Reinforced precast concrete parts

Abstract

The present invention discloses a reinforced concrete prefabricated part, which relates to the technical field of concrete prefabrication, and includes a steel mesh group and a concrete structure; the concrete structure includes a plate body and overhead ribs, the plate body is provided with a rear groove, the rear groove is an open structure in the upward direction of the plate body, the overhead rib is located in the rear groove, and the bottom of the overhead rib is separated from the bottom of the rear groove, and the end is fixed to the groove wall of the rear groove; the steel mesh group includes an internal rib group and a spare rib group, the internal rib group is cast and fixed in the plate body and the overhead rib, and the internal rib group extends a connecting rib in the rear groove; the spare rib group is installed in the rear groove and fixed to the connecting rib; the rear groove is used for concrete casting after the plate body is assembled to recreate an adaptive chimera. This application allows the prefabricated plate to meet the use needs when the structure and use properties change, so as not to be wasted, and to have less impact on the construction progress.

Description

Technical Field

[0001] The present application relates to the technical field of concrete prefabrication, and in particular to a reinforced concrete prefabricated part. Background Art

[0002] For concrete construction, in addition to cast-in-place structures, there is also prefabrication, such as prefabricated stairs and prefabricated floor slabs.

[0003] Taking prefabricated floor slabs as an example, their structural strength is determined according to the steel bars placed during the prefabrication process, the concrete type used, and the span of the floor slabs. When the prefabricated parts are used directly and completely, the structural strength of the floor slabs meets the use requirements, but the construction party sometimes encounters owners and others who require changes to the design layout, which results in the need to change the number and size of openings, destroying the original structure and usage properties, and the original structural strength cannot adapt to new requirements. In response to the above situation, the existing practice is generally to re-customize the prefabricated panels, but this method requires rearrangement from ordering, prefabrication, and distribution, which is relatively time-consuming and also results in a large waste of materials. Therefore, the present application proposes a new technical solution. Summary of the invention

[0004] In order to allow prefabricated panels to meet usage requirements when the structure and usage properties change, avoid being wasted, and have less impact on the construction progress, the present application provides a reinforced concrete prefabricated part.

[0005] The present application provides a reinforced prefabricated concrete part, which adopts the following technical solution:

[0006] A reinforced concrete prefabricated component comprises a steel mesh group and a concrete structure;

[0007] The concrete structure includes a plate body and overhead ribs, the plate body is provided with a rear groove, the rear groove is open in the upward direction of the plate body, the overhead rib is located in the rear groove, the bottom of the overhead rib is separated from the bottom of the rear groove, and the end is fixed to the groove wall of the rear groove;

[0008] The steel mesh group includes an internal reinforcement group and a spare reinforcement group. The internal reinforcement group is cast and fixed in the plate body and the overhead ribs. The internal reinforcement group extends connecting reinforcements in the rear groove. The spare reinforcement group is installed in the rear groove and fixed to the connecting reinforcement.

[0009] The post-grooving is used for pouring concrete after the panel body is assembled to recreate an adaptive chimeric body.

[0010] Optionally, a hanging horse stool is also included, the hanging horse stool includes a horizontal tube, a vertical tube and a base body, the horizontal tube is used to sleeve the horizontal reinforcement of the spare reinforcement group, the vertical tube is fixed to the side of the horizontal tube and is used to sleeve the vertical connecting reinforcement, and the base body is arranged at the lower part of the vertical tube;

[0011] The upper end of the vertical tube is sleeved with a rotating ring 1, the vertical tube is threadedly connected to the rotating ring 1, a hanging wire 1 is passed through the rotating ring 1, one end of the hanging wire 1 is fixed to the inner wall of the rotating ring 1, and the other end passes through the rotating ring 1 and is fixed with a stop head 1;

[0012] The upper end of the rotating ring 1 is sleeved with a rotating ring 2, the rotating ring 1 and the rotating ring 2 are threadedly connected, the rotating ring 2 is penetrated with a hanging wire 2, one end of the hanging wire 2 is fixed to the inner wall of the rotating ring 2, and the other end passes through the rotating ring 2 and is fixed with a stopper 2;

[0013] The connecting rib is provided with an anti-slip groove, and the first and second strangled wires are used to wind around the connecting rib and are stuck in the protective groove.

[0014] Optionally, the lower end of the vertical pipe is threadedly connected to the base body, and the upper end of the second rotating ring extends inward to form a splicing portion, and the splicing portion has a socket adapted to the lower end of the vertical pipe.

[0015] Optionally, there is a hanging horse stool below the overhead rib, the base body of the hanging horse stool falls on the bottom of the rear groove and the rotating ring 2 contacts the bottom of the overhead rib.

[0016] Optionally, the overhead rib is trapezoidal in end view and the two corners of the trapezoid close to the upper bottom are rounded; the built-in rib group extends from the bottom of the overhead rib to form a lower rib, and the lower rib is inserted downward into the rotating ring 2 and is wrapped by the strangled wire 1 and the strangled wire 2.

[0017] Optionally, the transverse tube has an opening on one side facing away from the vertical tube, an extension section is axially extended from the end of the transverse tube, a C-shaped clip is externally buckled on the extension section, the C-shaped clip closes the side opening of the extension section of the transverse tube, a plug plate is extended from the side of the C-shaped clip toward the end of the transverse tube, and the transverse tube is provided with a slot for the plug plate to fit.

[0018] Optionally, the horizontal tube is a conductive metal structure, and the horizontal tube is insulated from the vertical tube; the hanging horse stool is used to perform power-on detection after connecting the spare reinforcement group and the connecting reinforcement.

[0019] Optionally, reinforcing fibers are also included, and the reinforcing fibers are located in the chimera and are at least arranged around the opening positions and the load-bearing nodes in the rear groove.

[0020] In summary, the present application includes the following beneficial technical effects: the prefabricated floor slab described in the present application, part of its structure can be cast after assembly. Since the main structure of the present application has been prefabricated, it can provide a support foundation for subsequent construction, and the overall construction progress has little impact. Moreover, since the spare reinforcement group can be readjusted according to the site requirements and the concrete poured in the rear trench can achieve the required structural strength, it is less affected by changes in the building layout design and can reinforce weak areas. At the same time, since there is no need to rebuild the formwork, the construction is relatively convenient. That is, the present application allows the prefabricated panels to meet the usage needs when the structure and usage nature change, so they will not be wasted, and the impact on the construction progress is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a partial longitudinal section structure schematic diagram of the present application;

[0022] Figure 2 It is a structural schematic diagram of the hanging horse stool of the present application.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. Plate body; 11. Rear groove; 2. Overhead rib; 3. Internal rib group; 4. Spare rib group; 5. Connecting rib; 6. Hanging horse stool; 61. Horizontal tube; 62. Vertical tube; 621. Rotating ring one; 622. Rotating ring two; 63. Base body; 64. C-shaped buckle; 65. Insert plate; 66. Hanging wire one; 67. Hanging wire two. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-2 This application is described in further detail.

[0025] The embodiment of the present application discloses a reinforced prefabricated concrete part.

[0026] Reference Figure 1-2 The reinforced concrete prefabricated part includes a steel mesh group and a concrete structure, wherein the concrete structure includes a plate body 1 and overhead ribs 2. The plate body 1 can be rectangular, circular, etc. when viewed from above, which is determined according to the specific engineering requirements. This embodiment takes a rectangular plate body 1 as an example for explanation. A rear groove 11 is formed on the plate body 1, and the rear groove 11 is parallel to the length and width of the plate body 1. The rear groove 11 is an open structure in the upward direction of the plate body 1, so that after the plate body 1 is assembled, the rear groove 11 can be cast to form a chimeric body to obtain a complete floor slab.

[0027] It should be noted that the above-mentioned post-grooving 11 is preferably arranged in areas where holes may be opened and where there is a large load-bearing capacity, so as to strengthen the structure of some areas in a targeted manner and prevent the opening of holes, especially large-diameter holes, from causing excessive damage to the strength of the floor slab.

[0028] There is at least one overhead rib 2 in each rear groove 11 . The overhead rib 2 is parallel to the length and width of the rear groove 11 . The bottom of the overhead rib 2 is separated from the bottom of the rear groove 11 , and the end is fixed to the groove wall of the rear groove 11 .

[0029] It can be understood that the plate body 1 and the overhead ribs 2 are preferably cast as one piece; during prefabrication, the formwork is first built to cast the portion of the rear groove 11 flush with the bottom of the groove and vibrate and compact it; when the above structure is in a semi-dry state, the portion of the plate body 1 higher than the bottom of the groove and the overhead ribs 2 are cast, and the space between the overhead ribs 2 and the rear groove 11 is filled with wooden boards. If necessary, the bottom of the groove is completely covered with the formwork.

[0030] The steel mesh group includes an internal steel bar group 3 and a spare steel bar group 4, both of which are formed by steel bar bundling and welding, and can be a flat mesh or a cage structure with a small height. In this embodiment, the flat mesh structure is preferred. The thickness of each steel bar of the internal steel bar group 3 and the thickness of each steel bar of the spare steel bar group 4 are not necessarily the same. The appropriate specifications and models are selected according to the needs. The figure is only an example.

[0031] The internal reinforcement group 3 is cast and fixed in the plate body 1 and the overhead rib 2. The internal reinforcement group 3 extends a steel bar segment in the rear groove 11 as a connecting reinforcement 5. The connecting reinforcement 5 can extend upward from the bottom surface of the rear groove 11, or extend downward from the overhead rib 2.

[0032] The protruding setting of the connecting rib 5 can make the chimeric body cast in the rear groove 11 more connected to the plate body 1; the position setting of the overhead rib 2 is also to make the connection strength of the floor slab better after the chimeric body is cast, and the overall continuity of the floor slab is better.

[0033] The density of the spare reinforcement group 4, the thickness of the reinforcement used, etc. are determined according to the construction requirements. The spare reinforcement group 4 is laid in the rear groove 11 and fixed with the connecting reinforcement 5, and then concrete is poured to form a mosaic.

[0034] According to the above content, it can be known that part of the structure of the prefabricated floor described in the present application can be cast after assembly. Since the main structure of the present application has been prefabricated, it can provide a supporting foundation for subsequent construction and has little impact on the overall construction progress. Moreover, since the spare reinforcement group 4 can be readjusted according to the site requirements and the concrete cast in the rear trench 11 can achieve the required structural strength, it is less affected by changes in the building layout design and can reinforce weak areas. At the same time, since there is no need to rebuild the formwork, the construction is relatively convenient.

[0035] In one embodiment of the present application, a hanging horse stool 6 is further included, and the hanging horse stool 6 includes a horizontal tube 61 , a vertical tube 62 and a base body 63 .

[0036] Among them, the transverse tube 61 is used to cover the transverse steel bars of the spare reinforcement group 4. In order to facilitate the installation of the transverse tube 61, the transverse tube 61 is set to be open on one side, that is, the end view of the transverse tube 61 is C-shaped and can be installed by side-on insertion.

[0037] An extension section is axially extended from the end of the transverse tube 61, and a C-shaped buckle 64 is connected to the outside of the extension section. The C-shaped buckle 64 closes the side opening of the extension section of the transverse tube 61; an insert plate 65 is extended from the side of the C-shaped buckle 64 toward the end of the transverse tube 61, and the transverse tube 61 is provided with a slot adapted to the insert plate 65.

[0038] Installation process: first push the transverse tube 61 sideways to allow the steel bar to open the side opening and squeeze into the transverse tube 61, then move the C-shaped buckle 64 to the end of the extension section, and then push the C-shaped buckle 64 toward the transverse tube 61, insert the plug plate 65 into the slot, and buckle the C-shaped buckle 64 to the extension section, so that the transverse tube 61 can be fixed on the steel bar.

[0039] In order to facilitate the buckling of the C-shaped buckle 64 on the extension section, the inner edge of the side facing the transverse tube 61 is rounded, which makes it convenient to directly push the C-shaped buckle 64 into place.

[0040] Reference Figure 2 The vertical tube 62 is fixed to the side of the horizontal tube 61 and is used to sleeve the vertical connecting ribs 5 , and the base body 63 is arranged at the lower part of the vertical tube 62 .

[0041] The upper end of the vertical tube 62 is sleeved with a rotating ring 621, and the vertical tube 62 is threadedly connected to the rotating ring 621. The rotating ring 621 is penetrated by a hanging wire 66, one end of the hanging wire 66 is fixed to the inner wall of the rotating ring 621, and the other end passes through the rotating ring 621 and is fixed with a stopper.

[0042] The above-mentioned strangulation wire 66 can be an iron wire, and the stopper head can be formed by tying the iron wire in a knot; it should be noted that a section of the non-fixed end of the strangulation wire 66 can slide relative to the rotating ring 621 to facilitate the implementation of the subsequent strangulation step.

[0043] The upper end of the rotating ring 1 621 is sleeved with a rotating ring 2 622, and the rotating ring 1 621 and the rotating ring 2 622 are threadedly connected. The rotating ring 2 622 is penetrated with a hanging wire 2 67, one end of the hanging wire 2 67 is fixed to the inner wall of the rotating ring 2 622, and the other end passes through the rotating ring 2 622 and is fixed with a stopper 2. The hanging wire 2 67 is connected in the same way as the hanging wire 1 66, and can also be movable.

[0044] The side surface of the second rotating ring 622 can be made into a plane to form edges and corners for easy rotation.

[0045] The connecting bar 5 is provided with an anti-skid groove. If the steel bar is not smooth but has anti-skid patterns, no anti-skid groove is required. After the vertical tube 62 is put on the connecting bar 5 from top to bottom, the rotating ring 1 621 and the rotating ring 2 622 are rotated respectively to allow the corresponding iron wires (i.e., the second hanging wire 67 and the first hanging wire 66) to be wound around the steel bar, and the vertical tube 62 and the connecting bar 5 are fixed.

[0046] The advantage of the above arrangement is that the steel bar connection is generally welded or tied with wire, both of which are relatively troublesome. More importantly, in the present application, part of the hanging horse stool 6 is located below the overhead rib 2. Whether it is welding or tying, the operation is relatively inconvenient. With the above arrangement, you can just turn your finger and press to rotate.

[0047] Reference Figure 2 The bottom platform 63 is a square plate, and four feet are evenly distributed at the bottom of the square plate to reduce the contact area and reduce the impact of uneven bottom of the groove; at the same time, it also allows concrete to enter. The lower end of the vertical pipe 62 is threadedly connected to the bottom platform 63, and the upper end of the rotating ring 622 extends inward to form a splicing part, which has a plug hole adapted to the lower end of the vertical pipe 62.

[0048] According to the above arrangement, the staff can rotate the vertical pipe 62 relative to the base body 63 according to actual needs, change the height of the hanging horse stool 6, and meet the needs of placing steel bars at different heights; at the same time, after the plate body 1 and the overhead rib 2 are prefabricated, the hanging horse stool 6 can be installed in advance under the overhead rib 2 for support, reducing the probability of the overhead rib 2 with a larger span being accidentally crushed during the transportation, assembly, and post-casting of the prefabricated parts. The above arrangement allows the prefabricated panels to meet the needs of use when the structure and usage properties change, so as not to be wasted, and because they do not need to be prefabricated again, they have less impact on the construction progress.

[0049] The built-in rib group 3 extends from the bottom of the overhead rib 2 to form a lower rib, which is inserted downward into the second rotating ring 622 and is wrapped by the first and second strangled wires 66 and 67 to further improve the overall structural continuity.

[0050] The overhead rib 2 is trapezoidal in shape when viewed from the end, and the two corners of the trapezoid close to the upper bottom are rounded. This arrangement is to allow the staff to better vibrate the concrete structure below the overhead rib 2 after the concrete is poured into the rear groove 11, so as to reduce the position setting of the above-mentioned hanging horse stool 6 and the overhead rib 2, which will cause too many unfilled empty areas inside or near the hanging horse stool 6.

[0051] In one embodiment of the present application, the horizontal pipe 61 is a conductive metal structure, and the horizontal pipe 61 is insulated from the vertical pipe 62. When the staff uses the hanging horse stool 6 to perform power-on detection after connecting the spare rib group 4 and the connecting rib 5.

[0052] According to the above settings, the transverse steel bars of the spare reinforcement group 4 are not conductive with the connecting reinforcement 5. At this time, it is only necessary to set the resistance value of the transverse tube 61. The staff can then energize the transverse steel bars, detect the voltage and current, and calculate the resistance. Then, according to the resistance value set for a single transverse tube 61, a plurality of hanged horse stools 6 are calculated and arranged according to the theoretical resistance of the steel bars. The hanged horse stools 6 serve as connection tools, and their number indicates the number of connection nodes. The number of connection nodes affects the structural strength of the floor slab. The larger the number, the greater the structural strength. Therefore, the present application can facilitate the staff to conduct load analysis and stress analysis.

[0053] In another embodiment of the present application, reinforcing fibers are also included. The reinforcing fibers can be stripped fibers. The reinforcing fibers are mixed into the concrete during the pouring process, that is, the reinforcing fibers are located in the mosaic and at least surround the opening position and the load-bearing node in the rear groove. The reinforcing fibers can be used as fine ribs to further increase the strength of the prefabricated part.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A reinforced prefabricated concrete part, Features: It includes a steel mesh group and a concrete structure; The concrete structure comprises a plate body (1) and overhead ribs (2); a rear groove (11) is arranged on the plate body (1); the rear groove (11) is open in the upward direction of the plate body (1); the overhead rib (2) is located in the rear groove (11); the bottom of the overhead rib (2) is separated from the bottom of the rear groove (11); and the end is fixed to the groove wall of the rear groove (11); The steel mesh group comprises an internal reinforcement group (3) and a spare reinforcement group (4); the internal reinforcement group (3) is cast and fixed in the plate body (1) and the overhead rib (2); the internal reinforcement group (3) extends a connecting reinforcement (5) in the rear groove (11); the spare reinforcement group (4) is installed in the rear groove (11) and fixed to the connecting reinforcement (5); The post-grooving (11) is used for pouring concrete after the panel (1) is assembled to recreate an adapted chimeric body; It also includes a hanging horse stool (6), the hanging horse stool (6) including a horizontal tube (61), a vertical tube (62) and a base body (63), the horizontal tube (61) is used to sleeve the horizontal steel bars of the spare steel bar group (4), the vertical tube (62) is fixed to the side of the horizontal tube (61) and is used to sleeve the vertical connecting steel bars (5), and the base body (63) is arranged at the lower part of the vertical tube (62); The upper end of the vertical tube (62) is sleeved with a rotating ring (621), the vertical tube (62) and the rotating ring (621) are threadedly connected, the rotating ring (621) is penetrated with a hanging wire (66), one end of the hanging wire (66) is fixed to the inner wall of the rotating ring (621), and the other end passes through the rotating ring (621) and is fixed with a stopper (66); The upper end of the rotating ring 1 (621) is sleeved with a rotating ring 2 (622), the rotating ring 1 (621) and the rotating ring 2 (622) are threadedly connected, the rotating ring 2 (622) is penetrated with a hanging wire 2 (67), one end of the hanging wire 2 (67) is fixed to the inner wall of the rotating ring 2 (622), and the other end passes through the rotating ring 2 (622) and is fixed with a stopper 2; The connecting rib (5) is provided with an anti-slip groove, and the first hanging wire (66) and the second hanging wire (67) are used to wrap around the connecting rib (5) and are stuck in the protective groove; The lower end of the vertical tube (62) is threadedly connected to the base body (63), and the upper end of the second rotating ring (622) extends inward to form a splicing portion, and the splicing portion has a socket adapted to the lower end of the vertical tube (62); a hanging horse stool (6) is provided below the overhead rib (2), and the base body (63) of the hanging horse stool (6) falls on the bottom of the rear groove (11) and the second rotating ring (622) contacts the bottom of the overhead rib (2); The transverse tube (61) has an opening on one side facing away from the vertical tube (62); an extension section is axially extended from the end of the transverse tube (61); a C-shaped buckle (64) is externally buckled on the extension section; the C-shaped buckle (64) closes the side opening of the extension section of the transverse tube (61); a plug plate (65) is extended from the side of the C-shaped buckle (64) toward the end of the transverse tube (61); and a slot for the plug plate (65) to fit is provided on the transverse tube (61).

2. The reinforced precast concrete part according to claim 1, Features: The overhead rib (2) is trapezoidal in shape when viewed from the end, and the two corners of the trapezoid close to the upper bottom are rounded; the built-in rib group (3) extends from the bottom of the overhead rib (2) to form a lower rib, and the lower rib is inserted downward into the second rotating ring (622) and is wound by the first strangled wire (66) and the second strangled wire (67).

3. The reinforced precast concrete part according to claim 2, Features: The horizontal tube (61) is a conductive metal structure, and the horizontal tube (61) and the vertical tube (62) are insulated; the hanging horse stool (6) is used to perform power-on detection after connecting the spare reinforcement group (4) and the connecting reinforcement (5).

4. The reinforced prefabricated concrete component according to claim 1, Features: It also includes reinforcing fibers, which are located in the chimera and are arranged at least around the opening position and the bearing node in the rear groove (11).

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