Bevel-edge mass concrete structure

Abstract

The utility model relates to the field of concrete, and discloses a beveled edge mass concrete structure which comprises a panel and an embedded cable bent tower stiff framework, small ridges are detachably installed on the surface of the panel through bolts, back ridges are detachably installed at the front end of the panel through bolts, opposite pull rods are arranged on the side wall of the panel, and the opposite pull rods are connected with the panel through bolts. An S-shaped hook is arranged at the top end of the pre-embedded cable bent tower stiff framework, and a concrete layer is arranged on the inner side of the face plate. According to the utility model, the vibrating groove made of the channel steel is attached to the beveled surface reinforcing mesh, so that a vibrating channel is effectively formed, the vibrating quality of concrete under the back pressure template is ensured, the beveled template is prevented from being holed, and the concrete pouring quality is improved; the stiff framework in a concrete structure is reasonably utilized, and the pump pipe is fixed on the stiff framework through the S-shaped hook, so that an operator is prevented from pushing the pump pipe back and forth, and the labor intensity of the operator under a long-time and large working surface is reduced.

Description

Technical Field

[0001] This utility model relates to the field of concrete, and in particular to a large-volume concrete structure with inclined sides. Background Technology

[0002] With the continuous development of bridge construction, in addition to the requirements of load-bearing capacity, more and more complex structures have emerged in pursuit of aesthetic design. For example, the outer side of the structure has a beveled surface, and counter-pressure formwork needs to be set during construction. This is mainly reflected in structures such as tower bases, tower columns, cable saddle supports, and anchor chambers. The bottom surface of this structure is wide and the top surface is narrow, forming a tapering shape.

[0003] Choosing the right concrete placement and vibration method for sloping surfaces is a challenge in concrete construction. Improper selection can lead to honeycomb, pitting, and cracking in the sloping concrete.

[0004] Construction units often drill holes on inclined surfaces as concrete pouring and vibration holes. While this solves some problems, the surface concrete at the reserved location of the hole differs from other locations, seriously affecting the appearance quality. Conversely, if the inclined surface is not used for concrete pouring, the pump pipe cannot penetrate into the inclined angle, and workers can only push the pump pipe to allow the concrete to flow into the inclined angle. Since the structure is mostly a large volume of concrete pouring, the working time is long, the working area is large, and the workers' workload is high. Therefore, an inclined large volume concrete structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a large-volume concrete structure with an inclined side, which aims to improve the existing technology where, when concrete is poured without an inclined side opening, the pump pipe cannot penetrate into the inclined angle position, and the workers can only push the pump pipe to make the concrete flow into the inclined angle part. Since the structure is mostly a large-volume concrete pouring, the working time is long, the working area is large, and the work intensity of the workers is high.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a large-volume concrete structure with inclined sides, comprising a panel and a pre-embedded cable tower stiffening frame, wherein small ribs are detachably installed on the surface of the panel by bolts, a back rib is detachably installed on the front end of the panel by bolts, tie rods are provided on the side walls of the panel, an S-shaped hook is provided at the top of the pre-embedded cable tower stiffening frame, a pump pipe is in contact with the surface of the S-shaped hook, a vibrating channel steel is detachably installed on the surface of the panel, and a concrete layer is provided on the inner side of the panel.

[0007] As a further description of the above technical solution:

[0008] The concrete layer includes a base layer, which is fixedly connected to the inner side of the panel and to the outer wall of the pre-embedded cable tower stiffening frame.

[0009] As a further description of the above technical solution:

[0010] The concrete layer also includes a water-reducing layer, and the inner wall of the base layer is provided with a cavity, with the water-reducing layer fixedly connected to the top of the cavity of the base layer.

[0011] As a further description of the above technical solution:

[0012] The concrete layer also includes a mineral layer, the top of which is fixedly connected to the water-reducing layer.

[0013] As a further description of the above technical solution:

[0014] The concrete layer also includes an expansion layer, the top of which is fixedly connected to the mineral layer.

[0015] As a further description of the above technical solution:

[0016] The concrete layer also includes a fiber layer, the top of which is fixedly connected to the expansion layer.

[0017] As a further description of the above technical solution:

[0018] The concrete layer also includes a temperature regulating layer, the top of which is fixedly connected to the fiber layer.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, a vibration trough made of channel steel is used and attached to the surface steel mesh of the inclined side, thereby effectively forming a vibration channel. This ensures the vibration quality of concrete under the counter-pressure formwork, avoids opening holes in the inclined formwork, and improves the quality of concrete pouring. The rigid frame in the concrete structure is rationally utilized, and the pump pipe is fixed to the rigid frame through S-shaped hooks, avoiding the need for workers to repeatedly push the pump pipe. This reduces the labor intensity of workers working on large surfaces for extended periods and improves construction efficiency. The above method effectively improves the quality of concrete pouring on the inclined side and effectively reduces the labor intensity of workers.

[0021] 2. In this utility model, the ingenious combination of materials in each layer of the concrete layer, the water-reducing layer to adjust the working performance, the mineral layer to improve the later strength, the expansion layer to compensate for shrinkage, the fiber layer to enhance crack resistance, and the temperature regulating layer to control temperature changes, all work together to comprehensively optimize the overall performance of the concrete, effectively reduce cracks caused by hydration heat, shrinkage and other reasons in large-volume concrete, and enhance the durability, tensile strength and resistance to deformation of the structure. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall planar structure of a large-volume, inclined concrete structure proposed in this utility model.

[0023] Figure 2 This is a schematic diagram of the concrete layer cross-section structure of a large-volume, inclined concrete structure proposed in this utility model.

[0024] Legend:

[0025] 1. Panel; 2. Small rib; 3. Back rib; 4. Tie rod; 5. Embedded cable tower stiffening frame; 6. Vibrating channel steel; 7. S-shaped hook; 8. Pump pipe; 9. Concrete layer; 91. Base layer; 92. Water-reducing layer; 93. Mineral layer; 94. Expansion layer; 95. Fiber layer; 96. Temperature regulating layer. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a large-volume, inclined concrete structure, comprising a panel 1 and a pre-embedded cable tower stiffening frame 5. Small ribs 2 are detachably mounted on the surface of the panel 1 via bolts, and a back rib 3 is detachably mounted on the front end of the panel 1 via bolts. Tie rods 4 are provided on the side walls of the panel 1. An S-shaped hook 7 is provided at the top of the pre-embedded cable tower stiffening frame 5. The pre-embedded cable tower stiffening frame 5 is composed of vertical, horizontal, and diagonal members with angle steel cross-sections. A pump pipe 8 is in contact with the surface of the S-shaped hook 7, and the pump pipe 8 is fixed to the pre-embedded cable tower stiffening frame 5 via the S-shaped hook 7. Above, the end of the pump pipe 8 is inserted into the surface reinforcement to ensure that the vertical distance between the pump pipe 8 and the poured concrete is less than two millimeters. The concrete flows to the underside of the inclined formwork by gravity. The surface of the panel 1 is detachably equipped with a vibrating channel steel 6. The vibrating channel steel 6 is set by the channel steel attached to the surface reinforcement and extends to the top layer of the poured concrete. It is placed parallel to the inclined formwork and is arranged at intervals according to the effective vibration range. The vibrating rod is inserted into the concrete along the vibrating channel steel 6 to effectively vibrate. Vibration is carried out while pouring concrete to effectively eliminate air bubbles in the concrete. A concrete layer 9 is set on the inner side of the panel 1.

[0028] Reference Figure 2The concrete layer 9 includes a base layer 91, which is fixedly connected to the inner side of the panel 1. The base layer 91 is a concrete base layer, composed of cement and sand forming concrete mortar. The base layer 91 is fixedly connected to the outer wall of the pre-embedded cable tower stiffening frame 5. The concrete layer 9 also includes a water-reducing layer 92. The inner wall of the base layer 91 has a cavity, and the water-reducing layer 92 is fixedly connected to the top of the cavity of the base layer 91. The water-reducing layer 92 is a water-reducing agent. Adding the water-reducing agent at the initial stage of concrete mixing can effectively adjust the workability of the concrete, reduce water consumption while ensuring fluidity, and lay the foundation for the subsequent addition of other materials and optimization of concrete performance. The concrete layer 9 also includes a mineral layer 93, which uses materials... The concrete layer 9 consists of slag powder. The mineral layer 93 enhances the later-stage strength and resistance to chemical erosion. The top of the outer wall of the mineral layer 93 is fixedly connected to the water-reducing layer 92. The concrete layer 9 also includes an expansion layer 94, which uses an expansion agent to compensate for concrete shrinkage. Its reaction occurs during the early hardening process of the concrete. Added after the mineral admixtures, it works better with cement and other admixtures to reduce cracks caused by shrinkage. The top of the outer wall of the expansion layer 94 is fixedly connected to the mineral layer 93. The concrete layer 9 also includes a fiber layer 95, made of polypropylene fiber, which primarily improves the tensile strength, toughness, and crack resistance of the concrete. After the concrete has initially formed a certain structure, the fiber can better exert its reinforcing effect in the concrete matrix, such as preventing further crack propagation when cracks appear. The top of the outer wall of the fiber layer 95 is fixedly connected to the expansion layer 94. The concrete layer 9 also includes a temperature regulating layer 96, made of organic phase change material, which is mainly used to control internal temperature changes in the concrete, especially addressing the heat of hydration in large-volume concrete. After the concrete is poured and formed, the phase change material can play a role in regulating the temperature during the internal temperature change process. Therefore, it is more appropriate to place it in the last category of materials to be added. The top of the outer wall of the temperature regulating layer 96 is fixedly connected to the fiber layer 95.

[0029] Working principle: Inclined concrete refers to a concrete structure where the horizontal angle between the counter-pressure formwork and the side of the concrete to be poured is acute. The formwork system includes a panel 1, small ribs 2, back ribs 3, and tie rods 4. In addition to reinforcing steel, a high-stiffness rigid frame 5 is embedded in the concrete structure. This rigid frame consists of vertical, horizontal, and diagonal members with angle steel cross-sections. To mitigate the risk of cracking due to large differences in concrete age between structures, the main structure is poured in multiple stages. First, the first layer of foundation concrete is poured, the remaining foundation steel reinforcement is tied, the cable tower rigid frame 5 is embedded, the formwork system (including panel 1, small ribs 2, back ribs 3, and tie rods 4) is installed, and the vibration trough 6 is installed. The vibration trough 6 is constructed by channel steel attached to the surface reinforcing steel, extending to the top layer of poured concrete, and placed parallel to the inclined formwork, spaced according to the effective vibration range.

[0030] Concrete pouring: The pump pipe 8 is fixed to the rigid frame 5 using an S-shaped hook 7. The end of the pump pipe 8 is inserted into the surface steel reinforcement, ensuring that the vertical distance between the pump pipe 8 opening and the poured concrete is less than 2m. The concrete flows by gravity to the inclined formwork, and the vibrator is inserted into the concrete along the vibrating groove 6 for effective compaction. Vibration is performed while pouring the concrete to effectively eliminate air bubbles within the concrete.

[0031] The base layer 91 is composed of concrete mortar made of cement and sand, connected to the inner side of panel 1 and the outer wall of the pre-embedded cable tower stiffening frame 5, serving as initial filling, adhesion, and foundation support, bearing the force transmitted from each layer to ensure structural stability; the water-reducing layer 92 adds a water-reducing agent, introduced at the initial stage of mixing, which can adjust the workability of the concrete, ensure fluidity while reducing water consumption, help the subsequent materials to disperse evenly, and optimize overall performance; the mineral layer 93 uses slag powder, which can improve later strength and resistance to chemical erosion, ensure structural durability, and allow strength to continue to increase over time; the expansion layer 94 uses an expansion agent, which, in the mixing process... The early hardening of the concrete compensates for shrinkage and, together with other admixtures, reduces shrinkage cracks caused by the heat of hydration in large-volume concrete, enhancing the overall structural integrity and crack resistance. The fiber layer 95 uses polypropylene fibers, which play a reinforcing role after the concrete has initially formed its structure. When cracks appear, the fiber layer can prevent their propagation by its tensile strength, improving tensile strength, toughness, and resistance to deformation cracking. The temperature regulating layer 96 uses organic phase change materials to address the temperature changes caused by the heat of hydration after the large-volume concrete is poured. By regulating the temperature range, it maintains internal temperature stability, reduces cracks caused by temperature stress, and ensures structural quality.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bevelled edge mass concrete structure comprising a panel (1) and a pre-embedded pylon structural skeleton (5), characterised in that: The surface of the panel (1) is detachably mounted with small corrugations (2) through bolts, the front end of the panel (1) is detachably mounted with back corrugations (3) through bolts, the side wall of the panel (1) is provided with a pair of pull rods (4), the top end of the pre-buried tower rigid skeleton (5) is provided with an S-shaped hook (7), the surface of the S-shaped hook (7) is in contact with a pump pipe (8), the surface of the panel (1) is detachably mounted with a vibrating channel steel (6), and the inner side of the panel (1) is provided with a concrete layer (9).

2. A bevelled mass concrete structure according to claim 1, characterised in that: The concrete layer (9) comprises a base layer (91), the base layer (91) is fixedly connected with the inner side of the panel (1), and the base layer (91) is fixedly connected with the outer wall of the pre-buried tower rigid skeleton (5).

3. A bevelled mass concrete structure according to claim 2, characterised in that: The concrete layer (9) further comprises a water-reducing layer (92), the inner wall of the base layer (91) is provided with a cavity, and the water-reducing layer (92) is fixedly connected at the top end of the cavity of the base layer (91).

4. A bevelled mass concrete structure according to claim 3, characterised in that: The concrete layer (9) further comprises a mineral layer (93), and the top end of the outer wall of the mineral layer (93) is fixedly connected with the water-reducing layer (92).

5. A bevelled mass concrete structure according to claim 4, characterised in that: The concrete layer (9) further comprises an expansion layer (94), and the top end of the outer wall of the expansion layer (94) is fixedly connected with the mineral layer (93).

6. A bevelled mass concrete structure according to claim 5, characterised in that: The concrete layer (9) further comprises a fiber layer (95), and the top end of the outer wall of the fiber layer (95) is fixedly connected with the expansion layer (94).

7. A bevelled mass concrete structure according to claim 6, characterised in that: The concrete layer (9) further comprises a temperature adjusting layer (96), and the top end of the outer wall of the temperature adjusting layer (96) is fixedly connected with the fiber layer (95). The concrete layer (9) further comprises a temperature adjusting layer (96), and the top end of the outer wall of the temperature adjusting layer (96) is fixedly connected with the fiber layer (95).

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