FRP (Fiber Reinforce Plastic) connecting structure of prefabricated thermal insulation wall

Abstract

The utility model relates to the field of constructional engineering, and particularly discloses an FRP connecting structure of a prefabricated thermal insulation wall, the FRP connecting structure comprises a connecting piece and a plurality of anchoring ribs, the connecting piece penetrates through a thermal insulation layer, and the anchoring ribs are arranged at the two ends of the connecting piece in the length direction respectively in a penetrating mode; the two ends of the connecting piece and the anchoring ribs penetrating through the two ends of the connecting piece are poured into the inner wall and the outer wall respectively, the connecting piece can resist shearing force between the layer structures of the thermal insulation wallboard, meanwhile, the anchoring ribs can remarkably improve the pulling resistance between the layer structures, and it is ensured that the layer structures are attached tightly. The heat-conducting plate has the advantages of being low in heat-conducting coefficient, high in shear resistance and convenient and fast to install.

Description

Technical Field

[0001] The present application relates to the field of construction engineering, and in particular to an FRP connection structure of a prefabricated insulation wall. Background Art

[0002] Building energy conservation refers to reducing energy consumption and improving energy efficiency by adopting energy-saving technologies and management measures during the design, construction and use of buildings, thereby reducing the operating costs of buildings and reducing the impact on the environment. Building energy conservation is an important way to achieve sustainable development and is of great significance for saving resources, protecting the environment and reducing greenhouse gas emissions.

[0003] The main measures for building energy conservation include: building planning and design, building materials and structures, and building equipment systems. Among them, the use of efficient thermal insulation materials to improve the performance of the building's envelope structure can effectively reduce the loss and entry of heat. Traditional insulation walls are generally formed by pouring concrete layers on both sides of the insulation layer, and connecting and fixing the insulation layer to the concrete layers on both sides through connectors to form a whole wall panel with an insulation interlayer to improve the insulation effect of the wall.

[0004] Connectors are key components that connect the concrete layer and the insulation layer of prefabricated insulation walls. Their main function is to resist the shear force between the inner and outer concrete layers and the insulation layer, and to form a pull-out resistance to improve the stability and integrity of the wall. However, traditional rod-shaped connectors and plate-shaped connectors have problems of low strength and inconvenient installation. Although stainless steel connectors and truss-type connectors have high connection strength, they are prone to thermal bridges, which affects the thermal insulation effect of the wall. Utility Model Content

[0005] In order to improve the strength of the connecting parts and reduce the thermal conductivity, the present application provides an FRP connection structure of a prefabricated insulation wall, which has the advantages of low thermal conductivity, high shear resistance and easy installation.

[0006] The FRP connection structure of a prefabricated insulation wall provided in this application adopts the following technical solution:

[0007] A FRP connection structure of a prefabricated insulation wall comprises a connection piece and anchor bars, wherein the connection piece vertically penetrates an insulation layer, a plurality of anchor bars are provided and are respectively penetrated at both ends of the connection piece, the two ends of the connection piece penetrated by the anchor bars are respectively cast in an inner page wall or an outer page wall, and the anchor bars are cast in the inner page wall or the outer page wall together, and the connection piece and the anchor bars are both made of FRP material.

[0008] By adopting the above technical scheme, by passing the connector through the insulation layer and casting its two ends in the inner wall and the outer wall respectively, the connector can resist the shear force between the insulation wall panel layer structures, and at the same time the anchor bar can significantly improve the pull-out resistance between the layer structures, ensuring that the layer structures fit tightly, and the two cooperate to form a high-strength, impact-resistant insulation wall panel; and the matching structure of the connector and the anchor bar is simple, the implementation is convenient, and the construction efficiency can be effectively improved; in addition, the connector and anchor bar made of FRP material not only realize the high-strength connection of the prefabricated insulation wall, but also effectively avoid the thermal bridge phenomenon due to the low thermal conductivity of FRP, thereby improving the thermal insulation effect of the wall.

[0009] Optionally, the anchor bars include short anchor bars, the length of the short anchor bars is 30-80 mm, and the short anchor bars are distributed and cast in the inner page wall and the outer page wall.

[0010] By adopting the above technical solution, the design of short anchor bars makes the installation of connectors in the inner and outer walls more convenient. At the same time, the distributed casting of short anchor bars improves the pull-out resistance of the wall and ensures a close fit between the layer structures.

[0011] Optionally, the anchor bars include long anchor bars, the length of the long anchor bars is 300-600 mm, and the long anchor bars are respectively tied and fixed to the steel mesh of the inner page wall and the steel mesh of the outer page wall.

[0012] By adopting the above technical solution, the design of long anchor bars provides higher connection strength, and by binding and fixing with the inner and outer wall steel meshes, the overall stability and shear resistance of the wall are enhanced.

[0013] Optionally, threads are provided on the outer peripheral side of the anchor bar.

[0014] By adopting the above technical solution, the thread design on the outer peripheral side of the anchor bar increases the adhesion with the wall, improves the anchoring effect, and thus enhances the overall structural strength and stability of the thermal insulation wall panel.

[0015] Optionally, the anchoring bars are symmetrically distributed at both ends of the connecting piece.

[0016] By adopting the above technical solution, the symmetrical distribution of the anchor bars at both ends of the connector provides uniform pull-out and shear resistance, ensures balanced stress on the wall structure, and improves the overall stability of the wall.

[0017] Optionally, the side edge of the connecting member extending from the inner page wall to the outer page wall is formed with anti-shear ribs, and the anti-shear ribs are perpendicular to the surface of the connecting member and extend in a direction away from the connecting member.

[0018] By adopting the above technical solution, the shear ribs improve the shear resistance of the connector and enhance the shear strength of the wall.

[0019] Optionally, the cross-section of the combined structure of the connecting member and the anti-shear rib is I-shaped.

[0020] By adopting the above technical solution, the I-shaped structure is stable, and both sides of the connecting piece can obtain a shear-resistant enhancement effect, without distinguishing between the front and back sides, thereby simplifying the construction process.

[0021] Optionally, the connecting parts and anchor bars are produced by pultrusion process.

[0022] By adopting the above technical solution, the pultrusion process has high production efficiency, can realize automated or semi-automated continuous production, the production process is uninterrupted, and can achieve high output and fast delivery; and the fiber content in the pultruded products can be as high as 80%, so that the connectors and anchor bars have high strength and rigidity while remaining light; in addition, the quality of pultrusion products is stable and the utilization rate of raw materials is high.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By inserting the connector through the insulation layer and casting its two ends in the inner wall and the outer wall respectively, the connector can resist the shear force between the insulation wallboard layer structures, and the anchoring bar can significantly improve the pull-out resistance between the layer structures, ensuring that the layer structures are tightly fitted, and the two cooperate to form a high-strength, impact-resistant insulation wallboard; and the matching structure of the connector and the anchoring bar is simple, easy to implement, and can effectively improve the construction efficiency; in addition, the connector and anchoring bar made of FRP material not only realize the high-strength connection of the prefabricated insulation wall, but also effectively avoid the thermal bridge phenomenon due to the low thermal conductivity of FRP, and improve the thermal insulation effect of the wall;

[0025] 2. The thread design on the outer peripheral side of the anchor bar increases the adhesion with the wall and improves the anchoring effect, thereby enhancing the overall structural strength and stability of the insulation wall panel;

[0026] 3. The shear ribs improve the shear resistance of the connector and enhance the shear strength of the wall. The I-shaped structure is stable and both sides of the connector can obtain the shear enhancement effect, without distinguishing between the front and back sides, simplifying the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the construction nodes of an embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the overall structure of the embodiment of the present application using short anchor bars;

[0029] Figure 3 It is a schematic diagram of the overall structure of the embodiment of the present application using long anchor bars.

[0030] Attached figure numbers: 001, insulation layer; 002, inner wall; 003, outer wall; 004, steel mesh; 1, connector; 2, anchor bar; 21, short anchor bar; 22, long anchor bar; 3, shear rib. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application embodiment discloses a FRP connection structure of a prefabricated thermal insulation wall, referring to Figure 1 , including a connecting piece 1 and an anchoring rib 2. The connecting piece 1 is a rectangular plate-shaped structure as a whole. The connecting piece 1 passes through the insulation layer 001 and the surfaces of the two are perpendicular to each other. There are multiple anchoring ribs 2, which are respectively passed through the two ends of the connecting piece 1 in the length direction.

[0033] Among them, the two ends of the connecting member 1 and the anchor bars 2 passing through the ends are cast in the inner page wall 002 and the outer page wall 003 respectively. The setting of the connecting member 1 can resist the shear force between the layer structures of the insulation wall panel. At the same time, the anchor bars 2 can significantly improve the pull-out resistance between the layer structures and ensure that the layer structures are tightly fitted. The two cooperate to form a high-strength, impact-resistant insulation wall panel.

[0034] In this embodiment, the connector 1 and the anchor bar 2 are both made of FRP material. FRP has the high strength of fiber, high rigidity and light weight, and has the characteristics of chemical resistance and corrosion resistance of resin, and has good durability. In addition, the thermal conductivity of FRP material is small, which can effectively avoid the occurrence of thermal bridge phenomenon and further improve the thermal insulation effect of the thermal insulation wallboard.

[0035] Specifically, refer to Figure 1 The anchor bar 2 includes a short anchor bar 21 and a long anchor bar 22. The length of the short anchor bar 21 is 30-80 mm, and the length of the long anchor bar 22 is 300-600 mm. The installation of the short anchor bar 21 is more convenient, while the connection strength of the long anchor bar 22 is higher.

[0036] During the specific construction of the short anchor bar 21, first, in the prefabrication factory, the connector 1 is inserted into the preset opening of the insulation layer 001, and the short anchor bar 21 is respectively installed at the two ends of the connector 1; when the outer page wall 003 is cast in the mold, the insulation layer 001 is laid on the concrete before the concrete solidifies, and the end of the connector 1 and the anchor bar 2 arranged at the end are immersed in the unsolidified concrete, and the concrete is solidified to form the outer page wall 003, and the insulation layer 001 and the outer page wall 003 are fixed; then, the inner page wall 002 is cast on the side of the insulation layer 001 away from the outer page wall 003, and the end of the connector 1 away from the outer page wall 003 and the anchor bar 2 arranged at the end are cast together in the inner page wall 002, so as to form an assembled insulation wall panel with an insulation layer 001.

[0037] During the specific construction of the long anchor bar 22, first install the long anchor bar 22 at one end of the connector 1, and then tie and fix the long anchor bar 22 to the steel mesh 004 of the outer wall 003; then cast the outer wall 003, lay the insulation layer 001 before the concrete solidifies, and pass the connector 1 through the reserved holes in the insulation layer 001; after the laying is completed, the end of the connector 1 away from the outer wall 003 extends from the surface of the insulation layer 001, and then install the long anchor bar 22 to the end of the connector 1 away from the outer wall 003, and tie and fix the long anchor bar 22 to the steel mesh 004 of the inner wall 002, and then cast the inner wall 002 on the side of the insulation layer 001 away from the outer wall 003, and a complete insulation wall panel can be formed after the concrete solidifies.

[0038] The short anchor bars 21 can be directly inserted into the unsolidified concrete, which is convenient to implement and install; while the long anchor bars 22 are tied and fixed to the steel mesh 004, with high connection strength, which can further improve the strength and stability of the insulation wall panel.

[0039] In this embodiment, two anchor bars 2 are respectively arranged at both ends of the connector 1, and the anchor bars 2 at both ends of the connector 1 are symmetrically arranged. In other embodiments, other numbers can also be set as needed. In addition, a plurality of connectors 1 are provided on the insulation layer 001, and the connectors 1 can be evenly arranged in rows and columns on the insulation layer 001, or can be evenly distributed in a staggered manner, and the specific number of settings and distribution density can be adjusted accordingly according to the earthquake resistance level, floor height, etc.

[0040] Further, refer to Figure 1 The outer peripheral side of the anchor bar 2 is provided with an external thread. The thread can increase the bonding force between the anchor bar 2 and the inner wall 002 or the outer wall 003, thereby increasing the anchoring effect of the anchor bar 2 and further improving the strength and stability of the overall structure of the thermal insulation wall.

[0041] Further, refer to Figure 1, shear ribs 3 are formed on both sides of the length direction of the connector 1, and the shear ribs 3 extend perpendicular to the plate surface of the connector 1 in a direction away from the connector 1, and the cross section of the combined structure of the connector 1 and the shear ribs 3 is I-shaped. The shear ribs 3 can significantly improve the shear resistance of the connector 1, further improve the shear strength between the insulation wallboard layer structure, and thus improve the stability of the wallboard; at the same time, the I-shaped structure is stable, and both sides of the connector 1 can obtain the shear reinforcement effect, without distinguishing the front and back sides, simplifying the construction process.

[0042] In addition, in this embodiment, the connector 1 and the anchor bar 2 are both produced by pultrusion. The pultrusion process has high production efficiency, can realize automated or semi-automated continuous production, the production process is uninterrupted, and can achieve high output and fast delivery; and the fiber content in the pultruded product can be as high as 80%, so that the connector 1 and the anchor bar 2 have high strength and rigidity while maintaining light weight; in addition, the pultrusion process products have stable quality and high raw material utilization.

[0043] The implementation principle of the FRP connection structure of a prefabricated thermal insulation wall disclosed in the embodiment of the present application is:

[0044] The connector 1 passes through the insulation layer 001, and its two ends are cast in the inner wall 002 and the outer wall 003 respectively, thereby improving the shear resistance between the layer structures; at the same time, the anchor bars 2 located at the two ends of the connector 1 are cast in the inner wall 002 and the outer wall 003 respectively, and the anchor bars 2 can significantly improve the pull-out resistance between the layer structures, ensuring that the layer structures are tightly fitted; in addition, the setting of the shear ribs 3 can further improve the shear resistance of the connector 1 and further improve the stability of the insulation wall panel.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An FRP connection structure of a prefabricated insulation wall, characterized in that: The invention comprises a connecting piece (1) and an anchoring bar (2), wherein the connecting piece (1) vertically penetrates the thermal insulation layer (001), a plurality of anchoring bars (2) are provided and are respectively penetrated at both ends of the connecting piece (1), and the two ends of the connecting piece (1) penetrated by the anchoring bars (2) are respectively cast in the inner wall (002) or the outer wall (003), and the anchoring bars (2) are cast in the inner wall (002) or the outer wall (003), and the connecting piece (1) and the anchoring bars (2) are both made of FRP material.

2. The FRP connection structure of a prefabricated thermal insulation wall according to claim 1, characterized in that: The anchoring bars (2) include short anchoring bars (21), the length of the short anchoring bars (21) is 30-80 mm, and the short anchoring bars (21) are distributed and cast in the inner wall (002) and the outer wall (003).

3. The FRP connection structure of a prefabricated thermal insulation wall according to claim 1, characterized in that: The anchoring bars (2) include long anchoring bars (22), the long anchoring bars (22) are 300-600 mm long, and the long anchoring bars (22) are respectively tied and fixed to the steel mesh (004) of the inner wall (002) and the steel mesh (004) of the outer wall (003).

4. The FRP connection structure of a prefabricated thermal insulation wall according to claim 1, characterized in that: The outer peripheral side of the anchor bar (2) is provided with a thread.

5. The FRP connection structure of a prefabricated thermal insulation wall according to claim 1, characterized in that: The anchoring bars (2) are symmetrically distributed at both ends of the connecting piece (1).

6. The FRP connection structure of a prefabricated thermal insulation wall according to claim 1, characterized in that: The connecting member (1) is formed with a shear rib (3) on the side extending from the inner wall (002) to the outer wall (003); the shear rib (3) is perpendicular to the surface of the connecting member (1) and extends in a direction away from the connecting member (1).

7. The FRP connection structure of a prefabricated thermal insulation wall according to claim 6, characterized in that: The cross section of the combined structure of the connecting piece (1) and the anti-shear rib (3) is in an I-shape.

8. The FRP connection structure of a prefabricated thermal insulation wall according to claim 1, characterized in that: The connecting piece (1) and the anchor bar (2) are produced by pultrusion technology.

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