Bridge continuous jacking system and jacking construction method

Abstract

The application discloses a bridge continuous jacking system and jacking construction method, and relates to the field of bridge construction.The device comprises a base, a rotating support device and a jacking device.The rotating support device is erected on the base and can rotate on the base.The rotating support device is provided with a receiving groove for receiving a cushion beam, and a support surface is formed at the port of the receiving groove.The jacking device is located below the receiving groove, and the jacking device can drive the cushion beam to move.When the cushion beam moves above the support surface, the support surface is used for rotating and supporting the cushion beam.The jacking device is provided with the rotating support device, and a jacking part is arranged at the bottom of the rotating support device, so that construction personnel can perform jacking construction in situ without the help of large lifting equipment, and the upper structure of the bridge can be transferred.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bridge construction technology, in particular to a bridge continuous jacking system and jacking construction method. BACKGROUND

[0002] At present, the national highway and railway network has basically formed, and the traffic basically meets the use demand of people. However, with the continuous development of economy and the increasingly fast urbanization process, the traffic flow of many existing bridges has far exceeded the design flow. Under the long-term overload effect, the support has been damaged. The construction personnel need to replace the support in time. In the related technology, for the existing bridge, the construction personnel generally jacks up the main beam structure to make the main beam structure separate from the support, then replaces the support, and then lowers it to complete the renewal of the old bridge maintenance structure.

[0003] However, most of the bridges in the city are expanded on the basis of the original road network, which causes the construction site left by these line bridges at their bridge sites to be narrow and fragmented. The construction process is limited by the insufficient space of the construction site of large construction equipment and construction materials, and it is difficult to be effectively organized. Moreover, the jacking stroke of the bridge jacking equipment is limited, and it is mostly necessary to continuously add cushion beams, which makes the construction steps complex and difficult, resulting in a long construction period, so that the surrounding environment of the city is negatively affected by the construction noise for a longer time. SUMMARY

[0004] In view of the problems in the prior art that the bridge jacking construction is limited by the site and the jacking stroke of the jacking equipment, the construction difficulty is great and the construction period is long, the present application provides a bridge continuous jacking system, which comprises: a base, a rotating support device and a jacking device; wherein,

[0005] The rotating support device is erected on the base and can rotate on the base. The rotating support device is provided with a receiving groove for receiving a cushion beam, and a support surface is formed at the port of the receiving groove;

[0006] The jacking device is located below the receiving groove, and the jacking device can drive the cushion beam to move;

[0007] When the cushion beam moves above the support surface, the support surface is used to rotate and support the cushion beam.

[0008] In some embodiments, the rotating support device comprises:

[0009] A rotating part is arranged on the base;

[0010] A support part is arranged above the rotating part, and the support part is provided with the receiving groove; wherein,

[0011] The rotating part is used to drive the supporting part to rotate around the center thereof.

[0012] In some embodiments, the rotating part comprises:

[0013] A bearing part supported on the base, a top surface of the bearing part being provided with the supporting part;

[0014] At least one driving motor connected to the bearing part, the driving motor being used to drive the bearing part to rotate.

[0015] In some embodiments, the rotating part comprises two driving motors, the two driving motors being symmetrically arranged on the side wall surface of the base, and each driving motor being connected to the bearing part through a gear transmission system.

[0016] In some embodiments, the continuous lifting system of the bridge further comprises at least one conveying belt device, the height of the conveying belt device being flush with the receiving groove of the rotating supporting device, the conveying belt device being used to be connected to the receiving groove and to convey or receive the cushion beam to the receiving groove.

[0017] In some embodiments, the continuous lifting system of the bridge comprises two conveying belt devices, the conveying directions of the conveying belt devices being at an angle of 90°.

[0018] In some embodiments, the bottom of the receiving groove is provided with a through hole, the lifting device comprises at least one jack, the jack is arranged on the base, and the jack corresponds to the position of the through hole of the receiving groove.

[0019] In another aspect, the application provides a lifting construction method using the continuous lifting system of the bridge as described in any one of the above aspects, which comprises the following steps:

[0020] S1. The cushion beam is arranged in the receiving groove of the rotating supporting device;

[0021] S2. The cushion beam in the receiving groove is lifted by the lifting device until the bottom of the cushion beam is higher than the top surface of the rotating supporting device;

[0022] S3. The rotating supporting device is driven to rotate;

[0023] S4. The lifting device is driven to retract so that the cushion beam is placed on the top surface of the rotating supporting device;

[0024] S5. The steps S1-S4 are repeated until the bridge reaches the preset height.

[0025] In some embodiments, the driving the rotating support device to rotate includes driving the support portion to rotate by the rotating portion until the top surface of the support portion corresponds to the position of the support point of the cushion beam bottom.

[0026] In some embodiments, the inserting the cushion beam into the receiving groove includes:

[0027] Laying the cushion beam on the conveying belt device;

[0028] Conveying the cushion beam into the receiving groove by the conveying belt device.

[0029] Compared with the prior art, the present application sets the rotating support device and sets the jacking member at the bottom of the rotating support device, so that the construction personnel can perform jacking construction in situ without the help of large hoisting equipment, to realize the transfer of the bridge superstructure. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 is a schematic view of the continuous jacking platform in the embodiment of the present application;

[0032] Figure 2 is a sectional view of the embodiment of the present application from the 1-1 perspective; Figure 1

[0033] Figure 3 is a schematic view of the embodiment of the present application from the 2-2 perspective; Figure 1

[0034] Figure 4 is a schematic view of the continuous jacking platform in the embodiment of the present application in the longitudinal bridge direction in the use state;

[0035] Figure 5 is a schematic view of the continuous jacking platform in the embodiment of the present application in the transverse bridge direction in the use state;

[0036] Figure 6 is a schematic view of the continuous jacking platform in the embodiment of the present application in step S1;

[0037] Figure 7 is a schematic view of the continuous jacking platform in the embodiment of the present application in step S2;

[0038] Figure 8 is a schematic view of the continuous jacking platform in the embodiment of the present application in step S5. ​​

[0039] In the figure: 1, base; 2, jacking device; 3, rotating support device; 31, receiving groove; 32, rotating part; 321, bearing part; 322, driving motor; 33, support part; 34, support surface; 4, cushion beam; 5, conveying belt device; 6, bridge; 7, bridge support platform. DETAILED DESCRIPTION

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0041] The embodiments of the present application are further described below with reference to the accompanying drawings. In view of the problem that the bridge jacking construction in the prior art is limited by the site and the jacking stroke of the jacking equipment, the construction is difficult and the construction period is long, as shown in Figure 1 、 Figure 4 and Figure 5 , the present application provides a bridge continuous jacking system, which comprises a base 1, a rotating support device 3, and a jacking device 2; wherein,

[0042] the rotating support device 3 is erected on the base 1 and can rotate on the base 1, the rotating support device 3 is provided with a receiving groove 31 for receiving a cushion beam 4, and a support surface 34 is formed at the port of the receiving groove 31; the jacking device 2 is located below the receiving groove 31, and the jacking device 2 can drive the cushion beam 4 to move;

[0043] when the cushion beam 4 moves above the support surface 34, the support surface 34 is used to rotate and support the cushion beam 4.

[0044] In some specific embodiments, the base 1 is used to be erected on the ground; the rotating support device 3 is erected on the base 1, the top surface of the rotating support device 3 is used to carry the cushion beam 4, part of the rotating support device 3 can perform autorotation on the base 1, the rotating support device 3 is provided with a receiving groove 31 which is arranged through in the horizontal direction, the receiving groove 31 is used to receive the cushion beam 4, and the bottom of the receiving groove 31 is provided with a through hole; the jacking device 2 is arranged in the base, and the execution end of the jacking device 2 is used to perform an extension action in the vertical direction to jacking the cushion beam 4 in the receiving groove 31, or perform a retraction action to place the cushion beam 4 on the top surface of the rotating support device 3.

[0045] It can be understood that, as Figure 5As shown, the jacking construction of the general bridge 6 needs two above-mentioned jacking systems.

[0046] Preferably, the rotating support device 3 is pre-installed with a bridge support platform 7. The bridge support platform 7 is installed with cushion blocks, and the positions of the cushion blocks correspond to the fulcrum positions of the upper part of the bridge 6 to be jacked. In this way, the upper structure of the bridge 6 will not be damaged during the jacking process. When the first cushion beam 4 is jacked, it will support the bridge support platform 7, so that the bridge support platform 7 is lifted together with the cushion beam 4.

[0047] Specifically, the rotating support device 3 comprises a rotating part 32 and a support part 33.

[0048] The rotating part 32 is arranged on the base 1. The support part 33 is arranged above the rotating part 32, and the support part 33 is provided with the receiving groove 31; wherein,

[0049] The rotating part 32 is used to drive the support part 33 to rotate around the center thereof.

[0050] Further, as shown in Figure 2 and Figure 3 In order to facilitate the control of the construction personnel, the rotating part 32 comprises a bearing part 321 and at least one driving motor 322; wherein,

[0051] The bearing part 321 is supported on the base 1, and the top surface of the bearing part 321 is provided with the support part 33. The driving motor 322 is connected with the bearing part 321, and the driving motor 322 is used to drive the bearing part 321 to rotate.

[0052] Specifically, the rotating part 32 comprises two driving motors 322, and the two driving motors 322 are symmetrically arranged on the side wall surface of the base 1, and each driving motor 322 is connected with the bearing part 321 through a gear transmission system.

[0053] Preferably, in order to further save the construction period of the construction personnel, the bridge continuous jacking system further comprises at least one conveying belt device 5, and the height of the conveying belt device 5 is flush with the receiving groove 31 of the rotating support device 3. The conveying belt device 5 is used to be connected with the receiving groove 31 and to convey or receive the cushion beam 4 to the receiving groove 31.

[0054] It can be understood that the conveying belt device 5 is used to assist the cushion beam 4 to be moved into the receiving groove 31. The original complex hoisting construction is changed into a relatively simple horizontal construction.

[0055] Preferably, in order to shorten the construction period, the bridge continuous jacking system comprises two conveying belt devices 5, and the included angle between the conveying directions of the conveying belts of the two conveying belt devices 5 is 90°.

[0056] It is worth mentioning that the two conveyor belt devices 5 sequentially deliver the cushion beam 4 to the rotating support device 3. The range of rotation of the conveyor belt device 5 is reduced, and after the cushion beam 4 is lifted, the conveyor belt device 5 can be rotated by 90° to provide a support point for the previous cushion beam 4 and to dock the next cushion beam 4.

[0057] In some embodiments, the jacking device 2 can not be arranged in the base 1, but can be arranged outside the base 1 to lift and lower the cushion beam 4.

[0058] Optionally, the jacking device 2 can use at least one jack.

[0059] In some specific embodiments, the base 1 is in a hollow table structure. The jacking device 2 is accommodated inside the base 1. The position of the jacking device 2 corresponds to the center of the rotating support device 3.

[0060] On the other hand, the application provides a jacking construction method using the above-mentioned bridge continuous jacking system, which comprises the following steps:

[0061] S1. The cushion beam 4 is arranged in the receiving groove 31 of the rotating support device 3.

[0062] Specifically, as shown in the drawings, the cushion beam 4 is lowered on the conveyor belt device 5, and the conveyor belt device 5 delivers the cushion beam 4 to the receiving groove 31. Figure 6

[0063] S2. The jacking device 2 lifts the cushion beam 4 in the receiving groove 31 until the bottom of the cushion beam 4 is higher than the top surface of the rotating support device 3.

[0064] Specifically, as shown in the drawings, the jacking device 2 is controlled by the construction personnel to lift the cushion beam 4 until it is separated from the jacking device 2. Figure 7

[0065] S3. The rotating support device 3 is driven to rotate.

[0066] Specifically, the rotating part 32 drives the support part 33 to rotate until the top surface of the support part 33 corresponds to the support point position of the bottom of the cushion beam 4. It can be understood that the support part 33 only needs to be rotated to be sufficient to support the bottom of the cushion beam 4. In some preferred embodiments, the rotating part 32 drives the support part 33 to rotate and dock with another conveyor belt device 5.

[0067] S4. The jacking device 2 is driven to retract so that the cushion beam 4 is lowered on the top surface of the rotating support device 3.

[0068] S5. The above steps S1-S4 are repeated until the bridge 6 reaches the preset height.​​

[0069] Specifically, such as Figure 8 As shown, when the previous pad beam 4 is supported by the rotating support device 3, the next pad beam 4 is driven into the rotating support device 3 to continue to lift. The above steps are repeated until the bridge 6 reaches the preset height.

[0070] It is understandable that after the jacking construction in this application is completed, the multiple pad beams 4 can be removed in sequence using the same method described above.

[0071] In summary, this invention, by incorporating a rotating support device and a lifting component at its bottom, allows construction workers to perform in-situ lifting operations without the need for large lifting equipment, thus enabling the transfer of the bridge superstructure. It also occupies a small area, making it suitable for urban environments. Furthermore, the continuous bridge lifting system of this application features a simple structure, convenient operation, strong versatility, low safety risks during construction, and the lifting height is not limited by the extension range of the movable end of conventional lifting equipment.

[0072] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0073] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0074] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A method for construction of jacking using a bridge continuous jacking system, characterized by, The bridge continuous lifting system comprises: a base (1); a rotating support device (3) erected on the base (1) and capable of rotating on the base (1), the rotating support device (3) being provided with a receiving groove (31) for receiving a cushion beam (4) and a support surface (34) formed at the port of the receiving groove (31); a lifting device (2) located below the receiving groove (31), the lifting device (2) being capable of driving the cushion beam (4) to move; when the cushion beam (4) moves above the support surface (34), the support surface (34) is used for rotating and supporting the cushion beam (4) afterwards; further comprising two conveying belt devices (5) with a height flush with the receiving groove (31) of the rotating support device (3), the conveying belt devices (5) being used for abutting against the receiving groove (31) and conveying or receiving the cushion beam (4) to the receiving groove (31); the included angle between the conveying directions of the conveying belts of the two conveying belt devices (5) is 90°; the lifting construction method comprises the following steps: S1. The cushion beam (4) is arranged in the receiving groove (31) of the rotating support device (3); S2. The cushion beam (4) in the receiving groove (31) is lifted by the lifting device (2) until the bottom of the cushion beam (4) is higher than the top surface of the rotating support device (3); S3. The rotating support device (3) is driven to rotate; S4. The lifting device (2) is driven to retract so that the cushion beam (4) is placed on the top surface of the rotating support device (3); S5. The steps S1-S4 are repeated until the bridge (6) reaches the preset height.

2. The incremental launching method according to claim 1, wherein The rotating support device (3) comprises: a rotating part (32) arranged on the base (1); a support part (33) arranged above the rotating part (32), the support part (33) being provided with the receiving groove (31) therein; wherein the rotating part (32) is used for driving the support part (33) to rotate around the center thereof.

3. The incremental launching method according to claim 2, wherein The rotating part (32) comprises: a bearing part (321) supported on the base (1), the top surface of the bearing part (321) being provided with the support part (33); at least one driving motor (322) connected with the bearing part (321), the driving motor (322) being used for driving the bearing part (321) to rotate.

4. The incremental launching method according to claim 3, wherein The rotating part (32) comprises: two driving motors (322) symmetrically arranged on the side wall surface of the base (1), and each driving motor (322) is connected with the bearing part (321) through a gear transmission system.

5. The incremental launching method according to claim 1, wherein: The bottom of the receiving groove (31) is provided with a through hole, and the lifting device (2) comprises at least one jack, the jack being arranged on the base (1) and corresponding to the position of the through hole of the receiving groove (31).

6. The incremental launching method according to claim 2, wherein The driving of the rotation support device (3) to rotate includes: driving the support part (33) to rotate through the rotation part (32) until the top surface of the support part (33) corresponds to the position of the support point of the cushion beam (4) bottom.

7. The incremental launching method according to claim 1, wherein The placing of the cushion beam (4) in the receiving groove (31) of the rotation support device (3) includes: The cushion beam (4) is placed on the conveyor belt device (5); The cushion beam (4) is conveyed into the receiving groove (31) by the conveyor belt device (5).

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