A precast beam and slab forming template structure

Abstract

The present invention belongs to the technical field of precast bridge construction, and particularly relates to a forming template structure for precast beam slabs. The template structure is arranged at the upper end of an outer formwork frame body and includes: a plurality of comb-shaped templates and a plurality of fixing jigs; a single comb-shaped template includes a comb-shaped plate, a bottom plate arranged at the lower end of the comb-shaped plate and connected to the outer formwork frame body, and a positioning plate arranged at the side end of the comb-shaped plate; a single fixing jig is located between two adjacent comb-shaped templates and fixes the two comb-shaped templates simultaneously, and a single fixing jig includes a fixing plate detachably connected to the outer formwork frame body, and an upper clamping plate and a lower clamping plate which are arranged at the end of the fixing plate far away from the outer formwork frame body and are arranged in parallel with each other. On the basis of adopting a split comb-shaped template, the present invention simplifies the structure of the comb-shaped template itself and reduces its mold opening cost; at the same time, the fixing of the comb-shaped template is completed through the cooperative connection between the fixing jig and the comb-shaped template, and the installation / demolition work of the comb-shaped template can be quickly completed, having the advantage of high working efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of precast bridge construction, and particularly relates to a precast beam and slab forming formwork structure. Background Art

[0002] During the bridge construction process, considering construction efficiency and quality, more and more projects adopt the construction method of precast box girders; during the precast process, one of the necessary large-scale construction equipment is the formwork device for box girder pouring; combined with the current intelligent beam factory design, the formwork needs to be quickly demolded when the concrete pouring is completed and meets the demolding conditions, and at the same time, it can be quickly formworked to reduce the formwork removal and erection time.

[0003] Most of the existing formwork removal equipment has a simple structure. In particular, the installation and removal construction of the formwork at the top of the box girder diaphragm is relatively difficult. The traditional formwork for sealing at the diaphragm and the upper comb-shaped plate are integrated, making installation and formwork removal difficult, resulting in a slow precast speed of the beam and slab and affecting the overall construction progress of the project.

[0004] The document with the authorization announcement number CN218535031U discloses a comb-shaped formwork structure for the top of the precast beam and slab diaphragm, including: an inverted comb-shaped formwork for inserting along the bridge width direction to the top of the middle diaphragm of the bridge, and a first reserved groove for placing the exposed main reinforcement of the diaphragm and a second reserved groove for placing the exposed stirrups of the diaphragm are reserved on the inverted comb-shaped formwork; two upright comb-shaped formworks detachably connected to the opposite outer sides of the inverted comb-shaped formwork through a connection structure, and a third reserved groove for placing the protruding main reinforcement at the top of the wing flange plates on both sides of the bridge is reserved on each of the two upright comb-shaped formworks. This structure changes the integrated comb-shaped formwork into a multi-segment comb-shaped formwork, which is beneficial to the segmented installation and removal of the formwork, reduces the disassembly and installation difficulty and danger, and improves the construction efficiency.

[0005] However, this solution still has the following problems: First, the comb-shaped plate itself needs to be re-molded and precast, with a high cost; second, there are requirements for the sequence of processes when disassembling this multi-segment comb-shaped formwork, that is, first remove the inverted comb-shaped formwork and then remove the upright comb-shaped formwork, which is not convenient and fast enough.

[0006] Therefore, the inventor of the present invention has proposed a precast beam and slab forming formwork structure to solve the above technical problems. Summary of the Invention

[0007] Aiming at the above existing problems, the purpose of the present invention is to provide a precast beam and slab forming formwork structure. On the basis of adopting a split comb-shaped formwork, the structure of the comb-shaped formwork itself is simplified, and its mold opening cost is reduced; at the same time, the fixing of the comb-shaped formwork is completed through the cooperation connection between the fixing fixture and the comb-shaped formwork, and the installation / removal work of the comb-shaped formwork can be quickly completed, having the advantage of high work efficiency.

[0008] The specific technical solution of the present invention is as follows:

[0009] A precast beam and slab forming template structure is arranged at the upper end of an outer formwork frame body, and includes:

[0010] A plurality of comb templates installed along the length direction of the outer formwork frame body; each single comb template includes a comb plate, a bottom plate arranged at the lower end of the comb plate and connected to the outer formwork frame body, and a positioning plate arranged at the side end of the comb plate;

[0011] A plurality of fixing jigs distributed along the length direction of the outer formwork frame body; each single fixing jig is located between two adjacent comb templates and fixes the two comb templates simultaneously; each single fixing jig includes a fixing plate detachably connected to the outer formwork frame body, an upper clamping plate and a lower clamping plate which are arranged at one end of the fixing plate away from the outer formwork frame body and are arranged in parallel; a positioning groove for inserting the positioning plate is formed between the upper clamping plate and the lower clamping plate.

[0012] As a further preference of the present invention, the fixing jig further includes a clamping member; the clamping member includes a fixed rod portion with one end abutted against the upper surface of the outer formwork frame body, and a telescopic cylinder portion with one end passing through the lower clamping plate and acting on the lower surface of the positioning plate.

[0013] As a further preference of the present invention, the fixed rod portion includes a vertical threaded rod; the telescopic cylinder portion includes a cylinder body passing through the lower clamping plate, a flat plate arranged on the outer periphery of the cylinder body at the lower end of the lower clamping plate, a first fastening nut screwed on the vertical threaded rod, located at the lower end of the lower clamping plate and abutted against the flat plate, and a spring arranged between the lower surface of the lower clamping plate and the flat plate; the spring makes the flat plate have a tendency to approach the lower clamping plate.

[0014] As a further preference of the present invention, the fixed rod portion further includes a first extension plate arranged at the lower end of the vertical threaded rod; the telescopic cylinder portion further includes a second extension plate arranged at the upper end of the cylinder body.

[0015] As a further preference of the present invention, the fixing jig further includes a mounting plate arranged on the fixing plate and located at the lower end of the lower clamping plate, and an opening for the vertical threaded rod to pass through is arranged on the mounting plate; a second fastening nut screwed on the vertical threaded rod and abutted against the upper surface of the mounting plate is provided.

[0016] As a further preference of the present invention, the fixing jig further includes a positioning member; the positioning member at least includes a side vertical plate simultaneously acting on the side ends of two adjacent bottom plates.

[0017] As a further preference of the present invention, the positioning member further includes a first cross plate disposed at the upper end of the side vertical plate and extending to the upper end of the mounting plate, and a side opening groove disposed on the first cross plate and adapted to pass through the vertical threaded rod; the second fastening nut abuts against the upper surface of the first cross plate.

[0018] As a further preference of the present invention, the fixing jig further includes an auxiliary member; the auxiliary member includes a second cross plate adapted to be inserted into a positioning groove formed between the upper clamping plate and the lower clamping plate, and a bracket disposed at an outer end of the second cross plate located in the positioning groove for supporting the binding steel bars.

[0019] As a further preference of the present invention, the auxiliary member further includes an anti-slip layer disposed on the upper surface of the second cross plate.

[0020] As a further preference of the present invention, a partition is disposed in the middle of the positioning groove formed between the upper clamping plate and the lower clamping plate.

[0021] The beneficial effects of the present invention are as follows:

[0022] The precast beam and slab forming template structure provided by the present invention simplifies the structure of the split comb template itself, reduces the mold opening cost of the comb template, and at the same time completes the connection between the split comb templates by clamping two comb templates at both ends of the fixing jig respectively. The clamping connection with low disassembly and assembly difficulty is adopted to replace the existing methods such as bolt connection with high disassembly and assembly difficulty, so that the connection relationship between the two comb templates can be quickly released by removing one fixing jig, greatly improving the working efficiency.

[0023] When disassembling the comb template of the precast beam and slab forming template structure provided by the present invention, the comb template at any different position can be arbitrarily selected for disassembly, and at the same time, no cooperation between construction workers is required, and a single person can perform the disassembly, greatly reducing the disassembly difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG Figure 1 is the front view of the present invention in the assembled state.

[0025] FIG Figure 2 is a partial enlarged structural schematic diagram of area A in FIG Figure 1 of the present invention.

[0026] FIG Figure 3 is a partial enlarged structural schematic diagram of FIG Figure 2 of the present invention.

[0027] FIG Figure 4 is the top view of the lower clamping plate of the present invention.

[0028] FIG Figure 5 is the top view of the mounting plate of the present invention.

[0029] Description of the drawings: Binding steel bars a, transverse horizontal bars b of the top plate, external formwork frame 1, comb-tooth formwork 2, and fixing fixture 3;

[0030] Comb-tooth plate 21, bottom plate 22, positioning plate 23;

[0031] Fixing plate 31, upper clamping plate 32, lower clamping plate 33, clamping member 34, mounting plate 35, positioning member 36, auxiliary member 37, partition plate 38;

[0032] Vertical threaded rod 341, cylinder 342, flat plate 343, first fastening nut 344, spring 345, first extension plate 346, second extension plate 347;

[0033] Side vertical plate 361, first horizontal plate 362, side opening groove 363, second fastening nut 364, gasket 365;

[0034] Second horizontal plate 371, support 372, anti-slip layer 373. Detailed implementation manners

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is commonly placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0036] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, terms such as "set" and "connect" should be understood in a broad sense. For example, "connect" 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, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] First of all, it should be pointed out that the precast beam and slab forming template described in the present invention is the top template part for preparing the entire beam body, that is, after the outer formwork frame (side formwork) is erected, it is installed at the upper end of the outer formwork frame to assist in the binding of the top reinforcement and is used for the forming of the beam slab. The outer formwork frame is an existing structure, composed of two symmetrical frames. The main body of the frame is formed by welding steel frames and I-beams. Jacks and other power structures can be configured at the lower end and side end, and tracks parallel to the length direction of the frame are also configured on the outside, ultimately realizing the up and down movement and translation along the track of the outer formwork frame to achieve rapid demoulding. The precast beam and slab forming template provided by the present invention is installed at the upper end of the outer formwork frame, and its function is to fix the comb-shaped template on the outer formwork frame to assist in the binding of the top reinforcement.

[0038] The problems existing in the implementation of the existing scenario are that the comb-shaped template is generally a long board with the same length as the box girder, or several boards with the same length are formed by welding. During formwork erection, due to its long length, multiple workers need to cooperate to complete it, which takes a long time; during demoulding, it is necessary to first release the connection between the comb-shaped template and the outer formwork frame, then remove the outer formwork frame, and finally release the binding relationship between the comb-shaped template and the exposed reinforcement on the top of the formed beam body before the entire comb-shaped template can be removed. Moreover, there are also relatively large safety hazards when removing the overweight and overlong comb-shaped template.

[0039] Based on this, the present invention proposes a precast beam and slab forming template structure, and the following are specific embodiments:

[0040] Refer to Appendix Figure 1 ~Appendix Figure 5 As shown, this embodiment provides a precast beam and slab forming template structure, which is arranged at the upper end of the outer formwork frame 1 and includes:

[0041] A plurality of comb-shaped templates 2 installed along the length direction of the outer formwork frame 1; each comb-shaped template 2 includes a comb-shaped plate 21, a bottom plate 22 arranged at the lower end of the comb-shaped plate 21 and connected to the outer formwork frame 1, and a positioning plate 23 arranged at the side end of the comb-shaped plate 21. Among them, as the name implies, the comb-shaped plate 21 refers to a vertical plate with equally spaced teeth formed on the top. The bottom plate 22 at the lower end of the comb-shaped plate 21 is used for supporting on the upper surface of the outer formwork frame 1; the positioning plate 23 is located at the middle side end of the comb-shaped plate 21, parallel to the bottom plate 22 and with a length greater than the bottom plate 22, and is used for connecting with the following fixing fixture 3.

[0042] Multiple fixing jigs 3 distributed along the length direction of the outer mold frame body 1; a single fixing jig 3 is located between two adjacent comb tooth templates 2 and fixes the two comb tooth templates 2 simultaneously; a single fixing jig 3 includes a fixing plate 31 detachably connected to the outer mold frame body 1, and an upper clamping plate 32 and a lower clamping plate 33 which are arranged in parallel at one end of the fixing plate 31 away from the outer mold frame body 1; a positioning groove for inserting the positioning plate 23 is formed between the upper clamping plate 32 and the lower clamping plate 33. Among them, the fixing plate 31 is used to penetrate between two I-beams with opposite openings of the outer mold frame body 1 for connecting with the outer mold frame body 1; a plurality of threaded holes distributed at intervals can be arranged on the fixing plate 31, and fixing holes matching the threaded holes also need to be arranged on the outer mold frame body 1. First, adjust the position of the fixing plate 31 so that the appropriate threaded hole is aligned with the fixing hole, and then complete the fixed connection between the fixing plate 31 and the outer mold frame body 1 through bolts. The upper clamping plate 32 and the lower clamping plate 33 have the same specifications, and the distance between the two is greater than or equal to the plate thickness of the positioning plate 23 to complete the clamping of the positioning plate 23. In order to prevent the positioning plate 23 from shaking, it is necessary to ensure that the depth of the positioning plate 23 entering the positioning groove accounts for more than 1 / 2 of the length of the positioning plate 23.

[0043] The functions that the above structure can basically achieve are as follows: During installation, the fixing jigs 3 are installed on the outer mold frame body 1 at fixed intervals along the length direction of the outer mold frame body 1. The position of the fixing jig 3 is the position where the two comb tooth templates 2 are connected. Taking one comb tooth template 2 as an example, place the bottom plate 22 on the upper surface of the outer mold frame body 1, and insert the positioning plate 23 into the positioning groove formed between the upper clamping plate 32 and the lower clamping plate 33. The two clamping plates fix the positioning plate 23. Through the two connection methods of the abutment between the bottom plate 22 and the outer mold frame body 1 and the snap connection between the positioning plate 23 and the fixing jig 3, the comb tooth template 2 is fixed simultaneously from the up-down and left-right directions, completing the fixing of the comb tooth template 2. And two adjacent comb tooth templates 2 abut against each other in the positioning groove, limiting their positions in the length direction (front-back direction) of the outer mold frame body 1, further ensuring the fixing effect of the comb tooth template 2 and improving the connection strength between the two comb tooth templates 2. During disassembly, only need to release the connection between the outer mold frame body 1 and the fixing jig 3, and the fixing jig 3 can be translated along the left-right direction until the two comb tooth templates 2 fixed in the positioning groove are separated from the fixing jig 3. When the fixing jigs 3 at both ends of the comb tooth template 2 are disassembled, the comb tooth template 2 can be removed.

[0044] The advantages of the above structure are as follows: First, by replacing the integral comb tooth template with a split comb tooth template, the split comb tooth template is shorter in length, lighter in weight, and the required number of workers is also reduced, which helps to improve work efficiency; Second, by clamping the split comb tooth template with a fixing jig, the connection relationship between the fixing jig and the comb tooth template can be quickly released, greatly reducing the disassembly difficulty and improving work efficiency.

[0045] As some preferred embodiments, the fixed fixture 3 further includes a clamping member 34; the clamping member 34 includes a fixed rod portion with one end abutted against the upper surface of the outer mold frame body 1, and a telescopic cylinder portion with one end passing through the lower clamping plate 33 and acting on the lower surface of the positioning plate 23. Among them, the telescopic cylinder portion can be connected to the fixed rod portion by a threaded connection, and the telescopic cylinder portion has the function of adjusting the height position on the fixed rod portion. The telescopic cylinder portion passes through the lower clamping plate 33 and enters the positioning groove, and tightly abuts against the positioning plate 23, thereby further clamping the positioning plate 23 and improving the stability of the positioning plate 23 in the positioning groove, and thus improving the fastening effect of the fixed fixture 3 on the comb tooth template 2.

[0046] As some preferred embodiments, the fixed rod portion includes a vertical threaded rod 341; the telescopic cylinder portion includes a cylinder body 342 passing through the lower clamping plate 33, a flat plate 343 provided on the outer periphery of the cylinder body 342 at the lower end of the lower clamping plate 33, a first fastening nut 344 screwed on the vertical threaded rod 341, located at the lower end of the lower clamping plate 33 and abutting against the lower side surface of the flat plate 343, and a spring 345 provided between the lower surface of the lower clamping plate 33 and the flat plate 343; the spring 345 makes the flat plate 343 tend to approach the lower clamping plate 33. Among them, the cylinder body 342 is sleeved outside the vertical threaded rod 341, and the first fastening nut 344 is used to limit the height position of the flat plate 343 on the vertical threaded rod 341; it is defined that the spring 345 is a tension spring, so as to pull the flat plate 343 close to the lower surface of the lower clamping plate 33, and the cylinder body 342 fixedly connected to the flat plate 343 further penetrates into the positioning groove from bottom to top under the action of the flat plate 343, so that the upper end of the cylinder body 342 tightly abuts against the positioning plate 23, strengthening the fastening effect on the positioning plate 23; at the same time, due to the deformation function of the spring 345, the setting of the spring 345 reduces the difficulty of the positioning plate 23 entering the positioning groove, which is helpful for convenient implementation during construction.

[0047] As some preferred embodiments, the fixed rod portion further includes an extension plate 346 provided at the lower end of the vertical threaded rod 341; the telescopic cylinder portion further includes an extension plate 347 provided at the upper end of the cylinder body 342. Among them, the extension plate 346 and the extension plate 347 are used to respectively increase the contact area between the vertical threaded rod 341 and the upper surface of the outer mold frame body 1, and the contact area between the cylinder body 342 and the lower surface of the positioning plate 23, so as to improve the overall fixing effect of the clamping member 34.

[0048] As some preferred embodiments, the fixing fixture 3 further includes a mounting plate 35 disposed on the fixing plate 31 and located at the lower end of the lower clamping plate 33, and an opening through which the vertical threaded rod 341 passes is provided on the mounting plate 35; a second fastening nut 364 is screwed on the vertical threaded rod 341 and abuts against the upper surface of the mounting plate 35. Among them, the mounting plate 35 is used to improve the stability of the lower end of the vertical threaded rod 341, ensure the verticality of the vertical threaded rod 341, prevent the overall fixing fixture 3 from being skewed, and ultimately ensure that the installation position of the comb tooth template 2 is accurately positioned and has good stability.

[0049] As some preferred embodiments, the fixing fixture 3 further includes a positioning member 36; the positioning member 36 at least includes a side vertical plate 361 that simultaneously acts on the side ends of two adjacent bottom plates 22. The side vertical plate 361 that abuts against the side ends of the bottom plates 22 of the two comb tooth templates 2 can correct the positions of the two comb tooth templates 2 in the positioning grooves, make their installation depths consistent, thereby ensuring accurate positioning when the two comb tooth templates 2 are spliced, ensuring the overall integrity and smoothness, and helping to improve the forming effect of the top template.

[0050] As some preferred embodiments, the positioning member 36 further includes a first horizontal plate 362 disposed at the upper end of the side vertical plate 361 and extending to the upper end of the mounting plate 35, and a side opening groove 363 provided on the first horizontal plate 362 for passing the vertical threaded rod 341; the second fastening nut 364 abuts against the upper surface of the first horizontal plate 362. Among them, the side opening groove 363 is a U-shaped groove, and the diameter of the groove opening is smaller than the outer diameter of the second fastening nut 364. The first horizontal plate 362 is fixed by pressing the second fastening nut 364, thereby ensuring that the side vertical plate 361 is firmly fixed after being adjusted to a proper position. Preferably, a gasket 365 sleeved on the vertical threaded rod 341 is further provided between the second fastening nut 364 and the upper surface of the first horizontal plate 362 to reduce the wear between the two.

[0051] As some preferred embodiments, the fixed fixture 3 further includes an auxiliary member 37; the auxiliary member 37 includes a second cross plate 371 for inserting into a positioning groove formed between the upper clamping plate 32 and the lower clamping plate 33, a bracket 372 provided at an outer end of the second cross plate 371 located outside the positioning groove for supporting the tied steel bar a, and an anti-slip layer 373 provided on the upper surface of the second cross plate 371. Among them, the second cross plate 371 can further enhance the fastening effect on the positioning plate 23 in the positioning groove and prevent the comb-shaped template 2 from shifting; at the same time, the positioning plate 23 reacts on the second cross plate 371, so that the second cross plate 371 is fixed. Therefore, the bracket 372 connected to the second cross plate 371 can serve as a support platform for carrying the tied steel bar a, thereby achieving the effect of assisting in fixing the tied steel bar a. The tied steel bar a is mainly tied and connected to the transverse horizontal reinforcement b of the top plate placed in the tooth-shaped gap on the comb-shaped template 2; the anti-slip layer 373 can be made of common materials such as rubber. The structures of the tied steel bar a and the transverse horizontal reinforcement b of the top plate and how to tie and connect them are all prior arts, so they will not be elaborated in this embodiment.

[0052] As some preferred embodiments, a partition 38 is provided in the middle of the positioning groove formed between the upper clamping plate 32 and the lower clamping plate 33. Among them, the partition 38 is centrally provided, mainly for positioning the depths at which the two comb-shaped templates 2 enter the positioning groove in the front-back direction, so that they are kept consistent, thereby ensuring that the fixed fixture 3 has a comparable fastening degree on the two comb-shaped templates 2.

[0053] The present invention also provides a method for building a precast beam and slab forming template, which specifically includes the following steps:

[0054] (1) Install two symmetric outer formwork frameworks;

[0055] (2) Design the installation spacing of the fixed fixtures according to the length of the outer formwork framework and the length of a single comb-shaped template, and install a plurality of fixed fixtures on the outer formwork framework according to the installation spacing;

[0056] (3) One fixed fixture corresponds to the splicing joint of two comb-shaped templates. After the side ends of the two comb-shaped templates are abutted, they are fixed by the fixed fixture;

[0057] (4) After all the comb-shaped templates are installed, lay the transverse horizontal reinforcement of the top plate on the comb-shaped templates, and tie and connect the ends of all the transverse horizontal reinforcements of the top plate located on the same outer formwork framework to the same tied steel bar;

[0058] (5) After the pouring is completed, first release the connection between the fixed fixture and the outer formwork framework, then remove the outer formwork framework, then release the connection between the fixed fixture and the comb-shaped template, and then remove the fixed fixture;

[0059] After the fixing jigs at both ends of a comb template are removed, the comb template can be removed and recycled.

[0060] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A precast beam and slab forming template structure is arranged at the upper end of an outer formwork frame (1), and is characterized in that: Comprising: A plurality of comb-shaped templates (2) installed along the length direction of the outer mold frame body (1); a single comb-shaped template (2) includes a comb-shaped plate (21), a bottom plate (22) provided at the lower end of the comb-shaped plate (21) and connected to the outer mold frame body (1), and a positioning plate (23) provided at the side end of the comb-shaped plate (21); A plurality of fixing clamps (3) distributed along the length direction of the outer mold frame body (1); a single fixing clamp (3) is located between two adjacent comb-shaped templates (2) and fixes the two comb-shaped templates (2) simultaneously; a single fixing clamp (3) includes a fixing plate (31) detachably connected to the outer mold frame body (1), an upper clamping plate (32) and a lower clamping plate (33) which are arranged in parallel at one end of the fixing plate (31) away from the outer mold frame body (1); a positioning groove for inserting the positioning plate (23) is formed between the upper clamping plate (32) and the lower clamping plate (33); The fixing clamp (3) further includes a clamping member (34); the clamping member (34) includes a fixed rod portion with one end abutted against the upper surface of the outer mold frame body (1), and a telescopic cylinder portion with one end passing through the lower clamping plate (33) and acting on the lower surface of the positioning plate (23); The fixed rod portion includes a vertical threaded rod (341); the telescopic cylinder portion includes a cylinder body (342) passing through the lower clamping plate (33), a flat plate (343) provided on the outer periphery of the cylinder body (342) at the lower end of the lower clamping plate (33), a first fastening nut (344) screwed on the vertical threaded rod (341) and located at the lower end of the lower clamping plate (33) and abutting against the flat plate (343), and a spring (345) provided between the lower surface of the lower clamping plate (33) and the flat plate (343); the spring (345) makes the flat plate (343) tend to approach the lower clamping plate (33); The fixing clamp (3) further includes a mounting plate (35) provided on the fixing plate (31) and located at the lower end of the lower clamping plate (33), and an opening for passing the vertical threaded rod (341) is provided on the mounting plate (35); a second fastening nut (364) screwed on the vertical threaded rod (341) abuts against the upper surface of the mounting plate (35); The fixing clamp (3) further includes a positioning member (36); the positioning member (36) at least includes a side vertical plate (361) that acts on the side ends of two adjacent bottom plates (22) simultaneously.

2. The precast beam and slab forming template structure according to claim 1, characterized in that: The fixed rod portion further includes an extension plate one (346) provided at the lower end of the vertical threaded rod (341); the telescopic cylinder portion further includes an extension plate two (347) provided at the upper end of the cylinder body (342).

3. A precast beam and slab forming template structure according to claim 1, characterized in that: The positioning member (36) further includes a cross plate one (362) provided at the upper end of the side vertical plate (361) and extending to the upper end of the mounting plate (35), and a side opening groove (363) provided on the cross plate one (362) for passing the vertical threaded rod (341); the second fastening nut (364) abuts against the upper surface of the cross plate one (362).

4. A precast beam and slab forming template structure according to claim 1, characterized in that: The fixed fixture (3) further includes an auxiliary member (37); the auxiliary member (37) includes a second cross plate (371) for inserting into a positioning groove formed between the upper clamping plate (32) and the lower clamping plate (33), and a bracket (372) provided on an outer end portion of the second cross plate (371) located outside the positioning groove for supporting the binding steel bars (a).

5. A precast beam and slab forming template structure according to claim 4, characterized in that: The auxiliary member (37) further includes an anti-slip layer (373) provided on an upper surface of the second cross plate (371).

6. The precast beam and slab forming template structure according to claim 1, wherein: A partition plate (38) is provided in a middle portion of the positioning groove formed between the upper clamping plate (32) and the lower clamping plate (33).

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