Fabricated inverted triangle pre-pressing construction device

Abstract

An assembly type reverse triangle pre-pressing construction device comprises a supporting frame, the supporting frame comprises connecting bases, a cross beam and an oblique beam, the cross beam is connected with one end of the oblique beam, the inner end of the cross beam is connected with one connecting base, and the other end of the oblique beam is connected with the other connecting base; the oblique beam is positioned above the cross beam; the number of the supporting frames is two or more, and the two supporting frames are arranged in parallel.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction equipment technology, and in particular to a prefabricated inverted triangular preloading construction device. Background Technology

[0002] In bridge construction, especially the construction of long-span cantilever beam bridges, the hanging formwork construction method is widely used due to its efficiency and flexibility. As the core equipment of the cantilever casting method, the stability and load-bearing capacity of the hanging formwork are crucial to construction quality and safety. To ensure the safety and reliability of the hanging formwork structure, it is necessary to pre-stress it before construction to eliminate inelastic deformation, measure the amount of elastic deformation, and verify the stability of the hanging formwork.

[0003] Existing technologies for preloading hanging baskets include: surcharge preloading, water tank preloading, sandbag surcharge, jack preloading, and reaction frame preloading. Among these, surcharge preloading, water tank preloading, sandbag surcharge, and jack preloading are time-consuming, inefficient, occupy tower crane resources, and pose high safety risks. Reaction frame preloading requires high-altitude welding operations, which are time-consuming to disassemble and inconvenient to install. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a prefabricated inverted triangular preloading construction device that eliminates the need for high-altitude welding and improves the safety factor, thus overcoming the shortcomings of the existing technology.

[0005] The technical solution adopted in this utility model is the prefabricated inverted triangular preloading construction device, which includes a support frame. The support frame includes a connecting seat, a crossbeam, and an inclined beam. One end of the crossbeam and the inclined beam are connected. The inner end of the crossbeam is connected to a connecting seat, and the other end of the inclined beam is connected to another connecting seat. The inclined beam is located above the crossbeam. There are two or more support frames, and the two support frames are arranged in parallel.

[0006] The present invention provides a pressure beam below the crossbeam, and a driving device is provided between the pressure beam and the crossbeam.

[0007] The driving device of this utility model is a hydraulic cylinder, a pneumatic cylinder, or a linear motor.

[0008] The connecting seat of this utility model includes a base plate and an ear plate fixedly connected to the base plate. The base plate and the ear plate are perpendicular to each other. The base plate and the ear plate are fixedly connected by a reinforcing plate. The ear plate is provided with a first mounting hole.

[0009] The present invention connects one end of the crossbeam and the inclined beam using a connecting seat; the connecting seat includes a base plate and an ear plate fixedly connected to the base plate, the base plate and the ear plate are perpendicular to each other, the base plate and the ear plate are fixedly connected by a reinforcing plate, the ear plate is provided with a first mounting hole, and the base plate is provided with a second mounting hole; the crossbeam includes an I-beam, the upper flange of the I-beam is provided with a third mounting hole corresponding to the second mounting hole, the base plate is placed on the upper side of the I-beam, and the second mounting hole and the third mounting hole are connected by fasteners after being aligned.

[0010] The inclined beam of this utility model includes a metal pipe and two spaced-apart mounting plates. The mounting plates are provided with slots, the metal pipe is placed in the slots and fixedly connected to the mounting plates, and the mounting plates are provided with a fourth mounting hole.

[0011] The present invention connects the crossbeam and the inclined beam at one end using a connecting seat. The connecting seat includes a base plate and an ear plate fixedly connected to the base plate. The base plate and the ear plate are perpendicular to each other and are fixedly connected by a reinforcing plate. The ear plate has a first mounting hole, and the base plate has a second mounting hole. The crossbeam includes an I-beam. The upper flange of the I-beam has a third mounting hole corresponding to the second mounting hole. The base plate is placed on top of the I-beam. The second and third mounting holes are aligned and connected by fasteners. The inclined beam includes a metal tube and two spaced mounting plates. The mounting plates have slots. The metal tube is placed in the slots and fixedly connected to the mounting plates. The mounting plates have a fourth mounting hole. The ear plate connecting the crossbeam and the inclined beam is located between the two mounting plates, and a pin passes through the first and fourth mounting holes.

[0012] The upper and lower flanges of the I-beam of this utility model are fixedly connected by a support plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] Compared with existing technologies such as surcharge preloading, water tank preloading, sandbag surcharge, and jack preloading, which require tower crane resources and have high safety risks, and reaction frame preloading, which requires high-altitude welding, this utility model connects one end of a horizontal beam and an inclined beam, with the inner end of the horizontal beam connected to a connecting seat and the other end of the inclined beam connected to another connecting seat. Both the horizontal beam and the inclined beam are fixedly connected to the bridge box girder. The inclined beam is located above the horizontal beam. There are two or more support frames, which are arranged in parallel. This utility model is a stable triangular structure with a high safety factor and does not require high-altitude welding, making the operation convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the connector described in this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the crossbeam described in this utility model.

[0018] Figure 4 This is a schematic diagram of the inclined beam described in this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 4 As shown, the prefabricated inverted triangular preloading construction device described in this embodiment includes a support frame 1. The support frame 1 includes a connecting seat 2, a crossbeam 3, and an inclined beam 4. One end of the crossbeam 3 is connected to one end of the inclined beam 4. The inner end of the crossbeam 3 is connected to a connecting seat 2, where the inner end refers to the end relatively close to a fixed object, typically a building pier. The other end of the inclined beam 4 is connected to another connecting seat 2. The inclined beam 4 is positioned above the crossbeam 3. There are two or more support frames 1, arranged in parallel. The crossbeam 3... Below the beam, a pressure beam 5 is provided, and a driving device 6 is provided between the pressure beam 5 and the crossbeam 3. The driving device 6 is a hydraulic cylinder, a pneumatic cylinder, or a linear motor. In this embodiment, the crossbeam 3 and the inclined beam 4 are fixedly connected to the building pier body through the connecting seat 2. One end of the crossbeam 3 and the inclined beam 4 are connected to form a stable triangular support frame 1. Finally, the driving device 6 drives the pressure beam 5 to pre-press the hanging basket in the direction of the hanging basket, thereby realizing the pre-pressing of the hanging basket. The setting of two or more support frames 1 improves the balance of force on the pressure beam 5.

[0021] As a preferred embodiment, the specific structure of the connecting seat 2 in this embodiment is as follows: The connecting seat 2 includes a base plate 21 and an ear plate 22 fixedly connected to the base plate 21. The base plate 21 and the ear plate 22 are perpendicular to each other. The base plate 21 and the ear plate 22 are fixedly connected by a reinforcing plate 23. The ear plate 22 is provided with a first mounting hole 24 and the base plate 21 is provided with a second mounting hole 25.

[0022] As a preferred embodiment, the specific structure of the crossbeam 3 in this embodiment is as follows: the crossbeam 3 includes an I-beam 31, the upper flange 311 of the I-beam 31 is provided with a third mounting hole 32 corresponding to the second mounting hole 25, and the base plate 21 is placed on the upper side of the I-beam 31; a support plate 313 is fixedly connected between the upper flange 311 and the lower flange 312 of the I-beam 31.

[0023] As a preferred embodiment, the specific structure of the inclined beam 4 in this embodiment is as follows: the inclined beam 4 includes a metal pipe 41 and two spaced mounting plates 42. The mounting plates 42 are provided with slots, the metal pipe 41 is provided in the slots and fixedly connected to the mounting plates 42, and the mounting plates 42 are provided with a fourth mounting hole 43.

[0024] In a preferred embodiment, one end of the crossbeam 3 and the inclined beam 4 are connected by a connecting seat 2. The connecting seat 2 includes a base plate 21 and an ear plate 22 fixedly connected to the base plate 21. The base plate 21 and the ear plate 22 are perpendicular to each other. The base plate 21 and the ear plate 22 are fixedly connected by a reinforcing plate 23. The ear plate 22 is provided with a first mounting hole 24, and the base plate 21 is provided with a second mounting hole 25. The crossbeam 3 includes an I-beam 31. The upper flange 311 of the I-beam 31 is provided with a third mounting hole 32 corresponding to the second mounting hole 25. The base plate 21 is placed on the upper side of the I-beam 31. After the second mounting hole 25 and the third mounting hole 32 are aligned, they are connected by fasteners to fix the crossbeam 3 and the connecting seat 2. The inclined beam 4 is welded to the connecting seat 2 as a whole, and finally the crossbeam 3 and the inclined beam 4 are connected at one end.

[0025] Another embodiment of one end of the crossbeam 3 and the inclined beam 4 is as follows: one end of the crossbeam 3 and the inclined beam 4 are connected by a connecting seat 2; the second mounting hole 25 and the third mounting hole 32 are aligned and connected by fasteners; the ear plate 22 of the connecting seat 2 connecting the crossbeam 3 and the inclined beam 4 is located between the two mounting plates 42, and the pin 7 passes through the first mounting hole 24 and the fourth mounting hole 43; in this embodiment, the crossbeam 3 and the connecting seat 2 are connected by fasteners after the second mounting hole 25 and the third mounting hole 32 are aligned; the connecting seat 2 and the inclined beam 4 are connected by the pin 7 passing through the first mounting hole 24 and the fourth mounting hole 43, thereby fixing the crossbeam 3 and the inclined beam 4 together; in this embodiment, the crossbeam 3 and the inclined beam 4 are detachably connected by the connecting seat 2, and the crossbeam 3 and the inclined beam 4 can be reused, saving resources.

[0026] The specific usage method of the prefabricated inverted triangular preloading construction device described in this embodiment is as follows:

[0027] 1. First, fix the two connecting seats 2 to the building pier body; that is, embed two pre-embedded parts with holes in the building pier body, and insert the climbing cone through the holes of the pre-embedded parts and the second installation hole 25 of the connecting seat 2 to fix the connecting seat 2 to the building pier body.

[0028] 2. Then, fix one end of the crossbeam 3 to the connecting seat 2 located below; that is, the fastener passes through the mounting position at the end of the crossbeam 3 and the first mounting hole 24 of the connecting seat 2 to fix one end of the crossbeam 3 to the connecting seat 2 located below.

[0029] 3. Then, one end of the inclined beam 4 is fixedly connected to the upper connecting seat 2; that is, the pin 7 passes through the first mounting hole 24 of the connecting seat 2 and the fourth mounting hole 43 of the inclined beam 4, thereby fixing one end of the inclined beam 4 to the lower connecting seat 2.

[0030] 4. Finally, fix one end of the crossbeam 3 to the inclined beam 4. That is, after aligning the second mounting hole 25 of the connecting seat 2 and the third mounting hole 32 of the crossbeam 3, fasteners are used to connect the crossbeam 3 to the connecting seat 2. The pin 7 passes through the first mounting hole 24 of the connecting seat 2 and the fourth mounting hole 43 of the inclined beam 4 to connect the connecting seat 2 to the inclined beam 4. Thus, one end of the crossbeam 3 and the inclined beam 4 are fixedly connected.

Claims

1. A prefabricated inverted triangular preloading construction device, comprising a support frame (1), characterized in that, The support frame (1) comprises a connecting seat (2), a crossbeam (3) and a diagonal beam (4), the crossbeam (3) is connected with one end of the diagonal beam (4), the inner end of the crossbeam (3) is connected with one connecting seat (2), the other end of the diagonal beam (4) is connected with another connecting seat (2); the diagonal beam (4) is above the crossbeam (3); the support frame (1) is two or more, and two support frames (1) are arranged in parallel.

2. The assembled inverse triangular preloading construction device according to claim 1, characterized in that, A pressing beam (5) is arranged below the crossbeam (3), and a driving device (6) is arranged between the pressing beam (5) and the crossbeam (3).

3. The assembled inverse triangular preloading construction device according to claim 2, characterized in that, The driving device (6) is an oil cylinder, an air cylinder or a linear motor.

4. The assembled inverse triangular preloading construction device according to claim 1, characterized in that, The connecting seat (2) comprises a base plate (21) and an ear plate (22) fixedly connected with the base plate (21), the base plate (21) is perpendicular to the ear plate (22), the base plate (21) and the ear plate (22) are fixedly connected by a reinforcing plate (23), and the ear plate (22) is provided with a first mounting hole (24).

5. The assembled inverse triangular preloading construction device according to claim 1, characterized in that, The crossbeam (3) and one end of the diagonal beam (4) are connected by the connecting seat (2); the connecting seat (2) comprises a base plate (21) and an ear plate (22) fixedly connected with the base plate (21), the base plate (21) is perpendicular to the ear plate (22), the base plate (21) and the ear plate (22) are fixedly connected by a reinforcing plate (23), the ear plate (22) is provided with a first mounting hole (24), and the base plate (21) is provided with a second mounting hole (25); the crossbeam (3) comprises an I-beam (31), the upper flange (311) of the I-beam (31) is provided with a third mounting hole (32) corresponding to the second mounting hole (25), the base plate (21) is arranged on the upper surface of the I-beam (31), and the second mounting hole (25) and the third mounting hole (32) are connected by a fastener in alignment.

6. The assembled inverse triangular preloading construction device according to claim 1, characterized in that, The diagonal beam (4) comprises a metal pipe (41) and two spaced installation plates (42), the installation plate (42) is provided with a slot, the metal pipe (41) is arranged in the slot and fixedly connected with the installation plate (42), and the installation plate (42) is provided with a fourth mounting hole (43).

7. The assembled inverse triangular preloading construction device according to claim 1, characterized in that, The horizontal beam (3) is connected with one end of the inclined beam (4) by the connecting seat (2); the connecting seat (2) comprises a base plate (21), an ear plate (22) fixedly connected with the base plate (21), the base plate (21) is perpendicular to the ear plate (22), the base plate (21) and the ear plate (22) are fixedly connected by a reinforcing plate (23), the ear plate (22) is provided with a first mounting hole (24), and the base plate (21) is provided with a second mounting hole (25); the horizontal beam (3) comprises an I-beam (31), the upper flange (311) of the I-beam (31) is provided with a third mounting hole (32) corresponding to the second mounting hole (25), the base plate (21) is arranged on the upper surface of the I-beam (31), the second mounting hole (25) and the third mounting hole (32) are connected by a fastener after being aligned; the inclined beam (4) comprises a metal pipe (41) and two spaced installation plates (42), the installation plate (42) is provided with a slot, the metal pipe (41) is arranged in the slot and fixedly connected with the installation plate (42), and the installation plate (42) is provided with a fourth mounting hole (43); the ear plate (22) of the connecting seat (2) connecting the horizontal beam (3) and the inclined beam (4) is located between the two installation plates (42), and a pin shaft (7) is arranged in the first mounting hole (24) and the fourth mounting hole (43).

8. The assembled inverse triangular preloading construction device according to claim 5, characterized in that, The upper flange (311) and the lower flange (312) of the I-beam (31) are fixedly connected with a support plate (313).

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