative layer. It still requires on-site facade construction, which increases the construction period and cost. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides an integrated prefabricated irregular column structure for decoration and insulation. Through a three-layer composite structure, it achieves the integration of decoration, insulation and structural functions, reduces on-site construction procedures, shortens the construction period, and has the advantages of high strength, good corrosion resistance, and ensuring long-term reliability of interlayer connections.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A decorative and thermal insulation integrated prefabricated irregular column structure, the integrated prefabricated irregular column structure is composed of a rigid outer panel, thermal insulation core material, irregular column body and connectors;

[0007] The thermal insulation core material is disposed on the outer surface of the irregular column body, the rigid outer plate is disposed on the outer surface of the thermal insulation core material, the connector is transversely inserted inside the thermal insulation core material, and its two ends extend to the outside of both sides of the thermal insulation core material respectively, one end is anchored to the rigid outer plate, and the other end is anchored to the irregular column body.

[0008] The connector includes a first anchoring structure, a connecting column, a second anchoring structure, and a positioning ring. The first anchoring structure is located at the front end of the connecting column and is anchored within the rigid outer plate. The second anchoring structure is located at the rear end of the connecting column and is anchored within the irregular column body. The positioning ring is engaged on the surface of the connecting column, with one side connected to the insulation core material and the other side connected to the irregular column body. The surface of the connecting column is evenly distributed with barbs along its longitudinal direction.

[0009] Preferably, the irregular column body is bound with longitudinal steel bars and stirrups and cast with concrete to form any shape with an L-shaped, T-shaped or cross-shaped cross section.

[0010] Preferably, a sleeve is embedded in the upper part of the beam-column connection area of ​​the irregular column body. One end of the sleeve is connected to the upper anchor bar inside the irregular column body, and the other end is exposed on the outside of the irregular column body for connecting the upper reinforcement of the beam.

[0011] Preferably, the lower part of the beam-column connection area of ​​the irregular column body is pre-set with a tapered threaded hole, which is used for connecting the longitudinal reinforcement of the lower beam.

[0012] Preferably, the irregular column body beam-column connection area is provided with column body groove.

[0013] Preferably, the rigid outer plate is an inorganic composite concrete plate or a UHPC concrete plate with a thickness of 15mm-25mm, a compressive strength ≥100MPa, and a corresponding flexural strength ≥12MPa.

[0014] Preferably, the connector is made of FRP material, and its connecting post is cylindrical with a diameter of 8-15mm and a length that is the same as the thickness of the insulation core material. The first anchoring structure and the second anchoring structure are both designed as cross-shaped dovetail structures, and the maximum diameter of the cross-shaped dovetail structure is greater than the diameter of the connecting post.

[0015] Preferably, the number of connectors is multiple, and the multiple connectors are divided into multiple groups, with no less than six in each group. No less than six connectors are arranged in each square meter of the insulation core material, and the spacing between each connector and the adjacent connector is 400-600mm.

[0016] Preferably, the insulation core material is an insulation board made of XPS insulation material or EPS insulation material, and the insulation board has through holes for installing connectors.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model provides an integrated prefabricated irregular-shaped column structure for decoration and insulation. Through a three-layer composite structure, it achieves integrated decoration, insulation, and structural functions, reducing on-site construction procedures and shortening the construction period. It uses FRP (fiberglass reinforced plastic) connectors to connect the rigid outer panel, insulation core material, and irregular-shaped column body. FRP material has a low thermal conductivity, effectively avoiding thermal bridging, and its high strength and corrosion resistance ensure long-term reliability of interlayer connections. Furthermore, this application employs a process sequence of "first producing the rigid outer panel, then installing the insulation core material, and finally pouring the irregular-shaped column body," ensuring tight adhesion between functional layers and avoiding the risk of later detachment of the rigid outer panel and insulation core material. The rigid outer panel combines decoration and protection, the insulation core material ensures energy-saving effects, and the prefabricated irregular-shaped column body bears the structural load. Each layer has a clear function and works collaboratively, improving the overall performance of the prefabricated component. By adding tapered threaded holes at the lower part of the beam-column connection area of ​​the irregular-shaped column body, the anchorage length of the reinforcing bars is effectively shortened, avoiding the problem of dense reinforcement interference in the core area of ​​the joint. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the side structure of the present invention with the rigid outer plate removed;

[0021] Figure 3 This is a schematic diagram of the external connector structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of this utility model combined with a beam.

[0023] In the diagram: 1. Rigid outer panel; 2. Insulation core material; 3. Irregularly shaped column body;

[0024] 4. Connector; 41. First anchoring structure; 42. Connecting post; 43. Second anchoring structure; 44. Positioning ring; 45. Barb.

[0025] 5. Sleeve; 6. Upper reinforcement; 7. Groove in column body; 8. Tapered threaded hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 3As shown, an integrated prefabricated irregular-shaped column structure with decorative insulation is disclosed. The integrated prefabricated irregular-shaped column structure consists of a rigid outer plate 1, an insulation core material 2, an irregular-shaped column body 3, and a connector 4. The insulation core material 2 is disposed on the outer surface of the irregular-shaped column body 3, the rigid outer plate 1 is disposed on the outer surface of the insulation core material 2, and the connector 4 is transversely inserted inside the insulation core material 2, with its two ends extending to the outer sides of the insulation core material 2 respectively. One end is anchored to the rigid outer plate 1, and the other end is anchored to the irregular-shaped column body 3.

[0028] It should be noted that the integrated prefabricated irregular-shaped column structure of this application is manufactured using an "outer-to-inner" production process. First, the rigid outer panel 1 is fabricated. The FRP connector 4 passes through the through holes in the insulation core material 2 and is anchored into the rigid outer panel 1. Reinforcing bars are then tied to the inside of the insulation core material 2, and concrete is poured to form the prefabricated irregular-shaped column body. The mechanical connection of the three-layer structure through the connector 4 increases the integrity of the three-layer structure. With the help of adhesive, it is molded as a whole, ultimately forming a composite prefabricated column that integrates decoration, insulation, and structure, thereby avoiding the risk of interlayer separation.

[0029] In one embodiment, the rigid outer plate 1 is an inorganic composite concrete plate or a UHPC concrete plate with a thickness of 15mm-25mm, a compressive strength ≥100Mpa, and a corresponding flexural strength ≥12Mpa.

[0030] It should be noted that the rigid outer panel 1, as the outermost structure, can be decorated with textures on its exterior, and has both high durability and decorative properties, reducing the need for later decoration processes, while providing physical protection for the internal structure.

[0031] In one embodiment, the irregularly shaped column body 3 is bound with longitudinal steel bars and stirrups and cast with concrete to form any shape with an L-shaped, T-shaped, or cross-shaped cross section. This application ensures the structural load-bearing performance through the concrete body combined with the steel reinforcement skeleton, and by forming diverse cross sections, it can adapt to different building layout requirements, thereby improving the structural applicability.

[0032] In one embodiment, see Figure 4 As shown, a sleeve 5 is embedded in the upper part of the beam-column connection area of ​​the irregular column body 3. One end of the sleeve 5 is connected to the upper anchor bar 6 inside the irregular column body 3, and the other end is exposed on the outside of the irregular column body 3 for connecting the upper steel bars of the beam.

[0033] It should be noted that by pre-setting a sleeve in the upper part of the beam-column connection area of ​​the irregular column body 3, the mechanical connection between the upper beam reinforcement and the column body can be achieved. Combined with the high strength and micro-expansion characteristics of the grouting material, it can ensure that there is no gap between the reinforcement and the sleeve, and the force is transmitted directly and stably, avoiding the weak points that may occur with traditional binding or welding.

[0034] In one embodiment, see Figure 4 As shown, a tapered threaded hole 8 is pre-set at the lower part of the beam-column connection area of ​​the irregular column body 3, and the tapered threaded hole 8 is used for connecting the longitudinal reinforcement of the lower beam. A column groove 7 is also provided in the beam-column connection area of ​​the irregular column body 3.

[0035] It should be noted that by pre-setting tapered threaded holes 8 at the lower part of the beam-column connection area of ​​the irregular column body, and cooperating with grouting, the mechanical engagement of the threads and the bonding effect of the grouting material provide double protection for the connection strength between the longitudinal reinforcement of the lower beam and the column body. This is especially suitable for joints subjected to vertical loads and horizontal shear forces, improving the overall seismic and shear resistance of the structure. After the grouting material hardens, it has good impermeability and corrosion resistance, which can isolate the steel bars from the erosion of air and moisture, avoid the strength reduction of the connection joint due to corrosion, and extend the service life of the structure.

[0036] It should be noted that the sleeve 5, the tapered threaded hole 8, and the groove 7 in the column body are all pre-reserved in the factory to avoid on-site drilling, welding and other processes, reduce manual operation errors, and reduce construction pollution such as dust and noise.

[0037] In one embodiment, the insulation core material 2 is an insulation board made of XPS insulation material or EPS insulation material, and the insulation board has through holes for installing the connector 4.

[0038] In one embodiment, see Figure 3 As shown, the connector 4 includes a first anchoring structure 41, a connecting column 42, a second anchoring structure 43, and a positioning ring 44. The first anchoring structure 41 is located at the front end of the connecting column 42 and is anchored within the rigid outer plate 1. The second anchoring structure 43 is located at the rear end of the connecting column 42 and is anchored within the irregular column body 3. The positioning ring 44 is engaged with the surface of the connecting column 42, with one side connected to the insulation core material 2 and the other side connected to the irregular column body 3. The surface of the connecting column 42 is evenly distributed with barbs 45 along its longitudinal direction. By providing barbs 45, the connector 4 can be inserted into the insulation layer first, increasing the friction between the connector 4 and the insulation board, thus facilitating construction and installation.

[0039] In one embodiment, the connector 4 is made of FRP material, and its connecting post 42 is cylindrical with a diameter of 8-15mm and a length that is the same as the thickness of the insulation core material 2. The first anchoring structure 41 and the second anchoring structure 43 are both designed as cross-shaped dovetail structures, and the maximum diameter of the cross-shaped dovetail structure is greater than the diameter of the connecting post 42.

[0040] It should be noted that this application enhances the anchoring effect of the connector by setting the shapes of both the first anchoring structure 41 and the second anchoring structure 43 to a cross-shaped dovetail structure; increases the friction by setting a positioning ring; and minimizes the thermal conductivity and reduces thermal bridges while ensuring the tying effect by using FRP material as the whole connector 4. It also has good corrosion resistance, good heat insulation performance, good fatigue resistance, good fire resistance, rust prevention, and high rigidity.

[0041] In one embodiment, the number of connectors 4 is multiple, and the multiple connectors 4 are divided into multiple groups, with no less than six in each group. The number of connectors 4 arranged in each square meter of the insulation core material 2 is no less than six, and the spacing between each connector 4 and the adjacent connector 4 is 400-600mm.

[0042] This application improves the overall connection between the rigid outer panel 1, the thermal insulation core material 2, and the irregular column body 3 by setting the distance between each connector 4 and its adjacent connector 4 to 400-600mm.

[0043] Working principle and process: Through the "outer first, inner last" production process, FRP connector 4 is pre-embedded in the rigid outer panel 1, and then the connector 4 penetrates the insulation core material 2 and is embedded in the concrete of the irregular column body 3. The cross dovetail structure and barbs 45 of the connector 4 form a mechanical interlock with each layer. Combined with the low thermal conductivity and high strength of FRP material, the decorative protection of the rigid outer panel 1, the energy-saving insulation of the insulation core material 2, and the structural stress of the irregular column body 3 are integrated. Each layer works together to improve the comprehensive performance of the precast column.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated irregular-shaped column structure integrating decorative and thermal insulation, characterized in that: The integrated prefabricated irregular column structure consists of a rigid outer plate (1), a thermal insulation core material (2), an irregular column body (3), and connectors (4); The insulation core material (2) is set on the outer surface of the irregular column body (3), the rigid outer plate (1) is set on the outer surface of the insulation core material (2), the connector (4) is transversely inserted into the interior of the insulation core material (2), and its two ends extend to the outside of both sides of the insulation core material (2), one end is anchored to the rigid outer plate (1), and the other end is anchored to the irregular column body (3); The connector (4) includes a first anchoring structure (41), a connecting column (42), a second anchoring structure (43), and a positioning ring (44). The first anchoring structure (41) is located at the front end of the connecting column (42) and is anchored in the rigid outer plate (1). The second anchoring structure (43) is located at the rear end of the connecting column (42) and is anchored in the irregular column body (3). The positioning ring (44) is engaged on the surface of the connecting column (42), with one side connected to the insulation core material (2) and the other side connected to the irregular column body (3). The surface of the connecting column (42) is evenly distributed with barbs (45) along its longitudinal direction.

2. The prefabricated irregular-shaped column structure integrating decorative and thermal insulation structure according to claim 1, characterized in that: The irregular column body (3) is tied with longitudinal steel bars and stirrups and poured with concrete to form any shape with an L-shaped, T-shaped or cross-shaped cross section.

3. The prefabricated irregular-shaped column structure integrating decorative and thermal insulation structure according to claim 2, characterized in that: A sleeve (5) is embedded in the upper part of the beam-column connection area of ​​the irregular column body (3). One end of the sleeve (5) is connected to the upper anchor bar (6) inside the irregular column body (3), and the other end is exposed outside the irregular column body (3) for connecting the upper steel bars of the beam.

4. The prefabricated irregular-shaped column structure integrating decorative and thermal insulation structure according to claim 3, characterized in that: The lower part of the beam-column connection area of ​​the irregular column body (3) is pre-set with a tapered threaded hole (8), which is used for the connection of the longitudinal reinforcement of the lower beam.

5. The prefabricated irregular-shaped column structure integrating decorative and thermal insulation structure according to claim 4, characterized in that: The irregular column body (3) has a column groove (7) in the beam-column connection area.

6. The prefabricated irregular-shaped column structure integrating decorative and thermal insulation structure according to claim 1, characterized in that: The rigid outer plate (1) is an inorganic composite concrete plate or a UHPC concrete plate with a thickness of 15mm-25mm, a compressive strength ≥100Mpa, and a corresponding flexural strength ≥12Mpa.

7. The prefabricated irregular-shaped column structure integrating decorative and thermal insulation structure according to claim 1, characterized in that: The connector (4) is made of FRP material. Its connecting post (42) is cylindrical with a diameter of 8-15mm and a length that is the same as the thickness of the insulation core material (2). The first anchoring structure (41) and the second anchoring structure (43) are both designed as cross-shaped dovetail structures, and the maximum diameter of the cross-shaped dovetail structure is greater than the diameter of the connecting post (42).

8. The prefabricated irregular-shaped column structure integrating decorative and thermal insulation structure according to claim 1, characterized in that: The number of connectors (4) is multiple, and the number of connectors arranged in the area of ​​the insulation core material (2) is not less than six. The interval between each connector (4) and the adjacent connector (4) is 400-600mm.

9. The prefabricated irregular-shaped column structure integrating decorative and thermal insulation structure according to claim 7, characterized in that: The insulation core material (2) is an insulation board made of XPS insulation material or EPS insulation material, and the insulation board has through holes for installing connectors (4).

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