Prefabrication method for layered wall that can integrate tile and heat insulation layer without breakage

Abstract

To provide a prefabrication method for a layered wall that can integrate tiles and a heat insulation layer without breakage.SOLUTION: A layered wall cantilevers a tile and a mold on both sides of a core concrete layer to form a structure which has rigidity like a core tube steel structure and also allows elastic deformation, a heat insulation layer is charged between the tile and core concrete layer and connected with a precast outer support rod to be completely cast, layer by layer, without inversion, wherein the title is not broken owing to inversion, sandwiched between the heat insulation layer with elasticity and a mold for another layered wall to be securely hardly broken during warehouse storage / transportation, and also securely hardly broken in crane assembly, the heat insulation layer is sandwiched inside to be securely hardly dropped or broken, and a wind leak and a cold bridge are evaded with the precast outer support rod. On casting the core concrete layer, operations to connect with an outer support tile layer, block the cold bridge, and block convection are completed, so that the method is simple and easy to operate.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to the technical field of building walls, in particular to a method for prefabricating laminated walls that allows the non-destructive integration of tiles and thermal insulation layers. [Background technology]

[0002] A laminated wall is a semi-prefabricated wall similar to a laminated plate. The plates on both sides of the wall are cast in a prefabricated factory, and the two layers of plates are connected with a rebar cage. After transportation to the site, concrete is filled between the two layers of plates to form a complete wall.

[0003] Laminated walls are two layers of concrete connected together by a reinforcing bar cage, and there are two prefabricated methods for them: one is to use a core mold and leave a cavity in the concrete, dividing the horizontally poured concrete into two layers when prefabricated; the other is to pour one layer horizontally and at the same time insert a reinforcing bar cage, then turn it over after hardening and pour another layer underneath. Because the quality of laminated walls produced by the first method is low (when such a very small core mold is pulled out, it often causes cracks or serious adhesion), the second method is mainly used at present.

[0004] In an ideal situation, the less concrete in the prefabricated parts of half prefabricated building components such as laminated walls and laminated plates, the better, which can greatly reduce the amount of work involved in warehousing, transportation, and crane assembly, but in actual operation, this is not the case. Whether it is a laminated plate or a laminated wall, the concrete in its prefabricated parts is usually 10 cm thick in a single layer. This is because the laminated plate or laminated wall is a single plate with a huge area in order to improve construction efficiency, and the large area results in low rigidity, and these prefabricated plate-like building materials cannot be protected by an insert frame like glass, and the strength of the concrete is also significantly lower than that of metal or glass, so the prefabricated parts of such plates must be thickened to prevent damage during movement or collision. In addition, in addition to the movement or collision that may occur during warehousing, transportation, and crane assembly, there are various problems due to core-type pullout or inversion at the prefabricated stage (in this case, the concrete is not cured to its maximum strength), so the concrete in the prefabricated parts can be thicker and can account for more than half of the thickness of the entire wall.

[0005] Additionally, the construction and manufacturing process of laminate walls also poses great challenges in integrating the tiles and thermal insulation layers into the wall. For prefabricated walls, integrating tiles and a heat-insulating layer on the upper surface can greatly reduce the amount of on-site construction work, but the structure of a half prefabricated wall itself, such as a laminated wall, is not very suitable for integrating tiles or a heat-insulating layer. Regarding the insulation layer, if it is installed on the outside of the laminated wall, it is easy to fall off or be damaged during transportation and installation; if it is installed inside, it will be repeatedly pierced by the pull bars in the rebar cage, and the ventilation holes (the rebar and the insulation layer are not tightly bonded and there are gaps around) will cause convection heat loss, and the rebar will form cold bridges.

[0006] Considering that tiles need to be inverted like baked visco during the manufacturing process of a laminated wall and that collisions will inevitably occur, if the tiles are installed on the outer surface of a layer of concrete that was poured first, they will be destroyed during the inversion process unavoidably (because the concrete has not cured to its maximum strength at this time, the tiles are likely to fall off or form hollow bulges), and if the tiles are installed on the outer surface of a layer of concrete that was poured later, they will be destroyed or hit by the laminated wall that is inverted and knocked down.

[0007] Concrete formwork is mainly wooden and has elastic properties, and even if it is a steel formwork, it often has elastic structures such as square steel pipe horizontal ribs and back pegs. Summary of the Invention

[0008] The present invention provides a method of prefabricating laminate walls that allows for non-destructive integration of tiles and thermal insulation layers.

[0009] The problem to be solved is that when tiles and a thermal insulation layer are integrated into a laminated wall, the tiles are easily broken or dropped off, and cold bridges and convection heat loss occur in the thermal insulation layer.

[0010] In order to solve the above technical problems, the present invention adopts the following technical solution: A prefabricated method for a laminated wall that can integrate tiles and a thermal insulation layer without destruction, which is used to integrate the tiles and the thermal insulation layer into the laminated wall and avoid destruction or falling off of the tiles, and cold bridges or convection heat loss of the thermal insulation layer, the laminated wall includes a core concrete layer, an outer supporting tile layer cantilevered by a precast outer supporting rod on the side of the core concrete layer close to the outside of the building, an inner supporting formwork cantilevered by an integrated inner supporting rod on the side of the core concrete layer close to the inside of the building, a pre-drilled thermal insulation layer provided between the core concrete layer and the outer supporting tile layer, and a steel cage provided between the core concrete layer and the inner supporting formwork; Between the outer support tile layer and the pre-opened thermal insulation layer, a precast adhesive layer is filled for bonding the outer support tile layer and the pre-opened thermal insulation layer, the precast adhesive layer is a cement mortar with a steel screen or an exterior wall tile adhesive with the steel screen, the precast adhesive layer is integrally connected to the core concrete layer by the precast outer support rod, the precast outer support rod is drilled into the preliminary hole on the pre-opened thermal insulation layer, and includes an outer support rod tension core whose both ends are located in the core concrete layer and the precast adhesive layer, and concrete filled in the gap outside the outer support rod tension core and integrally connected to the core concrete layer and the precast adhesive layer, and a clamp sheet for sandwiching the pre-opened thermal insulation layer is removably fixed to the outer support rod tension core, The integrated inner support rod has one end protruding inside the inner support form to form a cavity for pouring concrete when assembled on site, and the other end is attached to the core concrete layer and removably fixedly connected to one of the outer support rod tension cores, and the inner support form is removably fixedly connected to the integrated inner support rod, The prefabrication method comprises: Step 1: laying the tiles in a back-up position on a horizontal mould table and levelling them to form the outer support tile layer and temporarily fixing the edges of the outer support tile layer; Step 2: laying the steel screen on the outer support tile layer and casting the precast adhesive layer; Step 3: laying the pre-opened thermal insulation layer, anchoring the outer support rod tensile core into the pre-cured precast adhesive layer along the pre-opened thermal insulation layer, and clamping the upper and lower sides of the pre-opened thermal insulation layer with the clamp sheet; Step 4: placing the rebar cage on the insulation layer of the pre-drilled hole and attaching the integrated inner support rod; Step 5 of pouring the core concrete layer, the concrete in the core concrete layer flows down along the preliminary hole on the thermal insulation layer of the preliminary hole, and is integrally connected with the precast adhesive layer that has not yet been finally cured, and the concrete in the preliminary hole forms the precast outer support rod together with the outer support rod tension core; and step 6 of attaching the inner support form to the integral inner support rod.

[0011] Furthermore, in step 1, first, a side mold that is provided around the outer support tile layer is attached to the mold table, a release agent, a plastic film, an isolation cloth or an isolation paper is laid in the side mold, the tile is then laid on a horizontal mold table with its back facing up in the side mold and leveled to form the outer support tile layer, and after the outer support tile layer is leveled, the upper surface is washed, and in step 2, the precast adhesive layer is poured while the upper surface of the outer support tile layer is wet.

[0012] Furthermore, the outer support rod tension core is provided with a position limiting protrusion or a position limiting locking slot to prevent the clamp sheet from sliding up and down, the preliminary hole on the thermal insulation layer of the preliminary hole is a rectangular hole, and among the two clamp sheets on the same outer support rod tension core, the lower clamp sheet is a rectangular plate smaller than the preliminary hole so as to easily pass through the preliminary hole, the length of the lower clamp sheet is larger than the width of the cross section of the rectangular hole, and the upper clamp sheet is larger than the preliminary hole to prevent it from falling. In step 3, the clamp sheet is first attached to the outer support rod tensile core, and then the outer support rod tensile core is penetrated into the pre-opening thermal insulation layer along the preliminary hole on the pre-opening thermal insulation layer, and when the lower clamp sheet reaches below the pre-opening thermal insulation layer, the outer support rod tensile core is rotated 90 degrees around the outer support rod tensile core itself as an axis, so that the clamp sheet is engaged below the pre-opening thermal insulation layer.

[0013] Furthermore, the outer support rod tension core includes a U-shaped core for connecting the rebar cage and the precast adhesive layer, a plug core for connecting the integrated inner support rod and the precast adhesive layer, and a pull core for connecting the core concrete layer and the precast adhesive layer, and the lower ends of the outer support rod tension cores are all arrowheads for enhancing the pull-out force through the preliminary holes on the thermal insulation layer of the preliminary holes, the U-shaped cores are fitted into the rebar cage and do not have the clamp sheet on their sides, the upper end of the plug core is screwed into the lower end of the integrated inner support rod, and the upper end of the pull core is wavy, threaded or bridgehead-shaped for enhancing the pull-out force. The reinforcing bar cage includes two layers of reinforcing bar mesh and a pull rod between the two layers of reinforcing bar mesh for connecting the two layers together, the first layer of reinforcing bar mesh being embedded in the core concrete layer, and both ends of the pull rod being bent into hooks that bite into the reinforcing bar mesh. The plug core and the pull core are anchored into the precast adhesive layer before initial hardening in step 3, and the U-shaped core is inserted into one of the reinforcing bars of the lower layer reinforcing bar network and anchored into the precast adhesive layer before initial hardening after the reinforcing bar cage is positioned and the height is adjusted in step 4.

[0014] Furthermore, the inner support formwork is an integral metal formwork with square tube cross ribs and square tube back pegs, or an integral wooden formwork with square timber cross ribs and square timber back pegs, or a wooden formwork without cross ribs and back pegs, and the inner support formwork is removably fixedly connected to the precast outer support rods by countersunk screws or bolts with flexible nut protective caps, and during storage and transportation, the outer support tile layer is sandwiched between the pre-opened thermal insulation layer and the inner support formwork of another of the laminated walls.

[0015] Additionally, the concrete within the precast outer support rods is a thermally insulating concrete and the outer support rod tensile core is a fiberglass reinforced plastic material.

[0016] In step 2, a screen block is provided between the outer supporting tile layer and the pre-drilled thermal insulation layer to control the precast adhesive layer and ensure that the steel screen is located in the center of the precast adhesive layer, and a slot is opened in the screen block to match the steel screen, and the steel screen is inserted into the slot and supported by the screen block during the casting of the precast adhesive layer. When the laminated wall is used as the outer wall of a high-rise building, the outer supporting tile layer is fixedly connected to the screen block in step 2 by bolt fastening or slot and tenon connection method.

[0017] Furthermore, a release layer is provided on the inside of the inner support formwork to prevent the concrete from being unable to be released after being poured between the inner support formwork and the core concrete layer, and the release layer is a release agent, a plastic film, an isolation cloth or an isolation paper.

[0018] The prefabricated method of laminated walls, which allows non-destructive integration of tiles and thermal insulation layers according to the present invention, has the following beneficial effects compared to the prior art: In the present invention, the prefabricated concrete layer on one side of the laminated wall is replaced by a formwork, and the tiles are suspended on the other side by precast outer support rods, forming a structure that is rigid and somewhat elastically deformable, such as a core-tube steel building, without the need for inversion during the casting process. During the prefabrication stage, it is less likely to be destroyed because it does not need to be inverted. During the warehousing / transportation stage, the tiles are less likely to be destroyed because they are sandwiched between the insulation layer and the formwork of another laminated wall (both of which are elastic). During the crane assembly stage, the tiles are also less likely to be destroyed because the insulation layer is between them and the parts that bear the force (core concrete layer and rebar cage). This allows the tiles to be integrated into the laminated wall. The insulation layer is sandwiched between the core concrete layer and the tiles, and is not easy to fall off or break, and at the same time, the connection member penetrating the insulation layer is a precast outer support rod (composed of concrete and inner glass fiber reinforced plastic core), which not only ensures a reliable connection (not connected only by the adhesive force of concrete like traditional embedded members, but is directly molded into the concrete of these two parts), but also prevents wind leakage and cold bridges (thermal conductivity of insulation concrete and glass fiber reinforced plastic is much lower than that of metal). Therefore, under the premise of ensuring that the tiles are not destroyed and the insulation effect of the insulation layer is not adversely affected, integrating the tiles and insulation layer into the laminated wall greatly reduces the amount of work required for on-site construction. In the present invention, by adjusting the relative positions of each part and the selected materials, it is possible to realize that no additional steps are required, and the operations of pouring the core concrete layer and connecting the core concrete layer with the outer supporting tile layer (the outer supporting rod tensile core is fine and insufficient to complete the connection independently), breaking cold bridges, and breaking convection are completed. In the present invention, the laminated wall requires only one layer of prefabricated concrete, the amount of concrete in the prefabricated portion of the laminated wall is greatly reduced, and the self-weight is reduced to less than half of that of a normal laminated wall. In the present invention, in the process of prefabricating a laminated wall, no inversion device is required, and the production cycle is significantly shortened (there is no need to wait until the first layer of concrete hardens), and at the same time, the yield is improved to a certain extent (there is no destruction of part of the laminated wall due to inversion). [Brief description of the drawings]

[0019] [Figure 1] 1 is a flow chart of a method for prefabricating a laminated wall with non-destructive integration of tiles and thermal insulation layers according to the present invention. [Diagram 2] FIG. 2 is a structural schematic diagram of a prefabricated method for a laminated wall that can integrate tiles and a thermal insulation layer without destroying the tiles of the present invention. [Diagram 3] Exploded view of the outer support rod tension core structure. [Figure 4] FIG. 13 is a schematic diagram showing the relative positions of the preliminary holes on the thermal insulation layer of the preliminary holes and the clamp seat at the bottom of the outer support rod tension core. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] As shown in Figures 1 and 2, the prefabricated method for laminated walls, which can integrate tiles and a thermal insulation layer without destruction, is used to integrate tiles and a thermal insulation layer into a laminated wall and avoid destruction or falling off of tiles, cold bridges or convection heat loss in the thermal insulation layer, and the laminated wall includes a core concrete layer 1, an outer supporting tile layer 2 cantilevered on the side of the core concrete layer 1 closer to the outside of the building by precast outer supporting rods 6, an inner supporting formwork 3 cantilevered on the side of the core concrete layer 1 closer to the inside of the building by integrated inner supporting rods 7, a pre-drilled thermal insulation layer 4 provided between the core concrete layer 1 and the outer supporting tile layer 2, and a reinforcing bar cage 8 provided between the core concrete layer 1 and the inner supporting formwork 3. This core concrete layer 1 corresponds to one layer of concrete in a normal laminated wall, and the other layers of concrete are replaced by the inner support formwork 3. The inner support means that it is located inside the building, and the builder can directly work inside the building, and there is no need to work at height. Since this inner support formwork 3 is already integrated into the laminated wall at the prefabricated stage, there is no need to assemble formwork when it is constructed on site, and the on-site installation process of the laminated wall is the same as that of a normal laminated wall. The difference is that there is no need to install tiles and a heat-insulating layer, and at the same time, the inner support formwork 3 only needs to be removed after the concrete has hardened (removing the formwork is a quick and labor-saving operation).

[0021] This core concrete layer 1 corresponds to one layer of concrete in a normal laminated wall, and therefore has a relatively high rigidity, and together with the inner support formwork 3 and the outer support tile layer 2 on both sides, which have a relatively low rigidity but a certain elasticity (the outer support tile layer 2 is blocked, and is allowed to deform like a brick, and after deformation, it returns to its original position due to the restraint by the outer support rod tension core 61 and the outer support tile layer 2, so is described as having elasticity), it constitutes a structure similar to a core-tube steel structure building. This core concrete layer 1 corresponds to the core tube, the inner support formwork 3 and the outer support tile layer 2 correspond to the steel structure on the periphery of the building, and the intermediate connecting structure corresponds to the beams of the building.

[0022] Between the outer support tile layer 2 and the pre-opened thermal insulation layer 4, a precast adhesive layer 5 is filled for bonding the outer support tile layer 2 and the pre-opened thermal insulation layer 4, the precast adhesive layer 5 being a cement mortar with a steel screen 51 or an exterior wall tile adhesive with a steel screen 51, the precast adhesive layer 5 being integrally connected to the core concrete layer 1 by a precast outer support rod 6, the precast outer support rod 6 being drilled into a preliminary hole on the pre-opened thermal insulation layer 4, and including an outer support rod tensile core 61 with both ends located in the core concrete layer 1 and the precast adhesive layer 5, respectively, and concrete filled in the gap outside the outer support rod tensile core 61 and integrally connected to the core concrete layer 1 and the precast adhesive layer 5, and a clamp sheet 62 for clamping the pre-opened thermal insulation layer 4 is removably fixed to the outer support rod tensile core 61. Here, the precast adhesive layer 5 containing the steel screen 51 and the precast outer support rod 6 containing the outer support rod tensile core 61 cooperate to form a structure that not only can fix the tiles, but also prevents the tiles from falling even if cracks occur in the precast adhesive layer 5. The precast adhesive layer 5 where the cracks occur is located inside and cannot be seen from the outside, so it does not adversely affect the decorative effect. This is particularly suitable for tiles, which are used by joining one by one and are not integrated, so that the distortions generated by the force of the tiles and the precast adhesive layer 5 both appear in the precast adhesive layer 5, and the precast adhesive layer 5 allows the cracks to occur and dissipates the external force after the cracks occur. That is, the precast adhesive layer 5 is a structure that not only plays the role of adhesion, but is also consumed to protect the tiles whose outer surface is easily destroyed. At the same time, the concrete part in the outer support rod tensile core 61 of the precast outer support rod 6 can also be blocked.

[0023] One end of the integrated inner support rod 7 is supported inside the inner support formwork 3 to form a cavity for pouring concrete during on-site assembly, and the other end is attached to the core concrete layer 1 and removably fixedly connected to one of the outer support rod tension cores 61, and the inner support formwork 3 is removably fixedly connected to the integrated inner support rod 7. Considering that in the case of prefabricated buildings, the inner support formwork 3 is supported entirely by the integrated inner support rod 7, if the pre-opened insulation layer 4 is flexible, it will cause the pre-opened insulation layer 4 to be dented, which is detrimental to insulation, so it is necessary to connect it integrally to one outer support rod tensile core 61 and support the integrated inner support rod 7 by the one outer support rod tensile core 61 and the concrete around it.

[0024] The prefabrication method includes the following steps 1 to 6. Step 1: Lay the tiles with their backs facing up on a horizontal mould table and level them to form an outer support tile layer 2, and temporarily fix the edges of the outer support tile layer 2. Before the subsequent concrete curing is completed, the tiles are in a movable state and if they are disturbed during this process, the tiles on the laminated wall will shift and be difficult to correct, so their edges must be fixed on the mold table.

[0025] Step 2: Lay a steel screen 51 on the outer supporting tile layer 2 and pour the precast adhesive layer 5. The precast adhesive layer 5 should be made of cement mortar with good adhesion or a dedicated "exterior wall tile adhesive", which is made of cellulose, quartz sand, rubber powder and high-strength cement, and the steel screen 51 in the precast adhesive layer 5 may be replaced with a glass fiber screen, etc.

[0026] Step 3: Lay the pre-drilled thermal insulation layer 4, anchor the outer support rod tensile core 61 into the uncured precast adhesive layer 5 along the pre-drilled holes on the pre-drilled thermal insulation layer 4, and clamp the upper and lower sides of the pre-drilled thermal insulation layer 4 with the clamp sheets 62. The precast outer support rod 6 is used not only to connect the tiles, but also to connect the pre-opened insulation layer 4, but this pre-cast outer support rod 6 cannot restrict the pre-opened insulation layer 4 from sliding on the rod, and it is not suitable to restrict the position by the tiles, which increases the load that the tiles receive during use, so it is necessary to provide a clamp sheet 62 to restrict the position. The clamp sheet 62 not only pulls the pre-opened insulation layer 4, but also prevents the outer support rod tension core 61 from falling during casting. The clamp sheet 62 has a crack opened in it to prevent the concrete from being stopped, and makes it easy to attach the clamp sheet 62 to the outer support rod tension core 61.

[0027] Step 4: Place the rebar cage 8 on the pre-drilled insulation layer 4 and install the integrated inner support rod 7. Note that this rebar cage 8 needs to be raised with other objects, in this embodiment it is raised with concrete blocks to ensure that there is a sufficient rebar protection layer outside the rebar cage 8.

[0028] Step 5: Pouring the core concrete layer 1. The concrete in the core concrete layer 1 flows down along the preliminary holes on the pre-drilled insulation layer 4 and is integrally connected to the unfinally hardened precast adhesive layer 5. The concrete in the preliminary holes forms the precast outer support rod 6 together with the outer support rod tensile core 61. Here, due to the relative positions of each component and the prefabrication process that does not require inversion, no additional steps are required, and the connection is completed directly by the concrete in the core concrete layer 1 that flows down (the outer support rod tension core 61 is fine and insufficient to complete the connection independently), blocking cold bridges and blocking convection.

[0029] The pouring of the core concrete layer 1 should be carried out after the initial hardening of the precast adhesive layer 5, or the integrated inner support rod 7 should be tied to the rebar cage 8 to prevent the integrated inner support rod 7 from shifting when the core concrete layer 1 is poured.

[0030] Step 6: Install the inner support form 3 on the integrated inner support rod 7. For this step, the sequence can be adjusted according to the situation of the on-site concrete curing equipment. If the on-site concrete curing equipment can still cure the core concrete layer 1 after installing the inner support form 3, the installation of the inner support form 3 can be performed prior to the curing of the core concrete layer 1, thus ensuring that the core concrete layer 1 is cured in a shaded and windless environment. If the on-site concrete curing equipment cannot cure the core concrete layer 1 after installing the inner support form 3, the inner support form 3 should be installed after completing the curing of the core concrete layer 1.

[0031] In step 1, first, a side mold that is provided around the outer support tile layer 2 is attached to the mold table, and a release agent, a plastic film, an isolation cloth or an isolation paper is laid in the side mold. Next, the tile is laid on the horizontal mold table with its back facing up in the side mold and leveled to form the outer support tile layer 2. After the outer support tile layer 2 is leveled, its upper surface is washed, and in step 2, a precast adhesive layer 5 is poured while the upper surface of the outer support tile layer 2 is wet.

[0032] This ensures that the backside of the tile is dust free and wet before contacting the precast adhesive layer 5, thereby ensuring a strong bond between the two.

[0033] As shown in Figures 3-4, the outer support rod tension core 61 is provided with a position limiting protrusion or a position limiting locking slot to prevent the clamp sheet 62 from sliding up and down, and the preliminary hole on the thermal insulation layer 4 of the preliminary opening is a rectangular hole, and of the two clamp sheets 62 on the same outer support rod tension core 61, the lower clamp sheet 62 is a rectangular plate smaller than the preliminary hole so as to easily pass through the preliminary hole, the length of the lower clamp sheet 62 is greater than the width of the cross section of the rectangular hole, and the upper clamp sheet 62 is greater than the preliminary hole to prevent it from falling. In step 3, the clamp sheet 62 is first attached to the outer support rod tension core 61, and then the outer support rod tension core 61 is penetrated into the pre-opened insulation layer 4 along the preliminary holes on the pre-opened insulation layer 4. When the lower clamp sheet 62 reaches below the pre-opened insulation layer 4, the outer support rod tension core 61 is rotated 90 degrees around the outer support rod tension core 61 itself as an axis, thereby engaging the clamp sheet 62 below the pre-opened insulation layer 4.

[0034] Here, it should be noted that the clamp sheet 62 and the outer support rod tension core 61 cannot be attached to the pre-opened heat-insulating layer 4, and then the pre-opened heat-insulating layer 4 is placed on the pre-cast adhesive layer 5. In practice, it can be seen that, in this way, the clamp sheet 62 cannot penetrate the hole on the pre-opened heat-insulating layer 4, but it will cause the problem that the outer support rod tension core 61 is misaligned, because the outer support rod tension core 61 is loosely fitted into the hole on the pre-opened heat-insulating layer 4, and will be distorted after its lower end is inserted into the pre-cast adhesive layer 5.

[0035] The outer support rod tension core 61 includes a U-shaped core for connecting the rebar cage 8 and the precast adhesive layer 5, a plug core for connecting the integrated inner support rod 7 and the precast adhesive layer 5, and a pull core for connecting the core concrete layer 1 and the precast adhesive layer 5. The lower end of the outer support rod tension core 61 is an arrowhead for enhancing the pull-out force through the preliminary holes on the pre-opened thermal insulation layer 4. The U-shaped core is fitted into the rebar cage 8 and has no clamp sheet 62 on the side. The upper end of the plug core is screwed into the lower end of the integrated inner support rod 7, and the upper end of the pull core is wavy, threaded or bridgehead-shaped for enhancing the pull-out force. The U-shaped core and the pull core respectively integrally connect the concrete and rebar cage 8 in the core concrete layer 1 with the precast adhesive layer 5 to ensure a reliable connection. The plug core can support the integrated inner support rod 7 to prevent it from tilting when the core concrete layer 1 is cast.

[0036] The reinforcing bar cage 8 includes two layers of reinforcing bar mesh and a pull bar disposed between the two layers of reinforcing bar mesh to connect the two layers together. One layer of reinforcing bar mesh is embedded in the core concrete layer 1, and both ends of the pull bar are bent into hooks that bite into the reinforcing bar mesh. These hooks must support the reinforcing bar mesh in the upper layer to prevent it from falling.

[0037] The plug core and pull core are anchored into the unhardened precast adhesive layer 5 in step 3, and the U-shaped core is inserted into one of the reinforcing bars of the lower layer of reinforcing bar network and anchored into the unhardened precast adhesive layer 5 after the reinforcing bar cage 8 is placed and the height is adjusted in step 4.

[0038] The inner support formwork 3 is an integral metal formwork with square tube cross ribs and square tube back pegs, or an integral wooden formwork with square timber cross ribs and square timber back pegs, or a wooden formwork without cross ribs and back pegs, and the inner support formwork 3 is removably fixedly connected to the precast outer support rods 6 by countersunk screws or bolts with flexible nut protective caps, and in the warehouse interpolation and transportation state, the outer support tile layer 2 is sandwiched between the pre-drilled thermal insulation layer 4 and the inner support formwork 3 of another laminated wall.

[0039] This is primarily to ensure that during storage and transport there are no elements in the inner support form 3 which come into contact with the tiles which could crush the tiles.

[0040] The concrete in the precast outer support rod 6 is heat-retaining concrete (concrete using aggregate with low thermal conductivity such as pumice or foam concrete), and the outer support rod tensile core 61 is made of glass fiber reinforced plastic material, which can effectively block cold bridges, and of course, ordinary concrete and steel outer support rod tensile core 61 can also play this role, because ordinary concrete also has low thermal conductivity, and at the same time, the outer support rod tensile core 61 is thin (the main body that bears the force is the outer concrete, which itself only needs sufficient tensile strength), so the heat conduction is not significant.

[0041] In step 2, a screen block 52 is provided between the outer supporting tile layer 2 and the pre-opened thermal insulation layer 4 to control the precast adhesive layer 5 and ensure that the steel screen 51 is located in the middle of the precast adhesive layer 5. The screen block 52 is provided with a slot to accommodate the steel screen 51, and the steel screen 51 is inserted into the slot and supported by the screen block 52 during the casting process of the precast adhesive layer 5. When the laminated wall is used as the outer wall of a high-rise building, the outer supporting tile layer 2 is fixedly connected to the screen block 52 in step 2 by bolt fastening or slot tenon connection. This meets the safety requirements of the Chinese national standard for the use of tiles in high-rise buildings. The slot tenon connection refers to opening an oblique slot in the tile and providing a tenon in the screen block 52 that is inserted into the oblique slot. In this embodiment, a cross-shaped slot is opened at the bottom of the screen block 52, and the crossing position of the steel mesh sheet is tightly locked in the slot and then connected to the tile, so that the tile is securely pulled by the steel screen 51.

[0042] A release layer is provided on the inside of the inner supporting formwork 3 to prevent the concrete from being unable to be released after being poured between the inner supporting formwork 3 and the core concrete layer 1, and the release layer is a release agent, a plastic film, an isolation cloth or an isolation paper. The above examples are merely intended to illustrate preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the design concept of the present invention should fall within the scope of protection defined by the claims of the present invention. [Explanation of symbols]

[0043] 1-core concrete layer, 2-outer support tile layer, 3-inner support formwork, 4-pre-drilled insulation layer, 5-precast adhesive layer, 51-steel screen, 52-screen block, 6-precast outer support rod, 61-outer support rod tensile core, 62-clamp sheet, 7-integrated inner support rod, 8-reinforced steel cage

Claims

1. A method for prefabricating laminated walls that allows tiles and insulation layers to be integrated without destruction, comprising the steps of: This is used to integrate the tiles and the thermal insulation layer into the laminated wall and avoid the destruction or falling off of the tiles, and the cold bridge or convection heat loss of the thermal insulation layer, and the laminated wall includes a core concrete layer (1), an outer supporting tile layer (2) cantilevered on the side of the core concrete layer (1) closer to the outside of the building by precast outer supporting rods (6), an inner supporting formwork (3) cantilevered on the side of the core concrete layer (1) closer to the inside of the building by integrated inner supporting rods (7), a pre-drilled thermal insulation layer (4) provided between the core concrete layer (1) and the outer supporting tile layer (2), and a reinforcing bar cage (8) provided between the core concrete layer (1) and the inner supporting formwork (3); Between the outer support tile layer (2) and the pre-opened heat insulation layer (4), a pre-cast adhesive layer (5) is filled to bond the outer support tile layer (2) and the pre-opened heat insulation layer (4), the pre-cast adhesive layer (5) is a cement mortar with a steel screen (51) or an exterior wall tile adhesive with the steel screen (51), the pre-cast adhesive layer (5) is integrally connected with the core concrete layer (1) by the pre-cast outer support rod (6), and the pre-cast outer support rod (6) is a pre-cast adhesive layer (5) for bonding the outer support tile layer (2) and the pre-opened heat insulation layer (4). The side support rod (6) includes an outer support rod tensile core (61) drilled into the preliminary hole on the pre-opened heat-insulating layer (4) and both ends located in the core concrete layer (1) and the precast adhesive layer (5), respectively, and concrete filled in the gap outside the outer support rod tensile core (61) and integrally connected to the core concrete layer (1) and the precast adhesive layer (5), and a clamp sheet (62) for clamping the pre-opened heat-insulating layer (4) is removably fixed to the outer support rod tensile core (61); The integrated inner support rod (7) has one end protruding inside the inner support form (3) to form a cavity for pouring concrete during on-site assembly, and the other end is attached to the core concrete layer (1) and removably fixedly connected to one of the outer support rod tension cores (61), and the inner support form (3) is removably fixedly connected to the integrated inner support rod (7), The prefabrication method comprises: Step 1: laying the tiles on a horizontal mould table in a back-up position and levelling them to form the outer support tile layer (2) and temporarily fixing the edges of the outer support tile layer (2); Step 2: laying the steel screen (51) on the outer supporting tile layer (2) and casting the precast adhesive layer (5); Step 3: laying the pre-drilled thermal insulation layer (4), anchoring the outer support rod tensile core (61) in the pre-hardened precast adhesive layer (5) along the pre-drilled holes on the pre-drilled thermal insulation layer (4), and clamping the pre-drilled thermal insulation layer (4) on both the top and bottom sides with the clamp sheet (62); Step 4: placing the rebar cage (8) on the pre-drilled insulation layer (4) and attaching the integrated inner support rod (7); Step 5 of pouring the core concrete layer (1), in which the concrete in the core concrete layer (1) flows down along the preliminary holes on the pre-opened insulation layer (4) and is integrally connected with the pre-hardened precast adhesive layer (5), and the concrete in the preliminary holes forms the precast outer support rod (6) together with the outer support rod tension core (61); and step 6 of attaching the inner support form (3) to the integral inner support rod (7), In step 1, first, a side mold provided around the outer support tile layer (2) is attached to the mold table, and a release agent, a plastic film, an isolation cloth or an isolation paper is laid in the side mold. Next, the tile is laid on a horizontal mold table in the side mold with its back facing up and leveled to form the outer support tile layer (2). After the outer support tile layer (2) is leveled, the upper surface is cleaned. In step 2, the precast adhesive layer (5) is poured while the upper surface of the outer support tile layer (2) is wet. The outer support rod tension core (61) is provided with a position limiting protrusion or a position limiting locking slot to prevent the clamp sheet (62) from sliding up and down, the preliminary hole on the thermal insulation layer (4) of the preliminary opening is a rectangular hole, the lower clamp sheet (62) of the two clamp sheets (62) on the same outer support rod tension core (61) is a rectangular plate smaller than the preliminary hole so as to easily pass through the preliminary hole, the length of the lower clamp sheet (62) is greater than the width of the cross section of the rectangular hole, and the upper clamp sheet (62) is greater than the preliminary hole to prevent it from falling; In step 3, the clamp sheet (62) is first attached to the outer support rod tension core (61), and then the outer support rod tension core (61) is penetrated into the pre-opening thermal insulation layer (4) along the preliminary hole on the pre-opening thermal insulation layer (4). When the lower clamp sheet (62) reaches below the pre-opening thermal insulation layer (4), the outer support rod tension core (61) is rotated 90 degrees around the axis of itself to lock the clamp sheet (62) below the pre-opening thermal insulation layer (4); The outer support rod tension core (61) includes a U-shaped core for connecting the rebar cage (8) and the precast adhesive layer (5), a plug core for connecting the integrated inner support rod (7) and the precast adhesive layer (5), and a pull core for connecting the core concrete layer (1) and the precast adhesive layer (5), and the lower end of the outer support rod tension core (61) is an arrowhead for enhancing the pull-out force through the preliminary hole on the pre-opened thermal insulation layer (4), the U-shaped core is fitted into the rebar cage (8) and has no clamp seat (62) on its side, the upper end of the plug core is screwed into the lower end of the integrated inner support rod (7), and the upper end of the pull core is wavy, threaded or bridgehead shaped for enhancing the pull-out force; The reinforcing bar cage (8) includes two layers of reinforcing bar mesh and a tension rod between the two layers of reinforcing bar mesh for connecting the two layers of reinforcing bar mesh together, the first layer of reinforcing bar mesh is embedded in the core concrete layer (1), and both ends of the tension rod are bent into hooks that bite into the reinforcing bar mesh, The plug core and the pull core are anchored in the precast adhesive layer (5) that has not yet hardened in step 3, and the U-shaped core is fitted into one reinforcing bar of the lower layer reinforcing bar network and anchored in the precast adhesive layer (5) that has not yet hardened in step 4 after the reinforcing bar cage (8) is placed and its height is adjusted in step 4. This is a prefabricated method for a laminated wall that can integrate tiles and a thermal insulation layer without destroying them, characterized in that

2. 2. The method for prefabricating laminated walls capable of integrating tiles and thermal insulation layers without destruction, as claimed in claim 1, characterized in that the inner support form (3) is an integral metal form with square tube cross ribs and square tube back pegs, or an integral wooden form with square timber cross ribs and square timber back pegs, or a wooden form without cross ribs and back pegs, the inner support form (3) is removably fixedly connected to the precast outer support rods (6) by countersunk screws or bolts with flexible nut protective caps, and in the storage and transportation state, the outer support tile layer (2) is sandwiched between the pre-drilled thermal insulation layer (4) and the inner support form (3) of another laminated wall.

3. 2. The method for prefabricating a laminated wall capable of integrating tiles and a thermal insulation layer without destroying the tiles as claimed in claim 1, characterized in that the concrete in the precast outer support rods (6) is thermal insulation concrete, and the outer support rod tensile core (61) is made of glass fiber reinforced plastic material.

4. 2. The method for prefabricating a laminated wall capable of integrating tiles and thermal insulation layers without destroying them, as claimed in claim 1, characterized in that in step 2, a screen block (52) is provided between the outer supporting tile layer (2) and the pre-opened thermal insulation layer (4) to control the precast adhesive layer (5) and ensure that the steel screen (51) is located in the center of the precast adhesive layer (5), the screen block (52) has a slot to fit the steel screen (51), the steel screen (51) is inserted into the slot and supported by the screen block (52) during the casting of the precast adhesive layer (5), and when the laminated wall is used as the outer wall of a high-rise building, the outer supporting tile layer (2) is fixedly connected to the screen block (52) in step 2 by bolt fastening or slot and tenon connection method.

5. The prefabrication method for a laminated wall capable of integrating tiles and a thermal insulation layer without destroying the tiles as described in claim 1, characterized in that a release layer is provided on the inside of the inner support form (3) to prevent the concrete from being unable to be released after pouring between the inner support form (3) and the core concrete layer (1), and the release layer is a release agent, a plastic film, an isolation cloth or an isolation paper.

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