A method for rapidly constructing low-rise, energy-efficient, and thermally insulated concrete houses.

Abstract

This invention discloses a rapidly constructible low-rise energy-saving insulated concrete house and its construction method, comprising a concrete foundation, multiple precast insulated wall panels, and multiple precast insulated roof panels; when the number of floors is greater than one, it also includes multiple precast insulated floor slabs; all the precast insulated wall panels and the insulation layers in the precast insulated roof panels together form a continuous insulation structure; all cavities, through holes, and cast-in-place holes are filled with anchoring steel bars and concrete is poured to form a hidden column structure; the top and bottom grooves of the precast insulated wall panels are provided with transverse steel bars and concrete is poured to form a hidden beam structure or foundation connection structure, fixing the concrete foundation, precast insulated wall panels, and precast insulated roof panels together, or fixing the concrete foundation, precast insulated wall panels, precast insulated floor slabs, and precast insulated roof panels together.

Description

Technical Field

[0001] This invention relates to the field of energy-saving and heat-insulating concrete building technology, and in particular to a low-rise energy-saving and heat-insulating concrete house that can be constructed quickly and a construction method thereof. Background Technology

[0002] Prefabricated construction refers to the transfer of a large amount of on-site work from traditional construction methods to factories. Building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are prefabricated in factories, transported to the construction site, and assembled on-site using reliable connection methods. Prefabricated buildings mainly include precast concrete structures, steel structures, and modern wood structures. Because they employ standardized design, factory production, assembly-based construction, information management, and intelligent applications, they represent modern industrialized production methods.

[0003] CN201611181495.8 discloses a precast concrete wall panel and an assembled building thereof, and a construction method thereof. In this building, the sides of the precast concrete wall panels with longitudinal perforations are joined together to form several large wall panels. The sides of these large wall panels with longitudinal perforations are joined together to form a wall. Vertical steel mesh or steel cages are installed in the longitudinal perforations of the wall. "L"-shaped cast-in-place columns are installed at the corners of the wall, and "T"-shaped cast-in-place columns are installed at the "T"-shaped intersections of the wall. Horizontal steel bars are inserted into the through holes formed by the transverse holes of two adjacent precast concrete wall panels. Horizontal reinforcing bars are inserted into the through-holes formed by the transverse holes of the slab and the transverse holes of the "L"-shaped or "T"-shaped cast-in-place columns. The horizontal reinforcing bars extend into the edge of the "L"-shaped or "T"-shaped cast-in-place columns. The horizontal reinforcing bars inserted into the through-holes form lap connections with the horizontal reinforcing bars of the wall cage in the wall panel, meeting the lap connection length requirements for high-rise buildings. The horizontal reinforcing bars inserted into the transverse holes between the precast concrete wall panel and the "L"-shaped or "T"-shaped cast-in-place columns form lap connections with the horizontal reinforcing bars of the reinforcing cage in the precast wall panel, meeting the lap connection length requirements for high-rise buildings. Concrete is poured into the holes.

[0004] The prefabricated wall panels and prefabricated buildings mentioned in the above patent application are usually used for high-rise residential buildings and are not suitable for the rapid construction of low-rise buildings; moreover, the prefabricated wall panels do not contain insulation structures, and insulation and decorative panels need to be installed separately on the exterior surface of the building after construction.

[0005] Therefore, developing and designing a low-rise, energy-efficient, and thermally insulated concrete house that can be constructed quickly has become one of the urgent technical problems to be solved in this field. Summary of the Invention

[0006] The purpose of this invention is to provide a low-rise, energy-saving, and thermally insulated concrete house that can be constructed quickly and a construction method thereof.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A rapidly constructible low-rise energy-saving insulated concrete house, the house having ≤3 floors; comprising a concrete foundation, multiple precast insulated wall panels, and multiple precast insulated roof panels; when the number of floors is greater than 1, it also includes multiple precast insulated floor slabs; the precast insulated wall panels include L-shaped wall panels and flat wall panels; all the precast insulated wall panels and the insulation layer in the precast insulated roof panels together form a continuous insulation structure;

[0009] The concrete foundation has a foundation fixing groove at its edge for placing prefabricated insulated wall panels. The top, bottom, left and right sides of the prefabricated insulated wall panels are provided with grooves. The grooves of two adjacent prefabricated insulated wall panels are joined to form a cavity. Anchor steel bars are pre-embedded in the concrete foundation. One end of the anchor steel bar extends vertically upward into the cavity. The upper end of the cavity is directly opposite to the through hole on the prefabricated insulated floor slab or prefabricated insulated roof panel, and an anchor steel bar is inserted therein.

[0010] The upper and lower surfaces of the prefabricated insulated floor slab and the lower surface of the prefabricated insulated roof slab are provided with wall panel fixing grooves for placing prefabricated insulated wall panels.

[0011] Horizontal steel bars are inserted into the grooves at the top and bottom of all prefabricated insulated wall panels;

[0012] According to the construction design requirements, the precast insulated wall panel may also be provided with longitudinal concrete ribs, and the concrete ribs are provided with cast-in-place holes. The cast-in-place holes are directly opposite to the through holes on the precast insulated floor slab or precast insulated roof panel, and anchoring steel bars are inserted therein.

[0013] Furthermore, the prefabricated insulated wall panel consists of a concrete outer wall panel, an insulation layer, and a concrete inner wall panel from the outside to the inside. The thickness of the insulation layer is greater than the thickness of the concrete outer wall panel and the concrete inner wall panel. The thickness of the concrete outer wall panel and the concrete inner wall panel is ≤40cm. The concrete outer wall panel and the concrete inner wall panel are provided with steel mesh. The prefabricated insulated wall panel has a plurality of uniformly distributed non-metallic embedded fasteners, and the two ends of the non-metallic embedded fasteners are respectively fixed to the steel mesh in the concrete outer wall panel and the concrete inner wall panel.

[0014] The four edges of the concrete exterior wall panel and the concrete interior wall panel are all thickened. The inner side of the thickened part tapers towards the middle of the precast insulation wall panel, so that the thickness of the concrete exterior wall panel and the concrete interior wall panel increases at the thickened part. The end face of the thickened part of the concrete exterior wall panel is inclined. The angle between the inclined surface and the outer side of the concrete exterior wall panel is an obtuse angle.

[0015] The precast insulated wall panel has grooves along its direction at the top and bottom, and grooves in the vertical direction at both the left and right ends. The inner width of the groove in the vertical direction between the thickened part at the upper edge and the thickened part at the lower edge of the concrete inner wall panel is greater than the outer width. Multiple non-metallic embedded fasteners that are evenly distributed in the vertical direction and pass through the groove are pre-embedded between the thickened part at the left edge of the concrete outer wall panel and the opposite concrete inner wall panel. Multiple non-metallic embedded fasteners that are evenly distributed in the vertical direction and pass through the groove are pre-embedded between the thickened part at the right edge of the concrete outer wall panel and the opposite concrete inner wall panel.

[0016] Two grooves of two adjacent prefabricated insulated wall panels are joined together to form a cavity. Anchor steel bars and U-shaped steel bars are inserted into the cavity. The U-shaped steel bars are inserted from top to bottom to fix the non-metallic embedded fasteners in the two grooves.

[0017] All cavities, through holes, and cast-in-place holes are filled with concrete to form hidden column structures. The top and bottom grooves of the precast insulated wall panels are filled with concrete to form hidden beam structures or foundation connection structures, fixing the concrete foundation, precast insulated wall panels, and precast insulated roof panels together, or fixing the concrete foundation, precast insulated wall panels, precast insulated floor slabs, and precast insulated roof panels together. The height of the concrete poured in the precast insulated roof panels is flush with the height of the concrete ribs of the roof panels. Insulation filler blocks are placed on top of the poured concrete to form a continuous insulation structure with the insulation layer in the precast insulated roof panels.

[0018] Furthermore, the bottom surface of the concrete foundation is evenly distributed with multiple foundation ribs, the thickness of the foundation ribs and the left and right edges of the concrete foundation is equal and greater than the thickness of the rest; the concrete foundation is made of cast-in-place concrete or spliced ​​from precast concrete foundation slabs, and the concrete foundation contains steel mesh.

[0019] Furthermore, the concrete inner wall panel of the precast insulated wall panel may be provided with one or more concrete ribs, the top surface of the concrete ribs being flush with the bottom surface of the groove at the top of the precast insulated wall panel; the bottom surface of the concrete ribs being flush with the bottom surface of the groove at the bottom of the precast insulated wall panel; the concrete ribs are provided with longitudinal cast-in-place holes, and one end of a portion of the anchoring steel bars in the concrete foundation extends vertically upward into the cast-in-place holes, and the cast-in-place holes are directly opposite the through holes of the precast insulated floor slab or precast insulated roof panel.

[0020] Furthermore, the precast insulated roof panel has a concrete outer slab containing steel mesh on its upper, lower, left, right, front, and back surfaces, with an insulation layer wrapped in the middle. The thickness of the insulation layer is greater than the thickness of the concrete outer slab, and the thickness of the concrete outer slab is ≤40cm. Multiple uniformly distributed non-metallic embedded fasteners are pre-embedded within the precast insulated roof panel. The two ends of each non-metallic embedded fastener are fixed to the steel mesh within the upper and lower concrete outer slabs, respectively. The edge of the steel mesh within the lower concrete outer slab is connected to the steel truss. The height of the steel truss within the precast insulated roof panel is less than the height of the insulation layer. Multiple evenly distributed roof panel concrete ribs are provided on the lower concrete outer slab, and the height of these ribs is equal to the height of the steel truss within the precast insulated roof panel. Multiple through holes are provided on the precast insulated roof panel, corresponding to the cavity or the cast-in-place hole. The length of the precast insulated roof panel is ≤12m.

[0021] Furthermore, the precast insulated floor slab has a concrete outer slab containing steel mesh on its upper, lower, left, right, front, and back surfaces, with an insulation layer wrapped in the middle. The thickness of the insulation layer is greater than the thickness of the concrete outer slab, which is ≤40cm thick. Multiple uniformly distributed non-metallic embedded fasteners are pre-embedded within the precast insulated floor slab. The two ends of each non-metallic embedded fastener are fixed to the steel mesh of the upper and lower concrete outer slabs, respectively. The edges of the steel mesh within the upper and lower concrete outer slabs are connected by a steel truss. The precast insulated floor slab has multiple floor slab concrete ribs evenly distributed along its length, which divide the insulation layer into multiple sections. The precast insulated floor slab has multiple through holes directly opposite the cavity or the cast-in-place hole. The length of the precast insulated floor slab is ≤12m.

[0022] Furthermore, the inner side of the groove is a concrete inner wall panel, and the outer side is an insulation layer; the four edges of the concrete outer wall panel, the insulation layer, and the concrete inner wall panel are all flush with each other.

[0023] Furthermore, the L-shaped concrete inner wall panel extends into the insulation layer at the corner to form a corner column. The top surface of the corner column is flush with the bottom surface of the groove at the top of the L-shaped wall panel; the bottom surface of the corner column is flush with the bottom surface of the groove at the bottom of the L-shaped wall panel; the corner column is provided with a longitudinal cast-in-place hole, which is directly opposite to the through hole on the precast insulated floor slab or precast insulated roof panel, and is inlaid with anchoring steel bars and poured with concrete.

[0024] Furthermore, the groove between the thickened portion on the left edge and the thickened portion on the right edge of the concrete inner wall panel has a rectangular cross-section; the thickness of the insulation layer is 20~50cm.

[0025] Furthermore, the prefabricated insulated roof panels are arranged horizontally, slopingly, or in a herringbone pattern.

[0026] The construction method for the rapidly constructed low-rise energy-saving and heat-insulating concrete house of the present invention is as follows: a concrete foundation is made and anchor steel bars are pre-embedded, or multiple precast concrete foundation slabs with pre-embedded anchor steel bars are spliced ​​together to obtain a concrete foundation; transverse steel bars are laid in the center of the foundation fixing groove; precast heat-insulating wall panels are hoisted into place in sequence; U-shaped steel bars are inserted into the cavity enclosed by two adjacent precast heat-insulating wall panels; anchor steel bars are inserted into the cast-in-place holes of the precast heat-insulating wall panels; and transverse steel bars are laid in the groove at the top of the precast heat-insulating wall panels.

[0027] When the building has only one floor, continue to hoist the prefabricated insulated roof panels into place in sequence, insert anchor bars into the through holes, and pour cast-in-place concrete into all cavities, grooves, through holes, and cast-in-place holes; the height of the concrete poured into the prefabricated insulated roof panels is flush with the height of the concrete ribs of the roof panels, and an insulation filler block is placed on top of the poured concrete to form a continuous insulation structure with the insulation layer in the prefabricated insulated roof panels; sealant is squeezed into all joints;

[0028] When the building has two or three floors, continue hoisting the precast insulated floor slabs into place sequentially, inserting anchor bars into the through holes, and pouring cast-in-place concrete into all cavities, grooves, through holes, and cast-in-place holes; then lay transverse reinforcement bars in the wall panel fixing grooves on the upper surface of the precast insulated floor slabs, and continue hoisting the upper precast insulated wall panels into place sequentially; insert U-shaped reinforcement bars into the cavities enclosed by two adjacent precast insulated wall panels, insert anchor bars into the cast-in-place holes of the precast insulated wall panels, and lay reinforcement bars in the grooves at the top of the precast insulated wall panels. Transverse reinforcement bars; repeat construction in this order until all prefabricated insulated wall panels and prefabricated insulated floor slabs are installed; finally, hoist the prefabricated insulated roof panels into place in sequence, insert anchor reinforcement bars into the through holes, and pour cast-in-place concrete into all cavities, grooves, through holes, and cast-in-place holes; the height of the concrete poured in the prefabricated insulated roof panels is flush with the height of the roof panel concrete ribs, and insulation filler blocks are placed on top of the poured concrete to form a continuous insulation structure with the insulation layer in the prefabricated insulated roof panels; sealant is squeezed into all joints.

[0029] Compared with the prior art, the outstanding effect of the present invention is as follows:

[0030] (1) The low-rise energy-saving and heat-insulating concrete house of the present invention is suitable for building houses of one to three floors. It can be built quickly, with a construction period of only 3-10 days and low cost.

[0031] (2) All the wall panels, floor slabs and roof panels of the house contain insulation layers. In particular, all the prefabricated insulated wall panels and the insulation layers of the prefabricated insulated roof panels together form a continuous insulation structure, ensuring full insulation coverage and significant energy-saving effect. Moreover, the thickness of the insulation layer is greater than the thickness of the thin concrete outer panel, and the overall self-weight of the house is much less than that of the concrete house built with existing technology, resulting in lower cost and higher cost performance.

[0032] (3) The prefabricated insulated wall panels, prefabricated insulated roof panels, and prefabricated insulated floor panels used in this invention are all standardized components, and their structure and dimensions can be customized to standard, making them easy to promote and apply both domestically and internationally. The embedded fasteners used in this invention are all made of non-metallic materials (FRP fiber reinforced composite materials), which avoids the thermal bridging effect caused by metal embedded fasteners and ensures the insulation effect of the entire house.

[0033] (4) In this invention, the inner width of the groove in the vertical direction between the thickened part at the upper edge and the thickened part at the lower edge of the concrete inner wall panel is greater than the outer width. After concrete is poured into the cavity enclosed by the grooves of two adjacent wall panels, it is ensured that the concrete is firmly connected to the prefabricated insulation wall panel after solidification.

[0034] (5) The prefabricated insulated wall panel of the present invention has thickened edges on the concrete outer wall panel and the concrete inner wall panel, which ensures that the edges of the concrete outer wall panel and the inner wall panel are not easily damaged by bumps; and pre-embedded fasteners are pre-embedded in the grooves on the left and right sides of the prefabricated insulated wall panel. By inserting U-shaped steel bars, the pre-embedded fasteners of the two wall panels are tightly locked, which further ensures the stability of the connection structure between the two adjacent wall panels.

[0035] (6) All cavities, through holes and cast-in-place holes of the house of the present invention are filled with anchored steel bars and then concrete is poured to form a hidden column structure; the top and bottom grooves of the prefabricated insulation wall panel are provided with transverse steel bars and concrete is poured to form a hidden beam structure or foundation connection structure, which fixes the concrete foundation, prefabricated insulation wall panel and prefabricated insulation roof panel together, or fixes the concrete foundation, prefabricated insulation wall panel, prefabricated insulation floor slab and prefabricated insulation roof panel together, thus ensuring the stability of the structure.

[0036] (7) The L-shaped wall panel used in this invention has cast-in-place holes in which anchor steel bars can be inserted and concrete can be poured in place to form a hidden column structure, ensuring balanced stress and stable building structure. Depending on the stress requirements of different buildings, this invention can also add one or more evenly distributed cast-in-place holes in the middle of the planar wall panel, in which anchor steel bars can be inserted and concrete can be poured in place to form a hidden column structure, ensuring balanced stress and stable building structure.

[0037] (8) The prefabricated insulated roof panel of the present invention has a large span and a length of ≤12m. It adopts a structure of concrete outer panel covering the insulation layer, without the need to add load-bearing inner wall for support, ensuring that it meets the load requirements such as wind load and snow load.

[0038] (9) The prefabricated insulated floor slab of the present invention has a large span and a length of ≤12m. It adopts a structure of concrete outer slab, concrete ribs of floor slab and covering insulation layer. There is no need to add load-bearing inner wall for support, which can meet the load-bearing requirements.

[0039] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates the rapidly constructible low-rise energy-saving and thermally insulated concrete house and its construction method according to the present invention. Attached Figure Description

[0040] Figure 1 This is a front sectional view of the low-rise energy-saving and heat-insulating concrete house that can be quickly constructed according to the present invention (two-story house with the roof panels set at an angle).

[0041] Figure 2 This is a top perspective view of the low-rise, energy-saving, and thermally insulated concrete house that can be quickly constructed according to the present invention.

[0042] Figure 3 This is a top view of a planar wall panel.

[0043] Figure 4 This is a horizontal cross-sectional view of a planar wall panel.

[0044] Figure 5 This is a top view of the L-shaped wall panel.

[0045] Figure 6 This is a horizontal cross-sectional view of an L-shaped wall panel.

[0046] Figure 7 for Figure 4 The “AA” cross-section diagram.

[0047] Figure 8 This is a side view of a planar wall panel.

[0048] Figure 9 for Figure 4 The "BB" cross-section diagram.

[0049] Figure 10 This is a longitudinal section view of the prefabricated insulated floor slab along its length.

[0050] Figure 11 This is a horizontal cross-sectional view of a prefabricated insulated floor slab.

[0051] Figure 12 for Figure 11 The "CC" cross-section diagram.

[0052] Figure 13A longitudinal section view along the length of a horizontally installed prefabricated insulated roof panel.

[0053] Figure 14 A horizontal cross-sectional view of a prefabricated insulated roof panel that is set horizontally.

[0054] Figure 15 A cross-sectional view of the steel truss of a horizontally installed prefabricated insulated roof panel.

[0055] Figure 16 This is a longitudinal section view of the prefabricated insulated floor slab along its width.

[0056] Figure 17 This is a longitudinal section view of the prefabricated insulated roof panel along its width.

[0057] Figure 18 This is a longitudinal section view of the connection between two adjacent wall panels and the concrete foundation.

[0058] Figure 19 This is a longitudinal section view of the connection between two adjacent wall panels and the floor slab.

[0059] Figure 20 This is a longitudinal section view of the connection between two adjacent wall panels and the horizontally installed roof panel.

[0060] Figure 21 This is a horizontal cross-sectional view of the connection between the L-shaped wall panel and the flat wall panel.

[0061] Figure 22 This is a horizontal cross-sectional view of the connection between two adjacent planar wall panels.

[0062] Figure 23 A longitudinal section of a prefabricated insulated roof panel installed at an angle.

[0063] Figure 24 This is a front sectional view of the low-rise energy-saving and heat-insulating concrete house that can be quickly constructed according to the present invention (two-story house with horizontal roof panels).

[0064] Figure 25 This is a front sectional view of the low-rise energy-saving and heat-insulating concrete house that can be quickly constructed according to the present invention (single-story house with a roof panel in a "V" shape).

[0065] Among them, 1-concrete foundation, 2-precast insulated wall panel, 3-precast insulated floor slab, 4-precast insulated roof panel, 5-joint sealant;

[0066] 21-L-shaped wall panel, 22-flat wall panel, 23-concrete exterior wall panel, 24-concrete interior wall panel, 25-insulation layer, 26-concrete rib, 27-non-metallic embedded fastener, 28-cast-in-place hole, 29-groove, 30-steel mesh.

[0067] 231-Sloping surface, 232-Thickened section, 241-Corner column;

[0068] 31-Concrete outer slab; 32-Wall panel fixing groove; 33-Through hole; 34-Floor slab concrete rib; 35-Reinforcing steel truss; 36-Roof panel concrete rib; 37-Insulation filler block;

[0069] 101-Foundation fixing groove, 102-Anchoring steel bar, 103-U-shaped steel bar, 104-Cast-in-place concrete, 105-Transverse steel bar. Detailed Implementation

[0070] like Figure 2-22 , Figure 24 As shown, taking a two-story house as an example, a low-rise energy-saving and heat-insulating concrete house that can be quickly constructed includes a concrete foundation 1, multiple prefabricated heat-insulating wall panels 2, multiple prefabricated heat-insulating roof panels 4, and multiple prefabricated heat-insulating floor slabs 3; the prefabricated heat-insulating wall panels 2 include L-shaped wall panels 21 and flat wall panels 22; all the prefabricated heat-insulating wall panels 2 and the insulation layer in the prefabricated heat-insulating roof panels 4 together form a continuous heat-insulating structure;

[0071] The edge of the concrete foundation 1 is provided with a foundation fixing groove 101 for placing the prefabricated insulated wall panel 2. The top, bottom, left and right sides of the prefabricated insulated wall panel 2 are provided with grooves 29. The grooves 29 of two adjacent prefabricated insulated wall panels 2 are joined to form a cavity. Anchor steel bars 102 are pre-embedded in the concrete foundation 1. One end of the anchor steel bar 102 extends vertically upward into the cavity. The upper end of the cavity is directly opposite to the through hole 33 on the prefabricated insulated floor slab 3 or prefabricated insulated roof panel 4, and the anchor steel bar 102 is inserted therein.

[0072] The upper and lower surfaces of the prefabricated insulated floor slab 3 and the lower surface of the prefabricated insulated roof slab 4 are provided with wall panel fixing grooves 32 for placing the prefabricated insulated wall panels 2.

[0073] Horizontal steel bars 105 are inserted into the grooves 29 at the top and bottom of all the prefabricated insulated wall panels 2;

[0074] According to the construction design requirements, the precast insulated wall panel 2 may also be provided with longitudinal concrete ribs, and the concrete ribs are provided with cast-in-place holes. The cast-in-place holes are directly opposite to the through holes 33 on the precast insulated floor slab 3 or the precast insulated roof panel 4, and anchoring steel bars 102 are inserted therein.

[0075] Multiple foundation ribs are evenly distributed on the bottom surface of the concrete foundation 1. The thickness of the foundation ribs and the left and right edges of the concrete foundation 1 is equal and greater than the thickness of the rest. The concrete foundation 1 is made of cast-in-place concrete or spliced ​​from precast concrete foundation slabs with a width of 1m. The concrete foundation 1 contains steel mesh.

[0076] The prefabricated insulated wall panel 2 consists of a concrete outer wall panel 23, an insulation layer 25, and a concrete inner wall panel 24, arranged from the outside to the inside. The thickness of the insulation layer 25 is greater than the thickness of the concrete outer wall panel 23 and the concrete inner wall panel 24. The thickness of the concrete outer wall panel 23 and the concrete inner wall panel 24 is ≤40cm. Both the concrete outer wall panel 23 and the concrete inner wall panel 24 are provided with steel mesh 30. The prefabricated insulated wall panel 2 is pre-embedded with a plurality of uniformly distributed non-metallic embedded fasteners 27. The two ends of the non-metallic embedded fasteners 27 are respectively fixed to the steel mesh 30 in the concrete outer wall panel 23 and the concrete inner wall panel 24.

[0077] The four edges of the concrete exterior wall panel 23 and the concrete interior wall panel 24, namely the top, bottom, left, and right edges, are all thickened portions 232. The inner side of the thickened portion 232 tapers towards the center of the precast insulation wall panel 2, thereby increasing the thickness of the concrete exterior wall panel 23 and the concrete interior wall panel 24 at the thickened portion 232. The end face of the thickened portion 232 of the concrete exterior wall panel 23 is a slope 231. The angle between the slope 231 and the outer side of the concrete exterior wall panel 23 is an obtuse angle.

[0078] The prefabricated insulated wall panel 2 has grooves 29 along the direction of the wall panel at both the top and bottom. The prefabricated insulated wall panel 2 also has grooves 29 in the vertical direction at both the left and right ends. The inner width of the groove 29 in the vertical direction between the thickened part 232 at the upper edge and the thickened part 232 at the lower edge of the concrete inner wall panel 24 is greater than the outer width. Multiple non-metallic embedded fasteners 27, which are evenly distributed in the vertical direction and pass through the grooves 29, are pre-embedded between the thickened part 232 at the left edge of the concrete outer wall panel 23 and the opposite concrete inner wall panel 24. Multiple non-metallic embedded fasteners 27, which are evenly distributed in the vertical direction and pass through the grooves 29, are pre-embedded between the thickened part 232 at the right edge of the concrete outer wall panel 23 and the opposite concrete inner wall panel 24.

[0079] Two grooves 29 of two adjacent prefabricated insulated wall panels 2 are joined together to form a cavity. Anchor steel bars 102 and U-shaped steel bars 103 are inserted into the cavity. The U-shaped steel bars 103 are inserted from top to bottom to fix the non-metallic embedded fasteners 27 in the two grooves 29.

[0080] All cavities, through holes 33, and cast-in-place holes are filled with concrete to form hidden column structures. The top and bottom grooves 29 of the precast insulated wall panel 2 are filled with concrete to form hidden beam structures or foundation connection structures, which fix the concrete foundation 1, precast insulated wall panel 2, and precast insulated roof panel 4 together, or fix the concrete foundation 1, precast insulated wall panel 2, precast insulated floor slab 3, and precast insulated roof panel 4 together. The height of the concrete poured in the precast insulated roof panel 4 is flush with the height of the roof panel concrete ribs 36. An insulation filler block 37 is placed on top of the poured concrete to form a continuous insulation structure with the insulation layer 25 in the precast insulated roof panel 4.

[0081] According to the structural requirements of the building, one or more concrete ribs 26 may be provided on the concrete inner wall panel 24 of the precast insulated wall panel 2. The top surface of the concrete rib 26 is flush with the bottom surface of the groove 29 at the top of the precast insulated wall panel 2; the bottom surface of the concrete rib 26 is flush with the bottom surface of the groove 29 at the bottom of the precast insulated wall panel 2; a longitudinal cast-in-place hole 28 is provided in the concrete rib 26, and one end of a portion of the anchoring steel bar 102 in the concrete foundation 1 extends vertically upward into the cast-in-place hole 28. The cast-in-place hole 28 is directly opposite to the through hole 33 on the precast insulated floor slab 3 or the precast insulated roof panel 4.

[0082] The precast insulated roof panel 4 has a concrete outer slab 31 containing steel mesh on its top, bottom, left, right, front, and back surfaces, with an insulation layer 25 wrapped in the middle. The thickness of the insulation layer 25 is greater than the thickness of the concrete outer slab 31, and the thickness of the concrete outer slab 31 is ≤40cm. Multiple uniformly distributed non-metallic embedded fasteners 27 are pre-embedded within the precast insulated roof panel 4. The two ends of each non-metallic embedded fastener 27 are fixed to the steel mesh in the upper and lower concrete outer slabs 31, respectively. The edge of the steel mesh in the lower concrete outer slab 31 is connected to the steel truss 35. The height of the steel truss 35 in the precast insulated roof panel 4 is less than the height of the insulation layer 25. Multiple evenly distributed roof panel concrete ribs 36 are provided on the lower concrete outer slab 31. The height of the roof panel concrete ribs 36 is equal to the height of the steel truss 35 in the precast insulated roof panel 4. Multiple through holes 33 are provided on the precast insulated roof panel 4, which are directly opposite the cavity or the cast-in-place hole 28. The length of the prefabricated insulated roof panel 4 is ≤12m.

[0083] The upper, lower, left, right, front and back surfaces of the prefabricated thermal insulation floor slab 3 are all concrete outer plates 31 containing steel mesh sheets, and a thermal insulation layer 25 is wrapped in the middle. The thickness of the thermal insulation layer 25 is greater than that of the concrete outer plate 31, and the thickness of the concrete outer plate 31 ≤ 40 cm; a plurality of non-metallic embedded fixtures 27 are evenly embedded in the prefabricated thermal insulation floor slab 3, and both ends of the non-metallic embedded fixtures 27 are respectively fixed to the steel mesh sheets in the upper and lower concrete outer plates 31, and the edges of the steel mesh sheets in the upper and lower concrete outer plates 31 are connected together by a steel bar truss 35; a plurality of floor concrete ribs 34 evenly distributed along the length direction are provided on the prefabricated thermal insulation floor slab 3, and the floor concrete ribs 34 divide the thermal insulation layer 25 into multiple parts; a plurality of through holes 33 are provided on the prefabricated thermal insulation floor slab 3 and are opposite to the cavities or the cast-in holes 28. The length of the prefabricated thermal insulation floor slab 3 ≤ 12 m.

[0084] The inner side of the groove 29 is a concrete inner wall panel 24, and the outer side is a thermal insulation layer 25; the upper, lower, left and right four edges of the concrete outer wall panel 23, the thermal insulation layer 25 and the concrete inner wall panel 24 are all flush with each other.

[0085] The concrete inner wall panel 24 of the L-shaped wall panel 21 extends into the thermal insulation layer 25 at the corner to form a corner column 241. The top surface of the corner column 241 is flush with the bottom surface of the groove 29 at the top of the L-shaped wall panel 21; the bottom surface of the corner column 241 is flush with the bottom surface of the groove 29 at the bottom of the L-shaped wall panel 21; a longitudinal cast-in hole 28 is provided in the corner column 241, and the cast-in hole 28 is opposite to the through hole 33 on the prefabricated thermal insulation floor slab 3 or the prefabricated thermal insulation roof slab 4 and is inserted with an anchor bar 102 and filled with concrete.

[0086] The cross-section of the groove 29 between the thickened parts 232 on the left edge and the thickened parts 232 on the right edge of the concrete inner wall panel 24 is rectangular; the thickness of the thermal insulation layer 25 is 20 - 50 cm.

[0087] As Figure 24 shown, the prefabricated thermal insulation roof slab 4 is arranged horizontally. In other embodiments, it can also be arranged obliquely as Figure 1 、 Figure 23 shown or arranged in a "human" shape as Figure 25 shown. When using a prefabricated thermal insulation roof slab arranged obliquely or in a "human" shape, the prefabricated thermal insulation wall panels on the front and rear sides of the house are spliced with rectangular plates, and the prefabricated thermal insulation wall panels on the left and right sides are spliced with right-angled trapezoidal plates.

[0088] The non-metallic embedded fixture 27 is made of FRP fiber reinforced composite material.

[0089] According to the design requirements, door openings or window openings can be provided on the prefabricated thermal insulation wall panel 2.

[0090] The construction method for this rapidly constructed low-rise energy-saving and heat-insulated concrete house is as follows: a concrete foundation 1 is made and anchor steel bars 102 are pre-embedded, or multiple precast concrete foundation slabs with pre-embedded anchor steel bars 102 are spliced ​​together to obtain the concrete foundation 1. Horizontal steel bars 105 are laid in the center of the foundation fixing groove 101. Precast heat-insulated wall panels 2 are hoisted into place in sequence. U-shaped steel bars 103 are inserted into the cavity enclosed by two adjacent precast heat-insulated wall panels 2. Anchor steel bars 102 are inserted into the cast-in-place holes 28 of the precast heat-insulated wall panels 2. Horizontal steel bars 105 are laid in the groove at the top of the precast heat-insulated wall panels 2.

[0091] When the building has only one floor, continue to hoist the prefabricated insulated roof panels 4 into place in sequence, insert anchor steel bars 102 into the through holes 33, and pour cast-in-place concrete 104 into all cavities, grooves 29, through holes 33 and cast-in-place holes 28; the height of the concrete poured in the prefabricated insulated roof panels 4 is flush with the height of the roof panel concrete ribs 36, and an insulation filler block 37 is placed on top of the poured concrete to form a continuous insulation structure with the insulation layer 25 in the prefabricated insulated roof panels 4; sealant 5 is squeezed into all joints;

[0092] When the building has two or three floors, continue to hoist the precast insulated floor slabs 3 into place in sequence, insert anchor bars 102 into the through holes 33, and pour cast-in-place concrete 104 into all cavities, grooves 29, through holes 33, and cast-in-place holes 28; then lay transverse steel bars 105 in the wall panel fixing grooves 32 on the upper surface of the precast insulated floor slabs 3, and continue to hoist the upper precast insulated wall panels 2 into place in sequence; insert U-shaped steel bars 103 into the cavity enclosed by two adjacent precast insulated wall panels 2, insert anchor bars 102 into the cast-in-place holes 28 of the precast insulated wall panels 2, and pour cast-in-place concrete 104 into the grooves at the top of the precast insulated wall panels 2. Lay horizontal reinforcing bars 105; repeat this process until all prefabricated insulated wall panels 2 and prefabricated insulated floor panels 3 are installed; finally, hoist the prefabricated insulated roof panels 4 into place in sequence, insert anchoring reinforcing bars 102 into the through holes 33, and pour cast-in-place concrete 104 into all cavities, grooves 29, through holes 33 and cast-in-place holes 28; the height of the concrete poured in the prefabricated insulated roof panels 4 is flush with the height of the roof panel concrete ribs 36, and an insulation filler block 37 is placed on top of the poured concrete to form a continuous insulation structure with the insulation layer 25 in the prefabricated insulated roof panels 4; filler 5 is squeezed into all joints.

[0093] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A low-rise, energy-efficient, insulated concrete house that can be constructed quickly, characterized in that: The building has ≤3 floors; it includes a concrete foundation (1), multiple prefabricated insulated wall panels (2) and multiple prefabricated insulated roof panels (4); when the number of floors is greater than 1, it also includes multiple prefabricated insulated floor slabs (3); the prefabricated insulated wall panels (2) include L-shaped wall panels (21) and flat wall panels (22); all the prefabricated insulated wall panels (2) together with the insulation layer in the prefabricated insulated roof panels (4) form a continuous insulation structure; The edge of the concrete foundation (1) is provided with a foundation fixing groove (101) for placing the prefabricated insulation wall panel (2). The top, bottom, left and right sides of the prefabricated insulation wall panel (2) are provided with grooves (29). The grooves (29) of two adjacent prefabricated insulation wall panels (2) are joined to form a cavity. Anchor steel bars (102) are pre-embedded in the concrete foundation (1). One end of the anchor steel bar (102) extends vertically upward into the cavity. The upper end of the cavity is directly opposite to the through hole (33) on the prefabricated insulation floor slab (3) or prefabricated insulation roof panel (4) and the anchor steel bar (102) is inserted therein. The upper and lower surfaces of the prefabricated insulated floor slab (3) and the lower surface of the prefabricated insulated roof panel (4) are provided with wall panel fixing grooves (32) for placing the prefabricated insulated wall panel (2). All prefabricated insulated wall panels (2) have horizontal steel bars (105) inserted into the grooves (29) at the top and bottom. According to the construction design requirements, the precast insulation wall panel (2) is also provided with longitudinal concrete ribs, and the concrete ribs are provided with cast-in-place holes. The cast-in-place holes are directly opposite to the through holes (33) on the precast insulation floor panel (3) or the precast insulation roof panel (4), and are inserted with anchoring steel bars (102). The prefabricated insulated wall panel (2) consists of a concrete outer wall panel (23), an insulation layer (25), and a concrete inner wall panel (24) from the outside to the inside. The thickness of the insulation layer (25) is greater than the thickness of the concrete outer wall panel (23) and the concrete inner wall panel (24). The thickness of the concrete outer wall panel (23) and the concrete inner wall panel (24) is ≤40cm. The concrete outer wall panel (23) and the concrete inner wall panel (24) are provided with steel mesh (30). The prefabricated insulated wall panel (2) is pre-embedded with a plurality of uniformly distributed non-metallic embedded fasteners (27). The two ends of the non-metallic embedded fasteners (27) are respectively fixed to the steel mesh (30) in the concrete outer wall panel (23) and the concrete inner wall panel (24). The four edges of the concrete outer wall panel (23) and the concrete inner wall panel (24) are all thickened (232). The inner side of the thickened part (232) shrinks towards the middle of the prefabricated insulation wall panel (2), so that the thickness of the concrete outer wall panel (23) and the concrete inner wall panel (24) at the thickened part (232) increases. The end face of the thickened part (232) of the concrete outer wall panel (23) is a slope (231). The angle between the slope (231) and the outer side of the concrete outer wall panel (23) is an obtuse angle. The prefabricated insulated wall panel (2) has grooves (29) along the direction of the wall panel at its top and bottom. The prefabricated insulated wall panel (2) has grooves (29) along the vertical direction at its left and right ends. The inner width of the groove (29) between the thickened part (232) at the upper edge and the thickened part (232) at the lower edge of the concrete inner wall panel (24) is greater than the outer width. Multiple non-metallic embedded fasteners (27) that are evenly distributed along the vertical direction and pass through the grooves (29) are pre-embedded between the thickened part (232) at the left and right edges of the concrete outer wall panel (23) and the opposite concrete inner wall panel (24). U-shaped steel bars (103) are inserted into the cavity formed by the two grooves (29) of two adjacent prefabricated insulation wall panels (2). The U-shaped steel bars (103) are inserted from top to bottom to fix the non-metallic embedded fasteners (27) in the two grooves (29). All cavities, through holes (33) and cast-in-place holes are filled with concrete to form a hidden column structure. The top and bottom grooves (29) of the precast insulation wall panel (2) are filled with concrete to form a hidden beam structure or foundation connection structure, which fixes the concrete foundation (1), the precast insulation wall panel (2) and the precast insulation roof panel (4) together, or fixes the concrete foundation (1), the precast insulation wall panel (2), the precast insulation floor slab (3) and the precast insulation roof panel (4) together. The height of the concrete poured in the precast insulation roof panel (4) is flush with the height of the roof panel concrete rib (36). An insulation filler block (37) is placed above the poured concrete to form a continuous insulation structure with the insulation layer (25) in the precast insulation roof panel (4).

2. The rapidly constructible low-rise energy-saving and thermally insulated concrete house according to claim 1, characterized in that: The concrete foundation (1) has multiple foundation ribs evenly distributed on its bottom surface. The thickness of the foundation ribs and the left and right edges of the concrete foundation (1) is equal and greater than the thickness of the rest. The concrete foundation (1) is made of cast-in-place concrete or spliced ​​from precast concrete foundation slabs. The concrete foundation (1) contains steel mesh.

3. The rapidly constructible low-rise energy-saving and thermally insulated concrete house according to claim 2, characterized in that: The precast insulated wall panel (2) has one or more concrete ribs (26) on its concrete inner wall panel (24). The top surface of the concrete rib (26) is flush with the bottom surface of the groove (29) at the top of the precast insulated wall panel (2). The bottom surface of the concrete rib (26) is flush with the bottom surface of the groove (29) at the bottom of the precast insulated wall panel (2). The concrete rib (26) has a longitudinal cast-in-place hole (28). One end of a portion of the anchoring steel bar (102) in the concrete foundation (1) extends vertically upward into the cast-in-place hole (28). The cast-in-place hole (28) is directly opposite to the through hole (33) on the precast insulated floor slab (3) or the precast insulated roof panel (4).

4. The rapidly constructible low-rise energy-saving and thermally insulated concrete house according to claim 3, characterized in that: The precast insulated roof panel (4) has a concrete outer slab (31) with steel mesh on its upper, lower, left, right, front, and back surfaces, and is wrapped with an insulation layer (25) in the middle. The thickness of the insulation layer (25) is greater than the thickness of the concrete outer slab (31), and the thickness of the concrete outer slab (31) is ≤40cm. The precast insulated roof panel (4) has a plurality of uniformly distributed non-metallic embedded fasteners (27) embedded in it. The two ends of the non-metallic embedded fasteners (27) are respectively fixed to the steel mesh in the upper and lower concrete outer slabs (31). The lower concrete outer slab (31) has a steel mesh in its inner surface. The edge of the steel mesh is connected to the steel truss (35), and the height of the steel truss (35) in the prefabricated insulated roof panel (4) is less than the height of the insulation layer (25); multiple evenly distributed roof panel concrete ribs (36) are provided on the concrete outer plate (31) below, and the height of the roof panel concrete ribs (36) is equal to the height of the steel truss (35) in the prefabricated insulated roof panel (4); multiple through holes (33) are provided on the prefabricated insulated roof panel (4) that are directly opposite the cavity or the cast-in-place hole (28); the length of the prefabricated insulated roof panel (4) is ≤12m.

5. The rapidly constructible low-rise energy-saving and thermally insulated concrete house according to claim 4, characterized in that: The precast insulated floor slab (3) has a concrete outer slab (31) with steel mesh on its upper, lower, left, right, front, and back surfaces, and is wrapped with an insulation layer (25) in the middle. The thickness of the insulation layer (25) is greater than the thickness of the concrete outer slab (31), and the thickness of the concrete outer slab (31) is ≤40cm. The precast insulated floor slab (3) has multiple uniformly distributed non-metallic embedded fasteners (27) embedded in it. The two ends of the non-metallic embedded fasteners (27) are respectively connected to the steel mesh in the upper and lower concrete outer slabs (31). The reinforcing mesh is fixed together, and the edges of the reinforcing mesh in the upper and lower concrete outer slabs (31) are connected together by a reinforcing truss (35); the precast insulated floor slab (3) is provided with a number of floor slab concrete ribs (34) evenly distributed along the length direction, and the floor slab concrete ribs (34) divide the insulation layer (25) into multiple parts; the precast insulated floor slab (3) is provided with a number of through holes (33) that are directly opposite to the cavity or the cast-in-place hole (28); the length of the precast insulated floor slab (3) is ≤12m.

6. The rapidly constructible low-rise energy-saving and thermally insulated concrete house according to claim 5, characterized in that: The inner side of the groove (29) is a concrete inner wall panel (24), and the outer side is a thermal insulation layer (25); the upper, lower, left and right edges of the concrete outer wall panel (23), the thermal insulation layer (25) and the concrete inner wall panel (24) are all flush with each other.

7. The rapidly constructible low-rise energy-saving and thermally insulated concrete house according to claim 6, characterized in that: The concrete inner wall panel (24) of the L-shaped wall panel (21) extends into the insulation layer (25) at the corner to form a corner column (241). The top surface of the corner column (241) is flush with the bottom surface of the groove (29) at the top of the L-shaped wall panel (21). The bottom surface of the corner column (241) is flush with the bottom surface of the groove (29) at the bottom of the L-shaped wall panel (21). The corner column (241) is provided with a longitudinal cast-in-place hole (28). The cast-in-place hole (28) is directly opposite to the through hole (33) on the precast insulation floor slab (3) or precast insulation roof panel (4), and is filled with anchor steel bars (102) and concrete.

8. The rapidly constructible low-rise energy-saving and thermally insulated concrete house according to claim 7, characterized in that: The groove (29) located between the thickened portion (232) on the left edge and the thickened portion (232) on the right edge of the concrete inner wall panel (24) has a rectangular cross section; the thickness of the insulation layer (25) is 20~50cm.

9. The rapidly constructible low-rise energy-saving and thermally insulated concrete house according to claim 8, characterized in that: The prefabricated insulated roof panels (4) are arranged horizontally, slopingly, or in a herringbone pattern.

10. A construction method for a rapidly conceived low-rise energy-saving and thermally insulated concrete house according to any one of claims 1-9, characterized in that: Concrete foundation (1) is constructed and anchor steel bars (102) are pre-embedded, or multiple precast concrete foundation slabs with pre-embedded anchor steel bars (102) are spliced ​​together to obtain concrete foundation (1). Horizontal steel bars (105) are laid in the center of the foundation fixing groove (101). Precast insulation wall panels (2) are hoisted into place in sequence. U-shaped steel bars (103) are inserted into the cavity enclosed by two adjacent precast insulation wall panels (2). Anchor steel bars (102) are inserted into the cast-in-place hole (28) of the precast insulation wall panel (2). Horizontal steel bars (105) are laid in the groove at the top of the precast insulation wall panel (2). When the building has only one floor, continue to hoist the prefabricated insulated roof panels (4) into place in sequence, insert anchor steel bars (102) into the through holes (33), and pour cast-in-place concrete (104) into all cavities, grooves (29), through holes (33) and cast-in-place holes (28); the height of the concrete poured in the prefabricated insulated roof panels (4) is flush with the height of the roof panel concrete ribs (36), and an insulation filler block (37) is placed on top of the poured concrete to form a continuous insulation structure with the insulation layer (25) in the prefabricated insulated roof panels (4); sealant (5) is squeezed into all joints. When the building has two or three floors, continue to hoist the precast insulated floor slabs (3) into place in sequence, insert anchor bars (102) into the through holes (33), and pour cast-in-place concrete (104) into all cavities, grooves (29), through holes (33) and cast-in-place holes (28); then lay transverse bars (105) in the wall panel fixing grooves (32) on the upper surface of the precast insulated floor slabs (3), and continue to hoist the upper precast insulated wall panels (2) into place in sequence; insert U-shaped bars (103) into the cavity enclosed by two adjacent precast insulated wall panels (2), insert anchor bars (102) into the cast-in-place holes (28) of the precast insulated wall panels (2), and in the grooves at the top of the precast insulated wall panels (2) Lay horizontal steel bars (105) in the middle; repeat the construction in this order until all prefabricated insulated wall panels (2) and prefabricated insulated floor panels (3) are installed; finally, hoist the prefabricated insulated roof panels (4) into place in sequence, insert anchor steel bars (102) in the through holes (33), and pour cast-in-place concrete (104) in all cavities, grooves (29), through holes (33) and cast-in-place holes (28); the height of the concrete poured in the prefabricated insulated roof panels (4) is flush with the height of the roof panel concrete ribs (36), and an insulation filler block (37) is placed on top of the poured concrete to form a continuous insulation structure with the insulation layer (25) in the prefabricated insulated roof panels (4); squeeze sealant (5) into all joints.

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