Cast-in-place structural beam steel bar protection component and cast-in-place structural beam

Abstract

The utility model discloses a cast-in-place structural beam reinforcing steel bar protection member and a cast-in-place structural beam, the cast-in-place structural beam reinforcing steel bar protection member is used for being placed between a bottom die and a reinforcing steel bar framework, the cast-in-place structural beam reinforcing steel bar protection member comprises a fixing frame and a plurality of reinforcing steel bar protection layer cushion blocks, and the reinforcing steel bar protection layer cushion blocks are arranged on the fixing frame at intervals. Each reinforcing steel bar protective layer cushion block is provided with a fixing piece, and the reinforcing steel bar protective layer cushion blocks are fixed to the fixing frame through the fixing pieces. According to the utility model, the reinforcing steel bar protective layer cushion block is fixed on the fixing frame, so that the reinforcing steel bar protective layer cushion block does not move in the construction process, and the thickness of the beam bottom reinforcing steel bar protective layer can be effectively ensured to meet the design thickness requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and further relates to a cast-in-place structural beam reinforcement protection component and a cast-in-place structural beam. Background Art

[0002] The function of the steel bar protective layer pad is to fix the position of the steel bar and prevent the steel bar from being exposed and corroded. It is an auxiliary concrete structure placed between the steel bar and the formwork in the brick-concrete structure and the frame structure. It can be used for different parts such as the bottom plate steel bar protective layer, the cast-in-place plate surface steel bar protective layer, the cast-in-place plate lower steel bar protective layer, the beam bottom protective layer, the column and beam side and the wall panel protective layer. The above parts have the corresponding steel bar protective layer thickness, so that the reinforced concrete components can be used in the external environment without the steel bar being corroded beyond the design requirements, and the durability of the concrete structure is achieved.

[0003] In current construction, especially for large cast-in-place structural beams, due to the large size and heavy weight of the beam bottom steel bars, it is extremely difficult to fix the steel bar protective layer pads. Generally, the steel bar protective layer pads are directly placed at the preset position. However, there is a common and obvious construction quality problem. Because the construction process sequence of the structural beam is to support the bottom formwork first → then support the side formwork → tie the steel bars → support the other side formwork, the beam bottom pads will be missing, or after displacement, they are generally not placed on the steel skeleton stirrup points, and they cannot play the role of protective layer thickness.

[0004] Therefore, it is necessary to design a cast-in-place structural beam reinforcement protection component and a cast-in-place structural beam to solve the above problems. Summary of the invention

[0005] In view of the above technical problems, the purpose of the utility model is to provide a cast-in-place structural beam steel bar protection component and a cast-in-place structural beam. By fixing the steel bar protection layer pad on a fixed frame, the steel bar protection layer pad will not move during the construction process, which can effectively ensure that the thickness of the steel bar protection layer at the bottom of the beam meets the design thickness requirements.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a cast-in-place structural beam steel bar protection component for being placed between a bottom form and a steel bar skeleton, comprising a fixing frame and a plurality of steel bar protection layer pads, wherein the plurality of steel bar protection layer pads are arranged at intervals on the fixing frame, and each of the steel bar protection layer pads is provided with a fixing piece, and the steel bar protection layer pad is fixed to the fixing frame through the fixing piece.

[0007] In some embodiments, the fixing frame includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod connected end to end in sequence, wherein the first connecting rod is arranged in parallel with the third connecting rod, and the second connecting rod is arranged in parallel with the fourth connecting rod.

[0008] In some embodiments, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are integrally bent by waste steel bars, and an end of the first connecting rod away from the second connecting rod is fixedly connected to an end of the fourth connecting rod away from the third connecting rod by binding wire.

[0009] In some embodiments, at least two of the steel bar protective layer pads are disposed on the first connecting rod, and at least two of the steel bar protective layer pads are disposed on the third connecting rod. The steel bar protective layer pads on the first connecting rod are symmetrically arranged with the steel bar protective layer pads on the third connecting rod.

[0010] In some embodiments, a plurality of the steel bar protective layer pads are respectively fixed to the bottom of the first connecting rod and the bottom of the third connecting rod;

[0011] Alternatively, a plurality of the steel bar protective layer pads are respectively fixed to the side of the first connecting rod and the side of the third connecting rod.

[0012] In some embodiments, the fixing member is a wire tie, a through hole is provided in the middle of the steel bar protective layer pad, and the wire tie passes through the through hole and is tied to the fixing frame.

[0013] In some embodiments, the fixing piece is an elastic clip, which is fixed to the steel bar protective layer pad. The elastic clip is a circular structure with an opening, and both sides of the opening are bent outward to form a bent portion. The diameter of the circular structure of the elastic clip is smaller than the diameter of the connected part of the fixing frame, so that the steel bar protective layer pad is fixed to the fixing frame through the elastic clip.

[0014] In some embodiments, the steel bar protective layer pad is made by casting ordinary concrete or ultra-high performance concrete.

[0015] According to another aspect of the utility model, the utility model further provides a cast-in-place structural beam, comprising any one of the cast-in-place structural beam reinforcement protection components described above, and further comprising:

[0016] Bottom mold;

[0017] Two parallel and spaced side forms are fixed on the bottom form, and the cast-in-place structural beam reinforcement protection member is placed on the bottom form and located between the two side forms;

[0018] A steel bar skeleton is placed on the steel bar protection component of the cast-in-place structural beam so that the bottom of the steel bar skeleton is spaced a preset distance from the bottom form.

[0019] In some embodiments, the cast-in-place structural beam reinforcement protection components are provided in plurality, and the plurality of cast-in-place structural beam reinforcement protection components are arranged at intervals along the length direction of the bottom form;

[0020] The distance between the cast-in-place structural beam reinforcement protection component and the side formwork on both sides is 20mm-80mm.

[0021] Compared with the prior art, the cast-in-place structural beam reinforcement protection component and the cast-in-place structural beam provided by the utility model have the following beneficial effects:

[0022] In the utility model, the steel bar protective layer pad is fixed on the fixing frame, and the steel bar protective layer pad does not move during the construction process, so that the steel bar protective layer pad is in a preset position between the bottom mold and the steel bar skeleton, which can effectively ensure that the thickness of the steel bar protective layer at the bottom of the beam meets the design thickness requirement; and the fixing frame can also be used as a supporting structure to support the steel bar skeleton, and there is no need to deliberately make the steel bar protective layer pad abut against the bottom steel bar of the steel bar skeleton, so that the installation is more convenient; in addition, the fixed frame can be made of discarded steel bars on site, which is green, material-saving and low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0024] Figure 1 It is a structural schematic diagram of a cast-in-place structural beam reinforcement protection component of a preferred embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of a steel bar protective layer pad of a preferred embodiment of the utility model;

[0026] Figure 3 It is a cross-sectional view of a cast-in-place structural beam of a preferred embodiment of the utility model;

[0027] Figure 4 It is a plan view of a cast-in-place structural beam of a preferred embodiment of the utility model.

[0028] Description of Figure Numbers:

[0029] Fixed frame 1, first connecting rod 11, second connecting rod 12, third connecting rod 13, fourth connecting rod 14, steel bar protective layer pad 2, fixing piece 21, through hole 22, bottom form 3, side form 4, steel bar skeleton 5, concrete 6, supporting structure 7. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0031] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0032] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0033] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] In one embodiment, the reference specification Figure 1 , Figure 2 The utility model provides a cast-in-place structural beam steel bar protection component, which is used to be placed between the bottom form and the steel bar skeleton, including a fixing frame 1 and a plurality of steel bar protection layer pads 2, wherein the plurality of steel bar protection layer pads 2 are arranged on the fixing frame 1 at intervals, and each steel bar protection layer pad 2 is provided with a fixing piece 21, and the steel bar protection layer pad 2 is fixed to the fixing frame 1 through the fixing piece 21.

[0036] In this embodiment, by fixing the steel bar protective layer pad 2 on the fixing frame 1, the steel bar protective layer pad 2 does not move during the construction process, so that the steel bar protective layer pad 2 is in a preset position between the bottom form and the steel bar skeleton, which can effectively ensure that the thickness of the steel bar protective layer at the bottom of the beam meets the design thickness requirement; and the fixing frame 1 can also serve as a supporting structure to support the steel bar skeleton, and there is no need to deliberately make the steel bar protective layer pad 2 abut against the bottom steel bars of the steel bar skeleton, making the installation more convenient.

[0037] In one embodiment, the reference specification Figure 1 The fixing frame 1 includes a first connecting rod 11, a second connecting rod 12, a third connecting rod 13 and a fourth connecting rod 14 which are connected end to end in sequence, wherein the first connecting rod 11 is arranged in parallel with the third connecting rod 13, and the second connecting rod 12 is arranged in parallel with the fourth connecting rod 14. That is, the fixing frame 1 is a square structure. Since the general cast-in-place beam is a square structure, by setting the fixing frame 1 as a square structure, the fixing frame 1 can be conveniently placed in the casting trough on the bottom mold, and it is easy to ensure that the fixing frame 1 is located inside the concrete after casting. Of course, the fixing frame 1 can also be set as a field-shaped structure, a trapezoidal structure, etc., and can also be changed accordingly according to the shape of the casting trough in actual use, as long as the structure can be used to fix multiple protective layer pads 2.

[0038] Furthermore, the first connecting rod 11, the second connecting rod 12, the third connecting rod 13 and the fourth connecting rod 14 are integrally bent and formed by waste steel bars, and the end of the first connecting rod 11 away from the second connecting rod 12 and the end of the fourth connecting rod 14 away from the third connecting rod 13 are fixedly connected by binding wires, and of course they can also be fixed in other ways. For example: the diameter of the waste steel bars is 6mm, 8mm, etc., the length of the fixing frame 1 is 400mm-600mm, such as 450mm, 500mm, 550mm, etc.; the width of the fixing frame 1 is 20mm-80mm on each side of the beam width of the cast-in-place beam, such as 30mm, 40mm, 50mm, 60mm, 70mm, etc. By using the waste steel bars on site to make the fixing frame, it has the advantages of green material saving and low cost.

[0039] Furthermore, at least two steel bar protective layer pads 2 are provided on the first connecting rod 11, and at least two steel bar protective layer pads 2 are provided on the third connecting rod 13. The steel bar protective layer pads 2 on the first connecting rod 11 and the steel bar protective layer pads 2 on the third connecting rod 13 are symmetrically arranged. That is, the steel bar protective layer pads 2 are fixed on the long side of the fixing frame 1, that is, the direction in which the cast-in-place beam extends. By arranging multiple steel bar protective layer pads 2 on each side of the fixing frame 1, the structural stability of the steel bar protective component of the cast-in-place structural beam can be ensured.

[0040] Furthermore, the steel bar protective layer pad 2 is cast by ordinary concrete or ultra-high performance concrete. The steel bar protective layer pad 2 is a purchased product, or a cement-based pad that meets the requirements of the thickness of the steel bar protective layer at the bottom of the beam in the design specifications is produced using specialized pressing equipment and standard molds. In the actual construction process, steel bar protective layer pads 2 of different thicknesses can be selected according to actual working conditions. The steel bar protective layer pad 2 is preferably cast by ultra-high performance concrete. Compared with ordinary concrete, ultra-high performance concrete has ultra-high mechanical properties and compressive strength, so the problem of insufficient thickness of the protective layer caused by the steel bar protective layer pad 2 being broken due to insufficient strength can be avoided.

[0041] In one embodiment, the reference specification Figure 1 , Figure 2 , multiple steel bar protective layer pads 2 are respectively fixed to the bottom of the first connecting rod 11 and the bottom of the third connecting rod 13. If the fixing member 21 is a wire tie, a through hole 22 is provided in the middle of the steel bar protective layer pad 2, and the wire tie passes through the through hole 22 and is tied to the fixing frame 1, so that the steel bar protective layer pad 2 is fixedly connected to the fixing frame 1. Alternatively, the fixing member 21 is an elastic buckle, and the elastic buckle is fixed to the top of the steel bar protective layer pad 2. The elastic buckle is a circular structure with an opening, and the two sides of the opening are bent outward to form a bending portion. The diameter of the circular structure of the elastic buckle is smaller than the diameter of the fixing frame 1 to be connected, so that the steel bar protective layer pad 2 is fixed to the fixing frame 1 through the elastic buckle. Of course, the fixing member can also be other structures or devices, as long as the structure or device can achieve the purpose of fixing the steel bar protective layer pad 2 on the fixing frame 1.

[0042] It should be pointed out that the thickness of the cast-in-place structural beam steel bar protection component of this structure is the sum of the thickness of the fixing frame 1 and the thickness of the steel bar protection layer pad 2.

[0043] In another embodiment, a plurality of steel bar protective layer pads 2 are respectively fixed to the side of the first connecting rod 11 and the side of the third connecting rod 13, wherein the plurality of steel bar protective layer pads 2 can be located between the first connecting rod 11 and the third connecting rod 13, or can be located outside the first connecting rod 11 and the third connecting rod 13. If the fixing member 21 is a wire tie, a through hole 22 is provided in the middle of the steel bar protective layer pad 2, and the wire tie passes through the through hole 22 and is tied to the fixing frame 1, so that the steel bar protective layer pad 2 is fixedly connected to the fixing frame 1. Alternatively, the fixing member 21 is an elastic buckle, which is fixed to the side of the steel bar protective layer pad 2, and the elastic buckle is a circular structure with an opening, and the two sides of the opening are bent outward to form a bending portion, and the circular structure diameter of the elastic buckle is smaller than the diameter of the fixing frame 1 to be connected, so that the steel bar protective layer pad 2 is fixed to the fixing frame 1 through the elastic buckle. Of course, the fixing member can also be other structures or devices, as long as the structure or device that can realize the fixing of the steel bar protective layer pad 2 on the fixing frame 1 is sufficient.

[0044] It should be noted that, in order to reduce costs, small-sized steel bars are generally used to make the fixing frame 1, that is, the thickness of the fixing frame 1 is generally less than the thickness of the steel bar protective layer pad 2. The thickness of the cast-in-place structural beam steel bar protection component of this structure is also the thickness of the steel bar protective layer pad 2.

[0045] According to another aspect of the present invention, the reference specification Figures 1 to 4 The utility model further provides a cast-in-place structural beam, including the cast-in-place structural beam steel bar protection component described in any one of the above, and also includes: a bottom mold 3, the bottom of the bottom mold 3 is supported and fixed by a supporting structure 7; two parallel and spaced side molds 4 are fixed on the bottom mold 3, and the cast-in-place structural beam steel bar protection component is placed on the bottom mold 3 and located between the two side molds 4; a steel bar skeleton 5 is placed on the cast-in-place structural beam steel bar protection component, so that the bottom of the steel bar skeleton 5 is spaced a preset distance from the bottom mold 3, and the specific distance is set according to actual needs.

[0046] Furthermore, a plurality of cast-in-place structural beam steel bar protection components are provided, and the plurality of cast-in-place structural beam steel bar protection components are arranged at intervals along the length direction of the bottom formwork 3; the cast-in-place structural beam steel bar protection components are spaced 20mm-80mm from the side formworks 4 on both sides, such as 30mm, 40mm, 50mm, 60mm, 70mm, etc.

[0047] In practical applications, the specific usage process is as follows:

[0048] Purchase or make steel bar protective layer pads 2 of required specifications in advance, collect waste steel bars to make a fixing frame 1, and fix multiple steel bar protective layer pads 2 at intervals on the long sides of both sides of the fixing frame 1;

[0049] Lay the bottom formwork 3 on the supporting structure 7, support the side formwork 4 on one side, place the cast-in-place structural beam steel bar protection component on the bottom formwork 3, tie the steel bar skeleton 5 and place it on the cast-in-place structural beam steel bar protection component, support the side formwork 4 on the other side, and complete the construction after pouring concrete.

[0050] In this embodiment, by fixing the steel bar protective layer pad 2 on the fixing frame 1, the steel bar protective layer pad 2 does not move during the construction process, so that the steel bar protective layer pad 2 is in the preset position between the bottom mold 3 and the steel bar skeleton 4, which can effectively ensure that the thickness of the steel bar protective layer at the bottom of the beam 100% meets the design thickness requirement; and the fixing frame can also be used as a supporting structure to support the steel bar skeleton, without deliberately making the steel bar protective layer pad abut against the bottom steel bars of the steel bar skeleton, so that the placement is convenient and fast; in addition, the cast structure beam steel bar protection component can completely replace the existing beam bottom pad, and the fixed frame can be made of discarded steel bars on site, which is green, material-saving and low-cost.

[0051] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0052] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A cast-in-place structural beam reinforcement protection component, used to be placed between the bottom form and the reinforcement skeleton, characterized in that: It comprises a fixing frame and a plurality of steel bar protection layer pads, wherein the plurality of steel bar protection layer pads are arranged on the fixing frame at intervals, each of the steel bar protection layer pads is provided with a fixing piece, and the steel bar protection layer pad is fixed to the fixing frame through the fixing piece.

2. The cast-in-place structural beam reinforcement protection component according to claim 1, characterized in that: The fixing frame includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod which are sequentially connected end to end, wherein the first connecting rod is arranged in parallel with the third connecting rod, and the second connecting rod is arranged in parallel with the fourth connecting rod.

3. The cast-in-place structural beam reinforcement protection component according to claim 2, characterized in that: The first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are integrally bent by waste steel bars, and one end of the first connecting rod away from the second connecting rod is fixedly connected with one end of the fourth connecting rod away from the third connecting rod by binding wire.

4. The cast-in-place structural beam reinforcement protection component according to claim 3, characterized in that: At least two of the steel bar protection layer pads are arranged on the first connecting rod, and at least two of the steel bar protection layer pads are arranged on the third connecting rod. The steel bar protection layer pads on the first connecting rod and the steel bar protection layer pads on the third connecting rod are symmetrically arranged.

5. The cast-in-place structural beam reinforcement protection component according to claim 4, characterized in that: A plurality of the steel bar protective layer pads are respectively fixed to the bottom of the first connecting rod and the bottom of the third connecting rod; Alternatively, a plurality of the steel bar protective layer pads are respectively fixed to the side of the first connecting rod and the side of the third connecting rod.

6. The cast-in-place structural beam reinforcement protection component according to any one of claims 1 to 5, characterized in that: The fixing piece is a tie wire, a through hole is provided in the middle of the steel bar protective layer pad, and the tie wire passes through the through hole and is tied to the fixing frame.

7. The cast-in-place structural beam reinforcement protection component according to any one of claims 1 to 5, characterized in that: The fixing piece is an elastic clip, which is fixed on the steel bar protective layer pad. The elastic clip is a circular structure with an opening, and both sides of the opening are bent outward to form a bent portion. The diameter of the circular structure of the elastic clip is smaller than the diameter of the connected part of the fixing frame, so that the steel bar protective layer pad is fixed on the fixing frame through the elastic clip.

8. The cast-in-place structural beam reinforcement protection component according to any one of claims 1 to 5, characterized in that: The steel bar protective layer pad is made by pouring ordinary concrete or ultra-high performance concrete.

9. A cast-in-place structural beam, characterized in that: The cast-in-place structural beam reinforcement protection component comprises any one of claims 1 to 8, and further comprises: Bottom mold; Two parallel and spaced side forms are fixed on the bottom form, and the cast-in-place structural beam reinforcement protection member is placed on the bottom form and located between the two side forms; A steel bar skeleton is placed on the steel bar protection component of the cast-in-place structural beam so that the bottom of the steel bar skeleton is spaced a preset distance from the bottom form.

10. The cast-in-place structural beam according to claim 9, characterized in that: The cast-in-place structural beam reinforcement protection components are provided in plurality, and the plurality of cast-in-place structural beam reinforcement protection components are arranged at intervals along the length direction of the bottom formwork; The distance between the cast-in-place structural beam reinforcement protection component and the side formwork on both sides is 20mm-80mm.

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