Pre-fabricated stand plate shock absorption and energy dissipation structure and installation construction method thereof

Abstract

The application discloses a kind of precast stand board shock absorption energy dissipation structure, including precast stand board, upper and lower precast stand board are connected by pre-embedded pin and reserved bolt hole cooperation and the horizontal cavity of staggered stand is formed between upper and lower precast stand board, the bottom of the lower precast stand board in the upper and lower precast stand board is protruded with boss in the position corresponding to the horizontal cavity, recess is reserved for connecting the boss on the main structure, and shock-absorbing rubber pad is laid in the recess.The application optimizes precast stand structure and installation process by studying precast stand installation construction technology, to achieve the effect of shock absorption and energy dissipation.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated concrete components, and in particular to a prefabricated grandstand plate shock-absorbing and energy-dissipating structure and an installation and construction method thereof. Background Art

[0002] Traditional stadiums generally utilize cast-in-place structures. With the country's vigorous development of prefabricated buildings, prefabricated concrete stands (hereinafter referred to as prefabricated stands) have begun to be used in China. In recent years, with the deepening of green construction requirements, the use of prefabricated stands has increased, and they are generally used in larger, higher-quality stadiums. Prefabricated stands offer advantages such as low formwork investment, minimal on-site wet work, fast construction schedule, attractive appearance, durable components, and good social and environmental benefits. Through in-depth structural design, the use of prefabricated stands can achieve significant economic and social benefits.

[0003] However, the installation and construction process of existing prefabricated stands is relatively complicated and does not have the function of shock absorption efficiency. Therefore, it is necessary to study the installation and construction process of prefabricated stands, optimize the structure and installation process of prefabricated stands, and achieve the effect of shock absorption and energy dissipation. Summary of the Invention

[0004] In order to solve the shortcomings of the existing technology, the present invention provides a prefabricated stand plate shock absorption and energy dissipation structure and its installation and construction method, which can optimize the prefabricated stand structure and installation process to achieve the effect of shock absorption and energy dissipation.

[0005] The present invention proposes the following technical solutions to solve the above technical problems:

[0006] A prefabricated grandstand panel shock-absorbing and energy-dissipating structure, characterized in that it includes prefabricated grandstand panels, wherein the upper and lower prefabricated grandstand panels are connected by embedded pins and reserved pin holes, and a staggered horizontal cavity is formed between the upper and lower prefabricated grandstand panels, and the bottom of the prefabricated grandstand panel located at the lower one of the upper and lower prefabricated grandstand panels has a boss protruding downward at a position corresponding to the horizontal cavity, and a groove for connecting the boss is reserved on the main structure, and a shock-absorbing rubber pad is laid in the groove.

[0007] A further improvement of the present invention is that drip lines are additionally provided at the radial ends of the prefabricated stand panels corresponding to the drip grooves reserved on the main structure beams.

[0008] A further improvement of the present invention is that a water collection trough is additionally provided in the radial middle of the prefabricated stand panel.

[0009] A further improvement of the present invention is that the reserved pin hole is filled with sealant.

[0010] A further improvement of the present invention is that the reserved pin hole is filled with grouting material.

[0011] The further improvement of the present application is that the height difference between the upper and lower prefabricated stand plates is adjusted by the cushion and the steel plate, and the edges of the steel plate are uniformly provided with rubber block supports.

[0012] The further improvement of the present application is that the prefabricated stand plate comprises a horizontal plate, the first end of the horizontal plate is protruded downward and the second end of the horizontal plate is protruded upward, forming the boss and the staggered plate, and the second end of the horizontal plate is protruded downward to form a staggered part which is matched with the top surface of the staggered plate.

[0013] The further improvement of the present application is that the pin is vertically embedded downward in the part of the horizontal plate close to the staggered part, and the reserved bolt hole is reserved in the top surface of the staggered plate.

[0014] The further improvement of the present application is that the two sides of the shock-absorbing rubber pad are turned up along the groove side wall.

[0015] A mounting construction method of the prefabricated stand plate shock-absorbing and energy-dissipating structure, comprising the steps of:

[0016] Positioning the prefabricated stand plate on the mounting position of the main structure and reserving the groove on the main structure;

[0017] Preprocessing the groove and laying the shock-absorbing rubber pad;

[0018] Embedding the pin and reserving the bolt hole in the prefabricated stand plate during the production process, and reserving the bottom boss;

[0019] Installing the prefabricated stand plate in layers on site, connecting the bottom boss of the prefabricated stand plate with the reserved groove on the main structure, connecting the upper and lower prefabricated stand plates through the embedded pin and the reserved bolt hole, and reserving the horizontal cavity of the staggered plate between the upper and lower prefabricated stand plates;

[0020] Sealing the joint between the prefabricated stand plates with the sealant.

[0021] Due to the above technical scheme, the present application has the following beneficial effects:

[0022] Embedding the pin and reserving the bolt hole in the prefabricated stand plate during the production process to ensure the connection between the upper and lower prefabricated stand plates, reserving the groove with a certain depth on the main structure concrete beam to ensure the connection between the prefabricated stand plate and the main structure concrete beam, forming the horizontal cavity of the staggered plate between the upper and lower prefabricated stand plates, using the material waterproof and structural waterproof joint method, adding the structural water tank in the radial middle of the stand plate in addition to the material waterproof between the left and right stand plates, adding the water dripping line and the water dripping groove at the two ends of the stand plate, and organizing the water leakage caused by the material waterproof defects of the vertical joint surface through the groove, so as to ensure the realization of the waterproof effect of the stand. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the connection between the upper and lower prefabricated grandstand panels in the shock-absorbing and energy-dissipating structure of the prefabricated grandstand panels in an embodiment of the present invention.

[0025] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0026] Figure 3 for Figure 1 Enlarged view of part B in the middle.

[0027] Figure 4 This is a schematic diagram of the connection between the left and right prefabricated grandstand panels in the shock-absorbing and energy-dissipating structure of the prefabricated grandstand panels in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0029] See Figures 1 to 4 As shown, an embodiment of the present invention provides a prefabricated grandstand panel shock-absorbing and energy-dissipating structure, which includes a prefabricated grandstand panel 11, and the upper and lower prefabricated grandstand panels 11 are connected by embedded pins 12 and reserved pin holes 13, and a staggered horizontal cavity 14 is formed between the upper and lower prefabricated grandstand panels 11. The bottom of the lower prefabricated grandstand panel 11 of the upper and lower prefabricated grandstand panels 11 is provided with a boss 15 protruding downward at the position corresponding to the horizontal cavity 14, and a groove 20 for connecting the boss 15 is reserved on the concrete beam 2 of the main structure, and a shock-absorbing rubber pad 21 is laid in the groove 20.

[0030] Further, the drip line 17 is additionally arranged at the drip groove 16 reserved on the main structure beam at the radial two ends of the prefabricated stand plate 11. A water accumulation groove (not shown in the figure) is additionally arranged at the radial middle of the prefabricated stand plate 11, constituting the structural waterproof between the left and right prefabricated stand plates 11. The prefabricated stand plate 11 itself can be made of waterproof material, constituting material waterproof. Therefore, the prefabricated stand plate shock absorption and energy dissipation structure of the present application adopts the method of combining material waterproof and structural waterproof. In addition to material waterproof, the water accumulation groove is additionally arranged at the radial middle of the prefabricated stand plate 11 between the left and right prefabricated stand plates 11, and the drip line 17 and the drip groove 16 are additionally arranged at the two ends of the prefabricated stand plate 11. The water leakage caused by the material waterproof defect of the vertical joint surface is discharged in an organized manner through the groove, so as to ensure the realization of the stand waterproof effect. Preferably, the water accumulation groove can be communicated with the adjacent drip line 17 for drainage.

[0031] In the embodiment, each prefabricated stand plate 11 comprises a horizontal panel, the radial first end bottom and top of the horizontal panel are respectively protruded downward and upward, the bottom forms the boss 15, and the top forms the staggered platform 140. The radial second end of the horizontal panel is protruded downward to form the staggered part 111 matched with the shape of the top surface of the staggered platform 140. When the upper and lower prefabricated stand plates 11 are spliced, the staggered part 111 at the second end bottom of the upper prefabricated stand plate 11 is matched with the staggered platform 140 at the second end top of the lower prefabricated stand plate 11, connected through the embedded dowel 12 and the reserved bolt hole 13, and kept a certain distance to form a horizontal cavity 14 with the staggered platform. The distance can be controlled through the insertion depth of the dowel 12 and the reserved bolt hole 13, or a rubber pad with a certain height can be arranged therebetween. The dowel 12 is vertically embedded downward in the part of the horizontal panel 11 close to the staggered part 111, and the reserved bolt hole 13 is reserved on the top surface of the staggered platform 140.

[0032] Preferably, the reserved bolt hole 13 can also be filled with sealant or grouting material, such as C60 grouting material.

[0033] Preferably, the upper and lower prefabricated stand plates 11 can also be adjusted in height difference through the arrangement of the pad steel plate (not shown in the figure), and the rubber blocks are uniformly arranged on the edges of the steel plate.

[0034] Further, the main structure concrete beam 2 has a groove 20 reserved at a certain depth on the stepped surface, used for connecting the boss 15 at the first end bottom of the prefabricated stand plate 11. The shock absorption rubber pad 21 is arranged in the groove 20, and preferably, the shock absorption rubber pad 21 is turned up by about 1 cm (not exceeding the groove) along the side wall of the groove 20 on both sides along the radial direction of the prefabricated stand plate 11, playing a buffering role.

[0035] The present application also provides a mounting construction method of the prefabricated stand plate shock absorption and energy dissipation structure in the above embodiment, and the main process flow is as follows:

[0036] The prefabricated stand plate is installed in the field from the first row of each layer in a zoned and segmented manner and in the field outward direction. The installation process flow is: construction preparation → measurement and line laying → structural base treatment → support placement → stand lifting → connection hole grouting → installation in place → component leveling → quality inspection.

[0037] The specific installation process includes the following steps:

[0038] (I) Position the prefabricated stand plate on the installation position of the main structure and reserve a groove on the main structure;

[0039] Specifically, the prefabricated stand plate installation mainly includes structural base treatment and installation in place. Before installation, the positioning of the prefabricated stand plate is reviewed according to the measured center line, elevation line, and anchor bolt center line.

[0040] The main structure in this embodiment is a main structure concrete beam in a ladder shape, and a groove 20 of a certain depth is reserved on the ladder face. The position and depth are determined according to the bottom boss 15 of the prefabricated stand plate.

[0041] (II) Pretreat the groove and lay the shock-absorbing rubber pad;

[0042] The pretreatment includes pretreating the concrete ladder, wetting the bottom with water, then setting a M20 mortar leveling layer and reserving the groove 20, compacting and smoothing the leveling layer; the shock-absorbing rubber pad 21 is supported on the upper part of the leveling layer as a stand plate support, and the shock-absorbing rubber pad is turned up by 1 cm to play a buffering role.

[0043] (III) The prefabricated stand plate 11 is pre-buried with a dowel pin 12 and a reserved bolt hole 13, and a bottom boss 15 is reserved;

[0044] The prefabricated stand plate 11 is installed in layers in the field, the bottom boss 15 of the prefabricated stand plate 11 is connected with the reserved groove 20 on the concrete ladder, the upper and lower prefabricated stand plates 11 are connected through the pre-buried dowel pin 12 and the reserved bolt hole 13, and a horizontal cavity 14 for staggering is reserved between the upper and lower prefabricated stand plates 11;

[0045] Specifically, the high-strength connecting bolt hole 13 is reserved when the prefabricated stand plate 11 is produced in the factory, and the dowel pin 12 is also pre-buried on the prefabricated stand plate 11. After cleaning the debris and sewage in the reserved bolt hole 13 hole, fill the C60 grouting material mixed according to the mixing ratio in the bolt hole 13, then lift the prefabricated stand plate 11 and slowly lower it down, the dowel pin 12 is aligned with the grouting hole and inserted into position and aligned. The grouting material should be used immediately after mixing to prevent solidification.

[0046] If the concrete step support has height difference after the prefabricated stand board is hoisted and positioned horizontally, thin steel plate is used for adjustment, and the plate edge is evenly supported and cushioned on the front row stand by 10mm thick rubber block. After the same row stand board is hoisted and installed, the overall position error is measured and uniformly adjusted to ensure that the component position is accurate and the plate joint is uniform.

[0047] (IV) The plate joint between the installed prefabricated stand boards is sealed with sealant.

[0048] After the first row stand board is installed, the other rows only need to be adjusted and installed according to the front row, and the overall position is measured once every 3-5 rows to ensure that the stand board position and size are within the error range. After the stand board is installed in layers, the plate joint is sealed with sealant, and the plate joint dust is cleaned with a brush before gluing. If the corners are damaged, they should be repaired first.

[0049] In the prefabricated stand board production process, the pin and the reserved pin hole are pre-embedded to ensure the connection between the upper and lower prefabricated stand boards; a groove with a certain depth is reserved on the main structure concrete beam to ensure the connection between the stand board and the main structure concrete beam; a horizontal cavity is formed between the upper and lower prefabricated stand boards, and a material waterproof and structure waterproof joint method is adopted, in addition to material waterproof between the left and right stand boards, a structure water tank is additionally arranged in the radial middle of the stand board, and a water droplet tank is additionally arranged at both ends of the stand board. The water leakage caused by the material waterproof defects of the vertical joint surface is organized and discharged through the groove, so as to ensure the realization of the stand waterproof effect. Further, the horizontal cavity formed between the upper and lower prefabricated stand boards and the groove and shock-absorbing rubber pad used for connection between the main structure and the prefabricated stand board can achieve the effect of shock absorption and energy dissipation. At the same time, the prefabricated stand structure and the installation process are optimized to achieve good economic and social benefits.

[0050] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A prefabricated grandstand plate shock absorption and energy dissipation structure, characterized by: It comprises a prefabricated grandstand board, wherein the upper and lower prefabricated grandstand boards are connected by pre-buried pins and reserved pin holes, and a staggered horizontal cavity is formed between the upper and lower prefabricated grandstand boards, and the bottom of the prefabricated grandstand board located at the lower position of the upper and lower prefabricated grandstand boards is downwardly protruded with a boss at a position corresponding to the horizontal cavity, and a groove for connecting the boss is reserved on the main structure, and a shock-absorbing rubber pad is laid in the groove; Drip lines are added at the radial ends of the prefabricated stand panels corresponding to the drip grooves reserved on the main structure beams; A water collection trough is added in the radial middle of the prefabricated stand plate; The height difference between the upper and lower prefabricated stand plates is adjusted by placing steel plates, and rubber blocks are evenly arranged on the edges of the steel plates; The prefabricated viewing platform comprises a horizontal panel, the bottom and top of the radial first end of the horizontal panel are respectively convex downward and upward to form the convex platform and the staggered platform, and the radial second end of the horizontal panel is convex downward to form a staggered portion adapted to the shape of the top surface of the staggered platform; The pin is embedded vertically downward in the portion of the horizontal panel close to the staggered portion, and the pin hole is reserved on the top surface of the staggered platform; Both sides of the shock-absorbing rubber pad are turned upward along the side walls of the groove.

2. The prefabricated grandstand plate shock absorption and energy dissipation structure according to claim 1 is characterized in that: The reserved pin hole is filled with sealant.

3. The prefabricated grandstand plate shock absorption and energy dissipation structure according to claim 1 is characterized in that: The reserved pin hole is filled with grouting material.

4. A method for installing and constructing the prefabricated grandstand panel shock-absorbing and energy-dissipating structure according to any one of claims 1 to 3, characterized in that: Including steps: Locate the installation position of the prefabricated stand panels on the main structure and reserve grooves on the main structure; Pre-treating the groove and laying a shock-absorbing rubber pad; During the production process, prefabricated stand panels are pre-buried with pins, pre-reserved pin holes, and pre-reserved bottom bosses; The prefabricated stand panels are installed on site in layers, and the bottom bosses of the prefabricated stand panels are connected to the reserved grooves on the main structure. The upper and lower prefabricated stand panels are connected by pre-buried pins and reserved pin holes, and a horizontal cavity for staggered platforms is reserved between the upper and lower prefabricated stand panels; The seams between the prefabricated stand panels that have been installed are sealed with sealant.

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