Assembled ultra-low energy consumption prefabricated panels

Abstract

The invention discloses an assembled ultra-low energy consumption prefabricated panel, which relates to the technical field of assembled building. The panel is formed by splicing a first outer prefabricated panel, an inner prefabricated panel and a second outer prefabricated panel by adopting a concave-convex structure. The first outer prefabricated panel, the inner prefabricated panel and the second outer prefabricated panel are all provided with a splicing steel frame with the same structure. The splicing steel frame includes a fixing plate arranged at both ends of the inner prefabricated panel. The fixing plate is in the shape of a long strip and is respectively erected on two edges in the height direction of the end faces of the two ends of the inner prefabricated panel. The fixing plate is provided with corresponding through holes. The first outer prefabricated panel, the inner prefabricated panel and the second outer prefabricated panel are fastened by bolts by means of the fixing plate. The structure is a multi-section assembled prefabricated wall, and an assembled steel frame that is easy to assemble is provided, thereby reducing the size of the single body of the prefabricated wall and facilitating transportation and hoisting. At the same time, the assembled steel frame provides great convenience for assembly at the construction site, and at the same time, the assembled steel frame further strengthens the strength of the entire prefabricated wall.

Description

Technical Field

[0001] The invention relates to the technical field of assembled buildings, and in particular to an assembled ultra-low energy consumption prefabricated panel. Background Art

[0002] The existing wall and roof panel connection nodes are not reliable. Due to the limitations of building height and span, the panels themselves have low strength, are water permeable and have poor durability, and cannot meet the energy-saving requirements of ultra-low energy consumption buildings. The gap treatment method is hard bonding, which is prone to cracking and affects sound insulation and air tightness. The internal and external connecting components have no broken bridge treatment, which reduces the service life of the structural components. Summary of the invention

[0003] In order to solve the above problems, the present invention provides an assembled ultra-low energy consumption prefabricated panel, which adopts a split prefabrication and on-site assembly method, is fixed to each other by splicing steel frames, and multi-layer filling is performed at the splicing seams. All technical components adopt a broken bridge structure, which effectively meets the energy-saving requirements of ultra-low energy consumption buildings.

[0004] The technical solution adopted by the present invention is to provide an assembled ultra-low energy consumption prefabricated panel, which is formed by splicing a first outer prefabricated panel, an inner prefabricated panel and a second outer prefabricated panel using a concave-convex structure. The first outer prefabricated panel, the inner prefabricated panel and the second outer prefabricated panel are all provided with a splicing steel frame with the same structure. The splicing steel frame includes a fixing plate arranged at both ends of the inner prefabricated panel, the fixing plate is in the shape of a long strip and is respectively erected on two edges in the height direction of the end faces of the two ends of the inner prefabricated panel, and corresponding through holes are arranged on the fixing plate. The first outer prefabricated panel, the inner prefabricated panel and the second outer prefabricated panel are fastened by bolts with the help of the fixing plate.

[0005] The first outer precast panel, the inner precast panel and the second outer precast panel are all three-layer structures of an insulation layer and inner and outer concrete layers, and the cross-section of the concrete layer of the first outer precast panel and the second outer precast panel is a C-shaped structure. The fixed plates are all arranged on the concrete layers accordingly, and a cross plate is arranged between the fixed plates at both ends of the concrete layer on the same side.

[0006] Reinforcement plates are arranged between the transverse plates in the concrete layers on different sides.

[0007] The reinforcing plate comprises a first-stage plate, a broken bridge plate and a second-stage plate. One end of the first-stage plate and the second-stage plate are respectively fixed to the transverse plate, and the other end is respectively fixed to the broken bridge plate.

[0008] A longitudinal plate is arranged between the upper and lower ends of the two fixed plates on the same end surface of the inner prefabricated plate.

[0009] The longitudinal plate comprises a front plate, a middle plate and a rear plate which are connected in sequence. One end of the front plate and the rear plate are respectively fixed to two fixing plates, and the other end is respectively fixed to two ends of the middle plate.

[0010] The joints between the first outer prefabricated panel, the inner prefabricated panel and the second outer prefabricated panel are filled with a polyurethane foam layer, a rubber sealing strip, a structural adhesive layer, an alkali-resistant glass fiber mesh cloth and a mortar repair layer in sequence from the inside to the outside.

[0011] The concrete layer is also provided with a steel mesh frame and tie rods for fixing the steel mesh, and both ends of the tie rods are respectively fixed to the cross plate and the steel mesh frame at the same time.

[0012] The tie rod comprises a rod body and rod caps arranged at both ends of the rod body, wherein the rod cap is provided with an annular groove, the inner side of the rod cap is pressed against the outer side of the insulation layer, and the outer side is fixed to the transverse plate and the steel mesh frame.

[0013] A groove extending in the height direction is arranged on the concrete layer at one end of the first outer precast panel and the second outer precast panel, the bottom of the groove exposes the insulation layer and is filled with insulation material layer and insulation slurry layer in sequence from inside to outside.

[0014] The beneficial effects of the present invention are:

[0015] 1. The entire prefabricated panel adopts a split prefabrication and on-site splicing structure. The prefabricated panel is divided into multiple sections and prefabricated separately in the factory. After being transported to the construction site, it is spliced ​​and fixed by splicing steel frames. It is more convenient during transportation and simple and fast during splicing, which significantly improves the efficiency and convenience of prefabrication, transportation and splicing.

[0016] 2. The spliced ​​steel frame is a three-dimensional frame structure. After splicing, its integrity and strength are significantly improved, and its stability is better. In addition, the spliced ​​steel frame makes the entire prefabricated wall evenly stressed, and will not cause damage to the wall due to excessive local stress.

[0017] 3. The spliced ​​steel frame adopts a broken bridge structure, which completely avoids cold bridges and improves the thermal insulation performance of the wall.

[0018] 4. Add a waterproof vapor barrier membrane and a waterproof breathable membrane between the concrete layer and the insulation layer to prevent water vapor, moisture, etc. from eroding the insulation layer and metal components in the wall, thereby improving the insulation effect and service life of the wall.

[0019] 5. There are multiple layers of filling at the joints to prevent hollowing and cracking in the gaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the top view of the structure of the present invention;

[0021] Figure 2 Schematic diagram of the internal prefabricated panel structure

[0022] Figure 3 This is the first external prefabricated panel structure diagram

[0023] Figure 4 This is the schematic diagram of the second outer prefabricated panel structure

[0024] Figure 5 It is a schematic diagram of the joint structure between the first outer prefabricated panel, the inner prefabricated panel and the first outer prefabricated panel;

[0025] Figure 6 It is a schematic diagram of the spliced ​​steel frame structure;

[0026] Figure 7 yes Figure 6 A magnified view of middle;

[0027] Figure 8 yes Figure 6 Enlarged view of B.

[0028] In the accompanying drawings, 1. the first outer prefabricated board, 2. the inner prefabricated board, 3. the second outer prefabricated board, 4. the fixed board, 5. the insulation layer, 6. the concrete layer, 7. the horizontal board, 8. the reinforcing board, 9. the first section board, 10. the broken bridge board, 11. the second section board, 12. the longitudinal board, 13. the front section board, 14. the middle section board, 15. the rear section board, 16. the polyurethane foam layer, 17. the rubber sealing strip, 18. the structural adhesive layer, 19. the alkali-resistant glass fiber mesh cloth, 20. the mortar repair layer, 21. the rod body, 22. the rod cap, 23. the insulation material layer, 24. the insulation slurry layer, 101. the broken bridge connecting plate, 102. the broken bridge fastening plate, 141. the middle section connecting plate, 142. the middle section fixing plate, 25. the steel mesh. DETAILED DESCRIPTION

[0029] like Figure 1-8 As shown, the present invention provides an assembled ultra-low energy consumption prefabricated panel, which is formed by splicing a first outer prefabricated panel 1, an inner prefabricated panel 2 and a second outer prefabricated panel 3 using a concave-convex structure, and the first outer prefabricated panel 1, the inner prefabricated panel 2 and the second outer prefabricated panel 3 are all provided with a splicing steel frame with the same structure, and the splicing steel frame includes a fixing plate 4 arranged at both ends of the inner prefabricated panel 2, and the fixing plate 4 is in the shape of a long strip and is respectively erected on two edges in the height direction of the end faces of the two ends of the inner prefabricated panel 2, and corresponding through holes are arranged on the fixing plate 4, and the first outer prefabricated panel 1, the inner prefabricated panel 2 and the second outer prefabricated panel 3 are fastened by bolts with the help of the fixing plate 4.

[0030] The first outer prefabricated panel 1 and the second outer prefabricated panel 3 are respectively at the two ends of the inner prefabricated panel 2. The number of inner prefabricated panels 2 used for splicing can be selected according to actual needs. When splicing the first outer prefabricated panel 1, the inner prefabricated panel 2 and the second outer prefabricated panel 3, the fixing plate 4 is used as the main force and fastening point. The first outer prefabricated panel 1, the inner prefabricated panel 2 and the second outer prefabricated panel 3 are provided with an operating space required for fastening bolts on the side of the through hole position of the fixing plate 4. After fastening, the fixing plate 4 is sealed. One side of the fixing plate 4 is embedded in the inner prefabricated panel 2, and the other side is bent to form an L-shaped structure. The fixed plates 4 on the first outer prefabricated panel 1, the inner prefabricated panel 2 and the second outer prefabricated panel 3 are in the same and corresponding positions. The fixed plates 4 are fixed to the steel bars in the wall by embedded fixing or embedded side. The prefabricated wall is prefabricated in a split manner in the factory and assembled after being transported to the construction site. The assembly is simple and convenient, and the split wall is easy to transport, which reduces the transportation cost and the single transportation volume. A lifting plate is added to the upper end of the fixed plate 4, and the lifting plate extends upward from the prefabricated wall to facilitate transportation and lifting.

[0031] like Figure 2 As shown, the first outer precast panel 1, the inner precast panel 2 and the second outer precast panel 3 are all three-layer structures of an insulation layer 5 and inner and outer concrete layers 6, and the cross-section of the concrete layer 6 of the first outer precast panel 1 and the second outer precast panel 3 is a C-shaped structure, the fixed plates 4 are all correspondingly arranged on the concrete layer 6, and a cross plate 7 is arranged between the fixed plates 4 at both ends of the concrete layer 6 on the same side.

[0032] The cross section of the concrete layer 6 of the first outer precast panel 1 and the second outer precast panel 3 is a C-shaped structure, the outer side of which does not expose the insulation layer 5, and the inner side is spliced ​​with the inner precast panel 2. The fixed plates 4 are arranged on the end faces at both ends of the concrete layer 6 to prevent the insulation layer 5 from being damaged by force. The fixed plates 4 are further strengthened and strengthened by means of the cross plates 7, and the contact area between the spliced ​​steel frame and the concrete layer 6 is increased. The fixed plates 4 with different end faces and corresponding to the same side are connected by the cross plates 7 to form an H-shaped structure. The number of cross plates 7 is selected according to actual needs. The board 4 is directly fixed with the help of the cross board 7, and there is no need to use other fixing methods. A waterproof vapor barrier membrane and a waterproof breathable membrane are added between the insulation layer 5 and the concrete layer 6 of the first outer prefabricated board 1, the inner prefabricated board 2 and the second outer prefabricated board 3. The waterproof vapor barrier membrane is between the concrete layer 6 and the insulation layer 5 facing the indoor side, which isolates water vapor to prevent metal parts from being corroded and improve the insulation effect. The waterproof breathable membrane is between the concrete layer 6 and the insulation layer 5 facing the outdoor side, and the insulation layer 5 is added to discharge moisture to the outside and prevent the erosion of external moisture.

[0033] like Figure 6 and Figure 8 As shown, reinforcing plates 8 are arranged between the transverse plates 7 in the concrete layers 6 on different sides.

[0034] A reinforcing plate 8 is added between the transverse plates 7 to connect the fixed plates 4 and the transverse plates 7 on different sides to form an integral structure, so that the integrity, firmness and strength of the spliced ​​steel frame are further increased.

[0035] like Figure 6 and Figure 8 As shown, the reinforcing plate 8 includes a first-stage plate 9, a broken bridge plate 10 and a second-stage plate 11. One end of the first-stage plate 9 and the second-stage plate 11 are respectively fixed to the transverse plate 7, and the other end is respectively fixed to the broken bridge plate 10.

[0036] In order to reduce damage to the insulation layer 5, the reinforcement plate 8 can be arranged on the horizontal plate 7 between the upper and lower ends of the fixed plate 4 without passing through the insulation layer 5. In order to avoid the cold bridge phenomenon, the reinforcement plate 8 is arranged in a three-section structure. The first section plate 9 and the second section plate 11 are both made of metal, and the broken bridge plate 10 is made of divided metal material. The broken bridge plate 10 is divided into a broken bridge connecting plate 101 and a broken bridge fastening plate 102 arranged on the upper end face or the lower end face of the broken bridge connecting plate 101 to form a T-shaped structure. When connected, the two ends of the broken bridge connecting plate 101 are respectively tightened against the first section plate 9 and the second section plate 11 and do not need to be fixed. The length of the broken bridge fastening plate 102 is greater than the broken bridge connecting plate 101, so the side of the broken bridge fastening plate 102 fixed to the broken bridge connecting plate 101 is simultaneously in contact with the upper end face or the lower end face of the first section plate 9 and the second section plate 11, and the broken bridge fastening plate 102 and the first section plate 9 and the second section plate 11 are fastened by bolts or rivets.

[0037] like Figure 6 and Figure 7 As shown, a longitudinal plate 12 is provided between the upper and lower ends of the two fixing plates 4 on the same end surface of the inner prefabricated plate 2.

[0038] The longitudinal plate 12 connects the two longitudinal fixed plates 4 so that the spliced ​​steel frame forms a three-dimensional frame structure, which improves the integrity of the spliced ​​steel frame and further increases the strength of the spliced ​​steel frame. During prefabrication, the spliced ​​steel frame can be processed as a whole first, and then the spliced ​​steel frame can be put on the insulation layer 5 as a whole, or it can be directly assembled on the insulation layer 5, and the concrete layer 6 can be poured after the formwork is supported, which improves the prefabrication efficiency and reduces the prefabrication production time. At the same time, the longitudinal plate 12 is fixed only between the upper end and the lower end of the fixed plate 4, respectively, to avoid obstruction to the first outer prefabricated plate 1, the inner prefabricated plate 2 and the second outer prefabricated plate 3 during splicing, and the cross-section of the longitudinal plate 12 is preferably an L-shaped structure with high strength, and its inner side can be directly fixed on the corners of the insulation layer for easy positioning.

[0039] like Figure 6 and Figure 7 As shown, the longitudinal plate 12 includes a front plate 13, a middle plate 14 and a rear plate 15 connected in sequence, one end of the front plate 13 and the rear plate 15 are respectively fixed to the two fixing plates 4, and the other end is respectively fixed to the two ends of the middle plate 14.

[0040] In order to avoid the cold bridge phenomenon, the longitudinal plate 12 is set to a three-section structure, in which the middle section plate 14 is made of non-metallic material, which effectively ensures the thermal insulation effect of the prefabricated plate. The middle section plate 14 includes a middle section connecting plate 141 and a middle section fixing plate 142 arranged at the upper end or lower end of the middle section connecting plate 141. When connected, the two ends of the middle section connecting plate 141 are respectively tightened against the front section plate 13 and the rear section plate 15, and the length of the middle section fixing plate 142 is greater than the middle section connecting plate 141. At this time, the upper end or the lower end of the middle section fixing plate 142 is simultaneously in contact with the front section plate 13, the middle section connecting plate 141 and the rear section plate 15. The middle section fixing plate 142 and the front section plate 13 and the rear section plate 15 can be quickly fixed by means of bolts or rivets. The operation is simple and convenient, and cold bridges can be effectively avoided.

[0041] like Figure 5 As shown, the joints between the first outer prefabricated panel 1, the inner prefabricated panel 2 and the second outer prefabricated panel 3 are filled with a polyurethane foam layer 16, a rubber sealing strip 17, a structural adhesive layer 18, an alkali-resistant glass fiber mesh cloth 19 and a mortar repair layer 20 in sequence from the inside to the outside.

[0042] During filling, the first outer prefabricated panel 1, the inner prefabricated panel 2, and the second outer prefabricated panel 3 are filled outward from both sides of the central protrusion, that is, each joint has two groups of filling on the inner and outer sides, and the rubber sealing strip 17 is pre-set at the joint, and the filling is performed after the joint. The polyurethane foam layer 16 can fill the inside to prevent the hollow, and the structural adhesive layer 18 is used for sealing. A groove is reserved on the outside of the concrete layer 6. After the joint, the groove and the joint form a T-shaped structure, and the joint is sealed with the structural adhesive layer 1 8 After sealing, an alkali-resistant glass fiber mesh cloth 19 is laid in the groove and a mortar repair layer 20 is filled to prevent cracking at the joints. The alkali-resistant glass fiber mesh cloth 19 and the filled mortar repair layer 20 seal the joints and are bonded to the concrete layer 6 as a whole, thereby increasing the integrity of the overall prefabricated board. If the prefabricated first outer prefabricated board 1, the inner prefabricated board 2 and the second outer prefabricated board 3 are directly provided with outer decorative panels, there is no need to fill the alkali-resistant glass fiber mesh cloth 19 and the mortar repair layer 20 at the joints.

[0043] like Figure 2 As shown, the concrete layer 6 is also provided with a steel mesh and tie rods for fixing the steel mesh, and both ends of the tie rods are fixed to the cross plate 7 and the steel mesh respectively.

[0044] The spliced ​​steel frame and the steel mesh frame are fixed simultaneously by tie rods. The spliced ​​steel frame can be fixed directly by means of the existing conventional wall connection structure without adding an additional fixing structure for the spliced ​​steel frame, thereby saving costs and improving construction efficiency.

[0045] like Figure 2As shown, the tie rod includes a rod body 21 and rod caps 22 arranged at both ends of the rod body 21, and the rod caps 22 are provided with annular grooves. The inner side of the rod cap 22 is tightly pressed against the outer side of the insulation layer 5, and the outer side is fixed to the cross plate 7 and the steel mesh frame.

[0046] The inner side of the pole cap 22 is tightly pressed against the insulation layer 5, and the outer side is fixed to the spliced ​​steel frame and the steel mesh frame, thereby ensuring the distance between the insulation layer 5 and the spliced ​​steel frame and the steel mesh frame. When the distance is too close or even fits on the insulation layer 5, the strength of the entire prefabricated wall will be reduced. The pole body 21 is made of non-metallic material or the pole cap 22 and the outer surface of the pole body 21 are wrapped with non-metallic material, which effectively avoids the formation of cold bridges.

[0047] like Figure 2-4 As shown, a groove extending in the height direction is provided on the concrete layer 6 at one end of the first outer precast panel 1 and the second outer precast panel 3, and the bottom of the groove exposes the insulation layer 5 and is filled with insulation material layer 23 and insulation slurry layer 24 in sequence from the inside to the outside.

[0048] By adding the insulation material layer 23 and the insulation slurry layer 24, the insulation performance of the entire wall can be improved. At the same time, a steel mesh 25 is added at this position to increase the strength of this position. Both sides of the steel mesh 25 pass through the insulation slurry layer 24 and are fixed to the steel grid.

Claims

1. Assembled ultra-low energy consumption prefabricated panels, Features: The prefabricated panels are formed by splicing a first outer prefabricated panel (1), an inner prefabricated panel (2) and a second outer prefabricated panel (3) using a concave-convex structure. The first outer prefabricated panel (1), the inner prefabricated panel (2) and the second outer prefabricated panel (3) are all provided with a splicing steel frame with the same structure. The splicing steel frame comprises a fixing plate (4) arranged at both ends of the inner prefabricated panel (2). The fixing plate (4) is in the shape of a long strip and is respectively erected on two edges of the end surface of the inner prefabricated panel (2) in the height direction. The fixing plate (4) is provided with corresponding through holes. The first outer prefabricated panel ( 1), the inner prefabricated panel (2) and the second outer prefabricated panel (3) are fastened by bolts with the help of a fixing plate (4); the first outer prefabricated panel (1), the inner prefabricated panel (2) and the second outer prefabricated panel (3) are all three-layer structures of an insulation layer (5) and two inner and outer concrete layers (6); the cross-sections of the concrete layers (6) of the first outer prefabricated panel (1) and the second outer prefabricated panel (3) are C-shaped structures; the fixing plates (4) are all correspondingly arranged on the concrete layers (6), and a transverse plate (7) is arranged between the fixing plates (4) at both ends of the concrete layer (6) on the same side; the inner prefabricated panel (2) A longitudinal plate (12) is provided between the upper and lower ends of the two fixed plates (4) on the same end surface; the joints between the first outer prefabricated plate (1), the inner prefabricated plate (2) and the second outer prefabricated plate (3) are filled with a polyurethane foam layer (16), a rubber sealing strip (17), a structural adhesive layer (18), an alkali-resistant glass fiber mesh cloth (19) and a mortar repair layer (20) in sequence from the inside to the outside; the concrete layer (6) is also provided with a steel mesh frame and a tie rod for fixing the steel mesh, and the two ends of the tie rod are respectively fixed to the transverse plate (7) and the steel mesh frame at the same time; the tie rod The rod comprises a rod body (21) and rod caps (22) arranged at both ends of the rod body (21), the rod caps (22) being provided with an annular groove, the inner side of the rod cap (22) being pressed against the outer side of the thermal insulation layer (5), and the outer side being fixed to the transverse plate (7) and the steel mesh frame, the longitudinal plate (12) comprising a front section plate (13), a middle section plate (14) and a rear section plate (15) connected in sequence, one end of the front section plate (13) and the rear section plate (15) being fixed to the two fixing plates (4) respectively, and the other end being fixed to the two ends of the middle section plate (14), and the middle section plate (14) being made of non-metallic material.

2. The assembled ultra-low energy consumption prefabricated panel according to claim 1, Features: Reinforcement plates (8) are provided between the transverse plates (7) in the concrete layers (6) on different sides.

3. The assembled ultra-low energy consumption prefabricated panel according to claim 2, Features: The reinforcing plate (8) comprises a first-stage plate (9), a broken bridge plate (10) and a second-stage plate (11); one end of the first-stage plate (9) and the second-stage plate (11) are respectively fixed to the transverse plate (7) and the other ends are respectively fixed to the broken bridge plate (10).

4. The assembled ultra-low energy consumption prefabricated panel according to claim 1, Features: A groove extending in the height direction is provided on the concrete layer (6) at one end of the first outer precast panel (1) and the second outer precast panel (3), the bottom of the groove exposing the thermal insulation layer (5) and being filled with a thermal insulation material layer (23) and a thermal insulation slurry layer (24) in sequence from the inside to the outside.

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