High-precision and quick-disassembly type installation method for large-size building block theme external facade

Abstract

The invention relates to a high-precision and quick-release mounting method for a large-size building block theme facade, which comprises the following steps of: dividing a building facade into orthogonal grids, mounting an adjustable vertical keel by using an angle steel notch and a split bolt, and then welding a transverse keel to form a reference. Upper and lower hanging pieces are arranged on the back of each large-size building block prefabricated in a factory; the lower hanging pieces are meshed with positioning hanging piece slots in the transverse keels and are self-limited by + / -1mm; and the upper pendant is fixed by two self-tapping screws and can be singly detached within 15 minutes. 2 mm rubber strips are embedded between the layers and absorb 2 mm heat to expand. The two reference straight lines are subjected to one-time lofting and inserted and hung one by one from bottom to top, and the abutted seam is smaller than or equal to 1 mm. The building block theme outer vertical face is formed at a time, and the building block is easy to maintain all the time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of exterior decoration installation, in particular to a high-precision and quick-release installation method for a large-size building block theme exterior facade. BACKGROUND

[0002] With the rapid development of theme park economy, building block theme buildings have become an important carrier of the tourism industry due to their unique visual appeal and cultural symbolic value. The core feature of the building block theme exterior facade represented by the Lego park is to form a three-dimensional geometric effect by connecting regular modules, which requires the width error of the panel joint to be ≤2mm, the surface flatness deviation to be ≤1mm, and the local 50-year wind load standard value to be borne.

[0003] Lego parks, building block towns and other projects usually use colored building block panels to simulate pixelized facade effects. In order to achieve visual impact, building block panels are often designed to be 1:1 true scale, with a single block size of up to 600mm x 1200mm or even larger, a thickness of 20mm-40mm, and materials including ABS, ASA, PMMA and fiber concrete composite panels. Limited by mold cost, panel modules must be uniform, and joint tolerance must be controlled within ±1mm, otherwise the overall pixel pattern will be distorted.

[0004] Lego-style building block panels require strict module, uniform joint, and flat surface, but traditional curtain wall hanging or point hanging methods cannot adjust each "building block" in three dimensions, resulting in uneven joints, misaligned panels, and a "sawtooth" or "wavy" facade that disrupts the geometric order of the building block theme. The height of a single building block panel is usually 600mm-1200mm, and the weight is 20kg-50kg. The traditional "first weld keel, then hang panel" process lacks adjustable links in terms of verticality and flatness, and can only be "positioned once" on site. Any deviation will result in the entire panel being scrapped and reworked, resulting in low installation efficiency and high damage rate.

[0005] The existing method generally uses structural glue or full-welding fixation, and when a single building block is damaged, the surrounding panels must be removed for replacement, resulting in a long maintenance window and damage to adjacent finishes, which cannot meet the high-frequency operation and rapid maintenance requirements of theme parks. SUMMARY

[0006] The present application aims to overcome the defects of the prior art and provide a high-precision and quick-release installation method for a large-size building block theme exterior facade, which solves the problems of low assembly precision, inability to deform and coordinate, and high maintenance cost.

[0007] To solve the above technical problems, the present application is implemented as follows: A high-precision and quick-release installation method for a large-size building block theme exterior facade, characterized in that it comprises: a) Using two orthogonal reference lines as control grids, fix the positioning hangers on the grid formed by the vertical and horizontal keels to form the facade pixel reference; b) Each large-sized building block is prefabricated as an integral component in the factory, with an upper and lower hanger on its back. The lower hanger and the positioning hanger form a male and female slot mechanical fit to achieve self-limiting of the splice within ±1 mm. c) A rubber strip flexible buffer is installed between the upper and lower hangers of adjacent building blocks to make the building blocks and the keel rigidly locked and elastically displaced, absorbing thermal expansion and contraction displacement of ≥2 mm. d) The vertical keel is slidably fixed to the main building structure through the angle steel slot and tie bolts, allowing for ±3mm installation error and absorbing the thermal expansion displacement of the building blocks synchronously within the same node; e) The installation sequence is adopted from bottom to top, with each block connected to the horizontal keel only through a detachable self-tapping screw at the top, so that a single block can be replaced without damage within 15 minutes.

[0008] The high-precision, quick-release installation method for a large-size building block-themed facade is characterized in that: the gap between the male and female slot mechanical fit is 1 mm, and the slot depth is not less than 1.5 times the thickness of the hanger, so as to ensure the self-limiting accuracy of the splice.

[0009] The high-precision, quick-release installation method for a large-size building block-themed facade is characterized in that: the rubber strip flexible buffer is a EPDM foamed rubber strip with a thickness of 2 mm and a compression rebound rate of ≥70%, which is used to absorb temperature deformation and reduce noise.

[0010] The high-precision, quick-release installation method for a large-size building block-themed facade is characterized in that: the angle steel groove is formed by welding two parallel angle steels and an embedded plate to form a vertical insertion space; after the vertical keel is embedded in the space, it can be adjusted by ±3 mm sliding using tie bolts.

[0011] The high-precision, quick-release installation method for a large-size building block-themed facade is characterized in that: the positioning bracket is L-shaped, its horizontal limb is provided with a slot that matches the lower bracket tongue, and its vertical limb is fixed to the horizontal keel by self-tapping screws.

[0012] The high-precision, quick-release installation method for a large-size building block-themed facade is characterized by the following installation sequence: a) Starting from the center or corner of the facade, draw two reference straight lines, one horizontal and one vertical; b) First install the positioning bracket and check its straightness; the deviation should be ≤1 mm. c) Hang the building blocks layer by layer from bottom to top. After each building block is in place, re-measure the width of the joint. If necessary, make slight adjustments by moving the blocks slightly through the mounting slots. d) After completing each 3×3 area, use a laser level to check the flatness of the whole area to ensure that the final seam accuracy is ≤±1 mm.

[0013] The beneficial effects of this invention are as follows: As can be seen from the above technical solution, this application provides a high-precision, quick-release installation method for large-size modular facades. By prefabricating integrated modular blocks ("upper hanger + lower hanger") in the factory, the entire facade can be positioned on-site using only two mutually perpendicular reference lines. This simplifies the complex process of point-by-point layout using a three-dimensional total station to an industrialized operation of "two lines + slot self-limiting". Actual measurements show that the joint error can be stably controlled within ±1 mm, truly achieving "pixel-level" geometric precision for modular facades.

[0014] This invention features a simple structure and fast construction speed; the modularity of the themed building blocks is high, requiring only one straight line in each direction for positioning, making positioning convenient; the building blocks are tightly connected, resulting in good overall integrity; the decorative panels are assembled in a splicing manner, meeting creative requirements and highlighting the building block theme. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: Fig. 1 This is a schematic diagram of the overall invention.

[0016] Fig. 2 This is an enlarged schematic diagram of the embedded part.

[0017] Fig. 3 This is an enlarged schematic diagram of the upper and lower hanging parts. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0019] Example 1 like Figs. 1-3 As shown: A high-precision, quick-release installation method for large-sized modular facades, comprising: a) Using two orthogonal reference lines as control grids, fix the positioning hangers on the grid formed by the vertical and horizontal keels to form the facade pixel reference; b) Each large-sized building block is prefabricated as an integral component in the factory, with an upper and lower hanger on its back. The lower hanger and the positioning hanger form a male and female slot mechanical fit to achieve self-limiting of the splice within ±1 mm. c) A rubber strip flexible buffer is installed between the upper and lower hangers of adjacent building blocks to make the building blocks and the keel rigidly locked and elastically displaced, absorbing thermal expansion and contraction displacement of ≥2 mm. d) The vertical keel is slidably fixed to the main building structure through the angle steel slot and tie bolts, allowing for ±3mm installation error and absorbing the thermal expansion displacement of the building blocks synchronously within the same node; e) The installation sequence is adopted from bottom to top, with each block connected to the horizontal keel only through a detachable self-tapping screw at the top, so that a single block can be replaced without damage within 15 minutes.

[0020] The gap between the male and female slot mechanical fit is 1 mm, and the slot depth is not less than 1.5 times the thickness of the hanger, so as to ensure the self-limiting accuracy of the splice.

[0021] The flexible buffer component of the rubber strip is a EPDM foamed rubber strip with a thickness of 2 mm and a compression resilience of ≥70%, used to absorb temperature deformation and reduce noise.

[0022] The angle steel slot is formed by welding two parallel angle steels to an embedded plate to create a vertical insertion space; after the vertical keel is embedded in this space, it can be adjusted by ±3 mm of sliding using tie bolts.

[0023] The positioning bracket is L-shaped, with its horizontal limb having a slot that matches the lower bracket's tongue, and its vertical limb being fixed to the horizontal keel by self-tapping screws.

[0024] The installation sequence includes: a) Starting from the center or corner of the facade, draw two reference straight lines, one horizontal and one vertical; b) First install the positioning bracket and check its straightness; the deviation should be ≤1 mm. c) Hang the building blocks layer by layer from bottom to top. After each building block is in place, re-measure the width of the joint. If necessary, make slight adjustments by moving the blocks slightly through the mounting slots. d) After completing each 3×3 area, use a laser level to check the flatness of the whole area to ensure that the final seam accuracy is ≤±1 mm.

[0025] Example 2 The facade installation for this theme includes the following steps: The installation sequence of this invention is as follows: embedded part installation → vertical main keel installation → horizontal keel installation → main building block installation. Step 1: During the construction of the main and secondary structures, embed part 1 is pre-embedded in place according to the detailed positioning (or a post-embedded part can be selected according to the construction site conditions). Embedded part 1 is welded from embedded plate 1.1 and two angle steels 1.2. One side of angle steel 1.2 is welded to embedded plate 1.1, and the other side is perpendicular to embedded plate 1.1. The gap formed by the two angle steels 1.2 is perpendicular to the ground, and the distance of the gap is determined by the width of the vertical keel 2. Two bolt holes need to be reserved at the same horizontal position for the two angle steels 1.2.

[0026] Step Two: After the external wall insulation and waterproofing are completed, connect the vertical keel 2 to the angle steel 1.2 using tie bolts 3. The connection is achieved as follows: the vertical keel 2 is embedded between the two angle steels 1.2. After positioning, drill holes in the vertical keel 2 according to the corresponding positions of the bolt holes reserved on the angle steel 1.2. Finally, the tie bolts 3 are passed through the holes at the same positions of the vertical keel 2 and the angle steel 1.2 to achieve the connection.

[0027] Step 3: The horizontal keel 4 is laid out according to the detailed drawings and welded to the vertical keel 2 to form an orthogonal relationship.

[0028] Step 4: Connect the theme block 5 to the horizontal keel 4 using self-tapping screws. The connection is achieved as follows: The theme block 5 consists of a theme block panel 5.1, a lower block hanger 5.2, and an upper block hanger 5.3. Secure the positioning hanger 6 to the horizontal keel 4 using self-tapping screws. Insert the lower block hanger 5.2 of the first layer of theme block 5 into the gap of the positioning hanger 6, aligning the bottom edge of the lower block hanger 5.2 with the top edge of the horizontal positioning hanger 6. Then, use self-tapping screws to anchor the upper block hanger 5.3 through the upper block hanger 5.3 and secure it to the horizontal keel 4, thus positioning the first block. Repeat the installation method for each subsequent layer of theme block 5.

[0029] The above technical solution has the following advantages: Thematic precision control structure: For the first time, the purely visual concept of "building block pixels" is transformed into an industrially implementable precision control system: Using "double straight line reference + upper and lower male and female hanging parts", the traditional curtain wall's "three-dimensional error adjustment" is reduced to "two straight lines aligned", and the millimeter-level error control is moved from "on-site manual adjustment" to "factory modular prefabrication + slot self-limiting", solving the industry problem that large-sized building blocks cannot be arbitrarily fine-tuned like real Lego.

[0030] Slot-Buffer Composite Connection Node: This node integrates both "mechanical slot positioning" and "rubber strip flexible buffering" functions at the hanger level. The slot ensures a seam accuracy of ±1 mm, while the rubber strip provides a 2 mm displacement margin. This node combines rigid locking with elastic release, breaking through the traditional binary opposition of either "hard connection" or "all-glued seam," and achieving a balance between "high precision" and "high safety."

[0031] The detachable layered construction logic: Through the sandwich layered design of "one layer of building blocks → one layer of positioning brackets → horizontal keel", the advantage of "removing one block without disturbing the adjacent blocks" in the factory prefabrication of unitized curtain walls is brought down to the on-site bulk assembly system, so that large-size, non-standard building block veneers can also achieve "15-minute quick replacement", filling the technical gap of "maintainability" in the high-frequency operation and maintenance scenario of theme parks.

[0032] Error absorption and keel adjustment are integrated: The vertical keel adopts the "angle steel groove + tie bolt sliding" structure, which absorbs the installation error of the keel itself (±3 mm) and the thermal expansion displacement of the building blocks (±1.5 mm) in the same set of nodes. There is no need to add expansion joints or secondary adapters. The structure is extremely simple and the process is minimal, but it solves the two major pain points of "installation error tolerance" and "temperature deformation" at the same time.

[0033] In summary, this solution couples the four requirements of "theme expression, precision control, flexible safety, and maintainability" into a minimalist node and process system.

[0034] The above are merely embodiments provided in this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-precision, quick-release installation method for a large-size building block-themed facade, characterized in that... It includes: a) Using two orthogonal reference lines as the control network, fix the positioning hangers on the grid formed by the vertical and horizontal keels to form the facade pixel reference; b) Each large-sized building block is prefabricated as an integral component in the factory, with an upper and lower hanger on its back. The lower hanger and the positioning hanger form a male and female slot mechanical fit to achieve self-limiting of the splice within ±1 mm. c) A rubber strip flexible buffer is installed between the upper and lower hangers of adjacent building blocks to make the building blocks and the keel rigidly locked and elastically displaced, absorbing thermal expansion and contraction displacement of ≥2 mm. d) The vertical keel is slidably fixed to the main building structure through the angle steel slot and tie bolts, allowing for ±3 mm installation error and absorbing the thermal expansion displacement of the building blocks synchronously within the same node; e) The installation sequence is adopted from bottom to top, with each block connected to the horizontal keel only through a detachable self-tapping screw at the top, so that a single block can be replaced without damage within 15 minutes.

2. The high-precision, quick-release installation method for a large-size building block-themed facade according to claim 1, characterized in that: The gap between the male and female slot mechanical fit is 1 mm, and the slot depth is not less than 1.5 times the thickness of the hanger, so as to ensure the self-limiting accuracy of the splice.

3. The high-precision, quick-release installation method for a large-size building block-themed facade according to claim 1, characterized in that: The flexible buffer component of the rubber strip is a EPDM foamed rubber strip with a thickness of 2 mm and a compression resilience of ≥70%, used to absorb temperature deformation and reduce noise.

4. The high-precision, quick-release installation method for a large-size building block-themed facade according to claim 1, characterized in that: The angle steel slot is formed by welding two parallel angle steels to an embedded plate to create a vertical insertion space; after the vertical keel is embedded in this space, it can be adjusted by ±3 mm of sliding using tie bolts.

5. The high-precision, quick-release installation method for a large-size building block-themed facade according to claim 1, characterized in that: The positioning bracket is L-shaped, with its horizontal limb having a slot that matches the lower bracket's tongue, and its vertical limb being fixed to the horizontal keel by self-tapping screws.

6. The high-precision, quick-release installation method for a large-size building block-themed facade according to claim 1, characterized in that... The installation sequence includes: a) Starting from the center or corner of the facade, draw two reference straight lines, one horizontal and one vertical; b) First install the positioning bracket and check its straightness; the deviation should be ≤1 mm. c) Hang the building blocks layer by layer from bottom to top. After each building block is in place, re-measure the width of the joint. If necessary, make slight adjustments by moving the blocks slightly through the mounting slots. d) After completing each 3×3 area, use a laser level to check the flatness of the whole area to ensure that the final seam accuracy is ≤±1mm.

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