Alkali-activated concrete prefabricated part
By combining steel bar components, prestressed steel bars and reinforcement components in concrete prefabricated components, the problems of insufficient load capacity and structural inhomogeneity are solved, bending, shear and seismic performance are improved, and energy efficiency is improved through thermal insulation panels.
Patent Information
- Application Number
- CN202323473580.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-19
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-19
AI Technical Summary
In the absence of other reinforcement components, existing concrete prefabricated components lead to insufficient load capacity and structural unevenness, which may cause safety hazards, and relying solely on pre-embedded steel bars cannot effectively utilize prestress and other strengthening measures.
The prefabricated concrete components are adopted, combined with steel bar components, prestressed steel bars and reinforced steel bar components, and the bending, shear and seismic properties of the components are enhanced through the combination of cross-connected steel bar structures and prestressed steel bars, and improved through insulation boards. Insulation and insulation effect.
It effectively improves the load-bearing capacity and overall stiffness of concrete components, increases the stability and safety of the structure, reduces the thickness and material use of concrete, and reduces energy consumption and self-weight.
Smart Images
Figure CN222227730U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of prefabricated component equipment, in particular to an alkali-activated concrete prefabricated component. Background Art
[0002] Precast concrete components are concrete components that are prefabricated in factories at construction sites. Steel bars, as reinforcement materials for concrete components, can significantly enhance the tensile and bearing capacity of components. Concrete itself is weak and easily damaged by tensile forces, while the addition of steel bars can effectively resist tensile forces and improve the overall strength and stability of components. However, in actual use, existing precast concrete components have the problem that only pre-embedded steel bar components in precast concrete components may limit the bearing capacity of components. This is because other reinforcement components are lacking. The lack of other reinforcement components will not only lead to the above problems, but also may lead to uneven force on components if only pre-embedded steel bar components are embedded. First of all, steel bars increase the strength and stability of components by embedding them, but if only steel bar components are embedded, other important reinforcement components will be ignored. This limitation may lead to insufficient overall strength of components, which cannot meet design requirements and may even cause structural safety hazards.
[0003] Secondly, the arrangement position and quantity of the steel bars may not achieve the ideal uniform distribution, which may lead to weak parts of the structure when bearing loads, causing stress concentration and possible structural damage. In addition, since only the steel bar components are embedded, other important strengthening measures, such as prestressing, cannot be effectively applied and utilized, so a new structure needs to be proposed to solve the above technical problems. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model aims to provide an alkali-activated concrete prefabricated component to solve the problems raised in the above-mentioned background technology.
[0005] The utility model is realized through the following technical scheme: an alkali-activated concrete prefabricated component, comprising: a concrete body, a steel bar assembly and prestressed steel bars, the front side surface and the right rear side surface of the concrete body are respectively installed with a heat preservation plate, the lower half, the front half and the rear half of the concrete body are pre-buried with a group of steel bar assemblies, the steel bar assembly comprises vertical steel bars and horizontal steel bars, the vertical steel bars and the horizontal steel bars are both provided in plurality, the plurality of the vertical steel bars and the horizontal steel bars are cross-connected, a reinforcing bar assembly is installed inside the concrete body, the reinforcing bar assembly comprises two reinforcing bar bodies, the two reinforcing bar bodies are connected to each other in an X shape, a lifting ring is installed at the bottom inside the concrete body, a plurality of slots are evenly opened on the upper side surface of the concrete body, a steel plate is pre-buried on the lower side surface of the concrete body, and four prestressed steel bars are pre-buried inside the concrete body.
[0006] As a preferred embodiment, the vertical steel bars and the horizontal steel bars have the same structure and diameter, the length of the vertical steel bars is smaller than the horizontal steel bars, a plurality of the vertical steel bars and the horizontal steel bars are interconnected to form a mesh steel bar structure, and the three steel bar assemblies have the same structure. The embedded steel bar assembly can effectively enhance the bearing capacity and overall stiffness of the concrete component, improve the bending, shear and seismic performance of the structure, and increase the stability and safety of the structure.
[0007] As a preferred embodiment, the cross-section of the concrete body is a U-shaped structure with the opening facing upward, and an insulation board is symmetrically fixed to the front surface and the right surface of the concrete body by screws. The two insulation boards have the same structure and are made of polystyrene.
[0008] As a preferred embodiment, a lifting ring is installed at each of the four corners of the bottom of the concrete body, and the four lifting rings have the same structure. A prestressed steel bar is embedded in the upper left corner, lower left corner, upper right corner and lower right corner of the left surface of the concrete body. The four prestressed steel bars can introduce compressive stress in the concrete member by applying prestress, reduce or offset the tensile stress when the concrete is subjected to stress, so that the structure can withstand a larger load and span in the working state, reduce the thickness and load of the concrete, save materials and reduce its own weight.
[0009] As a preferred embodiment, the four prestressed steel bars have the same structure, and a plurality of slots are symmetrically and evenly formed on the front edge and the rear edge of the upper surface of the concrete body, and bolt holes are formed on the inner walls of the slots.
[0010] As a preferred embodiment, the position of the steel plate on the lower surface of the concrete body is aligned with the position of the slot, bolt holes are provided on the surface of the steel plate, every two concrete bodies are fixed to each other by the slot, the steel plate and high-strength bolts, and sealing foam is provided at the abutment of every two concrete bodies.
[0011] As a preferred embodiment, the reinforcing rib assemblies are provided in two groups, and the two groups of the reinforcing rib assemblies have the same structure. The reinforcing rib assemblies are in an X-shaped structure and are fixed to the front inner wall and the rear inner wall inside the concrete body by screws. The concrete body is made of a mixture of alkali activator and concrete.
[0012] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: by arranging steel bar assemblies and prestressed steel bars, three groups of steel bar assemblies are arranged, which are respectively embedded in the interior of the concrete body, and a prestressed steel bar is respectively embedded in the upper left corner, lower left corner, upper right corner and lower right corner of the left surface of the concrete body. The embedded steel bar assembly can effectively enhance the bearing capacity and overall rigidity of the concrete member, improve the bending, shear and seismic performance of the structure, and increase the stability and safety of the structure. At the same time, the four prestressed steel bars can introduce compressive stress in the concrete member by applying prestress, reduce or offset the tensile stress when the concrete is subjected to force, so that the structure can withstand a larger load and span in the working state, reduce the thickness and load of the concrete, save materials and reduce its own weight.
[0013] By setting a reinforcement rib assembly and an insulation board, the reinforcement rib assembly includes a reinforcement rib body, the two reinforcement rib bodies are in an X-shaped structure, and two reinforcement rib assemblies are installed inside the concrete body, and an insulation board is respectively installed on the front side surface and the rear side surface of the concrete body. The reinforcement rib assembly, prestressed steel bars and steel bar assemblies can effectively increase the bearing capacity and overall stiffness of the precast concrete components, improve the bending, shear and seismic performance of the structure, and increase the stability and safety of the structure. At the same time, the insulation board can effectively insulate and preserve heat, reduce heat transfer, reduce energy consumption, and improve the energy efficiency of the building. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0015] Figure 1 The utility model is a schematic diagram of the overall structure of an alkali-activated concrete prefabricated component.
[0016] Figure 2 The utility model is a schematic diagram of a steel bar assembly of an alkali-activated concrete prefabricated component.
[0017] Figure 3 The utility model is a schematic diagram of a steel plate of an alkali-activated concrete prefabricated component.
[0018] In the figure, 100-concrete body, 101-slot, 110-insulation board, 120-prestressed steel bar, 130-hanging ring, 140-steel plate;
[0019] 200- horizontal reinforcement, 210- vertical reinforcement;
[0020] 300-Reinforcement rib body. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figures 1 to 3 The utility model provides a technical solution: an alkali-activated concrete prefabricated component, comprising: a concrete body 100, a steel bar assembly and a prestressed steel bar 120, the front surface and the right rear surface of the concrete body 100 are respectively installed with an insulation board 110, the lower half, the front half and the rear half of the concrete body 100 are pre-buried with a group of steel bar assemblies, the steel bar assembly comprises vertical steel bars 210 and horizontal steel bars 200, the vertical steel bars 210 and the horizontal steel bars 200 are provided with a plurality of, the plurality of vertical steel bars 210 and the horizontal steel bars 200 are cross-connected, the interior of the concrete body 100 is installed with a reinforcing bar assembly, the reinforcing bar assembly comprises two reinforcing bar bodies 300, the two reinforcing bar bodies 300 are connected to each other in an X shape, a lifting ring 130 is installed at the bottom of the interior of the concrete body 100, a plurality of slots 101 are evenly opened on the upper surface of the concrete body 100, a steel plate 140 is pre-buried on the lower surface of the concrete body 100, and four prestressed steel bars 120 are pre-buried in the interior of the concrete body 100.
[0023] See also Figure 1 , Figure 2 , Figure 3 As an embodiment of the present utility model: the vertical steel bars 210 and the horizontal steel bars 200 have the same structure and diameter, the length of the vertical steel bars 210 is shorter than the horizontal steel bars 200, a plurality of vertical steel bars 210 and horizontal steel bars 200 are interconnected to form a mesh steel bar structure, and the three steel bar components have the same structure;
[0024] The cross section of the concrete body 100 is a U-shaped structure with the opening upward. A heat preservation board 110 is symmetrically fixed to the front surface and the right surface of the concrete body 100 by screws. The two heat preservation boards 110 have the same structure and are made of polystyrene.
[0025] A lifting ring 130 is installed at each of the four corners of the bottom of the concrete body 100. The four lifting rings 130 have the same structure. A prestressed steel bar 120 is embedded in the upper left corner, lower left corner, upper right corner and lower right corner of the left surface of the concrete body 100.
[0026] During use, when external load acts on the component (concrete body 100), the concrete body 100 is subjected to tensile force, and the steel bar assembly is embedded into the concrete body 100, and is tightly combined with the concrete, so that the steel bar assembly bears most of the tensile force in the tensile area, effectively preventing the concrete from cracking and breaking. At the same time, when the concrete body 100 is poured, the prestressed steel bars 120 will be pre-tightened and then anchored at both ends of the left surface and the right surface of the concrete body 100, so that the prestressed steel bars 120 are in a prestressed state, so that the concrete body 100 can provide greater bending and bearing capacity when equipped with the prestressed steel bars 120 (the specific cross-section of the prestressed steel bars 120, the size and direction of the prestress will change according to actual conditions, and will not be repeated here).
[0027] See also Figure 1 , Figure 2 , Figure 3 As an embodiment of the present invention: four prestressed steel bars 120 have the same structure, and a plurality of slots 101 are symmetrically and evenly provided on the front edge and the rear edge of the upper surface of the concrete body 100, and bolt holes are provided on the inner wall of the slots 101. When it is necessary to install two concrete bodies 100 together, the user can align the steel plate 140 on the lower surface of the upper concrete body 100 with the slots 101 on the upper surface of the lower concrete body 100, and then align and install the slots 101 and the steel plate 140, and then install high-strength bolts in the bolt holes, and then fix the two concrete bodies 100 together;
[0028] The position of the steel plate 140 on the lower surface of the concrete body 100 is aligned with the position of the slot 101. Bolt holes are provided on the surface of the steel plate 140. Every two concrete bodies 100 are fixed to each other through the slot 101, the steel plate 140 and high-strength bolts. A sealing foam is provided at the abutment of every two concrete bodies 100.
[0029] Two groups of reinforcing rib assemblies are provided, and the two groups of reinforcing rib assemblies have the same structure. The reinforcing rib assemblies are in an X-shaped structure and are fixed to the front inner wall and the rear inner wall inside the concrete body 100 by screws. The concrete body 100 is made of a mixture of an alkali activator and concrete.
[0030] During use, when the concrete body 100 is subjected to external force, the steel bar assembly and the prestressed steel bar 120 will first offset the external force, and then the reinforcing bar assembly installed inside the concrete body 100 can effectively increase the bearing capacity and overall stiffness of the precast concrete component, improve the bending, shear and seismic performance of the structure, and increase the stability and safety of the structure. Since the reinforcing bar assembly is in an X-shaped structure, the reinforcing bar body 300 in the X-shaped structure can effectively resist the bending force caused by the lateral load and enhance the bending bearing capacity of the component. At the same time, the insulation board 110 can effectively insulate and keep warm, reduce heat transfer, reduce energy consumption, and improve the energy efficiency of the building.
[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An alkali-activated concrete prefabricated component, comprising: A concrete main body (100), a steel bar assembly, and prestressed steel bars (120), characterized in that a thermal insulation board (110) is installed on the front surface and the right rear surface of the concrete main body (100) respectively, and a group of steel bar assemblies are embedded inside the lower half, the front half, and the rear half of the concrete main body (100), and the steel bar assembly includes vertical steel bars (210) and horizontal steel bars (200); A plurality of the vertical steel bars (210) and the horizontal steel bars (200) are provided, and the plurality of vertical steel bars (210) and the horizontal steel bars (200) are cross-connected in a cross shape. A reinforcing bar assembly is installed inside the concrete main body (100), and the reinforcing bar assembly includes two reinforcing bar bodies (300), and the two reinforcing bar bodies (300) are connected to each other in an X shape; A lifting ring (130) is installed at the bottom inside the concrete main body (100), a plurality of card slots (101) are evenly opened on the upper surface of the concrete main body (100), a steel plate (140) is embedded on the lower surface of the concrete main body (100), and four prestressed steel bars (120) are embedded inside the concrete main body (100).
2. The alkali-activated concrete prefabricated component according to claim 1, characterized in that: The vertical steel bars (210) and the horizontal steel bars (200) have the same structure and diameter, the length of the vertical steel bars (210) is less than that of the horizontal steel bars (200), and the plurality of vertical steel bars (210) and the horizontal steel bars (200) are connected to form a mesh steel bar structure, and the three steel bar assemblies have the same structure.
3. The alkali-activated concrete prefabricated component according to claim 2, characterized in that: The cross section of the concrete main body (100) is in a C-shaped structure with an upward opening. A thermal insulation board (110) is symmetrically fixed on the front surface and the right surface of the concrete main body (100) by screws. The two thermal insulation boards (110) have the same structure, and the material of the thermal insulation board (110) is polystyrene.
4. The alkali-activated concrete prefabricated component according to claim 3, characterized in that: A lifting ring (130) is installed at each of the four corners at the bottom inside the concrete main body (100). The four lifting rings (130) have the same structure. A prestressed steel bar (120) is respectively embedded through the upper left corner, the lower left corner, the upper right corner, and the lower right corner of the left surface of the concrete main body (100).
5. The alkali-activated concrete prefabricated component according to claim 4, characterized in that: The four prestressed steel bars (120) have the same structure. A plurality of card slots (101) are symmetrically and evenly opened on the front edge and the rear edge of the upper surface of the concrete main body (100), and bolt holes are opened on the inner wall of the card slots (101).
6. The alkali-activated concrete prefabricated component according to claim 5, characterized in that: The position of the steel plate (140) on the lower surface of the concrete main body (100) is aligned with the position of the card slot (101). Bolt holes are opened on the surface of the steel plate (140). Every two concrete main bodies (100) are fixed to each other through the card slot (101), the steel plate (140), and high-strength bolts. A sealing foam rubber is provided at the abutting portion of every two concrete main bodies (100).
7. The alkali-activated concrete prefabricated component according to claim 1, characterized in that: Two groups of reinforcing rib assemblies are provided, and the two groups of reinforcing rib assemblies have the same structure. The reinforcing rib assemblies are in an X-shaped structure and are fixed to the front inner wall and the rear inner wall inside the concrete body (100) by screws. The concrete body (100) is made by mixing an alkali activator and concrete.