A steel box composite beam prefabricated formwork guardrail steel bar positioning frame

Abstract

The present invention discloses a steel box composite beam prefabricated formwork guardrail steel bar positioning frame, comprising a positioning frame; a reaction force piece for force transmission is arranged at one end of the positioning frame; a limiting assembly for positioning the guardrail steel bar is arranged at the other end of the positioning frame; the positioning frame is connected to the prefabricated formwork through the reaction force piece; a plurality of exposed steel bars are arranged on the side of the prefabricated formwork close to the positioning frame; the positioning frame is detachably positioned on the exposed steel bars through movable buckles; a positioning assembly for positioning the guardrail steel bar is arranged in the middle of the positioning frame; the guardrail steel bar is welded to the exposed steel bar after positioning; the present invention can enable the rapid positioning and welding of the bridge deck guardrail steel bars, has a simple and reasonable structure, accelerates the construction efficiency, and transfers the working environment from the bridge deck to the prefabrication site. This structure is generally applicable to the construction of bridge deck guardrail steel bars under similar conditions, can shorten the construction period, improve the construction quality, and reduce the danger of high-altitude operations.

Description

Technical Field

[0001] The invention relates to the technical field of bridge deck guardrail construction, in particular to a steel box composite beam prefabricated template guardrail steel bar positioning frame. Background Art

[0002] Traditional bridge guardrail construction is done on-site, which is difficult, time-consuming and dangerous. Manual steel bar positioning results in large errors and takes a long time. It is necessary to provide a steel box composite beam prefabricated formwork guardrail steel bar positioning frame to solve the technical problems existing in the prior art. Summary of the invention

[0003] The purpose of the present invention is to provide a steel box composite beam prefabricated formwork guardrail reinforcement positioning frame, which can enable the rapid positioning and welding of bridge deck guardrail reinforcement, has a simple and reasonable structure, accelerates construction efficiency, and transfers the working environment from the bridge deck to the prefabrication site. This structure is generally applicable to the construction of bridge deck guardrail reinforcement under similar conditions, which can shorten the construction period, improve the construction quality, and reduce the danger of high-altitude operations.

[0004] The present invention is achieved through the following technical solutions:

[0005] A steel box composite beam precast formwork guardrail steel bar positioning frame, comprising a positioning frame; a reaction force piece for transmitting force is arranged at one end of the positioning frame; a limiting assembly for limiting the guardrail steel bar is arranged at the other end of the positioning frame; the positioning frame is connected to the precast formwork via the reaction force piece; a plurality of exposed steel bars are arranged on one side of the precast formwork close to the positioning frame; the positioning frame is detachably positioned on the exposed steel bars by means of movable buckles; a positioning assembly for positioning the guardrail steel bar is arranged in the middle of the positioning frame; the guardrail steel bar is welded to the exposed steel bar after positioning is completed.

[0006] Furthermore, the reaction force member is an angle steel.

[0007] Furthermore, the limiting assembly is a limiting steel plate; and a plurality of limiting grooves are arranged on the limiting steel plate.

[0008] Furthermore, the positioning component is a positioning steel plate; a plurality of positioning grooves are arranged on the positioning steel plate.

[0009] Furthermore, two positioning steel plates are provided, and are symmetrically arranged on the positioning frame front and back.

[0010] Furthermore, the positioning frame is welded by square tubes and square steels.

[0011] Furthermore, the portion of the positioning frame on which the positioning assembly is mounted is tilted upward.

[0012] Furthermore, the buckle height of the movable buckle is the same as the height of the square steel.

[0013] Beneficial effects of the present invention:

[0014] Compared with the prior art, the present invention can quickly position and weld the bridge deck guardrail steel bars, has a simple and reasonable structure, accelerates construction efficiency, and transfers the working environment from the bridge deck to the prefabrication site. At the same time, due to its simplicity and lightness, low production cost, it is easy to install and disassemble, and has a low production cost, which saves construction time, improves construction quality, and reduces the danger of the construction process. After the positioning frame is used up in the later stage, it can be recycled and reused. This structure is generally applicable to the construction of bridge deck guardrail steel bars under similar conditions, and is economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a steel box composite beam prefabricated formwork reinforcement positioning frame assembled and ready for installation in an embodiment of the present invention;

[0016] Figure 2 It is a side schematic diagram of a steel box composite beam prefabricated formwork reinforcement positioning frame according to an embodiment of the present invention;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the steel box composite beam prefabricated template reinforcement positioning frame according to an embodiment of the present invention;

[0018] Figure 4 It is a schematic diagram of the assembly of the steel box composite beam prefabricated template reinforcement positioning frame and the prefabricated template in an embodiment of the present invention;

[0019] Figure 5 This is the construction drawing for on-site welding of prefabricated formwork guardrail reinforcement for general steel box composite beams;

[0020] Figure 6 This is the construction drawing for on-site welding of prefabricated formwork guardrail reinforcement for general steel box composite beams;

[0021] Figure 7 Construction drawings for welding steel bars of prefabricated formwork guardrails of steel box composite beams in prefabrication plants;

[0022] Figure 8 Construction drawing for welding steel bars of precast formwork guardrail of steel box composite beam in precast plant.

[0023] In the attached figure: 1- angle steel; 2- movable buckle; 3- positioning steel plate; 4- limiting steel plate; 5- positioning frame; 6- prefabricated formwork; 7- exposed steel bars; 8- guardrail steel bars. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In the present invention, unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense, for example, "connection" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features; in addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] like Figures 1 to 4As shown, a steel box composite beam prefabricated formwork guardrail steel bar positioning frame includes a positioning frame 5; one end of the positioning frame 5 is provided with a reaction force piece for transmitting force; the other end of the positioning frame 5 is provided with a limiting component for limiting the guardrail steel bar 8; the positioning frame 5 is connected to the prefabricated formwork 6 through the reaction force piece; a plurality of exposed steel bars 7 are provided on the side of the prefabricated formwork 6 close to the positioning frame 5; the positioning frame 5 is detachably positioned on the exposed steel bars 7 by means of an active buckle 2; a positioning component for positioning the guardrail steel bar 8 is provided in the middle of the positioning frame 5; the guardrail steel bar 8 is welded to the exposed steel bar 7 after positioning is completed. The present invention can quickly position and weld the bridge deck guardrail steel bars 8, has a simple and reasonable structure, accelerates construction efficiency, and transfers the working environment from the bridge deck to the prefabrication site. At the same time, due to its simplicity and lightness, low production cost, and easy installation and disassembly, it has a low production cost, saves construction time, improves construction quality, and reduces the danger of the construction process. After the positioning frame is used up in the later stage, it can be recycled and reused. This structure is generally applicable to the construction of bridge deck guardrail steel bars under similar conditions, and is economical and practical.

[0029] It should be noted that in the prior art, the welding of the guardrail steel bars of the precast formwork of the steel box composite beam requires high-altitude side work. During the construction process, the error is large, the time is long, and the risk is high. By adopting the steel box composite beam precast formwork steel bar positioning frame, the welding process of the guardrail steel bars of the steel box composite beam precast formwork can be transferred to the prefabrication site, reducing the risk of bridge deck operations. At the same time, the steel box composite beam precast formwork steel bar positioning frame has the characteristics of accurate positioning, ensuring the control accuracy of the welding line shape of the guardrail steel bar 8, and the structure is light and movable, which improves construction efficiency.

[0030] It should be noted that, according to different needs, steel box composite beam prefabricated formwork reinforcement positioning frames of different sizes can be designed. Since the steel box composite beam prefabricated formwork reinforcement positioning frames have low production costs, they can be customized according to different project requirements, providing conditions for saving construction period and reducing construction risks.

[0031] Specifically, in the present embodiment, the reaction member is an angle steel 1. It should be noted that the angle steel 1 is used as a reaction point and the prefabricated template 6 provides a reaction force, so that the positioning frame 5 is fixed on the prefabricated template 6.

[0032] Specifically, in this embodiment, the limiting component is a limiting steel plate 4; a plurality of limiting grooves are provided on the limiting steel plate 4. It should be noted that the limiting steel plate 4 is used to limit the longitudinal movement of the guardrail steel bar 8, and the guardrail steel bar 8 is placed on the limiting groove to ensure that the end of the guardrail steel bar 8 is flat.

[0033] Specifically, in the present embodiment, the positioning component is a positioning steel plate 3; a plurality of positioning grooves are provided on the positioning steel plate 3. It should be noted that the positioning steel plate 3 is used to limit the lateral movement of the guardrail steel bar 8, and the accuracy of the placement of the guardrail steel bar 8 is ensured by placing the guardrail steel bar 8 on the positioning groove, further improving the positioning accuracy of the guardrail steel bar 8 and ensuring the control accuracy of the welding line of the guardrail steel bar 8.

[0034] Specifically, in this embodiment, two positioning steel plates 3 are provided, and are symmetrically arranged on the positioning frame 5 front and back.

[0035] Specifically, in this embodiment, the positioning frame 5 is formed by welding square tubes and square steels.

[0036] Specifically, in this embodiment, the part of the positioning frame 5 where the positioning assembly is installed is tilted upward. It should be noted that the tilted part of the positioning frame 5 is consistent with the shape of the guardrail steel bar 8, which facilitates the positioning of the guardrail steel bar 8.

[0037] Specifically, in this embodiment, the buckle height of the movable buckle 2 is the same as the height of the square steel.

[0038] Example 1

[0039] Reference Figures 5 to 8 The method for using the steel box composite beam prefabricated template steel bar positioning frame of the present invention is as follows:

[0040] (1) Arrangement of steel box composite beam precast formwork reinforcement positioning frame

[0041] Arrange the steel box composite beam precast formwork reinforcement positioning frame according to the construction conditions. The construction conditions are various, and the reasonable arrangement of the steel box composite beam precast formwork reinforcement positioning frame under similar conditions is emphasized.

[0042] The steel box composite beam prefabricated formwork reinforcement positioning frame is suitable for use in a variety of sites. For example, reinforcement welding operations can be carried out in advance in the prefabrication site to shorten the construction period.

[0043] (2) Steel box composite beam prefabricated formwork reinforcement positioning frame

[0044] See also Figure 1 As shown, the size of the positioning frame 5 is determined according to the bending resistance and deformation resistance required by the steel box composite beam precast formwork reinforcement positioning frame. The reasonable structural size of the steel box composite beam precast formwork reinforcement positioning frame is determined according to the weight. Reliable angle steel 1, movable buckle 2, positioning steel plate 3, limit steel plate 4, and positioning frame 5 are set according to the weight and size of the steel box composite beam precast formwork reinforcement positioning frame and the guardrail reinforcement 8.

[0045] The working principle of the embodiment of the present invention is as follows:

[0046] The steel box composite beam precast formwork reinforcement positioning frame is light in weight and simple in structure, so it can be quickly disassembled and assembled and recycled. The positioning steel plate 3 and the limit steel plate 4 limit the longitudinal movement of the guardrail reinforcement 8 to ensure accurate positioning. The positioning frame 5 is welded with square tubes to strengthen the overall connection to avoid deformation of the steel box composite beam precast formwork reinforcement positioning frame. The movable buckle 2 can connect the positioning frame 5 and the precast formwork into a whole at the construction site. After the guardrail reinforcement 8 is positioned, it is welded to the exposed reinforcement 7, thereby completing the rapid positioning and welding of the bridge deck guardrail reinforcement 8.

[0047] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A steel box composite beam prefabricated formwork guardrail steel bar positioning frame, Features: It comprises a positioning frame; a reaction force piece for transmitting force is arranged at one end of the positioning frame; a limiting assembly for limiting the guardrail steel bar is arranged at the other end of the positioning frame; the positioning frame is connected to the prefabricated formwork through the reaction force piece; a plurality of exposed steel bars are arranged on the side of the prefabricated formwork close to the positioning frame; the positioning frame is detachably positioned on the exposed steel bars through movable buckles; a positioning assembly for positioning the guardrail steel bar is arranged in the middle of the positioning frame; the guardrail steel bar is welded to the exposed steel bar after positioning is completed; the limiting assembly is a limiting steel plate; the limiting steel plate A plurality of limiting grooves are provided; the limiting steel plate is used to limit the longitudinal movement of the guardrail steel bars, and by placing the guardrail steel bars on the limiting grooves, the ends of the guardrail steel bars are ensured to be flat; the positioning component is a positioning steel plate; a plurality of positioning grooves are provided on the positioning steel plate; the positioning steel plate is used to limit the lateral movement of the guardrail steel bars, and by placing the guardrail steel bars on the positioning grooves, the accuracy of the placement of the guardrail steel bars is ensured; the positioning frame is welded by square tubes and square steels; the part of the positioning frame on which the positioning component is installed is tilted upward; the tilted part of the positioning frame is consistent with the shape of the guardrail steel bars.

2. A steel box composite beam prefabricated formwork guardrail reinforcement positioning frame according to claim 1, Features: The reaction force member is an angle steel.

3. A steel box composite beam prefabricated formwork guardrail reinforcement positioning frame according to claim 1, Features: The positioning steel plates are provided in two pieces and are symmetrically arranged on the positioning frame.

4. A steel box composite beam prefabricated formwork guardrail reinforcement positioning frame according to claim 1, Features: The buckle height of the movable buckle is the same as the height of the square steel.

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