Building structure based on prefabricated components

Abstract

The application discloses a building structure based on fabricated components, which comprises a building main body, a plurality of prefabricated outer wall plates fixed on the outer wall of the building main body, and a plurality of horizontal layering structures arranged in the building main body and used for dividing the internal space of the building main body into a multi-layer building structure; each of the plurality of horizontal layering structures is provided with a plurality of prefabricated laminated plates; wherein each of the plurality of prefabricated outer wall plates is installed according to a first type of prefabricated component installation mode, and each of the plurality of prefabricated laminated plates is installed according to a second type of prefabricated component installation mode. The embodiment of the application can improve the on-site assembly efficiency without the need of surface treatment of the prefabricated outer wall plates and the prefabricated laminated plates, and the prefabricated outer wall plates and the prefabricated laminated plates can be installed on site according to the corresponding type of prefabricated component installation mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated building, and particularly to a building structure based on prefabricated components. BACKGROUND

[0002] Prefabricated building is the core form of building industrialization, and realizes efficient, green and sustainable construction mode through factory prefabrication and on-site assembly. At present, the commonly used ring bar buckling anchoring technology is used in the construction site, that is, the prefabricated ring-shaped reinforced concrete wall plate is combined with the cast-in-place joint to form a whole, but if the four sides of the component are not roughened, the new and old concrete combination will be poor, which will affect the integrity of the structure. It can be seen that the prefabricated parts used in the current prefabricated building construction still need to be surface treated after being used in the construction site, which reduces the on-site assembly and construction efficiency. SUMMARY

[0003] The embodiment of the present application provides a building structure based on prefabricated components, which aims to solve the problem that the prefabricated parts used in the current prefabricated building construction still need to be surface treated after being used in the construction site, which reduces the on-site assembly and construction efficiency.

[0004] The embodiment of the present application provides a building structure based on prefabricated components, which includes a building main body, a plurality of prefabricated outer wall plates fixed to the outer wall of the building main body, and a plurality of horizontal layering structures arranged in the building main body and used for dividing the internal space of the building main body into a multi-layer building structure; each horizontal layering structure in the plurality of horizontal layering structures is provided with a plurality of prefabricated composite boards; wherein each prefabricated outer wall plate in the plurality of prefabricated outer wall plates is installed according to a first type of prefabricated component installation mode, and each prefabricated composite board in the plurality of prefabricated composite boards is installed according to a second type of prefabricated component installation mode.

[0005] Further, the top of each prefabricated outer wall plate in the plurality of prefabricated outer wall plates is provided with at least one lifting lug node as a lifting point; and at least one support structure connection embedded part for connecting the inclined support structure is arranged on the side wall of the prefabricated outer wall plate.

[0006] Further, each prefabricated outer wall plate in the plurality of prefabricated outer wall plates is installed according to a first type of prefabricated component installation mode, which includes:

[0007] Placing a plurality of steel shims on the top of the corresponding lower structure concrete at the installation position of the prefabricated outer wall plate;

[0008] connecting the lifting lug node at the top of the prefabricated external wall panel to a tower crane, and hoisting the prefabricated external wall panel to the top of the corresponding underlying structure concrete at the installation position by the tower crane and above the steel pads;

[0009] connecting the prefabricated external wall panel to one end of the plurality of inclined support structures through the support structure connecting embedded part, wherein the other end of the plurality of inclined support structures is rotationally connected to the corresponding underlying structure concrete at the installation position;

[0010] correcting the prefabricated external wall panel to be perpendicular to the horizontal plane of the underlying structure concrete;

[0011] separating the lifting lug node at the top of the prefabricated external wall panel from the lifting lug, and separating the support structure connecting embedded part of the prefabricated external wall panel from the plurality of inclined support structures;

[0012] removing the plurality of steel pads at the bottom of the prefabricated external wall panel, and performing a tongue-and-groove seal between the bottom of the prefabricated external wall panel and the top of the underlying structure concrete.

[0013] Further, the tongue-and-groove seal between the bottom of the prefabricated external wall panel and the top of the underlying structure concrete comprises:

[0014] performing the tongue-and-groove seal between the bottom of the prefabricated external wall panel and the top of the underlying structure concrete by foamed polyethylene rods, air-tight strips, weather-resistant sealant, and non-shrinkage mortar.

[0015] Further, if the side of the tongue-and-groove closer to the indoor side of the building main body is recorded as the indoor side tongue-and-groove, and the side of the tongue-and-groove closer to the outdoor side of the building main body is recorded as the outdoor side tongue-and-groove, the weather-resistant sealant is arranged in the outdoor side tongue-and-groove, the non-shrinkage mortar is arranged in the indoor side tongue-and-groove, the air-tight strip is arranged at one end of the tongue-and-groove space between the weather-resistant sealant and the non-shrinkage mortar closer to the non-shrinkage mortar, and the foamed polyethylene rod is arranged at one end of the tongue-and-groove space between the weather-resistant sealant and the non-shrinkage mortar closer to the weather-resistant sealant.

[0016] Further, the upper surface of each prefabricated composite panel in the plurality of prefabricated composite panels is provided with a pre-embedded lifting point.

[0017] Further, each prefabricated composite panel in the plurality of prefabricated composite panels is installed according to a second type of prefabricated component installation method, comprising:

[0018] adhering a circle of double-sided foam adhesive tape to the outer edge of the prefabricated composite panel;

[0019] connecting the pre-embedded lifting point on the upper surface of the prefabricated composite slab to the hook of the tower crane, and lifting the prefabricated composite slab to the corresponding installation position of the horizontal layered structure by the tower crane;

[0020] disconnecting the pre-embedded lifting point of the prefabricated composite slab from the hook;

[0021] removing the pre-embedded lifting point from the upper surface of the prefabricated composite slab.

[0022] Further, the lifting of the prefabricated composite slab to the corresponding installation position of the horizontal layered structure by the tower crane comprises:

[0023] adjusting the included angle between the prefabricated composite slab and the hook to be greater than 45°;

[0024] lifting the prefabricated composite slab away from the initial stacking position by the tower crane to a distance of 200-300mm from the ground;

[0025] If it is determined that the tower crane and the prefabricated composite slab are still stably connected through the hook, lifting the prefabricated composite slab to a position 500-800mm above the corresponding installation position of the horizontal layered structure by the tower crane;

[0026] adjusting the included angle between the prefabricated composite slab and the hook to be equal to 90°, and lifting the prefabricated composite slab to the corresponding installation position of the horizontal layered structure by the tower crane.

[0027] Further, the building structure based on prefabricated components further comprises a plurality of prefabricated interior partitions, which are arranged in the building body and used to divide the layer space of each horizontal layered structure into a plurality of interior compartments; wherein each prefabricated interior partition in the plurality of prefabricated interior partitions is installed according to a third type of prefabricated component installation method, and each prefabricated interior partition in the plurality of prefabricated interior partitions is a autoclaved lightweight aerated concrete partition board.

[0028] Further, the installation of each prefabricated interior partition in the plurality of prefabricated interior partitions according to the third type of prefabricated component installation method comprises:

[0029] connecting the bottom of the prefabricated interior partition to the horizontal layered structure at the installation position through a plurality of pipe clamps, and simultaneously supporting the bottom of the prefabricated interior partition through a plurality of wooden wedges to make the distance between the bottom of the prefabricated interior partition and the horizontal layered structure at the installation position be 10-20cm;

[0030] fixing and connecting the plurality of pipe clamps to the horizontal layered structure at the installation position by corresponding number of shot pins;

[0031] 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.

[0032] 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

[0033] 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.

[0034] 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;

[0035] 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.

[0036] 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;

[0037] 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;

[0038] 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;

[0039] 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.

[0040] Figure 7A structure schematic diagram of a prefabricated inner partition wall not connected with a pipe clamp in a building structure based on fabricated components is provided for the embodiment of the present application.

[0041] Figure 8 A structure schematic diagram of a prefabricated inner partition wall connected with a pipe clamp in a building structure based on fabricated components is provided for the embodiment of the present application. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0043] It should be understood that, when used in the specification and the appended claims, the terms “comprise” and “include” indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0044] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application 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.

[0045] It should be further understood that the term “and / or” used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0046] Please refer to Figure 1 and Figure 2 , Figure 1 A structure schematic diagram of a building structure based on fabricated components from a front view is provided for the embodiment of the present application. Figure 2 A top view structure schematic diagram of a horizontal layered structure in a building structure based on fabricated components is provided for the embodiment of the present application. As Figure 1 and Figure 2As shown, the building structure based on the fabricated components comprises a building body 10, a plurality of prefabricated outer wall panels fixed on the outer wall of the building body 10, and a plurality of horizontal layering structures arranged in the building body 10 and used for dividing the internal space of the building body 10 into a multi-layer building structure; each horizontal layering structure 30 of the plurality of horizontal layering structures is provided with a plurality of prefabricated composite panels; wherein each prefabricated outer wall panel 20 of the plurality of prefabricated outer wall panels is installed according to a first type of prefabricated component installation mode, and each prefabricated composite panel 40 of the plurality of prefabricated composite panels is installed according to a second type of prefabricated component installation mode.

[0047] In the embodiment, in order to perform faster and safer construction at the construction site to be constructed, a plurality of prefabricated outer wall panels and a plurality of prefabricated composite panels can be produced, processed and quality detected in a production workshop, and then stacked according to stacking requirements at the construction site (for example, the plurality of prefabricated outer wall panels are vertically stored, and a special vertical storage rack can be produced to fix the prefabricated outer wall panels, and the plurality of prefabricated composite panels are horizontally stacked after being spaced by a wood bar), and then assembled and constructed according to a specific building construction drawing.

[0048] Specifically, a positioning line of the prefabricated outer wall panel can be popped up on a base structure surface of the building body 10 (which can be understood as a horizontal layering structure 30 located at the bottom layer of the plurality of horizontal layering structures), a wall body 200 mm control line and a fabricated wall steel bar positioning line of the building body 10 are used to accurately mark the elevation control points on each prefabricated outer wall panel by using a level, and the positions of the reserved and embedded prefabricated outer wall panels are reviewed. After the above operations are completed, each prefabricated outer wall panel 20 of the plurality of prefabricated outer wall panels can be installed according to the first type of prefabricated component installation mode in sequence.

[0049] Of course, when each horizontal layering structure 30 of the plurality of horizontal layering structures is constructed, in addition to the plurality of prefabricated composite panels, there is also a construction structure cast on site, so that the plurality of prefabricated composite panels and the construction structure cast on site together form the horizontal layering structure 30. When the plurality of prefabricated composite panels included in each horizontal layering structure 30 are constructed, each prefabricated composite panel 40 is installed according to the second type of prefabricated component installation mode.

[0050] In an embodiment, as shown in Figures 1-4 The top of each prefabricated outer wall panel 20 of the plurality of prefabricated outer wall panels is provided with at least one lifting pin node 21 as a lifting point, and at least one support structure connecting embedded part 22 for connecting a diagonal support structure is arranged on the side wall of the prefabricated outer wall panel 20.

[0051] In the embodiment, if one of the plurality of prefabricated outer wall panels 20 is taken as an example, the top of the prefabricated outer wall panel 20 is provided with at least one lifting lug node 21 as a lifting point. The lifting lug node 21 is connected to the top of the corresponding lower structure concrete at the installation position by the hook of the tower crane at the construction site, and then is placed on the support structure connecting embedded part 22 by connecting at least one inclined support structure after being lowered by the tower crane, so as to be assembled on site subsequently. The structures of other prefabricated outer wall panels are also referred to the above structure, which will not be described here.

[0052] In an embodiment, each prefabricated outer wall panel of the plurality of prefabricated outer wall panels is installed according to a first type of prefabricated component installation mode, including:

[0053] Placing a plurality of steel pads on the top of the corresponding lower structure concrete at the installation position of the prefabricated outer wall panel;

[0054] Connecting the lifting lug node at the top of the prefabricated outer wall panel to the tower crane by the hook, and connecting the prefabricated outer wall panel to the top of the corresponding lower structure concrete at the installation position by the tower crane, and placing it above the plurality of steel pads;

[0055] Connecting the prefabricated outer wall panel to one end of a plurality of inclined support structures through a support structure connecting embedded part; wherein the other end of the plurality of inclined support structures is rotationally connected to the corresponding lower structure concrete at the installation position;

[0056] Correcting the prefabricated outer wall panel to be perpendicular to the horizontal plane of the lower structure concrete;

[0057] Separating the lifting lug node at the top of the prefabricated outer wall panel from the hook, and separating the support structure connecting embedded part of the prefabricated outer wall panel from the plurality of inclined support structures;

[0058] Removing the plurality of steel pads at the bottom of the prefabricated outer wall panel, and sealing the gap between the bottom of the prefabricated outer wall panel and the top of the lower structure concrete.

[0059] In the embodiment, when each prefabricated outer wall panel is installed according to the first type of prefabricated component installation mode, the specific process is as follows:

[0060] A1) as Figure 3 and Figure 4As shown, a plurality of steel shims, specifically 2 groups of steel shims (with a cross-sectional size of 40 mm x 40 mm and a thickness of 1 mm, 2 mm, and 5 mm in combination), are placed on the top of the underlying structure concrete (which is the part obtained by casting in situ in the main body of the building) corresponding to the installation position of the prefabricated external wall panel 20. If the height of the top of the underlying structure concrete near the outdoor side is lower than that near the indoor side, the 2 groups of steel shims are respectively arranged on the top of the underlying structure concrete near the outdoor side and near the indoor side, and the stacking thickness of the 2 steel shims is determined by the elevation control point marked on the underlying structure concrete. If the elevation control point marked on the underlying structure concrete is denoted as Hi, the elevation of the uppermost steel shim near the outdoor side of the top of the underlying structure concrete is Hi + 0.2 m, and the elevation of the uppermost steel shim near the indoor side of the top of the underlying structure concrete is Hi + 0.25 m.

[0061] A2) Since the hoisting lug node 21 of the prefabricated external wall panel 20 is pre-embedded during production and can be connected to the tower crane through the lifting lug and steel wire during hoisting, the hoisting lug node 21 at the top of the prefabricated external wall panel 20 can be connected to the tower crane through the lifting lug and steel wire, and the prefabricated external wall panel 20 can be hoisted to the top of the underlying structure concrete corresponding to the installation position through the tower crane and placed above the plurality of steel shims.

[0062] A3) The prefabricated external wall panel is connected to one end of the plurality of inclined support structures 23 through the support structure connection pre-embedded member, which can be specifically referred to in Figure 4 , and the other end of the plurality of inclined support structures is rotationally connected to the underlying structure concrete corresponding to the installation position. The underlying structure concrete also has a pre-embedded connection member to connect to one end of the plurality of inclined support structures that is not connected to the support structure connection pre-embedded member.

[0063] A4) After connecting the plurality of inclined support structures to the support structure connection pre-embedded member of the prefabricated external wall panel, the position, perpendicularity, and flatness of the prefabricated external wall panel need to be checked. If there is a deviation, it can be adjusted through the inclined support structure, the tower crane, and related tools. Specifically, the vertical wall panel direction (Y direction) correction can be adjusted by using the inclined support structure short steel pipe inclined support adjusting rod to finely adjust the root of the prefabricated external wall panel to control the position in the Y direction. The parallel wall panel direction (X direction) correction can be performed by popping out the wall panel position line and control axis on the underlying structure concrete to correct the position of the wall panel. If there is a deviation that needs to be adjusted after the prefabricated external wall panel is positioned according to the position line, a crowbar can be used to finely adjust the side of the prefabricated external wall panel. It should be noted that the hoisting lug node 21 at the top of the prefabricated external wall panel is not disconnected from the lifting lug, steel wire, and tower crane during the above adjustment process to avoid accidents caused by the falling of the prefabricated external wall panel.

[0064] A5) After the position, verticality and flatness of the prefabricated external wall panel are checked, the lifting bolt node at the top of the prefabricated external wall panel is separated from the lifting lug, and the support structure connecting embedded part of the prefabricated external wall panel is separated from the plurality of inclined support structures; wherein, during the above removal process, an A-frame ladder can be placed on the lower structure concrete on the indoor side of the prefabricated external wall panel for safe operation;

[0065] A6) The plurality of steel shims at the bottom of the prefabricated external wall panel 20 are removed, and the gap between the bottom of the prefabricated external wall panel 20 and the top of the lower structure concrete is sealed; specifically, foamed polyethylene rods, air tight strips, weather-resistant sealant and non-shrinkage mortar can be used for operation.

[0066] It can be seen that after the above operations are completed, the on-site assembly of a prefabricated external wall panel is completed, and then the installation of other prefabricated external wall panels at other corresponding positions on the outer wall of the building main body can be completed according to the above process.

[0067] During the above installation process, the following points need attention:

[0068] B1) Before the prefabricated external wall panel is installed, the base layer of the corresponding lower structure concrete in place is first cleaned, and after being washed clean and free of debris, steel shims are used for leveling;

[0069] B2) The prefabricated external wall panel is hoisted and positioned, and a rough installation is first performed, and then a fine adjustment is performed;

[0070] B3) The permanent fixing part of the prefabricated component on the prefabricated external wall panel (for example, the lifting bolt node 21 and the support structure connecting embedded part 22 are not permanent fixing parts, and can be removed after assembly) must be well protected against corrosion and hidden operation;

[0071] B4) When installing the lifting tool of the lifting bolt node 21 of the prefabricated external wall panel, check whether the concrete around the lifting bolt node 21 on the prefabricated external wall panel has quality defects such as honeycomb, pitted surface and cracking that affect the force of the lifting bolt; when the included angle between the prefabricated external wall panel and the steel wire rope is less than 45 degrees or there are four (usually an even number) or more than four lifting bolts on the prefabricated external wall panel, a steel yoke should be used;

[0072] B5) When the prefabricated external wall panel is positioned, the front and back of the prefabricated external wall panel should be observed, and appropriate steel shims are selected according to the thickness and position of the pad indicated on the lower structure concrete to pad the prefabricated external wall panel; after the prefabricated external wall panel is positioned, the prefabricated external wall panel is fixed by the inclined support structure (the horizontal projection of the inclined support structure should be perpendicular to the prefabricated external wall panel during installation), and the inner horizontal joint of the prefabricated external wall panel is filled after being positioned;

[0073] B6) Gap control, i.e. the horizontal gap between the prefabricated external wall panel and the corresponding underlying structure concrete at the installation position is controlled according to the elevation (the elevation must be strictly controlled, otherwise it directly affects the vertical gap), the vertical gap can be controlled according to the wall panel end line of the prefabricated external wall panel, or a suitable width (according to the vertical gap width) spacer is placed between adjacent panels to control the end line;

[0074] B7) When adjusting the verticality of the prefabricated external wall panel, all the movable connection inclined support structures fixed on the prefabricated external wall panel need to be rotated at the same time, and it is strictly forbidden to rotate one outward and one inward; if the prefabricated external wall panel needs to be adjusted but the inclined support structure cannot be rotated, it is strictly forbidden to use brute force to rotate; when rotating the inclined support structure, the exposed length of the screw rod should be observed at all times to avoid the screw rod and the rotating rod from being separated;

[0075] B8) When hoisting the prefabricated external wall panel, the upper bolt installation of the inclined support structure and the hook removal personnel must wear safety belts;

[0076] B9) After hoisting the prefabricated external wall panel, it should be comprehensively checked for elevation, verticality, horizontal and vertical joint gaps, etc., and when checking the gable, it should not be checked alone, but should be checked as a whole facade;

[0077] B10) Deviation adjustment, i.e. when hoisting the current layer, it is found that the upper layer of the prefabricated external wall panel has a deviation, if the deviation is less than 5mm, it can be adjusted back to the original position at one time, if the deviation is greater than 5mm, it should be adjusted twice (two layers) or multiple times, and the verticality and positioning line should be adjusted at the same time, and the adjacent panels should also be adjusted appropriately.

[0078] In an embodiment, the tongue-and-groove sealing between the bottom of the prefabricated external wall panel and the top of the underlying structure concrete comprises:

[0079] The tongue-and-groove sealing between the bottom of the prefabricated external wall panel and the top of the underlying structure concrete is performed by using a foamed polyethylene rod, an air tight strip, a weather-resistant sealant and a non-shrinkage mortar.

[0080] In this embodiment, when the tongue-and-groove sealing between the bottom of the prefabricated external wall panel and the top of the underlying structure concrete is performed by using a foamed polyethylene rod, an air tight strip, a weather-resistant sealant and a non-shrinkage mortar, the foamed polyethylene rod is specifically a φ30 foamed polyethylene rod, the weather-resistant sealant is specifically a 20x25MS weather-resistant sealant, and the non-shrinkage mortar is specifically a 20x20 non-shrinkage mortar.

[0081] In an embodiment, as Figure 5As shown, if the gap between the bottom of the prefabricated outer wall panel 20 and the top of the underlying structure concrete is referred to as the indoor side gap near the indoor side of the building main body and the outdoor side gap near the outdoor side of the building main body, the weather-resistant sealant 24 is arranged in the outdoor side gap, the non-shrinkage mortar 25 is arranged in the indoor side gap, the air-tight strip 26 is arranged at one end of the gap space between the weather-resistant sealant 24 and the non-shrinkage mortar 25 near the non-shrinkage mortar 25, and the foamed polyethylene rod 27 is arranged at one end of the gap space between the weather-resistant sealant 24 and the non-shrinkage mortar 25 near the weather-resistant sealant 24.

[0082] In the embodiment, if the gap between the bottom of the prefabricated outer wall panel 20 and the top of the underlying structure concrete is referred to as the indoor side gap near the indoor side of the building main body and the outdoor side gap near the outdoor side of the building main body, the height of the indoor side gap is generally higher than that of the outdoor side gap (i.e., the inner side is higher than the outer side), the weather-resistant sealant 24 is arranged in the outdoor side gap (with a thickness not less than 25 mm), the non-shrinkage mortar 25 is arranged in the indoor side gap (with a thickness not less than 20 mm), the air-tight strip 26 is arranged at one end of the gap space between the weather-resistant sealant 24 and the non-shrinkage mortar 25 near the non-shrinkage mortar 25, and the foamed polyethylene rod 27 is arranged at one end of the gap space between the weather-resistant sealant 24 and the non-shrinkage mortar 25 near the weather-resistant sealant 24. It can be seen that the gap can be better sealed by the above-mentioned manner.

[0083] In an embodiment, as shown in Figure 1 、 Figure 2 and Figure 6 , the upper surface of each prefabricated composite panel 40 in the plurality of prefabricated composite panels is provided with a pre-buried lifting point 41.

[0084] In the embodiment, the upper surface of the prefabricated composite panel 40 is provided with a plurality of pre-buried lifting points 41 to facilitate connection with the tower crane, specifically, the tower crane is connected with the plurality of pre-buried lifting points 41 through a steel wire rope and a hook with a safety buckle, and the stress is evenly shared and the lifting is balanced by multiple points. The structures of other prefabricated composite panels are also referred to the above structure, which will not be described here.

[0085] In an embodiment, each prefabricated composite panel in the plurality of prefabricated composite panels is installed according to a second type of prefabricated component installation manner, which comprises:

[0086] A double-sided foam adhesive tape is adhered around the outer edge of the prefabricated composite panel;

[0087] Connecting the pre-embedded lifting point on the upper surface of the prefabricated composite slab to the hook of the tower crane, and lifting the prefabricated composite slab to the corresponding position to be installed on the horizontal layered structure by the tower crane;

[0088] Separating the pre-embedded lifting point of the prefabricated composite slab from the hook;

[0089] Removing the pre-embedded lifting point from the upper surface of the prefabricated composite slab.

[0090] In the embodiment, when each prefabricated composite slab is installed according to the second type of prefabricated component installation method, the specific process is as follows:

[0091] C1) A double-sided foam tape is adhered around the outer edge of the prefabricated composite slab 40;

[0092] C2) Because the upper surface of each prefabricated composite slab is provided with a plurality of pre-embedded lifting points 41, the tower crane can be connected to the plurality of pre-embedded lifting points 41 through a steel wire rope and a hook with a safety buckle, and the angle between the hook and the floor needs to be ensured to be greater than a certain angle. When lifted to the corresponding position to be installed on the horizontal layered structure currently under construction, it is slowly lowered to complete the installation. It should be noted that if the prefabricated composite slab is in the area close to the edge of the horizontal layered structure currently under construction, it should be installed first, that is, in the manner of first edge and then gradually approaching the center. Moreover, the beam bottom reinforcement needs to be bound before the prefabricated composite slab is lifted, and the installation and binding of the beam surface reinforcement at the corresponding position can be carried out after the lifting is completed.

[0093] C3) After the prefabricated composite slab is installed in place at the corresponding position to be installed on the horizontal layered structure currently under construction, the pre-embedded lifting point of the prefabricated composite slab is separated from the hook. Moreover, after the prefabricated composite slab is unhooked and in place, the anchor steel bars that are thrown out are promptly arranged to ensure that the post-pouring belt has sufficient length.

[0094] C4) The pre-embedded lifting point is removed from the upper surface of the prefabricated composite slab, and then the prefabricated composite slab can be inspected to avoid unevenness, gaps, etc. at the lower edge of the prefabricated composite slab. The gaps that appear at the local support that cannot be adjusted should be treated by plugging, and the support frame body can be adjusted appropriately to keep the bottom surface of the prefabricated composite slab flat and gapless.

[0095] After the lifting and correction of the prefabricated composite slab are completed, the steel bars of the prefabricated composite slab penetrate into the beam (wall) side mold beyond the beam, and double-sided foam tape is attached to the upper opening of the cast-in-place beam (plate) side mold and the two sides of the post-pouring belt to prevent slurry leakage.

[0096] In an embodiment, the lifting of the prefabricated composite slab to the corresponding position to be installed on the horizontal layered structure by the tower crane comprises:

[0097] adjusting the included angle between the prefabricated composite slab and the hook to be greater than 45°;

[0098] lifting the prefabricated composite slab away from the initial stacking position by the tower crane to a distance of 200-300mm from the ground;

[0099] If it is determined that the tower crane and the prefabricated composite slab are still firmly connected through the hook, lifting the prefabricated composite slab to a position 500-800mm above the corresponding installation position of the horizontal layered structure by the tower crane;

[0100] adjusting the included angle between the prefabricated composite slab and the hook to be equal to 90°, and lifting the prefabricated composite slab to the corresponding installation position of the horizontal layered structure by the tower crane.

[0101] In the embodiment, during the process of lifting the prefabricated composite slab to the corresponding installation position of the horizontal layered structure by the tower crane, first, a trial lifting is required, that is, the included angle between the prefabricated composite slab and the hook is adjusted to be greater than 45°, and the prefabricated composite slab is lifted away from the initial stacking position by the tower crane to a distance of 200-300mm from the ground. At this time, it is checked whether the hook is twisted or stuck, and whether the stress of the lifting point of the prefabricated composite slab is uniform and the PC component (i.e. the prefabricated concrete) is stable. If there is no abnormal condition, the subsequent operation is performed. Then, the prefabricated composite slab is lifted vertically to a position 500-800mm above the corresponding installation position of the horizontal layered structure by the tower crane. After the PC component in the prefabricated composite slab is stable, the construction personnel adjust the position by hand, adjust the included angle between the prefabricated composite slab and the hook to be equal to 90°, and slowly lower it to the corresponding installation position of the horizontal layered structure. During the above process, the prefabricated composite slab is slowly lowered to avoid rapid and sudden lowering to avoid excessive impact force causing cracks in the slab surface of the prefabricated composite slab and deformation of the shear wall and beam formwork.

[0102] In an embodiment, as shown in Figure 1 , Figure 2 and Figure 7 , the building structure based on prefabricated components further comprises a plurality of prefabricated interior partitions, which are arranged in the building body and used to divide the layer space corresponding to each of the horizontal layered structures 30 into a plurality of interior compartments; wherein each of the plurality of prefabricated interior partitions 50 is installed according to a third type of prefabricated component installation method, and each of the plurality of prefabricated interior partitions 50 is a steam-cured lightweight aerated concrete partition plate.

[0103] In the embodiment, after the site assembly of the prefabricated outer wall panel 20 and the prefabricated composite panel 40 in the building structure based on prefabricated components, a plurality of prefabricated inner partition walls can also be vertically arranged on each horizontal layered structure 30 in the building body to divide the layer space of the corresponding layer of the horizontal layered structure (the layer space is regarded as the space between the horizontal layered structure of the layer and the horizontal layered structure of the upper layer) into a plurality of inner partition rooms, so as to realize more space division of the building structure. Moreover, each prefabricated inner partition wall 50 in the plurality of prefabricated inner partition walls is installed according to the third type of prefabricated component installation mode, and each prefabricated inner partition wall in the plurality of prefabricated inner partition walls is an autoclaved lightweight concrete partition wall panel (which is abbreviated as ALC wall panel, and ALC stands for Autoclaved Lightweight Concrete).

[0104] In an embodiment, each prefabricated inner partition wall in the plurality of prefabricated inner partition walls is installed according to the third type of prefabricated component installation mode, comprising:

[0105] The bottom of the prefabricated inner partition wall is connected to the horizontal layered structure at the installation position through a plurality of pipe clamps, and at the same time, the bottom of the prefabricated inner partition wall is supported by a plurality of wooden wedges to make the spacing between the horizontal layered structure at the installation position be 10-20 cm;

[0106] The plurality of pipe clamps are fixedly connected to the horizontal layered structure at the installation position by a corresponding number of shot pins of the plurality of pipe clamps;

[0107] The gap between the bottom of the prefabricated inner partition wall and the horizontal layered structure at the installation position is filled by mortar, and the plurality of wooden wedges are removed.

[0108] In the embodiment, the installation process of one prefabricated inner partition wall is taken as an example, and the specific process is as follows:

[0109] D1) The bottom of the prefabricated inner partition wall 50 is connected to the horizontal layered structure at the installation position through a plurality of pipe clamps 51 (specifically made of Q235B galvanized material and with a minimum thickness of 3 mm), and at the same time, the bottom of the prefabricated inner partition wall 50 is supported by a plurality of wooden wedges 52 to make the spacing between the horizontal layered structure at the installation position be 10-20 cm, specifically as Figure 7 and Figure 8The horizontal layered structure at the installation position can be cleaned before the installation, and the prefabricated inner partition wall 50 is positioned and a positioning line is drawn, and a 10mm twist drill is used to drill a hole at a position 80mm away from the plate end of the prefabricated inner partition wall 50, and when the base layer is uneven, 1:3 cement mortar leveling is performed first; then, the pipe clamp 51 is inserted into the corresponding hole position along the thickness direction of the prefabricated inner partition wall 50, and the prefabricated inner partition wall 50 is erected and installed to the corresponding positioning line by using a vertical plate machine, and the position of the pipe clamp is adjusted to be perpendicular to the side surface of the prefabricated inner partition wall 50;

[0110] D2) The plurality of pipe clamps 51 are fixedly connected to the horizontal layered structure at the installation position by corresponding number of shot pins, and more specifically, the pipe clamp steel sheet of each pipe clamp is fixedly connected to the horizontal layered structure at the installation position by 2 shot pins with a length of 25mm.

[0111] D3) Finally, the gap between the bottom of the prefabricated inner partition wall and the horizontal layered structure at the installation position is filled with mortar (specifically, ALC special mortar), and the plurality of wooden wedges 52 are removed.

[0112] When the installation of one prefabricated inner partition wall is completed, the installation process of other prefabricated inner partition walls can refer to the above construction assembly process, but the difference is that the specific installation position is different.

[0113] It can be seen that the prefabricated outer wall panel and the prefabricated composite panel do not need to be surface treated on the construction site, and can be installed on site according to the installation method of the corresponding type of prefabricated component, thereby improving the on-site assembly efficiency.

[0114] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope 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; 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 structure concrete. 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 points from the upper surface of the prefabricated composite slab; 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.

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 1, 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.

4. The building structure based on prefabricated components according to claim 3, 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.

5. 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.

6. 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 horizontal layer structure in the multiple horizontal layer 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; 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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