Bracket for bridge closure section construction and closure section construction process

Abstract

The invention relates to the technical field of bridge closure sections, and particularly discloses a support for bridge closure section construction and a closure section construction technology.The support comprises a bridge, a sliding rail is arranged at the top of the bridge, the top of the sliding rail is connected with a support, a connecting beam is arranged at the top of the sliding rail, the two ends of the connecting beam are connected with side plates, and the bottoms of the side plates are connected with a bottom plate; a connecting block is arranged at the top of the side plate, a sleeving cylinder is connected to one side of the connecting block, a mounting rod is connected to the middle of the sleeving cylinder, a limiting hook is arranged at one end of the mounting rod, the sleeving cylinder is rotationally connected to one side of the connecting block, and a rotating ring groove is formed in the side wall of the mounting rod. The mounting rod can be flexibly lifted through the sleeving cylinder arranged in the device, so that the limiting hook at one end can be lifted to any height to stably support the main reinforcements with different heights, the main reinforcements of the reinforcement cage can be conveniently built, and manual control and fixation are not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge closure segments, and more specifically, to a support for bridge closure segment construction and a construction process for the closure segment. Background Art

[0002] The bridge closure segment refers to the position where the bridge is built from both ends towards the center and finally closed at both ends. When pouring the mid-span closure segment of the bridge, it is necessary to seal both sides from the side plates on the support to the closure segment, and then cooperate with the bottom slab of the bridge to form a groove, and then pour to integrally connect the bridge.

[0003] However, when the side plates on the existing construction support cooperate with the bottom to form a groove for in-situ casting, since it is necessary to build a steel reinforcement cage in the groove for in-situ casting, at the initial stage of building the steel reinforcement cage, because there are no other steel bars and support structures to fix the position of the main steel bars, it is necessary to manually control and support temporarily. However, due to the limited space in the groove, when manually controlling and supporting, it is very inconvenient, and it is difficult to flexibly control the stability of the main steel bars while connecting and fixing the main steel bars, resulting in affecting the construction efficiency and accuracy. Summary of the Invention

[0004] The purpose of the present invention is to provide a support for bridge closure segment construction and a construction process for the closure segment, which solves the problem that when pouring the closure segment due to the cooperation between the side plates and the bottom of the support to form a groove, it is necessary to build a steel reinforcement cage in the narrow groove, and at the initial stage, it is necessary to manually control the main steel bars, resulting in great inconvenience in construction due to space limitations.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides a support for bridge closure segment construction, including a bridge, a slide rail is arranged on the top of the bridge, a support is connected to the top of the slide rail, a connecting beam is arranged on the top of the slide rail, side plates are connected to both ends of the connecting beam, a bottom plate is connected to the bottom of the side plates, a connecting block is arranged on the top of the side plates, a socket cylinder is connected to one side of the connecting block, an installation rod is connected to the middle of the socket cylinder, a limiting hook is arranged at one end of the installation rod, the socket cylinder is rotatably connected to one side of the connecting block, and a rotating ring groove is arranged on the side wall of the installation rod.

[0007] Preferably, there is a certain gap between the bottom of the socket cylinder and the top of the side plate.

[0008] Preferably, the socket cylinder includes a lifting ring and a transmission gear, the lifting ring is rotatably connected to the bottom of the socket cylinder, and the transmission gear is arranged on one side of the socket cylinder.

[0009] Preferably, the inner wall of the lifting ring is thread-matched with the side wall of the installation rod.

[0010] Preferably, the transmission gear is a helical gear, and the socket cylinder is movably connected to one side of the connection block through the transmission gear connected to one side.

[0011] Preferably, the connection block includes a rotating gear, a lifting groove, a limiting rod and a abutting rod. The rotating gear is connected to the inner wall of the connection block, the lifting groove is arranged inside the connection block, the limiting rod is connected to the middle of the lifting groove, and the abutting rod is connected to one side of the top of the limiting rod.

[0012] Preferably, the rotating gear meshes with the transmission gear, and the lifting groove is a groove penetrating through the middle of the rotating gear.

[0013] Preferably, the limiting rod is a rod body with an outer wall thread-matching the inner wall of the lifting groove, and sliding grooves are arranged on both sides of the limiting rod. Sliding blocks cooperating with the sliding grooves are arranged on both sides of the inner wall of the through hole in the middle of the rotating gear.

[0014] Preferably, the rotating ring groove is a circular groove on the side wall near the top end of the mounting rod.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0016] 1. The socket cylinder provided in the device enables the mounting rod to be lifted flexibly, so that the limiting hook at one end can be lifted to any height to stably support the main reinforcement bars at different heights, facilitating the construction of the main reinforcement bars of the steel reinforcement cage without manual control and fixation.

[0017] 2. The device is also provided with a transmission gear. Through the transmission gear, the socket cylinder can be deflected, thereby controlling the mounting rod to change its angle. Then, by cooperating with the lifting, the limiting hook at one end of the mounting rod can be moved to any position on the side plate, so as to flexibly provide temporary stable support for the main reinforcement bars of the steel reinforcement cage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 is a schematic top view structure diagram of the present invention.

[0020] Figure 3 is of the present invention Figure 2 The enlarged schematic structure diagram at A.

[0021] Figure 4 is a schematic diagram of the overall structure of the side plate and the mounting rod of the present invention.

[0022] Figure 5 is a schematic diagram of the state of the side plate and the mounting rod of the present invention.

[0023] Figure 6 is a schematic side sectional view structure diagram of the mounting rod of the present invention.

[0024] Figure 7 For the present invention Figure 6 is a schematic enlarged structure diagram at position B in the present invention.

[0025] Reference numerals: 1 - bridge, 2 - slide rail, 201 - support, 202 - connecting beam, 3 - side plate, 4 - bottom plate, 5 - mounting rod, 501 - socket cylinder, 5011 - lifting ring, 5012 - transmission gear, 502 - connecting block, 5021 - rotating gear, 5022 - lifting groove, 5023 - limiting rod, 5024 - abutting rod, 503 - limiting hook, 504 - rotating ring groove. Detailed implementation manners

[0026] The following is combined with Figures 1 to 7 to make a detailed description of the present invention.

[0027] A support for the closure section construction of a bridge, comprising a bridge 1. A slide rail 2 is arranged on the top of the bridge 1. A support 201 is connected to the top of the slide rail 2. A connecting beam 202 is arranged on the top of the slide rail 2. Side plates 3 are connected to both ends of the connecting beam 202. A bottom plate 4 is connected to the bottom of the side plates 3. A connecting block 502 is arranged on the top of the side plates 3. A socket cylinder 501 is connected to one side of the connecting block 502. A mounting rod 5 is connected to the middle of the socket cylinder 501. A limiting hook 503 is arranged at one end of the mounting rod 5. The socket cylinder 501 is rotatably connected to one side of the connecting block 502. A rotating ring groove 504 is arranged on the side wall of the mounting rod 5.

[0028] First, the slide rail 2 is erected at the closure section of the bridge 1, and then the connecting beam 202 is stably erected through the support 201 connected to the slide rail 2. Then, the two sides of the closure section are closed by the side plates 3 connected to both ends of the connecting beam 202. The side plates 3 are connected and erected through multiple links such as the binding of steel bars, the installation of prestressed pipes, and the erection of formworks. Then, the bottom plate is directly welded or bolt - connected below the closure section at the bottom of the bridge 1, so that a groove is formed on one side of the closure section. Then, the steel cage is erected in the closure section, and cement is poured to integrally and stably connect the two sides of the closure section and close - connect the middle - span part of the bridge.

[0029] Furthermore, there is a certain gap between the bottom of the socket cylinder 501 and the top of the side plate 3. The socket cylinder 501 includes a lifting ring 5011 and a transmission gear 5012. The lifting ring 5011 is rotatably connected to the bottom of the socket cylinder 501. The transmission gear 5012 is arranged on one side of the socket cylinder 501. The inner wall of the lifting ring 5011 is thread - matched with the side wall of the mounting rod 5.

[0030] When constructing the main reinforcement bars of the steel cage, the lifting ring 5011 at the bottom of the socket cylinder 501 is rotated to control the lifting of the installation rod 5, moving the limit hook 503 to any height. Then, since the lifting is controlled by the thread of the lifting ring 5011, the lifting of the installation rod 5 will not move by itself.

[0031] Furthermore, the transmission gear 5012 is a helical gear, and the socket cylinder 501 is movably connected to one side of the connection block 502 through the transmission gear 5012 connected to one side. The connection block 502 includes a rotating gear 5021, a lifting groove 5022, a limiting rod 5023, and a abutting rod 5024. The rotating gear 5021 is connected to the inner wall of the connection block 502. The lifting groove 5022 is arranged inside the connection block 502. The limiting rod 5023 is connected to the middle of the lifting groove 5022. The abutting rod 5024 is connected to one side of the top of the limiting rod 5023. The rotating gear 5021 meshes with the transmission gear 5012. The lifting groove 5022 is a groove penetrating through the middle of the rotating gear 5021. The limiting rod 5023 is a rod body with an outer wall thread-matching the inner wall of the lifting groove 5022, and both sides of the limiting rod 5023 are provided with sliding grooves. Both sides of the inner wall of the through-hole in the middle of the rotating gear 5021 are provided with sliders cooperating with the sliding grooves. The rotating ring groove 504 is a circular groove on the side wall near the top of the installation rod 5.

[0032] After the height adjustment is completed, by applying force to the installation rod 5, the socket cylinder 501 will rotate in the connection block 502 through the transmission gear 5012 on one side to adjust the angle of the installation rod 5. When the transmission gear 5012 rotates, it will drive the rotating gear 5021 to rotate. When the rotating gear 5021 rotates, since there are protrusions on its inner wall that cooperate with the grooves on both sides of the limiting rod 5023, the limiting rod 5023 will also be driven to rotate. At the same time, because the limiting rod 5023 is thread-matched with the lifting groove 5022, the limiting rod 5023 will lift along the lifting groove 5022 when rotating, and will not drive the rotating gear 5021, so that the angle change of the installation rod 5 can only deflect on the premise that the limiting rod 5023 rotates and lifts. After the angle of the installation rod 5 is adjusted to the appropriate position, the abutting rod 5024 is thread-connected to one side of the top disc of the limiting rod 5023, and the abutting rod 5024 abuts against the top of the connection block 502 to prevent the limiting rod 5023 from continuing to rotate, thereby fixing the angle of the installation rod 5 as well. In this way, the installation rod 5 can be adjusted at a more comprehensive angle without being restricted, enabling the limit hook 503 to move to various positions of the side plate 3, so that the steel bars can slide to the designated positions for the connection and fixation of the main reinforcement bars, without the need for manual control of stability, which is not convenient for construction and erection due to space limitations in the closure section.

[0033] Meanwhile, a rotating ring groove 504 is also provided on the mounting rod 5. By moving the rotating ring groove 504 to the position of the lifting ring 5011, the thread matching is lost, enabling the mounting rod 5 to rotate and turning the limit hook 503 towards the other side, thereby providing stable support for the other side.

[0034] The following is the specific implementation process of the present invention. First, the slide rail 2 is erected at the closure section of the bridge 1. Then, the connecting beam 202 is stably erected through the bracket 201 connected to the slide rail 2. Next, the side plates 3 connected to both ends of the connecting beam 202 are used to enclose both sides of the closure section. The side plates 3 are connected and erected through multiple links such as steel bar binding, prestressed duct installation, and formwork erection. Then, the bottom plate is directly welded or bolted to the bottom of the bridge 1 below the closure section, thereby forming a groove on one side of the closure section. Then, the steel cage is erected in the closure section, and cement is poured to integrally and stably connect both sides of the closure section and close the middle span part of the bridge. When erecting the main bars of the steel cage, the lifting ring 5011 at the bottom of the socket cylinder 501 is rotated to control the lifting of the mounting rod 5, moving the limit hook 503 to any height. Since the lifting of the mounting rod 5 is controlled by the thread of the lifting ring 5011, the mounting rod 5 will not move freely during lifting. After the height adjustment is completed, a force is applied to the mounting rod 5, causing the socket cylinder 501 to rotate in the connecting block 502 through the transmission gear 5012 on one side to adjust the angle of the mounting rod 5. When the transmission gear 5012 rotates, it drives the rotating gear 5021 to rotate. When the rotating gear 5021 rotates, convex blocks provided on its inner wall cooperate with the grooves on both sides of the limiting rod 5023, causing the limiting rod 5023 to also rotate. At the same time, due to the thread matching between the limiting rod 5023 and the lifting groove 5022, the limiting rod 5023 will move up and down along the lifting groove 5022 during rotation without driving the rotating gear 5021, enabling the angle change of the mounting rod 5 to deflect only on the premise that the limiting rod 5023 rotates and moves up and down. After the angle of the mounting rod 5 is adjusted to the appropriate position, a abutting rod 5024 is threadedly connected to one side of the top disc of the limiting rod 5023, and the abutting rod 5024 abuts against the top of the connecting block 502 to prevent the limiting rod 5023 from continuing to rotate, thereby also fixing the angle of the mounting rod 5. In this way, the mounting rod 5 can be adjusted at a more comprehensive angle without being restricted, enabling the limit hook 503 to move to various positions of the side plate 3, so that the steel bars can slide to the specified positions for the connection and fixation of the main bars, without the need for manual control and stability, avoiding inconvenience in construction and erection due to space limitations in the closure section.

Claims

1. A support for the closure section construction of a bridge, comprising a bridge (1), a slide rail (2) is arranged on the top of the bridge (1), a support (201) is connected to the top of the slide rail (2), a connecting beam (202) is arranged on the top of the slide rail (2), side plates (3) are connected to both ends of the connecting beam (202), and a bottom plate (4) is connected to the bottom of the bridge (1), characterized in that, A connecting block (502) is provided at the top of the side plate (3). A socket cylinder (501) is connected to one side of the connecting block (502). An installation rod (5) is connected to the middle of the socket cylinder (501). A limiting hook (503) is provided at one end of the installation rod (5). The socket cylinder (501) is rotatably connected to one side of the connecting block (502), and a rotating ring groove (504) is provided on the side wall of the installation rod (5).

2. The support for the construction of the closure section of a bridge according to claim 1, characterized in that there is a certain gap between the bottom of the socket cylinder (501) and the top of the side plate (3).

3. The support for the construction of the closure section of a bridge according to claim 1, characterized in that the socket cylinder (501) includes a lifting ring (5011) and a transmission gear (5012). The lifting ring (5011) is rotatably connected to the bottom of the socket cylinder (501), and the transmission gear (5012) is provided on one side of the socket cylinder (501).

4. The support for the construction of the closure section of a bridge according to claim 3, characterized in that the inner wall of the lifting ring (5011) is thread-matched with the side wall of the installation rod (5).

5. The support for the construction of the closure section of a bridge according to claim 3, characterized in that the transmission gear (5012) is a helical gear, and the socket cylinder (501) is movably connected to one side of the connecting block (502) through the transmission gear (5012) connected to one side.

6. The support for the construction of the closure section of a bridge according to claim 1, characterized in that the connecting block (502) includes a rotating gear (5021), a lifting groove (5022), a limiting rod (5023) and a abutting rod (5024). The rotating gear (5021) is connected to the inner wall of the connecting block (502). The lifting groove (5022) is provided inside the connecting block (502). The limiting rod (5023) is connected to the middle of the lifting groove (5022), and the abutting rod (5024) is connected to one side of the top of the limiting rod (5023).

7. The support for the construction of the closure section of a bridge according to claim 6, characterized in that the rotating gear (5021) is meshed with the transmission gear (5012), and the lifting groove (5022) is a groove penetrating through the middle of the rotating gear (5021).

8. The support for the construction of the closure section of a bridge according to claim 6, characterized in that the limiting rod (5023) is a rod body with an outer wall thread-matched with the inner wall of the lifting groove (5022), and sliding grooves are provided on both sides of the limiting rod (5023). Sliders cooperating with the sliding grooves are provided on both sides of the inner wall of the through hole in the middle of the rotating gear (5021).

9. The support for the construction of the closure section of a bridge according to claim 1, characterized in that the rotating ring groove (504) is an annular groove on the side wall of the installation rod (5) near the top end.

10. The construction process of the support for the construction of the closure section of a bridge based on any one of claims 1-9 is as follows; First step, install a slide rail (2) on the part of the mid-span of the bridge (1) that needs to be closed, and then connect a bracket (201) to the slide rail (2); Second step, stably install a connecting beam (202) through the bracket (201), and then connect side plates (3) at both ends of the connecting beam (202) through multiple steps including tying of steel bars, installation of prestressed ducts, and erection of formwork to enclose both sides of the closure section, and then connect a bottom plate (4) to the bottom of the bridge (1); Third step, after the side plates (3) and the bottom plate (4) are installed on the mid-span closure section of the bridge (1), a groove will be formed in the closure section. Then, a steel reinforcement cage is installed between the closure sections, and cement is poured, so as to integrally connect the mid-span closure section of the bridge (1); In the third step, when installing the steel reinforcement cage, by controlling the telescopic movement of the installation rod (5) along the sleeve cylinder (501) and the swinging movement of the sleeve cylinder (501) along the connecting block (502), the limit hook (503) at one end of the installation rod (5) can be moved to various positions, so that the steel bars can slide along the installation rod (5) to the position of the limit hook (503) for placement, thus facilitating the installation and connection and making it more convenient to install in the closure section area with limited space.

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