Mass concrete anti-cracking structure suitable for complex environment
By installing the side plates, top plates and sealing plates of polystyrene plates on both sides of large-volume concrete blocks, and using the connection between bolts and threaded sleeves to form a good insulation structure, the crack problem caused by the temperature difference of concrete in winter construction is solved, and the integrity and durability of concrete are improved.
Patent Information
- Application Number
- CN202422080728.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-27
AI Technical Summary
In concrete construction, especially in winter environments, due to the low external temperature, heat generated in the concrete due to the hydration reaction, resulting in a significant increase in the temperature difference between the concrete surface and the inside, which in turn generates tensile stress during the cooling process, resulting in the emergence of concrete cracks.
A large-volume concrete crack-proof structure suitable for complex environments was designed. By embedding threaded sleeves on both sides of the large-volume concrete block and installing the side plates, top plates and sealing plates of polystyrene plates on the outer wall, the side plates are installed on the concrete block by connecting bolts and thread sleeves to form a good insulation structure to reduce the temperature difference and temperature gradient.
Through the insulation effect of this structure, the temperature difference between the surface and interior of large-volume concrete blocks is reduced, the temperature gradient is reduced, the generation of cracks is reduced, and the integrity and durability of the concrete structure are improved.
Smart Images
Figure CN223034010U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of construction, and in particular relates to a large-volume concrete anti-cracking structure suitable for complex environments. Background Art
[0002] Mass concrete usually refers to a concrete structure with thick structure, large amount of concrete, complex engineering conditions, high construction technology requirements, and the control target is to reduce the temperature cracks caused by hydration heat. Use cement with low hydration heat, such as slag silicate cement, and add appropriate amount of fly ash and other admixtures to reduce cement consumption and reduce hydration heat. At the same time, use well-graded aggregates to improve the workability of concrete.
[0003] In concrete construction, especially in winter, the temperature difference between the surface and the interior of the concrete increases significantly due to the low outside temperature and the heat generated by the hydration reaction inside the concrete. The existence of this gradient temperature difference causes the surface of the concrete to shrink due to the rapid cooling of the cold air during the cooling process, while the interior remains in a relatively expanded state due to the high temperature. This inconsistent shrinkage between the inside and the outside will generate tensile stress inside the concrete. When the tensile stress exceeds the tensile strength of the concrete, it will cause cracks on the surface or inside the concrete.
[0004] The appearance of cracks will not only affect the integrity and durability of the concrete structure, but also reduce its bearing capacity, posing a potential threat to the quality of the project. Therefore, it is necessary to design a concrete structure that can be insulated to overcome the above technical defects. Utility Model Content
[0005] The purpose of the utility model is to provide a large-volume concrete anti-cracking structure suitable for complex environments, aiming to solve the problem that in concrete construction, especially in winter environments, the temperature difference between the surface and the interior of the concrete increases significantly due to the low outside temperature and the heat generated by the hydration reaction inside the concrete. The existence of this gradient temperature difference causes the surface of the concrete to shrink due to the rapid cooling of the cold air during the cooling process, while the interior remains in a relatively expanded state due to the high temperature. This inconsistent shrinkage between the inside and the outside will generate tensile stress inside the concrete. When the tensile stress exceeds the tensile strength of the concrete, cracks will occur on the surface or inside the concrete. The appearance of cracks will not only affect the integrity and durability of the concrete structure, but may also reduce its bearing capacity, posing a potential threat to the quality of the project.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-volume concrete anti-cracking structure suitable for complex environments, comprising a large-volume concrete block, wherein threaded sleeves are pre-embedded inside two sides of the large-volume concrete block;
[0007] Side plates are installed on the outer walls on both sides of the mass concrete block, a top plate is bonded to the tops of the two side plates, and a sealing plate is installed on the outer wall of one side of each side plate. The side plates, the top plate and the sealing plate are all polystyrene plates.
[0008] In order to keep the outer wall of the side plate flat, as a large-volume concrete crack prevention structure of the present utility model applicable to complex environments, preferably, three groups of rectangular openings are equidistantly arranged on the outer wall of the side away from the mass concrete block, and a sealing plate is respectively fitted and installed inside each group of rectangular openings.
[0009] In order to enable the side plate to be fixedly installed on the outer wall of the mass concrete block, as a large-volume concrete crack prevention structure of the present utility model applicable to complex environments, preferably, bolts are installed through the inner walls of the rectangular openings, and a rubber ring is fixedly sleeved on the outer wall of the end of each bolt. A round hole is provided on one side of the sealing plate, and one end of the round hole extending into the sealing plate communicates with an annular groove, and the annular groove is provided inside the sealing plate. Each bolt passes through the rectangular opening and the side plate and is threadedly connected with the corresponding threaded sleeve, and the side plate is installed on the mass concrete block through the connection between the bolt and the threaded sleeve.
[0010] In order to enable the sealing plate to maintain a relatively fixed connection structure when installed on the side plate, as a large-volume concrete crack prevention structure of the present utility model applicable to complex environments, preferably, each bolt and the rubber ring are sleeved in the corresponding round hole and annular groove, and an interference connection structure is formed between the rubber ring and the annular groove.
[0011] Compared with the prior art, the beneficial effects of the present utility model are:
[0012] The side plates are installed on both sides of the mass concrete block through the butt joint between the bolts and the threaded sleeves, and then the top plate is bonded to the tops of the two side plates. During actual use, the side plates and the top plate can play a good heat preservation effect on the mass concrete block, thereby reducing the temperature difference between the surface and the inside of the mass concrete block, reducing the temperature gradient, and reducing the generation of cracks. Description of the Drawings
[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:
[0014] Figure 1 is the front view structural schematic diagram of the present utility model;
[0015] Figure 2 is the distribution structural schematic diagram of the rectangular openings of the present utility model;
[0016] Figure 3It is a partial cross-sectional structural schematic diagram of a large-volume concrete block of the utility model;
[0017] Figure 4 This is a schematic diagram of the installation structure of the sealing plate and the threaded sleeve of the utility model;
[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of the annular groove of the utility model.
[0019] In the figure: 1, large concrete block; 101, rectangular opening; 2, side plate; 3, top plate; 4, sealing plate; 401, round hole; 402, annular groove; 5, bolt; 6, threaded sleeve; 7, rubber ring. DETAILED DESCRIPTION
[0020] 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 in 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.
[0021] See also Figures 1-5 , the utility model provides the following technical solutions: a large-volume concrete anti-cracking structure suitable for complex environments, comprising a large-volume concrete block 1, with threaded sleeves 6 pre-embedded inside both sides of the large-volume concrete block 1;
[0022] Side panels 2 are installed on the outer walls of both sides of the large concrete block 1, top panels 3 are bonded to the tops of the two side panels 2, and a sealing panel 4 is installed on the outer wall of one side of each side panel 2. The side panels 2, top panels 3 and sealing panels 4 are all polystyrene panels.
[0023] The large-volume concrete block 1 in the technical solution is used in a complex environment. For example, during construction in winter, the temperature difference between the surface and the interior of the large-volume concrete block 1 will increase the temperature gradient of the large-volume concrete block 1, making it easy for cracks to form in the large-volume concrete block 1.
[0024] To this end, the technical solution of the present invention is to assemble side panels 2 and top panels 3 on the top of both sides of the large-volume concrete block 1. This structure can effectively provide good thermal insulation effect for the large-volume concrete block 1 through the properties of the side panels 2, top panels 3 and sealing panels 4, thereby reducing the temperature difference between the surface and the interior of the large-volume concrete block 1, reducing the temperature gradient, and reducing the occurrence of cracks.
[0025] Preferably, three groups of rectangular openings 101 are equidistantly arranged on the outer wall of the side of the sealing plate 4 away from the large-volume concrete block 1, and a sealing plate 4 is respectively fitted and installed inside each group of rectangular openings 101. Bolts 5 are installed through the inner walls of the rectangular openings 101, and rubber rings 7 are fixedly sleeved on the outer walls of the ends of the bolts 5.
[0026] During specific use, the bolts 5 are passed through the side plates 2 from the rectangular openings 101 and connected to the threaded sleeves 6. When all the bolts 5 are docked with the corresponding threaded sleeves 6, the side plates 2 can be installed on the outer wall of the large-volume concrete block 1 at this time. After both side plates 2 are installed, glue is applied to the bottom of one side of the top plate 3, and then the side of the top plate 3 coated with glue is butted against the tops of the two side plates 2. Thus, the large-volume concrete block 1 can be wrapped inside the side plates 2 and the top plate 3 through this structure to achieve the heat preservation function.
[0027] Preferably, a round hole 401 is formed on one side of the sealing plate 4, and an annular groove 402 is communicated with the end of the round hole 401 extending into the sealing plate 4. The annular groove 402 is formed inside the sealing plate 4. Each bolt 5 passes through the rectangular opening 101 and the side plate 2 and is threadedly connected with the corresponding threaded sleeve 6. The side plate 2 is installed on the large-volume concrete block 1 through the connection between the bolt 5 and the threaded sleeve 6. Each bolt 5 and the rubber ring 7 are sleeved in the corresponding round hole 401 and annular groove 402, and an interference connection structure is formed between the rubber ring 7 and the annular groove 402.
[0028] During specific use, after the side plate 2 is installed on the large-volume concrete block 1, the sealing plate 4 is buckled into the corresponding rectangular opening 101 at this time, and the sealing plate 4 is firmly buckled into the inside of the rectangular opening 101 by force. In this way, an interference connection will be formed between the annular groove 402 and the corresponding rubber ring 7, so that the sealing plate 4 is fixed in the rectangular opening 101, and thus the surface of the side plate 2 can be kept relatively flat to improve the appearance beauty of the side plate 2.
[0029] When the large-volume concrete block 1 in this technical solution needs to be constructed with multiple blocks stacked in actual use, the top plate 3 only needs to be installed on the topmost large-volume concrete block 1 at this time.
[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A large-volume concrete anti-cracking structure suitable for complex environments, comprising a large-volume concrete block (1), characterized in that: Threaded sleeves (6) are pre-buried inside both sides of the large-volume concrete block (1); Side panels (2) are installed on the outer walls of both sides of the large-volume concrete block (1), a top panel (3) is bonded to the top of the two side panels (2), and a sealing panel (4) is installed on the outer wall of one side of each side panel (2), and the side panels (2), the top panel (3) and the sealing panel (4) are all polystyrene panels.
2. According to claim 1, a large-volume concrete anti-cracking structure suitable for complex environments is characterized by: Three groups of rectangular openings (101) are provided at equal intervals on the outer wall of the sealing plate (4) on the side away from the large concrete block (1), and a sealing plate (4) is respectively embedded and installed inside each group of the rectangular openings (101).
3. The large-volume concrete anti-cracking structure suitable for complex environments according to claim 2 is characterized by: A bolt (5) is installed through the inner wall of the rectangular opening (101), and a rubber ring (7) is fixedly sleeved on the outer wall of the end of the bolt (5).
4. The large-volume concrete anti-cracking structure suitable for complex environments according to claim 1 is characterized by: A circular hole (401) is provided on one side of the sealing plate (4); one end of the circular hole (401) extending to the interior of the sealing plate (4) is connected to an annular groove (402); and the annular groove (402) is provided inside the sealing plate (4).
5. The large-volume concrete anti-cracking structure suitable for complex environments according to claim 3 is characterized by: Each of the bolts (5) passes through the rectangular opening (101) and the side plate (2) and is threadedly connected to the corresponding threaded sleeve (6); the side plate (2) is installed on the large-volume concrete block (1) through the connection between the bolts (5) and the threaded sleeve (6).
6. The large-volume concrete anti-cracking structure suitable for complex environments according to claim 3 is characterized by: Each of the bolts (5) and the rubber ring (7) is sleeved in the corresponding circular hole (401) and the annular groove (402), and an interference connection structure is formed between the rubber ring (7) and the annular groove (402).