Combined core module for prefabricating cavity column
By designing a combined core module, using slender rods and flexible fabric to form core module units, and using elastic seals, the problems of low quality and high cost in precast cavity column casting were solved, achieving low-cost and high-quality casting results.
Patent Information
- Application Number
- CN202423266761.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing methods for casting precast hollow columns suffer from problems such as low casting quality and high cost. In particular, the side-by-side casting method is prone to cracking, the core mold method is costly and requires custom core molds, and the shotcrete method requires a large investment in equipment.
The core module unit, composed of slender rods and flexible cloth, combined with elastic seals, forms a composite core module that can form a cavity core mold to adapt to different shape requirements. The elastic seals prevent concrete from flowing into the gaps, ensuring the quality of the pouring.
It realizes a casting method that is simple in structure, easy to assemble, and reusable, reduces mold costs, has strong adaptability, and ensures the casting quality of precast hollow columns.
Smart Images
Figure CN223657272U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of fabricated building, more specifically, relate to a kind of combined core module for prefabricated cavity column. BACKGROUND
[0002] The prefabricated cavity has the advantages of light weight, convenient transportation and hoisting, and is widely used in fabricated buildings. The prefabricated cavity column is usually prepared by edge-by-edge pouring method, core mold method or shotcrete production method. The edge-by-edge pouring method is prone to cracks at the new and old joint, leading to separation. The core mold method requires the placement of multiple core molds such as wooden core molds and inflatable core molds. These core molds need to be designed and customized according to the prefabricated cavity column, which is costly. Although the shotcrete production method has high construction efficiency, it requires a large amount of investment in equipment and suitable concrete, resulting in high overall cost.
[0003] In summary, how to provide a prefabricated cavity column pouring method with high pouring quality and low cost is a problem that needs to be solved by technical personnel in the field. SUMMARY
[0004] Therefore, the utility model aims to provide a combined core module for prefabricated cavity column, which is simple in structure, easy to assemble, has high pouring quality, is reusable, has low mold cost, and can meet the pouring needs of prefabricated cavity columns with different cavity shapes, and has strong adaptability.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] A combined core module for prefabricated cavity column, comprising:
[0007] A plurality of core module units, including a plurality of elongated rods and a flexible cloth wrapped and fixed outside the elongated rods, so as to form a cavity core around the core module units;
[0008] An elastic sealing element for filling the gap between two adjacent core module units and the gap between the core module units and the transverse reinforcement.
[0009] Preferably, the flexible cloth includes a flexible layer on the inside and a wear-resistant layer on the outside, and the deformation amount of the wear-resistant layer is less than that of the flexible layer.
[0010] Preferably, the wear-resistant layer includes a woven cloth layer, which is bonded or woven to the flexible layer.
[0011] Preferably, the flexible cloth includes at least one layer of geotextile and / or at least one layer of silica gel cloth.
[0012] Preferably, the elastic sealing member comprises an air-filled rubber tire, and at least one end of the air-filled rubber tire in the height direction is provided with an air inlet.
[0013] Preferably, the cavity in the cavity core mold surrounded by the core module unit is provided with a cavity.
[0014] Preferably, both ends of the flexible cloth in the length direction are provided with Velcro, and the Velcro extends along the height direction of the core module unit.
[0015] Preferably, both ends of the flexible cloth in the length direction are respectively provided with a male buckle and a female buckle of a hook-and-loop fastener, and the hook-and-loop fastener is uniformly distributed along the height direction of the core module unit.
[0016] Preferably, the flexible cloth is provided with a fixing clamp, and the axis of the fixing clamp is parallel to the axis of the core module unit.
[0017] Preferably, the flexible cloth is bound with a steel wire rope, and the steel wire rope is used to bind and fix the flexible cloth outside the elongated rod.
[0018] The combined core module for the prefabricated cavity column provided by the utility model utilizes the elongated rod to cover the flexible cloth to form a core module unit, and then the core module unit surrounds the shape of the cavity in the prefabricated column, which not only has a simple structure, is convenient to assemble, and has a low cost, but also can be repeatedly used for the core module unit, further reduces the mold cost of the cavity core mold, can meet the pouring requirements of the prefabricated cavity column with different cavity shapes, and has high applicability.
[0019] Meanwhile, elastic sealing members are arranged between the two adjacent core module units and between the core module unit and the transverse steel bars, which effectively prevents the concrete from flowing into the cavity area during pouring, and ensures the pouring quality of the prefabricated cavity column. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only the embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative labor.
[0021] Figure 1 It is the structure schematic view of the specific embodiment one of the combined core module for the prefabricated cavity column provided by the utility model.
[0022] Figure 2 It is the structure schematic view of the specific embodiment one of the combined core module for the prefabricated cavity column provided by the utility model. Figure 1 It is the structure schematic view of the specific embodiment one of the combined core module for the prefabricated cavity column provided by the utility model.
[0023] Figure 3 The structural schematic diagram of a second embodiment of the combined core module for the prefabricated cavity column is provided.
[0024] Figures 1-3 In the middle:
[0025] 01-outer formwork; 02-reinforcing cage; 021-longitudinal reinforcement; 022-transverse reinforcement; 1-core module unit; 11-elongated rod; 12-flexible cloth; 2-inflatable rubber tire. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] The core of the utility model provides a kind of combined core module for prefabricated cavity column, it is simple in structure, convenient to assemble, and pouring quality is high, it can be repeatedly used, mould cost is low, and it can meet the pouring demand of prefabricated cavity column of different cavity shapes, and strong adaptability.
[0028] The combined core module for prefabricated cavity column provided by the utility model comprises:
[0029] A plurality of core module units 1, comprising a plurality of elongated rods 11 and flexible cloth 12 wrapped and fixed outside the elongated rod 11, so as to form a cavity core by the core module unit 1;
[0030] Elastic sealing element, for filling the gap between the adjacent two core module units 1, and the gap between the core module unit 1 and the transverse reinforcement 022.
[0031] Please refer to Figure 1 , the core module unit 1 includes internal elongated rod 11 and external flexible cloth 12, and the elongated rod 11 can be specifically provided as plastic or wooden cylindrical rod, rectangular rod, etc., and the flexible cloth 12 is wrapped outside the elongated rod 11, for constraining the internal elongated rod 11 to form a core module unit 1 with a certain shape, the size of the elongated rod 11 in the same core module unit 1 can be the same or different, for example Figure 3 The core module unit 1 in the embodiment has two sizes of elongated rods 11.
[0032] Of course, the elongated rods 11 in the plurality of core module units 1 for forming cavity core can be set to the same size, as shown in Figure 1 , or can be set to different sizes, as shown in Figure 3The size of the elongated rod 11 in the core module unit 1 located on the diagonal line of the outer formwork 01 is different from the size of the elongated rod 11 in the core module unit 1 located on the center line of the outer formwork 01.
[0033] It can be understood that when the shape of the core module unit 1 is relatively regular, such as a rectangle, a square, etc., the specifications of the elongated rod 11 are relatively less; and when the shape of the core module unit 1 is relatively complex, for example, a certain side of the core module unit 1 is arc-shaped, the specifications of the elongated rod 11 are relatively more.
[0034] The flexible cloth 12 is wrapped outside the elongated rod 11, and the flexible cloth 12 can be fixed by means of a clamp, a steel wire rope, a magic tape, etc.; considering that the flexible cloth 12 acts as a cavity core and will be in contact with the concrete, the flexible cloth 12 needs to have certain waterproof performance and chemical stability to avoid the concrete from seeping into the inside of the core module unit 1 and then flowing into the preset cavity range of the prefabricated cavity column.
[0035] The flexible cloth 12 can be provided as at least one layer of geotextile and / or at least one layer of silica cloth, which has good waterproof performance and chemical stability, and at the same time, the cost is relatively low, which is conducive to reducing the cost of the combined core module. Of course, the flexible cloth 12 can also be provided as a composite cloth; the specific material and thickness of the flexible cloth 12 are determined according to the actual production needs, which will not be described here again. However, in order to save costs, the material and thickness of the flexible cloth 12 of each core module unit 1 are usually the same.
[0036] The number of the core module units 1 and the shape and size of each core module unit 1 are mainly determined according to the cavity shape and size of the prefabricated cavity column in actual production and the distribution of the reinforcement cage 02 in the prefabricated cavity column, so as to avoid the longitudinal reinforcement 021 or the transverse reinforcement 022 from passing through the core module unit 1.
[0037] The length of the flexible cloth 12 is determined according to the outer contour size of the outermost elongated rod 11 in the core module unit 1 in actual production, and the length of the elongated rod 11 and the length of the flexible cloth 12 need to be determined according to the height of the prefabricated cavity column in actual production. Usually, the length of the elongated rod 11 and the length of the flexible cloth 12 are both greater than the height of the prefabricated cavity column and less than the height of the outer formwork 01.
[0038] Considering that there can be a gap between the adjacent two elongated rods 11 in the core module unit 1, especially when the elongated rod 11 is a cylindrical rod, which can cause a gap between the adjacent two core module units 1 and between the core module unit 1 and the transverse reinforcement 022, in order to prevent the concrete from flowing into the above-mentioned gap during pouring, an elastic sealing member is filled in the above-mentioned gap. The elastic sealing member can block the concrete by sealing the gap between the adjacent two core module units 1 and the gap between the core module unit 1 and the transverse reinforcement 022.
[0039] Of course, for the core module unit 1 divided according to the steel cage 02, as shown in Figure 1 and Figure 3 any two adjacent core module units 1 are provided with transverse steel bars 022, so there is only a gap between the core module unit 1 and the transverse steel bar 022, and there is no gap between the two adjacent core module units 1, so only the elastic seal needs to be provided between the core module unit 1 and the transverse steel bar 022.
[0040] The elastic seal can be provided as an elastic pad such as a rubber sealing pad to seal the above-mentioned gap by the elasticity of the elastic pad itself; or it can be provided as an inflatable sealing pad, which is inflated to expand and tightly adhere to the core module unit 1 or the transverse steel bar 022, thereby sealing the above-mentioned gap.
[0041] Considering the convenience of assembly, the elastic seal is preferably provided as an inflatable rubber tire 2, at least one end of the inflatable rubber tire 2 in the height direction, usually the upper end of the inflatable rubber tire 2, is provided with an inflation port.
[0042] When assembling, the inflatable rubber tire 2 is placed in an un-inflated state between the two adjacent core module units 1 and between the core module unit 1 and the transverse steel bar 022, which facilitates the placement of the inflatable rubber tire 2, and then the inflatable rubber tire 2 is inflated through the inflation port to tightly adhere to the core module unit 1 or the transverse steel bar 022.
[0043] In the present embodiment, the core module unit 1 is formed by covering the flexible cloth 12 with the elongated rod 11, and the shape of the cavity of the precast column is surrounded by the core module unit 1, which not only has a simple structure, is convenient to assemble, and has a low cost, but also can be reused to further reduce the mold cost of the cavity core, and can meet the pouring requirements of precast cavity columns with different cavity shapes, and has strong applicability;
[0044] At the same time, the elastic seal is provided between the two adjacent core module units 1 and between the core module unit 1 and the transverse steel bar 022, which effectively prevents the concrete from flowing into the cavity area during pouring, and ensures the pouring quality of the precast cavity column.
[0045] Preferably, in order to reduce the number of core module units 1 required, the interior of the cavity core surrounded by the core module unit 1 can be provided with a cavity, as shown in Figure 1 and Figure 3 which not only helps to reduce the cost of the combined core module, but also facilitates the assembly of the combined core module.
[0046] On the basis of the above-mentioned embodiments, the flexible cloth 12 can include an inner flexible layer and an outer wear-resistant layer, and the deformation amount of the wear-resistant layer is less than that of the flexible layer.
[0047] The deformation of the flexible layer in contact with the outermost elongated rod 11 is large, which can compensate for the gap between the outermost elongated rods 11 due to tangency, so that the outer contour of the core module unit 1 is relatively smooth, avoiding the problem of obvious undulation of the cavity surface of the prefabricated cavity column, and slightly undulating the inner side of the concrete of the prefabricated cavity column caused by the deformation of the flexible cloth 12, improving the engagement force during concrete pouring.
[0048] The deformation of the wear-resistant layer in contact with the concrete to be poured is small, which is not easy to wear, so as to improve the service life of the flexible cloth 12 and facilitate repeated use of the flexible cloth 12; the wear-resistant layer is usually provided as a woven cloth layer, which can be bonded or woven with the flexible layer.
[0049] On the basis of the above embodiment, in order to fix the flexible cloth 12 to the outside of the elongated rod 11, the two ends of the flexible cloth 12 in the length direction can be provided with magic tape, which is arranged along the height direction of the core module unit 1, and the two ends of the flexible cloth 12 are fixed by magic tape, so that the flexible cloth 12 is tightly fixed outside the elongated rod 11;
[0050] The two ends of the flexible cloth 12 in the length direction can also be provided with a male buckle and a female buckle, which are uniformly distributed along the height direction of the core module unit 1, and the flexible cloth 12 is tightly fixed outside the elongated rod 11 by the male buckle and the female buckle, the specific type, model and spacing of the male buckle and the female buckle are determined according to the actual production needs, and will not be repeated here;
[0051] The flexible cloth 12 can also be provided with a fixed clamp, and the axis of the fixed clamp is parallel to the axis of the core module unit 1, and the type, model, number and distribution of the fixed clamp are determined according to the actual production needs, as long as the flexible cloth 12 can be tightly wrapped outside the elongated rod 11;
[0052] Or the flexible cloth 12 can be bound with a steel wire rope, and the steel wire rope is used to bind and fix the flexible cloth 12 outside the elongated rod 11, of course, the steel wire rope can be replaced by other flexible ropes with similar functions, and the model, size, number and distribution of the steel wire rope are also determined according to the actual production needs, as long as the flexible cloth 12 can be tightly wrapped outside the elongated rod 11.
[0053] It can be understood that in order to facilitate the demolding of the prefabricated column cavity column, when the connecting piece used by the flexible cloth 12 is in contact with the concrete, the outer surface of the connecting piece is preferably provided with a demolding agent layer, so that the core module unit 1 and the concrete can be smoothly separated.
[0054] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same and similar parts between each embodiment can be referred to each other.
[0055] The above has carried out the detailed introduction to the combined core module for the prefabricated cavity column provided by the utility model. The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment is only used for helping to understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claim.
Claims
1. A combined core module for a precast cavity column, characterized by, The application relates to a core module unit (1) for a core module, comprising a plurality of elongated rods (11) and a flexible cloth (12) wrapped around the elongated rods (11) to form a cavity core. An elastic sealing member is arranged to fill the gap between two adjacent core module units (1) and the gap between the core module unit (1) and a transverse steel bar (022). The flexible cloth (12) comprises a flexible layer on the inner side and a wear-resistant layer on the outer side, and the deformation amount of the wear-resistant layer is smaller than that of the flexible layer.
2. The composite core module for a prefabricated cavity column of claim 1, wherein, The wear-resistant layer comprises a woven cloth layer which is bonded or wovenly connected to the flexible layer.
3. The composite core module for a prefabricated cavity column of claim 2, wherein, The flexible cloth (12) comprises at least one layer of geotextile and / or at least one layer of silica gel cloth.
4. The composite core module for a prefabricated cavity column of claim 1, wherein, The elastic sealing member comprises an inflatable rubber tire (2), and at least one end of the inflatable rubber tire (2) in the height direction is provided with an inflation port.
5. The composite core module for a prefabricated cavity column of claim 1, wherein, The cavity core formed by the core module unit (1) is internally provided with a cavity.
6. The composite core module for precast cavity columns according to any one of claims 1-5, wherein, Both ends of the flexible cloth (12) in the length direction are provided with Velcro, and the Velcro extends along the height direction of the core module unit (1).
7. The composite core module for a prefabricated cavity column of claim 6, wherein, Both ends of the flexible cloth (12) in the length direction are respectively provided with a male buckle and a female buckle of a hook-and-loop fastener, and the hook-and-loop fastener is uniformly distributed along the height direction of the core module unit (1).
8. The composite core module for a prefabricated cavity column of claim 6, wherein, The flexible cloth (12) is externally provided with a fixing clamp, and the axis of the fixing clamp is parallel to the axis of the core module unit (1).
9. The composite core module for a prefabricated cavity column of claim 6, wherein, The flexible cloth (12) is externally bound with a steel wire rope, and the steel wire rope is used for binding and fixing the flexible cloth (12) to the outside of the elongated rod (11).
10. The composite core module for a prefabricated cavity column of claim 6, wherein,