Prefabricated slab clear water stand plate structure and mounting method thereof

Abstract

The invention belongs to the technical field of fair-faced grandstand plates, and particularly relates to a precast slab fair-faced grandstand plate structure and a mounting method thereof. The two ends of the stand plate assembly extend to the tops of the two sets of concrete step beams, one set of stand plate assembly is hoisted to the top of the tread at the lowest position, in the falling process of a crane, the set of stand plate assembly is horizontally laid on the top of the tread at the lowest position, and a first layer of clear water stand plate is formed; the second stand plate assembly is hoisted on one side of the top of the previous stand plate assembly, so that the joint of the two stand plate assemblies is obliquely arranged, and the second stand plate assembly is subjected to buffering and angle adjustment in the slow lowering process when the second stand plate assembly is hoisted; the bottoms of the two adjacent stand plate assemblies are fixedly connected with the concrete step beam through the self-locking assemblies, and the overall installation attractiveness and quality are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fair-faced grandstand slabs, and particularly relates to a structure of a precast fair-faced grandstand slab and an installation method thereof. Background Art

[0002] After the installation of the precast fair-faced grandstand slab is completed, the requirements for handover acceptance can be achieved at one time, and no decoration treatment is required on the surface of the grandstand slab. The surface has high strength and very good use effect. At present, it has become the main form of the construction of grandstands in many large venues. Nowadays, the structures of the precast fair-faced grandstand slabs adopted are relatively simple, generally prefabricated concrete grandstand slabs.

[0003] After retrieval, in the prior art, Chinese Patent Publication No. CN202970006U, Authorization Publication Date: June 5, 2013, discloses an installation construction structure of an L-shaped precast fair-faced grandstand slab, including a pre-constructed concrete step beam. There are multiple layers of steps arranged from top to bottom on the concrete step beam, and a combined grandstand slab is arranged on the tread surface of each layer of the multiple steps. The structures of the multiple combined grandstand slabs are the same, and the multiple combined grandstand slabs are arranged from top to bottom; the combined grandstand slab includes multiple concrete grandstand slabs arranged from left to right on the tread surface, and the multiple concrete grandstand slabs are all L-shaped grandstand slabs; a fastening installation structure is arranged on both the left and right sides of each concrete grandstand slab. The fastening installation structure includes multiple embedded nuts, multiple bolts, and multiple adjusting nuts respectively installed on the multiple bolts and used for adjusting the installation height of the concrete grandstand slab where they are located. The structure of this application is reasonably designed, easy to install, has a relatively low construction cost input, is easy to ensure the installation accuracy of the grandstand slab, requires less manpower, and has a faster construction progress.

[0004] However, this device still has the following defects: Although the construction cost input can be relatively low and the installation accuracy of the grandstand slab is easy to ensure, during the installation of the fair-faced grandstand slab, hoisting is required. During the process of connecting and assembling the fair-faced grandstand slabs during hoisting, it is easy to cause damage or cracking of the concrete-structured fair-faced grandstand slabs, affecting the aesthetics and quality of the overall installation. Summary of the Invention

[0005] In view of the above problems, the invention provides a structure of a precast fair-faced grandstand slab, including two groups of concrete step beams and a grandstand slab assembly; both ends of the grandstand slab assembly extend to the tops of the two groups of concrete step beams. A plurality of groups of tread surfaces are arranged on the tops of the two groups of grandstand slab assemblies, and the plurality of groups of tread surfaces are arranged in a stepped shape. A plurality of groups of grandstand slab assemblies are provided, and a self-locking assembly is arranged at the bottom of each two groups of grandstand slab assemblies.

[0006] Further, the grandstand slab assembly includes a grandstand slab; the cross-sectional shape of the grandstand slab is set at a right angle, and a foothold platform is arranged on one side of the top of the grandstand slab near the right angle.

[0007] Further, a seat assembly platform is arranged on one side of the top of the grandstand slab far from the right angle, one end of the seat assembly platform near the edge is arranged in an inclined shape, and a plurality of groups of hoisting holes are formed on the surface of the foothold platform, and the plurality of groups of hoisting holes are arranged at equal intervals.

[0008] Further, drainage covers are movably clamped on the inner walls of the plurality of groups of hoisting holes, a cross beam is arranged on one side of the bottom of the grandstand slab near the right angle, and the ends of the cross beam are respectively attached to the side walls of two concrete step beams.

[0009] Further, a buffer groove is formed above the cross beam perpendicular to the top of the grandstand slab, a buffer beam is slidably connected to the inner wall of the buffer groove, a right-angle groove is formed on the top of the buffer beam, a plurality of groups of buffer members are arranged at the bottom of the buffer beam, and one sides of the plurality of groups of buffer members far from the output ends are respectively fixedly connected to the bottom end of the inner wall of the buffer groove.

[0010] Further, the grandstand slab, the foothold platform, the seat assembly platform, the cross beam and the buffer beam are all made of concrete material, and the grandstand slab, the foothold platform, the seat assembly platform and the cross beam are of an integrally formed structure.

[0011] Further, the self-locking assembly includes two self-locking blocks and an inclined pull rod; self-locking grooves are formed on the tops of the two self-locking blocks, and the two self-locking grooves are respectively clamped on the bottom of the cross beam.

[0012] Further, sockets are formed at the bottoms of the two self-locking blocks, pins are respectively fixedly connected to the two ends of the inclined pull rod, and the two pins are respectively clamped on the inner walls of the sockets.

[0013] Further, a positioning hole is formed on the surface of the inclined pull rod, an expansion screw penetrates through the positioning hole, and the end of the expansion screw extends into the concrete step beam.

[0014] An installation method for a precast slab fair-faced grandstand slab structure includes the following steps

[0015] Hoist a set of grandstand slab assemblies onto the top of the tread at the lowest position;

[0016] During the process of the crane descending, horizontally lay the set of grandstand slab assemblies on the top of the tread at the lowest position to form the first layer of fair-faced grandstand slabs;

[0017] The second set of stand board assemblies is hoisted on one side of the top of the previous set of stand board assemblies, so that the connection between the two sets of stand board assemblies is inclined;

[0018] During the process of slowly lowering the second set of stand board components during hoisting, the second set of stand board components are buffered and the angle is adjusted;

[0019] The bottoms of two adjacent sets of grandstand slab assemblies are fastened to the concrete step beams through self-locking assemblies.

[0020] The beneficial effects of the present invention are:

[0021] 1. By hoisting a group of stand board assemblies on the top of the lowest tread, the group of stand board assemblies are horizontally laid on the top of the lowest tread during the process of the crane falling, so as to form the first layer of clear water stand boards; by hoisting the second group of stand board assemblies on one side of the top of the previous group of stand board assemblies, the connection between the two groups of stand board assemblies is inclined; by slowly lowering the second group of stand board assemblies during hoisting, the second group of stand board assemblies are buffered and the angle is adjusted; the bottom of the two adjacent groups of stand board assemblies are fastened to the concrete step beam through the self-locking assembly, thereby improving the beauty and quality of the overall installation.

[0022] 2. The footrest platform is set at a right angle. While the audience in the back row can place their feet, the drainage cover in the lifting hole can be removed to facilitate tying the lifting rope in the lifting hole to lift the stand. After the stand is placed horizontally, the drainage cover in each group of lifting holes can be assembled to reduce water accumulation on the top of the stand. The inclined seat assembly platform can be used to allow the audience in the front row to watch from a bird's-eye view while speeding up the discharge of rainwater from the top of the stand, so that the stand can be quickly drained in heavy rain or continuous rainfall.

[0023] 3. The buffer beam is slidably fitted into the buffer groove at the top of the grandstand board, and several groups of buffer parts at the bottom of the buffer beam are used to make the buffer beam be convex when there is no resistance on the top. The buffer beam with the convex setting can be used to clamp the seat assembly platform of the grandstand board in the right-angle groove of the front grandstand board during the lifting of the rear grandstand board, and the buffer parts in the front grandstand board can be used to position and buffer the seat assembly platform of the rear grandstand board. In the process of the buffer beam of the front grandstand board pressing down the buffer parts, the rear grandstand board is installed horizontally, and the right-angle groove on the top of the buffer beam is used to form an anti-slip cavity at the bottom of the seat assembly platform of the rear grandstand board, so that the assembled rear grandstand board is in a stable state.

[0024] 4. Two sets of self-locking blocks utilize the self-locking grooves at the top to be respectively clamped on the crossbeams at the bottoms of two adjacent sets of grandstand slabs. Then, a bolt is inserted into the sockets at the bottoms of the two sets of self-locking blocks, and expansion bolts are used to connect between the positioning holes and the concrete step beams, so that the two sets of grandstand slabs are in a spliced state, which can further prevent the displacement of the grandstand slabs.

[0025] Other features and advantages of the present invention will be described in the subsequent specification. Moreover, some of them will become obvious from the specification, or can be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures pointed out in the specification, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 Shows the structural schematic diagram of the precast fair-faced grandstand slab structure in the embodiment of the present invention Figure 1 ;

[0028] Figure 2 Shows the structural schematic diagram of the precast fair-faced grandstand slab structure in the embodiment of the present invention Figure 2 ;

[0029] Figure 3 Shows the assembly schematic diagram of the grandstand slab assembly in the embodiment of the present invention Figure 1 ;

[0030] Figure 4 Shows the assembly schematic diagram of the grandstand slab assembly in the embodiment of the present invention Figure 2 ;

[0031] Figure 5 Shows the structural schematic diagram of the grandstand slab assembly in the embodiment of the present invention Figure 1 ;

[0032] Figure 6 Shows the structural schematic diagram of the grandstand slab assembly in the embodiment of the present invention Figure 2 ;

[0033] Figure 7 Shows the structural schematic diagram of the self-locking assembly in the embodiment of the present invention.

[0034] In the figure: 1. Concrete step beam; 2. Stand seat plate assembly; 21. Stand seat plate; 22. Landing platform; 23. Seat assembly platform; 24. Hoisting hole; 25. Cross beam; 26. Buffer beam; 27. Right-angle groove; 28. Buffer member; 3. Tread surface; 4. Self-locking assembly; 41. Self-locking block; 42. Self-locking groove; 43. Socket; 44. Bolt; 45. Diagonal tension rod; 46. Positioning hole. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] An embodiment of the present invention provides a precast slab fair-faced stand seat plate structure, which includes two groups of concrete step beams 1 and a stand seat plate assembly 2; for example, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown.

[0037] Both ends of the stand seat plate assembly 2 extend to the tops of the two groups of concrete step beams 1. A plurality of groups of tread surfaces 3 are arranged on the tops of the two groups of stand seat plate assemblies 2, and the plurality of groups of tread surfaces 3 are arranged in a stepped manner. A plurality of groups of stand seat plate assemblies 2 are provided, and a self-locking assembly 4 is arranged at the bottom of each two groups of stand seat plate assemblies 2.

[0038] Specifically, the plurality of groups of stand seat plate assemblies 2 are laid in a stepped manner along the tread surfaces 3 at the tops of the two groups of concrete step beams 1. During laying, first, a group of stand seat plate assemblies 2 is hoisted to the top of the tread surface 3 at the lowest position, and during the lowering process of the crane, the group of stand seat plate assemblies 2 is horizontally laid on the top of the tread surface 3 at the lowest position to form the first layer of fair-faced stand seat plate. Then, the second group of stand seat plate assemblies 2 is hoisted to one side of the top of the previous group of stand seat plate assemblies 2, so that the connection part between the two groups of stand seat plate assemblies 2 is arranged obliquely. During the slow lowering process when the second group of stand seat plate assemblies 2 is hoisted, the second group of stand seat plate assemblies 2 is buffered and the angle is adjusted to reduce the damage at the connection part during the splicing process of the stand seat plate assemblies 2 and reduce the labor intensity of construction workers. Then, the adjacent two groups of stand seat plate assemblies 2 are tightly connected to the concrete step beam 1 through the self-locking assembly 4, so as to improve the anti-displacement effect of the plurality of groups of stand seat plate assemblies 2.

[0039] The stand seat plate assembly 2 includes a stand seat plate 21; for example, as Figure 5 and Figure 6 shown.

[0040] The cross-sectional shape of the grandstand slab 21 is set at a right angle. One side of the top of the grandstand slab 21 near the right angle is provided with a foothold platform 22. One side of the top of the grandstand slab 21 far from the right angle is provided with a seat assembly platform 23. One end of the seat assembly platform 23 near the edge is set in an inclined shape. A plurality of groups of hoisting holes 24 are opened on the surface of the foothold platform 22, and the plurality of groups of hoisting holes 24 are arranged at equal intervals. Drainage covers are movably clamped on the inner walls of the plurality of groups of hoisting holes 24. One side of the bottom of the grandstand slab 21 near the right angle is provided with a cross beam 25. The ends of the cross beam 25 are respectively and fittingly connected to the side walls of the two concrete step beams 1. A buffer groove is opened directly above the cross beam 25 on the top of the grandstand slab 21 perpendicular to the cross beam 25. A buffer beam 26 is slidably connected to the inner wall of the buffer groove. A right-angle groove 27 is opened on the top of the buffer beam 26. A plurality of groups of buffer members 28 are arranged at the bottom of the buffer beam 26. One sides of the plurality of groups of buffer members 28 far from the output ends are respectively and fixedly connected to the bottom end of the inner wall of the buffer groove.

[0041] Furthermore, the grandstand slab 21, the foothold platform 22, the seat assembly platform 23, the cross beam 25 and the buffer beam 26 are all made of concrete material, and the grandstand slab 21, the foothold platform 22, the seat assembly platform 23 and the cross beam 25 are of an integrally formed structure.

[0042] Specifically, the foothold platform 22 is set at a right angle. While meeting the need for the rear-row audience to place their feet, after the drainage covers in the hoisting holes 24 are disassembled, it is convenient to tie hoisting ropes in the hoisting holes 24 to lift the grandstand slab 21. After the grandstand slab 21 is horizontally placed stably, the drainage covers in each group of hoisting holes 24 can be assembled to reduce the water accumulation on the top surface of the grandstand slab 21. With the inclined seat assembly platform 23, while enabling the front-row audience to watch from a bird's-eye view angle, it can also accelerate the drainage of rainwater on the top surface of the grandstand slab 21 for rapid drainage of the grandstand slab 21 in rainy weather or continuous rainfall weather;

[0043] The buffer beam 26 is slidably fitted in the buffer groove at the top of the grandstand board 21, and a plurality of groups of buffer members 28 at the bottom of the buffer beam 26 are used to make the buffer beam 26 be convex when there is no interference at the top. The buffer beam 26 with the convex setting can be used to clamp the seat assembly platform 23 of the grandstand board 21 in the right-angle groove 27 of the front grandstand board 21 during the hoisting process of the rear grandstand board 21, and the buffer members 28 in the front grandstand board 21 can be used to position and buffer the seat assembly platform 23 of the rear grandstand board 21. In the process of the buffer beam 26 of the front grandstand board 21 pressing down the buffer members 28, the rear grandstand board 21 is horizontally installed, and the right-angle groove 27 at the top of the buffer beam 26 is used to form an anti-slip cavity at the bottom of the seat assembly platform 23 of the rear grandstand board 21, so that the assembled rear grandstand board 21 is in a stable state.

[0044] The self-locking assembly 4 includes two sets of self-locking blocks 41 and a diagonal tie rod 45; illustratively, as Figure 7 shown.

[0045] The tops of the two groups of self-locking blocks 41 are provided with self-locking grooves 42, and the two groups of self-locking grooves 42 are both clamped on the bottom of the cross beam 25. The bottoms of the two groups of self-locking blocks 41 are provided with sockets 43. Both ends of the inclined rod 45 are fixedly connected with pins 44, and the two groups of pins 44 are clamped on the inner wall of the socket 43. The surface of the inclined rod 45 is provided with positioning holes 46, and expansion screws are inserted into the positioning holes 46, and the ends of the expansion screws extend into the concrete step beam 1.

[0046] Specifically, the two groups of self-locking blocks 41 use the self-locking grooves 42 on the top to be respectively clamped on the crossbeams 25 at the bottom of the two adjacent groups of grandstand boards 21, and use the pins 44 to be inserted into the sockets 43 at the bottom of the two groups of self-locking blocks 41, and then the expansion screws are connected between the positioning holes 46 and the concrete step beams 1, so that the two groups of grandstand boards 21 are in a spliced ​​state, which can further avoid the displacement of the grandstand boards 21.

[0047] The working principle of the prefabricated clean water stand structure proposed by the embodiment of the present invention is as follows:

[0048] The footrest platform 22 is arranged at a right angle, and while the rear row audience can place their feet, after the drainage cover plate in the lifting hole 24 is removed, it is convenient to tie the lifting rope in the lifting hole 24 to lift the stand board 21. After the stand board 21 is placed horizontally, the drainage cover plate in each group of lifting holes 24 can be assembled to reduce the accumulation of water on the top of the stand board 21. The inclined seat assembly platform 23 can be used to allow the front row audience to watch from a bird's-eye view, while accelerating the discharge of rainwater on the top of the stand board 21, and quickly drain the stand board 21 in heavy rain or continuous rain weather;

[0049] It is slidably and fittingly connected to the buffer groove at the top of the grandstand slab 21 through the buffer beam 26, and several groups of buffer members 28 at the bottom of the buffer beam 26 are used to make the buffer beam 26 protrude when there is no contact at the top. By using the buffer beam 26 with such a protruding setting, during the hoisting process of the rear-row grandstand slab 21, the seat assembly platform 23 of this grandstand slab 21 can be clamped into the right-angle groove 27 of the front-row grandstand slab 21, and the buffer members 28 in the front-row grandstand slab 21 are used to position and buffer the seat assembly platform 23 of the rear-row grandstand slab 21. During the process of the buffer beam 26 in the front-row grandstand slab 21 pressing down the buffer members 28, the rear-row grandstand slab 21 is in a horizontally installed state, and the right-angle groove 27 at the top of the buffer beam 26 forms an anti-slip cavity at the bottom of the seat assembly platform 23 of the rear-row grandstand slab 21, making the assembled rear-row grandstand slab 21 in a stable state;

[0050] Two groups of self-locking blocks 41 are respectively clamped on the cross beam 25 at the bottom of two adjacent groups of grandstand slabs 21 by using the self-locking grooves 42 at the top, and a pin 44 is inserted into the socket 43 at the bottom of the two groups of self-locking blocks 41. Then, expansion screws are connected between the positioning holes 46 and the concrete step beam 1, so that the two groups of grandstand slabs 21 are in a spliced state, which can further prevent the displacement of the grandstand slabs 21.

[0051] Based on the above-mentioned structure of the precast fair-faced grandstand slab, the embodiment of the present invention further provides an installation method for the structure of the precast fair-faced grandstand slab, including the following steps:

[0052] By hoisting a group of grandstand slab components to the top of the tread at the lowest position;

[0053] During the process of the crane descending, the group of grandstand slab components are horizontally laid on the top of the tread at the lowest position to form the first layer of fair-faced grandstand slab;

[0054] By hoisting the second group of grandstand slab components to the top side of the previous group of grandstand slab components, making the connection part between the two groups of grandstand slab components inclined;

[0055] During the process of slowly lowering the second group of grandstand slab components during hoisting, the second group of grandstand slab components are buffered and the angle is adjusted;

[0056] The bottom of adjacent two groups of grandstand slab components is firmly connected to the concrete step beam through the self-locking component.

[0057] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A prefabricated clear water stand structure, characterized in that: It comprises two groups of concrete step beams (1) and a grandstand assembly (2); the two ends of the grandstand assembly (2) extend to the top of the two groups of concrete step beams (1); the tops of the two groups of grandstand assemblies (2) are provided with a plurality of treads (3), and the plurality of treads (3) are arranged in a stepped shape; the grandstand assembly (2) is provided with a plurality of groups, and the bottoms of every two groups of grandstand assemblies (2) are provided with a self-locking assembly (4).

2. The prefabricated clear water viewing platform structure according to claim 1 is characterized in that: The grandstand board assembly (2) comprises a grandstand board (21); the cross-sectional shape of the grandstand board (21) is arranged at a right angle, and a footrest platform (22) is arranged on the top of the grandstand board (21) and on one side close to the right angle.

3. The prefabricated clear water viewing platform structure according to claim 2 is characterized in that: A seat assembly platform (23) is provided on the top of the stand board (21) and on one side away from the right angle, and one end of the seat assembly platform (23) and on one side close to the edge is arranged in an inclined shape. A plurality of groups of hanging holes (24) are opened on the surface of the landing platform (22), and the plurality of groups of hanging holes (24) are arranged at equal intervals.

4. The prefabricated clear water viewing platform structure according to claim 3 is characterized in that: The inner walls of the plurality of groups of the hoisting holes (24) are movably connected with drainage cover plates, and a crossbeam (25) is provided at the bottom of the stand board (21) and on one side close to the right angle, and the ends of the crossbeam (25) are fitted and connected to the side walls of the two groups of concrete step beams (1).

5. The prefabricated clear water viewing platform structure according to claim 4 is characterized in that: A buffer groove is provided at the top of the stand board (21) and perpendicular to the top of the cross beam (25); a buffer beam (26) is slidably connected to the inner wall of the buffer groove; a right-angle groove (27) is provided at the top of the buffer beam (26); a plurality of groups of buffer components (28) are provided at the bottom of the buffer beam (26); and the plurality of groups of buffer components (28) are fixedly connected to the bottom end of the inner wall of the buffer groove on one side away from the output end.

6. The prefabricated clear water viewing platform structure according to claim 5 is characterized in that: The stand plate (21), the footrest platform (22), the seat assembly platform (23), the crossbeam (25) and the buffer beam (26) are all made of concrete, and the stand plate (21), the footrest platform (22), the seat assembly platform (23) and the crossbeam (25) are an integrally formed structure.

7. The prefabricated clear water viewing platform structure according to claim 1 is characterized in that: The self-locking assembly (4) comprises two groups of self-locking blocks (41) and a diagonal tie rod (45); the tops of the two groups of self-locking blocks (41) are both provided with self-locking grooves (42), and the two groups of self-locking grooves (42) are both clamped on the bottom of the crossbeam (25).

8. The prefabricated clear water viewing platform structure according to claim 7 is characterized in that: The bottoms of the two groups of self-locking blocks (41) are both provided with sockets (43), both ends of the inclined tie rod (45) are fixedly connected with latches (44), and the two groups of latches (44) are both clamped on the inner wall of the sockets (43).

9. The prefabricated clean water viewing platform structure according to claim 8 is characterized in that: A positioning hole (46) is provided on the surface of the inclined tie rod (45), an expansion screw penetrates through the positioning hole (46), and the end of the expansion screw extends into the concrete step beam (1).

10. A method for installing a prefabricated clear water viewing stand structure according to any one of claims 1 to 9, characterized in that: The installation method comprises: By hoisting a set of grandstand plate assemblies on top of the lowest tread; During the process of the crane descending, the group of stand board components are horizontally laid on the top of the lowest tread to form the first layer of clear water stand boards; The second set of stand board assemblies is hoisted on one side of the top of the previous set of stand board assemblies, so that the connection between the two sets of stand board assemblies is inclined; During the process of slowly lowering the second set of stand board components during hoisting, the second set of stand board components are buffered and the angle is adjusted; The bottoms of two adjacent sets of grandstand slab assemblies are fastened to the concrete step beams through self-locking assemblies.

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