Building structure based on fabricated components

Abstract

The invention discloses a building structure based on fabricated components. The building structure comprises a building main body, a plurality of prefabricated external wall panels fixedly arranged on an external wall of the building main body, and a plurality of horizontal layered structures arranged in the building main body and used for dividing the internal space of the building main body into multiple layers of building structures; a plurality of prefabricated laminated slabs are arranged in each horizontal layered structure in the plurality of horizontal layered structures; wherein each prefabricated external wall panel in the multiple prefabricated external wall panels is installed according to a first type prefabricated part installation mode, and each prefabricated laminated plate in the multiple prefabricated laminated plates is installed according to a second type prefabricated part installation mode. According to the embodiment of the invention, the prefabricated external wall panel and the prefabricated laminated plate do not need to be subjected to surface treatment on a building construction site, and can be mounted on site according to a prefabricated part mounting mode of a corresponding type, so that the field assembly efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and more particularly to building structures based on prefabricated components. Background Technology

[0002] Prefabricated construction is a core form of industrialized construction, achieving an efficient, green, and sustainable construction model through a combination of factory prefabrication and on-site assembly. Currently, a common technique used on construction sites is the ring-reinforced concrete interlocking anchoring connection, where prefabricated ring-shaped reinforced concrete wall panels are integrated with cast-in-place joints. However, if the four sides of the components are not roughened, poor bonding between the old and new concrete can easily occur, affecting the overall structural integrity. Therefore, it is evident that prefabricated components used in current prefabricated construction require surface treatment on-site to achieve optimal performance, reducing on-site assembly and construction efficiency. Summary of the Invention

[0003] This invention provides a building structure based on prefabricated components, aiming to solve the problem in the existing prefabricated construction method that uses precast ring-shaped reinforced concrete wall panels and cast-in-place joints to form an integral whole. The precast components used need to undergo surface treatment on the construction site to achieve a better performance, which reduces the efficiency of on-site assembly and construction.

[0004] This invention provides a building structure based on prefabricated components, comprising: a building body, a plurality of prefabricated exterior wall panels fixed to the exterior walls of the building body, and a plurality of horizontal layered structures disposed within the building body and used to divide the interior space of the building body into a multi-story building structure; each of the plurality of horizontal layered structures is provided with a plurality of prefabricated composite slabs; wherein, each of the plurality of prefabricated exterior wall panels is installed according to a first type of prefabricated component installation method, and each of the plurality of prefabricated composite slabs is installed according to a second type of prefabricated component installation method.

[0005] Furthermore, each of the plurality of prefabricated exterior wall panels has at least one hanging nail node at its top as a hanging point; and at least one support structure connection embedded part for connecting the inclined support structure is provided on the side wall of the prefabricated exterior wall panel.

[0006] Furthermore, each of the plurality of prefabricated exterior wall panels is installed according to the first type of prefabricated component installation method, including: Place several steel shims on top of the lower structural concrete corresponding to the installation position of the precast exterior wall panel. The hanging nail nodes at the top of the precast exterior wall panel are connected to the tower crane via lifting claws, and the precast exterior wall panel is lifted by the tower crane to the top of the lower structural concrete corresponding to the installation position, and placed above the plurality of steel shims; The precast exterior wall panel is connected to one end of several inclined support structures via embedded parts of a support structure; wherein, the other end of the several inclined support structures is rotatably connected to the lower structure concrete corresponding to the installation position. The precast exterior wall panel is aligned so that it is perpendicular to the horizontal plane of the underlying concrete structure. Separate the hanging nail nodes at the top of the precast exterior wall panel from the hanging claws, and separate the supporting structure connecting embedded parts of the precast exterior wall panel from the plurality of diagonal support structures; Remove the steel shims located at the bottom of the precast exterior wall panel, and seal the tongue and groove between the bottom of the precast exterior wall panel and the top of the lower structural concrete.

[0007] Furthermore, a tongue-and-groove seal is performed between the bottom of the precast exterior wall panel and the top of the underlying structural concrete, including: The tongue and groove joint between the bottom of the precast exterior wall panel and the top of the underlying concrete structure is sealed using foamed polyethylene rods, airtight strips, weather-resistant sealant, and non-shrink mortar.

[0008] Furthermore, if the tongue and groove between the bottom of the precast exterior wall panel and the top of the lower structural concrete is designated as the indoor side of the building body, and the tongue and groove between the bottom of the precast exterior wall panel and the top of the lower structural concrete is designated as the outdoor side, then the weather-resistant sealant is placed in the outdoor side, the non-shrink mortar is placed in the indoor side, the airtight strip is placed in the tongue and groove space between the weather-resistant sealant and the non-shrink mortar near the end of the non-shrink mortar, and the foamed polyethylene rod is placed in the tongue and groove space between the weather-resistant sealant and the non-shrink mortar near the end of the weather-resistant sealant.

[0009] Furthermore, each of the plurality of prefabricated composite slabs has a pre-embedded lifting point on its upper surface.

[0010] Furthermore, each of the plurality of prefabricated composite slabs is installed according to the second type of prefabricated component installation method, including: A ring of double-sided foam adhesive strip is bonded to the outer edge of the prefabricated composite slab. The pre-embedded lifting points on the upper surface of the prefabricated composite slab are connected to the tower crane via hooks, and the prefabricated composite slab is lifted by the tower crane to the installation position corresponding to the horizontal layered structure. Separate the pre-embedded lifting points of the prefabricated composite slab from the lifting hook; Remove the pre-embedded lifting point from the upper surface of the prefabricated composite slab.

[0011] Furthermore, the step of hoisting the precast composite slab to the installation position corresponding to the horizontal layered structure using a tower crane includes: Adjust the angle between the prefabricated composite slab and the hook to be greater than 45°; The precast composite slabs are lifted from their initial stacking location to a distance of 200-300mm from the ground using the tower crane. If it is determined that the tower crane and the precast composite slab are still securely connected by the hook, the tower crane will lift the precast composite slab to a position 500-800mm above the installation location corresponding to the horizontal layered structure. The angle between the prefabricated composite slab and the hook is adjusted to 90°, and the prefabricated composite slab is hoisted to the installation position corresponding to the horizontal layered structure by the tower crane.

[0012] Furthermore, the building structure based on prefabricated components also includes multiple prefabricated interior partitions, which are located within the main building and are used to divide the floor space corresponding to each horizontal layer of the multiple horizontal layered structures into multiple interior compartments; wherein, each of the multiple prefabricated interior partitions is installed according to the installation method of the third type of prefabricated components, and each of the multiple prefabricated interior partitions is an autoclaved lightweight aerated concrete partition wall panel.

[0013] Furthermore, each of the plurality of prefabricated interior partitions is installed according to the third type of prefabricated component installation method, including: The bottom of the prefabricated interior partition wall is connected to the horizontal layered structure at the installation location using multiple pipe clamps, and at the same time, the bottom of the prefabricated interior partition wall is supported by multiple wooden wedges so that the distance between it and the horizontal layered structure at the installation location is 10-20cm. The multiple pipe clamps are fixedly connected to the horizontal layered structure at the installation location by a number of nails corresponding to the number of pipe clamps. The gap between the bottom of the prefabricated interior partition wall and the horizontal layered structure at the installation location is filled with mortar, and the plurality of wooden wedges are removed.

[0014] This invention provides a building structure based on prefabricated components, comprising: a main building body; multiple prefabricated exterior wall panels fixed to the exterior walls of the main building body; and multiple horizontal layered structures disposed within the main building body for dividing the internal space of the main building body into a multi-story building structure. Each of the multiple horizontal layered structures contains multiple prefabricated composite slabs. Each of the multiple prefabricated exterior wall panels is installed according to a first type of prefabricated component installation method, and each of the multiple prefabricated composite slabs is installed according to a second type of prefabricated component installation method. This invention allows for on-site installation of the prefabricated exterior wall panels and prefabricated composite slabs without surface treatment at the construction site, improving on-site assembly efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A structural schematic diagram from the front view of a building structure based on prefabricated components, provided in an embodiment of the present invention; Figure 2 This is a top view of a horizontally layered structure in a building structure based on prefabricated components, provided as an embodiment of the present invention. Figure 3 A first-view structural schematic diagram of a prefabricated exterior wall panel in a building structure based on prefabricated components, provided in an embodiment of the present invention; Figure 4 A second-view structural schematic diagram of a prefabricated exterior wall panel in a building structure based on prefabricated components, provided by an embodiment of the present invention; Figure 5 A schematic diagram of the construction structure of prefabricated exterior wall panels in a building structure based on prefabricated components, provided in an embodiment of the present invention; Figure 6 This is a structural schematic diagram of a prefabricated composite slab in a building structure based on prefabricated components, provided by an embodiment of the present invention. Figure 7 This is a schematic diagram of a prefabricated interior partition wall without connected pipe clamps in a building structure based on prefabricated components, provided in an embodiment of the present invention. Figure 8 This is a schematic diagram of the prefabricated internal partition wall connection pipe clamp in a building structure based on prefabricated components, provided in an embodiment of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0019] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0020] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0021] Please also refer to Figure 1 and Figure 2 , Figure 1 A structural schematic diagram from the front view of a building structure based on prefabricated components, provided in an embodiment of the present invention; Figure 2 This is a top view of a horizontally layered structure in a building structure based on prefabricated components, provided as an embodiment of the present invention. (See diagram below.) Figure 1 and Figure 2 As shown, the building structure based on prefabricated components includes: a main building 10, multiple prefabricated exterior wall panels fixed to the exterior walls of the main building 10, and multiple horizontal layered structures disposed within the main building 10 and used to divide the internal space of the main building 10 into a multi-story building structure; each of the multiple horizontal layered structures 30 is provided with multiple prefabricated composite slabs; wherein, each of the multiple prefabricated exterior wall panels 20 is installed according to a first type of prefabricated component installation method, and each of the multiple prefabricated composite slabs 40 is installed according to a second type of prefabricated component installation method.

[0022] In this embodiment, in order to carry out faster and safer construction at the construction site, multiple prefabricated exterior wall panels and multiple prefabricated composite panels can be produced, processed and inspected in the production workshop first. After being stacked at the construction site according to the stacking requirements (such as storing multiple prefabricated exterior wall panels vertically and producing special vertical storage racks to fix the prefabricated exterior wall panels, and stacking multiple prefabricated composite panels with adjacent panels on top and bottom using wooden blocks as spacers), the assembly construction can then be carried out according to the specific construction drawings.

[0023] Specifically, positioning lines for the prefabricated exterior wall panels, 200mm control lines for the walls of the main building 10, and positioning lines for the prefabricated wall reinforcement can be marked on the base structure surface of the main building 10 (which can be understood as the lowest horizontal layer structure 30 among multiple horizontal layer structures). Elevation control points are then measured using a level and accurately marked on each prefabricated exterior wall panel. Simultaneously, the reserved and embedded positions on each prefabricated exterior wall panel are verified. After completing the above operations, each prefabricated exterior wall panel 20 can be installed sequentially according to the first type of prefabricated component installation method.

[0024] Of course, during the construction of each horizontal layer structure 30 in the multiple horizontal layer structures, in addition to multiple precast composite slabs, there is also a cast-in-place building structure, thus the multiple precast composite slabs and the cast-in-place building structure together form the horizontal layer structure 30. When constructing the multiple precast composite slabs included in each horizontal layer structure 30, each precast composite slab 40 is installed according to the second type of precast component installation method.

[0025] In one embodiment, such as Figures 1-4 As shown, each of the plurality of prefabricated exterior wall panels 20 has at least one hanging nail node 21 on its top as a hanging point; and at least one support structure connecting embedded part 22 for connecting the inclined support structure is provided on the side wall of the prefabricated exterior wall panel 20.

[0026] In this embodiment, taking the structure of one of the precast exterior wall panels 20 as an example, the top of the precast exterior wall panel 20 is provided with at least one lifting nail node 21 as a lifting point. The lifting nail node 21 is used when the precast exterior wall panel 20 is lifted by the tower crane at the construction site to the top of the corresponding lower structural concrete at the installation position. After being lowered by the tower crane, at least one inclined support structure can be connected to the embedded part 22 of the support structure for subsequent on-site assembly. The structures of other precast exterior wall panels are also based on the above structure, and will not be described in detail here.

[0027] In one embodiment, each of the plurality of prefabricated exterior wall panels is installed according to a first type of prefabricated component installation method, including: Place several steel shims on top of the lower structural concrete corresponding to the installation position of the precast exterior wall panel. The hanging nail nodes at the top of the precast exterior wall panel are connected to the tower crane via lifting claws, and the precast exterior wall panel is lifted by the tower crane to the top of the lower structural concrete corresponding to the installation position, and placed above the plurality of steel shims; The precast exterior wall panel is connected to one end of several inclined support structures via embedded parts of a support structure; wherein, the other end of the several inclined support structures is rotatably connected to the lower structure concrete corresponding to the installation position. The precast exterior wall panel is aligned so that it is perpendicular to the horizontal plane of the underlying concrete structure. Separate the hanging nail nodes at the top of the precast exterior wall panel from the hanging claws, and separate the supporting structure connecting embedded parts of the precast exterior wall panel from the plurality of diagonal support structures; Remove the steel shims located at the bottom of the precast exterior wall panel, and seal the tongue and groove between the bottom of the precast exterior wall panel and the top of the lower structural concrete.

[0028] In this embodiment, the specific process for installing each prefabricated exterior wall panel according to the first type of prefabricated component installation method is as follows: A1) As Figure 3 and Figure 4 As shown, several steel shims are placed on top of the lower structural concrete (which is the part cast on site in the main building) corresponding to the installation position of the precast exterior wall panel 20. Specifically, there are two sets of steel shims (with a cross-sectional size of 40 mm × 40 mm and a thickness of 1 mm, 2 mm and 5 mm). If the height of the top of the lower structural concrete near the outside is lower than the height near the inside, each of the two sets of steel shims is set on the top of the lower structural concrete near the outside and the top of the lower structural concrete near the inside, respectively. The stacking thickness of the two steel shims is determined by the elevation control point marked on the lower structural concrete. If the elevation control point marked on the lower structural concrete is denoted as Hi, then the elevation of the uppermost steel shim on the top of the lower structural concrete near the outside is Hi + 0.2 m, and the elevation of the uppermost steel shim on the top of the lower structural concrete near the inside is Hi + 0.25 m. A2) Since the prefabricated exterior wall panel 20 has pre-embedded hanging nail nodes 21 during production and can be connected to the tower crane through lifting claws and wire ropes during hoisting, the hanging nail nodes 21 at the top of the prefabricated exterior wall panel 20 can be connected to the tower crane through lifting claws and wire ropes, and the prefabricated exterior wall panel 20 can be hoisted to the top of the lower structure concrete corresponding to the installation position by the tower crane, and placed above the plurality of steel pads; A3) The precast exterior wall panel is connected to one end of several inclined support structures 23 via embedded parts of the support structure. For details, please refer to... Figure 4 Furthermore, the other end of each of the several inclined support structures is rotatably connected to the lower structure concrete corresponding to the installation position; there are also pre-embedded connectors on the lower structure concrete to connect with the end of the several inclined support structures that is not connected to the support structure. A4) After connecting the embedded parts of several diagonal support structures to the support structure of the precast exterior wall panels, it is also necessary to check the position, verticality, and flatness of the precast exterior wall panels. If there are any deviations, adjustments can be made using the diagonal support structures, tower cranes, and related tools. Specifically, for vertical wall panel direction (Y direction) correction, the short steel pipe diagonal bracing adjustment rod of the diagonal support structure can be used to fine-tune the root of the precast exterior wall panel to control the Y direction position. For parallel wall panel direction (X direction) correction, the wall panel position line and control axis can be marked on the lower structural concrete to correct the wall panel position. After the precast exterior wall panels are in place according to the position lines, if there are any deviations that need to be adjusted, fine adjustments can be made on the side of the precast exterior wall panels using pry bars. It should be noted that during the above adjustment process, the hanging nail node 21 at the top of the precast exterior wall panel is not disengaged from the lifting claw, wire rope, and tower crane to avoid accidents caused by the precast exterior wall panel falling. A5) After verifying the position, verticality, and flatness of the precast exterior wall panel, the hanging nail nodes at the top of the precast exterior wall panel can be separated from the hanging claws, and the supporting structure connecting embedded parts of the precast exterior wall panel can be separated from the several inclined support structures; wherein, during the above-mentioned demolition process, an A-frame ladder can be placed on the lower structural concrete on the indoor side of the precast exterior wall panel for safe operation. A6) Remove the plurality of steel shims located at the bottom of the precast exterior wall panel 20, and seal the tongue and groove between the bottom of the precast exterior wall panel 20 and the top of the lower structural concrete; specifically, foamed polyethylene rods, airtight strips, weather-resistant sealant and non-shrink mortar can be used for the operation.

[0029] As can be seen, after completing the above operations, the on-site assembly of a prefabricated exterior wall panel can be completed. Afterwards, the above process can be used to complete the installation of other prefabricated exterior wall panels at other corresponding positions on the exterior wall of the main building.

[0030] During the installation process described above, the following points should also be noted: B1) Before installing the precast exterior wall panels, the base layer of the lower structural concrete corresponding to the installation location should be cleaned first. After rinsing and removing any debris, steel shims should be used for leveling. B2) The prefabricated exterior wall panels are hoisted into place using a method of rough installation followed by fine adjustment; B3) Permanent fasteners of prefabricated components on prefabricated exterior wall panels (such as hanging nail nodes 21 and embedded parts for supporting structure connections 22 are not permanent fasteners, but parts that can be removed after assembly) must be protected against corrosion and concealed. B4) When installing the lifting device for the hanging nail node 21 of the precast exterior wall panel, check whether there are quality defects such as honeycomb, pitting, and cracking in the concrete around the hanging nail node 21 of the precast exterior wall panel that affect the load-bearing capacity of the hanging nail. When the angle between the precast exterior wall panel and the wire rope is less than 45 degrees, or when there are 4 (usually an even number) or more hanging nails on the precast exterior wall panel, a steel spreader should be used. B5) When placing the precast exterior wall panels, observe the front and back of the precast exterior wall panels. Select appropriate steel shims to level the precast exterior wall panels according to the thickness and position of the pads marked on the ground of the lower structure concrete. After the precast exterior wall panels are placed, use diagonal support structures to fix the precast exterior wall panels (the horizontal projection of the diagonal support structure should be perpendicular to the precast exterior wall panels during installation). After placement, fill the horizontal joints on the inner side of the precast exterior wall panels. B6) Gap control, that is, the horizontal gap between the precast exterior wall panel and the corresponding lower structural concrete at the installation location is controlled according to the elevation (the elevation must be strictly controlled otherwise it will directly affect the vertical gap). The vertical gap can be controlled according to the wall panel end line of the precast exterior wall panel, or a pad of appropriate width (determined according to the width of the vertical gap) can be placed at the end of the adjacent panel for control. B7) When adjusting the verticality of the precast exterior wall panel, all the diagonal support structures that are fixed to the precast exterior wall panel and are movable must be rotated at the same time, and it is strictly forbidden to rotate one outward and one inward; if the precast exterior wall panel still needs to be adjusted but the diagonal support structure cannot be rotated, it is strictly forbidden to rotate it by force; when the diagonal support structure is rotated, its exposed length of the screw should be observed at all times to avoid the screw from separating from the rotating rod. B8) When hoisting precast exterior wall panels, personnel installing the upper bolts of the inclined support structure and those retrieving the hooks must wear safety belts; B9) After the prefabricated exterior wall panels are hoisted, their elevation, verticality, horizontal and vertical joints, etc. should be checked in a comprehensive manner. When checking the gable wall, it should not be checked separately, but the entire facade should be checked. B10) Deviation adjustment: If deviations are found in the exterior wall panels that have been completed on the upper floor during hoisting of this floor, if the deviation is less than 5mm, it can be adjusted back to its original position in one go on this floor. If the deviation is greater than 5mm, it should be adjusted in two (two floors) or more times. When adjusting, the verticality and positioning line should be adjusted at the same time, and adjacent panels should also be adjusted appropriately.

[0031] In one embodiment, a tongue-and-groove sealing is performed between the bottom of the precast exterior wall panel and the top of the underlying structural concrete, including: The tongue and groove joint between the bottom of the precast exterior wall panel and the top of the underlying concrete structure is sealed using foamed polyethylene rods, airtight strips, weather-resistant sealant, and non-shrink mortar.

[0032] In this embodiment, when sealing the tongue and groove between the bottom of the precast exterior wall panel and the top of the lower structural concrete using foamed polyethylene rods, airtight strips, weather-resistant sealant, and non-shrink mortar, φ30 foamed polyethylene rods are specifically used, 20×25MS weather-resistant sealant is specifically used, and 20×20 non-shrink mortar is specifically used.

[0033] In one embodiment, such as Figure 5 As shown, if the tongue and groove between the bottom of the precast exterior wall panel 20 and the top of the lower structural concrete is referred to as the tongue and groove closer to the interior side of the main building, and the tongue and groove closer to the exterior side of the main building is referred to as the tongue and groove, then the weather-resistant sealant 24 is placed in the exterior tongue and groove, the non-shrink mortar 25 is placed in the interior tongue and groove, the airtight strip 26 is placed in the tongue and groove space between the weather-resistant sealant 24 and the non-shrink mortar 25 near one end of the non-shrink mortar 25, and the foamed polyethylene rod 27 is placed in the tongue and groove space between the weather-resistant sealant 24 and the non-shrink mortar 25 near one end of the weather-resistant sealant 24.

[0034] In this embodiment, the tongue and groove joint between the bottom of the precast exterior wall panel 20 and the top of the lower structural concrete is designated as the indoor side of the building structure, and the tongue and groove joint closer to the exterior side of the building structure is designated as the outdoor side. Generally, the indoor side tongue and groove joint is higher than the outdoor side tongue and groove joint (i.e., higher inside and lower outside). The weather-resistant sealant 24 is placed in the outdoor side tongue and groove joint (with a thickness of not less than 25mm), the non-shrink mortar 25 is placed in the indoor side tongue and groove joint (with a thickness of not less than 20mm), the airtight strip 26 is placed in the tongue and groove space between the weather-resistant sealant 24 and the non-shrink mortar 25 near one end of the non-shrink mortar 25, and the foamed polyethylene rod 27 is placed in the tongue and groove space between the weather-resistant sealant 24 and the non-shrink mortar 25 near one end of the weather-resistant sealant 24. Therefore, the tongue and groove joint can be effectively sealed using the above method.

[0035] In one embodiment, such as Figure 1 , Figure 2 and Figure 6 As shown, each of the multiple prefabricated composite slabs 40 has a pre-embedded lifting point 41 on its upper surface.

[0036] In this embodiment, multiple embedded lifting points 41 are provided on the upper surface of the precast composite slab 40 to facilitate connection with a tower crane. Specifically, the tower crane is connected to the multiple embedded lifting points 41 via wire ropes and hooks with safety buckles, so as to evenly distribute the force and lift the slabs from multiple points in a balanced manner. The structures of other precast composite slabs are also based on the above structure, and will not be described in detail here.

[0037] In one embodiment, each of the plurality of prefabricated composite slabs is installed according to a second type of prefabricated component installation method, including: A ring of double-sided foam adhesive strip is bonded to the outer edge of the prefabricated composite slab. The pre-embedded lifting points on the upper surface of the prefabricated composite slab are connected to the tower crane via hooks, and the prefabricated composite slab is lifted by the tower crane to the installation position corresponding to the horizontal layered structure. Separate the pre-embedded lifting points of the prefabricated composite slab from the lifting hook; Remove the pre-embedded lifting point from the upper surface of the prefabricated composite slab.

[0038] In this embodiment, the specific process for installing each precast composite slab according to the second type of precast component installation method is as follows: C1) A double-sided foam strip is adhered to the outer edge of the precast composite slab 40; C2) Since each precast composite slab has multiple embedded lifting points 41 on its upper surface, the tower crane can be connected to the multiple embedded lifting points 41 via wire ropes and hooks with safety buckles. It is necessary to ensure that the angle between the hook and the floor slab is greater than a certain angle. When hoisting to the installation position corresponding to the current horizontal layer structure, the slab should be slowly lowered to complete the installation. It should be noted that if the precast composite slab is located near the edge of the current horizontal layer structure, it should be installed first, i.e., from the edge to the center. Moreover, the bottom reinforcement of the beam must be tied before hoisting the precast composite slab. The top reinforcement of the beam at the corresponding position can only be installed and tied after hoisting. C3) After the precast composite slab is installed in place at the corresponding installation position of the current horizontal layered structure, the pre-embedded lifting points of the precast composite slab are separated from the lifting hooks; moreover, after the precast composite slab is unhooked and in place, the thrown anchoring steel bars are promptly tidied up to ensure that they extend into the post-pouring strip to a sufficient length. C4) Remove the pre-embedded lifting points from the upper surface of the precast composite slab. After that, the precast composite slab can be inspected to avoid unevenness, gaps, etc. on the lower edge of the precast composite slab. Gaps at the supports that cannot be adjusted in some areas should be sealed. The support frame can be adjusted appropriately to keep the bottom surface of the precast composite slab flat and without gaps.

[0039] After the precast composite slabs are hoisted and aligned, the reinforcing bars of the precast composite slabs extend into the beam (wall) side formwork beyond the beam, and double-sided foam strips are applied to the top of the cast-in-place beam (slab) side formwork and both sides of the post-cast strip to prevent grout leakage.

[0040] In one embodiment, the step of hoisting the precast composite slab to the installation position corresponding to the horizontal layered structure using a tower crane includes: Adjust the angle between the prefabricated composite slab and the hook to be greater than 45°; The precast composite slabs are lifted from their initial stacking location to a distance of 200-300mm from the ground using the tower crane. If it is determined that the tower crane and the precast composite slab are still securely connected by the hook, the tower crane will lift the precast composite slab to a position 500-800mm above the installation location corresponding to the horizontal layered structure. The angle between the prefabricated composite slab and the hook is adjusted to 90°, and the prefabricated composite slab is hoisted to the installation position corresponding to the horizontal layered structure by the tower crane.

[0041] In this embodiment, during the process of hoisting the precast composite slab to the installation position corresponding to the horizontal layered structure using a tower crane, a trial hoisting is first required. This involves adjusting the angle between the precast composite slab and the hook to greater than 45°, and then using the tower crane to lift the precast composite slab from its initial stacking position to a distance of 200-300mm from the ground. At this point, it is necessary to check whether the hook is twisted or jammed, and to check whether the force on the hoisting points of the precast composite slab is uniform and whether the PC component (i.e., precast concrete component) is stable. If there are no abnormalities, subsequent operations can proceed. Then, the precast composite slab is vertically hoisted by the tower crane to a position 500-800mm above the installation location corresponding to the horizontal layered structure. After the PC components in the precast composite slab are stable, the construction workers manually adjust the position of the PC components, adjusting the angle between the precast composite slab and the hook to 90°, and slowly lower it to the installation location corresponding to the horizontal layered structure. During the above process, the precast composite slab should be lowered slowly and steadily to avoid rapid and forceful lowering, so as to avoid excessive impact force causing cracks on the surface of the precast composite slab and deformation of the shear wall and beam formwork.

[0042] In one embodiment, such as Figure 1 , Figure 2 and Figure 7As shown, the building structure based on prefabricated components also includes multiple prefabricated interior partitions. These multiple prefabricated interior partitions are located within the main building structure and are used to divide the floor space corresponding to each horizontal layer structure 30 in the multiple horizontal layer structures into multiple interior compartments. Each prefabricated interior partition 50 is installed according to the third type of prefabricated component installation method, and each prefabricated interior partition 50 is an autoclaved lightweight aerated concrete partition wall panel.

[0043] In this embodiment, after the prefabricated exterior wall panels 20 and prefabricated composite slabs 40 are assembled on-site in a building structure based on prefabricated components, multiple prefabricated interior partitions can be vertically installed on each horizontal layer structure 30 within the main building structure. This divides the floor space of the corresponding horizontal layer structure (which is considered the space between the current horizontal layer structure and the previous horizontal layer structure) into multiple interior compartments, thereby achieving more spatial division of the building structure. Moreover, each of the multiple prefabricated interior partitions 50 is installed according to the third type of prefabricated component installation method, and each of the multiple prefabricated interior partitions is an autoclaved lightweight concrete partition wall panel (abbreviated as ALC wall panel, ALC stands for Autoclaved Lightweight Concrete).

[0044] In one embodiment, each of the plurality of prefabricated interior partitions is installed according to a third type of prefabricated component installation method, including: The bottom of the prefabricated interior partition wall is connected to the horizontal layered structure at the installation location using multiple pipe clamps, and at the same time, the bottom of the prefabricated interior partition wall is supported by multiple wooden wedges so that the distance between it and the horizontal layered structure at the installation location is 10-20cm. The multiple pipe clamps are fixedly connected to the horizontal layered structure at the installation location by a number of nails corresponding to the number of pipe clamps. The gap between the bottom of the prefabricated interior partition wall and the horizontal layered structure at the installation location is filled with mortar, and the plurality of wooden wedges are removed.

[0045] In this embodiment, the installation process of a prefabricated interior partition wall is taken as an example, and the specific process is as follows: D1) Connect the bottom of the prefabricated internal partition wall 50 to the horizontal layered structure at the installation location using multiple pipe clamps 51 (specifically made of Q235B galvanized material with a minimum thickness of 3mm), and simultaneously support the bottom of the prefabricated internal partition wall 50 with multiple wooden wedges 52 so that the distance between it and the horizontal layered structure at the installation location is 10-20cm, as shown in the details. Figure 7 and Figure 8As shown; moreover, before the above installation is carried out, the base layer of the horizontal layered structure at the installation location can be cleaned, the precast internal partition wall 50 can be positioned and the positioning line can be drawn, and then a hole can be drilled at the pipe clamp insertion position 80mm away from the end of the precast internal partition wall 50 with a 10mm twist drill. If the base layer is uneven, a 1:3 cement mortar can be used to level it first; after that, the pipe clamp 51 is inserted into the corresponding hole along the thickness direction of the precast internal partition wall 50, and the precast internal partition wall 50 is erected and installed at the corresponding positioning line using a plate erecting machine, and the position of the pipe clamp is adjusted so that it is centered and perpendicular to the side of the precast internal partition wall 50; D2) The plurality of pipe clamps 51 are fixedly connected to the horizontal layered structure at the installation location by a number of nails corresponding to the plurality of pipe clamps 51. More specifically, the steel plate of each pipe clamp is fixedly connected to the horizontal layered structure at the installation location by two nails with a length of 25mm. D3) Finally, the gap between the bottom of the prefabricated interior partition wall and the horizontal layered structure at the installation location is filled with mortar (specifically ALC special mortar), and the plurality of wooden wedges 52 are removed.

[0046] Once the installation of one prefabricated interior partition wall is completed, the installation process for other prefabricated interior partition walls can refer to the above construction and assembly process, but the specific installation locations will differ.

[0047] As can be seen, the embodiments of the present invention can install prefabricated exterior wall panels and prefabricated composite panels on the construction site without surface treatment, and can be installed on-site according to the installation method of the corresponding type of prefabricated components, thereby improving on-site assembly efficiency.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A building structure based on prefabricated components, characterized in that, The system includes a main building structure, multiple prefabricated exterior wall panels fixed to the exterior walls of the main building structure, and multiple horizontal layered structures disposed within the main building structure to divide the interior space of the main building structure into a multi-story building structure; each of the multiple horizontal layered structures is provided with multiple prefabricated composite slabs; wherein, each of the multiple prefabricated exterior wall panels is installed according to a first type of prefabricated component installation method, and each of the multiple prefabricated composite slabs is installed according to a second type of prefabricated component installation method.

2. The building structure based on prefabricated components according to claim 1, characterized in that, Each of the plurality of prefabricated exterior wall panels has at least one hanging nail node on its top as a hanging point. Furthermore, at least one pre-embedded support structure for connecting the inclined support structure is provided on the side wall of the prefabricated exterior wall panel.

3. The building structure based on prefabricated components according to claim 2, characterized in that, Each of the plurality of prefabricated exterior wall panels is installed according to the first type of prefabricated component installation method, including: Place several steel shims on top of the lower structural concrete corresponding to the installation position of the precast exterior wall panel. The hanging nail nodes at the top of the precast exterior wall panel are connected to the tower crane via lifting claws, and the precast exterior wall panel is lifted by the tower crane to the top of the lower structural concrete corresponding to the installation position, and placed above the plurality of steel shims; The precast exterior wall panel is connected to one end of several inclined support structures via embedded parts of a support structure; wherein, the other end of the several inclined support structures is rotatably connected to the lower structure concrete corresponding to the installation position. The precast exterior wall panel is aligned so that it is perpendicular to the horizontal plane of the underlying concrete structure. Separate the hanging nail nodes at the top of the precast exterior wall panel from the hanging claws, and separate the supporting structure connecting embedded parts of the precast exterior wall panel from the plurality of diagonal support structures; Remove the steel shims located at the bottom of the precast exterior wall panel, and seal the tongue and groove between the bottom of the precast exterior wall panel and the top of the lower structural concrete.

4. The building structure based on prefabricated components according to claim 3, characterized in that, The tongue and groove joint between the bottom of the precast exterior wall panel and the top of the underlying concrete structure is sealed, including: The tongue and groove joint between the bottom of the precast exterior wall panel and the top of the underlying concrete structure is sealed using foamed polyethylene rods, airtight strips, weather-resistant sealant, and non-shrink mortar.

5. The building structure based on prefabricated components according to claim 4, characterized in that, If the tongue and groove between the bottom of the precast exterior wall panel and the top of the lower structural concrete is designated as the indoor side of the building structure, and the tongue and groove between the bottom of the precast exterior wall panel and the top of the lower structural concrete is designated as the outdoor side, then the weather-resistant sealant is placed in the outdoor side, the non-shrink mortar is placed in the indoor side, the airtight strip is placed in the tongue and groove space between the weather-resistant sealant and the non-shrink mortar near the end of the non-shrink mortar, and the foamed polyethylene rod is placed in the tongue and groove space between the weather-resistant sealant and the non-shrink mortar near the end of the weather-resistant sealant.

6. The building structure based on prefabricated components according to claim 1, characterized in that, Each of the multiple prefabricated composite slabs has a pre-embedded lifting point on its upper surface.

7. The building structure based on prefabricated components according to claim 6, characterized in that, Each of the plurality of precast composite slabs is installed according to the second type of precast component installation method, including: A ring of double-sided foam adhesive strip is bonded to the outer edge of the prefabricated composite slab. The pre-embedded lifting points on the upper surface of the prefabricated composite slab are connected to the tower crane via hooks, and the prefabricated composite slab is lifted by the tower crane to the installation position corresponding to the horizontal layered structure. Separate the pre-embedded lifting points of the prefabricated composite slab from the lifting hook; Remove the pre-embedded lifting point from the upper surface of the prefabricated composite slab.

8. The building structure based on prefabricated components according to claim 7, characterized in that, The step of hoisting the precast composite slab to the installation position corresponding to the horizontal layered structure using a tower crane includes: Adjust the angle between the prefabricated composite slab and the hook to be greater than 45°; The precast composite slabs are lifted from their initial stacking location to a distance of 200-300mm from the ground using the tower crane. If it is determined that the tower crane and the precast composite slab are still securely connected by the hook, the tower crane will lift the precast composite slab to a position 500-800mm above the installation location corresponding to the horizontal layered structure. The angle between the prefabricated composite slab and the hook is adjusted to 90°, and the prefabricated composite slab is lifted by the tower crane to the installation position corresponding to the horizontal layered structure.

9. The building structure based on prefabricated components according to claim 1, characterized in that, It also includes multiple prefabricated interior partitions, which are located within the main building structure and are used to divide the floor space corresponding to each of the multiple horizontal layered structures into multiple interior compartments; wherein, each of the multiple prefabricated interior partitions is installed according to the third type of prefabricated component installation method, and each of the multiple prefabricated interior partitions is an autoclaved lightweight aerated concrete partition wall panel.

10. The building structure based on prefabricated components according to claim 9, characterized in that, Each of the multiple prefabricated interior partitions is installed according to the third type of prefabricated component installation method, including: The bottom of the prefabricated interior partition wall is connected to the horizontal layered structure at the installation location using multiple pipe clamps, and at the same time, the bottom of the prefabricated interior partition wall is supported by multiple wooden wedges so that the distance between it and the horizontal layered structure at the installation location is 10-20cm. The multiple pipe clamps are fixedly connected to the horizontal layered structure at the installation location by a number of nails corresponding to the number of pipe clamps. The gap between the bottom of the prefabricated interior partition wall and the horizontal layered structure at the installation location is filled with mortar, and the plurality of wooden wedges are removed.

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