CN214993204U

CN214993204U - Bridge jacking device

Info

Publication number: CN214993204U
Application number: CN202120476418.5U
Authority: CN
Inventors: 冯念; 徐浩然; 李杨; 王金良; 刘成; 卢相; 李鹏亮; 胡斌; 母树然; 朱怀勇; 赵凯兵
Original assignee: China Railway 11th Bureau Group Co Ltd; Second Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
Current assignee: China Railway 11th Bureau Group Co Ltd; Second Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-12-03
Anticipated expiration: 2031-03-04

Abstract

A bridge jacking device relates to the technical field of bridge construction. The bridge jacking device comprises a supporting mechanism, a base and a jacking mechanism; the supporting mechanism is connected to the base, and the jacking mechanism is connected to one side of the base, which is far away from the supporting mechanism; the bridge jacking device is arranged below a beam body of the bridge, and the jacking mechanism is used for driving the base to move towards the beam body so as to drive the supporting mechanism to be abutted against the beam body and support the beam body. The bridge jacking device can improve the stability of a bridge crossing an expressway, and cannot influence the driving height limit of the expressway.

Description

Bridge jacking device

Technical Field

The utility model relates to a bridge construction technical field particularly, relates to a bridge jacking device.

Background

Along with the expansion of the scale of highway construction in China, the construction of the highway in a three-dimensional crossing way is performed in the construction process, the construction conditions of the highway crossing busy are more and more, and various bridge structures with large span and large tonnage are generated at the same time.

When the bridge frame facility man-hour is carried out across the highway, the requirements on the strength, the rigidity, the stability and the like of the Berea beam are high. At this time, if the single-layer beret is adopted for construction, the strength, rigidity and stability of the beam body of the bridge are difficult to guarantee; if the double-layer beret is adopted, the distance between the bridge and the highway pavement can be reduced, and the requirement of the highway on the driving limit can not be met. Therefore, how to improve the stability of the bridge crossing the highway becomes a technical problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bridge jacking device, it can improve the steadiness of strideing across highway's bridge, and can not lead to the fact the influence to highway's driving limit for height.

The embodiment of the utility model is realized like this:

one aspect of the present invention provides a bridge jacking device, which includes a supporting mechanism, a base and a jacking mechanism; the supporting mechanism is connected to the base, and the jacking mechanism is connected to one side of the base, which is far away from the supporting mechanism; the bridge jacking device is arranged below a beam body of the bridge, and the jacking mechanism is used for driving the base to move towards the beam body so as to drive the supporting mechanism to be abutted against the beam body and support the beam body. The bridge jacking device can improve the stability of a bridge crossing an expressway, and cannot influence the driving height limit of the expressway.

Optionally, the supporting mechanism includes a supporting seat, a column set connected above the supporting seat, and a supporting plate connected above the column set, the supporting seat is connected with the base, and the supporting plate is used for abutting against the beam body.

Optionally, the column group includes a plurality of steel pipes that distribute along first direction, and the length direction of first direction and the roof beam body is perpendicular, and the steel pipe intussuseption is filled with the concrete.

Optionally, the outer peripheral wall of the steel tube is coated with a buffer coating.

Optionally, the base comprises a first pillar mechanism and a second pillar mechanism arranged side by side, and a connecting mechanism connected between the first pillar mechanism and the second pillar mechanism.

Optionally, the base further includes a jacking cross beam connected between the first pillar mechanism and the second pillar mechanism, and a driving end of the jacking mechanism is connected with the jacking cross beam and used for driving the supporting mechanism to move towards the beam body through the jacking cross beam.

Optionally, the first support mechanism includes a plurality of first connecting columns distributed along a first direction, the second support mechanism includes a plurality of second connecting columns distributed along the first direction, and the first direction is perpendicular to the arrangement direction of the first support mechanism and the second support mechanism.

Optionally, reinforcing ribs are connected between two adjacent first connecting columns and between two adjacent second connecting columns.

Optionally, the jacking mechanism is a jack.

Optionally, the bridge jacking device further comprises a plurality of sets of limiting mechanisms, and the plurality of sets of limiting mechanisms are uniformly distributed on two opposite sides of the base and used for limiting the movement of the base along the horizontal direction.

The beneficial effects of the utility model include:

the embodiment provides a bridge jacking device which comprises a supporting mechanism, a base and a jacking mechanism; the supporting mechanism is connected to the base, and the jacking mechanism is connected to one side of the base, which is far away from the supporting mechanism; the bridge jacking device is arranged below a beam body of the bridge, and the jacking mechanism is used for driving the base to move towards the beam body so as to drive the supporting mechanism to be abutted against the beam body and support the beam body. Like this, when using, can be earlier in the below of the roof beam body of bridge, and be located the space between highway's the left and right sides protecting wall and set up bridge jacking device, then, start climbing mechanism to through the motion of climbing mechanism drive base, and then drive the direction motion of supporting mechanism towards the roof beam body, so that the top of supporting mechanism and the bottom butt of the roof beam body, thereby the bottom that acts on the roof beam body plays the support reinforcing effect to the roof beam body. The application provides a bridge jacking device can effectively utilize the space between highway's both sides protecting wall to improve the steadiness of strideing across highway's bridge, and can not lead to the fact the influence to highway's driving limit for height.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is one of schematic structural diagrams of a bridge lifting device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken at 1-1 in FIG. 1;

FIG. 3 is a cross-sectional view taken at 2-2 of FIG. 1;

fig. 4 is a second schematic structural diagram of a bridge jacking device according to an embodiment of the present invention.

Icon: 10-a support mechanism; 11-a support seat; 12-a column set; 121-steel pipes; 1211-concrete; 13-a support plate; 20-a base; 21-a first strut mechanism; 211-a first connecting column; 22-a second strut mechanism; 221-a second connecting column; 23-a connection mechanism; 24-jacking the cross beam; 30-a jacking mechanism; 40-a limiting mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 4, the present embodiment provides a bridge jacking apparatus, which includes a supporting mechanism 10, a base 20, and a jacking mechanism 30; the supporting mechanism 10 is connected to the base 20, and the jacking mechanism 30 is connected to one side of the base 20, which is far away from the supporting mechanism 10; the bridge jacking device is arranged below a beam body of the bridge, and the jacking mechanism 30 is used for driving the base 20 to move towards the beam body so as to drive the supporting mechanism 10 to abut against the beam body and support the beam body. The bridge jacking device can improve the stability of a bridge crossing an expressway, and cannot influence the driving height limit of the expressway.

It should be noted that the bridge jacking device provided by the application is used for supporting a bridge crossing an expressway to meet the stress requirement of the bridge and avoid the influence of a bridge body of the bridge on the driving height limit of the expressway. For this reason, this bridge jacking device has been designed to this application, and this bridge jacking device can utilize the narrow space (usually the width in this narrow space is about 0.5 m) between the existing highway left and right sides protective wall, builds this bridge jacking device in the specific position of bridge below before the construction, then jacking mechanism 30 through jacking device with supporting mechanism 10 jacking to with the roof beam body butt, and then play the effect of supporting the roof beam body.

The support mechanism 10 is used to act on the lower side of a beam body of a bridge, thereby supporting the beam body. The base 20 is located below the supporting mechanism 10 and connected to the supporting mechanism 10 for supporting the supporting mechanism 10.

The jacking mechanism 30 is connected to the base 20, for example, it may be located below the base 20, or may be located on the periphery of the base 20, and the specific location of the jacking mechanism 30 is not limited in this embodiment, as long as the base 20 is driven by the jacking mechanism 30 to move, and then the supporting mechanism 10 located on the base 20 is driven to move up and down to be close to the beam and to act on the beam.

For example, the jacking mechanism 30 may be a jack or a hydraulic cylinder, etc., and is not limited herein, as long as the stroke is ensured to enable the end of the supporting mechanism 10 far from the base 20 to act on the beam. In this embodiment, the jack mechanism 30 adopts a jack, and the jack mechanism 30 includes a plurality of jacks, and a plurality of jacks are evenly distributed on two opposite sides of the base 20 (of course, also can be evenly distributed below the base 20), so that the supporting mechanism 10 can be stably raised by evenly jacking the base 20 through the plurality of jacks.

In summary, the present embodiment provides a bridge jacking apparatus, which includes a supporting mechanism 10, a base 20, and a jacking mechanism 30; the supporting mechanism 10 is connected to the base 20, and the jacking mechanism 30 is connected to one side of the base 20, which is far away from the supporting mechanism 10; the bridge jacking device is arranged below a beam body of the bridge, and the jacking mechanism 30 is used for driving the base 20 to move towards the beam body so as to drive the supporting mechanism 10 to abut against the beam body and support the beam body. Like this, when using, can be earlier in the below of the roof beam body of bridge, and be located the space between the left and right sides protecting wall of highway and set up bridge jacking device, then, start climbing mechanism 30 to through the motion of climbing mechanism 30 drive base 20, and then drive the direction motion of supporting mechanism 10 towards the roof beam body, so that the top of supporting mechanism 10 and the bottom butt of the roof beam body, thereby the bottom that acts on the roof beam body plays the support reinforcing effect to the roof beam body. The application provides a bridge jacking device can effectively utilize the space between highway's both sides protecting wall to improve the steadiness of strideing across highway's bridge, and can not lead to the fact the influence to highway's driving limit for height.

Referring to fig. 4, the supporting mechanism 10 may optionally include a supporting base 11, a column set 12 connected above the supporting base 11, and a supporting plate 13 connected above the column set 12, wherein the supporting base 11 is connected with the base 20, and the supporting plate 13 is used for abutting against the beam body.

Wherein, the supporting seat 11 is used for bearing the upright post group 12, and the supporting plate 13 is used for strengthening the steadiness of butt with the roof beam body butt of bridge.

For example, the supporting seat 11 may include a horizontal frame distributed along a horizontal direction and a plurality of longitudinal beams distributed along a vertical direction, and the plurality of longitudinal beams are uniformly distributed at the bottom of the horizontal frame and connected to the horizontal frame. Of course, the support 11 may also comprise only a horizontal frame. When the support base 11 only comprises a horizontal frame, the bottom of the horizontal frame is connected with the base 20; when the support base 11 includes a horizontal frame and a plurality of longitudinal beams, one end of each of the plurality of longitudinal beams, which is far from the horizontal frame, is connected to the base 20.

Optionally, the column assembly 12 includes a plurality of steel pipes 121 distributed along a first direction, the first direction is perpendicular to the length direction of the beam, and the steel pipes 121 are filled with concrete 1211.

The first direction is perpendicular to the length direction of the beam, in other words, the column set 12 includes a plurality of steel pipes 121 distributed along the width direction of the beam. I.e., also in the same direction as the arrangement direction of the plural sets of position restricting mechanisms 40 to be mentioned later.

In addition, the steel pipe 121 is poured with concrete 1211, so that the overall strength of the steel pipe 121 can be enhanced, and the column set 12 can meet the load bearing requirement of the beam body.

Illustratively, in the present embodimentThe specification of the steel pipe 121 is

Wherein, the above 8mm is the thickness of the steel tube 121. The length of the steel pipe 121 may be determined according to a plurality of factors such as a beam body of a bridge relative to a highway pavement, etc., and those skilled in the art may obtain the length by simple analysis according to the corresponding structure of the present application, which is not described in detail herein.

In addition, a connecting member may be connected between two adjacent steel pipes 121, wherein the connecting member may be a steel pipe with a specification different from that of the steel pipe 121, for example, the steel pipe with the specification of

The steel pipe (5mm is the pipe thickness of the steel pipe).

In order to avoid damage to the bridge caused by collision with other parts of the beam body of the bridge during jacking by the jacking mechanisms 30 driving the supporting mechanisms 10, in the present embodiment, optionally, the outer circumferential wall of the steel pipe 121 is coated with a buffer coating. Illustratively, the buffer encasement is supported by a rubber band.

Referring to fig. 2 to 4, optionally, the base 20 includes a first supporting mechanism 21 and a second supporting mechanism 22 which are distributed side by side, and a connecting mechanism 23 connected between the first supporting mechanism 21 and the second supporting mechanism 22.

In order to facilitate the connection and fixation of the jacking mechanism 30 and the base 20, and further drive the base 20 to perform the lifting motion, in this embodiment, optionally, the base 20 further includes a jacking cross beam 24 connected between the first pillar mechanism 21 and the second pillar mechanism 22, and a driving end of the jacking mechanism 30 is connected with the jacking cross beam 24, and is used for driving the supporting mechanism 10 to move towards the beam body through the jacking cross beam 24, as shown in fig. 2 and 4.

For example, one end of the jacking cross beam 24 may include a first extension section extending from the first pillar mechanism 21 toward and away from the second pillar mechanism 22, and a second extension section extending from the second pillar mechanism 22 toward and away from the first pillar mechanism 21. Therefore, the plurality of jacking mechanisms 30 can be uniformly distributed near the first extension section and the second extension section, and then the jacking mechanisms 30 act on the first extension section and the second extension section to drive the base 20 to do lifting movement.

In the present embodiment, the first support mechanism 21 includes a plurality of first connecting columns 211 distributed along a first direction, and the second support mechanism 22 includes a plurality of second connecting columns 221 distributed along the first direction, which is perpendicular to the arrangement direction of the first support mechanism 21 and the second support mechanism 22. Taking the orientation shown in fig. 4 as an example, the first support column mechanism 21 and the second support column mechanism 22 are arranged side by side in the left-right direction, and the plurality of first connecting columns 211 and the plurality of second connecting columns 221 are arranged in the front-back direction (i.e., the direction perpendicular to the paper plane).

The first connecting columns 211 and the second connecting columns 221 are the same in number and are arranged in a one-to-one correspondence manner, for example, 15 first supporting column mechanisms 21 and 15 second supporting column mechanisms 22 are respectively provided. Of course, it should be understood that the first supporting column mechanism 21 includes 15 first connecting columns 211, and the second supporting column mechanism 22 includes 15 second connecting columns 221, which are only examples, and in practical applications, the number of the first connecting columns 211 and the second connecting columns 221, the distance between two adjacent first connecting columns 211 and the distance between two adjacent second connecting columns 221, the distance between the first supporting column mechanism 21 and the second supporting column mechanism 22, and the like, can be determined by those skilled in the art according to practical needs.

In order to enhance the overall strength of the first support column mechanism 21 and the second support column mechanism 22, optionally, reinforcing ribs are connected between two adjacent first connecting columns 211 and between two adjacent second connecting columns 221.

Optionally, in order to avoid the horizontal displacement of the supporting mechanism 10 during the lifting process, the bridge jacking device further includes a plurality of sets of limiting mechanisms 40, where the plurality of sets of limiting mechanisms 40 are uniformly distributed on two opposite sides of the base 20, and are used for limiting the movement of the base 20 along the horizontal direction.

For example, as shown in fig. 1 and 4, the limiting mechanism 40 may be a frame structure formed by welding i-beams, wherein the limiting mechanism 40 may include multiple groups uniformly distributed on two sides of the base 20. Thus, when the jacking mechanism 30 drives the supporting mechanism 10 to ascend and descend, the limiting mechanism 40 can play a role in limiting the left and right deviation of the supporting mechanism 10.

Wherein, the multiple sets of limiting mechanisms 40 positioned on the same side of the base 20 can also be connected with each other through the connecting beam, so that the limiting effect can be further improved.

The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

Claims

1. A bridge jacking device is characterized by comprising a supporting mechanism, a base and a jacking mechanism; the supporting mechanism is connected to the base, and the jacking mechanism is connected to one side of the base, which is far away from the supporting mechanism; the bridge jacking device is arranged below a beam body of a bridge, and the jacking mechanism is used for driving the base to move towards the beam body so as to drive the supporting mechanism to abut against the beam body and support the beam body.

2. The bridge jacking device of claim 1, wherein the support mechanism comprises a support base, a set of columns connected above the support base, and a support plate connected above the set of columns, the support base being connected to the base, the support plate being adapted to abut against the beam.

3. The bridge jacking device as claimed in claim 2, wherein the column set comprises a plurality of steel pipes distributed in a first direction, the first direction is perpendicular to the length direction of the beam body, and the steel pipes are filled with concrete.

4. A bridge jacking device as claimed in claim 3, wherein the outer peripheral wall of the steel pipe is coated with a buffer coating.

5. The bridge jacking device of claim 1, wherein the base includes first and second leg mechanisms disposed side-by-side, and a connection mechanism connected between the first and second leg mechanisms.

6. The bridge jacking device of claim 5, wherein the base further comprises a jacking beam connected between the first and second strut mechanisms, and a driving end of the jacking mechanism is connected with the jacking beam for driving the support mechanism to move towards the beam body through the jacking beam.

7. The bridge jacking device of claim 5, wherein the first bracing mechanism includes a plurality of first connecting columns distributed along a first direction, and the second bracing mechanism includes a plurality of second connecting columns distributed along the first direction, the first direction being perpendicular to the direction of arrangement of the first bracing mechanism and the second bracing mechanism.

8. The bridge jacking device as claimed in claim 7, wherein reinforcing ribs are connected between two adjacent first connecting columns and between two adjacent second connecting columns.

9. A bridge jacking device as claimed in claim 1, wherein the jacking mechanism is a jack.

10. The bridge jacking device of claim 1, further comprising a plurality of sets of limiting mechanisms uniformly distributed on opposite sides of the base for limiting movement of the base in a horizontal direction.