Prefabricated sandwich thermal insulation wall and constructional column connecting joint structure and construction method thereof

Abstract

The invention discloses a prefabricated sandwich heat preservation wall and constructional column connecting joint structure. The prefabricated sandwich heat preservation wall is provided with an outer sheet plate, a first heat preservation layer and an inner sheet plate. The constructional column is provided with a connecting table which protrudes towards the side of the prefabricated sandwich heat preservation wall body and is equal to the outer hinge plate in width, and the connecting table and the constructional column are integrally formed in a pouring mode. A concrete connecting layer is poured between the connecting table and the outer hinge plate; a heat preservation inner wall plate is attached to the inner side face of the connecting table, one end of the heat preservation inner wall plate is in butt joint with the constructional column, and the other end of the heat preservation inner wall plate is in butt joint with the first heat preservation layer and the inner sheet plate. The invention further discloses a construction method for connecting the prefabricated sandwich thermal insulation wall and the constructional column. By means of the prefabricated sandwich heat preservation wall and constructional column connecting joint structure and the construction method thereof, the heat preservation and heat insulation performance of a building can be improved, and the use safety of the building can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a prefabricated sandwich insulation wall and structural column connection node structure and a construction method thereof. Background Art

[0002] In recent years, with the rapid advancement of energy conservation and emission reduction work in the country and the rapid development of building energy conservation, passive super-low energy buildings have appeared more and more. Passive super-low energy buildings have higher insulation and heat insulation energy efficiency requirements for exterior walls. For prefabricated passive super-low energy buildings, their exterior walls are generally made of prefabricated sandwich insulation walls. During the construction of prefabricated prefabricated sandwich insulation walls, the prefabricated sandwich insulation walls need to be assembled and connected with the structural columns of the building. The connection between the prefabricated sandwich insulation wall and the structural column surface is very important. If handled well, it can effectively prevent heat loss and temperature fluctuations and maintain the stability of indoor temperature. At present, the prefabricated sandwich insulation wall and the structural column are mainly connected by notch connection, that is, a notch is set on the column surface of the structural column, and then the prefabricated sandwich insulation wall is docked into the notch, and the joints are filled with grouting materials and other methods. Although this method is convenient to construct, there is a problem that the grouting material cannot be filled densely. In addition, as time goes by, water from the exterior wall is prone to penetrate into the wall-column joints, which causes the grouting material to gradually become sandy and loose, affecting the thermal insulation effect at the joints and aggravating the thermal bridge phenomenon at the wall-column nodes. As a result, it cannot meet the requirements of passive super-low energy buildings for exterior wall thermal insulation energy efficiency; at the same time, it will also cause certain structural safety risks.

[0003] Therefore, it is necessary to provide a new prefabricated sandwich insulation wall and structural column connection node structure and its construction method, so that by adopting the connection node structure and construction method, the thermal insulation performance of the building can be improved, and the safety of building use can be improved. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a prefabricated sandwich insulation wall and structural column connection node structure and a construction method thereof. By adopting the connection node structure and construction method, the thermal insulation performance of the building can be improved, and the safety of the building can be improved.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a prefabricated sandwich insulation wall and structural column connection node structure, the prefabricated sandwich insulation wall comprises an outer page plate, a first insulation layer and an inner page plate; the structural column is provided with a connecting platform protruding toward the side of the prefabricated sandwich insulation wall and arranged with the same width as the outer page plate, the connecting platform and the structural column are cast as one piece; a concrete connecting layer is cast between the connecting platform and the outer page plate, a waterstop steel plate is embedded in the concrete connecting layer; an insulation inner wall panel is attached to the inner side surface of the connecting platform, one end of the insulation inner wall panel is connected to the structural column, and the other end of the insulation inner wall panel is connected to the first insulation layer and the inner page plate.

[0006] Furthermore, the thermal insulation inner wall panel comprises a second thermal insulation layer and an inner wall panel fixedly formed as one body, the second thermal insulation layer is of equal thickness to the first thermal insulation layer and is flushly butted, and the inner wall panel is of equal thickness to the inner page panel and is flushly butted.

[0007] Furthermore, the outer page plate extends toward the structural column side beyond the first insulation layer and the inner page plate.

[0008] Furthermore, a polyurethane insulation board is squeezed between the butt ends of the second insulation layer and the first insulation layer, and both ends of the polyurethane insulation board are pressed by the inner wall board and the inner page board respectively.

[0009] Furthermore, a counter-ridge protrusion is provided at the butt end of the inner wall panel and the inner page panel, a groove matching the counter-ridge protrusion is provided on the inner page panel, and grouting material is filled in the joint between the inner wall panel and the inner page panel.

[0010] Furthermore, a weather-resistant adhesive layer is provided at the edge of the joint between the inner wall panel and the inner leaf panel close to the inner side of the wall.

[0011] Furthermore, the length of the concrete connecting layer along the length direction of the wall ranges from 8 to 15 cm.

[0012] Furthermore, the structural column is preset with an installation groove for embedding the thermal insulation inner wall panel, the corresponding end of the thermal insulation inner wall panel is embedded in the installation groove, and adhesive is applied to the fitting part between the thermal insulation inner wall panel and the installation groove.

[0013] Furthermore, the first thermal insulation layer and the second thermal insulation layer are made of the same thermal insulation material.

[0014] A construction method for connecting a prefabricated sandwich insulation wall and a structural column is also provided, which adopts the above-mentioned prefabricated sandwich insulation wall and structural column connection node structure, comprising the following steps:

[0015] S1: When casting the structural column, cast the connecting platform together with the formwork;

[0016] S2: Fix the prefabricated sandwich insulation wall to a position at a set distance from the connection platform;

[0017] S3: pouring concrete connection layer, in which steel formwork is used to complete the formwork;

[0018] S4: Assemble the thermal insulation interior wall panels.

[0019] The beneficial effects of the present invention are as follows:

[0020] The prefabricated sandwich insulation wall and structural column connection node structure provided by the present invention can help improve the thermal insulation performance of the building and can help improve the safety of building use by adopting the connection node structure; specifically, since the structural column is preset with a connection platform that is a cast structure integral with the structural column, the outer page plate and the connection platform are connected by a concrete connection layer, and the concrete connection layer can ensure the connection stability and reliability between the outer page plate and the structural column; at the same time, the concrete connection layer is conducive to ensuring the compactness of the filling construction, and the provision of a water-stop steel plate can effectively ensure the waterproofness of the joint part of the outer side of the wall, effectively Avoid moisture leakage from the outside of the wall, and prevent the sanding and loosening of the grouting material at the joints, which is conducive to improving the safety of use; at the same time, the sanding and loosening of the grouting material will not affect the insulation effect of the joints, which is conducive to improving the thermal insulation performance of the building; the equal width setting of the connecting platform and the outer page plate and the thermal insulation inner wall plate set on the inner side of the connecting platform are conducive to ensuring the uniformity of thermal insulation at the node and avoiding the strong thermal bridge phenomenon at the wall column connection node; the wall column connection node has a good thermal insulation effect and a low risk of being affected by water seepage from the outside of the wall, which is conducive to meeting the requirements of passive super low energy consumption buildings for thermal insulation energy efficiency of external walls;

[0021] The construction method for connecting the prefabricated sandwich insulation wall and the structural column provided by the present invention can help improve the thermal insulation performance of the building and can help improve the safety of building use; at the same time, the construction efficiency is high and the construction quality is good.

[0022] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a cross-sectional structure of an embodiment of the present invention

[0024] Figure 2 for Figure 1 A partial enlarged schematic diagram of point A in the middle

[0025] Figure 3 A schematic diagram of the construction of a concrete connecting layer according to an embodiment of the present invention

[0026] Figure numerals: 1-prefabricated sandwich insulation wall; 101-outer page board; 102-first insulation layer; 103-inner page board; 103a-groove; 2-structural column; 201-connecting platform; 202-installation groove; 3-concrete connecting layer; 4-insulating inner wall panel; 401-second insulation layer; 402-inner wall panel; 402a-anti-ridge protrusion; 5-polyurethane insulation board; 6-grouting material; 7-weather-resistant glue layer; 8-waterstop steel plate; 9-adhesive; 10-steel formwork. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] See also Figure 1-3 In this embodiment, a prefabricated sandwich insulation wall and a structural column connection node structure is disclosed, wherein the prefabricated sandwich insulation wall 1 comprises an outer page plate 101, a first insulation layer 102 and an inner page plate 103, wherein the outer page plate 101 and the inner page plate 103 are generally concrete slabs, and the first insulation layer 102 is generally made of polystyrene board or extruded board, etc., and the existing prefabricated sandwich insulation wall 1 structure is not described in detail here; the structural column 2 is provided with a connecting platform 201 which protrudes toward the side of the prefabricated sandwich insulation wall 1 and is arranged with the same width as the outer page plate 101, and the connecting platform 201 is integrally cast with the structural column 2, and the structural column 2 is generally a reinforced concrete structure, which plays a role in enhancing the integrity and stability of the building, and it can be understood that the height of the connecting platform 201 is the same as that of the outer page plate 101. The heights of the prefabricated sandwich insulation walls 1 are the same; a concrete connection layer 3 is cast between the connection platform 201 and the outer page plate 101, and a waterstop steel plate 8 is pre-embedded in the concrete connection layer 3. Specifically, the waterstop steel plate 8 is arranged at a central position in the width direction of the concrete connection layer 3; it can be understood that during construction, the connection platform 201 is arranged flush with the outer page plate 101; an insulation inner wall panel 4 is attached to the inner side of the connection platform 201, one end of the insulation inner wall panel 4 is connected to the structural column 2, and the other end of the insulation inner wall panel 4 is connected to the first insulation layer 102 and the inner page plate 103; it should be noted that, hereinafter, unless otherwise specified, the side close to the outer page plate 101 is the outer side, and the side close to the inner page plate 103 is the inner side;

[0029] By adopting the above-mentioned connection node structure, it is beneficial to improve the thermal insulation performance of the building and to improve the safety of the building. Specifically, since the structural column 2 is provided with a connection platform 201 which is a cast structure integral with the structural column, the outer page plate 101 is connected to the connection platform 201 through a concrete connection layer 3, and the concrete connection layer 3 can ensure the connection stability and reliability between the outer page plate 101 and the structural column 2. At the same time, the concrete connection layer 3 is conducive to ensuring the compactness of the filling construction, and the water-stop steel plate 8 is provided, so that the waterproofness of the joint part of the outer side of the wall can be effectively guaranteed, and the water on the outside of the wall can be effectively avoided. There will be no leakage, and the grouting material at the joints will not become sandy or loose, which is beneficial to improving safety in use; at the same time, the thermal insulation effect at the joints will not be affected by the sanding and loosening of the grouting material, which is beneficial to improving the thermal insulation performance of the building; the equal width setting of the connecting platform 201 and the outer page plate 101 and the thermal insulation inner wall plate 4 set on the inner side of the connecting platform 201 are beneficial to ensuring the uniformity of thermal insulation at the node and avoiding the occurrence of strong thermal bridges at the wall column connection nodes; the wall column connection nodes have good thermal insulation effect and are less susceptible to water seepage from the outside of the wall, which is beneficial to meeting the requirements of passive super-low energy consumption buildings for thermal insulation energy efficiency of external walls.

[0030] In this embodiment, the thermal insulation inner wall panel 4 includes a second thermal insulation layer 401 and an inner wall panel 402 which are fixedly formed as a whole, the second thermal insulation layer 401 is of equal thickness to the first thermal insulation layer 102 and is flushly connected, and the inner wall panel 402 is of equal thickness to the inner page panel 103 and is flushly connected; specifically, the second thermal insulation layer 401 and the first thermal insulation layer 102 are both made of polystyrene boards, the inner wall panel 402 is a precast concrete panel, and the second thermal insulation layer 401 and the inner wall panel 402 are fixed together with glass fiber connectors to form an integral structure; the thermal insulation inner wall panel 4 in this structural design can be assembled as a whole to ensure construction efficiency; at the same time, the second thermal insulation layer 401 is of equal thickness to the first thermal insulation layer 102 and is flushly connected, and the inner wall panel 402 is of equal thickness to the inner page panel 103 and is flushly connected, which is beneficial to further improve the overall thermal insulation uniformity of the wall surface, reduce the occurrence of thermal bridges, ensure the uniformity of indoor temperature, reduce heat loss, and reduce energy consumption.

[0031] In this embodiment, the outer plate 101 extends to the side of the structural column 2 beyond the first insulation layer 102 and the inner plate 103, that is, it can be understood that the first insulation layer 102 and the inner plate 103 are both shorter than the outer plate 101, so that the inner side surface of the protruding portion of the outer plate 101 can be used as the formwork surface when pouring the concrete connection layer 3, see Figure 3Steel formworks 10 are respectively arranged on both sides of the protruding part of the outer page plate 101 to form a pouring space for the concrete connecting layer 3, which is conducive to the erection and fixation of the pouring formwork; at the same time, the joint positions of the first insulation layer 102, the inner page plate 103 and the insulation inner wall panel 4 can be staggered with the position of the concrete connecting layer 3, thereby improving the structural stability and construction convenience.

[0032] In this embodiment, a polyurethane insulation board 5 is squeezed between the butt ends of the second insulation layer 401 and the first insulation layer 102, and the two ends of the polyurethane insulation board 5 are respectively pressed by the inner wall panel 402 and the inner page panel 103. In this structural design, by arranging the polyurethane insulation board 5, the polyurethane insulation board 5 can integrate the insulation and waterproof functions, reduce the risk of leakage at the inner side joints of the wall, and improve the insulation durability at the inner side joints of the wall.

[0033] In this embodiment, the butt ends of the inner wall panel 402 and the inner page panel 103 are provided with a counter-ridge protrusion 402a, the inner page panel 103 is provided with a groove 103a that cooperates with the counter-ridge protrusion 402a, and the joint between the inner wall panel 402 and the inner page panel 103 is filled with grouting material 6; by providing the counter-ridge protrusion 402a and the groove 103a, the joint area can be increased to form a joint of a fold line structure, and the sealing and connection of the joint can be completed by the grouting material 6; the overall structure is convenient to construct and easy to install, and can also improve the waterproof effect on the inside and enhance the durability of the structure.

[0034] In this embodiment, a weather-resistant adhesive layer 7 is provided at the edge of the joint between the inner wall panel 402 and the inner page panel 103 close to the inner side of the wall. The weather-resistant adhesive layer 7 has good weather aging resistance, excellent high and low temperature resistance, and excellent adhesion. By providing the weather-resistant adhesive layer 7, the durability of the overall structure can be further enhanced.

[0035] In this embodiment, the length of the concrete connecting layer 3 along the length direction of the wall is in the range of 5-10 cm. Within this range, the concrete connecting layer 3 is easy to construct and has good connection strength.

[0036] In this embodiment, the structural column 2 is pre-set with an installation groove 202 for embedding the thermal insulation interior wall panel 4, the corresponding end of the thermal insulation interior wall panel 4 is embedded in the installation groove 202, and the adhesive 9 is applied to the fitting part between the thermal insulation interior wall panel 4 and the installation groove 202; by embedding the thermal insulation interior wall panel 4 into the column body of the structural column 2, the thermal insulation performance of the overall structure can be further enhanced, and at the same time, it is beneficial to ensure the installation stability of the thermal insulation interior wall panel 4; the set adhesive 9 can also improve the waterproofness of the indoor side.

[0037] In this embodiment, the first insulation layer 102 and the second insulation layer 401 are made of the same insulation material; specifically, they are both made of polystyrene boards; by using insulation layers made of the same material, the uniformity of thermal insulation can be ensured, which is beneficial to further reduce the thermal bridge phenomenon at the node position and further improve the thermal insulation performance.

[0038] In this embodiment, a construction method for connecting a prefabricated sandwich insulation wall with a structural column is also disclosed, which adopts the above-mentioned prefabricated sandwich insulation wall and structural column connection node structure, and includes the following steps:

[0039] S1: When casting the structural column, formwork is supported and cast to form the connection platform 201;

[0040] S2: Fix the prefabricated sandwich insulation wall 1 to a position at a set distance from the connecting platform 201;

[0041] S3: pouring concrete connection layer 3, wherein steel formwork 10 is used to complete the formwork;

[0042] S4: Assemble the thermal insulation inner wall panel 4;

[0043] The above construction method can help improve the thermal insulation performance of the building, and can help improve the safety of building use; at the same time, the construction efficiency is high and the construction quality is good; among them, by using the steel formwork 10 to complete the formwork, it is possible to avoid the phenomenon of misalignment due to form expansion, and ensure that the connecting platform 201 and the inner side of the outer page plate 101 can be flush, thereby ensuring the subsequent alignment of the insulation inner wall panel 4 with the inner page plate 103 and the first insulation layer 102, thereby ensuring the alignment of the two insulation layers, facilitating construction and ensuring the uniformity of wall insulation, reducing the risk of thermal bridges; it is also conducive to reducing the risk of leakage.

[0044] Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A prefabricated sandwich insulation wall and structural column connection node structure, characterized in that: The prefabricated sandwich insulation wall (1) comprises an outer page plate (101), a first insulation layer (102) and an inner page plate (103); The structural column (2) is provided with a connecting platform (201) protruding toward the side of the prefabricated sandwich insulation wall (1) and arranged with the same width as the outer page plate (101), and the connecting platform (201) and the structural column (2) are integrally cast and formed; A concrete connection layer (3) is cast between the connection platform (201) and the outer sheet (101), and a water-stop steel plate (8) is pre-embedded in the concrete connection layer (3); A thermal insulation inner wall panel (4) is attached to the inner side surface of the connection platform (201), one end of the thermal insulation inner wall panel (4) is butt-jointed to the structural column (2), and the other end of the thermal insulation inner wall panel (4) is butt-jointed to the first thermal insulation layer (102) and the inner page panel (103).

2. The prefabricated sandwich insulation wall and structural column connection node structure according to claim 1, characterized in that: The thermal insulation inner wall panel (4) comprises a second thermal insulation layer (401) and an inner wall panel (402) fixedly formed as one body, the second thermal insulation layer (401) and the first thermal insulation layer (102) are of equal thickness and are flushly butted, and the inner wall panel (402) and the inner page panel (103) are of equal thickness and are flushly butted.

3. The connection node structure of the prefabricated sandwich insulation wall and the structural column according to claim 2 is characterized by: The outer page plate (101) extends toward the structural column (2) side and is arranged beyond the first thermal insulation layer (102) and the inner page plate (103).

4. The prefabricated sandwich insulation wall and structural column connection node structure according to claim 3, characterized in that: A polyurethane insulation board (5) is extruded between the butt ends of the second insulation layer (401) and the first insulation layer (102), and the two ends of the polyurethane insulation board (5) are respectively pressed by the inner wall board (402) and the inner page board (103).

5. The prefabricated sandwich insulation wall and structural column connection node structure according to claim 4, characterized in that: The butt joint ends of the inner wall panel (402) and the inner page panel (103) are provided with a counter-ridge protrusion (402a), the inner page panel (103) is provided with a groove (103a) matching the counter-ridge protrusion (402a), and the joint between the inner wall panel (402) and the inner page panel (103) is filled with grouting material (6).

6. The prefabricated sandwich insulation wall and structural column connection node structure according to claim 5, characterized in that: A weather-resistant adhesive layer (7) is provided at the edge of the joint between the inner wall panel (402) and the inner leaf panel (103) close to the inner side surface of the wall.

7. The prefabricated sandwich insulation wall and structural column connection node structure according to claim 1, characterized in that: The length of the concrete connecting layer (3) along the length direction of the wall is in the range of 5-10 cm.

8. The prefabricated sandwich insulation wall and structural column connection node structure according to claim 2, characterized in that: The structural column (2) is pre-arranged with an installation groove (202) for embedding the thermal insulation inner wall panel (4); the corresponding end of the thermal insulation inner wall panel (4) is embedded in the installation groove (202), and an adhesive (9) is applied to the fitting portion between the thermal insulation inner wall panel (4) and the installation groove (202).

9. The prefabricated sandwich insulation wall and structural column connection node structure according to claim 2, characterized in that: The first thermal insulation layer (102) and the second thermal insulation layer (401) are made of the same thermal insulation material.

10. A construction method for connecting a prefabricated sandwich insulation wall and a structural column, using the prefabricated sandwich insulation wall and structural column connection node structure as described in any one of claims 1 to 9, characterized in that: The steps include: S1: When casting the structural column, the connecting platform (201) is cast together with the formwork; S2: fixing the prefabricated sandwich insulation wall (1) to a position at a set distance from the connecting platform (201); S3: pouring a concrete connection layer (3), wherein a steel formwork (10) is used to complete the formwork; S4: Assemble the thermal insulation inner wall panels (4).

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