Bridge water damage beam rapid erecting device and construction method

Abstract

The application discloses a bridge water-damaged beam plate rapid erecting device and a construction method, the device comprises a pulling gantry device, a pushing device, a sling connecting device, a rolling supporting device, a counterforce device, an anchoring device and a temporary lengthened beam section, the pulling gantry device comprises a frame body, a cross beam and a suspension device, the frame body is anchored on a roadbed and / or a bridge deck through the anchoring device, the cross beam is fixedly connected at the top of the frame body, and the suspension device is installed on the cross beam, the rolling supporting device is arranged below a precast beam plate, the counterforce device is anchored on the roadbed and / or the bridge deck through the anchoring device, the pushing device is connected with the counterforce device and used for pushing the precast beam plate to move forward, the sling connecting device is detachably connected with pre-buried members at the front and back ends of the precast beam plate and can be connected with a sling of the suspension device, and the temporary lengthened beam section can be detachably connected at the back end of the precast beam plate, and the bridge water-damaged beam plate erecting construction can be completed without using large hoisting equipment, the construction is rapid and low in cost.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a rapid erection device and construction method for bridge beams damaged by water. Background Technology

[0002] With the development of the construction industry, bridge construction technology is also steadily advancing, and the number and scale of bridge projects are constantly expanding. When the superstructure of a bridge is damaged during construction or later, and needs replacement, common methods include bridge erection using bridge-erecting machines, in-situ installation using gantry cranes, and installation using large lifting equipment (crawler cranes). These methods are greatly affected by the site and environment; in situations with poor transportation or limited surrounding geological conditions, significant manpower and resources are often required. In remote mountainous areas, large lifting equipment often cannot arrive on time, hindering the rapid erection of water-damaged beams. Moreover, using large lifting equipment for construction incurs high manpower and material costs. Summary of the Invention

[0003] The purpose of this invention is to provide a rapid erection device and construction method for bridge beams damaged by floods, so as to solve the problems existing in the prior art. It can complete the erection of beams of flood-damaged bridges without the use of large lifting equipment, and the construction is fast and low-cost.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides a rapid erection device for bridge beams damaged by flooding, comprising a traction platform, a jacking device, a cable connection device, a rolling support device, a reaction device, an anchoring device, and a temporary extended beam segment. The traction platform includes a frame, a crossbeam, and a suspension device. The frame is anchored to the roadbed and / or bridge deck via the anchoring device. The crossbeam is fixedly connected to the top of the frame. The suspension device is installed on the crossbeam. The rolling support device is located below the precast beam and rolls in contact with the precast beam to provide rolling support. The reaction device is anchored to the roadbed and / or bridge deck via the anchoring device. The jacking device is connected to the reaction device and, supported by the reaction device, jacks the precast beam forward on the rolling support device. The cable connection device is detachably connected to the embedded parts at both ends of the precast beam and can be connected to the cables of the suspension device. The temporary extended beam segment is detachably connected to the rear end of the precast beam.

[0006] Preferably, the embedded part is an embedded sleeve, and the sling connection device is threadedly connected to the embedded sleeve.

[0007] Preferably, the jacking device includes a lifting cylinder, a pushing cylinder, and a slide rail assembly. The slide rail assembly includes a slide rail and a slider. The slide rail is used to anchor to the roadbed and / or bridge deck. The slider is slidably disposed on the slide rail. The cylinder of the pushing cylinder is rotatably connected to the reaction device. The piston rod of the pushing cylinder is rotatably connected to one side of the piston rod of the lifting cylinder. The cylinder of the lifting cylinder is fixed to the slider. The piston rod of the lifting cylinder can extend and retract to press or release the precast beam slab.

[0008] Preferably, the frame includes a horizontal frame and a vertical frame connected vertically, and an inclined support is fixedly connected between the horizontal frame and the vertical frame; the horizontal frame is anchored to the roadbed and / or bridge deck by the anchoring device.

[0009] Preferably, the sling connection device is an eye bolt, and the sling is connected to the eye bolt via a hook.

[0010] Preferably, the rolling support device includes a base and a plurality of rollers rotatably connected to the base, the base being anchored to the roadbed and / or bridge deck by the anchoring device.

[0011] Preferably, the temporary extended beam segment is connected to the bolt sleeve pre-embedded at the rear end of the precast beam slab via bolts.

[0012] This invention also provides a method for rapid erection of bridge beams damaged by floods, using the aforementioned rapid erection device for bridge beams damaged by floods, and includes the following steps:

[0013] (1) According to the needs of the construction site, the reaction device is anchored to the roadbed and / or bridge deck through the anchoring device, the jacking device is connected to the reaction device, and the rolling support device is anchored to the roadbed and / or bridge deck through the anchoring device; the traction platform device is transported to the position where the precast beams need to be erected and assembled, and the frame is anchored to the roadbed and / or bridge deck through the anchoring device;

[0014] (2) Place the precast beam on the rolling support device, and push the precast beam forward by the jacking device. When the precast beam is moved forward to the point where the sling connection device can be installed on the embedded part at its front end, stop pushing the precast beam, connect the sling connection device to the embedded part, and connect the sling of the suspension device to the sling connection device, and suspend the front end of the precast beam by the suspension device.

[0015] (3) Continue to push the precast beam forward while gradually releasing the slings of the suspension device; before the rear end of the precast beam leaves the bridge deck, install the temporary extended beam segment at the rear end of the precast beam;

[0016] (4) Continue to push the precast beam forward until the front end of the precast beam reaches the predetermined position; gradually release the sling of the suspension device so that the front end of the precast beam falls onto the cap beam;

[0017] (5) Install the sling connection device on the embedded part at the rear end of the precast beam slab, connect the sling of the suspension device to the sling connection device at the rear end, tighten the sling of the suspension device, and remove the temporary extended beam segment;

[0018] (6) Gradually release the slings of the suspension device so that the rear end of the precast beam falls onto the cap beam, thus completing the installation of the precast beam.

[0019] The present invention achieves the following technical effects compared to the prior art:

[0020] The bridge beam erection device and construction method for water-damaged bridges provided by this invention utilizes a rolling support device to support the precast beam, with rolling contact between the two. A jacking device, supported by a reaction device and an anchoring device, can push the precast beam forward on the rolling support device. When the front end of the precast beam is suspended, a sling connection device is installed on a pre-embedded part at the front end of the precast beam and connected to a sling. This sling suspends the front end of the precast beam, preventing overturning as it continues to move forward. Under the suspension of the sling, the jacking device continues to push the precast beam forward. The process involves gradually releasing the slings of the suspension device while moving the precast beam. Before the rear end of the precast beam detaches from the bridge deck, a temporary extension segment is installed at the rear end of the precast beam to continue pushing it until the front end reaches the predetermined position. After the front end reaches the predetermined position, the slings of the suspension device are gradually released, allowing the front end of the precast beam to fall onto the cap beam. The slings of the suspension device are then moved to the rear end of the precast beam and tightened to facilitate the removal of the temporary extension segment. After the temporary extension segment is removed, the slings of the suspension device are gradually released, allowing the rear end of the precast beam to fall onto the cap beam, thus completing the erection and installation of the precast beam. Using this device, the erection of beams for flood-damaged bridges can be completed without the need for large lifting equipment. The construction is fast and cost-effective, making it particularly suitable for remote mountainous areas with poor transportation and limited surrounding geological conditions. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the bridge flood-damaged beam erection device provided by the present invention before passing through the hole;

[0023] Figure 2 A schematic diagram of the bridge beam erection device for water damage provided by the present invention, showing the installation of a sling connection device at the front end of the precast beam and its suspension.

[0024] Figure 3 A schematic diagram of the bridge flood-damaged beam erection device provided by the present invention, which continues to push the precast beam while suspending it;

[0025] Figure 4 A schematic diagram of the precast beam being lowered into place at the front end of the bridge beam-slab rapid erection device for water-damaged bridge beams provided for the invention.

[0026] Figure 5 A schematic diagram of the rear end of a precast beam being lowered into place using the rapid erection device for bridge beams damaged by floods, provided for the invention.

[0027] Figure 6 This is a schematic diagram of the pushing device in the invention;

[0028] Figure 7 This is a schematic diagram of the rolling support device in the invention.

[0029] In the diagram: 1-Tethering platform device, 110-Frame body, 111-Horizontal frame, 112-Vertical frame, 113-Inclined support component, 120-Crossbeam, 130-Suspension device, 131-Sling, 2-Temporary extended beam segment, 3-Precast beam slab, 4-Pushing device, 41-Lifting cylinder, 42-Pushing cylinder, 43-Slide rail, 44-Slider, 5-Sling connection device, 6-Rolling support device, 61-Base, 62-Roller, 7-Reaction device, 8-Anchoring device, 9-Roadbed, 10-Bridge deck, 11-Cap beam. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] The purpose of this invention is to provide a rapid erection device and construction method for bridge beams damaged by floods, so as to solve the problems existing in the prior art. It can complete the erection of beams of flood-damaged bridges without the use of large lifting equipment, and the construction is fast and low-cost.

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] like Figures 1-7 As shown, this embodiment provides a rapid erection device for bridge beams damaged by water, including a traction platform device 1, a jacking device 4, a sling connection device 5, a rolling support device 6, a reaction device 7, an anchoring device 8, and a temporary extended beam segment 2. The traction platform device 1 includes a frame 110, a crossbeam 120, and a suspension device 130. The frame 110 is anchored to the roadbed 9 and / or the bridge deck 10 by the anchoring device 8. The crossbeam 120 is fixedly connected to the top of the frame 110. The suspension device 130 is installed on the crossbeam 120. The rolling support device 6 is set under the precast beam 3. The rolling support device 6 makes rolling contact with the precast beam slab 3 to provide rolling support for the precast beam slab 3. The reaction device 7 is anchored to the roadbed 9 and / or bridge deck 10 via the anchoring device 8. The jacking device 4 is connected to the reaction device 7 and, supported by the reaction device 7, is used to jack the precast beam slab 3 forward on the rolling support device 6. The sling connection device 5 can be detachably connected to the embedded parts at both ends of the precast beam slab 3 and can be connected to the sling 131 of the suspension device 130. The temporary extended beam segment 2 can be detachably connected to the rear end of the precast beam slab 3.

[0035] This device supports the precast beam slab 3 via a rolling support device 6. The two components roll in contact, resulting in low friction and facilitating the forward movement of the precast beam slab 3. The jacking device 4, supported by the reaction device 7 and the anchoring device 8, pushes the precast beam slab 3 forward on the rolling support device 6. When the front end of the precast beam slab 3 is suspended, a sling connection device 5 is installed on the embedded part at the front end of the precast beam slab 3 and connected to the sling 131. The suspension device 130 suspends the front end of the precast beam slab 3, preventing overturning as it continues to move forward. Under the suspension of the suspension device 130, the jacking device 4 continues to push the precast beam slab 3 forward while gradually releasing the suspension. Before the rear end of the precast beam slab 3 detaches from the bridge deck 10, a temporary extended beam segment 2 is installed at the rear end of the precast beam slab 3 using the sling 131 of the device 130. This allows the device to continue pushing the precast beam slab 3 until its front end reaches a predetermined position. After the front end of the precast beam slab 3 reaches the predetermined position, the sling 131 of the suspension device 130 is gradually released, allowing the front end of the precast beam slab 3 to fall onto the cap beam 11. The sling 131 of the suspension device 130 is then moved to the rear end of the precast beam slab 3 and tightened to facilitate the removal of the temporary extended beam segment 2. After the temporary extended beam segment 2 is removed, the sling 131 of the suspension device 130 is gradually released, allowing the rear end of the precast beam slab 3 to fall onto the cap beam 11, thus completing the erection and installation of the precast beam slab 3. Using this device, the erection of beams for flood-damaged bridges can be completed without the use of large lifting equipment. The construction is fast and cost-effective, making it particularly suitable for remote mountainous areas with poor transportation and limited surrounding geological conditions.

[0036] In this embodiment, the embedded part is an embedded sleeve, and the sling connection device 5 is connected to the embedded sleeve by a thread.

[0037] In this embodiment, the jacking device 4 includes a lifting cylinder 41, a pushing cylinder 42, and a slide rail assembly. The slide rail assembly includes a slide rail 43 and a slider 44. The slide rail 43 is anchored to the roadbed 9 and / or the bridge deck 10. The slider 44 is slidably mounted on the slide rail 43. The cylinder of the pushing cylinder 42 is rotatably connected to the reaction device 7. The piston rod of the pushing cylinder 42 is rotatably connected to one side of the piston rod of the lifting cylinder 41. The cylinder of the lifting cylinder 41 is fixed to the slider 44. The piston rod of the lifting cylinder 41 can extend and retract to press or release the precast beam slab 3. During jacking, the piston rod of the lifting cylinder 41 extends to press the precast beam slab 3, and then the piston rod of the pushing cylinder 42 extends to push the lifting cylinder 41 to move along the slide rail 43. A rubber pad to increase friction can be provided on the contact surface between the piston rod of the lifting cylinder 41 and the precast beam slab 3 so that the precast beam slab 3 can be moved forward by friction. After one push, the piston rod of the lifting cylinder 41 retracts to its original position, and the piston rod of the pushing cylinder 42 retracts to its original position. This process is repeated to achieve continuous pushing of the precast beam slab 3.

[0038] In this embodiment, the frame 110 includes a horizontal frame 111 and a vertical frame 112 that are vertically connected. An inclined support member 113 is fixedly connected between the horizontal frame 111 and the vertical frame 112 to improve the structural strength of the frame 110. The horizontal frame 111 is anchored to the roadbed 9 and / or the bridge deck 10 by the anchoring device 8 to prevent the frame 110 from tilting when the precast beam slab 3 is suspended.

[0039] In this embodiment, the sling connection device 5 uses eye bolts, and the sling 131 is connected to the eye bolts via hooks, making installation convenient and quick.

[0040] In this embodiment, the rolling support device 6 includes a base 61 and a plurality of rollers 62 rotatably connected to the base 61. The base 61 is anchored to the roadbed 9 and / or bridge deck 10 by an anchoring device 8. The rolling support device 6 can also be an existing heavy-duty displacement device, which is placed upside down on the roadbed 9 and / or bridge deck 10 and then anchored.

[0041] Example 2

[0042] This embodiment provides a method for rapid erection of bridge beams damaged by floods, using the rapid erection device for bridge beams damaged by floods described in Embodiment 1, including the following steps:

[0043] (1) According to the needs of the construction site, the reaction device 7 is anchored to the appropriate position of the roadbed 9 and / or bridge deck 10 through the anchoring device 8, the jacking device 4 is connected to the reaction device 7, and the rolling support device 6 is anchored to the appropriate position of the roadbed 9 and / or bridge deck 10 through the anchoring device 8; the anchoring method of the anchoring device 8 can be the same as the method of chemical anchoring with rebar; the traction platform device 1 is transported to the position where the precast beam slab 3 needs to be erected and assembled, and the frame 110 is anchored to the roadbed 9 and / or bridge deck 10 through the anchoring device 8.

[0044] (2) Place the precast beam slab 3 on the rolling support device 6, and push the precast beam slab 3 forward by the jacking device 4. When the precast beam slab 3 has moved forward to the point where the sling connection device 5 can be installed on the embedded part at its front end, stop pushing the precast beam slab 3, connect the sling connection device 5 to the embedded part, and connect the sling 131 of the suspension device 130 to the sling connection device 5. The front end of the precast beam slab 3 is suspended by the suspension device 130.

[0045] (3) Continue to push the precast beam slab 3 forward while gradually releasing the slings 131 of the suspension device 130; before the rear end of the precast beam slab 3 leaves the bridge deck 10, install a temporary extended beam segment 2 at the rear end of the precast beam slab 3.

[0046] (4) Continue to push the precast beam slab 3 forward until the front end of the precast beam slab 3 reaches the predetermined position; gradually release the sling 131 of the suspension device 130 so that the front end of the precast beam slab 3 falls onto the cap beam 11;

[0047] (5) Install the sling connection device 5 on the embedded part at the rear end of the precast beam slab 3, connect the sling 131 of the suspension device 130 to the sling connection device 5 at the rear end, tighten the sling 131 of the suspension device 130, and remove the temporary extended beam section 2.

[0048] (6) Gradually release the slings 131 of the suspension device 130 so that the rear end of the precast beam slab 3 falls onto the cap beam 11, thus completing the installation of the precast beam slab 3.

[0049] After all the precast beams and slabs 3 are installed, remove the traction platform device 1, jacking device 4, sling connection device 5, rolling support device 6, anchoring device 8, etc.

[0050] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A rapid erection device for bridge beams damaged by water, characterized in that: The system includes a traction platform, a jacking device, a cable connection device, a rolling support device, a reaction device, an anchoring device, and a temporary extended beam segment. The traction platform includes a frame, a crossbeam, and a suspension device. The frame is anchored to the roadbed and / or bridge deck via the anchoring device. The crossbeam is fixedly connected to the top of the frame. The suspension device is installed on the crossbeam. The rolling support device is located below the precast beam slab and rolls in contact with the precast beam slab to provide rolling support. The reaction device is anchored to the roadbed and / or bridge deck via the anchoring device. The jacking device is connected to the reaction device and, supported by the reaction device, pushes the precast beam slab forward on the rolling support device. The sling connection device can be detachably connected to the embedded parts at both ends of the precast beam slab, and can be connected to the sling of the suspension device; the temporary extended beam segment can be detachably connected to the rear end of the precast beam slab. The jacking device includes a lifting cylinder, a pushing cylinder, and a slide rail assembly. The slide rail assembly includes a slide rail and a slider. The slide rail is used to anchor to the roadbed and / or bridge deck. The slider is slidably mounted on the slide rail. The cylinder of the pushing cylinder is rotatably connected to the reaction device. The piston rod of the pushing cylinder is rotatably connected to one side of the piston rod of the lifting cylinder. The cylinder of the lifting cylinder is fixed to the slider. The piston rod of the lifting cylinder can extend and retract to press or release the precast beam slab.

2. The rapid erection device for bridge beams damaged by water as described in claim 1, characterized in that: The embedded part is an embedded sleeve, and the sling connection device is connected to the embedded sleeve by a thread.

3. The rapid erection device for bridge beams damaged by water as described in claim 1, characterized in that: The frame includes a horizontal frame and a vertical frame connected vertically, and a diagonal support is fixedly connected between the horizontal frame and the vertical frame; the horizontal frame is anchored to the roadbed and / or bridge deck by the anchoring device.

4. The rapid erection device for bridge beams damaged by water as described in claim 2, characterized in that: The sling connection device uses an eye bolt, and the sling is connected to the eye bolt via a hook.

5. The rapid erection device for bridge beams damaged by water as described in claim 1, characterized in that: The rolling support device includes a base and a plurality of rollers rotatably connected to the base, the base being anchored to the roadbed and / or bridge deck by the anchoring device.

6. The rapid erection device for bridge beams damaged by water as described in claim 1, characterized in that: The temporary extended beam segment is connected to the bolt sleeve pre-embedded at the rear end of the precast beam slab by bolts.

7. A method for rapid erection of bridge beams damaged by water, characterized in that, Construction using the rapid erection device for bridge beams damaged by water, as described in any one of claims 1 to 6, includes the following steps: (1) According to the needs of the construction site, the reaction device is anchored to the roadbed and / or bridge deck through the anchoring device, the jacking device is connected to the reaction device, and the rolling support device is anchored to the roadbed and / or bridge deck through the anchoring device; the traction platform device is transported to the position where the precast beams need to be erected and assembled, and the frame is anchored to the roadbed and / or bridge deck through the anchoring device; (2) Place the precast beam on the rolling support device, and push the precast beam forward by the jacking device. When the precast beam is moved forward to the point where the sling connection device can be installed on the embedded part at its front end, stop pushing the precast beam, connect the sling connection device to the embedded part, and connect the sling of the suspension device to the sling connection device, and suspend the front end of the precast beam by the suspension device. (3) Continue to push the precast beam forward while gradually releasing the slings of the suspension device; before the rear end of the precast beam leaves the bridge deck, install the temporary extended beam segment at the rear end of the precast beam; (4) Continue to push the precast beam forward until the front end of the precast beam reaches the predetermined position; gradually release the sling of the suspension device so that the front end of the precast beam falls onto the cap beam; (5) Install the sling connection device on the embedded part at the rear end of the precast beam slab, connect the sling of the suspension device to the sling connection device at the rear end, tighten the sling of the suspension device, and remove the temporary extended beam segment; (6) Gradually release the slings of the suspension device so that the rear end of the precast beam falls onto the cap beam, thus completing the installation of the precast beam.

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