Heavy bare concrete curtain wall plate mounting method based on back-attached steel frame

Abstract

The invention discloses a heavy fair-faced concrete curtain wall plate mounting method based on a back-attached steel frame, and relates to the field of curtain wall mounting, and the method comprises the following specific steps: arranging a plurality of pre-anchoring assemblies for supporting and suspending on the back surface of a fair-faced concrete plate; a main keel rectangular pipe is installed on the outer vertical face of the wall body; the vertical galvanized steel rectangular pipe is connected with the fair-faced concrete slab through a pre-anchoring assembly; and the vertical galvanized steel rectangular pipe is hung on the main keel rectangular pipe through the combined hanging piece, and the height of the bare concrete slab is adjusted through the combined hanging piece. The pre-anchoring assemblies are designed on the back face of the fair-faced concrete plate, the anchoring strength of the curtain wall plate and the back connecting piece is enhanced, the rigid frame formed by welding the vertical galvanized steel rectangular pipes and the transverse galvanized steel rectangular pipes is attached to the plate body in a back-to-back mode, detachable connection with the main body keel is achieved through the adjustable combined hanging pieces, and the structure is simple and convenient. The heavy curtain wall plate is high in installation precision, can be finely adjusted after being in place, and is convenient and fast to operate.

Description

Technical Field

[0001] This invention relates to the field of curtain wall installation technology, and in particular to a method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame. Background Technology

[0002] Fair-faced concrete curtain walls are widely used in modern building facade design due to their heavy texture, natural grain and durability. However, heavy-duty fair-faced concrete curtain wall panels pose a serious challenge to the reliability, precision and ease of construction of the installation system due to their large single area and high weight.

[0003] Traditional installation methods typically involve pre-embedding metal parts within the concrete slab or using post-anchoring to connect it to the supporting structure. However, when dealing with some extremely heavy curtain walls, such as heavy-duty fair-faced concrete curtain wall panels, these methods often result in insufficient anchorage strength between the pre-embedded parts and the concrete. Under the weight of the heavy panel and external forces such as wind loads, there is a risk of loosening or even falling off, affecting structural safety. Furthermore, existing installation structures are not convenient to adjust, making it difficult to adjust heavy-duty fair-faced concrete curtain wall panels after installation.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide an installation method for heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame. This method greatly enhances the anchoring strength and overall stability of the curtain wall panel and the back-attached connector by using an integrally embedded trapezoidal convex anchor point and internally cross-welded steel bar anchor claws and stainless steel sleeves. Furthermore, a rigid frame formed by welding vertical and horizontal galvanized steel rectangular tubes is attached to the panel and detachably connected to the main keel through adjustable combination hangers. This results in high installation accuracy of the heavy-duty curtain wall panel, allowing for fine-tuning after positioning, and making the operation convenient and quick.

[0006] To achieve the above objectives, the present invention provides a method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame, the specific steps of which are as follows:

[0007] Step 1: Multiple pre-anchored components for supporting the suspension are installed on the back of the fair-faced concrete slab;

[0008] Step 2: Install the main keel rectangular tube on the exterior facade of the wall;

[0009] Step 3: Connect the vertical galvanized steel rectangular tube to the fair-faced concrete slab using pre-anchoring components;

[0010] Step 4: Hang the vertical galvanized steel rectangular tubes on the main keel rectangular tubes using the combination hangers, and adjust the height of the fair-faced concrete slab using the combination hangers.

[0011] In one embodiment of the present invention, the pre-anchoring assembly includes an inner convex anchor point integrally formed on the back side of the fair-faced concrete slab. A steel bar anchor claw and a stainless steel sleeve are pre-embedded inside the inner convex anchor point. The steel bar anchor claw is completely embedded within the inner convex anchor point in a direction parallel to the fair-faced concrete slab, and the stainless steel sleeve is embedded within the inner convex anchor point in a direction perpendicular to the fair-faced concrete slab. One end of the stainless steel sleeve is cross-welded to the steel bar anchor claw, and the other end extends to the outside of the inner convex anchor point. The stainless steel sleeve is integrally formed with the fair-faced concrete slab through the steel bar anchor claw. This not only significantly increases the strength and stability of the inner convex anchor point on the fair-faced concrete slab but also improves the installation stability of the stainless steel sleeve.

[0012] In one embodiment of the present invention, the inner convex anchor point adopts a stepped structure with a cross-section that gradually decreases from the side closer to the fair-faced concrete slab to the side farther away from the fair-faced concrete slab, which can significantly improve the connection stability between the inner convex anchor point and the fair-faced concrete slab.

[0013] In one embodiment of the present invention, the specific steps for installing the pre-anchoring component in step one are as follows: steel anchor claws are embedded at the corresponding positions of the mold for casting heavy-duty fair-faced concrete curtain wall panels, and stainless steel sleeves are welded to the steel anchor claws at preset positions, so that the stainless steel sleeves are fixed in a direction perpendicular to the fair-faced concrete panels, so that after the fair-faced concrete panels are cast and formed, the steel anchor claws and the stainless steel sleeves are both in preset positions within the inner convex anchor points.

[0014] In one embodiment of the present invention, a plurality of vertical galvanized steel rectangular tubes and two horizontal galvanized steel rectangular tubes are provided on the back side of the same fair-faced concrete slab. The two horizontal galvanized steel rectangular tubes weld the top and bottom of the plurality of vertical galvanized steel rectangular tubes to form a frame structure capable of suspending the fair-faced concrete slab. The number of vertical galvanized steel rectangular tubes is the same as the number of columns of the inner convex anchor points on the fair-faced concrete slab and their positions correspond. Galvanized angle steel is welded to the vertical galvanized steel rectangular tubes. The galvanized angle steel is fixedly connected to the stainless steel sleeve by stainless steel screws, so that the frame structure formed by the vertical galvanized steel rectangular tubes and the horizontal galvanized steel rectangular tubes is fixed to the back side of the fair-faced concrete slab.

[0015] In one embodiment of the present invention, the specific method for installing the main keel rectangular tube in step two is as follows: multiple hot-dip galvanized steel pipes are pre-embedded at a preset position in the wall. The hot-dip galvanized steel pipes are buried in the horizontal direction. The main keel rectangular tube is vertically set on the surface of the wall and the main keel rectangular tube is fixed at the position of the hot-dip galvanized steel pipe by bolts.

[0016] In one embodiment of the present invention, the combined hanging component includes a load-bearing angle steel, an adapter, and galvanized steel hanging ears. The load-bearing angle steel is welded to the outside of the main keel rectangular tube. The adapter is disposed above the load-bearing angle steel and is fixedly connected to the load-bearing angle steel by bolts. The galvanized steel hanging ears are fixed to the vertical galvanized steel rectangular tube by a set of fixing bolts. The galvanized steel hanging ears are hung on the adapter to realize the hanging of fair-faced concrete slabs.

[0017] In one embodiment of the present invention, both the load-bearing angle steel and the adapter adopt an L-shaped structure. The vertical end of the load-bearing angle steel is welded and fixed to the outside of the main keel rectangular tube. The horizontal ends of the load-bearing angle steel and the adapter are fixedly connected by bolts. The end of the galvanized steel hanging ear connected to the adapter has an opening below it. The opening below the galvanized steel hanging ear engages with the vertical end of the adapter, forming a detachable hanging structure.

[0018] In one embodiment of the present invention, a vertical adjusting bolt is inserted above the galvanized steel lug, the vertical adjusting bolt is located in the area above the opening structure of the galvanized steel lug, one end of the vertical adjusting bolt can extend into the opening structure on the galvanized steel lug, and a horizontal adjusting bolt is screwed into the front end of the galvanized steel lug, one end of the horizontal adjusting bolt extends into the opening structure on the galvanized steel lug.

[0019] In one embodiment of the present invention, the method for adjusting the height of the fair-faced concrete slab by combining the hangers in step four is as follows: After the fair-faced concrete slab is installed, the height of the fair-faced concrete slab is detected by an instrument. When the height of the fair-faced concrete slab is higher than the preset height and needs to be reduced, the vertical adjusting bolt is rotated to reduce the length of the vertical adjusting bolt extending into the opening structure on the galvanized steel hanger, thereby reducing the overall height of the fair-faced concrete slab. When the height of the fair-faced concrete slab is lower than the preset height and needs to be reduced, the vertical adjusting bolt is rotated to increase the length of the vertical adjusting bolt extending into the opening structure on the galvanized steel hanger, thereby increasing the overall height of the fair-faced concrete slab.

[0020] Compared with the prior art, the heavy-duty fair-faced concrete curtain wall panel installation method based on the back-attached steel frame according to the present invention greatly enhances the anchoring strength and overall stability of the curtain wall panel and the back-attached connector by using an integrally embedded trapezoidal inner protruding anchor point and internally cross-welded steel bar anchor claws and stainless steel sleeves. In addition, a rigid frame formed by welding vertical and horizontal galvanized steel rectangular tubes is attached to the panel and detachably connected to the main keel by adjustable combination hangers. This makes the installation accuracy of the heavy-duty curtain wall panel high, and it can be finely adjusted after being in place, making the operation convenient and quick. Attached Figure Description

[0021] Figure 1 This is an installation node for fair-faced concrete panels in a method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to an embodiment of the present invention. Figure 1 ;

[0022] Figure 2 This is an installation node for fair-faced concrete panels in a method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to an embodiment of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the fair-faced concrete panel structure in a heavy fair-faced concrete curtain wall panel installation method based on a back-attached steel frame according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the combined hanging component structure in the installation method of heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to an embodiment of the present invention.

[0025] Attached reference numerals: 1. Wall; 2. Fair-faced concrete slab; 20. Thickened section; 21. External groove; 22. Internal groove; 3. Combined hanger; 30. Load-bearing angle steel; 31. Adapter; 32. Galvanized steel hanging lug; 320. Vertical adjusting bolt; 321. Horizontal adjusting bolt; 322. Fixing bolt assembly; 4. Vertical galvanized steel rectangular tube; 40. Galvanized angle steel; 41. Stainless steel screw; 5. Pre-anchoring assembly; 50. Internally protruding anchor point; 51. Rebar anchor claw; 52. Stainless steel sleeve; 6. Hot-dip galvanized steel pipe; 7. Main keel rectangular tube; 8. Sealant; 9. Horizontal galvanized steel rectangular tube. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 The specific embodiments of the present invention will be described in detail, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0027] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0028] like Figure 1 - Figure 4 As shown, the installation method of heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to a preferred embodiment of the present invention includes the following specific steps:

[0029] Step 1: Multiple pre-anchor components 5 for supporting the suspension are installed on the back of the fair-faced concrete slab 2;

[0030] Step 2: Install the main keel rectangular tube 7 on the exterior facade of wall 1;

[0031] Step 3: Connect the vertical galvanized steel rectangular tube 4 to the fair-faced concrete slab 2 using the pre-anchoring assembly 5;

[0032] Step 4: Hang the vertical galvanized steel rectangular tube 4 on the main keel rectangular tube 7 using the combination hanger 3, and adjust the height of the fair-faced concrete slab 2 using the combination hanger 3.

[0033] Specifically, such as Figure 3 As shown, in order to connect the vertical galvanized steel rectangular tube 4 to the fair-faced concrete slab 2, in this embodiment, the pre-anchoring assembly 5 includes an inner convex anchor point 50, which is integrally formed on the back of the fair-faced concrete slab 2. The inner convex anchor point 50 has a steel bar anchor claw 51 and a stainless steel sleeve 52 pre-embedded inside. The steel bar anchor claw 51 is completely embedded in the inner convex anchor point 50 along a direction parallel to the fair-faced concrete slab 2, and the stainless steel sleeve 52 is embedded in the inner convex anchor point 50 along a direction perpendicular to the fair-faced concrete slab 2. One end of the stainless steel sleeve 52 is cross-welded to the steel bar anchor claw 51, and the other end extends to the outside of the inner convex anchor point 50. Based on this, the stainless steel sleeve 52 is integrally formed with the fair-faced concrete slab 2 through the steel bar anchor claw 51. This not only significantly increases the strength and stability of the inner convex anchor point 50 on the fair-faced concrete slab 2, but also makes the installation stability of the stainless steel sleeve 52 higher.

[0034] Specifically, such as Figure 1 - Figure 3 As shown, in order to further increase the strength of the inner convex anchor point 50 on the fair-faced concrete slab 2, in this embodiment, the inner convex anchor point 50 adopts a trapezoidal structure with a cross-section that gradually decreases from the side closer to the fair-faced concrete slab 2 to the side farther away from the fair-faced concrete slab 2. This can significantly improve the connection stability between the inner convex anchor point 50 and the fair-faced concrete slab 2. In addition, it should be noted that the stainless steel sleeve 52 is located at the center of the inner convex anchor point 50. This can make the stainless steel sleeve 52 bear the force evenly after the fair-faced concrete slab 2 is hung, thus improving the stability of the fair-faced concrete slab 2 after installation.

[0035] Specifically, the installation steps of the pre-anchor component 5 in step one are as follows: Rebar anchors 51 are embedded in the corresponding positions of the mold for pouring heavy-duty fair-faced concrete curtain wall panels, and stainless steel sleeves 52 are welded to the rebar anchors 51 according to the preset positions, so that the stainless steel sleeves 52 are fixed perpendicular to the fair-faced concrete panel 2. After the fair-faced concrete panel 2 is poured and formed, both the rebar anchors 51 and the stainless steel sleeves 52 are in the preset positions of the inner convex anchor points 50. It should also be noted that the stainless steel sleeves 52 have an internal threaded structure; therefore, one end of the stainless steel sleeves 52 needs to be sealed before pouring, and the sealing object should be removed after pouring to ensure that the use of the stainless steel sleeves 52 is not affected later.

[0036] Specifically, such as Figure 1 - Figure 4 As shown, in order to install the vertical galvanized steel rectangular tubes 4 and the horizontal galvanized steel rectangular tubes 9, in this embodiment, multiple vertical galvanized steel rectangular tubes 4 and two horizontal galvanized steel rectangular tubes 9 are provided on the back of the same fair-faced concrete slab 2. The two horizontal galvanized steel rectangular tubes 9 weld the top and bottom of the multiple vertical galvanized steel rectangular tubes 4 to form a frame structure that can suspend the fair-faced concrete slab 2. The number of vertical galvanized steel rectangular tubes 4 is the same as the number of columns of the inner protruding anchor points 50 on the fair-faced concrete slab 2 and their positions correspond. Galvanized angle steel 40 is welded on the vertical galvanized steel rectangular tubes 4. The galvanized angle steel 40 is fixedly connected to the stainless steel sleeve 52 by stainless steel screws 41, so that the frame structure formed by the vertical galvanized steel rectangular tubes 4 and the horizontal galvanized steel rectangular tubes 9 is fixed on the back of the fair-faced concrete slab 2.

[0037] Specifically, the method for installing the main keel rectangular tube 7 in step two is as follows: multiple hot-dip galvanized steel pipes 6 are pre-embedded at the preset position of the wall 1. The hot-dip galvanized steel pipes 6 are buried in the horizontal direction. The main keel rectangular tube 7 is vertically set on the surface of the wall 1, and the main keel rectangular tube 7 is fixed at the position of the hot-dip galvanized steel pipes 6 by bolts.

[0038] Specifically, such as Figure 1 - Figure 4 As shown, in order to achieve the installation of the fair-faced concrete slab 2 with the vertical galvanized steel rectangular tube 4, in this embodiment, the combined hanger 3 includes a load-bearing angle steel 30, a connector 31, and galvanized steel hanging ears 32. The load-bearing angle steel 30 is welded to the outside of the main keel rectangular tube 7. The connector 31 is set above the load-bearing angle steel 30 and is fixedly connected to the load-bearing angle steel 30 by bolts. The galvanized steel hanging ears 32 are fixed to the vertical galvanized steel rectangular tube 4 by a fixing bolt group 322. The galvanized steel hanging ears 32 are hung on the connector 31 to achieve the installation of the fair-faced concrete slab 2.

[0039] Specifically, such as Figure 4 As shown, in order to facilitate the hanging of the fair-faced concrete slab 2, in this embodiment, both the load-bearing angle steel 30 and the adapter 31 adopt an L-shaped structure. The vertical end of the load-bearing angle steel 30 is welded and fixed to the outside of the main keel rectangular tube 7. The horizontal ends of the load-bearing angle steel 30 and the adapter 31 are fixedly connected by bolts. The galvanized steel hanging ear 32 has an opening at the bottom of the end connected to the adapter 31. The opening below the galvanized steel hanging ear 32 engages with the vertical end of the adapter 31, forming a detachable hanging structure.

[0040] Specifically, such as Figure 4As shown, in order to allow for subsequent adjustments to the height and flatness of the fair-faced concrete slab 2, in this embodiment, a vertical adjusting bolt 320 is inserted above the galvanized steel hanging lug 32. The vertical adjusting bolt 320 is located in the area above the opening structure of the galvanized steel hanging lug 32, and one end of the vertical adjusting bolt 320 can extend into the opening structure on the galvanized steel hanging lug 32. A horizontal adjusting bolt 321 is screwed into the front end of the galvanized steel hanging lug 32, and one end of the horizontal adjusting bolt 321 extends into the opening structure on the galvanized steel hanging lug 32.

[0041] Specifically, the method for adjusting the height of the fair-faced concrete slab 2 using the combined hanging piece 3 in step four is as follows: After the fair-faced concrete slab 2 is installed, its height is measured using an instrument. When the height of the fair-faced concrete slab 2 is higher than the preset height and needs to be reduced, the vertical adjusting bolt 320 is rotated to reduce the length of the vertical adjusting bolt 320 extending into the opening structure on the galvanized steel hanging ear 32, thus lowering the overall height of the fair-faced concrete slab 2. When the height of the fair-faced concrete slab 2 is lower than the preset height and needs to be reduced, the vertical adjusting bolt 320 is rotated to increase the length of the vertical adjusting bolt 320 extending into the opening structure on the galvanized steel hanging ear 32, thus raising the overall height of the fair-faced concrete slab 2. It should also be noted that the horizontal adjusting bolt 321 is inserted into the opening structure of the galvanized steel hanging ear 32 to tighten the vertical end of the adapter 31, thereby facilitating the locking and fixing of the fair-faced concrete slab 2 after installation.

[0042] Specifically, such as Figure 2 and Figure 3 As shown, in order to improve the waterproofness of the gap between the two fair-faced concrete slabs 2, thickened portions 20 are provided at the top and bottom of the fair-faced concrete slabs 2. Among them, the outer side of the thickened portion 20 at the top of the fair-faced concrete slab 2 has an outer groove 21 opened in the horizontal direction, and the inner side of the thickened portion 20 at the bottom of the fair-faced concrete slab 2 has an inner groove 22 opened in the horizontal direction. After the two fair-faced concrete slabs 2 are installed, the connection position of the two fair-faced concrete slabs 2 forms a staggered stepped waterproof structure, thereby improving the waterproofness of the gap between the two fair-faced concrete slabs 2. In addition, the staggered structure formed at the connection position of the two fair-faced concrete slabs 2 is filled with sealant 8, which can further improve the waterproof effect of the gap between the fair-faced concrete slabs 2.

[0043] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A method for installing heavy-duty fair-faced concrete curtain wall panels based on a steel-framed backing, characterized in that, The specific steps are as follows: Step 1: Multiple pre-anchor components (5) for supporting the suspension are set on the back of the fair-faced concrete slab (2). Step 2: Install the main keel rectangular tube (7) on the exterior facade of the wall (1); Step 3: Connect the vertical galvanized steel rectangular tube (4) to the fair-faced concrete slab (2) using the pre-anchoring assembly (5); Step 4: Hang the vertical galvanized steel rectangular tube (4) on the main keel rectangular tube (7) using the combination hanger (3), and adjust the height of the fair-faced concrete slab (2) using the combination hanger (3).

2. The method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to claim 1, characterized in that, The pre-anchoring assembly (5) includes an inner convex anchor point (50), which is integrally formed on the back of the fair-faced concrete slab (2). The inner convex anchor point (50) is pre-embedded with a steel bar anchor claw (51) and a stainless steel sleeve (52). The steel bar anchor claw (51) is completely embedded in the inner convex anchor point (50) in a direction parallel to the fair-faced concrete slab (2). The stainless steel sleeve (52) is embedded in the inner convex anchor point (50) in a direction perpendicular to the fair-faced concrete slab (2). One end of the stainless steel sleeve (52) is cross-welded to the steel bar anchor claw (51), and the other end extends to the outside of the inner convex anchor point (50).

3. The method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to claim 2, characterized in that, The inner convex anchor point (50) adopts a stepped structure with a cross-section that gradually decreases from the side closer to the fair-faced concrete slab (2) to the side farther away from the fair-faced concrete slab (2).

4. The method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to claim 2, characterized in that, The specific steps for installing the pre-anchor component (5) in step one are as follows: embed steel anchor claws (51) at the corresponding positions of the mold for pouring heavy fair-faced concrete curtain wall panels, and weld stainless steel sleeves (52) to the steel anchor claws (51) at the preset positions, so that the stainless steel sleeves (52) are fixed perpendicular to the fair-faced concrete panel (2).

5. The method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to claim 2, characterized in that, Multiple vertical galvanized steel rectangular tubes (4) and two horizontal galvanized steel rectangular tubes (9) are provided on the back of the same fair-faced concrete slab (2). The two horizontal galvanized steel rectangular tubes (9) weld the top and bottom of the multiple vertical galvanized steel rectangular tubes (4) to form a frame structure that can suspend the fair-faced concrete slab (2). The number of vertical galvanized steel rectangular tubes (4) is the same as the number of columns of the inner convex anchor points (50) on the fair-faced concrete slab (2) and their positions correspond. Galvanized angle steel (40) is welded on the vertical galvanized steel rectangular tubes (4). The galvanized angle steel (40) is fixedly connected to the stainless steel sleeve (52) by stainless steel screws (41) so that the frame structure formed by the vertical galvanized steel rectangular tubes (4) and the horizontal galvanized steel rectangular tubes (9) is fixed on the back of the fair-faced concrete slab (2).

6. The method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to claim 5, characterized in that, The specific method for installing the main keel rectangular tube (7) in step two is as follows: multiple hot-dip galvanized steel pipes (6) are pre-embedded at a preset position in the wall (1). The hot-dip galvanized steel pipes (6) are buried in the horizontal direction. The main keel rectangular tube (7) is vertically set on the surface of the wall (1) and the main keel rectangular tube (7) is fixed at the position of the hot-dip galvanized steel pipe (6) by bolts.

7. The method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to claim 5, characterized in that, The combined hanging component (3) includes a load-bearing angle steel (30), a connecting component (31), and a galvanized steel hanging ear (32). The load-bearing angle steel (30) is welded to the outside of the main keel rectangular tube (7). The connecting component (31) is located above the load-bearing angle steel (30) and is fixedly connected to the load-bearing angle steel (30) by bolts. The galvanized steel hanging ear (32) is fixed to the vertical galvanized steel rectangular tube (4) by a fixing bolt group (322). The galvanized steel hanging ear (32) is hung on the connecting component (31).

8. The method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to claim 7, characterized in that, The load-bearing angle steel (30) and the adapter (31) both adopt an L-shaped structure. The vertical end of the load-bearing angle steel (30) is welded and fixed to the outside of the main keel rectangular tube (7). The horizontal ends of the load-bearing angle steel (30) and the adapter (31) are fixedly connected by bolts. The galvanized steel hanging ear (32) has an opening below the end connected to the adapter (31). The opening below the galvanized steel hanging ear (32) engages above the vertical end of the adapter (31) to form a detachable hanging structure.

9. The method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to claim 8, characterized in that, A vertical adjusting bolt (320) is inserted above the galvanized steel hanging ear (32). The vertical adjusting bolt (320) is located in the area above the opening structure of the galvanized steel hanging ear (32). One end of the vertical adjusting bolt (320) can extend into the opening structure on the galvanized steel hanging ear (32). A horizontal adjusting bolt (321) is screwed into the front end of the galvanized steel hanging ear (32). One end of the horizontal adjusting bolt (321) extends into the opening structure on the galvanized steel hanging ear (32).

10. The method for installing heavy-duty fair-faced concrete curtain wall panels based on a back-attached steel frame according to claim 9, characterized in that, The method for adjusting the height of the fair-faced concrete slab (2) by combining the hangers (3) in step four is as follows: After the fair-faced concrete slab (2) is installed, the height of the fair-faced concrete slab (2) is detected by an instrument. When the height of the fair-faced concrete slab (2) is higher than the preset height and needs to be reduced, the vertical adjustment bolt (320) is rotated so that the length of the vertical adjustment bolt (320) extending into the opening structure on the galvanized steel hanging ear (32) becomes smaller, and the overall height of the fair-faced concrete slab (2) decreases, thus reducing the height of the fair-faced concrete slab (2). When the height of the fair-faced concrete slab (2) is lower than the preset height and needs to be reduced, the vertical adjustment bolt (320) is rotated so that the length of the vertical adjustment bolt (320) extending into the opening structure on the galvanized steel hanging ear (32) becomes larger, and the overall height of the fair-faced concrete slab (2) increases.

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