Steel bar binding mould of variable cross-section UHPC prefabricated segmental beam

Abstract

The utility model provides a reinforcing steel bar binding mould of a variable cross-section UHPC prefabricated segmental beam, which is characterized by comprising a support, a bottom plate reinforcing steel bar positioning frame, a web transverse reinforcing steel bar positioning frame, a web vertical reinforcing steel bar positioning frame, a reinforcing steel bar positioning support rod and a reinforcing steel bar binding platform, the support is connected with the web transverse steel bar positioning frame, the web vertical steel bar positioning frame and the steel bar binding platform. Compared with the prior art, the steel bar binding mould has the advantages that different web transverse and vertical steel bar positioning frames and bottom plate steel bar positioning frames can be replaced or adjusted according to different sections of precast beams, multiple purposes can be achieved, operation is simple, construction funds and human input are reduced, the site utilization rate is increased, the designed steel bar binding mould is convenient to use, and the construction efficiency is improved. According to the steel bar binding mould, steel bars with one section can be formed at a time, binding precision is high, working efficiency is high, manpower input is reduced, numerical control cutting is adopted for the steel bar binding mould and the steel bar positioning toothed plate, the size of a positioning groove is accurate, and manual binding errors are avoided.

Description

Technical Field

[0001] This utility model is a steel reinforcement binding jig for a variable cross-section UHPC precast segmental beam, belonging to the field of building construction technology. Background Technology

[0002] In the construction of frame beams on high slopes, formwork reinforcement has always been a crucial aspect. Traditional reinforcement methods involve tying the positioning bars on both sides with wooden strips and steel bars. While this meets basic construction requirements to some extent, its inherent drawbacks are becoming increasingly apparent. Specifically, the stability and durability of the wooden strip and steel bar connection are relatively poor. Furthermore, traditional reinforcement methods are time-consuming, labor-intensive, and material-intensive. The procurement, processing, and tying of wooden strips and steel bars all require significant manpower, resources, and time, increasing construction costs and reducing efficiency.

[0003] In summary, the current formwork reinforcement measures used in the construction of high slope frame beams have many shortcomings, and a more stable, efficient, and economical reinforcement scheme is needed to replace them. Therefore, this application provides a rebar binding jig for variable cross-section UHPC precast segmental beams to solve the problems existing in the prior art and improve construction quality and efficiency. Utility Model Content

[0004] To address the issues of poor stability and durability of traditional formwork reinforcement methods, their inability to be applied to formwork of various specifications, and their low installation accuracy, the purpose of this utility model is to provide a rebar tying jig for variable cross-section UHPC precast segmental beams.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A rebar tying jig for a variable cross-section UHPC precast segmental beam is characterized by comprising a support, a bottom plate rebar positioning frame, a web transverse rebar positioning frame, a web vertical rebar positioning frame, rebar positioning supports, and a rebar tying platform. The support is connected to the web transverse rebar positioning frame, the web vertical rebar positioning frame, and the rebar tying platform. The web vertical rebar positioning frame is provided with sleeves at different intervals, and a rebar positioning support is fixedly inserted into the sleeve.

[0007] Furthermore, the support includes a vertical support, a horizontal connecting rod, and a scale. The vertical support is anchored to the concrete ground by pre-embedded bolts, and the scale is a millimeter-level scale.

[0008] Furthermore, the vertical support has positioning holes with fixed intervals to cooperate with the connecting flange to fix the web transverse reinforcement positioning frame, the web vertical reinforcement positioning frame and the reinforcement binding platform. The transverse connecting rod is set between the vertical supports, and the scale is fixed on the vertical support.

[0009] Furthermore, the bottom plate rebar positioning frame includes multiple transverse rebar positioning teeth and longitudinal rebar positioning teeth, which are welded together as one unit. Both the transverse rebar positioning teeth and the longitudinal rebar positioning teeth are provided with multiple rebar positioning grooves.

[0010] Furthermore, the web transverse reinforcement positioning frame includes a web transverse reinforcement positioning toothed plate and a fixing frame. The web transverse reinforcement positioning toothed plate is provided with multiple reinforcement positioning grooves. The web transverse reinforcement positioning toothed plate and the fixing frame are fixed to the bracket by bolts.

[0011] Furthermore, the web vertical reinforcement positioning frame includes a standard section reinforcement positioning frame and an adjusting section reinforcement positioning frame. The standard section reinforcement positioning frame and the adjusting section reinforcement positioning frame are fixed to the inner side of the bracket by bolts. Multiple sleeves are provided on the standard section reinforcement positioning frame with different spacings. The reinforcement positioning support rod is fixedly inserted through the sleeve.

[0012] Furthermore, the rebar tying platform includes a C-shaped step and a ladder. The rebar tying platform is fixed to the bracket by bolts, and the C-shaped step covers the ladder with openings on the left and right sides.

[0013] The beneficial effects of this utility model are:

[0014] All components of the design are connected to the bracket by bolts to form a stable whole. The assembly is highly accurate, not easily deformed, and easy to install and disassemble.

[0015] By replacing or adjusting different web horizontal and vertical reinforcement positioning frames and bottom plate reinforcement positioning frames according to different precast beam cross sections, one set can achieve multiple uses, is easy to operate, reduces construction capital and manpower input, and improves site utilization.

[0016] The designed rebar tying jig can form a rebar of one cross-section in one go, with high tying accuracy, high work efficiency, and reduced manpower input.

[0017] The rebar tying jigs and rebar positioning teeth plates applied for are all CNC cut, with precise positioning groove dimensions, avoiding human tying errors and improving the finished rebar cage qualification rate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the steel reinforcement binding jig for a variable cross-section UHPC precast segmental beam according to an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the steel reinforcement binding jig for the variable cross-section UHPC precast segmental beam according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the overall support structure according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the support structure according to an embodiment of the present utility model.

[0023] In the diagram: 1. Support; 11. Vertical support; 12. Horizontal connecting rod; 13. Ruler; 2. Bottom plate rebar positioning frame; 21. Longitudinal rebar positioning toothed plate; 22. Horizontal rebar positioning toothed plate; 3. Web plate horizontal rebar positioning frame; 31. Web plate horizontal rebar positioning toothed plate; 32. Fixing frame; 4. Web plate vertical rebar positioning frame; 41. Standard section rebar positioning frame; 42. Adjustable section rebar positioning frame; 5. Rebar positioning support rod; 6. Rebar binding platform; 61. C-shaped step; 62. Ladder. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a rebar tying jig for a variable cross-section UHPC precast segmental beam, comprising a support 1, a bottom plate rebar positioning frame 2, a web transverse rebar positioning frame 3, a web vertical rebar positioning frame 4, a rebar positioning support rod 5, and a rebar tying platform 6. The support 1 is connected to the web transverse rebar positioning frame 3, the web vertical rebar positioning frame 4, and the rebar tying platform 6. The web vertical rebar positioning frame 4 is provided with sleeves at different intervals, and the rebar positioning support rod 5 is fixedly inserted inside the sleeve.

[0026] See Figure 1-4 The support 1 includes a vertical support 11, a horizontal connecting rod 12, and a ruler 13. The vertical support 11 is anchored to the concrete ground by pre-embedded bolts. The ruler 13 is a millimeter-level ruler. Positioning holes with fixed intervals are provided on the vertical support 11 to cooperate with connecting flanges to fix the web transverse reinforcement positioning frame 3, the web vertical reinforcement positioning frame 4, and the reinforcement binding platform 6. The horizontal connecting rod 12 is arranged between the vertical supports 11. The ruler 13 is fixed on the vertical support 11. The bottom plate reinforcement positioning frame 2 includes multiple transverse reinforcement positioning teeth 22 and longitudinal reinforcement positioning teeth 21. The transverse reinforcement positioning teeth 22 and the longitudinal reinforcement positioning teeth 21 are welded together. Multiple reinforcement positioning grooves are provided on both the transverse reinforcement positioning teeth 22 and the longitudinal reinforcement positioning teeth 21. The web transverse reinforcement... The positioning frame 3 includes a web transverse rebar positioning toothed plate 31 and a fixing frame 32. The web transverse rebar positioning toothed plate 31 is provided with multiple rebar positioning grooves. The web transverse rebar positioning toothed plate 31 and the fixing frame 32 are fixed to the support 1 by bolts. The web vertical rebar positioning frame 4 includes a standard section rebar positioning frame 41 and an adjusting section rebar positioning frame 42. The standard section rebar positioning frame 41 and the adjusting section rebar positioning frame 42 are fixed to the inside of the support 1 by bolts. Multiple sleeves are provided on the standard section rebar positioning frame 41 with different spacing. The rebar positioning support rod 5 is fixed through the sleeve. The rebar binding platform 6 includes a C-shaped step 61 and a ladder 62. The rebar binding platform 6 is fixed to the support 1 by bolts. The C-shaped step 61 covers the ladder 62 with left and right openings.

[0027] In practice, the support 1 is anchored to a flat concrete surface by pre-embedded bolts. Horizontal connecting rods 12 are installed between the vertical supports 11. The remaining components are connected to the support 1 by bolts, forming a stable whole, ensuring the equipment does not deform during construction and is safe and reliable. A millimeter-level ruler 13 is fixed to the vertical support 11, allowing workers to accurately check the position of the reinforcing bars. The web transverse reinforcing bar positioning frame 3 is bolted to the support 1. Three sets (upper, middle, and lower) are installed according to the height of the precast segment beam section. The extension length of the web transverse reinforcing bar positioning tooth plate 31 is adjusted according to the required thickness of the reinforcing bar protective layer. The relative position of the web transverse reinforcing bar positioning tooth plate 31 and the fixing frame 32 is adjusted through the elongated hole to accommodate deviations in the binding of the web ring reinforcement and the bottom slab longitudinal reinforcement. The web vertical reinforcing bar positioning frame 4 is installed according to different precast beams. The cross-section can be replaced or the installation position adjusted to adapt to the steel bar spacing of different precast segment beams. The steel bar positioning support rod 5 can accurately position multiple steel bars at once through the sleeve of the vertical steel bar positioning frame 4 in the web, which greatly improves the work efficiency. The steel bar binding platform 6 is fixed to the support 1 with bolts. The C-shaped step 61 covers the ladder 62 on the left and right. The ladder 62 has a guard ring with openings on the left and right sides, which can facilitate the entry and exit of the platform and provide a safe and convenient working platform for construction personnel. The bottom plate steel bar positioning frame 2 is fixed on a flat concrete foundation, 15cm above the ground, to prevent the steel bars from being soaked by rainwater. The longitudinal and transverse steel bars of the bottom plate of the precast beam are placed into the steel bar positioning groove one and steel bar positioning groove two in sequence according to the different layout requirements of the precast beams. The positioning is accurate and the work efficiency is high.

[0028] The specific steps are as follows: the rebar tying steps, the rebar hoisting and placement into the formwork steps, and the rebar tying steps for the matching precast beam sections:

[0029] The steps for tying the reinforcing bars are as follows: Before starting to tie the reinforcing bars, fix the corresponding web transverse reinforcing bar positioning frame 3 and web vertical reinforcing bar positioning frame 4 according to the cross section of the segmental beam. Insert multiple reinforcing bar positioning rods 5 into the sleeves of the web vertical reinforcing bar positioning frame 4. Place the reinforcing bars at the corresponding positions into the corresponding positioning slots and reinforcing bar positioning rods 5 in sequence, and tie them in sequence according to the construction technical requirements.

[0030] The steps for hoisting the reinforcing bars into the formwork are as follows: when the reinforcing bars are tied and ready to be hoisted into the formwork, pull out the reinforcing bar positioning support rod 5, and at the same time release the fixing bolts at the front end of the web transverse reinforcing bar positioning frame 3. The web transverse reinforcing bar positioning frame 3 rotates around the position of the rear fixing bolt, thereby opening up the position of the web reinforcing bars and avoiding interference during hoisting.

[0031] The steps for binding the reinforcing bars of the precast beam segment are as follows: Before binding the reinforcing bars, adjust or replace the web transverse reinforcing bar positioning frame 3 and web vertical reinforcing bar positioning frame 4 of the previous beam segment according to the cross section of the segment beam. Reset the web transverse reinforcing bar positioning frame 3, and then insert multiple reinforcing bar positioning rods 5 into the sleeves of the web vertical reinforcing bar positioning frame 4. Repeat the above steps for binding the reinforcing bars.

[0032] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A reinforcement tying jig for a variable cross-section UHPC precast segmental beam, characterized in that: The utility model provides a kind of prefabricated reinforced concrete floor formwork, including support (1), bottom plate steel bar positioning frame (2), web transverse steel bar positioning frame (3), web vertical steel bar positioning frame (4), steel bar positioning support rod (5) and steel bar binding platform (6), the support (1) is connected the web transverse steel bar positioning frame (3), the web vertical steel bar positioning frame (4) and the steel bar binding platform (6) on, the web vertical steel bar positioning frame (4) is equipped with different spacing sleeve, the sleeve is fixed and is provided with steel bar positioning support rod (5) in the steel bar positioning support rod (5).

2. The reinforcement tying jig for the variable cross-section UHPC precast segmental beam according to claim 1, characterized in that: The support (1) includes vertical support (11), transverse connecting rod (12) and scale (13), the vertical support (11) is anchored on the concrete ground by pre-buried bolt, and the scale (13) is a millimeter-level scale.

3. The reinforcement tying jig for the variable cross-section UHPC precast segmental beam according to claim 2, characterized in that: The vertical support (11) is provided with fixed-interval positioning holes to connect flanges to fix the web transverse steel bar positioning frame (3), the web vertical steel bar positioning frame (4) and the steel bar binding platform (6), the transverse connecting rod (12) is arranged between the vertical supports (11), and the vertical supports (11) are fixed with the scale (13).

4. The reinforcement tying jig for the variable cross-section UHPC precast segmental beam according to claim 3, characterized in that: The bottom plate steel bar positioning frame (2) includes a plurality of transverse steel bar positioning tooth plates (22) and longitudinal steel bar positioning tooth plates (21), the transverse steel bar positioning tooth plates (22) and the longitudinal steel bar positioning tooth plates (21) are welded together, and a plurality of steel bar positioning grooves are arranged on the transverse steel bar positioning tooth plates (22) and the longitudinal steel bar positioning tooth plates (21).

5. The reinforcement tying jig for the variable cross-section UHPC precast segmental beam according to claim 4, characterized in that: The web transverse steel bar positioning frame (3) includes a web transverse steel bar positioning tooth plate (31) and a fixing frame (32), a plurality of steel bar positioning grooves are arranged on the web transverse steel bar positioning tooth plate (31), and the web transverse steel bar positioning tooth plate (31) and the fixing frame (32) are fixed on the support (1) by bolts.

6. The reinforcement tying jig for the variable cross-section UHPC precast segmental beam according to claim 5, characterized in that: The web vertical steel bar positioning frame (4) includes a standard section steel bar positioning frame (41) and an adjustment section steel bar positioning frame (42), the standard section steel bar positioning frame (41) and the adjustment section steel bar positioning frame (42) are fixed on the inner side of the support (1) by bolts, the sleeves are a plurality of sleeves with different spacings arranged on the standard section steel bar positioning frame (41), and the steel bar positioning support rod (5) is fixed and penetrates the sleeves.

7. The reinforcement tying jig for the variable cross-section UHPC precast segmental beam according to claim 6, characterized in that: The steel bar binding platform (6) includes a C-shaped pedal (61) and a ladder (62), the steel bar binding platform (6) is fixed on the support (1) by bolts, and the C-shaped pedal (61) wraps around the left and right openings of the ladder (62).

Images