CN205399731U - Assembled reinforced concrete wall structure based on heat channel cuts off technique - Google Patents

Abstract

The utility model discloses an assembled reinforced concrete wall structure based on heat channel cuts off technique, including side fascia, wallboard intermediate level, interior wallboard and truss, wall body outside -in is side fascia, wallboard intermediate level and interior wallboard respectively, constitutes sandwich structure, the chord member of truss is buried underground respectively in side fascia and interior wallboard, and the web member of truss runs through wallboard intermediate level and both ends connects chord member and the chord member in the interior wallboard in the side fascia respectively, be equipped with the web member connecting piece that is used for cutting off the heat channel between side fascia and the interior wallboard on the web member of truss. Have advantages such as the heat channel of wall, structure and function are integrated, the wholeness is good, compensatied the not enough of current assembled concrete panel system, have the economy and the social of preferred.

Description

Prefabricated reinforced concrete wall structure based on thermal bridge partition technology

technical field

The utility model relates to the technical field of building wall structures, in particular to an assembled reinforced concrete wall structure based on thermal bridge partition technology.

Background technique

The total energy consumption of buildings accounts for a relatively large proportion in the national economy, and the operational energy consumption of buildings in the use phase is the largest part of the total energy consumption of buildings. Due to the discontinuity of material thermal properties, material non-uniformity, geometric conditions, etc., some parts become areas with relatively dense heat flow and low (or high) inner surface temperature. This area has obvious multi-dimensional heat conduction. The characteristic thermal bridge—the main channel of heat exchange; the existence of the thermal bridge increases the local heat transfer of the wall, reduces the average thermal resistance of the building, increases the energy consumption of the building, and causes condensation, mildew and other phenomena. Therefore, the building envelope performance is the key to building energy efficiency.

At present, building industrialization has been rapidly promoted due to its "five integration" advantages, but prefabricated walls also face the thermal bridge problem of traditional walls, and the existing prefabricated concrete wall technology cannot eliminate thermal bridges. secondary problems, thus limiting its scope of application. In view of the above problems, it is necessary to develop a prefabricated reinforced concrete wall based on thermal bridge isolation technology.

Utility model content

Aiming at the defects existing in the prior art, the purpose of this utility model is to provide a prefabricated reinforced concrete wall based on thermal bridge isolation technology, which has the advantages of insulating thermal bridges, integrating structure and function, and good integrity, so as to solve the current problems. There is the thermal bridge problem of the traditional wall faced by the prefabricated assembly wall, and the existing prefabricated concrete wall technology cannot eliminate the secondary problems caused by the thermal bridge, thus limiting the technical problem of its application range.

In order to achieve the above technical purpose, the technical solution of the utility model patent is: a prefabricated reinforced concrete wall structure based on the thermal bridge partition technology, including the outer wall panel, the middle layer of the wall panel, the inner wall panel and the truss; the wall is composed of From the outside to the inside, there are outer wall panels, middle layers of wall panels and inner wall panels, forming a sandwich structure; the chords of the trusses are buried in the outer wall panels and the inner wall panels respectively, and the webs of the trusses run through the middle layer of the wall panels and the two ends are respectively Connect the chord in the outer wall panel and the chord in the inner wall panel; on the web of the truss, there is a web connecting piece for cutting off the thermal bridge between the outer wall panel and the inner wall panel.

Further, the middle layer of the wall panel is provided with tie ribs for respectively tying the chord and web connectors in the outer wall panels and the chord and web connectors in the inner wall panels; The web connection forms the web of the truss; the part of the tie tendon inside the web connection has a central cut-off for thermal bridge insulation.

Further, the tie bars are made of high-strength threaded steel bars or smooth round steel bars, and one end of the tie bars is constructed with an upset structure.

Further, the web connecting piece includes a sleeve set outside the middle section of the tie bar, a steel bar fixing member for fixing the position of the tie bar in the sleeve and preventing the tie bar from contacting the sleeve, filling It is located in the inner cavity of the sleeve and is used to cut off the cementitious material that binds the tie-tie together from the middle of the tie-tie, and is provided at the end of the sleeve to prevent the leakage of the cementitious material and the infiltration of external erosive media. pieces.

Further, the radial dimension of the sleeve gradually decreases from the middle to both ends.

Further, the sleeve adopts an integral spindle-shaped sleeve; or the sleeve adopts two semi-spindle-shaped sleeves and is screwed into one body.

Further, the exterior wall panels and interior wall panels are provided with long longitudinal reinforcements arranged in the vertical direction and used as truss chords; the long longitudinal reinforcements in the exterior wall panels, the long longitudinal reinforcements in the interior wall panels and the The rods form a planar steel mesh sheet.

Further, the exterior wall panels and/or interior wall panels are also provided with transverse steel bars arranged in the horizontal direction; the transverse steel bars, the long longitudinal bars in the exterior wall panels, the long longitudinal bars in the interior wall panels, and the webs constitute Space reinforced grid.

Further, the middle layer of the wall panel adopts the cast-in-place concrete pouring layer to form a prefabricated reinforced concrete shear wall with relatively large bearing capacity; or the middle layer of the wall panel adopts a filling layer of thermal insulation material to form a prefabricated steel bar that meets the requirements of thermal insulation and energy saving. Concrete insulation walls.

Further, there are multiple sets of trusses, and multiple sets of trusses are arranged parallel to each other and at intervals.

Prefabricated reinforced concrete walls based on thermal bridge partition technology, including exterior wall panels, interior wall panels, middle layers of wall panels, trusses, transverse reinforcement, long longitudinal reinforcement, web connection pieces, tie bars, sleeves, ends Head seals, rebar fixtures, trusses, cementitious materials. The tie bars are fixed in the sleeve through the steel bar fixing piece, and the cement material is injected into the sleeve, and the two ends of the sleeve are sealed by the end seal, thus forming the web connection piece. The trusses are composed of long longitudinal reinforcements and web connection pieces, and the steel space grids of inner wall panels and outer wall panels are formed by transverse steel bars and trusses. By pouring concrete, it can be prepared as an outer wall panel and an inner wall panel, and the space between the two is the middle layer of the wall panel. The prefabricated reinforced concrete wall that meets the structural or thermal insulation requirements can be prepared by cast-in-place concrete or filled with thermal insulation materials in the middle layer of the wall panels. The utility model has the advantages of thermal bridge insulation, structure and function integration, good integrity, etc., makes up for the deficiencies of the existing assembled concrete wall panel system, and has better economic and social benefits.

Further, the two tie bars are fixed to the end of the sleeve through the steel bar fixing piece, the cement material is injected into the sleeve, and the two ends of the sleeve are sealed by the end seals, thus forming the web connection piece. The long longitudinal bars and transverse bars are connected to each other to form the planar reinforcement mesh in the inner wall panel and the outer wall panel. , so the long longitudinal bars, transverse bars and web bar connectors together form the space steel grid frame of the wall. The outer and inner wall panels of the wall can be prepared by pouring concrete on both sides of the steel grid frame in the space of the wall. The space between the outer wall panels and the inner wall panels is the middle layer of the wall panels, thereby preparing a sandwich structure. Prefabricated concrete walls. According to the structural and functional requirements of the building on site. The middle layer of the wall panel can be cast-in-situ concrete or filled with thermal insulation material to prepare a reinforced concrete laminated shear wall or thermal insulation wall. The utility model has the advantages of thermal bridge insulation, structure and function integration, good integrity, etc., makes up for the deficiencies of the existing assembled concrete wall panel system, and has better economic and social benefits.

Further, the web rod connector is composed of tie bars, steel bar fixing parts, sleeves, cementitious materials, and end seals, and its structure is fixed to the end of the sleeve by using steel bar fixing parts through two tie bars, Cementitious material is injected into the sleeve and the two ends of the sleeve are sealed by end seals. The web connection piece connects the long longitudinal bars on the inner wall panel and the outer wall panel through tie bars to form a truss, and together with the full length longitudinal bars and transverse bars, it forms the space steel grid frame of the wall.

Furthermore, the tie bars are high-strength threaded steel bars or smooth round steel bars, one end of which is upset, so that the upset end can be used to anchor the cementitious material to play the role of force transmission and connection.

Further, the sleeve is a spindle-shaped cylinder device made of one or more of metal, organic plastic, resin, high molecular polymer, and fiber composite material. The sleeve can be a single integral spindle-shaped cylinder device, or two semi-spindle-shaped cylinder devices connected by a threaded thread in the middle. The sleeve is mainly used to connect tie bars, steel bar fixings, cementitious materials, and end seals as a whole to play the role of restraint and load transfer.

Further, the steel bar fixing piece is an element with low thermal conductivity made of one or more of organic plastics, resins, high molecular polymers, and fiber composite materials, and is mainly used to fix the position of the tie bars in the sleeve and Avoid contact between tie bars and sleeves, thermal bridge isolation, and position limitation.

Further, the cementitious material is one or more of high-strength micro-expansion cement grout, epoxy resin, high-strength micro-expansion dry-mixed mortar, and polymer mortar. It is mainly used to pour into the sleeve, and anchor the upsetting tie bars after hardening, so as to realize the functions of transferring load and insulating thermal bridge.

Further, the end seal is one or more of EPDM seals, NBR seals, neoprene seals, silicone seals, rubber-plastic seals and plastic seals . It is used to avoid the leakage of the cementitious material slurry during the process of pouring the cementitious material and to block the infiltration of the external erosive medium.

Furthermore, the truss is a three-dimensional space grid structure or a two-dimensional plane grid structure composed of long longitudinal ribs and web rod connectors. It mainly plays the role of supporting, transferring loads, connecting inner wall panels and outer wall panels, and uniformly distributing stress.

Furthermore, the middle layer of the wall panel is located between the inner wall panel and the outer wall panel, and can be prepared by pouring in-situ concrete to form a prefabricated reinforced concrete shear wall with a large bearing capacity, and can also be filled with thermal insulation materials to meet the requirements of thermal insulation and energy saving. Prefabricated reinforced concrete insulation wall.

The beneficial technical effect of the utility model is:

1. Compared with the traditional construction technology, the utility model belongs to the prefabricated concrete wall in the construction industrialization technology. It has the advantages of environmental protection, high degree of mechanization, good quality, controllable cost and sustainable development, and has huge advantages. Economic, environmental and social benefits.

2. The utility model has the advantages of insulating thermal bridges, integrating structure and function, and good integrity. It cuts off the thermal bridges between the inner and outer wall panels, makes up for the shortcomings of the existing prefabricated concrete wall panel system, and contributes to the promotion of building industrialization. Technological development has far-reaching implications.

Below in conjunction with accompanying drawing, the utility model is further described.

Description of drawings

Fig. 1 is the structural representation of the fabricated reinforced concrete wall body based on thermal bridge partition technology of the utility model embodiment;

Fig. 2 is the cross-sectional schematic diagram of the assembled reinforced concrete wall based on the thermal bridge partition technology of the utility model embodiment;

Fig. 3 is the schematic diagram of the planar truss structure of the present utility model;

Fig. 4 is a schematic cross-sectional view of the truss of Fig. 3;

Fig. 5 is a schematic diagram of a triangular space truss structure of the present invention;

Fig. 6 is a schematic cross-sectional view of the truss of Fig. 5;

Fig. 7 is a sectional view of the web bar connector of the present invention;

Fig. 8 is a sectional view of a single integral spindle-shaped sleeve of the present utility model;

Fig. 9 is a sectional view of two semi-spindle sleeves of the present invention.

illustration:

1. Exterior wall panels; 2. Interior wall panels; 3. Middle layer of wall panels; 4. Trusses; Sleeve; 10. End seal; 11. Steel bar fixing piece; 12. Cementitious material.

detailed description

Below is a further description of the technical content of the present utility model, but not a limitation to the essential content of the present utility model.

Fig. 1 is the structural schematic diagram of the fabricated reinforced concrete wall body based on the thermal bridge partition technology of the embodiment of the present invention; Fig. 2 is the cross-sectional schematic diagram of the fabricated reinforced concrete wall body based on the thermal bridge partition technology of the utility model embodiment; Fig. 3 is a schematic diagram of the plane truss structure of the present utility model; Fig. 4 is a schematic cross-sectional view of the truss of Fig. 3; Fig. 5 is a schematic view of the triangular space truss structure of the present utility model; The sectional view of the web rod connector of the utility model; FIG. 8 is a sectional view of a single integral spindle-shaped sleeve of the utility model; FIG. 9 is a sectional view of two semi-spindle-shaped sleeves of the utility model.

As shown in Figure 1, the prefabricated reinforced concrete wall structure based on thermal bridge isolation technology in this embodiment includes an outer wall panel 1, a wall panel middle layer 3, an inner wall panel 2, and a truss 4; The outer wall panel 1, the middle layer of wall panels 3 and the inner wall panel 2 constitute a sandwich structure; the chords of the trusses 4 are buried in the outer wall panels 1 and the inner wall panels 2 respectively, and the webs of the trusses 4 run through the middle layer of the wall panels 3 and the two ends are respectively connected to the chord in the exterior wall panel 1 and the chord in the interior wall panel 2; the web of the truss 4 is provided with a web for cutting off the thermal bridge between the exterior wall panel 1 and the interior wall panel 2 Rod connector 7.

As shown in Figures 1, 2, 3, 4, 5, 6 and 7, in this embodiment, the middle layer 3 of the wall panel is provided with connecting parts 7 for connecting the chord and the web in the outer wall panel 1 and Tie the tie tendons 8 of the chord and web connecting piece 7 in the inner wall panel 2 . The tie bars 8 and the web connecting piece 7 constitute the web of the truss 4 . The part of the tie tie 8 inside the web connection part 7 has a central cut-off for thermal bridge insulation.

As shown in Figures 5, 6 and 7, in this embodiment, the tie bars 8 are high-strength threaded steel bars or smooth round steel bars. One end of the tie bar 8 adopts an upsetting structure.

As shown in Figures 1, 2, 3, 4, 5, 6, and 7, in this embodiment, the web connection piece 7 includes a sleeve 9 that is sleeved outside the middle section of the tie bar 8 for fixing the tie bar. The position of the tie bar 8 in the sleeve 9 and the steel bar fixing part 11 that prevents the tie bar 8 from contacting the sleeve 9 is filled in the inner cavity of the sleeve 9 and is used to cut off the tie bar 8 from the middle of the tie bar 8. The cemented material 12 connected together and the end seal 10 arranged at the end of the sleeve 9 are used to prevent the leakage of the cemented material 12 and the infiltration of external erosive media.

As shown in Fig. 5, 6, 7, 8 or 9, in this embodiment, the radial dimension of the sleeve 9 gradually decreases from the middle to both ends.

In this embodiment, as shown in FIG. 8 , the sleeve 9 adopts an integral spindle-shaped sleeve. As shown in FIG. 9 , the sleeve 9 adopts two semi-spindle-shaped sleeves and is screwed into one body.

As shown in Figures 1, 2, 3 and 4, in this embodiment, the outer wall panel 1 and the inner wall panel 2 are provided with long longitudinal ribs 6 arranged in the vertical direction and used as chords of the truss 4 . The long longitudinal ribs 6 in the outer wall panel 1, the long longitudinal ribs 6 in the inner wall panel 2 and the web members form a planar reinforcement mesh. The utility model utilizes the long longitudinal bars, longitudinal bars and web bar connectors to form a three-dimensional space grid structure inside the wall, which improves the integrity, shock resistance and coordination of the wall, so that the wall can meet the requirements of anti-seismic fortification in the buildings.

As shown in FIGS. 5 and 6 , in this embodiment, the outer wall panel 1 and/or the inner wall panel 2 are also provided with transverse steel bars 5 arranged in the horizontal direction. The transverse steel bars 5, the long longitudinal bars 6 in the outer wall panels 1, the full length longitudinal bars 6 in the inner wall panels 2, and the webs form a space steel bar grid.

In this embodiment, the middle layer 3 of the wall panel adopts the cast-in-place concrete pouring layer to form a prefabricated reinforced concrete shear wall with relatively large bearing capacity; Prefabricated reinforced concrete insulation wall. The utility model can also prepare a prefabricated reinforced concrete laminated wall structure with heat preservation function by filling the middle layer of the wallboard with heat preservation material according to the requirement of heat preservation and energy saving, thereby improving the application range of the prefabricated concrete multifunctional composite wall .

As shown in FIGS. 1 and 2 , in this embodiment, there are multiple sets of trusses 4 . Multiple sets of trusses 4 are arranged parallel to each other and at intervals.

During implementation, the prefabricated reinforced concrete wall based on thermal bridge partition technology includes exterior wall panel 1, interior wall panel 2, wall panel middle layer 3, truss 4, transverse reinforcement 5, long longitudinal reinforcement 6, and web connection pieces 7. Tendons 8, sleeves 9, end seals 10, steel bar fixings 11, and cementitious materials 12. As shown in Figure 1, the long longitudinal bars 6 and the transverse bars 5 are connected to each other to form the planar reinforcement mesh in the inner wall panel 2 and the outer wall panel 1, and the web connecting piece 7 is connected to the inner wall panel 2 through tie bars 8 The truss 4 is formed with the long longitudinal bars 6 on the outer wall panel 1, so the long longitudinal bars 6, the transverse bars 5 and the web connectors 7 jointly form the space steel grid frame of the wall. The outer wall panel 1 and the inner wall panel 2 of the wall can be prepared by pouring concrete on both sides of the steel grid frame in the space of the wall, and the space between the outer wall panel 1 and the inner wall panel 2 is the wall panel middle layer 3, so that the outer wall panel 1 and the inner wall panel 2 can be prepared. A prefabricated concrete wall with a sandwich structure is prepared. As shown in Figure 2, the exterior wall panel 1 and the interior wall panel 2 contain full-length longitudinal bars 6 and transverse bars 5, and the full-length longitudinal bars 6 and transverse bars 5 overlap each other to form a planar steel mesh inside the wall. 2 and the long longitudinal ribs 6 in the exterior wall panel 1 are connected as a whole through the tie bars 8 on the web connecting piece 7, and the whole wall is a sandwich structure, which is respectively the exterior wall panel 1 and the middle layer of the wall panel from the outside to the inside. 3 and interior wall panel 2. As shown in Figures 3, 4, 5 and 6, the long longitudinal ribs 6 on the inner wall panel 2 and the outer wall panel 1 are connected to the integrated truss 4 through the tie bars 8 on the web connector 7 . According to the wall structure requirements, the truss 4 can be designed as a planar truss, as shown in Figures 3 and 4; it can also be designed as a triangular space truss, as shown in Figures 5 and 6. The outer wall panel 1 and the inner wall panel 2 can be integrated by using the truss 4, so as to prepare a wall structure with better seismic performance and overall performance. As shown in Figures 4 and 6, the truss 4 is connected as a whole by utilizing the long longitudinal ribs 6 and the tie ribs 8 on the web connector 7. The tendons 8 on the web connecting member 7 are bonded together through the cement material 12 in the sleeve 9, so the truss 4 has the ability to meet the structural bearing capacity and cut off the thermal bridge requirements. As shown in Figure 7, the tie bars 8 are fixed in the sleeve 9 through the steel bar fixing member 11, and the inside of the sleeve 9 is filled with a cementitious material 12, and the end of the sleeve 9 is sealed by placing a terminal seal 10, In order to prevent the leakage of the gelling material 12 and the infiltration of external erosive media. There is a certain distance between the two tie bars 8 in the sleeve 9 to prevent the formation of thermal bridges, and a connection device with the function of thermal bridge isolation is formed between the tie bars 8 , the sleeve 9 and the cementitious material 12 . The web connecting piece 7 connects the long longitudinal bars 6 on the inner wall panel 2 and the outer wall panel 1 through tie bars 8 to form a truss 4, and together with the long longitudinal bars 6 and the transverse bars 5, forms the wall space Reinforced grid. As shown in Figure 8, the sleeve 9 may be a single integral spindle-shaped sleeve. As shown in FIG. 9 , the sleeve 9 can also be two semi-spindle-shaped sleeves that are screwed into one body. The sleeve 9 is a spindle-shaped cylindrical device made of one or more of metal, organic plastic, resin, high molecular polymer, and fiber composite material. As shown in FIG. 8 , the sleeve 9 can be a single integral spindle-shaped cylinder device. As shown in FIG. 9, two semi-spindle-shaped cylinder devices are helically connected by a central thread. The sleeve 9 is mainly used to connect the tie bar 8, the steel bar fixing part 11, the cementitious material 12, and the end sealing part 10 as a whole, so as to restrain and transmit loads.

The utility model is also characterized in that the tie bar 8 is a high-strength threaded steel bar or a smooth round steel bar, and one end of it is upset, so that the upset end can be used to anchor the cementitious material 12 to play the functions of force transmission and connection, and pull The ribs 8 are mainly used to connect the long longitudinal ribs 6 on the inner wall panel 2 and the outer wall panel 1 , so as to form the inner wall panel 2 and the outer wall panel 1 as a whole.

The utility model is also characterized in that the steel bar fixing part 11 is an element with low thermal conductivity made of one or more of organic plastics, resins, high molecular polymers, and fiber composite materials, and is mainly used to fix the tie bars 8 in the The position in the sleeve 9 avoids contact between the tie bars 8 and the sleeve 9, etc., and plays the roles of isolating thermal bridges and limiting positions.

The utility model is also characterized in that the cementitious material 12 is one or more of high-strength micro-expansion cement grouting material, epoxy resin, high-strength micro-expansion dry-mixed mortar, and polymer mortar, and is mainly used for pouring into the sleeve 9 After hardening, the upsetting tie bars 8 are anchored to achieve the functions of transferring loads and insulating thermal bridges.

The utility model is also characterized in that the end seals 10 are EPDM seals, NBR seals, neoprene seals, silica gel seals, rubber-plastic seals and plastic seals. One or more types are used to avoid slurry leakage during pouring of the cementitious material 12 and to block the infiltration of external erosive media.

The utility model is also characterized in that the truss 4 is a three-dimensional space grid structure or a two-dimensional plane grid structure composed of long longitudinal ribs 6 and web rod connectors 7, which mainly play a role in supporting, transferring loads, and connecting the inner wall panels 2 and Exterior wall panel 1 and other functions.

The utility model is also characterized in that the wall panel middle layer 3 is located between the inner wall panel 2 and the outer wall panel 1, and can be prepared by pouring-in-place concrete to form a prefabricated reinforced concrete shear wall with relatively large bearing capacity, and can also be filled with insulation The material is used to prepare a prefabricated reinforced concrete insulation wall that meets the needs of thermal insulation and energy saving.

During implementation, the long longitudinal bars 6, the web bar connectors 7, and the transverse bars 5 first form a steel bar space grid structure, and concrete is poured on both sides of the steel bar grid to prepare the inner wall panel 2 and the outer wall panel 1. According to the wall structure and functional requirements, cast-in-place concrete in the middle layer 3 of the wall panel is prepared to prepare a prefabricated reinforced concrete shear wall with a large bearing capacity, and it can also be filled with thermal insulation materials to prepare prefabricated steel bars that meet the requirements of thermal insulation and energy saving Concrete insulation walls. The utility model has the advantages of thermal bridge insulation, structure and function integration, good integrity, etc., makes up for the deficiencies of the existing assembled concrete wall panel system, and has better economic and social benefits.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Any equivalent structural transformation made by using the content of the utility model description, or directly or indirectly used in other related technical fields, shall be In the same way, it is included in the patent protection scope of the present utility model.

Claims (10)

1. A prefabricated reinforced concrete wall structure based on thermal bridge partition technology, characterized in that it comprises an outer wall panel (1), a wall panel middle layer (3), an inner wall panel (2) and a truss (4); From outside to inside, the wall consists of the outer wall panel (1), the middle layer of the wall panel (3) and the inner wall panel (2), forming a sandwich structure; the chords of the trusses (4) are respectively embedded in the outer wall panel (1) and the In the inner wall panel (2), the web of the truss (4) runs through the middle layer of the wall panel (3) and the two ends are respectively connected to the chords in the outer wall panel (1) and the chords in the inner wall panel (2); The web of the truss (4) is provided with a web connecting piece (7) for cutting off the thermal bridge between the outer wall panel (1) and the inner wall panel (2). 2. The prefabricated reinforced concrete wall structure based on thermal bridge isolation technology according to claim 1, characterized in that, the middle layer of the wall panel (3) is provided with a chord for respectively pulling the inner wall panel (1). The tie bar (8) of the chord and the web bar connector (7) in the rod and the web bar connector (7) and the tie inner wall panel (2); the tie bar (8) and the web bar connector ( 7) The web constituting the truss (4); the part of the tie bar (8) inside the web connector (7) has a cut-off in the middle for thermal bridge isolation. 3. the prefabricated reinforced concrete wall structure based on thermal bridge partition technology according to claim 2, is characterized in that, tie bar (8) adopts high-strength threaded steel bar or smooth round steel bar, tie bar (8) One end is constructed with an upset structure. 4. The prefabricated reinforced concrete wall structure based on thermal bridge isolation technology according to claim 2, characterized in that, the web bar connector (7) includes a set outside the middle section of the tie bar (8). Sleeve (9), steel bar fixing piece (11) for fixing the position of the tie bar (8) in the sleeve (9) and avoiding the contact between the tie bar (8) and the sleeve (9), filled in the sleeve The inner cavity of the tube (9) is used to cut off the cementitious material (12) that bonds the tie bars (8) together from the middle of the tie bars (8) and is arranged at the end of the sleeve (9) to prevent glue The end seal (10) that prevents the leakage of condensate material (12) and the infiltration of external erosive medium. 5. The prefabricated reinforced concrete wall structure based on thermal bridge isolation technology according to claim 4, characterized in that the radial dimension of the sleeve (9) gradually decreases from the middle to both ends. 6. The prefabricated reinforced concrete wall structure based on thermal bridge isolation technology according to claim 4, characterized in that the sleeve (9) adopts an integral spindle-shaped sleeve; or the sleeve (9) adopts two and a half The spindle-shaped sleeve is fixed as a whole by threads. 7. The prefabricated reinforced concrete wall structure based on thermal bridge isolation technology according to any one of claims 1 to 6, characterized in that, the outer wall panel (1) and the inner wall panel (2) are provided with along The long longitudinal reinforcement (6) arranged in the vertical direction and used as the chord of the truss (4); the long longitudinal reinforcement (6) in the outer wall panel (1), the long longitudinal reinforcement (6) in the inner wall panel (2) 6) and the webs form a planar steel mesh. 8. The prefabricated reinforced concrete wall structure based on thermal bridge isolation technology according to claim 7, characterized in that, the outer wall panels (1) and/or inner wall panels (2) are also provided with horizontally arranged transverse reinforcement (5); transverse reinforcement (5), long longitudinal reinforcement (6) in the exterior wall panel (1), long longitudinal reinforcement (6) in the interior wall panel (2) and web members constitute space reinforcement grid. 9. The fabricated reinforced concrete wall structure based on thermal bridge isolation technology according to any one of claims 1 to 6, characterized in that, the wall panel middle layer (3) adopts cast-in-place concrete pouring layer to form a relatively A prefabricated reinforced concrete shear wall with a large bearing capacity; or the middle layer (3) of the wall panel adopts a filling layer of thermal insulation material to form a prefabricated reinforced concrete thermal insulation wall that meets the requirements of thermal insulation and energy saving. 10. The prefabricated reinforced concrete wall structure based on thermal bridge isolation technology according to any one of claims 1 to 6, characterized in that there are multiple groups of trusses (4), and multiple groups of trusses (4) are parallel to each other And arranged at intervals.