An assembled ALC wallboard adjustable positioning and anti-cracking connecting node

Abstract

The utility model discloses an adjustable positioning and anti-cracking connecting joint of assembly type ALC wallboard, including ALC wallboard and the structural beam board and structural floor that set up respectively at the top and bottom of ALC wallboard, the adjusting assembly for adjusting the verticality of ALC wallboard installation is equipped between ALC wallboard and structural beam board and structural floor all. The utility model discloses, by setting up adjusting assembly at the top and bottom of ALC wallboard respectively, the position of wallboard top and bottom is adjusted in the wallboard installation process, and the installation verticality and relative position of ALC wallboard are conveniently adjusted, have improved wallboard installation accuracy, and through the connecting plate connection adjacent two ALC wallboards, can limit the relative displacement of adjacent wallboard, enhance the overall stability of wallboard splicing position, and the base plate and embedded steel bar can provide the relatively stable installation foundation for adjusting assembly, and the node stress is transmitted to structural beam board or structural floor, guarantees the integrity after wallboard installation.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to an adjustable positioning and crack-resistant connection node for prefabricated ALC wall panels. Background Technology

[0002] Prefabricated ALC wall panels are prefabricated panel wall components made of autoclaved lightweight aerated concrete (AAC) as the base material, with anti-corrosion steel mesh or steel skeleton inside the panel. They are manufactured through processes such as material preparation, pouring, gas generation, cutting, and high-temperature and high-pressure steam curing. Prefabricated ALC wall panels are usually prefabricated into standardized panels in the factory and transported to the site for construction. They are then assembled and connected to the main structure, floor slabs, beams, columns, or adjacent wall panels using connectors, supports, anchors, angle steel, clips, special mortar, or sealing materials.

[0003] A search revealed that Chinese patent CN224363487U discloses an ALC wall panel installation structure, including an ALC wall panel, pipe clamps for fixing the ALC wall panel to a top beam and a bottom floor slab, a positioning beam, fixing bolts, and a spacer. The positioning beam consists of two parallel beams, positioned near the top beam and bottom floor slab respectively, with both ends fixed to structural columns by expansion bolts. The same side of the two positioning beams forms a positioning surface for positioning the ALC wall panel. Multiple oval holes are provided along the length of the positioning beam. The spacer is fixed to the bottom floor slab to support the bottom of the ALC wall panel away from the positioning beam. The back of the ALC wall panel has a pre-reserved groove matching the positioning beam, and the front has at least one countersunk bolt hole penetrating the pre-reserved groove. Fixing bolts pass through the oval holes and the countersunk bolt hole to fix the ALC wall panel to the positioning beam.

[0004] When installing ALC wall panels, it is usually necessary to position the wall panels between the floor slab, structural beam, or structural column, and fill and fix the gap between the wall panel and the main structure with cement mortar, special bonding mortar, or grouting material. During construction, the wall panels are mainly positioned according to the pre-marked control lines. After the wall panels are erected, the position, verticality, and flatness of the wall panels are repeatedly adjusted using pry bars, wooden wedges, etc., and then fixed after the wall panels are adjusted to the correct position. However, cement mortar mainly plays the role of filling, bonding, and local support. Its early strength is low, and it is prone to shrinkage during the hardening process. Before the mortar is fully cured, the wall panels are prone to displacement due to their own weight, construction vibration, or external collisions, resulting in deviations in the installation position, verticality, and joint width of the wall panels.

[0005] In addition, ALC wall panels are lightweight, porous, and brittle. Furthermore, the material properties of the wall panels differ from those of reinforced concrete beams, columns, and floor slabs. When the main structure deforms, experiences temperature changes, humidity variations, or construction errors, cracks are prone to appear at the junction of the wall panels and the main structure. Based on this, an adjustable positioning and crack-resistant connection node for prefabricated ALC wall panels is proposed to solve the above problems. This achieves adjustable positioning and crack prevention for prefabricated ALC wall panels, reduces repeated on-site adjustments, and lowers the risk of cracks at the junction of the wall panels and the main structure. Utility Model Content

[0006] Based on the above description, this utility model provides an adjustable positioning and crack-resistant connection node for prefabricated ALC wall panels to solve the problems that when the mortar has not fully cured, the wall panels are prone to displacement due to their own weight, construction vibration or external collision, resulting in deviations in the installation position, verticality and joint width of the wall panels; and that cracks are prone to appear at the junction of the wall panels and the main structure when the main structure is deformed, temperature changes, wet and dry changes or construction errors occur.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An adjustable positioning and crack-resistant connection node for prefabricated ALC wall panels, including ALC wall panels and structural beams and floor slabs respectively disposed at the top and bottom of the ALC wall panels. The ALC wall panel is provided with adjustment components for adjusting the verticality of the ALC wall panel installation between it and the structural beams and floor slabs, and a connection component is provided between the ALC wall panel and the column for sealing the gap between them. Each of the structural beams and floor slabs has a base plate on one side opposite to the structural beams and floor slabs, and embedded steel bars are pre-embedded between the base plate and the structural beams and floor slabs. The adjustment assembly includes the same connecting plate located at the top and bottom of two adjacent ALC wall panels and multiple adjustment components located between the connecting plate and the opposite side of the structural floor slab and structural beam slab. The connecting plate is a U-shaped plate. The connecting assembly includes multiple mounting slots opened on the side of the ALC wall panel near the column, elastic gaskets on the ALC wall panel, insulation cloth fixed to one side of the elastic gaskets, and a mortar layer filled between the ALC wall panel and the column, with the mortar layer covering the outside of the insulation cloth.

[0008] Through the above technical solution, by setting adjustment components at the top and bottom of the ALC wall panel, the position of the top and bottom of the wall panel can be adjusted during the wall panel installation process, which facilitates the adjustment of the verticality and relative position of the ALC wall panel installation, thereby improving the wall panel installation accuracy. Connecting two adjacent ALC wall panels with connecting plates helps to limit the relative displacement of adjacent wall panels and enhances the overall stability of the wall panel splicing position. Elastic gaskets can buffer the relative deformation between the main structure and the wall panel, and thermal insulation cloth can enhance the crack resistance of the mortar layer, thereby reducing the possibility of cracking at the junction of the wall panel and the column.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the adjusting component includes a screw fixed to the bottom of the connecting plate, a hollow sleeve fixed to the structural floor slab and structural beam, and a rotating bolt rotatably mounted on the hollow sleeve. The screw is threadedly connected to the rotating bolt, and a hollow cavity is provided inside the hollow sleeve for the screw to enter.

[0011] Through the above technical solution, the rotation of the rotating bolt can be converted into the up and down movement of the screw and the connecting plate by the threaded connection, thereby realizing the adjustment of the installation height of the ALC wall panel; the hollow sleeve can provide a space for the screw.

[0012] Furthermore, the number of the adjusting components is two, and they are symmetrically distributed on the left and right sides of the vertical central axis of the connecting plate; The two adjacent ALC wall panels are symmetrically distributed on the left and right sides of the vertical central axis of the connecting plate.

[0013] By using the above technical solution, two adjusting components are symmetrically arranged on both sides of the connecting plate, making the connecting plate more evenly stressed; two adjacent ALC wall panels can be supported by the connecting plate, improving the verticality after installation.

[0014] Furthermore, the ALC wall panel has an inner groove and an outer protrusion at both ends, and the adjacent inner groove and outer protrusion cooperate with each other. The cross-sectional shape of the outer protrusion is an isosceles trapezoid, and the short side of the isosceles trapezoid is perpendicular to the ALC wall panel.

[0015] Through the above technical solution, the cooperation of the inner groove and the outer protrusion can limit the misalignment of adjacent wall panels along the wall thickness direction, improve the neatness of the wall panels during installation, and improve the installation efficiency by positioning the wall panels.

[0016] Furthermore, a slot is provided on the side of the inner groove opposite to the outer protrusion, and the same locking rod is provided in the two slots; The number of slots is no less than two, and they are evenly distributed on the side opposite the inner groove and the outer protrusion.

[0017] Through the above technical solution, the setting of the clamp rod can connect and lock adjacent ALC wall panels, improve the anti-misalignment ability between wall panels, and at the same time make the force at the splicing position uniform, thereby improving the connection reliability between adjacent wall panels.

[0018] Furthermore, the elastic gasket extends from the side near the mounting groove with a plurality of mounting blocks located within the mounting groove; The elastic gasket has a recessed groove, and a screw that passes through the mounting block and extends into the ALC wall panel is inserted into the recessed groove.

[0019] The above technical solution can pre-position the elastic gasket to prevent displacement between the elastic gasket and the wall panel surface; the screw setting can improve the installation stability of the elastic gasket.

[0020] Furthermore, the width of the elastic pad is equal to the width of the ALC wall panel;

[0021] The insulation cloth is an alkali-resistant fiberglass mesh.

[0022] The above technical solutions enable the elastic gasket to cover the entire interface between the wall panel and the column, improving the continuity of joint buffering and sealing; alkali-resistant fiberglass mesh is used as insulation cloth to improve the integrity and crack resistance of the mortar layer, and reduce the possibility of the reinforcing material failing due to the alkaline environment during long-term use of cement-based mortar.

[0023] Furthermore, the adjusting component includes an upper pad fixed on the connecting plate, a lower pad disposed on the base plate, continuous toothed grooves formed on the inclined surfaces of the upper and lower pads on opposite sides, and through holes formed on the upper and lower pads. The same bolt assembly is inserted into the two through holes, and the upper and lower pads are engaged by the toothed grooves.

[0024] Through the above technical solution, the lateral displacement of the two pads can be converted into the vertical displacement of the connecting plate by the relative movement between the upper pad and the lower pad, thereby enabling the installation height and verticality of the ALC wall panel.

[0025] Furthermore, the adjustment component includes multiple toothed grooves formed on the top and bottom of the ALC wall panel, and long pads that engage with the toothed grooves. The toothed grooves are arranged along the length of the ALC wall panel, and the length of the long pads is equal to the distance between two adjacent columns. The distance between the two long pads is equal to the width of the substrate.

[0026] Through the above technical solution, the toothed groove setting can adjust the bottom support height of the wall panel by different tooth positions.

[0027] Furthermore, the adjustment assembly includes multiple toothed grooves formed on the top and bottom of the ALC wall panel, and multiple short pads that engage with the toothed grooves, the length of which is equal to the length of the ALC wall panel.

[0028] The above technical solution allows for the adjustment of the support height and verticality of a single ALC wall panel when the ground is uneven.

[0029] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. By setting adjustment components at the top and bottom of the ALC wall panel, the position of the top and bottom of the wall panel can be adjusted during the wall panel installation process, which facilitates the adjustment of the verticality and relative position of the ALC wall panel installation, and improves the wall panel installation accuracy. By connecting two adjacent ALC wall panels with connecting plates, the relative displacement of adjacent wall panels can be limited, enhancing the overall stability of the wall panel splicing position. The base plate and embedded steel bars can provide a relatively stable installation foundation for the adjustment components and transfer the node force to the structural beams or structural floor slabs, ensuring the integrity of the wall panel after installation.

[0030] 2. By setting elastic gaskets, insulation cloth and mortar layer between ALC wall panels and columns, the gap between the wall panels and columns can be filled and sealed. The elastic gaskets can buffer the relative deformation between the main structure and the wall panels, and the insulation cloth can enhance the crack resistance of the mortar layer, thereby reducing the possibility of cracking at the junction of the wall panels and columns. Attached Figure Description

[0031] Figure 1 A schematic diagram of the overall structure of an adjustable positioning and crack-resistant connection node for a prefabricated ALC wall panel provided in this embodiment of the present invention; Figure 2 This is a top view of the ALC wall panel and column structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the adjustment component according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the connecting component in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the structure of the upper pad and lower pad, etc., in an embodiment of the present invention; Figure 6 This is a schematic diagram of the toothed groove and the long pad block in an embodiment of the present invention; Figure 7 This is a schematic diagram of the toothed groove and short pad block in an embodiment of the present invention.

[0032] Attached reference numerals: 1. ALC wall panel; 2. Structural beam / slab; 3. Structural floor slab; 41. Inner groove; 42. Outer protrusion; 43. Slot; 44. Locking rod; 5. Adjusting assembly; 51. Connecting plate; 52. Screw; 53. Hollow sleeve; 54. Rotating bolt; 55. Hollow cavity; 6. Connecting components; 61. Mounting groove; 62. Elastic gasket; 63. Insulation cloth; 64. Mortar layer; 65. Mounting block; 7. Substrate; 8. Embedded reinforcing bars; 91. Upper pad; 92. Lower pad; 93. Toothed groove; 94. Through hole; 101. Toothed groove; 102. Long pad; 111. Short pad block. Detailed Implementation

[0033] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0035] Example 1: Reference Figure 1 An adjustable positioning and crack-resistant connection node for prefabricated ALC wall panels includes an ALC wall panel 1 and structural beams 2 and structural floor slabs 3 respectively located at the top and bottom of the ALC wall panel 1. Adjustment components 5 for adjusting the verticality of the ALC wall panel 1 are provided between the ALC wall panel 1 and the structural beams 2 and structural floor slabs 3. Connection components 6 for sealing the gap between the ALC wall panel 1 and the column are provided. A base plate 7 is provided on the opposite side of the structural beams 2 and structural floor slabs 3. Embedded steel bars 8 are pre-embedded between the base plate 7 and the structural beams 2 and structural floor slabs 3.

[0036] refer to Figure 2The ALC wall panel 1 has an inner groove 41 and an outer protrusion 42 at both ends. The adjacent inner grooves 41 and outer protrusions 42 cooperate with each other. The cross-sectional shape of the outer protrusion 42 is an isosceles trapezoid, and the short side of the isosceles trapezoid is perpendicular to the ALC wall panel 1. By setting the cooperating inner grooves 41 and outer protrusions 42, the possibility of misalignment between adjacent wall panels is limited, which improves the positioning efficiency and neatness of the wall panel splicing. The outer protrusion 42 has a guiding and limiting function, and can also increase the gap between adjacent wall panels. The contact area is increased to improve the stability and anti-misalignment ability of the wall panel splicing parts; a slot 43 is provided on the side opposite to the inner groove 41 and the outer protrusion 42, and the same locking rod 44 is provided in the two slots 43; there are no less than two slots 43, and they are evenly distributed on the side opposite to the inner groove 41 and the outer protrusion 42. The slots 43 and the locking rod 44 can further connect and lock adjacent ALC wall panels, restrict the inner groove 41 and the outer protrusion 42 from separating from each other, and enhance the anti-misalignment ability of the wall panel splicing joint.

[0037] refer to Figure 3 The adjustment assembly 5 includes the same connecting plate 51 located at the top and bottom of two adjacent ALC wall panels 1 and multiple adjustment components located between the connecting plate 51 and the opposite side of the structural floor slab 3 and structural beam slab 2. The connecting plate 51 is a U-shaped plate, which can initially limit the position of two adjacent ALC wall panels 1. The two adjacent ALC wall panels 1 are symmetrically distributed on the left and right sides of the vertical central axis of the connecting plate 51. There are two adjustment components, which are symmetrically distributed on the left and right sides of the vertical central axis of the connecting plate 51.

[0038] refer to Figure 3 The adjusting components include a screw 52 fixed to the bottom of the connecting plate 51, a hollow sleeve 53 fixed to the structural floor slab 3 and the structural beam slab 2, and a rotating bolt 54 rotatably installed on the hollow sleeve 53. The screw 52 is threadedly connected to the rotating bolt 54. A hollow cavity 55 is provided inside the hollow sleeve 53 for the screw 52 to enter. There are two adjusting components, which are symmetrically distributed on the left and right sides of the vertical central axis of the connecting plate 51. Two adjacent ALC wall panels 1 are symmetrically distributed on the left and right sides of the vertical central axis of the connecting plate 51.

[0039] refer to Figure 4The connecting component 6 includes multiple mounting grooves 61 formed on the side of the ALC wall panel 1 near the column, elastic gaskets 62 on the ALC wall panel 1, insulation cloth 63 fixed to one side of the elastic gaskets 62, and a mortar layer 64 filled between the ALC wall panel 1 and the column. Multiple mounting blocks 65 extend from the side of the elastic gaskets 62 near the mounting grooves 61 and are located within the mounting grooves 61. A recessed groove is formed on the elastic gasket 62, and a screw passes through the mounting block 65 and extends into the ALC wall panel 1. The screw improves the stability of the fixation between the elastic gasket 62 and the mounting groove 61, further enhancing the ALC wall panel 1's stability. The stability of the fixation between the LC wall panel 1 and the elastic gasket 62 is improved. The width of the elastic gasket 62 is equal to the width of the ALC wall panel 1, which allows the elastic gasket 62 to cover the entire contact surface between the wall panel and the column, improving the continuity of node buffering and sealing, and reducing the formation of rigid contact points at the junction. The insulation cloth 63 is an alkali-resistant fiberglass mesh cloth, which is a building material made of medium-alkali or alkali-free fiberglass woven fabric as the base material and treated with alkali-resistant coating. It has the characteristics of high strength, good corrosion resistance and strong adhesion, which improves the integrity and crack resistance of the mortar layer 64 and reduces the possibility of cement-based mortar failure due to alkaline environment during long-term use.

[0040] To improve the installation accuracy and construction efficiency of the above-mentioned connection nodes, before actual installation, a corresponding digital twin model can be created in the computer using one wall to be installed on one floor as the object, and the digital twin model can be used to simulate the layout, transportation, hoisting, positioning, adjustment, connection and acceptance process of ALC wall panel 1.

[0041] The digital twin model includes at least structural floor slabs (3), structural beams (2), columns, base plates (7), ALC wall panels (1), adjustment components (5), connection components (6), wall panel splicing structures, door and window openings, reserved holes, construction equipment, and construction operation space. When establishing the digital twin model, a unique code is assigned to each ALC wall panel (1), each adjustment component (5), and each connection component (6), so that the component codes in the computer model correspond to the wall panel production codes, on-site QR codes, installation records, and acceptance records. The data required for digital twin simulation includes wall geometry data, main structure data, wall panel product data, wall panel layout data, connection node data, on-site measured data, construction equipment data, construction process data, and quality acceptance data.

[0042] The wall geometry data includes the wall's starting and ending coordinates, wall length, wall height, wall thickness, door and window opening locations, reserved hole locations, and design gaps between the wall and structural beams / slabs 2, structural floor slabs 3, and columns; the main structure data includes the design and actual elevations of structural floor slabs 3, the design and actual positions of structural beams / slabs 2, the cross-sectional dimensions and actual coordinates of columns, the positions of base plates 7 and embedded reinforcing bars 8, and construction deviations of the main structure; the wall panel product data includes the length of each ALC wall panel 1. The data includes: height, thickness, weight, center of gravity position, hoisting point position, position of inner groove 41 and outer protrusion 42, position of slot 43, position of mounting groove 61, production batch, and factory dimensional deviation; wall panel layout data includes the design and installation coordinates of each ALC wall panel 1, installation sequence, panel joint position, panel joint width, distribution of standard and non-standard panels, position of opening edge panels, and position of finishing panels; connection node data includes the dimensions and installation position of connecting plate 51, length of screw 52, ​​position of hollow sleeve 53, and swivel bolt 54. The thread parameters, adjustment range of the adjusting parts, thickness of the elastic gasket 62, position of the mounting block 65, laying range of the insulation cloth 63, and design thickness of the mortar layer 64 are all specified. On-site measured data can be obtained through a total station, laser scanning equipment, laser rangefinder, or other measuring equipment. On-site measured data should include at least the actual elevation of the structural floor slab 3, the actual bottom elevation of the structural beam slab 2, the actual position of the column, the actual position of the base plate 7, the position of the wall control line, and the position of on-site obstacles. Construction equipment data includes the external dimensions, rated lifting capacity, working radius, boom length, slewing range, travel route, sling length, wall panel clamp dimensions, and allowable construction load of the floor slab in the construction area of ​​the hoisting equipment. Quality acceptance data includes the allowable deviation of the plane position of the ALC wall panel 1, the allowable deviation of the installation elevation, the allowable deviation of the verticality of a single wall panel, the allowable deviation of the verticality of the entire wall, the allowable deviation of the wall surface flatness, the allowable deviation of the panel joint width, and the allowable deviation of the installation position of the connector. The above allowable deviations are set according to the design documents, construction plan, and corresponding acceptance standards.

[0043] Digital twin construction simulation can be performed according to the following steps: S1. Establish a coordinate system. Establish a project coordinate system based on the building grid and floor elevation benchmarks, and establish a local coordinate system at the wall surface to be installed. The horizontal coordinate axis of the local coordinate system is set along the length of the wall, the vertical coordinate axis is set along the direction perpendicular to the wall, and the vertical coordinate axis is set along the height of the wall. Convert the design model, on-site measurement data, and laser scanning point cloud into the same coordinate system to reduce coordinate errors between different data sources.

[0044] S2. Establish a parametric model. Based on the architectural design drawings, structural design drawings, and wall panel layout drawings, establish three-dimensional models of structural floor slabs 3, structural beams 2, columns, base plates 7, ALC wall panels 1, adjustment components 5, and connection components 6. Each ALC wall panel 1 is established as an independent model, and parameters such as length, height, thickness, weight, center of gravity position, installation direction, design coordinates, panel joint width, and connection node type are given. The adjustment component 5 is set with the initial position of the screw 52, ​​adjustable stroke, and pitch parameters of the rotating bolt 54, so that the computer can calculate the displacement of the connection plate 51 based on the rotation of the rotating bolt 54.

[0045] S3. Import on-site measured data. Import the on-site measured data of structural floor slab 3, structural beam slab 2, columns and base plate 7 into the digital twin model, and compare the actual structural model with the design structural model. The computer determines the plane deviation, elevation deviation and verticality adjustment requirements corresponding to the installation position of each ALC wall panel 1 based on the difference between the design position and the actual position.

[0046] S4. Perform wall panel layout and installation feasibility verification. The computer generates the layout result of ALC wall panel 1 based on the wall length, opening position, standard wall panel size and panel joint width, and checks for situations such as excessively narrow end panels, conflicts between wall panels and door / window openings, conflicts between wall panels and reserved pipelines, or interference between the slot 43 and other components. The computer also compares the actual height of ALC wall panel 1 with the actual net height between the structural floor slab 3 and the structural beam slab 2. When the sum of the actual height of the wall panel, the top reserved gap and the bottom reserved gap exceeds the actual net height, an installation prohibition prompt is issued.

[0047] S5. Calculate the adjustment amount of the adjustment components. Based on the design installation coordinates and actual structural coordinates of each ALC wall panel 1, calculate the required adjustment amount of each adjustment component at the top and bottom of the wall panel. When the required adjustment heights on both sides of the same connecting plate 51 are the same, control the two adjustment components to adjust synchronously. When the required adjustment heights on both sides of the connecting plate 51 are different, determine the rotation direction and rotation amount of the two rotating bolts 54 respectively to correct the tilt state of the ALC wall panel 1. When the calculated adjustment amount exceeds the allowable adjustment range of the adjustment component 5, the digital twin system issues a rectification prompt.

[0048] S6. Simulate the hoisting and installation sequence. Based on the weight, center of gravity, lifting point, rated lifting capacity of the hoisting equipment, and construction site space of ALC wall panel 1, simulate the process of moving ALC wall panel 1 from the stacking position to the installation position. During the simulation, check whether ALC wall panel 1 can pass through the transportation channel, whether the hoisting equipment has a sufficient operating radius, and whether ALC wall panel 1 collides with structural beams and slabs 2, columns, installed wall panels, or other on-site components during hoisting, turning, and positioning. The preferred installation sequence for wall panels is from one end of the wall to the other, or from the fixed end to the closing end. When setting up door and window openings, the opening edge plate or positioning reference plate can be installed first, then the standard plate, and finally the closing plate.

[0049] S7. Conduct a construction process simulation, linking the wall panel arrival, wall panel acceptance, wall panel hoisting, bottom positioning, adjacent wall panel splicing, clamp rod 44 installation, wall panel verticality adjustment, top connection, elastic gasket 62 installation, insulation cloth 63 laying, mortar layer 64 construction and quality acceptance to the construction time to form a four-dimensional construction simulation. Through the four-dimensional construction simulation, check the construction sequence, equipment space occupation, operator work position, timing of temporary support removal and the connection between different processes.

[0050] S8. Conduct temporary stability and crack risk analysis. Analyze the stability of the ALC wall panel 1 under the following conditions: in the hoisted state, in the bottom position but not yet fixed at the top, and after the wall panel is connected. The crack risk analysis should at least consider the deformation of the main structure, the temperature deformation of the wall panel, the drying shrinkage of the wall panel, the relative displacement between the ALC wall panel 1 and the column, the shrinkage of the mortar layer 64, and the stress concentration at the wall panel splicing position. When the actual gap between the ALC wall panel 1 and the column is less than the installation space required for the elastic gasket 62, the system will issue a gap insufficient warning. When the actual gap is too large, the system will determine the construction parameters of the elastic gasket 62 and the mortar layer 64 based on the actual gap.

[0051] S9. Set construction control rules. The digital twin system establishes construction control rules based on design documents and construction acceptance requirements. When the wall panel height exceeds the actual installation net height, the wall panel weight exceeds the allowable lifting weight of the hoisting equipment under the corresponding working radius, the adjustment amount exceeds the adjustment range of adjustment component 5, or the wall panel verticality exceeds the allowable deviation, the system issues a warning and restricts the corresponding wall panel from entering the next construction process.

[0052] S10. Transmit on-site installation data. During the on-site installation process, record the arrival time, installation time, actual installation coordinates, verticality, panel joint width, actual adjustment amount of the adjusting parts, installation status of the clamp 44, installation status of the elastic gasket 62, and construction status of the mortar layer 64 for each ALC wall panel 1 through mobile terminals, wall panel QR codes, or measuring equipment. The on-site measured data is associated with the corresponding ALC wall panel 1 code and transmitted back to the digital twin model, so that the wall panel status in the model is updated sequentially from the pending installation status to the installation status, the adjustment status, the fixed status, the acceptance status, or the acceptance status.

[0053] S11. Update the as-built digital twin model. After the wall panels are installed, write the actual coordinates, actual verticality, actual adjustment amount of adjustment component 5, actual installation status of connection component 6, construction photos and acceptance results of each ALC wall panel 1 into the digital twin model to form an as-built model corresponding to the actual site conditions. When wall panel cracks, leaks or loose connections occur during subsequent use, the production batch, actual installation location, connection node parameters, construction records and acceptance records can be queried according to the unique code of the corresponding ALC wall panel 1 in order to determine the cause of the problem and formulate a repair plan.

[0054] Through the above-mentioned digital twin construction simulation, problems such as structural deviations, layout conflicts, hoisting collisions and insufficient adjustment strokes can be found before the actual installation of ALC wall panel 1. Furthermore, the adjustment amount of adjustment component 5 can be determined in advance based on the on-site measured data, thereby improving the installation efficiency and accuracy of ALC wall panel 1.

[0055] Example 2: Reference Figure 5 This embodiment is largely the same as Embodiment 1, except that: the adjusting component includes an upper pad 91 fixed on the connecting plate 51, a lower pad 92 provided on the base plate 7, continuous toothed grooves 93 opened on the inclined surfaces of the upper pad 91 and the lower pad 92 on opposite sides, and through holes 94 opened on the upper pad 91 and the lower pad 92. The same bolt kit is inserted into the two through holes 94. The upper pad 91 and the lower pad 92 are engaged by the toothed grooves 93. By the relative movement between the upper pad 91 and the lower pad 92, the lateral displacement of the upper pad 91 and the lower pad 92 can be converted into the vertical displacement of the connecting plate 51. Moving the horizontal position of the lower pad 92 can adjust the installation height and verticality of the ALC wall panel 1. The continuously provided toothed grooves 93 can perform graded positioning of the upper pad 91 and the lower pad 92. After adjustment, the upper pad 91 and the lower pad 92 can be locked by the bolt kit to keep the upper pad 91 and the lower pad 92 stable after the wall panel is installed.

[0056] Example 3: Reference Figure 6This embodiment is largely the same as Embodiment 1, except that: the adjustment component 5 includes multiple toothed grooves 101 formed on the top and bottom of the ALC wall panel 1, and long pads 102 that engage with the toothed grooves 101. The toothed grooves 101 are set along the length of the ALC wall panel 1, and the length of the long pads 102 is equal to the distance between two adjacent columns. The distance between two long pads 102 is equal to the width of the base plate 7. The long pads 102 are set so that when the ground is relatively flat, the two long pads 102 can be placed into the toothed grooves 101 at the bottom of the ALC wall panel 1 respectively. The support height of the ALC wall panel 1 can be adjusted by the different tooth positions between the long pads 102 and the toothed grooves 101. After reaching a suitable height and verticality, the long pads 102 can be placed into the toothed grooves 101 at the top of the ALC wall panel 1, which is more convenient during installation.

[0057] Example 4: Reference Figure 7 This embodiment is largely the same as embodiment 3, except that: the adjustment component 5 includes multiple toothed grooves 101 formed on the top and bottom of the ALC wall panel 1, and multiple short pads 111 that engage with the toothed grooves 101. The length of the short pads 111 is equal to the length of the ALC wall panel 1. They can be locally adjusted according to the actual elevation deviation of different positions at the bottom of the ALC wall panel 1, reducing the uneven support caused by unevenness of the surface of the structural floor slab 3 or the dimensional deviation of the bottom of the wall panel. The multiple short pads 111 make the force on the bottom of the wall panel more uniform and improve the flexibility of wall panel installation and adjustment. In use, by adjusting the placement position of the multiple short pads 111 between the toothed grooves 101 and the ground height, the height of the ALC wall panel 1 can be adjusted until the appropriate position is reached. Then, two short pads 111 are placed in the gap between the top of the ALC wall panel 1 and the base plate 7, and then cement mortar is used to coat the joint.

[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable positioning and crack-resistant connection node for prefabricated ALC wall panels, comprising an ALC wall panel (1) and structural beams (2) and structural floor slabs (3) respectively disposed at the top and bottom of the ALC wall panel (1); Its features are, The ALC wall panel (1) is provided with an adjustment component (5) for adjusting the verticality of the ALC wall panel (1) between the structural beam (2) and the structural floor slab (3), and a connection component (6) for sealing the gap between the ALC wall panel (1) and the column. The structural beams (2) and the structural floor slabs (3) are provided with base plates (7) on opposite sides, and pre-embedded steel bars (8) are embedded between the base plates (7) and the structural beams (2) and the structural floor slabs (3). The adjustment assembly (5) includes the same connecting plate (51) located at the top and bottom of two adjacent ALC wall panels (1) and multiple adjustment components located between the connecting plate (51) and the opposite side of the structural floor slab (3) and structural beam slab (2). The connecting plate (51) is a U-shaped plate. The connecting assembly (6) includes multiple mounting slots (61) opened on the side of the ALC wall panel (1) near the column, elastic gaskets (62) provided on the ALC wall panel (1), insulation cloth (63) fixed on one side of the elastic gaskets (62), and mortar layer (64) filled between the ALC wall panel (1) and the column, with the mortar layer (64) wrapped around the outside of the insulation cloth (63).

2. The adjustable positioning and crack-resistant connection node of the prefabricated ALC wall panel according to claim 1, characterized in that, The adjusting component includes a screw (52) fixed to the bottom of the connecting plate (51), a hollow sleeve (53) fixed to the structural floor slab (3) and the structural beam slab (2), and a rotating bolt (54) rotatably mounted on the hollow sleeve (53). The screw (52) is threadedly connected to the rotating bolt (54), and a hollow cavity (55) is provided inside the hollow sleeve (53) for the screw (52) to enter.

3. The adjustable positioning and crack-resistant connection node of the prefabricated ALC wall panel according to claim 2, characterized in that, The number of the adjusting components is two, and they are symmetrically distributed on the left and right sides of the vertical central axis of the connecting plate (51); The two adjacent ALC wall panels (1) are symmetrically distributed on the left and right sides of the vertical central axis of the connecting plate (51).

4. The adjustable positioning and crack-resistant connection node of the prefabricated ALC wall panel according to claim 1, characterized in that, The ALC wall panel (1) has an inner groove (41) and an outer protrusion (42) at both ends respectively. The adjacent inner grooves (41) and outer protrusions (42) cooperate with each other. The cross-sectional shape of the outer protrusion (42) is an isosceles trapezoid, and the short side of the isosceles trapezoid is perpendicular to the ALC wall panel (1).

5. The adjustable positioning and crack-resistant connection node of the prefabricated ALC wall panel according to claim 4, characterized in that, The inner groove (41) and the outer protrusion (42) are both provided with slots (43) on the opposite side, and the same locking rod (44) is provided in the two slots (43); The number of the slots (43) is not less than two, and they are evenly distributed on the side opposite to the inner groove (41) and the outer protrusion (42).

6. The adjustable positioning and crack-resistant connection node of the prefabricated ALC wall panel according to claim 1, characterized in that, The elastic gasket (62) has a plurality of mounting blocks (65) extending from the side near the mounting groove (61) into the mounting groove (61); The elastic gasket (62) has a recessed groove, and a screw that passes through the recessed groove and extends into the ALC wall panel (1) is inserted into the recessed groove.

7. The adjustable positioning and crack-resistant connection node of the prefabricated ALC wall panel according to claim 1, characterized in that, The width of the elastic pad (62) is equal to the width of the ALC wall panel (1); The insulation cloth (63) is an alkali-resistant fiberglass mesh cloth.

8. The adjustable positioning and crack-resistant connection node of the prefabricated ALC wall panel according to claim 1, characterized in that, The adjusting component includes an upper pad (91) fixed on a connecting plate (51), a lower pad (92) provided on a base plate (7), continuous toothed grooves (93) formed on the inclined surfaces of the upper pad (91) and the lower pad (92) on opposite sides, and through holes (94) formed on the upper pad (91) and the lower pad (92). The same bolt kit is inserted into the two through holes (94), and the upper pad (91) and the lower pad (92) are engaged by the toothed grooves (93).

9. The adjustable positioning and crack-resistant connection node of the prefabricated ALC wall panel according to claim 1, characterized in that, The adjustment component (5) includes multiple toothed grooves (101) opened on the top and bottom of the ALC wall panel (1), and a long pad (102) that engages with the toothed grooves (101). The toothed grooves (101) are arranged along the length direction of the ALC wall panel (1), and the length of the long pad (102) is equal to the distance between two adjacent columns. The distance between the two long pads (102) is equal to the width of the substrate (7).

10. The adjustable positioning and crack-resistant connection node of the prefabricated ALC wall panel (1) according to claim 1, characterized in that, The adjustment component (5) includes multiple toothed grooves (101) formed on the top and bottom of the ALC wall panel (1), and multiple short pads (111) that engage with the toothed grooves (101). The length of the short pads (111) is equal to the length of the ALC wall panel (1).

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