A fair-faced concrete slab bottom mounting structure

Abstract

The application discloses a fair-faced concrete slab bottom mounting structure and relates to the field of fair-faced concrete slab mounting. The fair-faced concrete slab bottom mounting structure comprises a hot-dip galvanized steel plate and a bottom limiting assembly. The hot-dip galvanized steel plate is laid on the bottom of the fair-faced concrete slab along the length direction of the fair-faced concrete slab. The bottom limiting assembly is provided with two groups, which are respectively arranged above the hot-dip galvanized steel plate and are respectively located on the two sides of the fair-faced concrete slab, and is used for limiting the bottom of the fair-faced concrete slab. The bottom limiting assembly comprises a galvanized angle steel arranged above the hot-dip galvanized steel plate. A clamping plate is arranged between the galvanized angle steel and the fair-faced concrete slab. The clamping plate can be horizontally moved and adjusted along the direction perpendicular to the galvanized angle steel. The fair-faced concrete slab bottom mounting structure can be adapted to fair-faced concrete slabs with different thicknesses. When the fair-faced concrete slab bottom mounting structure is operated, the accurate fine adjustment of the position of the clamping plate can be realized through the cooperation of a screw rod and a screw sleeve, and the galvanized angle steel can be integrally and quickly moved through a coarse adjustment guide groove and a locking assembly, so that the flexibility and the application range of on-site installation are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of fair-faced concrete slab technology, and in particular to a bottom mounting structure for fair-faced concrete slabs. Background Technology

[0002] As is well known, fair-faced concrete slabs are increasingly widely used in building interior and exterior decoration and curtain wall projects due to their smooth surface, uniform color, and natural texture. To ensure flatness and long-term stability after installation, a special installation structure is usually required at the bottom of the fair-faced concrete slab for support and restraint.

[0003] The common practice is to lay a continuous steel base plate under the slab and clamp it on both sides with angle steel or similar components. However, in actual engineering, these existing installation structures have revealed many problems. On the one hand, most structures have the bottom of the slab in direct, tight contact with the steel base plate, lacking vertical buffer space. When the building floor or ground is disturbed by people walking or equipment vibration, the fair-faced concrete slab is prone to slight jumping or vibration, and the bottom edge of the slab is directly subjected to hard compression. Over time, this can lead to chipping, cracking, or even breakage. On the other hand, fair-faced concrete slabs come in different thicknesses, and even within the same project, there may be slight variations in slab thickness due to batch differences from different manufacturers. The limiting components on both sides in existing structures are usually fixed and non-adjustable, or can only be compensated for by rough methods such as using thin shims. This results in low installation accuracy, cumbersome operation, and difficulty in quickly and accurately adapting to changes in slab thickness. In addition, some adjustable structures lack effective guiding and locking designs when adjusting the position of the clamping plates. The clamping plates are prone to deviation or insecure locking, leading to uneven clamping force and poor stress on the sides of the slab. In some projects, the bottom mounting structure has insufficient overall resistance to lateral forces, and the sides of the bottom plate are prone to deformation when the plate is subjected to wind pressure or slight impact.

[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 a bottom installation structure for fair-faced concrete slabs. This structure can adapt to fair-faced concrete slabs of different thicknesses. During operation, the position of the clamping plate can be precisely adjusted by the cooperation of screws and screw sleeves. At the same time, the galvanized angle steel can be moved quickly as a whole by using coarse adjustment guide grooves and locking components, which greatly improves the flexibility and applicability of on-site installation. In addition, during the adjustment process, the clamping plate moves smoothly and will not deviate by means of the double guidance cooperation of sliding grooves and limiting guide blocks, and limiting sliding sleeves and limiting guide rods, which ensures the fitting accuracy between the clamping plate and the side of the slab.

[0006] To achieve the above objectives, the present invention provides a bottom mounting structure for fair-faced concrete slabs, comprising a hot-dip galvanized steel sheet and a bottom limiting component. The hot-dip galvanized steel sheet is laid along the length of the fair-faced concrete slab at its bottom. Two sets of the bottom limiting component are respectively installed above the hot-dip galvanized steel sheet and located on both sides of the fair-faced concrete slab, for limiting the bottom of the fair-faced concrete slab. The bottom limiting component includes a galvanized angle steel installed above the hot-dip galvanized steel sheet. The galvanized angle steel is located on the side of the fair-faced concrete slab and is parallel to the fair-faced concrete slab. A clamping plate is provided between the galvanized angle steel and the fair-faced concrete slab, and the clamping plate can be horizontally adjusted in a direction perpendicular to the galvanized angle steel.

[0007] In one embodiment of the present invention, a screw is rotatably mounted at the center of the clamping plate via a bearing. The galvanized angle steel adopts an L-shaped structure, and a threaded sleeve is embedded at the center of the galvanized angle steel. The threaded sleeve is adapted to and sleeved with the screw. One end of the screw passes through the threaded sleeve and extends to the outside of the threaded sleeve. A fine-tuning wheel is installed at the end of the screw extending to the outside of the threaded sleeve. Based on this, when it is necessary to control the movement and adjustment of the clamping plate, it is only necessary to rotate the screw. With the cooperation of the threaded sleeve, the screw pushes the clamping plate to move horizontally in a direction perpendicular to the galvanized angle steel until the bottom of the fair-faced concrete slab is pressed tightly, thus completing the adjustment.

[0008] In one embodiment of the present invention, the upper surface of the slide groove is provided with a slide groove along the moving direction of the clamping plate, and a limiting guide block is provided at the bottom of the clamping plate corresponding to the position of the slide groove. The limiting guide block is slidably engaged in the slide groove. Based on this, when the clamping plate moves, the clamping plate will not deviate under the limiting action of the limiting guide block and the slide groove, so its stability is higher.

[0009] In one embodiment of the present invention, the vertical end of the galvanized angle steel is provided with a plurality of limiting sleeves arranged in a rectangular array, and the clamping plate is provided with a plurality of limiting guide rods on the side near the galvanized angle steel. The limiting guide rods correspond one-to-one with the limiting sleeves, and the limiting guide rods slide through the limiting guide rods. Based on this, when the clamping plate moves, the movement stability of the clamping plate is higher through the cooperation of the limiting guide block and the sliding groove, as well as the cooperation of the limiting sleeves and the limiting guide rods.

[0010] In one embodiment of the present invention, a coarse adjustment guide groove is provided above the horizontal end of the galvanized angle steel. The coarse adjustment guide groove is provided along the moving direction of the clamping plate. A stud is installed on the top of the hot-dip galvanized steel plate corresponding to the position of the coarse adjustment guide groove. After the stud passes through the coarse adjustment guide groove, the galvanized angle steel is fixed by a locking assembly. Based on this, when it is necessary to adjust the position of the clamping plate over a large range, the locking assembly can be loosened first, and then the position of the galvanized angle steel can be moved to adjust the position of the clamping plate over a large range. Then, the locking assembly can be tightened to fix the galvanized angle steel. The operation is convenient and quick.

[0011] In one embodiment of the present invention, the upper surface of the galvanized angle steel is provided with positioning teeth on both sides of the coarse adjustment guide groove. The locking assembly includes a locking nut and a pressure plate provided at the bottom of the locking nut. The bottom of the pressure plate is provided with locking teeth that can be adapted to the positioning teeth. The locking teeth can engage with the positioning teeth. Based on this, when the locking nut is tightened, the locking teeth at the bottom of the pressure plate engage with the positioning teeth, and the galvanized angle steel is fixed.

[0012] In one embodiment of the present invention, triangular plates are provided on the inner sides of both ends of the galvanized angle steel, and a protective cover is engaged above the triangular plates. The protective cover covers the inner side of the galvanized angle steel. Based on this, the triangular plates can significantly improve the strength of the galvanized angle steel, while the protective cover can protect the parts inside the galvanized angle steel.

[0013] In one embodiment of the present invention, an impedance baffle is further included. The impedance baffle is located on both sides of the hot-dip galvanized steel sheet. The impedance baffle adopts an inclined structure. The impedance baffle is fixedly connected to the hot-dip galvanized steel sheet by a support member. Based on this, the support member can block the load on both sides of the hot-dip galvanized steel sheet, which can significantly improve the bottom resistance of the fair-faced concrete slab.

[0014] In one embodiment of the present invention, the support member includes a diagonal brace, an upper fixing plate, and a lower fixing plate, wherein the upper fixing plate is welded to the top of the diagonal brace and fixedly connected to the impedance baffle by bolts, and the lower fixing plate is welded to the bottom of the diagonal brace and fixedly connected to the upper surface of the hot-dip galvanized steel plate by bolts.

[0015] In one embodiment of the present invention, a pad is embedded in the side of the clamping plate close to the fair-faced concrete slab.

[0016] Compared with existing technologies, the bottom installation structure of the fair-faced concrete slab according to the present invention provides vertical movement space for the slab by reserving a gap between the bottom of the fair-faced concrete slab and the hot-dip galvanized steel plate. This effectively buffers vertical vibrations and prevents the bottom of the slab from being crushed and damaged due to direct contact with rigid supports. Simultaneously, the clamping plates in the two sets of bottom limiting components can be horizontally adjusted along a direction perpendicular to the galvanized angle steel, allowing the structure to adapt to fair-faced concrete slabs of different thicknesses. During operation, precise fine-tuning of the clamping plate position can be achieved through the cooperation of screws and sleeves, while the galvanized angle steel can be quickly moved as a whole using coarse adjustment guide grooves and locking components. This significantly improves the flexibility and applicability of on-site installation. Furthermore, during adjustment, the clamping plates move smoothly and without deviation thanks to the dual guiding cooperation of the sliding groove and limiting guide block, and the limiting sliding sleeve and limiting guide rod, ensuring the fitting accuracy between the clamping plates and the side of the slab.

[0017] Finally, the device is equipped with a locking component, which engages with the positioning teeth to secure the parts, making it difficult to loosen and ensuring high reliability over long-term use. In addition, the triangular plate on the inner side of the galvanized angle steel enhances the structural strength, the protective cover provides effective protection for the internal parts, and the resistance baffles on both sides of the hot-dip galvanized steel plate are fixed by the support members, which significantly enhances the resistance and load-bearing capacity of the bottom of the fair-faced concrete slab. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a bottom mounting structure for a fair-faced concrete slab according to an embodiment of the present invention.

[0019] Figure 2 This is a left view of a bottom mounting structure for a fair-faced concrete slab according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the bottom limiting component installation structure in a bottom installation structure for a fair-faced concrete slab according to an embodiment of the present invention;

[0021] Figure 4 This is a top view of a bottom mounting structure for a fair-faced concrete slab according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the installation of the bottom limiting component adjustment structure in a bottom mounting structure for fair-faced concrete slab according to an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of a locking component in a bottom mounting structure for a fair-faced concrete slab according to an embodiment of the present invention.

[0024] Reference numerals: 1. Hot-dip galvanized steel sheet; 10. Slide groove; 2. Bottom limiting component; 20. Galvanized angle steel; 200. Coarse adjustment guide groove; 201. Positioning toothed part; 202. Limiting slide sleeve; 203. Limiting guide rod; 21. Protective cover; 23. Clamping plate; 230. Pad plate; 231. Limiting guide block; 24. Screw; 240. Fine adjustment wheel; 241. Screw sleeve; 25. Screw stud; 26. Triangular plate; 27. Locking component; 270. Locking nut; 271. Pressure plate; 272. Locking toothed part; 3. Impedance baffle; 4. Support component; 40. Diagonal brace; 41. Upper fixing plate; 42. Lower fixing plate. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 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.

[0026] 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.

[0027] like Figure 1 - Figure 6 As shown, a bottom mounting structure for fair-faced concrete slabs according to a preferred embodiment of the present invention includes a hot-dip galvanized steel plate 1 and a bottom limiting component 2. The hot-dip galvanized steel plate 1 is laid along the length of the fair-faced concrete slab at the bottom. The bottom limiting component 2 is provided in two sets, respectively installed above the hot-dip galvanized steel plate 1 and located on both sides of the fair-faced concrete slab, for limiting the bottom of the fair-faced concrete slab. The bottom limiting component 2 includes a galvanized angle steel 20 installed above the hot-dip galvanized steel plate 1. The galvanized angle steel 20 is located on the side of the fair-faced concrete slab and is parallel to the fair-faced concrete slab. A clamping plate 23 is provided between the galvanized angle steel 20 and the fair-faced concrete slab. The clamping plate 23 can be horizontally adjusted in a direction perpendicular to the galvanized angle steel 20.

[0028] Working principle: The device is installed at the bottom of the fair-faced concrete slab. Two sets of bottom limiting components 2 are located on both sides of the bottom of the fair-faced concrete slab. After installation, the clamps 23 between the two sets of bottom limiting components 2 and the fair-faced concrete slab clamp the sides of the fair-faced concrete slab, providing top pressure support to both sides of the bottom of the fair-faced concrete slab. A gap is left between the bottom of the fair-faced concrete slab and the hot-dip galvanized steel plate 1. This gap provides vertical movement space for the fair-faced concrete slab, preventing it from being squeezed and damaged due to vertical vibration. Furthermore, the clamps 23 in the device can be adjusted horizontally along the direction perpendicular to the galvanized angle steel 20. Therefore, when installing fair-faced concrete slabs of different thicknesses, the position of the clamps 23 can be adjusted according to the actual thickness of the fair-faced concrete slab, thereby improving the applicability of the device.

[0029] Specifically, such as Figure 3 - Figure 5 As shown, in order to enable the clamping plate 23 to be horizontally moved and adjusted in a direction perpendicular to the galvanized angle steel 20, in this embodiment, a screw 24 is rotatably mounted at the center position of the clamping plate 23 via a bearing. The galvanized angle steel 20 adopts an L-shaped structure, and a screw sleeve 241 is embedded at the center position of the galvanized angle steel 20. The screw sleeve 241 is adapted to and sleeved with the screw 24. One end of the screw 24 passes through the screw sleeve 241 and extends to the outside of the screw sleeve 241. A fine-tuning wheel 240 is installed at the end of the screw 24 that extends to the outside of the screw sleeve 241. Based on this, when it is necessary to control the movement and adjustment position of the clamping plate 23, it is only necessary to rotate the screw 24 to make the screw 24 rotate. With the cooperation of the screw sleeve 241, the screw 24 pushes the clamping plate 23 to move horizontally in a direction perpendicular to the galvanized angle steel 20 until the bottom of the fair-faced concrete slab is pressed tightly, thus completing the adjustment.

[0030] Specifically, such as Figure 3 - Figure 5 As shown, in order to improve the stability when adjusting the position of the clamping plate 23, in this embodiment, the upper surface of the slide groove 10 is provided with a slide groove 10 along the moving direction of the clamping plate 23, and the bottom of the clamping plate 23 is provided with a limiting guide block 231 corresponding to the position of the slide groove 10. The limiting guide block 231 is slidably engaged in the slide groove 10. Based on this, when the clamping plate 23 moves, under the limiting action of the limiting guide block 231 and the slide groove 10, the clamping plate 23 will not deviate, so its stability is higher.

[0031] Specifically, such as Figure 3 - Figure 5As shown, in order to further improve the stability when adjusting the position of the clamping plate 23, in this embodiment, the vertical end of the galvanized angle steel 20 is provided with a rectangular array of multiple limiting sleeves 202, and the side of the clamping plate 23 near the galvanized angle steel 20 is provided with multiple limiting guide rods 203. The limiting guide rods 203 correspond one-to-one with the limiting sleeves 202, and the limiting guide rods 203 slide through the limiting guide rods 203. Based on this, when the clamping plate 23 moves, the movement stability of the clamping plate 23 is higher due to the cooperation of the limiting guide block 231 and the slide groove 10, as well as the cooperation of the limiting sleeves 202 and the limiting guide rods 203.

[0032] Specifically, such as Figure 3 and Figure 5 As shown, in order to further improve the applicability of the device, in this embodiment, a coarse adjustment guide groove 200 is provided above the horizontal end of the galvanized angle steel 20. The coarse adjustment guide groove 200 is provided along the moving direction of the clamping plate 23. A stud 25 is installed on the top of the hot-dip galvanized steel plate 1 at the position corresponding to the coarse adjustment guide groove 200. After the stud 25 passes through the coarse adjustment guide groove 200, the galvanized angle steel 20 is fixed by the locking assembly 27. Based on this, when it is necessary to adjust the position of the clamping plate 23 over a large range, the locking assembly 27 can be loosened first, and then the position of the galvanized angle steel 20 can be moved to adjust the position of the clamping plate 23 over a large range. Then, the locking assembly 27 can be tightened to fix the galvanized angle steel 20. The operation is convenient and quick.

[0033] Specifically, such as Figure 3 and Figure 5 As shown, in order to make the galvanized angle steel 20 more stable after fixing, in this embodiment, the upper surface of the galvanized angle steel 20 is provided with positioning tooth-like parts 201 on both sides of the coarse adjustment guide groove 200. The locking assembly 27 includes a locking nut 270 and a pressure plate 271 provided at the bottom of the locking nut 270. The bottom of the pressure plate 271 is provided with locking teeth 272 that can be adapted to the positioning tooth-like parts 201. The locking teeth 272 can engage with the positioning tooth-like parts 201. Based on this, when the locking nut 270 is tightened, the locking teeth 272 at the bottom of the pressure plate 271 engages with the positioning tooth-like parts 201, and the galvanized angle steel 20 is fixed at this time.

[0034] Specifically, such as Figure 5 As shown, in order to prevent damage to the inner parts of the galvanized angle steel 20 and to improve the strength of the galvanized angle steel 20, in this embodiment, triangular plates 26 are provided on the inner sides of both ends of the galvanized angle steel 20, and a protective cover 21 is engaged above the triangular plates 26. The protective cover 21 covers the inner side of the galvanized angle steel 20. Based on this, the triangular plates 26 can significantly improve the strength of the galvanized angle steel 20, while the protective cover 21 can protect the inner parts of the galvanized angle steel 20.

[0035] Specifically, such as Figure 1 - Figure 3As shown, in order to improve the resistance capacity of the bottom of the fair-faced concrete slab, this embodiment also includes an impedance baffle 3. The impedance baffle 3 is located on both sides of the hot-dip galvanized steel plate 1. The impedance baffle 3 adopts an inclined structure. The impedance baffle 3 and the hot-dip galvanized steel plate 1 are fixedly connected by a support member 4. Based on this, the support member 4 can block the force on both sides of the hot-dip galvanized steel plate 1, which can significantly improve the resistance capacity of the bottom of the fair-faced concrete slab.

[0036] Specifically, such as Figure 1 - Figure 3 As shown, in this embodiment, the support member 4 includes a diagonal brace 40, an upper fixing plate 41, and a lower fixing plate 42. The upper fixing plate 41 is welded to the top of the diagonal brace 40 and is fixedly connected to the impedance baffle 3 by bolts. The lower fixing plate 42 is welded to the bottom of the diagonal brace 40 and is fixedly connected to the upper surface of the hot-dip galvanized steel plate 1 by bolts.

[0037] Specifically, such as Figure 1 - Figure 3 As shown, in order to avoid damage to the fair-faced concrete slab when the clamping plate 23 presses against it, in this embodiment, a pad 230 is embedded and installed on the side of the clamping plate 23 that is close to the fair-faced concrete slab.

[0038] 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 bottom mounting structure for a fair-faced concrete slab, characterized in that, It includes: Hot-dip galvanized steel sheet (1) is laid at the bottom of the fair-faced concrete slab along the length of the fair-faced concrete slab. The bottom limiting component (2) is provided in two sets, which are respectively installed above the hot-dip galvanized steel plate (1) and located on both sides of the fair-faced concrete slab, for limiting the bottom of the fair-faced concrete slab. The bottom limiting component (2) includes a galvanized angle steel (20) installed above the hot-dip galvanized steel plate (1). The galvanized angle steel (20) is located on the side of the fair-faced concrete plate and is parallel to the fair-faced concrete plate. A clamping plate (23) is provided between the galvanized angle steel (20) and the fair-faced concrete plate. The clamping plate (23) can be horizontally moved and adjusted in a direction perpendicular to the galvanized angle steel (20).

2. The bottom mounting structure of a fair-faced concrete slab according to claim 1, characterized in that, A screw (24) is rotatably mounted on the center of the clamp (23) via a bearing. The galvanized angle steel (20) adopts an L-shaped structure. A screw sleeve (241) is embedded in the center of the galvanized angle steel (20). The screw sleeve (241) is adapted to and sleeved with the screw (24). One end of the screw (24) passes through the screw sleeve (241) and extends to the outside of the screw sleeve (241). A fine-tuning wheel (240) is installed at the end of the screw (24) that extends to the outside of the screw sleeve (241).

3. The bottom mounting structure of a fair-faced concrete slab according to claim 2, characterized in that, The upper surface of the slide (10) is provided with a slide (10) along the moving direction of the clamp (23). The bottom of the clamp (23) is provided with a limit guide block (231) corresponding to the position of the slide (10). The limit guide block (231) is slidably engaged in the slide (10).

4. The bottom mounting structure of a fair-faced concrete slab according to claim 3, characterized in that, The vertical end of the galvanized angle steel (20) is arranged in a rectangular array with multiple limiting sleeves (202). The clamping plate (23) is equipped with multiple limiting guide rods (203) on the side close to the galvanized angle steel (20). The limiting guide rods (203) correspond one-to-one with the limiting sleeves (202). The limiting guide rods (203) slide through the limiting guide rods (203).

5. The bottom mounting structure of a fair-faced concrete slab according to claim 1, characterized in that, A coarse adjustment guide groove (200) is provided above the horizontal end of the galvanized angle steel (20). The coarse adjustment guide groove (200) is provided along the moving direction of the clamping plate (23). A stud (25) is installed on the top of the hot-dip galvanized steel plate (1) at the position corresponding to the coarse adjustment guide groove (200). After the stud (25) passes through the coarse adjustment guide groove (200), the galvanized angle steel (20) is fixed by the sleeve locking assembly (27).

6. The bottom mounting structure of a fair-faced concrete slab according to claim 5, characterized in that, The upper surface of the galvanized angle steel (20) is provided with positioning teeth (201) on both sides of the coarse adjustment guide groove (200). The locking assembly (27) includes a locking nut (270) and a pressure plate (271) provided at the bottom of the locking nut (270). The bottom of the pressure plate (271) is provided with locking teeth (272) that can be adapted to the positioning teeth (201). The locking teeth (272) can engage with the positioning teeth (201).

7. The bottom mounting structure of a fair-faced concrete slab according to claim 1, characterized in that, Triangular plates (26) are provided on the inner sides of both ends of the galvanized angle steel (20), and a protective cover (21) is engaged above the triangular plates (26), which covers the inner side of the galvanized angle steel (20).

8. The bottom mounting structure of a fair-faced concrete slab according to claim 1, characterized in that, It also includes an impedance baffle (3), which is located on both sides of the hot-dip galvanized steel plate (1). The impedance baffle (3) adopts an inclined structure and is fixedly connected to the hot-dip galvanized steel plate (1) by a support member (4).

9. The bottom mounting structure of a fair-faced concrete slab according to claim 8, characterized in that, The support member (4) includes a diagonal brace (40), an upper fixing plate (41) and a lower fixing plate (42). The upper fixing plate (41) is welded to the top of the diagonal brace (40) and is fixedly connected to the impedance baffle (3) by bolts. The lower fixing plate (42) is welded to the bottom of the diagonal brace (40) and is fixedly connected to the upper surface of the hot-dip galvanized steel plate (1) by bolts.

10. The bottom mounting structure of a fair-faced concrete slab according to claim 9, characterized in that, A pad (230) is embedded in the side of the clamp (23) close to the fair-faced concrete slab.

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