CN218748426U - Prefabricated form is changed into to cast-in-place T roof beam of bridge superstructure - Google Patents

Abstract

The utility model discloses a cast-in-situ T-beam prefabricated mold for bridge superstructure, relates to the field of T-beam prefabrication, and comprises a support base, a bottom mold and two side molds, the bottom mold is fixedly installed on the top of the support base, and the two side molds It is tightly attached to both sides of the bottom mold, and also includes a bottom box body and N sets of support units, the top of the bottom box body is fixedly connected with the bottom of the support seat, and the support unit includes a drive assembly and two sets of support frames Body, the utility model through the synchronous reverse rotation of the three double-segment threaded rods, and then make the T-shaped sliders on both sides away from each other, the movement of the T-shaped sliders drives the movement of the support frame and the side mold, and then makes the side mold and the side mold The solidified T-beam is separated, and the side form is moved to one side, so that the T-beam can be hoisted to the finished product area by a gantry crane for storage in the later stage, so that workers do not need to disassemble the support frame and side form, which not only reduces The workload of the workers is reduced, and the disassembly efficiency of the side form is also improved, which brings convenience to the work of the workers.

Description

Transformation of cast-in-place T-beams into prefabricated formwork for bridge superstructure

technical field

The utility model belongs to the field of T-beam prefabrication, and in particular relates to a cast-in-place T-beam reformation prefabrication form for a bridge superstructure.

Background technique

T-beam refers to a beam whose cross-sectional form is T-shaped. The protruding part on both sides is called the flange, and the middle part is called the beam rib (or web). Because it is equivalent to digging out the concrete in the tension zone of the rectangular beam that does not play a role in the flexural strength. Although the bending strength of the original rectangle is exactly the same, it can not only save concrete, but also reduce the weight of the component and improve the spanning ability.

The T-beam prefabrication formwork is usually composed of bottom formwork, end formwork and side formwork. In the T-beam prefabrication process, workers first need to cooperate with lifting equipment to assemble the bottom formwork, end formwork and side formwork, and then lift the bottom web reinforcement and pour Concrete, after the concrete of the beam body is solidified and the strength is qualified, the workers cooperate with the lifting equipment to remove the bottom formwork, end formwork and side formwork one by one.

Since the T-beam has a certain length, the number of side forms used is relatively large. To disassemble or install the side forms through the cooperation of the workers with the lifting equipment, the workers need to first dismantle or install the brackets, and then connect the side forms with the lifting equipment. The hanger is connected, and the side forms are lifted to one side one by one by lifting equipment. The disassembly process is not only time-consuming and laborious, but also has low disassembly efficiency and certain risks.

Therefore, we propose a bridge superstructure cast-in-situ T-beam prefabricated mold to solve the above problems.

Utility model content

During the disassembly and assembly process of the T-beam prefabricated formwork, since the T-beam has a certain length, the number of side forms used is large, and the side forms are disassembled or installed by workers with lifting equipment. The disassembly process is not only time-consuming and laborious , disassembly efficiency is low, and there is a certain degree of danger. The utility model provides a bridge superstructure cast-in-place T-beam conversion prefabricated formwork.

The solution adopted by the utility model to solve the technical problem is: a bridge superstructure cast-in-place T-beam modified prefabricated mold, including a support base, a bottom mold and two side molds, the bottom mold is fixedly installed on the top of the support base, two The side forms are respectively closely attached to both sides of the bottom form, and also include a bottom box body and N sets of support units, and the top of the bottom box body is fixedly connected to the bottom of the support seat.

The supporting unit includes a drive assembly and two sets of supporting frames. The supporting frame is set corresponding to the side formwork, which includes a bottom beam, an outer support beam and an inner contact beam. The outer support beam and the inner contact beam are respectively installed on the two sides of the bottom beam. end, the inner contact beam is connected with the vertical section of the side form, the top of the outer support beam and the inner contact beam is fixedly installed with the same V-shaped beam, and the V-shaped beam is connected with the inclined section of the side form.

The drive assembly is installed in the bottom box and drives the bottom beams on both sides away from or close to each other.

As a preferred technical solution of the utility model, a reinforcing beam is obliquely installed between the outer supporting beam and the V-shaped beam.

As a preferred technical solution of the present invention, both ends of the side form are fixedly connected with connecting sides, and a plurality of fixing holes are opened on the connecting sides.

As a preferred technical solution of the present utility model, the drive assembly includes a drive member, a double-segment threaded rod and two T-shaped sliders, both ends of the double-segment threaded rod are fitted with bearings, and the two bearings are respectively installed on the bottom On the two side walls of the box, the two sections of the double-section threaded rod have opposite thread directions, and the two sections of the double-section threaded rod are respectively threaded with two T-shaped sliders, and the top of the T-shaped slider passes through the top of the bottom box. The opened chute is fixedly connected with the bottom beam, and the driving part is installed on the bottom box body and can drive the double-segment threaded rod to rotate.

As a preferred technical solution of the utility model, the driving part is a positive and negative motor, and the positive and negative motor is fixedly installed on the outer surface of the bottom box, and its output shaft is fixedly connected with the outer end of the double-segment threaded rod.

As a preferred technical solution of the present invention, the driving part includes a chain, a positive and negative motor and three sprockets, and the three sprockets are respectively set on the optical axis sections of three double-segment threaded rods, and the three chains pass through the same Chain drive connection, positive and negative motors are installed on the outer side of the bottom box, and its output shaft is fixedly connected with the outer end of any double-segment threaded rod.

As a preferred technical solution of the present invention, a plurality of moving wheels are fixedly installed on the bottom of the bottom beam, and the moving wheels are in contact with the top of the low box body.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model uses the synchronous reverse rotation of three double-segment threaded rods, and then makes the T-shaped sliders on both sides away from each other. The movement of the T-shaped sliders drives the movement of the support frame and the side mold, and then makes the side mold and The solidified T-beam is separated, and the side form is moved to one side, so that the T-beam can be hoisted to the finished product area by a gantry crane for storage in the later stage, so that workers do not need to disassemble the support frame and side form, which not only reduces The workload of the workers is reduced, and the disassembly efficiency of the side form is also improved, which brings convenience to the work of the workers.

2. The utility model can support the side mold by setting the support frame to ensure the stability of the side mold during use. At the same time, when the T-shaped slider is moving, it can drive the side mold through the support frame. move.

3. The utility model sets the connection side at the end of the side form, through the cooperation of the connection side and the bolt, and then can connect a plurality of side forms together according to the prefabricated length of the T-beam, and change multiple T-beams. The prefabricated molds are assembled and combined to facilitate the prefabrication of T-beams of different lengths, and improve the practicability and applicability of the T-beam modified prefabricated molds.

4. The utility model is equipped with a moving wheel, which can assist the T-shaped slider to reduce the gravity on the double-segment threaded rod, protect the double-segment threaded rod, and avoid the contact between the T-shaped slider and the bottom. The top of the box is in direct contact to reduce friction and wear.

Description of drawings

Fig. 1 is the schematic diagram of the utility model front view three-dimensional structure;

Fig. 2 is the utility model side view three-dimensional structural schematic diagram;

Fig. 3 is a schematic diagram of the front view section structure of the utility model;

Fig. 4 is a side view structural diagram of the utility model in a connected state.

In the figure: 1 bottom box body, 21 support seat, 22 bottom mold, 3 side mold, 4 connecting side, 51 bottom beam, 52 outer support beam, 53 V-shaped beam, 54 reinforcement beam, 55 moving wheel, 56 inner contact Beam, 6 chutes, 71 positive and negative motors, 72 sprockets, 73 chains, 74 double-segment threaded rods, 75 T-shaped slide blocks.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Please refer to Figures 1-4, the utility model provides a technical solution for converting the cast-in-place T beam of the bridge superstructure into a prefabricated mold:

Embodiment one:

As shown in Figures 1-4, it includes a support base 21, a bottom mold 22, and two side molds 3. The bottom mold 22 is fixedly installed on the top of the support base 21, and the two side molds 3 are closely attached to both sides of the bottom mold 22. The two ends of the side formwork 3 are fixedly connected with the connecting side 4, and a plurality of fixing holes are provided on the connecting side 4. Through the cooperation of the connecting side 4 and the bolts, the length of the T-beam can be adjusted according to the prefabricated length of the T-beam. The side forms 3 are connected together to assemble and combine multiple T-beam modified prefabricated molds, so as to facilitate the prefabrication of T-shaped beams with different lengths, and improve the practicability and applicability of the T-beam modified prefabricated mold.

It also includes the bottom box body 1 and N groups of support units. The number of support units can be set according to the actual length of the side form 3, which can be two groups, three groups, four groups or even more groups. In this embodiment, the support units The number of units is three groups, and the three groups of support units are arranged sequentially from front to back, and the top of the bottom box body 1 is fixedly connected with the bottom of the support base 21 .

The support unit includes a drive assembly and two sets of support frames, and the support frame body is set corresponding to the side form 3, which includes a bottom beam 51, an outer support beam 52 and an inner contact beam 56, and the outer support beam 52 and the inner contact beam 56 are respectively Installed on the two ends of the bottom beam 51, the inner contact beam 56 is connected with the vertical section of the side form 3 by bolts, and the top of the outer support beam 52 and the inner contact beam 56 is fixedly installed with the same V-shaped beam 53, the V-shaped beam 53 The bolt is connected with the inclined section of the side form 3, and a reinforcement beam 54 is obliquely installed between the outer support beam 52 and the V-shaped beam 53. By setting the support frame body, the side form 3 can be supported to ensure that the side form 3 is in the Stability during use, and at the same time, when the T-shaped slider 75 is moving, it can drive the movement of the side mold 3 through the support frame body.

The drive assembly includes a driver, a double-section threaded rod 74 and two T-shaped slide blocks 75, and the two ends of the double-section threaded rod 74 are equipped with bearings, and the two bearings are installed on the two side walls of the bottom box body 1 respectively. The directions of the two sections of threaded rods 74 are opposite, and the two sections of threads of the double-sectioned threaded rods 74 are threadedly connected with two T-shaped sliders 75 respectively, and the top of the T-shaped sliders 75 passes through the chute provided at the top of the bottom box body 1 6 and fixedly connected with the bottom beam 51, the driving part is the forward and reverse motor 71, and the positive and negative motor 71 is fixedly installed on the outer surface of the bottom box body 1, and its output shaft is fixedly connected with the outer end of the double-section threaded rod 74, through the positive and negative The motor 71 drives the reverse rotation of the double-section threaded rod 74 to make the synchronous reverse rotation of three double-section threaded rods 74, and then the T-shaped slide blocks 75 on both sides are kept away from each other, and the movement of the T-shaped slide block 75 drives the support frame body and The movement of the side form 3 further separates the side form 3 from the solidified T-beam, and moves the side form 3 to one side so that the T-beam can be hoisted to the finished product area by a gantry crane for storage in the later stage, so that workers do not need to The support frame body and side form 3 are disassembled, which not only reduces the workload of the workers, but also improves the disassembly efficiency of the side form 3, which brings convenience to the work of the workers.

During specific use, a bridge superstructure cast-in-place T-beam of the utility model is converted into a prefabricated form. First, according to the length of the prefabricated T-beam, the number of T-beams to be changed into a prefabricated form is selected, and a plurality of T-beams are changed into prefabricated forms before and after correspondingly. Fill the space between two adjacent bottom molds 22 and two adjacent side molds 3, and pass the bolts through the fixing holes to connect and fix the two adjacent connecting sides 4 together. Carry out assembly and combination, and then install the end mold, and the side mold 3 and the end mold must be cleaned and coated with a release agent before installation;

Then hang the bottom web reinforcement, pour concrete, and wait for the beam body concrete to solidify;

After the T-beam is solidified, remove the end molds at both ends, and remove the bolts connecting the two adjacent connecting sides 4, then start the positive and negative motors 71 in the same module, and drive the double-segment threaded rods through the positive and negative motors 71 The reverse rotation of 74 makes the synchronous reverse rotation of three double-section threaded rods 74, and then the T-shaped sliders 75 on both sides are separated from each other, and the movement of the T-shaped sliders 75 drives the movement of the support frame body and the side mold 3, and then The side form 3 is separated from the solidified T-beam, and the side form 3 is moved to one side, so that the T-beam can be hoisted to the finished product area by a gantry crane for storage in the later stage.

Embodiment two:

On the basis of Embodiment 1, as shown in Figure 3, the driving member includes a chain 73, a positive and negative motor 71 and three sprockets 72, and the three sprockets 72 are respectively set on the optical axis sections of three double-segment threaded rods 74 , the three chains 73 are connected through the transmission of the same chain 73, the positive and negative motor 71 is installed on the outer surface of the bottom box body 1, and its output shaft is fixedly connected with the outer end of any double-segment threaded rod 74, by setting the chain 73 and Three sprocket wheels 72, then when positive and negative motor 71 work, through the cooperation of chain 73 and three sprocket wheels 72, three double-section threaded rods 74 are synchronously rotated, reduce the use of positive and negative motor 71, save the use of this device cost.

Embodiment three:

On the basis of Embodiment 1, as shown in Figure 1 and Figure 2, the bottom of the bottom beam 51 is fixedly equipped with a plurality of moving wheels 55, and the moving wheels 55 are in contact with the top of the low box body 1, by setting the moving wheels 55, The moving wheel 55 can provide auxiliary support to the T-shaped slider 75, reduce the gravity on the double-section threaded rod 74, protect the double-section threaded rod 74, and prevent the T-shaped slider 75 from contacting the top of the bottom box 1. Direct contact reduces friction and wear.

Claims (7)

1. The utility model provides a cast-in-place T roof beam of bridge superstructure changes prefabricated mould, includes supporting seat, die block and two side forms, and die block fixed mounting is at the top of supporting seat, and two side forms closely laminate its characterized in that with the both sides of die block respectively: the supporting device also comprises a bottom box body and N groups of supporting units, wherein the top of the bottom box body is fixedly connected with the bottom of the supporting seat;

the supporting unit comprises a driving assembly and two groups of supporting frame bodies, the supporting frame bodies are arranged corresponding to the side molds and comprise bottom beams, outer supporting beams and inner contact beams, the outer supporting beams and the inner contact beams are respectively arranged at two ends of the bottom beams, the inner contact beams are connected with vertical sections of the side molds, the top ends of the outer supporting beams and the inner contact beams are fixedly provided with the same V-shaped beam, and the V-shaped beams are connected with inclined sections of the side molds;

the driving assembly is arranged in the bottom box body and is far away from or close to each other through bottom beams on two sides of the driving assembly.

2. The prefabricated form is reformed to cast-in-place T roof beam of bridge superstructure according to claim 1, characterized in that: and a reinforcing beam is obliquely arranged between the outer supporting beam and the V-shaped beam.

3. The precast form modified by a cast-in-place T beam of a bridge superstructure according to claim 1 or 2, characterized in that: the both ends of side form are equal fixedly connected with and connect the side, have seted up a plurality of fixed orificess on the connection side.

4. The precast form modified by a cast-in-place T beam of a bridge superstructure according to claim 1 or 2, characterized in that: the driving assembly comprises a driving piece, a double-section threaded rod and two T-shaped sliding blocks, bearings are sleeved at two ends of the double-section threaded rod, the two bearings are installed on two side walls of the bottom box body respectively, two sections of threads of the double-section threaded rod are opposite in direction, two sections of threads of the double-section threaded rod are in threaded connection with the two T-shaped sliding blocks respectively, the top end of each T-shaped sliding block penetrates through a sliding groove formed in the top of the bottom box body and is fixedly connected with the bottom beam, and the driving piece is installed on the bottom box body and can drive the double-section threaded rod to rotate.

5. The precast form modified by a cast-in-place T beam of a bridge superstructure according to claim 4, characterized in that: the driving piece is a positive and negative motor which is fixedly arranged on the outer side surface of the bottom box body, and an output shaft of the positive and negative motor is fixedly connected with the outer end of the double-section threaded rod.

6. The precast form modified by a cast-in-place T beam of a bridge superstructure according to claim 4, characterized in that: the driving piece comprises a chain, a positive and negative motor and three chain wheels, the three chain wheels are respectively sleeved on the optical axis sections of the three double-section threaded rods, the three chains are connected through the same chain in a transmission manner, the positive and negative motor is arranged on the outer side surface of the bottom box body, and the output shaft of the positive and negative motor is fixedly connected with the outer end of any double-section threaded rod.

7. The precast form modified by a cast-in-place T beam of a bridge superstructure according to claim 4, characterized in that: the bottom of floorbar is fixedly provided with a plurality of movable wheels, and the movable wheels are in contact with the top of the low box body.

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