Formwork-free and support-free structure of concrete beam

Abstract

The utility model discloses a concrete beam formwork-free and support-free structure, and relates to the technical field of constructions.The concrete beam formwork-free and support-free structure comprises a plurality of U-shaped frames, connecting assemblies are arranged on the U-shaped frames, each connecting assembly comprises two vertically-arranged sliding grooves formed in one end of the corresponding U-shaped frame, and vertically-arranged reinforcing ribs are fixedly connected into the sliding grooves; through cooperative arrangement of the sliding grooves, the reinforcing ribs, the supporting steel bars and other structures, during use, the multiple U-shaped frames are connected through the sliding grooves and the connecting blocks according to the length of a concrete beam needing to be poured, the reinforcing ribs are inserted into the connecting holes, the stability of connection between the U-shaped frames is improved, then the supporting steel bars are inserted into the through holes correspondingly, and the U-shaped frames are connected through the connecting blocks; the multiple U-shaped frames are connected in series, the strength of the U-shaped frames is improved, then concrete is poured into the U-shaped frames to form the concrete beams, and the problem that when concrete beams with different lengths are poured, prefabricated part frames with different lengths need to be replaced, and the applicability is reduced is solved as much as possible.

Description

Technical Field

[0001] This application relates to the field of construction technology, and particularly to a formwork-free and support-free structure for concrete beams. Background Art

[0002] The formwork-free concrete beam means that during the concrete pouring process, traditional formwork is not required for support and shaping, thus simplifying the construction process and improving construction efficiency. This technology usually involves the use of non-removable formwork, which is a new type of in-situ casting formwork characterized by not requiring disassembly after use. The non-removable formwork is mainly made of yellow sand, cement, and pulp as basic materials, with a layer of steel grid added in the middle and manufactured through modern processes. After the concrete is poured, this formwork can be left inside the concrete structure as a permanent protective layer and continue to play a role in support and reinforcement, thus achieving the effect of non-removal. Compared with the traditional formwork removal construction method, the use of non-removable formwork can save time and labor costs while improving the project quality.

[0003] The utility model patent with the publication number CN217500788U proposes a cavity structure of a non-removable integrated reinforced concrete beam cage formwork precast member, including a precast member frame arranged on the outer surface of the main body of the beam cage formwork precast member. Load-bearing steel bars are embedded inside the precast member frame. A beam cage fixing frame is lapped on the upper surface of the precast member frame. A transverse inner ring stirrup is lapped on the inner surface of the precast member frame, and a longitudinal inner ring stirrup is vertically connected to the outside of the transverse inner ring stirrup.

[0004] For the above-mentioned cavity structure of a non-removable integrated reinforced concrete beam cage formwork precast member, by integrating the main body of the beam cage formwork precast member with the building during pouring, the precast member frame is made of concrete, and the beam cage fixing frame, transverse inner ring stirrup, and longitudinal inner ring stirrup are all made of steel bars. After the precast member frame is combined with materials such as concrete, a complete whole is formed and does not require disassembly. However, the precast member frame cannot be adjusted. When pouring concrete beams of different lengths, precast member frames of different lengths need to be replaced, resulting in a problem of reduced applicability. Utility Model Content

[0005] The purpose of the present utility model is to solve or at least alleviate the problem of the existing cavity structure of a non-removable integrated reinforced concrete beam cage formwork precast member. By integrating the main body of the beam cage formwork precast member with the building during pouring, the precast member frame is made of concrete, and the beam cage fixing frame, transverse inner ring stirrup, and longitudinal inner ring stirrup are all made of steel bars. After the precast member frame is combined with materials such as concrete, a complete whole is formed and does not require disassembly. However, the precast member frame cannot be adjusted. When pouring concrete beams of different lengths, precast member frames of different lengths need to be replaced, resulting in a problem of reduced applicability.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A formwork-free and support-free concrete beam structure comprises a plurality of U-shaped frames, wherein the U-shaped frames are provided with connection components, wherein the connection components comprise two vertically arranged slide grooves opened at one end of the U-shaped frames, wherein the slide grooves are fixedly connected with vertically arranged reinforcing ribs, and the other end of the U-shaped frame is fixedly connected with two vertically arranged connection blocks, wherein the connection blocks are provided with connection holes matched with the reinforcing ribs, and the connection blocks are slidably arranged in the slide grooves, and a plurality of corresponding through holes are opened at the bottom of one end of the U-shaped frames, and the same supporting steel bar is passed through the corresponding through holes on the plurality of U-shaped frames.

[0008] By adopting the above technical scheme, when in use, multiple U-shaped frames are connected to each other through slide grooves and connecting blocks according to the length of the concrete beam to be cast, and the reinforcing ribs are inserted into the connecting holes to improve the stability of the connection between the U-shaped frames. Then, the supporting steel bars are respectively inserted into the through holes, and the multiple U-shaped frames are connected in series to improve the strength of the U-shaped frames. Then, concrete is poured in the U-shaped frames to prevent the U-shaped frames from being deformed due to lack of support to form concrete beams. This avoids the need to replace prefabricated frames of different lengths when casting concrete beams of different lengths, thereby reducing the problem of applicability.

[0009] Optionally, a fixing plate is fixedly connected to the inner wall of the U-shaped frame, and insertion holes are provided at four ends of a side wall on one side of the fixing plate.

[0010] By adopting the above technical solution, after connecting and fixing multiple U-shaped frames, multiple external fixing steel bars are passed through the sockets on multiple fixing plates so that the fixing steel bars are evenly located in the multiple U-shaped frames, and then concrete is poured, thereby improving the strength of the poured concrete beam and preventing the concrete beam from breaking.

[0011] Optionally, a casting hole is provided in the middle section of the side wall on one side of the fixing plate, and a plurality of circular connecting grooves are provided on the inner side wall of the U-shaped frame.

[0012] By adopting the above technical solution, the pouring holes can prevent the poured concrete from being blocked by the fixed plate, so that the concrete can be poured into multiple U-shaped frames through the pouring holes. At the same time, during pouring, the concrete can be filled into the circular connecting groove, thereby improving the stability of the connection with the U-shaped frame.

[0013] Optionally, two parallel support frames are provided at the top of the U-shaped frame, fixing bolts are provided at both ends of the upper surface of the support frames, and the output ends of the fixing bolts pass through the support frames and are threadedly connected to the U-shaped frame.

[0014] By adopting the above technical solution, when pouring concrete into the U-shaped frame, first place the support frame on the U-shaped frame and connect it to the U-shaped frame through the fixing bolts, which can improve the stability of the U-shaped frame and prevent expansion during concrete pouring.

[0015] Optionally, both ends of the support steel bar extend out of the U-shaped frame and the side wall is provided with external threads. Locking blocks are sleeved on both ends of the support steel bar, and the locking blocks are threadedly connected to the support steel bar through the external threads.

[0016] By adopting the above technical solution, after connecting multiple U-shaped frames in series with the support steel bar, thread the locking blocks onto both ends of the support steel bar through the external threads and abut against the U-shaped frames, which can prevent sliding.

[0017] Optionally, the U-shaped frame is made of concrete, and the fixing plate and the support frame are both made of steel.

[0018] By adopting the above technical solution, the U-shaped frame made of concrete can form an integral concrete beam during concrete pouring, and there is no need to remove the U-shaped frame.

[0019] Optionally, T-shaped limiting grooves are provided on one side wall of the sliding groove, and T-shaped limiting plates are fixedly connected to one side wall of the connecting block. The T-shaped limiting plates are respectively slidably arranged in the T-shaped limiting grooves.

[0020] By adopting the above technical solution, the T-shaped limiting plates and the T-shaped limiting grooves can improve the sliding stability of the connecting block in the sliding groove.

[0021] In summary, the beneficial effects of the present application are as follows:

[0022] 1. Through the cooperative setting of structures such as the sliding groove, the reinforcing ribs, and the support steel bar, during use, according to the length of the concrete beam to be poured, connect multiple U-shaped frames to each other through the sliding groove and the connecting block, insert the reinforcing ribs into the connecting holes to improve the connection stability between the U-shaped frames, then insert the support steel bars into the through holes respectively to connect multiple U-shaped frames in series, improve the strength of the U-shaped frames, and then pour concrete into the U-shaped frames to prevent the U-shaped frames from deforming without support and form a concrete beam, thus avoiding as much as possible the problem that when pouring concrete beams of different lengths, it is necessary to replace prefabricated frame parts of different lengths, resulting in reduced applicability;

[0023] 2. After connecting and fixing multiple U-shaped frames, by passing multiple external fixing steel bars through the jacks on multiple fixing plates, making the fixing steel bars evenly located within multiple U-shaped frames, and then pouring concrete, the strength of the poured concrete beam can be improved, and the concrete beam can be prevented from cracking. Description of the Drawings

[0024] Figure 1 is the overall structural schematic diagram of the present utility model;

[0025] Figure 2 is the exploded structural schematic diagram of two U-shaped frames of the present utility model;

[0026] Figure 3 of the present utility model Figure 2 is the enlarged structural schematic diagram of area A in;

[0027] Figure 4 of the present utility model Figure 2 is the enlarged structural schematic diagram of area B in.

[0028] Explanation of reference numerals: 1, U-shaped frame; 2, chute; 3, reinforcing rib; 4, connecting block; 5, connecting hole; 6, through hole; 7, supporting steel bar; 8, fixing plate; 9, jack; 10, pouring hole; 11, support frame; 12, fixing bolt; 13, external thread; 14, T-shaped limit groove; 15, T-shaped limit plate; 16, locking block; 17, circular connecting groove. Specific embodiments

[0029] The following will Figures 1-4 further describe the present application in detail with reference to the

[0030] Please refer to Figures 1-3 , a formwork-free and support-free structure for a concrete beam, including a plurality of U-shaped frames 1 with different lengths, which is convenient to select U-shaped frames 1 with different lengths according to the required length of the concrete beam for connection, so that the whole formed by connecting a plurality of U-shaped frames 1 has the same length as the concrete beam to be poured. A connection assembly for connecting and fixing a plurality of U-shaped frames 1 to each other is provided on the U-shaped frame 1. The connection assembly includes a chute 2, a reinforcing rib 3, a connecting block 4, a connecting hole 5, a through hole 6 and a supporting steel bar 7;

[0031] The chute 2 is opened on both sides at one end of the U-shaped frame 1 and is vertically arranged. The top of the chute 2 is open for sliding the connecting block 4 into the chute 2. A plurality of reinforcing ribs 3 are provided and are respectively fixedly connected in the chute 2. The reinforcing ribs 3 are vertically arranged. The connecting block 4 is fixedly connected to both sides at the other end of the U-shaped frame 1 and is vertically arranged. A plurality of connecting holes 5 are provided and are respectively opened on the connecting block 4 and are adapted to the reinforcing ribs 3. When the connecting blocks 4 are respectively slid into the chute 2, the reinforcing ribs 3 are inserted into the connecting holes 5 to connect two U-shaped frames 1. A plurality of groups of through holes 6 are provided. Each group of through holes 6 is respectively opened at the bottom of one end of the U-shaped frame 1 and each group of through holes 6 is arranged oppositely. A plurality of supporting steel bars 7 are provided and penetrate through the through holes 6 to connect a plurality of U-shaped frames 1, enhancing the stability and load-bearing capacity of the U-shaped frame 1.

[0032] In use, the user first connects multiple U-shaped frames 1 to each other through sliding grooves 2 and connecting blocks 4 according to the length of the concrete beam to be poured, inserts the reinforcing bars 3 into the connecting holes 5 to improve the connection stability between the U-shaped frames 1, then inserts the supporting steel bars 7 into the through holes 6 respectively to string together multiple U-shaped frames 1 to improve the strength of the U-shaped frames 1, and then pours concrete into the U-shaped frames 1 to prevent the U-shaped frames 1 from deforming without support, forming a concrete beam, and avoiding as much as possible the problem that when pouring concrete beams of different lengths, it is necessary to replace prefabricated frames of different lengths, resulting in reduced applicability.

[0033] Refer to Figure 2 , a fixing plate 8 is fixedly connected to the inner wall of the U-shaped frame 1, insertion holes 9 are opened at the four ends of one side wall of the fixing plate 8, and the insertion holes 9 on each fixing plate 8 are arranged oppositely. After connecting and fixing multiple U-shaped frames 1, by passing external fixing steel bars through the insertion holes 9 on multiple fixing plates 8 respectively, the fixing steel bars are evenly located inside multiple U-shaped frames 1, and then concrete is poured, which can improve the strength of the poured concrete beam and prevent the concrete beam from cracking.

[0034] Refer to Figure 2 , pouring holes 10 are opened in the middle section of one side wall of the fixing plate 8, and a plurality of circular connecting grooves 17 are opened on the inner side wall of the U-shaped frame 1. Through the pouring holes 10, the poured concrete can be prevented from being blocked by the fixing plate 8, so that the concrete can be poured into multiple U-shaped frames 1 through the pouring holes 10, which is convenient for pouring concrete into the U-shaped frames 1. At the same time, when pouring, the concrete can be filled into the circular connecting grooves 17 to improve the connection stability between the concrete and the U-shaped frames 1.

[0035] Refer to Figure 2 , two parallel support frames 11 are provided at the top of each U-shaped frame 1, fixing bolts 12 are provided at both ends of the upper surface of the support frames 11, and the output ends of the fixing bolts 12 penetrate through the support frames 11 and are threadedly connected to the U-shaped frames 1. When pouring concrete into the U-shaped frames 1, first place the support frames 11 on the U-shaped frames 1 and connect them through the fixing bolts 12, which can improve the stability of the U-shaped frames 1 and prevent problems such as expansion and deformation of the U-shaped frames 1 when pouring concrete.

[0036] Refer to Figure 1 , both ends of the supporting steel bar 7 extend out of the U-shaped frame 1 and external threads 13 are provided on the side walls. Locking blocks 16 are sleeved at both ends of the supporting steel bar 7, and the locking blocks 16 are threadedly connected to the supporting steel bar 7 through the external threads 13. After stringing together multiple U-shaped frames 1 with the supporting steel bar 7, the locking blocks 16 are threadedly connected to both ends of the supporting steel bar 7 through the external threads 13 and are abutted against the U-shaped frames 1, which can prevent the U-shaped frames 1 from sliding.

[0037] Refer to Figure 2, the U-shaped frame 1 is made of concrete, and the fixing plate 8 and the support frame 11 are both made of steel. When pouring concrete through the U-shaped frame 1 made of concrete, a whole concrete beam can be formed without removing the U-shaped frame 1.

[0038] Refer to Figure 3 and Figure 4 , T-shaped limit grooves 14 are formed on one side wall of the sliding groove 2, and T-shaped limit plates 15 are fixedly connected to one side wall of the connecting block 4. The T-shaped limit plates 15 are respectively slidably arranged in the T-shaped limit grooves 14. The stability of the connecting block 4 sliding in the sliding groove 2 can be improved through the T-shaped limit plates 15 and the T-shaped limit grooves 14.

[0039] The implementation principle of this application is as follows: When in use, the user first connects multiple U-shaped frames 1 with different lengths to each other through the sliding groove 2 and the connecting block 4 according to the length of the concrete beam to be poured, inserts the reinforcing bars 3 into the connecting holes 5 to connect the multiple U-shaped frames 1 to form a frame with the length of the concrete beam to be poured. Then, the support reinforcing bars 7 are respectively inserted into the through holes 6 to connect the multiple U-shaped frames 1 in series, improving the strength of the U-shaped frames 1, so that support can be avoided when pouring concrete into the frame, improving the convenience of operation. Then, the locking blocks 16 are threadedly connected to both ends of the support reinforcing bars 7 through the external threads 13 and are abutted against the U-shaped frames 1, which can prevent the U-shaped frames 1 from sliding on the support reinforcing bars 7. After connecting and fixing the multiple U-shaped frames 1, by passing multiple external fixing reinforcing bars through the insertion holes 9 on the multiple fixing plates 8, the fixing reinforcing bars are evenly located inside the multiple U-shaped frames 1. Then, concrete is poured into the U-shaped frames 1, which can improve the strength of the poured concrete beam and prevent the concrete beam from cracking. At the same time, through the circular connecting groove 17, the concrete can be filled into the circular connecting groove 17 during pouring, improving the connection stability with the U-shaped frame 1, and avoiding as much as possible the problem that when pouring concrete beams with different lengths, different lengths of precast frame parts need to be replaced, resulting in reduced applicability.

[0040] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model 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 for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A formwork-free and support-free structure for a concrete beam, comprising a plurality of U-shaped frames (1), wherein a connecting component is provided on the U-shaped frame (1), and it is characterized in that: The connecting component includes two vertically arranged sliding grooves (2) opened at one end of the U-shaped frame (1). Reinforcing ribs (3) vertically arranged are fixedly connected in the sliding grooves (2). Two vertically arranged connecting blocks (4) are fixedly connected to the other end of the U-shaped frame (1). Connecting holes (5) adapted to the reinforcing ribs (3) are opened in the connecting blocks (4). The connecting blocks (4) are respectively slidably arranged in the sliding grooves (2). A plurality of corresponding through holes (6) are opened at the bottom of one end of the U-shaped frame (1). The same supporting steel bar (7) passes through the corresponding through holes (6) on a plurality of U-shaped frames (1).

2. The formwork-free and support-free structure for a concrete beam according to claim 1, wherein: A fixing plate (8) is fixedly connected to the inner wall of the U-shaped frame (1). Insertion holes (9) are opened at four ends of one side wall of the fixing plate (8).

3. A formwork-free and support-free structure for a concrete beam according to claim 2, characterized in that: Pouring holes (10) are opened in the middle sections of one side wall of the fixing plate (8). A plurality of circular connecting grooves (17) are opened on the inner side wall of the U-shaped frame (1).

4. A formwork-free and support-free structure for a concrete beam according to claim 3, characterized in that: Two parallelly arranged support frames (11) are provided at the top of the U-shaped frame (1). Fixed bolts (12) are provided at both ends of the upper surface of the support frames (11).

5. A formwork-free and support-free structure for a concrete beam according to claim 4, characterized in that: The output end of the fixed bolt (12) penetrates through the support frame (11) and is threadedly connected to the U-shaped frame (1).

6. The concrete beam formwork-free and support-free structure according to claim 5, characterized in that: Both ends of the supporting steel bar (7) extend out of the U-shaped frame (1) and external threads (13) are provided on the side wall. Locking blocks (16) are sleeved at both ends of the supporting steel bar (7). The locking blocks (16) are threadedly connected to the supporting steel bar (7) through the external threads (13).

7. A formwork-free and support-free structure for a concrete beam according to claim 6, characterized in that: The U-shaped frame (1) is made of concrete material, and the fixing plate (8) and the support frame (11) are both made of steel material.

8. A formwork-free and support-free structure for a concrete beam according to claim 7, characterized in that: T-shaped limiting grooves (14) are opened on one side wall of the sliding grooves (2). T-shaped limiting plates (15) are fixedly connected to one side wall of the connecting blocks (4). The T-shaped limiting plates (15) are respectively slidably arranged in the T-shaped limiting grooves (14).

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