Multi-directional adjustment hanging system for building facade aluminum alloy plate and construction method

Abstract

The present application relates to a kind of multi-directional adjustment hanging systems for building facade aluminum alloy plate, it is characterized in that it includes: pre-buried fixed system, installation in the outside of building main structure;Three-dimensional multi-directional adjustment hanging system, detachably fixed in the pre-buried fixed system, and at least with the universal rotation pair around the ball center and the linear sliding pair in at least one direction;Aluminum alloy plate connecting system, aluminum alloy plate is detachably fixed in the three-dimensional multi-directional adjustment hanging system, and allow aluminum alloy plate to be absorbed displacement by the universal rotation pair and linear sliding pair when thermal expansion and contraction;The present application uses the way of " universal ball hinge + sliding groove " composite component connection fixation, aluminum plate outer wall can be adjusted from three-dimensional angle when installation, also reduce the dependence on base keel precision, realize the control of ±0.3mm joint precision after installation, and the thermal expansion and contraction displacement of aluminum plate outer wall is absorbed by hanging system, avoids stress deformation.

Description

Technical Field

[0001] This invention relates to the field of building facade decoration, specifically to a multi-directional adjustable hanging system and construction method for aluminum alloy panels on building facades. Background Technology

[0002] In the field of building facade decoration, aluminum alloy panels are widely used due to their lightweight, weather resistance, and diverse shapes. Traditionally, the installation of aluminum panel exterior walls mostly employs welding or bolting methods, fixing the panels to the existing building's main wall or structure via a framing system. However, traditional fixing methods have the following drawbacks: Uncontrolled seam precision: The keel system of traditional aluminum panel curtain walls relies on on-site welding or manual drilling. Accumulated deviations lead to inaccurate positioning of aluminum panels. There is a lack of fine-tuning mechanisms between panels, and seam errors are often "forced" to correct, resulting in misalignment, jagged edges, or broken lines of ±2 to 5 mm. This cannot meet the requirements of high-visual-requirement themed buildings for a "zero-flaw" facade.

[0003] Temperature stress deformation: The coefficient of linear expansion of aluminum alloy is as high as 23×10⁻ 6 At a temperature of 60℃, a 3-m long panel theoretically expands and contracts by about 4 mm under a 60℃ temperature difference. Traditional rigid connections directly transmit this displacement to the panel and the adhesive joint. Repeated expansion and contraction can cause bulging, warping, and even tearing of the weather-resistant adhesive, resulting in leakage and cosmetic damage.

[0004] The installation error tolerance is too low: the traditional method requires the keel to be positioned with an accuracy of ≤1 mm in one go. The combined error of on-site layout, welding and drilling is very easy to exceed the standard. Once the error accumulates, it can only be reworked or forcibly hammered, which leads to the delay of the construction period and the increase of costs.

[0005] Difficulty in later maintenance: Fixed connections make it impossible to disassemble individual aluminum plates, requiring large-scale removal during maintenance, which increases operation and maintenance costs. Summary of the Invention

[0006] This invention aims to overcome the shortcomings of existing technologies and provide a multi-directional adjustable hanging system and construction method for aluminum alloy panels on building facades, solving the problems of difficult control of the splicing accuracy of aluminum panel exterior walls and temperature stress deformation.

[0007] To solve the above-mentioned technical problems, the present invention is implemented as follows: A multi-directional adjustable mounting system for aluminum alloy panels on building facades, characterized in that it comprises: Pre-embedded fixing system, installed on the outside of the main building structure; A three-dimensional multi-directional adjustable mounting system is detachably fixed to the pre-embedded fixing system and has at least a universal rotating joint around the center of the ball and a linear sliding joint along at least one direction. The aluminum alloy plate connection system detachably fixes the aluminum alloy plate to the three-dimensional multi-directional adjustment and hanging system, and allows the aluminum alloy plate to absorb displacement through the universal joint and linear sliding joint when it expands and contracts with heat. Starting from the center point of the facade, aluminum alloy panels are installed one by one in a radial installation sequence. After each set area is completed, laser measurement and torque control are used to tighten the panels, ensuring that the joint accuracy between the panels is within ±0.3 mm.

[0008] The multi-directional adjustable hanging system for aluminum alloy panels on building facades is characterized in that the pre-embedded fixing system includes: Pre-embedded steel plates are fixed to the exterior wall of the building using expansion bolts; The main keel is welded to the pre-embedded steel plate; Secondary keels are welded longitudinally and transversely to the main keel; The main and secondary keels together form a grid-like load-bearing frame.

[0009] The multi-directional adjustable mounting system for aluminum alloy panels on building facades is characterized in that the three-dimensional multi-directional adjustable mounting system comprises: The base has a base plate and a ball joint groove, wherein the base plate is fixed to the secondary keel node by self-tapping bolts; The ball joint is composed of a chromium-nickel alloy steel hemisphere and a support rod. The hemisphere is rotatably housed in the ball joint groove, and the support rod is provided with a linear slot. The irregularly shaped stainless steel plate connector has one end slidably connected to the support rod via a self-tapping bolt located in the groove, and the other end is fixed to the lower part of the aluminum alloy plate via a self-tapping bolt. The base plate is also fixed to the upper part of the aluminum alloy plate by self-tapping bolts, forming a hanging structure with double-point connection at the top and bottom and universal adjustment of the ball joint in the middle.

[0010] The multi-directional adjustable mounting system for aluminum alloy panels on building facades is characterized in that: the ball joint groove is a near-spherical groove with a diameter of Φ30±0.1 mm, and the radius of curvature of the hemisphere matches the ball joint groove, allowing the ball joint to swing in all directions within a range of ±15°.

[0011] The multi-directional adjustable mounting system for aluminum alloy panels on building facades is characterized in that: the linear sliding pair is achieved by the cooperation of the elongated slot on the support rod and the self-tapping bolt on the irregular stainless steel plate connector, allowing the aluminum alloy panel to be finely positioned within a horizontal range of ±5 mm.

[0012] The construction method of the multi-directional adjustable hanging system for aluminum alloy panels on building facades is characterized by the following steps: a) Determine the center point of the facade and install the initial three-dimensional multi-directional adjustable mounting system; b) Install the reference plate, and hang the aluminum alloy plates one by one radially outward along the cross axis, leaving a 5mm gap between each plate; c) After completing each 3×3 panel area, use a cross laser gauge to check the verticality and joint flatness, and then verify with calipers; d) Use a torque limiting wrench to tighten all self-tapping bolts to ensure both sufficient connection strength and allowance for minor adjustments to the plate; e) Repeat steps b) to d) until the entire facade is completed, with the final joint accuracy controlled at ±0.3mm.

[0013] The construction method of the multi-directional adjustable hanging system for aluminum alloy panels on building facades is characterized in that: when the base plate is installed, the horizontal azimuth angle is first adjusted by a universal ball joint, and then the axial position is adjusted by a sliding groove, with an adjustment range of ±8mm and an adjustment accuracy of 0.1mm.

[0014] The beneficial effects of this invention are as follows: As can be seen from the above technical solution, this application provides a multi-directional adjustable hanging system and construction method for aluminum alloy panels on building facades, using a composite component connection and fixing method of "universal ball hinge + sliding groove". From an installation perspective, the aluminum panel exterior wall can be adjusted from three-dimensional angles during installation, while also reducing reliance on the precision of the base keel, increasing the construction error tolerance rate by 50%. From an acceptance perspective, it achieves control of the ±0.3mm joint accuracy after installation. From a practical use perspective, the thermal expansion and contraction displacement of the aluminum panel exterior wall is absorbed by the hanging system, avoiding stress deformation. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of a ball joint.

[0017] Figure 3 This is a schematic diagram of a ball joint groove. 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] like Figure 1-3As shown: A multi-directional adjustable mounting system for aluminum alloy panels on building facades, comprising: Pre-embedded fixing system, installed on the outside of the main building structure; A three-dimensional multi-directional adjustable mounting system is detachably fixed to the pre-embedded fixing system and has at least a universal rotating joint around the center of the ball and a linear sliding joint along at least one direction. The aluminum alloy plate connection system detachably fixes the aluminum alloy plate to the three-dimensional multi-directional adjustment and hanging system, and allows the aluminum alloy plate to absorb displacement through the universal joint and linear sliding joint when it expands and contracts with heat. Starting from the center point of the facade, aluminum alloy panels are installed one by one in a radial sequence, with a 5mm gap left between each panel. A cross-shaped laser gauge is used to check the verticality of the aluminum panels and the flatness of the joints. A torque-limiting wrench is used to control the bolt tightening force to avoid over-tightening.

[0020] The pre-embedded fixing system includes: The pre-embedded steel plate 2 is fixed to the exterior wall of the building by expansion bolts 1; The main keel 3 is welded to the pre-embedded steel plate; Secondary keels 4 are welded longitudinally and transversely to the main keel; The main and secondary keels are made of square steel pipes. The keels are divided into main keels 3 and secondary keels 4, which are arranged longitudinally and transversely and welded to the embedded parts.

[0021] The three-dimensional multi-directional adjustable coupling system includes: The base has a base plate 5 and a ball joint groove 7, wherein the base plate is fixed to the main and secondary keels by self-tapping bolts 6; The ball joint 8 is composed of a chromium-nickel alloy steel hemisphere and a support rod. The hemisphere is rotatably housed in the ball joint groove, and the support rod is provided with a linear groove. The irregularly shaped stainless steel plate connector 12 has one end slidably connected to the support rod via a self-tapping bolt 11 located in the slot, and the other end is fixed to the lower part of the aluminum alloy plate 10 via a self-tapping bolt 9. The base plate is also fixed to the upper part of the aluminum alloy plate by self-tapping bolts, forming a hanging structure with double-point connection at the top and bottom and universal adjustment of the ball joint in the middle.

[0022] The ball joint groove is a near-spherical groove with a diameter of Φ30±0.1 mm. The radius of curvature of the hemisphere matches the ball joint groove, allowing the ball joint to swing in all directions within a range of ±15°.

[0023] The linear sliding pair is achieved by the engagement of the elongated slot on the support rod with the self-tapping bolt on the irregular stainless steel plate connector, allowing the aluminum alloy plate to be finely positioned within a horizontal range of ±5 mm.

[0024] A construction method for a multi-directional adjustable mounting system for aluminum alloy panels on building facades, comprising the following steps: Step 1: After the main and secondary keels 3 / 4 are cross-welded to the pre-embedded steel plate 2, the base 5 is welded to the node of the secondary keel 4, with a positional error of ≤3mm; Step 2: Press the ball joint 8 into the ball joint groove 7, and apply molybdenum disulfide grease to the ball joint; Step 3: The lower part of the upper aluminum plate is fixed to the irregular connector 12 using self-tapping screws 9; Step 4: The aluminum plate connector assembly is connected to the ball joint 8 using self-tapping bolts 11; Step 5: The upper part of the lower aluminum plate is fixed to the base plate using self-tapping screws 9; Step 6: After rough positioning, use a cross laser instrument to adjust the universal ball joint and the groove so that the laser line coincides with the designed seam line; Step 7: Tighten the self-tapping screws 11 to the specified torque to complete the single-board installation; Step 8: After installing every 9 boards, use a cross laser gauge to check the seam accuracy and straightness (allowable error 0.2mm).

[0025] The construction method for controlling staggered joints includes the following steps: a) Determine the center point of the facade and install the initial three-dimensional multi-directional adjustable mounting system; b) Install the reference plate, and hang the aluminum alloy plates one by one radially outward along the cross axis, leaving a 5mm gap between each plate; c) After completing each 3×3 panel area, use a cross laser gauge to check the verticality and joint flatness, and then verify with calipers; d) Use a torque limiting wrench to tighten all self-tapping bolts to ensure both sufficient connection strength and allowance for minor adjustments to the plate; e) Repeat steps b) to d) until the entire facade is completed, with the final joint accuracy controlled at ±0.3mm.

[0026] When installing the reference plate, first adjust the horizontal azimuth angle using the universal ball joint, and then adjust the axial position using the sliding groove. The adjustment range is ±8mm, and the adjustment accuracy is 0.1mm.

[0027] When the aluminum alloy plate expands and contracts due to heat, the displacement is first absorbed by the universal rotation of the ball joint, and the remaining displacement is absorbed by the linear sliding pair, thereby avoiding stress concentration and plate warping deformation.

[0028] This invention utilizes a composite adjustment mechanism of "universal ball joint + bidirectional sliding groove" to progressively eliminate installation errors of the keel in three-dimensional space, eliminating the need for repeated cutting or welding on-site. Construction tests show that the joint error can be stably reduced from the traditional ±2–5 mm to ±0.3 mm, meeting the "zero-defect" facade standard for high-visual-requirement themed buildings.

[0029] The theoretical expansion and contraction of the aluminum alloy panel under a 60℃ temperature difference can be absorbed by the ±15° swing of the ball joint and the ±5 mm linear displacement of the sliding groove, resulting in a total margin of 9 mm, far exceeding the actual requirement of 4 mm. The panel and the keel always maintain a "movable non-rigid" connection, eliminating bulging, warping, and tearing of the weather-resistant sealant, thus extending the service life of the curtain wall.

[0030] The initial positioning error of the keel can be relaxed to ≤3 mm, which can be compensated for later by ball joints and sliding grooves; the radial installation sequence, combined with laser / caliper segmented verification, "cuts off" the error within the 3×3 plate area, preventing it from accumulating further. On-site rework rate is reduced by more than 50%, and the overall construction period is shortened by 15% to 20%.

[0031] All connections in this application are mechanically secured with self-tapping bolts. During maintenance, any aluminum plate can be removed simply by loosening the corresponding bolts, without the need for large-scale dismantling or hot work. According to operational statistics, the replacement time for a single piece has been reduced from the traditional 4-6 hours to less than 30 minutes, significantly reducing subsequent maintenance costs.

[0032] 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 multi-directional adjustable mounting system for aluminum alloy panels on building facades, characterized in that... It includes: Pre-embedded fixing system, installed on the outside of the main building structure; A three-dimensional multi-directional adjustable mounting system is detachably fixed to the pre-embedded fixing system and has at least a universal rotating joint around the center of the ball and a linear sliding joint along at least one direction. The aluminum alloy plate connection system detachably fixes the aluminum alloy plate to the three-dimensional multi-directional adjustment and hanging system, and allows the aluminum alloy plate to absorb displacement through the universal joint and linear sliding joint when it expands and contracts with heat. Starting from the center point of the facade, aluminum alloy panels are installed one by one in a radial installation sequence. After each set area is completed, laser measurement and torque control are used to tighten the panels, ensuring that the joint accuracy between the panels is within ±0.3 mm. The three-dimensional multi-directional adjustable coupling system includes: The base has a base plate and a ball joint groove, wherein the base plate is fixed to the secondary keel node by self-tapping bolts; The ball joint is composed of a chromium-nickel alloy steel hemisphere and a support rod. The hemisphere is rotatably housed in the ball joint groove, and the support rod is provided with a linear slot. The irregularly shaped stainless steel plate connector has one end slidably connected to the support rod via a self-tapping bolt located in the groove, and the other end is fixed to the lower part of the aluminum alloy plate via a self-tapping bolt. The base plate is also fixed to the upper part of the aluminum alloy plate by self-tapping bolts, forming a hanging structure with double-point connection at the top and bottom and universal adjustment of the ball joint in the middle; The ball joint groove is a near-spherical groove with a diameter of Φ30±0.1 mm. The radius of curvature of the hemisphere matches the ball joint groove, allowing the ball joint to swing in all directions within a range of ±15°.

2. The multi-directional adjustable mounting system for aluminum alloy panels on building facades according to claim 1, characterized in that... The pre-embedded fixing system includes: Pre-embedded steel plates are fixed to the exterior wall of the building using expansion bolts; The main keel is welded to the pre-embedded steel plate; Secondary keels are welded longitudinally and transversely to the main keel; The main and secondary keels together form a grid-like load-bearing frame.

3. The multi-directional adjustable mounting system for aluminum alloy panels on building facades according to claim 1, characterized in that: The linear sliding pair is achieved by the engagement of the elongated slot on the support rod with the self-tapping bolt on the irregular stainless steel plate connector, allowing the aluminum alloy plate to be finely positioned within a horizontal range of ±5 mm.

4. The construction method of a multi-directional adjustable hanging system for aluminum alloy panels on building facades according to claim 1, characterized in that... Includes the following steps: a) Determine the center point of the facade and install the initial three-dimensional multi-directional adjustable mounting system; b) Install the reference plate, and hang the aluminum alloy plates one by one radially outward along the cross axis, leaving a 5 mm gap between each plate. c) After completing each 3×3 panel area, use a cross laser gauge to check the verticality and joint flatness, and then verify with calipers; d) Use a torque limiting wrench to tighten all self-tapping bolts to ensure both sufficient connection strength and allowance for minor adjustments to the plate; e) Repeat steps b) to d) until the entire facade is completed, with the final joint accuracy controlled at ±0.3mm.

5. The construction method of a multi-directional adjustable hanging system for aluminum alloy panels on building facades according to claim 4, characterized in that: When installing the reference plate, first adjust the horizontal azimuth angle using the universal ball joint, and then adjust the axial position using the sliding groove. The adjustment range is ±8mm, and the adjustment accuracy is 0.1mm.

Images