Marble plate dry hanging anti-falling structure and construction technology thereof

Abstract

The application discloses a marble plate dry hanging anti-falling structure and a construction process thereof, and comprises a plurality of marble plates and a plurality of pre-assembly devices, wherein the pre-assembly device is composed of a keel structure treated by a hot-dip galvanizing process and two opposite embedded steel belts, the keel structure is composed of a plurality of vertical keels and a plurality of horizontal keels which are interwoven, and the radial section of the keel structure is arranged in a net shape, a stainless steel connecting piece is connected between each vertical keel and a plurality of horizontal keels, and the two ends of the vertical keel are connected with the embedded steel belt, and a reinforcing piece for cooperating with the stainless steel connecting piece to improve the connecting strength between the horizontal keel and the vertical keel is arranged between the vertical keel and the horizontal keel. The application solves the problems of the prior art, such as the low connecting strength between the horizontal keel and the vertical keel, the easy fracture and separation of the connecting part of the keel structure due to the on-site processing and preparation of the keel structure, and the rust-proof failure of the surface of the keel structure after the on-site processing and preparation of the keel structure.

Description

Technical Field

[0001] This invention relates to the field of marble dry-hanging construction technology, specifically to a marble slab dry-hanging anti-fall-off structure and its construction process. Background Technology

[0002] Current building construction, considering aesthetics, design, and practicality, often employs a marble-clad curtain wall structure on the exterior walls. This involves first installing pre-embedded steel strips on the building structure using chemical bolts. After the steel strips are installed, the keel structure is connected to them via welding or bolting. The keel structure consists of horizontal and vertical keels, currently manufactured using cold-galvanized angle steel cut and drilled on-site. The horizontal and vertical keels are then welded together. After assembling the keel structure, rust removal and welding slag removal processes are required, followed by painting for rust prevention.

[0003] The current dry-hanging process for marble cladding has many drawbacks. For example, the use of chemical anchors can cause localized damage to the original building structure. Direct welding of horizontal and vertical keels on-site poses quality and safety risks. Furthermore, on-site cutting, drilling, and welding of galvanized angle steel can damage the original galvanized protective layer of the horizontal and vertical keels, causing surface rust prevention to fail. After the vertical and horizontal keels are completed, rust removal and welding slag removal are performed on-site before painting for rust prevention. This design and construction process cannot guarantee a 30-50 year service life for the keel structure. The process carries high quality and safety risks, resulting in low connection strength between the horizontal and vertical keels. Over long-term use, the connection between the horizontal and vertical keels is prone to breakage and separation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a dry-hanging anti-fall-off structure for marble slabs and its construction process. This addresses the problems in existing technologies, such as the low connection strength between horizontal and vertical keels, the need for on-site fabrication of the keel structure leading to easy breakage and separation at the connection points, and the failure of rust prevention on the surface of the keel structure after on-site fabrication.

[0005] To achieve the above objectives, the present invention provides a marble slab dry-hanging anti-fall-off structure, comprising several marble slabs and several pre-assembly devices. The pre-assembly devices consist of a keel structure treated with hot-dip galvanizing and two opposing pre-embedded steel strips. The keel structure is composed of several vertical keels and several horizontal keels interwoven with each other, and the radial cross-section of the keel structure is arranged in a mesh pattern. Each pair of adjacent horizontal keels is gap-fitted and combined with adjacent vertical keels to form a grid area for placing marble slabs. Each vertical keel is connected to several horizontal keels by a stainless steel connector. Both ends of the vertical keel are respectively connected to the pre-embedded steel strips. A reinforcing member is provided between the vertical keel and the horizontal keel to cooperate with the stainless steel connector to improve the connection strength between the horizontal keel and the vertical keel.

[0006] The advantages of adopting the above technical solution are as follows: During the initial construction phase, several horizontal keels treated with hot-dip galvanizing are interwoven with several vertical keels treated with hot-dip galvanizing to form a keel structure. At this time, the radial cross-section of the keel structure is arranged in a mesh pattern. That is, on the construction site, the vertical and horizontal keels are directly connected using stainless steel connectors. After the keel structure is connected, several vertical keels in the keel structure are connected to the pre-embedded steel strips. Then, the operators only need to hoist the keel structure to the beam casting mold during the beam concrete pouring and connect it to the beam casting mold through the pre-embedded steel strips. This allows the concrete beam to be integrally connected with the pre-embedded steel strips when the beam is poured, thereby achieving the fixation of the keel structure on the building. Then, several marble slabs are installed one by one in the grid area, that is, the marble stone dry-hanging exterior wall is formed by the connection between the marble slabs and the horizontal keels. In the above technology, the pre-embedded steel strips and The integrated molding of the beam body improves the connection strength between the embedded steel strip and the beam body. Compared with the chemical bolts used in the existing technology, this technology can reduce local damage and corrosion to the beam or building body, thereby increasing its service life. In the above technology, the horizontal and vertical keels are processed by hot-dip galvanizing before production and shipment. This eliminates the need for on-site cutting, drilling, and welding of cold-galvanized angle steel to the vertical keels for the horizontal keels, thus shortening the construction period, eliminating on-site welding and rust prevention, reducing welding risks in construction quality, and preventing the marble slabs from falling off due to rust and breakage of the horizontal or vertical keels after long-term use. This reduces safety hazards and increases the service life of the dry-hanging marble slab exterior wall. The reinforcement components in the above technology are used to cooperate with stainless steel connectors to improve the connection strength between the vertical and horizontal keels, thereby increasing the service life of the vertical and horizontal keels.

[0007] The present invention further includes: a plurality of back bolt brackets arranged along the length of the horizontal keel; each back bolt bracket includes a base plate detachably connected to the horizontal keel; the base plate is bent toward the adjacent marble slab with a support plate; one end of the support plate is connected to an abutment plate for abutting against the inner wall of the marble slab; and a first stainless steel bolt is threaded between the abutment plate and the marble slab.

[0008] The advantages of adopting the above technical solution are: the back bolt bracket in the above technology is used to connect the marble slab and the horizontal keel through the first stainless steel bolt, which has high disassembly and assembly efficiency, improves construction efficiency and reduces construction period. At the same time, the back bolt bracket improves the connection strength between the marble slab and the horizontal keel. The use of the first stainless steel bolt improves the rust resistance between the marble slab and the horizontal keel, and avoids the phenomenon of the marble slab falling off due to rust caused by long-term use.

[0009] The invention further includes the following features: an anti-detachment plate is provided between every two adjacent abutment plates. The anti-detachment plate is opened along the length of the vertical keel and is arranged parallel to the vertical keel. Anti-detachment holes are opened at both ends of the anti-detachment plate and are located between the marble slab and the abutment plate. The first stainless steel bolt passes through the anti-detachment hole and is partially threaded to the anti-detachment hole. Several anti-detachment grooves are opened along the length of the horizontal keel on the marble slab. The several anti-detachment grooves are arranged in a "I" shape along the length of the vertical keel on the inner wall of the marble slab. Corresponding to each anti-detachment groove position, an anti-detachment protrusion is opened on the inner wall of the anti-detachment plate for interlocking with the anti-detachment groove. The shape of the anti-detachment protrusion is adapted to the anti-detachment groove.

[0010] The advantages of the above technical solution are as follows: When connecting the marble slab and the abutment plate with the first stainless steel bolt, the anti-detachment plate is first attached to the inner wall of the marble slab, and the anti-detachment groove and anti-detachment protrusion are matched. Then, the anti-detachment hole is aligned with the abutment plate, so that after the first stainless steel bolt passes through the abutment plate, it first engages with the threaded anti-detachment hole, and then the first stainless steel bolt is screwed in so that it engages with the threaded inner wall of the marble slab. This achieves the connection between the abutment plate and the marble slab, and the marble slab and the abutment plate achieve clamping and limiting of the anti-detachment plate. Furthermore, the connection between the horizontal keel and the marble slab is achieved through the back bolt bracket and the anti-detachment plate. The anti-detachment plate during surgery can distribute the impact force between the two back-bolt supports. When the marble slab is impacted, the impact force is transmitted to a single back-bolt support, while the anti-detachment plate can distribute part of the impact force to the other back-bolt support, thereby avoiding stress concentration and improving the marble slab's ability to withstand load impact. At the same time, the anti-detachment protrusions and anti-detachment grooves improve the marble slab's ability to withstand longitudinal load impact and enhance the stability of the marble slab in the grid area. The restriction imposed by the anti-detachment protrusions and anti-detachment grooves makes it difficult for the marble slab to slip or fall off longitudinally along the grid area, thus improving the service life of the marble slab.

[0011] The present invention further comprises: adjacent marble slabs are fitted with a gap and a fitting groove is formed; a plurality of anti-detachment corner brackets are provided on the horizontal keel along the length of the horizontal keel; each of the anti-detachment corner brackets is inserted into and fitted with its adjacent fitting groove; the top and bottom walls of the marble slabs are recessed with slots; each anti-detachment corner bracket is bent toward its adjacent slot with a limiting plate; each limiting plate is inserted into and fitted with its adjacent and corresponding slot; the radial cross section of the anti-detachment corner bracket and the two limiting plates is arranged in a "Y" shape.

[0012] The advantages of adopting the above technical solution are as follows: the anti-detachment corner bracket and the limiting plate are used to improve the connection strength between the anti-detachment corner bracket and the marble slab, further improving the connection strength between the horizontal keel and the marble slab. At the same time, the limiting plate improves the stability of the marble slab and prevents it from falling off. The anti-detachment corner bracket and the two limiting plates are combined in a "Y" shape in radial section to improve its load-bearing capacity, thereby sharing the impact on the marble slab. In addition, the anti-detachment corner bracket is easy for operators to disassemble and assemble, thereby improving disassembly and assembly efficiency and shortening the construction period.

[0013] The present invention further includes a wear-resistant pad wrapped around the limiting plate, the wear-resistant pad being made of an anti-slip material.

[0014] The advantage of adopting the above technical solution is that the limiting plate is wrapped with a wear-resistant pad made of anti-slip material, thereby improving the connection strength between the limiting plate and the slot and preventing the marble slab from shaking, slipping or detaching from the keel structure.

[0015] The invention further comprises: a support plate bent on the horizontal keel; a slot for partially accommodating each vertical keel is provided on the support plate corresponding to each vertical keel position; support brackets are provided on both side walls of each vertical keel; the support brackets are located below the support plate and their top walls abut against the bottom walls of the support plate; each support bracket has a first connecting hole; a second connecting hole is provided on the support plate corresponding to each first connecting hole; a second stainless steel bolt is threaded between each first connecting hole and its corresponding second connecting hole; the second stainless steel bolt is a stainless steel connector; and the support bracket is a reinforcing member.

[0016] The advantages of adopting the above technical solution are as follows: The first stainless steel bolt is used to connect the support bracket and the support plate, thereby improving the connection strength between the vertical keel and the horizontal keel, while improving the disassembly and assembly efficiency and shortening the construction period. It avoids the failure of the surface anti-rust of the vertical keel and the horizontal keel due to processing on the construction site. Furthermore, the use of the second stainless steel bolt improves the anti-rust ability between the vertical keel and the horizontal keel, preventing the vertical keel and the horizontal keel from breaking due to rust in the connection structure, thus preventing the marble slab from detaching.

[0017] The present invention further provides that: a shock-absorbing wedge block is provided between the inner wall of each marble slab and the outer wall of its adjacent support plate, the shock-absorbing wedge block being made of rubber and serving as a shock absorber.

[0018] The advantages of adopting the above technical solution are: the setting of the shock-absorbing wedge block in the above technology is to reduce the impact on the marble slab. The shock-absorbing wedge block buffers the impact on the marble slab onto the horizontal keel, thereby avoiding rigid impact on the back bolt support, which would cause damage to the back bolt support or reduce its service life.

[0019] The present invention further includes: the pre-embedded steel strip is provided with a steel keel for being placed into the casting mold before the external beam is prepared by concrete pouring, and the end of the steel keel is bent and formed with an anti-detachment end.

[0020] The advantages of adopting the above technical solution are: the setting of steel keel and anti-detachment end in the above technology is used to improve the connection strength between the beam and the pre-embedded steel strip after the concrete is poured to form the beam, thereby improving the overall strength of the dry-hanging marble slab exterior wall.

[0021] The present invention further includes a third stainless steel bolt connecting the vertical keel and the pre-embedded steel strip.

[0022] The advantages of adopting the above technical solution are: in the above technology, a third stainless steel bolt is used to connect the vertical keel and the pre-embedded steel strip, thereby improving the connection strength between the vertical keel and the pre-embedded steel strip, and at the same time avoiding the vertical keel and the pre-embedded steel strip from separating due to rust in the connection structure between the vertical keel and the pre-embedded steel strip, thus preventing the marble slab from detaching.

[0023] A marble dry-hanging anti-fall-off structure, characterized by the following process: S1. Several horizontal keels prepared by hot-dip galvanizing process are placed horizontally, and several vertical keels prepared by hot-dip galvanizing process are laid flat on several horizontal keels. Several slots on each horizontal keel correspond one-to-one with several vertical keels and are inserted and matched. Several support brackets on each vertical keel are connected to their corresponding and adjacent support plates by second stainless steel bolts. Several horizontal keels and several vertical keels are combined to form a keel structure with a radial cross section of mesh. S2. Based on the S1 process, install several anti-detachment angle brackets on the horizontal keel and several back bolt brackets on the horizontal keel. Each keel structure is equipped with two opposite pre-embedded steel strips. Connect the two ends of the vertical keel to the two pre-embedded steel strips respectively through the third stainless steel bolt. The keel structure and the pre-embedded steel strips are combined to form a pre-assembled device. S3. Based on the S2 process, hoist the pre-assembled device to the construction site and place the steel keel on the embedded steel strip into the beam casting mold, connect the steel keel to the beam casting mold, and cast the beam casting mold. S4. Based on the S3 process, after the beam is poured, the marble slab is moved into the grid area and the limiting plate on the anti-detachment corner bracket is inserted into the slot on the marble slab to achieve the initial positioning of the marble slab. S5. Based on the S4 process, an anti-detachment plate is attached to the back of the marble slab and several anti-detachment protrusions are aligned with several anti-detachment grooves and inserted into each other, so that each anti-detachment hole is aligned with its adjacent abutment plate. The marble slab and the abutment plate are connected by a first stainless steel bolt. The first stainless steel bolt passes through the corresponding anti-detachment hole and is connected with the local thread of the anti-detachment hole. S6. Based on the S5 process, install several marble slabs one by one into different grid areas, and install shock-absorbing wedges in the pre-assembled device with the marble slabs installed.

[0024] The advantages of adopting the above technical solution are: through the above construction process, the connection strength between the horizontal and vertical keels is improved. At the same time, the horizontal and vertical keels are processed by hot-dip galvanizing before production and shipment. Therefore, it is not necessary to cut, drill holes and weld the horizontal keels to the vertical keels on site using cold-galvanized angle steel. This shortens the construction period, eliminates on-site welding and rust prevention, reduces welding risks to construction quality, and avoids the problem of marble slabs falling off due to rust and breakage of the horizontal or vertical keels after long-term use. This reduces safety hazards and increases the service life of dry-hanging marble slabs on exterior walls. Attached Figure Description

[0025] Figure 1 This is a three-dimensional view of the present invention; Figure 2 for Figure 1 Partial 3D view; Figure 3 This is a simplified cross-sectional view of the invention after installation; Figure 4 This is a three-dimensional view of the anti-detachment plate in this invention; Figure 5 This is a simplified view of the anti-detachment plate and the marble slab in the present invention. Detailed Implementation

[0026] This invention provides a dry-hanging anti-fall-off structure for marble slabs 1, comprising several marble slabs 1 and several pre-assembly devices. The pre-assembly devices consist of a keel structure treated with hot-dip galvanizing and two opposing pre-embedded steel strips 2. The keel structure is composed of several vertical keels 3 and several horizontal keels 4 interwoven, with the radial cross-section of the keel structure arranged in a mesh pattern. Each pair of adjacent horizontal keels 4 are spaced apart and combined with adjacent vertical keels 3 to form a grid area 21 for placing the marble slabs 1. Each vertical keel 3 is connected to several horizontal keels 4 by a stainless steel connector. Both ends of each vertical keel 3 are connected to the pre-embedded steel strips 2. A connection is provided between the vertical keels 3 and the horizontal keels 4 for engaging with the stainless steel connector to improve the connection between the horizontal keels 4 and the vertical keels 3. The reinforcement members connecting the horizontal keel 4 include several back bolt brackets arranged along its length. Each back bolt bracket includes a base plate 41 detachably connected to the horizontal keel 4. The base plate 41 is bent towards the adjacent marble slab 1 with a support plate 42. One end of the support plate 42 is connected to an abutment plate 43 for abutting against the inner wall of the marble slab 1. A first stainless steel bolt 44 is threaded between the abutment plate 43 and the marble slab 1. An anti-detachment plate 45 is provided between every two adjacent abutment plates 43. The anti-detachment plate 45 is opened along the length of the vertical keel 3 and is parallel to the vertical keel 3. Anti-detachment holes 46 are opened at both ends of the anti-detachment plate 45, and the anti-detachment holes 46 are located between the marble slab 1 and the abutment plate 43. The first stainless steel bolt 44 passes through the anti-loosening hole 46 and is partially threaded into the anti-loosening hole 46. Several anti-loosening grooves 11 are formed along the length of the horizontal keel 4 on the marble slab 1. These anti-loosening grooves 11 are arranged in a straight line along the length of the vertical keel 3 on the inner wall of the marble slab 1. Corresponding to each anti-loosening groove 11, an anti-loosening protrusion 451 is formed on the inner wall of the anti-loosening plate 45 for interlocking with the anti-loosening groove 11. The anti-loosening protrusion 451 is shaped to fit the anti-loosening groove 11. Adjacent marble slabs 1 are fitted with a clearance and form a mating groove 13. Several anti-loosening angle brackets 5 are formed along the length of the horizontal keel 4. Each of the anti-loosening angle brackets 5 is interlocked with its adjacent mating groove 13. The marble slab 1 has recessed slots 12 on both its top and bottom walls. Each anti-detachment bracket 5 is bent towards its adjacent slot 12 with a limiting plate 51. Each limiting plate 51 is inserted into its adjacent and corresponding slot 12. The anti-detachment bracket 5 and the two limiting plates 51 are arranged in a "Y" shape in radial cross-section. The limiting plate 51 is covered with a wear-resistant pad made of anti-slip material. A support plate 6 is bent on the horizontal keel 4. The support plate 6 has a slot 61 for partially accommodating each vertical keel 3. Support brackets 31 are provided on both sides of the vertical keel 3. The support brackets 31 are located below the support plate 6, and their top walls abut against the bottom walls of the support plate 6.Each of the supporting brackets 31 has a first connecting hole 311 through it. A second connecting hole 62 is provided on the supporting plate 6 corresponding to each first connecting hole 311. Each first connecting hole 311 is threadedly connected to its corresponding second connecting hole 62 by a second stainless steel bolt 32. The second stainless steel bolt 32 is a stainless steel connector. The supporting bracket 31 is a reinforcing member. A shock-absorbing wedge 7 is provided between the inner wall of each marble slab 1 and the outer wall of its adjacent supporting plate 6. The shock-absorbing wedge 7 is made of rubber and is a shock absorber. The embedded steel strip 2 is provided with a reinforcing steel keel 22 for insertion into the casting mold before the external beam is prepared by concrete pouring. The ends of the reinforcing steel keel 22 are bent to form anti-detachment ends 23. A third stainless steel bolt 33 connects the vertical keel 3 to the embedded steel strip 2.

[0027] A construction process for a dry-hanging anti-fall-off structure for marble slabs includes the following steps: S1. Several horizontal keels 4 prepared by hot-dip galvanizing process are placed horizontally, and several vertical keels 3 prepared by hot-dip galvanizing process are laid flat on several horizontal keels 4. Several slots 61 on each horizontal keel 4 are matched with several vertical keels 3 one by one and inserted into each other. Several support brackets 31 on each vertical keel 3 are connected to their corresponding and adjacent support plates 6 by second stainless steel bolts 32. Several horizontal keels 4 and several vertical keels 3 are combined to form a keel structure with a radial cross section of mesh. S2. Based on the process of S1, install several anti-detachment angle brackets 5 on the horizontal keel 4, install several back bolt brackets on the horizontal keel 4, each keel structure is equipped with two opposite pre-embedded steel strips 2, and connect the two ends of the vertical keel 3 to the two pre-embedded steel strips 2 respectively through the third stainless steel bolts 33. The keel structure and the pre-embedded steel strips 2 are combined to form a pre-assembled device. S3. Based on the S2 process, hoist the pre-assembled device to the construction site and place the steel keel 22 on the embedded steel strip 2 into the beam casting mold, connect the steel keel 22 to the beam casting mold, and cast the beam casting mold. S4. Based on the S3 process, after the beam is poured, the marble slab 1 is moved to the grid area 21 and the limiting plate 51 on the anti-detachment corner bracket 5 is inserted into the slot 12 on the marble slab 1 to achieve the initial positioning of the marble slab 1. S5. Based on the process of S4, an anti-detachment plate 45 is attached to the back of the marble slab 1 and a number of anti-detachment protrusions 451 are aligned with a number of anti-detachment grooves 11 and inserted into each other, so that each anti-detachment hole 46 is aligned with its adjacent abutment plate 43. The marble slab 1 and the abutment plate 43 are connected by a first stainless steel bolt 44. The first stainless steel bolt 44 passes through the corresponding anti-detachment hole 46 and is partially threaded to the anti-detachment hole 46. S6. Based on the S5 process, install several marble slabs 1 one by one into different grid areas 21, and install shock-absorbing wedge blocks 7 in the pre-assembled device with the marble slabs 1 installed.

[0028] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A marble slab dry-hanging anti-fall-off structure, comprising a plurality of marble slabs and a plurality of pre-assembled devices, characterized in that: The pre-assembled device consists of a keel structure treated with hot-dip galvanizing and two opposing embedded steel strips. The keel structure is composed of several vertical keels and several horizontal keels interwoven with each other, and the radial cross-section of the keel structure is arranged in a mesh pattern. Each pair of adjacent horizontal keels is gap-fitted and, together with adjacent vertical keels, forms a grid area for placing marble slabs. Each vertical keel is connected to several horizontal keels by stainless steel connectors. Both ends of each vertical keel are connected to the embedded steel strips. Reinforcing members are provided between the vertical and horizontal keels to cooperate with the stainless steel connectors and improve the connection strength between the horizontal and vertical keels. Several back-bolt supports are arranged along the length of each horizontal keel. Each back-bolt support includes a base plate detachably connected to the horizontal keel, and the base plate is bent towards the adjacent marble slab with a support plate. One end of the support plate is connected to an abutment plate for abutting against the inner wall of the marble slab. A first stainless steel bolt is threaded between the abutment plate and the marble slab. An anti-detachment plate is provided between every two adjacent abutment plates. The anti-detachment plate is opened along the length of the vertical keel and is arranged parallel to the vertical keel. Anti-detachment holes are opened at both ends of the anti-detachment plate. The anti-detachment holes are located between the marble slab and the abutment plate. The first stainless steel bolt passes through the anti-detachment hole and is partially threaded to the anti-detachment hole. Several anti-detachment grooves are opened along the length of the horizontal keel on the marble slab. The several anti-detachment grooves are arranged in a "I" shape along the length of the vertical keel on the inner wall of the marble slab. Corresponding to each anti-detachment groove position, an anti-detachment protrusion is opened on the inner wall of the anti-detachment plate for inserting and cooperating with the anti-detachment groove. The shape of the anti-detachment protrusion is adapted to the anti-detachment groove.

2. The anti-fall-off structure for dry-hanging marble slabs according to claim 1, characterized in that: The adjacent marble slabs are fitted with a gap and form a fitting groove. Several anti-detachment corner brackets are provided on the horizontal keel along the length of the horizontal keel. Each of the anti-detachment corner brackets is inserted into its adjacent fitting groove. The top and bottom walls of the marble slabs are recessed with slots. Each anti-detachment corner bracket is bent toward its adjacent slot with a limiting plate. Each limiting plate is inserted into its adjacent and corresponding slot. The radial cross section of the anti-detachment corner bracket and the two limiting plates is arranged in a "Y" shape.

3. The anti-fall-off structure for dry-hanging marble slabs according to claim 2, characterized in that: The limiting plate is covered with a wear-resistant pad, which is made of a non-slip material.

4. The anti-fall-off structure for dry-hanging marble slabs according to claim 1, characterized in that: A support plate is bent on the horizontal keel. The support plate has a slot for partially accommodating each vertical keel. Support brackets are provided on both sides of the vertical keel. The support brackets are located below the support plate and their top walls abut against the bottom walls of the support plate. Each support bracket has a first connecting hole. A second connecting hole is provided on the support plate at the position of each first connecting hole. A second stainless steel bolt is threaded between each first connecting hole and its corresponding second connecting hole. The second stainless steel bolt is a stainless steel connector, and the support bracket is a reinforcing member.

5. The anti-fall-off structure for dry-hanging marble slabs according to claim 4, characterized in that: Each marble slab has a shock-absorbing wedge block between its inner wall and the outer wall of its adjacent support plate. The shock-absorbing wedge block is made of rubber and serves as a shock absorber.

6. The anti-fall-off structure for dry-hanging marble slabs according to claim 1, characterized in that: The pre-embedded steel strip is provided with a steel keel for being placed in the casting mold before the external beam is prepared by concrete pouring. The end of the steel keel is bent and formed with an anti-detachment end.

7. The anti-fall-off structure for dry-hanging marble slabs according to claim 1, characterized in that: A third stainless steel bolt connects the vertical keel to the pre-embedded steel strip.

8. A construction process for a marble slab dry-hanging anti-fall-off structure, based on the marble dry-hanging anti-fall-off structure according to any one of claims 1 to 7, characterized in that: The process includes the following steps: S1. Several horizontal keels prepared by hot-dip galvanizing process are placed horizontally, and several vertical keels prepared by hot-dip galvanizing process are laid flat on several horizontal keels. Several slots on each horizontal keel correspond one-to-one with several vertical keels and are inserted and matched. Several support brackets on each vertical keel are connected to their corresponding and adjacent support plates by second stainless steel bolts. Several horizontal keels and several vertical keels are combined to form a keel structure with a radial cross section of mesh. S2. Based on the S1 process, install several anti-detachment angle brackets on the horizontal keel and several back bolt brackets on the horizontal keel. Each keel structure is equipped with two opposite pre-embedded steel strips. Connect the two ends of the vertical keel to the two pre-embedded steel strips respectively through the third stainless steel bolt. The keel structure and the pre-embedded steel strips are combined to form a pre-assembled device. S3. Based on the S2 process, hoist the pre-assembled device to the construction site and place the steel keel on the embedded steel strip into the beam casting mold, connect the steel keel to the beam casting mold, and cast the beam casting mold. S4. Based on the S3 process, after the beam is poured, the marble slab is moved into the grid area and the limiting plate on the anti-detachment corner bracket is inserted into the slot on the marble slab to achieve the initial positioning of the marble slab. S5. Based on the S4 process, an anti-detachment plate is attached to the back of the marble slab and several anti-detachment protrusions are aligned with several anti-detachment grooves and inserted into each other, so that each anti-detachment hole is aligned with its adjacent abutment plate. The marble slab and the abutment plate are connected by a first stainless steel bolt. The first stainless steel bolt passes through the corresponding anti-detachment hole and is connected with the local thread of the anti-detachment hole. S6. Based on the S5 process, install several marble slabs one by one into different grid areas, and install shock-absorbing wedges in the pre-assembled device with the marble slabs installed.

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