An external wall structure of a unit and a construction method

Abstract

The present invention provides an exterior wall structure of a unit and a construction method, comprising: a main structure steel beam and a plurality of spliced exterior wall components of the unit; wherein, a plurality of groups of supports are vertically arranged on the main structure steel beam for installing floor codes; a plurality of adapters are arranged at the top of each exterior wall component of the unit for adjustably connecting with the corresponding floor codes; a plurality of hanging parts are arranged at the bottom of each exterior wall component of the unit for hanging with the hanging parts at the corresponding positions on the main structure steel beam. The exterior wall structure of the unit provided by the present invention can adjust the installation position to the greatest extent by arranging an adapter with adjustable position relative to the floor code at the top and a hanging part at the bottom, greatly improving the installation accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and more particularly, to an external wall structure of a unit and a construction method thereof. Background Art

[0002] With the development of the building decoration industry, the structural forms of modern large public buildings are becoming more and more complex, the performance requirements for building exterior walls are getting higher and higher, and at the same time, higher requirements are also put forward for construction technologies. The development of the external wall construction technology of units undoubtedly brings us new challenges and opportunities. The traditional frame curtain wall construction system has cumbersome processes, is greatly affected by the factors of on-site manual implementation, and has high requirements for on-site construction coordination ability. Greatly interfered by human factors, it is difficult to guarantee the installation quality and performance of the curtain wall, and a large amount of on-site management and quality control are required. Summary of the Invention

[0003] In view of this, the present invention provides an external wall structure of a unit and a construction method thereof, aiming to solve the problems of low construction efficiency and difficult quality guarantee of the existing external wall of the unit.

[0004] The present invention provides an external wall structure of a unit, including: a main structure steel beam and a plurality of spliced unit external wall components; wherein,

[0005] A plurality of groups of supports are vertically arranged on the main structure steel beam for installing floor codes;

[0006] A plurality of adapters are arranged at the top of each unit external wall component for adjustably connecting with the corresponding floor codes; a plurality of hanging parts are arranged at the bottom of each unit external wall component for hanging with the hanging parts at the corresponding positions on the main structure steel beam.

[0007] Further, in the above external wall structure of the unit, the unit external wall component includes: an assembled outer frame, an external wall decorative panel and a back panel; wherein,

[0008] The external wall decorative panel is inlaid in the assembled outer frame and is connected to each column on the front of the assembled outer frame through corner codes; the back panel is inlaid in the assembled outer frame and is connected to each cross beam on the back of the assembled outer frame through fasteners.

[0009] Further, in the above external wall structure of the unit, the assembled outer frame is a square frame, and a partition beam is arranged in the middle thereof to ensure the distance between adjacent external wall decorative panels;

[0010] A plurality of corner codes are arranged along the length direction on the inner side of the assembled outer frame and on both sides of the partition beam;

[0011] The assembled outer frame has a double-groove edge, and a water trough material and a water deflector rubber are sequentially lapped between the cross beams of two adjacent assembled outer frames from the main structure steel beam towards the exterior wall decorative panel.

[0012] Further, in the above-mentioned unit exterior wall structure, waist-shaped holes are provided on the floor brackets for adjustably connecting with the supports.

[0013] Further, in the above-mentioned unit exterior wall structure, the adapter includes a connecting member and a hanging member connected to each other; wherein,

[0014] The connecting member is connected to the end of the unit exterior wall assembly. A connecting column is vertically arranged on the connecting member, and a limit bolt is threadedly connected in the connecting column;

[0015] An arc-shaped clamping portion is provided at the bottom of the hanging member for adjustably clamping with the edge convex portion of the floor bracket.

[0016] Further, in the above-mentioned unit exterior wall structure, an anti-jump bolt is connected and passed through between the edge convex portion of the floor bracket and the arc-shaped clamping portion.

[0017] In the present invention, the unit exterior wall structure can adjust the installation position to the greatest extent by arranging an adapter with adjustable position relative to the floor bracket at the top and a hanging member at the bottom, greatly improving the installation accuracy.

[0018] On the other hand, the present invention also provides a construction method for a unit exterior wall structure, including the following steps: Step 1, install embedded parts on the main structure steel beam, and weld each support to the corresponding embedded part;

[0019] Step 2, assemble the exterior wall decorative panels by using a transfer platform and an installation platform to form a unit exterior wall assembly;

[0020] Step 3, lift each assembled unit exterior wall assembly to a preset position for plug-in installation.

[0021] Further, in the above-mentioned construction method, after Step 3, it further includes:

[0022] Step 4, complete the installation of the water trough material and the water deflector rubber between the cross beams of the assembled outer frames of two adjacent unit exterior wall assemblies.

[0023] Further, in the above-mentioned construction method, the transfer platform includes: a first strip-shaped frame; wherein,

[0024] A plurality of first hanging codes are provided on the inner side of the first strip-shaped frame along the length direction, and a sliding groove is provided on the side wall of the strip-shaped frame along the length direction in the horizontal direction for adjusting the positions of the first hanging codes.

[0025] Furthermore, in the above construction method, the installation platform includes: a second strip-shaped frame; wherein,

[0026] A partition portion is provided in the middle of the second strip-shaped frame for separating two adjacent exterior wall panels in the unit exterior wall assembly.

[0027] In the construction method of the unit exterior wall structure provided by the present invention, the transfer platform transfers the exterior wall panels to the installation platform to complete efficient and rapid assembly, and then transports them to the site. Subsequently, the entire unit exterior wall is hoisted and installed through hoisting fittings; assembling the unit in the factory is beneficial for adjusting structural deviations and is more conducive to quality control, ensuring the project quality; the overall on-site hoisting of the unit exterior wall has high plug-in installation accuracy, easy control of installation quality, and is relatively easy to meet the design requirements of high-performance exterior curtain walls. At the same time, it can greatly improve the construction efficiency and forming accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0029] Figure 1 is a schematic diagram of the node of the unit exterior wall structure provided by the embodiment of the present invention;

[0030] Figure 2 is the front view of the transfer platform in the unit exterior wall structure provided by the embodiment of the present invention;

[0031] Figure 3 is the side view of the transfer platform in the unit exterior wall structure provided by the embodiment of the present invention;

[0032] Figure 4 is Figure 3 a partial enlarged view of;

[0033] Figure 5 is the front view of the installation platform in the unit exterior wall structure provided by the embodiment of the present invention;

[0034] Figure 6 is the side view of the installation platform in the unit exterior wall structure provided by the embodiment of the present invention;

[0035] Figure 7 is Figure 6 a partial enlarged view of;

[0036] Figure 8 is the installation schematic diagram of the unit assembly on the installation platform in the embodiment of the present invention;

[0037] Figure 9 This is a schematic structural diagram of a hoisting fitting in an embodiment of the present invention. Detailed implementation manners

[0038] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0039] Refer to Figure 1 , the external wall structure of the unit body in the embodiment of the present invention includes: a main structure steel beam 1 and a plurality of spliced unit external wall components 4; wherein, a plurality of groups of supports 2 are arranged vertically on the main structure steel beam 1 for installing floor codes 3; the tops of the unit external wall components 4 are respectively connected to the corresponding floor codes 3 at adjustable positions through adapters 7; a plurality of hanging members (not shown in the figure) are arranged at the bottoms of the unit external wall components 4 for hanging on the hanging points at the corresponding positions on the main structure steel beam 1.

[0040] Specifically, embedded parts are provided in the main structure steel beam 1, and the supports 2 can be welded to the embedded parts. More specifically, the supports 2 can be steel parts. The floor codes 3 can be aluminum alloy parts, which can be firmly connected to the supports 2 through bolts. The floor codes 3 are plate-shaped structures with arc-shaped protruding edges, and waist-shaped holes are formed thereon for connecting to the embedded supports 2 at adjustable positions. In this embodiment, the adapters 7 can be uniformly arranged along the width direction of the unit external wall component 4 in the transverse direction, and the hanging members can be arranged in the middle of the unit external wall component 4.

[0041] The unit external wall component 4 includes: an assembled outer frame 41, an external wall decorative panel 42, and a back panel 43; wherein, the external wall decorative panel 42 is embedded in the assembled outer frame 41 and is connected to each column 411 on the front of the assembled outer frame 41 through angle codes 44; the back panel 43 is embedded in the assembled outer frame 41 and is connected to each cross beam 412 on the back of the assembled outer frame 41 through fasteners. The angle codes 44 can be aluminum alloy angle codes, and pads are arranged thereon and connected to each column 411 through bolts. Back bolts 421 are embedded in the external wall decorative panel 42, and the external wall decorative panel 42 is connected to the angle codes 44 through the back bolts 421.

[0042] Further, the assembled outer frame 41 is a square frame, with a partition beam 45 arranged in the middle thereof to ensure the spacing between adjacent exterior wall decorative panels 42; more specifically, a plurality of corner codes 44 are arranged along the length direction on the inner side of the assembled outer frame 41 and on both sides of the partition beam. The assembled outer frame 41 has a double-groove edge, and a water trough material 5 and a water deflecting rubber sheet 6 are sequentially lapped between the columns 411 of two adjacent assembled outer frames 41 from the main structure steel beam 1 towards the exterior wall decorative panel 42. The groove closer to the exterior wall decorative panel 42 can be an L shape, flush with the top of the exterior wall decorative panel 42, and a water deflecting rubber sheet is arranged therein. The groove away from the exterior wall decorative panel 42 can be a notch structure, and an aluminum alloy water trough material is arranged therein.

[0043] The adapter 7 in this embodiment includes a connecting member 71 and a hanging member 72 connected to each other; wherein, the connecting member 71 is connected to the end of the unit exterior wall assembly 4, a connecting column is arranged vertically on the connecting member 71, and a limit bolt 73 is threadedly connected in the connecting column to facilitate adjusting the height of the unit exterior wall assembly 4 in the vertical direction; an arc-shaped clamping portion is provided at the bottom of the hanging member 72 for adjustably clamping with the edge convex portion of the platform code 3, and the arc-shaped clamping portion can move along the edge convex portion of the platform code 3, thereby adjusting the displacement of the unit exterior wall assembly 4 in the horizontal direction.

[0044] Preferably, an anti-jump bolt 74 is connected and penetrated between the edge convex portion of the platform code 3 and the arc-shaped clamping portion. After the positions of the unit exterior wall assembly 4 in the horizontal and vertical directions are determined, the platform code 3 and the adapter 7 can be fastened through the anti-jump bolt.

[0045] Obviously, it can be obtained from the above that in the unit exterior wall structure provided in this embodiment, by arranging an adapter with an adjustable position relative to the platform code at the top and a hanging member at the bottom, the installation position can be adjusted to the greatest extent, greatly improving the installation accuracy.

[0046] The present invention also provides a construction method for a unit exterior wall structure, including the following steps:

[0047] Step 1, install embedded parts on the main structure steel beam 1, and weld each support 2 to the corresponding embedded part.

[0048] Specifically, clean the exposed surface of the embedded part, remove residues such as attached concrete, and conduct inspections. Check the left-right, up-down deviation of the embedded part, as well as the deviation of the structure in and out. Weld the unit exterior wall support 2 to the embedded part according to the requirements of the design drawing.

[0049] Step 2, use a transfer platform 8 and an installation platform 9 to assemble the exterior wall decorative panels 42 to form a unit exterior wall assembly 4.

[0050] Refer toFigures 2 - 4 The transfer platform 8 includes: a first strip-shaped frame 81; wherein, a plurality of first hanging codes 811 are provided on the inner side of the first strip-shaped frame along the length direction, and a sliding groove 812 is provided on the side wall of the strip-shaped frame along the length direction for adjusting the positions of the first hanging codes.

[0051] The exterior wall veneer 42 is transferred to the installation platform through the transfer platform. The transfer platform adopts a sliding groove design, which can adapt to exterior wall veneers 42 of different lengths. The platform is protected by an overall aluminum frame, which can reduce the breakage rate of the exterior wall veneer 42 plates, improve the factory production efficiency, and ensure the overall construction period.

[0052] Further, referring to Figures 5 - 8 the installation platform 9 includes: a second strip-shaped frame 91; wherein, a partition portion 92 is provided in the middle of the second strip-shaped frame for separating two adjacent exterior wall veneers 42 in the unit exterior wall assembly 4.

[0053] Specifically, the second strip-shaped frame 91 matches the shape of the assembly outer frame 41 of the unit exterior wall assembly 4, and the two are engaged to facilitate the precise installation of the unit exterior wall assembly 4.

[0054] During specific implementation, the exterior wall veneer 42 and the assembly outer frame 41 are placed on the second strip-shaped frame, the hanging codes of the assembly outer frame 41 and the hanging codes of the exterior wall veneer 42 are installed, and the installation of the exterior wall veneer 42 and the unit body back panel 43 is carried out. A partition portion is provided on the installation platform to ensure the gap between the exterior wall veneer 42 plates. It also has the characteristics of absorbing thickness deviation, ensuring the flatness of the exterior wall veneer 42 plates, and improving the factory production quality and efficiency.

[0055] Step 3, hoist each assembled unit exterior wall assembly 4 to a preset position for plug-in installation.

[0056] This step may include the following sub-steps:

[0057] Sub-step 31, installation of the floor code 3;

[0058] During specific implementation, first install the floor code 3. Before installing the floor code 3, set an isolation pad on the support 2, and then install the floor code 3 on the support 2 through high-strength bolts.

[0059] Sub-step 32, hoist the unit exterior wall assembly 4 by using a hoisting mechanism.

[0060] Referring to Figure 9, the hoisting fitting 10 includes: a steel lifting beam 101, with a number of first snap rings 102 and second snap rings 103 provided at both ends thereof. Hoisting members 413 are respectively provided at both ends of the cross beam 412 of the unit body assembly. Third snap rings 414 are provided on the two side columns 411 of the unit exterior wall assembly 4 close to the end of the column 412. A lifting rope 104 is connected between the first snap ring and the hoisting member 413, and a safety fall prevention rope 105 is used for secondary connection between the second snap ring and the third snap ring to ensure the safe and reliable hoisting of the unit body assembly.

[0061] During specific implementation, the hoisting fitting is inserted into the water tank of the unit panel. Then, after connecting the hoisting beam firmly with the hook of the electric hoist, the hoisting beam is firmly connected with the hoisting fitting through the lifting rope. Finally, the snap ring is reliably connected with the third snap ring on the unit exterior wall assembly 4 by using a safety fall prevention steel wire rope as a secondary safeguard to hoist the unit body to the installation position.

[0062] Sub-step 33, installation of the unit exterior wall assembly 4.

[0063] During specific implementation, the insertion and positioning of the unit body assembly are jointly completed by the personnel on the hoisting layer of the unit body assembly and the upper layer. When the unit panel descends to a distance of 200 mm between the hanging point of the unit body assembly and the height of the adapter 7, the driver is notified to stop the panel from descending, and the left-right direction insertion of the unit body assembly is carried out. After the left-right direction insertion is completed, the panel is commanded to continue descending under the condition of controlling the left-right joint size. At this time, the personnel on the upper layer of the unit body assembly are responsible for the docking of the top adapter 7 and the bottom hanging member of the unit panel with the corresponding hanging points on the floor dock 3 and the main structure steel beam 1 respectively, and the personnel on the panel installation layer are responsible for the insertion of the upper and lower unit panels. After confirming that the hanging points, left-right insertion, and up-down insertion of the unit panel are all installed in place, the fixture is removed.

[0064] Sub-step 34, elevation adjustment and inspection.

[0065] During specific implementation, after the unit panel is installed, a level and a steel ruler are used to check and adjust the elevation and joint width of the panel.

[0066] In this embodiment, after step 3, it further includes: step 4, installing the water tank material and the water deflector rubber between the columns 412 of the assembled outer frame 41 of two adjacent unit exterior wall assemblies 4.

[0067] The relevant parts in the method embodiment and the above-mentioned structure embodiment can be referred to each other, and will not be elaborated here.

[0068] In summary, in the present invention, the exterior wall decorative panels are transported to the installation platform through the transportation platform to complete efficient and rapid assembly, and then transported to the site. Subsequently, the entire unit exterior wall is hoisted and installed through the hoisting fittings; the assembly of the units in the factory is conducive to adjusting structural deviations and is more conducive to quality control, ensuring the project quality; the overall on-site hoisting of the unit exterior wall has high plug-in installation accuracy, easy control of installation quality, and is relatively easy to meet the design requirements of high-performance exterior curtain walls. At the same time, the construction efficiency and forming accuracy can be greatly improved.

[0069] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. An external wall structure of a unit, characterized in that, Including: The main structure steel beam and multiple spliced unit exterior wall components; wherein, Multiple groups of supports are vertically arranged on the main structure steel beam for installing floor codes; Several adapters are arranged at the top of each unit exterior wall component for adjustably connecting with the corresponding floor codes at the same position; The adapter includes a connected connecting piece and a hanging piece; wherein, the connecting piece is connected to the end of the unit exterior wall component, a connecting column is vertically arranged on the connecting piece, and a limiting bolt is threadedly connected in the connecting column; an arc-shaped clamping portion is formed at the bottom of the hanging piece for adjustably clamping with the edge convex portion of the floor code; an anti-jump bolt is connected and penetrated between the edge convex portion of the floor code and the arc-shaped clamping portion; several hanging pieces are arranged at the bottom of each unit exterior wall component for hanging with the hanging portions at the corresponding positions on the main structure steel beam.

2. The unit exterior wall structure according to claim 1, characterized in that The unit exterior wall component includes: An assembled outer frame, an exterior wall decorative panel and a back panel; wherein, The exterior wall decorative panel is inlaid in the assembled outer frame and is connected to each upright column on the front of the assembled outer frame through corner codes; The back panel is inlaid in the assembled outer frame and is connected to each cross beam on the back of the assembled outer frame through fasteners; The assembled outer frame is a square frame, and 3. The unit exterior wall structure according to claim 2, characterized in that, Partition beams are arranged in the middle to ensure the distance between adjacent exterior wall decorative panels; Several corner codes are arranged along the length direction on the inner side of the assembled outer frame and on both sides of the partition beam; The assembled outer frame has a double-groove edge, and a water trough material and a water shedding rubber are sequentially lapped between the cross beams of two adjacent assembled outer frames from the main structure steel beam towards the exterior wall decorative panel; Waist-shaped holes are formed in the floor code, For adjustably connecting with the support; 4. The unit exterior wall structure according to claim 1, characterized in that, Including the following steps: Step 1, install embedded parts on the main structure steel beam and weld each support on the corresponding embedded part; 5. A construction method for the external wall structure of a unit as described in claim 1, characterized in that, Step 2, assemble the exterior wall decorative panels into unit exterior wall components by using a transfer platform and an installation platform; ​ ​ A plurality of adapters are provided at the top of each unit exterior wall assembly for adjustably connecting to the corresponding platform codes; the adapter includes: a connecting piece and a hanging piece connected to each other; wherein, the connecting piece is connected to the end of the unit exterior wall assembly, a connecting column is vertically arranged on the connecting piece, and a limiting bolt is threadedly connected in the connecting column; an arc-shaped clamping portion is provided at the bottom of the hanging piece for adjustably clamping with the edge convex portion of the platform code; an anti-jump bolt is connected and penetrated between the edge convex portion of the platform code and the arc-shaped clamping portion; a plurality of hanging pieces are provided at the bottom of each unit exterior wall assembly for hanging with the hanging portions at corresponding positions on the main structure steel beam; the transfer platform includes: a first strip-shaped frame; wherein, a plurality of first hanging codes are arranged on the inner side of the first strip-shaped frame along the length direction, and a sliding groove is arranged on the side wall of the strip-shaped frame along the length direction for adjusting the positions of the first hanging codes; the installation platform includes: a second strip-shaped frame; wherein, a partition portion is arranged in the middle of the second strip-shaped frame for separating two adjacent exterior wall decorative panels in the unit exterior wall assembly; Step 3: Lift each assembled unit exterior wall assembly to a preset position for plug-in installation.

6. The unit exterior wall structure according to claim 5, characterized in that, After the said Step 3, it further includes: Step 4: Complete the installation of the water trough material and the water-repellent rubber between the cross beams of the assembled outer frames of two adjacent unit exterior wall assemblies.

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