Beam bottom steel bar protection layer thickness adjusting device
By inserting transverse reinforcing bars below the main reinforcing bars at the top of the beam and using customized spacers for support, the problem of controlling the thickness of the protective layer of the bottom reinforcing bars of the beam was solved, achieving precise adjustment of the protective layer thickness and improving the stability of the beam structure.
Patent Information
- Application Number
- CN202520194501.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-08
AI Technical Summary
In existing technologies, it is difficult to control the thickness of the concrete cover for the bottom reinforcement of beams. Especially for beams with large reinforcement weight, the spacers are easily crushed or fall off, resulting in exposed reinforcement and affecting the structural performance and safety of the beam.
The method involves inserting transverse reinforcing bars below the main reinforcing bars at the top of the beam, and using highly customized spacers to support them on the formwork surface. By adjusting the height of the transverse reinforcing bars and the customized spacers, the thickness of the protective layer can be precisely controlled, ensuring the stability of the protective layer thickness of the bottom reinforcing bars of the beam.
It enables precise control over the thickness of the protective layer for the bottom reinforcement of the beam, avoids the breakage or detachment of the spacers, improves the accuracy and stability of the installation position, enhances the load-bearing capacity and durability of the beam, and ensures the safety of the building structure.
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Figure CN223853693U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of building construction, in particular to a device for adjusting the thickness of a reinforcing layer at the bottom of a beam. BACKGROUND
[0002] The existing method for controlling the thickness of the reinforcing layer at the bottom of a beam is to place a concrete pad at the joint between the main reinforcement and the stirrup at the bottom of the beam, and use the height of the pad to support the beam bottom reinforcement to ensure the thickness of the beam bottom reinforcement.
[0003] For beams with heavy reinforcement, the installed pad may not be able to withstand the weight of the beam reinforcement, causing the pad to be crushed, and the thickness of the beam bottom reinforcement cannot be guaranteed. In addition, due to the high beam and the surrounding completed side formwork, it is extremely difficult to place a new pad. Once the pad is crushed or falls off, the beam bottom reinforcement loses effective support, directly leading to the difficulty of the beam bottom reinforcement layer thickness to meet the design standard, thereby causing serious leakage of the reinforcement. This leakage problem not only exposes the reinforcement directly to the external environment, causing air, moisture and other corrosive substances to corrode the reinforcement, accelerating the corrosion process of the reinforcement, but also has a very adverse effect on the overall structural performance of the beam, significantly reducing the load-carrying capacity and durability of the beam, and seriously threatening the safety and stability of the entire building structure, creating a huge safety hazard for the subsequent use of the building.
[0004] Therefore, the present application provides a device for adjusting the thickness of the reinforcing layer at the bottom of a beam. CONTENT OF THE INVENTION
[0005] In view of the shortcomings of the prior art, the present application provides a device for adjusting the thickness of the reinforcing layer at the bottom of a beam, which overcomes the shortcomings of the prior art and aims to solve the problem of leakage of the reinforcement caused by the difficulty of placing a new pad for beams with heavy reinforcement, which cannot withstand the weight of the beam reinforcement, causing the pad to be crushed and the thickness of the beam bottom reinforcement to be difficult to guarantee. In addition, due to the high beam and the surrounding completed side formwork, it is extremely difficult to place a new pad. Once the pad is crushed or falls off, the beam bottom reinforcement loses effective support, directly leading to the difficulty of the beam bottom reinforcement layer thickness to meet the design standard, thereby causing serious leakage of the reinforcement. This leakage problem not only exposes the reinforcement directly to the external environment, causing air, moisture and other corrosive substances to corrode the reinforcement, accelerating the corrosion process of the reinforcement, but also has a very adverse effect on the overall structural performance of the beam, significantly reducing the load-carrying capacity and durability of the beam, and seriously threatening the safety and stability of the entire building structure, creating a huge safety hazard for the subsequent use of the building.
[0006] To achieve the above object, the application provides the following technical scheme: a beam bottom steel bar protection layer thickness adjusting device, comprising a beam body, a formwork plate surface and a beam steel bar system, the beam steel bar system comprises a plurality of groups of upper beam main bars and lower beam main bars, the plurality of groups of upper beam main bars are located above the beam body, the plurality of groups of lower beam main bars are located below the beam body, a stirrup is arranged in the beam steel bar system, the plurality of groups of upper beam main bars and the lower beam main bars are fixed by the stirrup, a plurality of groups of transverse steel bars are arranged below the plurality of groups of upper beam main bars, two groups of customized pads are clamped below the transverse steel bars, the two groups of customized pads are respectively located at the bottom of the two ends of the transverse steel bars, and the two groups of customized pads are arranged at the top of the formwork plate surface.
[0007] By adopting the above technical scheme, one transverse steel bar is arranged below the upper beam main bar, the two ends of the transverse steel bar are supported on the formwork plate surface by using the customized pads with a height, the height of the customized pad is calculated according to the design thickness of the beam bottom steel bar protection layer, the upper beam main bar is supported, and the stirrup and the lower beam main bar connected with the upper beam main bar are also supported at the same time, so that the thickness of the beam bottom steel bar protection layer is ensured, meanwhile, the height of the entire beam steel bar system can be controlled by adjusting the height of the upper beam main bar, and the thickness of the protection layer can be more accurately controlled by adjusting the height of the customized pad, so that the thickness of the bottom steel bar protection layer is adjusted, the problems that the lower pad is broken, falls off and is difficult to be repositioned in the prior art method are avoided, and the accuracy of the installation position of the pad is improved by supporting the beam steel bar system by the customized pad and the transverse steel bar, and the position deviation caused by the movable load is avoided.
[0008] As a preferred technical scheme of the application, a groove is formed in the top of the customized pad, and the groove is matched with the transverse steel bar.
[0009] By adopting the above technical scheme, the groove formed in the top of the customized pad is used for supporting the transverse steel bar on the customized pad without movement, and the stability of the transverse steel bar and the customized pad after installation is improved.
[0010] As a preferred technical scheme of the application, the length of the transverse steel bar exceeds the width of the beam body, and the transverse steel bar is a steel bar with a diameter of φ22.
[0011] By adopting the above technical scheme, the length of the transverse steel bar exceeds the width of the beam body, and the two ends of the transverse steel bar each exceed the width of the beam body by 50 mm, so that the part of the two ends of the transverse steel bar exceeding the width of the beam body is connected with the customized pad, and the practicability of the connection between the transverse steel bar and the customized pad is improved.
[0012] The distance between the two adjacent groups of transverse steel bars is greater than 1m.
[0013] By adopting the above technical scheme, the installation distance between the two adjacent groups of transverse steel bars can be controlled within 1-1.5m by distributing the weight of the beam steel bar system on the transverse steel bars and the customized cushion blocks, and the installation distance can be determined according to the beam section size 5 and the on-site installation condition, thereby reducing the number of customized cushion blocks, improving the installation efficiency, and reducing the labor amount of workers.
[0014] As a preferred technical solution of the present application, the bottom end of the customized cushion block is provided with an anti-skid layer.
[0015] By adopting the above technical scheme, the anti-skid property of the customized cushion block is enhanced by the anti-skid layer, and the stability of the customized cushion block after installation is improved.
[0016] As a preferred technical solution of the present application, the number of the customized cushion blocks is at least twice the number of the transverse steel bars.
[0017] By adopting the above technical scheme, the number of the customized cushion blocks is at least twice the number of the transverse steel bars, which ensures that two groups of customized cushion blocks are matched for one group of transverse steel bars, thereby effectively supporting both ends of the several groups of transverse steel bars, and improving the practicability in use.
[0018] As a preferred technical solution of the present application, the material of the customized cushion block is the same as the material of the transverse steel bar.
[0019] By adopting the above technical scheme, the customized cushion block is made of the tail material of the remaining transverse steel bars according to the height, which not only saves the use amount of the customized cushion block, but also fully utilizes the construction waste, and greatly saves the cost.
[0020] The beneficial effects of the present application are as follows:
[0021] 1. The application is characterized in that a transverse steel bar is passed through the upper main reinforcement of the beam, the two ends of the transverse steel bar are supported on the formwork plate surface by using a specially designed custom pad, the height of the custom pad is calculated according to the design thickness of the beam bottom reinforcement cover, after the upper main reinforcement of the beam is supported, the stirrup connected thereto and the bottom main reinforcement of the beam are also supported synchronously, so that the beam bottom reinforcement cover thickness can be guaranteed, at the same time, the construction personnel can control the height of the entire beam reinforcement system by adjusting the height of the upper main reinforcement of the beam, and the thickness of the reinforcement cover can be more accurately controlled by adjusting the height of the custom pad, thereby adjusting the thickness of the bottom reinforcement cover, avoiding the problem that the lower pad is broken, falls off and is not easy to reposition in the prior art method, and at the same time, the device supports the beam reinforcement system by the custom pad and the transverse steel bar, and the load is entirely borne by the custom pad and the transverse steel bar, so the device is fixed firmly, the accuracy of the installation position of the pad is improved, and the position deviation caused by the movable load is avoided.
[0022] 2. The recess provided on the top of the custom pad is used to support the transverse steel bar on the custom pad without moving, thereby improving the stability of the transverse steel bar and the custom pad after installation. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 The figure is a cross-sectional structure schematic diagram of the application;
[0024] Figure 2 The figure is a top view structure schematic diagram of the application;
[0025] Figure 3 The figure is a side view structure schematic diagram of the application.
[0026] In the figure: 1, beam body; 2, formwork plate surface; 3, custom pad; 4, recess; 5, transverse steel bar; 6, beam reinforcement system; 601, upper main reinforcement of the beam; 602, bottom main reinforcement of the beam; 7, stirrup; 8, anti-skid layer. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.
[0028] REFERENCE Figures 1-3The utility model provides a kind of beam bottom steel bar protective layer thickness adjusting device, including beam body 1, formwork board surface 2 and beam steel bar system 6, beam steel bar system 6 includes several groups of beam upper main reinforcement 601 and beam bottom main reinforcement 602, several groups of beam upper main reinforcement 601 are located above beam body 1, several groups of beam bottom main reinforcement 602 are located below beam body 1, the inside of beam steel bar system 6 is provided with stirrup 7, and several groups of beam upper main reinforcement 601 are fixed by stirrup 7 with beam bottom main reinforcement 602, several groups of beam upper main reinforcement 601 are provided with several groups of transverse steel bars 5 below, and two groups of customized pads 3 are clamped below transverse steel bar 5, and two groups of customized pads 3 are respectively located at the bottom of transverse steel bar 5 both ends, and two groups of customized pads 3 are all set to the top of formwork board surface 2;The length of transverse steel bar 5 exceeds the width of beam body 1, and transverse steel bar 5 is diameter φ22 steel bar.
[0029] By passing a transverse steel bar 5 below beam upper main reinforcement 601, two ends of transverse steel bar 5 are supported on formwork board surface 2 using height customized customized pad 3, wherein the height of customized pad 3 is calculated according to the design thickness of beam bottom steel bar protective layer, after beam upper main reinforcement 601 is supported, the stirrup 7 and beam bottom main reinforcement 602 connected with it are also supported synchronously, so that the thickness of beam bottom steel bar protection can be guaranteed, and meanwhile, the height of the entire beam steel bar system 6 can be controlled by adjusting the height of beam upper main reinforcement 601 by construction personnel, and the thickness of the protective layer can be more accurately controlled by adjusting the height of customized pad 3, so as to adjust the thickness of bottom steel bar protective layer, avoid the problem that lower pad is broken, falls off and is not easy to reposition in the prior art method, and simultaneously, the beam steel bar system 6 is supported by customized pad 3 and transverse steel bar 5 in the utility model, and the load is entirely borne by customized pad 3 and transverse steel bar 5, so that it is fixed firmly, the accuracy of pad installation position is improved, and position deviation due to movable load is avoided;The length of transverse steel bar 5 exceeds the width of beam body 1, wherein the two ends of transverse steel bar 5 each exceed the width of beam body 1 by 50 mm, so that the part of the two ends of transverse steel bar 5 each exceeding the width of beam body 1 is connected with customized pad 3, which is beneficial to improve the practicability when transverse steel bar 5 and customized pad 3 are connected.
[0030] Refer to Figure 1 Characterized in that recess 4 is opened in the top of customized pad 3, and recess 4 is matched with transverse steel bar 5;The spacing between two adjacent groups of transverse steel bars 5 is greater than 1 m;
[0031] The groove 4 is opened on the top of the customized cushion block 3, the transverse steel bars 5 are arranged on the customized cushion block 3 and cannot move, the stability of the transverse steel bars 5 and the customized cushion block 3 after installation is improved, the weight of the beam steel bar system 6 is distributed on the transverse steel bars 5 and the customized cushion block 3, the installation spacing of the two groups of transverse steel bars 5 can be controlled within 1-1.5m, the installation spacing can also be determined according to the beam section size 5 and the on-site installation condition, the number of the customized cushion block 3 is reduced, the installation efficiency is improved, and the labor amount of workers is reduced.
[0032] With reference to Figures 1-3 The bottom end of the customized cushion block 3 is provided with an anti-skid layer 8; the material of the customized cushion block 3 is the same as that of the transverse steel bars 5; the anti-skid property of the customized cushion block 3 is enhanced through the anti-skid layer 8, and the stability of the customized cushion block 3 after installation is improved; the customized cushion block 3 is made of the tail of the remaining transverse steel bars 5 on site according to the height, so that the use amount of the customized cushion block 3 is saved, the construction waste is fully utilized, and the cost is greatly saved.
[0033] With reference to Figures 1-3 The number of the customized cushion block 3 is at least twice that of the transverse steel bars 5; through the number of the customized cushion block 3 being at least twice that of the transverse steel bars 5, it is ensured that one group of transverse steel bars 5 is matched with two groups of customized cushion blocks 3, so that the two ends of the several groups of transverse steel bars 5 can be effectively supported, and the practicability in use is improved.
[0034] Working principle: a transverse steel bar 5 is passed below the upper main steel bars 601 of the beam, the two ends of the transverse steel bar 5 are supported on the formwork plate surface 2 by using the height-customized customized cushion block 3, the height of the customized cushion block 3 is calculated and customized according to the design thickness of the beam bottom steel bar protection layer, after the upper main steel bars 601 of the beam are supported, the stirrup 7 and the bottom main steel bars 602 connected with the upper main steel bars 601 are also synchronously supported, so that the beam bottom steel bar protection thickness can be ensured, meanwhile, the construction personnel can control the height of the entire beam steel bar system 6 by adjusting the height of the upper main steel bars 601 of the beam, and the protection layer thickness can be more accurately controlled by adjusting the height of the customized cushion block 3, so as to adjust the bottom steel bar protection layer thickness, avoid the problem that the lower cushion block is broken, falls off and is not easy to be repositioned in the prior art method, meanwhile, the beam steel bar system 6 is supported by the customized cushion block 3 and the transverse steel bar 5, and the load is entirely borne by the customized cushion block 3 and the transverse steel bar 5, so the fixing is firm, the accuracy of the cushion block installation position is improved, the position deviation due to the active load is avoided, the groove 4 is opened on the top of the customized cushion block 3, the transverse steel bar 5 is arranged on the customized cushion block 3 and cannot move, the stability of the transverse steel bar 5 and the customized cushion block 3 after installation is improved;
[0035] The length of the transverse steel bars 5 exceeds the width of the beam body 1, and the two ends of the transverse steel bars 5 each exceeds the width of the beam body 1 by 50 mm, so that the part of the transverse steel bars 5 each exceeding the width of the beam body 1 is connected with the customized cushion block 3, which is beneficial to improve the practicability when the transverse steel bars 5 and the customized cushion block 3 are connected, and the weight of the beam steel bar system 6 is distributed on the transverse steel bars 5 and the customized cushion block 3, so that the installation interval of the two groups of transverse steel bars 5 can be controlled within 1-1.5 m, and the installation interval can also be determined according to the beam section size 5 and the on-site installation condition, so that the number of the customized cushion block 3 is reduced, the installation efficiency is improved, and the labor amount of workers is reduced;
[0036] Meanwhile, the anti-skid layer 8 enhances the anti-skid property of the customized cushion block 3 and improves the stability of the customized cushion block 3 after installation; the number of the customized cushion block 3 is at least twice the number of the transverse steel bars 5, so that one group of transverse steel bars 5 is matched with two groups of customized cushion blocks 3, thereby effectively supporting the two ends of the several groups of transverse steel bars 5, and the practicability in use is improved.
[0037] In addition, the material of the customized cushion block 3 is the same as the material of the transverse steel bars 5, so that the tail of the remaining transverse steel bars 5 can be used to manufacture the customized cushion block 3 according to the height, which not only saves the use amount of the customized cushion block 3, but also fully utilizes the construction waste, and greatly saves the cost.
[0038] The above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, and those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A device for adjusting the thickness of a beam bottom steel reinforcement protection layer, comprising a beam body (1), a formwork plate surface (2) and a beam steel reinforcement system (6), characterized in that, The beam steel bar system (6) comprises several groups of upper beam main bars (601) and bottom beam main bars (602), the several groups of upper beam main bars (601) are located above the beam body (1), the several groups of bottom beam main bars (602) are located below the beam body (1), the inside of the beam steel bar system (6) is provided with a stirrup (7), the several groups of upper beam main bars (601) and bottom beam main bars (602) are fixed by the stirrup (7), several groups of transverse steel bars (5) are arranged below the several groups of upper beam main bars (601), two groups of customized cushion blocks (3) are clamped below the transverse steel bars (5), the two groups of customized cushion blocks (3) are respectively located at the bottom of the two ends of the transverse steel bars (5), and the two groups of customized cushion blocks (3) are arranged at the top of the formwork plate (2).
2. The beam bottom reinforcement cover thickness adjusting device according to claim 1, characterized in that, The top of the customized cushion block (3) is provided with a groove (4), and the groove (4) is matched with the transverse steel bar (5).
3. The beam bottom reinforcement cover thickness adjusting device according to claim 1, characterized in that, The length of the transverse steel bar (5) exceeds the width of the beam body (1), and the transverse steel bar (5) is a steel bar with a diameter of φ22.
4. The beam bottom rebar cover thickness adjusting device according to claim 1, characterized in that, The spacing between the two adjacent groups of transverse steel bars (5) is greater than 1m.
5. The device for adjusting the thickness of beam bottom steel reinforcement protection layer according to claim 1, characterized in that, The bottom end of the customized cushion block (3) is provided with an anti-skid layer (8).
6. The device for adjusting the thickness of beam bottom steel reinforcement protection layer according to claim 1, characterized in that, The number of the customized cushion block (3) is at least twice the number of the transverse steel bar (5).
7. The device for adjusting the thickness of beam bottom steel reinforcement protection layer according to claim 1, characterized in that, The material of the customized cushion block (3) and the transverse steel bar (5) is the same.