Connecting structure suitable for precast concrete component cavity system

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a cavity system connecting structure suitable for a concrete prefabricated component, which comprises two peripheral bodies which are arranged in parallel and serve as a peripheral protective layer of the prefabricated component, and a cavity structure is formed inside the peripheral bodies; the steel bar frame is arranged between the two peripheral bodies and makes contact with the peripheral bodies so as to enhance the overall strength and stability of the prefabricated part; wherein the steel bar frame is composed of structural wall vertical bars, inclined web bars and horizontal bars to form a steel bar frame system so as to improve the structural performance. According to the cavity system connecting structure suitable for the concrete prefabricated part, the concrete quality problem caused by the fact that an existing cavity system prefabricated part is high in steel content, large in construction difficulty and insufficient in vibration is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, specifically is a kind of cavity system connecting structure suitable for concrete prefabricated component. BACKGROUND

[0002] With the pursuit of global construction industry to high efficiency, environmental protection, sustainable development deepening, as an innovative building model, fabricated building is rapidly popularizing in the global range, and fabricated building is produced, processed and assembled in factory in advance, and then prefabricated component of finished product or semi-finished product is transported to construction site to be quickly assembled, which greatly improves the efficiency and quality control level of building construction, and prefabricated component is the core component of fabricated building, and its variety is various, including but not limited to prefabricated wall, prefabricated floor, prefabricated stair, prefabricated balcony etc., these components are produced in standardization and refinement in factory using advanced production equipment and technology, so as to ensure the dimensional accuracy, quality stability and performance superiority of component.

[0003] Cavity (superimposed, formwork etc.) system aims to improve structural efficiency and space utilization in building engineering, but it faces technical problems such as high steel content, dense reinforcement arrangement and difficult vibration in implementation process, high steel content increases cost, dense reinforcement arrangement aggravates construction difficulty, limits vibration operation space, and easily causes internal defects of concrete such as hollow, honeycomb and pitted surface, cavity structure particularity limits vibration operation, bottom and corner vibration is insufficient, which affects the compactness and strength of concrete, and may cause quality problems such as formwork rising and deformation, these problems not only damage engineering quality, but also increase later rectification cost and time, prolong engineering cycle, improve manpower and material resources investment, and constitute double pressure on economic benefit and social benefit of project. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] The utility model aims at solving the concrete quality problem caused by high steel content, great construction difficulty and insufficient vibration in existing cavity system prefabricated component, and provides a cavity system connecting structure suitable for concrete prefabricated component.

[0006] (II) technical scheme

[0007] The technical scheme for solving the above technical problem of the utility model is as follows:

[0008] A cavity system connecting structure suitable for concrete prefabricated component, comprising:

[0009] Peripheral body, the number is two and is mutually parallel, and it is as the peripheral protective layer of prefabricated component, and cavity structure is formed in its inside;

[0010] The steel reinforcement frame is arranged between the two peripheral bodies and in contact with the peripheral bodies to enhance the overall strength and stability of the prefabricated component.

[0011] The steel reinforcement frame is composed of structural wall vertical reinforcement, inclined web reinforcement and horizontal reinforcement, forming a steel reinforcement frame system to improve the structural performance.

[0012] On the basis of the above technical scheme, the utility model further can make improvement as follows.

[0013] Further, the structural wall vertical reinforcement is arranged linearly along the vertical direction of the prefabricated component as the main load-bearing and supporting element of the structure, and the inclined web reinforcement intersects and connects with the structural wall vertical reinforcement to jointly build a stable support network in a three-dimensional space.

[0014] Further, the inclined web reinforcement is composed of continuous and angle not more than ninety degrees bending reinforcement segments, forming a continuous connection path with wave crest and wave trough, and each inclined web reinforcement is connected with at least two structural wall vertical reinforcements.

[0015] Further, the number of the horizontal reinforcement is set to be multiple, and the horizontal reinforcement is arranged on the structural wall vertical reinforcement in an interval and connected with the structural wall vertical reinforcement, thereby building an enhanced structural layer in the horizontal direction to enhance the stability and load-bearing capacity of the overall structure.

[0016] Further, the wave crest and wave trough of the inclined web reinforcement are arranged in a curved shape, forming a foot structure, and the foot structure is in contact with the peripheral body to increase the contact area between the inclined web reinforcement and the peripheral body.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

[0019] Firstly, by adopting two peripheral bodies parallel to each other as the peripheral protection layer of the prefabricated component, and forming a cavity structure inside, this design not only optimizes the overall structure of the prefabricated component, but also makes the subsequent construction process more convenient, avoiding the increase in construction difficulty caused by dense steel bars, secondly, the steel bar framework is composed of structural wall vertical bars, inclined web bars and horizontal bars, this steel bar framework system design significantly reduces the steel content of the prefabricated component, by optimizing the arrangement form and cross-sectional size of the steel bars, not only ensures the strength and stability requirements of the prefabricated component, but also effectively reduces the material cost and improves the economic benefit, at the same time, the design of the steel bar framework also reduces the self-weight of the prefabricated component, which is convenient for transportation and installation, further improves the construction efficiency, furthermore, the setting of the steel bar framework enhances the overall strength and stability of the prefabricated component, the structural wall vertical bars as the main bearing component, bear the main load of the prefabricated component, the inclined web bars and horizontal bars form a stable support system through reasonable arrangement, effectively resist the influence of external load and internal stress on the prefabricated component, this design not only improves the bearing capacity of the prefabricated component, but also enhances its anti-deformation and anti-cracking performance, ensures the safety and durability of the prefabricated component in the long-term use, finally, since the steel bar framework is in close contact with the peripheral body, a good overall stress system is formed, which can more effectively transfer the vibration force during concrete pouring and vibration, ensuring the internal compactness of the concrete without defects, especially in the bottom and corner areas of the cavity structure, through the support and constraint effect of the steel bar framework, the internal defects of the concrete caused by insufficient vibration are effectively avoided, improving the concrete quality of the prefabricated component. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall connecting structure of the utility model;

[0021] Figure 2 It is a schematic diagram of one of the structures of the inclined web bar of the utility model;

[0022] Figure 3 It is a schematic diagram of another structure of the inclined web bar of the utility model;

[0023] Figure 4 It is a schematic diagram of another structure of the inclined web bar of the utility model.

[0024] In the figure: 1, peripheral body; 2, steel bar framework; 201, structural wall vertical bar; 202, inclined web bar; 203, horizontal bar. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0026] In combination with Figures 1-4 The utility model discloses a cavity system connecting structure suitable for concrete prefabricated component, comprising:

[0027] The two peripheral bodies 1 are arranged in parallel and serve as the peripheral protection layer of the prefabricated component, and a cavity structure is formed in the peripheral bodies 1.

[0028] The steel reinforcement frame 2 is arranged between the two peripheral bodies 1 and in contact with the peripheral bodies 1 to enhance the overall strength and stability of the prefabricated component.

[0029] The steel reinforcement frame 2 is composed of structural wall vertical reinforcement 201, inclined web reinforcement 202 and horizontal reinforcement 203, and forms a steel reinforcement frame system to improve the structural performance.

[0030] In the production process of the prefabricated component, first, two peripheral bodies 1 are prepared, which are arranged in parallel with each other, serve as the outer protective layer of the prefabricated component, and have an inner space for filling concrete and forming a cavity structure after filling. The cavity design not only helps to reduce the self weight of the prefabricated component, but also improves the heat insulation performance of the component to a certain extent. Next, a steel reinforcement frame 2 is arranged between the two peripheral bodies 1. The steel reinforcement frame 2 is composed of structural wall vertical reinforcement 201, inclined web reinforcement 202 and horizontal reinforcement 203. The three components together form a stable steel reinforcement frame system. The structural wall vertical reinforcement 201, as the main bearing and supporting element, is arranged along the height direction of the prefabricated component, thereby ensuring the vertical stability and bearing capacity of the component. The inclined web reinforcement 202 forms a stable support structure between the structural wall vertical reinforcement 201 through continuous bending arrangement, thereby effectively resisting horizontal load and shear force. The horizontal reinforcement 203 is arranged along the width direction of the prefabricated component, thereby further enhancing the integrity and stability of the steel reinforcement frame. The steel reinforcement frame 2 is in close contact with the peripheral body 1, so as to ensure that no displacement or deformation occurs during the concrete pouring process. The close contact not only helps to transfer the strength and stability of the steel reinforcement frame to the concrete, but also forms a whole stress system after the concrete solidifies, thereby jointly bearing external load and internal stress. During the concrete pouring process, the concrete is uniformly filled into the cavity between the peripheral body 1 and the steel reinforcement frame 2. Through appropriate vibration process, the concrete inside is ensured to be dense and defect-free, and good adhesion is formed between the concrete and the steel reinforcement frame 2, so that the concrete can also be fully vibrated at the bottom and corner areas of the cavity structure, thereby avoiding the problem of internal defects of the concrete caused by insufficient vibration. The prefabricated component not only has excellent mechanical properties, stability and durability, but also realizes the optimization of material use and the reduction of cost, thereby providing strong support for the development of fabricated buildings. In the embodiment, the steel reinforcements can be connected together by welding or steel wire binding. In the embodiment, the structural wall vertical reinforcement 201 and the inclined web reinforcement 202 are connected by welding, and the horizontal reinforcement 203 and the structural wall vertical reinforcement 201 are connected by welding. The whole steel reinforcement frame 2 can flexibly control the stiffness, strength and stability of the steel reinforcement frame. In the areas requiring higher bearing capacity, the density and intersection points of the steel reinforcements can be increased to form a more dense support network. In the areas with relatively low structural requirements, the arrangement spacing can be appropriately relaxed to save materials and reduce the self weight of the structure. In use, the peripheral body 1 is a structural prefabricated wall, the structural prefabricated wall and the steel reinforcement frame 2 form the whole concrete prefabricated component wall, and the peripheral body 1 can be a formwork protective layer, which can be used as a formwork shell.

[0031] In a preferred embodiment, the utility model can be further configured as: Figures 1 to 4As shown in the figure; the structural wall vertical reinforcement 201 is arranged linearly along the vertical direction of the prefabricated component as the main load-bearing and supporting element of the structure, and the inclined web reinforcement 202 intersects and connects with the structural wall vertical reinforcement 201 to jointly build a stable support network in a three-dimensional space. During the manufacturing process of the prefabricated component, the structural wall vertical reinforcement 201 is arranged linearly along the vertical direction of the prefabricated component as the core component of the steel reinforcement frame 2. This linear arrangement ensures that the structural wall vertical reinforcement 201 can directly bear the vertical load from above the component and effectively transmit it to the foundation or supporting structure below, thereby becoming the main load-bearing and supporting element in the prefabricated component structure. At the same time, the inclined web reinforcement 202 is designed to intersect and connect with the structural wall vertical reinforcement 201. The arrangement direction of the inclined web reinforcement 202 is usually at a certain angle with the structural wall vertical reinforcement 201. This angle design enables the inclined web reinforcement 202 to effectively resist external forces such as wind load, seismic force, and stress generated inside the component due to temperature changes, shrinkage and other factors in the horizontal direction. Through the intersection and connection with the structural wall vertical reinforcement 201, the inclined web reinforcement 202 not only enhances the stability of the steel reinforcement frame in the horizontal direction, but also forms a stable support network in the three-dimensional space with the entire steel reinforcement frame system. This stable support network in the three-dimensional space, through the synergistic effect of the structural wall vertical reinforcement 201 and the inclined web reinforcement 202, jointly bears various loads and stresses that the prefabricated component may encounter during use. It ensures the stability and safety of the prefabricated component in vertical, horizontal and torsional directions, and improves the overall load-bearing capacity and seismic performance of the component.

[0032] The utility model discloses in a preferable embodiment can be further configured as: Figures 1 to 4 As shown in the figure; the inclined web reinforcement 202 is composed of continuous and angle not more than ninety degrees of bent reinforcement section, forms the continuous connection path with the wave crest and the wave trough, and each inclined web reinforcement 202 at least is connected with two structural wall vertical reinforcements 201, and the inclined web reinforcement 202 forms a continuous connection path with obvious wave crest and wave trough characteristics through a series of smooth transition bending, and this unique path not only increases the bonding area between the inclined web reinforcement 202 and the concrete, but also effectively disperses the stress and shear force generated by the structure wall when bearing external force through its continuous wave structure. Each inclined web reinforcement 202 at least is connected with two structural wall vertical reinforcements 201, and this design ensures that the inclined web reinforcement 202 can act as an effective force transmission member to effectively transmit the load or shear force from the top of the structure wall to the vertical reinforcement 201 at the bottom of the structure wall through its continuous wave path, and then to the foundation of the entire structure wall. This connection mode not only improves the overall shear bearing capacity of the structure wall, but also enhances its stability and safety under dynamic load such as earthquake.

[0033] The utility model discloses in a preferable embodiment can be further configured as: Figures 1 to 4As shown in the figure; the number of horizontal bars 203 is set to be multiple, the horizontal bars 203 are arranged on the structural wall vertical bars 201 at intervals and are connected with the structural wall vertical bars 201, so as to build a reinforced structural layer in the horizontal direction, so as to enhance the stability and bearing capacity of the whole structure, the multiple horizontal bars 203 are arranged carefully, and they are arranged in parallel at intervals above the structural wall vertical bars 201, so as to form a firm horizontal grid, the horizontal bars 203 not only bear the horizontal shear force generated by the horizontal direction load such as wind force and earthquake wave respectively, but also form a closely cooperative stress system through the mutual connection with the structural wall vertical bars 201, in this structure, the horizontal bars 203 and the structural wall vertical bars 201 bear and transfer the load together, the horizontal bars 203 effectively limit the displacement of the structural wall in the horizontal direction, and enhance the integrity of the wall body, meanwhile, the grid-shaped structural layer also improves the crack resistance and durability of the wall body, because even if the wall body produces a small crack under the action of external force, the horizontal bars 203 can prevent the further expansion of the crack through the strong constraint force, so as to maintain the integrity and stability of the wall body.

[0034] The utility model discloses a further configuration in a preferred embodiment can be: Figures 1 to 4 As shown in the figure; the peak and valley positions of the inclined web bars 202 are arranged in a curved shape, forming a foot structure, which is in contact with the peripheral body 1 to increase the contact area between the inclined web bars 202 and the peripheral body 1, in the concrete pouring process, the peripheral body 1 is used as a support and shaping tool, and its stability is directly related to the dimensional accuracy and surface quality of the concrete member, while the inclined web bars 202 are important components connecting the two peripheral bodies 1, and their positioning accuracy and close contact with the peripheral body are also crucial, by designing the peak and valley positions of the inclined web bars 202 to be curved, these foot structures can be more closely contacted with the peripheral body 1, so as to effectively prevent the displacement or deformation of the inclined web bars 202 in the concrete pouring process, at the same time, the increased contact area also enhances the friction between the inclined web bars 202 and the peripheral body 1, which helps to further fix the position of the inclined web bars 202 and keep them stable during the concrete pouring process, in addition, the larger contact area also means that the inclined web bars 202 can better transfer the stress to the peripheral body 1 and then to the whole structure system, the included angle between the foot of the inclined web bar 202 and the horizontal steel bar is also Figure 4The degree range of the middle alpha is set to be between 1° and 359°, which can adapt to various structural layouts and stress conditions, so as to ensure that the inclined web can effectively transfer and disperse the shear force and enhance the overall stability of the structure, and the 90° angle is the optimal choice, because when the inclined web intersects with the horizontal steel at 90°, the two can form the most direct and effective mechanical connection, maximize the shearing effect of the inclined web, and reduce the stress concentration phenomenon caused by the angle deviation, which helps to improve the overall strength and durability of the structure, and meanwhile, the inclined web 202 has three forms, two foot structures downward as shown in Figure 2 , two foot structures upward as shown in Figure 3 , and two foot structures one above the other as shown in Figure 4 .

[0035] In addition, in order to further improve the crack resistance and overall stability of the inclined web 202, a layer of crack prevention net can be added at the bending part of the inclined web 202, and the crack prevention net can be added or removed according to the actual use, the existence of the crack prevention net is a fine net, which tightly binds the possible small cracks in the concrete, prevents further development, and through its high strength and excellent toughness, enhances the interfacial adhesion between the inclined web and the concrete, so that they work more closely together, the material selection of the crack prevention net is also very important, and the specific material can be made of fiber net, glass fiber net, metal net and other materials that can achieve the same effect, these materials not only can effectively prevent the concrete from cracking, but also can provide additional tensile support when the crack appears, enhance the overall structure of the prefabricated structure, limit the expansion range of the crack, so as to protect the structure from further damage, in addition, these materials also have good environmental adaptability, can maintain stable performance in various harsh conditions, ensure the safety and durability of the structure.

[0036] The specific working principle of the concrete prefabricated component cavity system connecting structure is as follows:

[0037] Firstly, two outer peripheral bodies 1 arranged in parallel with each other are prepared, the two outer peripheral bodies 1 will serve as the outer protective layer of the prefabricated component, and the internal space will be filled with concrete to form a cavity structure, and the installation of the outer peripheral body 1 needs to ensure its parallelism and stability, so as to facilitate the smooth progress of the subsequent steps.

[0038] Then, the reinforcing frame 2 is installed between the peripheral bodies 1, the reinforcing frame 2 is composed of structural wall vertical bars 201, oblique web bars 202 and horizontal bars 203, the structural wall vertical bars 201 are arranged linearly along the vertical direction of the prefabricated component as the main load-bearing and supporting elements of the structure, the oblique web bars 202 intersect and connect with the structural wall vertical bars 201, the oblique web bars 202 are composed of continuous and angle not greater than ninety degrees bending reinforcing bar sections, forming a continuous connecting path with wave crests and wave troughs, each oblique web bar 202 intersects with at least two structural wall vertical bars 201, and the wave crests and wave troughs of the oblique web bars 202 are arranged in a curved shape, forming a foot structure, the foot structure is in contact with the peripheral bodies 1 to increase the contact area between the oblique web bars 202 and the peripheral bodies 1;

[0039] Subsequently, a plurality of horizontal bars 203 are arranged at intervals above the structural wall vertical bars 201, the horizontal bars 203 are connected with the structural wall vertical bars 201, thereby constructing a reinforced structural layer in the horizontal direction, which not only enhances the horizontal stability of the overall structure, but also improves the load-bearing capacity of the component;

[0040] After the reinforcing frame 2 is installed, the concrete pouring work is started, the concrete is uniformly filled into the cavity between the peripheral bodies 1 and the reinforcing frame 2, and through appropriate vibrating process, the internal compactness of the concrete is ensured without defects, and good adhesion is formed with the reinforcing frame 2, the prefabricated component not only has excellent mechanical properties, stability and durability, but also realizes the optimization of material use and cost reduction, finally, the prefabricated component will be transported to the construction site for installation and use.

[0041] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations have any such actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.

[0042] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cavity system connection structure for a concrete precast member, characterized by, The utility model relates to a prefabricated component, which comprises: a plurality of peripheral bodies (1) arranged in parallel, which form a cavity structure as a peripheral protective layer of the prefabricated component; a steel frame (2) arranged between the peripheral bodies (1) and in contact with the peripheral bodies (1) to enhance the overall strength and stability of the prefabricated component; wherein the steel frame (2) is composed of structural wall vertical reinforcement (201), inclined web reinforcement (202) and horizontal reinforcement (203) to form a steel frame system to improve the structural performance.

2. The cavity system connecting structure for the precast concrete members according to claim 1, wherein The structural wall vertical reinforcement (201) is arranged linearly along the vertical direction of the prefabricated component as the main load-bearing and supporting element of the structure, and the inclined web reinforcement (202) intersects and connects with the structural wall vertical reinforcement (201) to form a stable support network in a three-dimensional space.

3. A cavity system connecting structure for a concrete precast unit according to claim 2, wherein The inclined web reinforcement (202) is composed of continuous bent reinforcement segments with an angle not greater than 90 degrees to form a continuous connection path with wave crests and troughs, and each inclined web reinforcement (202) is connected with at least two structural wall vertical reinforcements (201).

4. The cavity system connecting structure for the precast concrete members according to claim 1, wherein The horizontal reinforcement (203) is arranged in multiple numbers on the structural wall vertical reinforcement (201) and connected with the structural wall vertical reinforcement (201) to form an enhanced structural layer in the horizontal direction to enhance the stability and load-bearing capacity of the overall structure.

5. The cavity system connecting structure for the precast concrete members according to claim 3, wherein The wave crests and troughs of the inclined web reinforcement (202) are arranged in a curved shape to form a foot structure in contact with the peripheral body (1) to increase the contact area between the inclined web reinforcement (202) and the peripheral body (1).

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