阅读说明：本技术 一种端口顶压调节装置及钢箱梁斜拉桥 (Port roof pressure adjusting device and steel box girder cable-stayed bridge ) 是由 鄢云祥 张银河 伍鲲鹏 黄峰 吴治忠 王兰 于 2019-12-10 设计创作，主要内容包括：本发明公开了一种端口顶压调节装置及钢箱梁斜拉桥,属于桥梁技术领域。所述端口顶压调节装置包括：第一支撑座、第二支撑座、反力支撑架及伸缩驱动机构；所述第一支撑座可拆卸地设置在第一上；所述反力支撑架可拆卸式地设置在第二节段上；所述第二支撑座固定设置在所述反力支撑架上,所述第二支撑座设置在所述第一支撑座正上方；所述伸缩驱动机构沿竖向伸缩,所述伸缩驱动机构的两端分别和所述第一支撑座以及所述第二支座做连接。本发明端口顶压调节装置及钢箱梁斜拉桥可以将钢箱梁斜拉桥两端口进行调整,达到主要受力结构对齐的要求。(The invention discloses a port jacking pressure adjusting device and a steel box girder cable-stayed bridge, and belongs to the technical field of bridges. The port top pressure adjusting device comprises: the device comprises a first supporting seat, a second supporting seat, a counter-force supporting frame and a telescopic driving mechanism; the first supporting seat is detachably arranged on the first supporting seat; the counter force support frame is detachably arranged on the second section; the second supporting seat is fixedly arranged on the counter-force supporting frame and is arranged right above the first supporting seat; the telescopic driving mechanism is vertically telescopic, and two ends of the telescopic driving mechanism are respectively connected with the first support seat and the second support seat. The port jacking pressure adjusting device and the steel box girder cable-stayed bridge can adjust two ports of the steel box girder cable-stayed bridge to meet the requirement of alignment of main stress structures.)

1. The utility model provides a port roof pressure adjusting device, is applicable to the altitude mixture control of adjacent steel box girder segment section, and two adjacent steel box girder segments are first festival section and second festival section respectively, its characterized in that, port roof pressure adjusting device includes: the device comprises a first supporting seat, a second supporting seat, a counter-force supporting frame and a telescopic driving mechanism;

the first supporting seat is detachably arranged on the adjacent first section;

the counter force support frame is detachably arranged on the adjacent second section;

the second supporting seat is fixedly arranged on the counter-force supporting frame and is arranged right above the first supporting seat;

the telescopic driving mechanism is vertically telescopic, and two ends of the telescopic driving mechanism are respectively connected with the first supporting seat and the second supporting seat.

2. The port top pressure adjusting device of claim 1, which is characterized in that:

a first web plate is fixedly arranged on the end face, facing the second supporting seat, of the first section;

the first supporting seat is fixedly arranged on the first web.

3. The port cap pressure adjustment device of claim 2, wherein the first support seat comprises: a first support plate;

the first supporting plate is fixedly connected with the first web.

4. The port top pressure adjusting device of claim 3, which is characterized in that:

two sides of the first section are fixedly provided with horse boards;

the horse board is fixedly connected with the first section through a first reinforcing plate;

the first supporting plate is fixedly connected with the web plate and the horse board through a plurality of second reinforcing plates.

5. The port top pressure adjusting device of claim 1, which is characterized in that:

a second web is fixedly arranged on the second section;

the counter-force support frame is fixedly arranged on the second web plate.

6. The port roof pressure adjustment device of claim 5, wherein the counterforce support frame comprises: the first connecting frame and the second connecting frame;

the first connecting frame is detachably connected with the second web plate;

the second connecting frame is fixedly connected with the first connecting frame, and the second supporting seat is fixedly arranged on the end face, facing the first connecting frame, of the second connecting frame.

7. The port roof pressure adjusting device as claimed in claim 6, wherein the first connecting frame and the second connecting frame each comprise: a second support plate and two side plates;

the two side plates are fixedly arranged on two sides of the second supporting plate;

and the two side plates are fixedly connected with the second supporting plate through a plurality of third reinforcing plates.

8. The port cap pressure adjustment device of claim 7, wherein the first connecting frame further comprises: a plurality of connectors;

the second web is arranged between the two side plates;

a plurality of first through holes are formed in the second supporting plate of the first connecting frame, a plurality of second through holes are formed in the second web plate, and the plurality of first through holes correspond to the plurality of second through holes one to one;

the connecting pieces are in one-to-one correspondence with the first through holes and penetrate through the corresponding first through holes to be connected with the second through holes.

9. The port top pressure adjusting device of claim 7, which is characterized in that:

and a fourth reinforcing plate is fixedly arranged between the two side plates of the second connecting frame.

10. A steel box girder cable-stayed bridge, characterized by comprising the port roof pressure adjusting device according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of bridges, in particular to a port jacking adjusting device and a steel box girder cable-stayed bridge.

Background

The steel box girder cable-stayed bridge is a structural form commonly adopted in a large-span bridge, wherein the steel box girder segments are mainly hoisted by a bridge deck crane in the field installation, and the bridge deck crane is arranged in the middle of the installed steel box girder segments. Due to the stress and the requirement of adjusting the line shape of the bridge, the two side stay cables need to be tensioned by the installed steel box girder segment, so that the axis, the elevation and the mileage of the steel box girder segment meet the erection requirement, and the steel box girder segment to be hoisted is hoisted to the line shape by the bridge deck crane to basically meet the requirement.

However, the stress states of adjacent segments are different, so that the main stress structure of the two-segment port, namely the side web has a height difference, and the height difference of the web needs to be adjusted by means of external force to eliminate the height difference due to the stress of the structure and the welding requirement. In prior art, the mode of eliminating the difference in height is for hanging the festival section through the loop wheel machine, through the adjustment of the lifting hook height of loop wheel machine to the realization is to the regulation of two festival section heights, and the operation is complicated, aligns in order to guarantee the limit web of two festival sections, wastes time and energy.

Disclosure of Invention

The invention provides a port top pressure adjusting device and a steel box girder cable-stayed bridge, which solve or partially solve the technical problems that in the prior art, the operation is complex, and time and labor are wasted in order to ensure that side webs of two sections are aligned by lifting the sections through a crane to adjust the heights of the two sections.

In order to solve the above technical problem, the present invention provides a port top pressure adjusting device, which is suitable for adjusting the heights of adjacent steel box girder segments, wherein two adjacent steel box girder segments are respectively a first segment and a second segment, and the port top pressure adjusting device comprises: the device comprises a first supporting seat, a second supporting seat, a counter-force supporting frame and a telescopic driving mechanism; the first supporting seat is detachably arranged on the first section; the counter force support frame is detachably arranged on the second section; the second supporting seat is fixedly arranged on the counter-force supporting frame and is arranged right above the first supporting seat; the telescopic driving mechanism is vertically telescopic, and two ends of the telescopic driving mechanism are respectively connected with the first supporting seat and the second supporting seat.

Further, a first web is fixedly arranged on the end face, facing the second supporting seat, of the first section; the first supporting seat is fixedly arranged on the first web.

Further, the first support base includes: a first support plate; the first supporting plate is fixedly connected with the first web.

Further, two sides of the first section are fixedly provided with horse boards; the horse board is fixedly connected with the first section through a first reinforcing plate; the first supporting plate is fixedly connected with the web plate and the horse board through a plurality of second reinforcing plates.

Further, a second web is fixedly arranged on the second segment; the counter-force support frame is fixedly arranged on the second web plate.

Further, the reaction force support frame includes: the first connecting frame and the second connecting frame; the first connecting frame is detachably connected with the second web plate; the second connecting frame is fixedly connected with the first connecting frame, and the second supporting seat is fixedly arranged on the end face, facing the first connecting frame, of the second connecting frame.

Further, first link and second link all include: a second support plate and two side plates; the two side plates are fixedly arranged on two sides of the second supporting plate; and the two side plates are fixedly connected with the second supporting plate through a plurality of third reinforcing plates.

Further, the first link frame further includes: a plurality of connectors; the second web is arranged between the two side plates; a plurality of first through holes are formed in the second supporting plate of the first connecting frame, a plurality of second through holes are formed in the second web plate, and the plurality of first through holes correspond to the plurality of second through holes one to one; the connecting pieces are in one-to-one correspondence with the first through holes and penetrate through the corresponding first through holes to be connected with the second through holes.

Furthermore, a fourth reinforcing plate is fixedly arranged between the two side plates of the second connecting frame.

Based on the same inventive concept, the application also provides a steel box girder cable-stayed bridge, which comprises a port jacking and adjusting device.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

because the first supporting seat is detachably arranged on the first segment, the first segment is installed and provides supporting force for the first supporting seat, because the counter-force supporting seat is detachably arranged on the second segment, the second supporting seat is fixedly arranged on the counter-force supporting seat, the second supporting seat 4 is arranged right above the first supporting seat, the telescopic driving mechanism extends and retracts vertically, two ends of the telescopic driving mechanism are respectively connected with the first supporting seat and the second supporting seat 4, the telescopic driving mechanism can be arranged between the first supporting seat and the second supporting seat, the fixed end of the telescopic driving mechanism is supported by the first supporting seat, the telescopic driving mechanism is started, the driving end of the telescopic driving mechanism can be controlled to act, the driving end of the telescopic driving mechanism exerts pressure on the counter-force supporting seat through the second supporting seat, the counter-force supporting seat drives the second segment to act, two end ports of the steel box girder cable-stayed bridge can be adjusted, the two steel box girder sections are aligned, so that the operation is convenient, and manpower and material resources are saved.

Drawings

Fig. 1 is a schematic structural diagram of a port pressing and adjusting device according to an embodiment of the present invention.

Detailed Description

Referring to fig. 1, an embodiment of the present invention provides a port press adjustment device, which is suitable for adjusting heights of adjacent steel box girder segments, where the adjacent two steel box girder segments are respectively a first segment and a second segment, and the port press adjustment device includes: the device comprises a first supporting seat 3, a second supporting seat 4, a counter-force supporting frame 5 and a telescopic driving mechanism.

The first support seat 3 is detachably provided on the first segment 1.

The counter force support frame 5 is detachably arranged on the second section 2.

The second supporting seat 4 is fixedly arranged on the counter-force supporting frame 5, and the second supporting seat 4 is arranged right above the first supporting seat 3.

The telescopic driving mechanism is vertically telescopic, and two ends of the telescopic driving mechanism are respectively connected with the first supporting seat 3 and the second supporting seat 4.

The second support seat 4 is fixedly arranged on the end surface of the counter-force support frame 5 facing the first support seat 3.

The fixed end of the telescopic driving mechanism is detachably arranged on the first supporting seat 3, and the telescopic end of the telescopic driving mechanism is detachably arranged on the second supporting seat 4.

In the embodiment of the application, the first section 1 is installed because the first supporting seat 3 is detachably arranged on the first section 1, the first section 1 provides supporting force for the first supporting seat 3, the counter-force supporting frame 5 is detachably arranged on the second section 2, the second supporting seat 4 is fixedly arranged on the counter-force supporting frame 5, the second supporting seat 4 is arranged right above the first supporting seat 3, the telescopic driving mechanism extends and retracts vertically, two ends of the telescopic driving mechanism are respectively connected with the first supporting seat 3 and the second supporting seat 4, the telescopic driving mechanism can be arranged between the first supporting seat 3 and the second supporting seat 4, the first supporting seat 3 supports the fixed end of the telescopic driving mechanism, the telescopic driving mechanism is started, the driving end of the telescopic driving mechanism can be controlled to act, the driving end of the telescopic driving mechanism presses the counter-force supporting frame 5 through the second supporting seat 4, the reaction support frame 5 drives the second section 2 to move, so that two ports of the steel box girder cable-stayed bridge can be adjusted, two steel box girder sections are aligned, the operation is convenient, and manpower and material resources are saved.

Wherein, the telescopic driving mechanism can be a hydraulic jack. In this embodiment, the hydraulic jack lift may be 50 tons.

Of course, the number of the hydraulic jacks may be one or more, and the embodiment of the present invention is not limited thereto.

Specifically, a first web 7 is fixedly arranged on the first segment 1, and the first supporting seat 3 is fixedly arranged on the first web 7, so as to realize the fixed arrangement of the supporting seat 3 on the first segment 1.

Specifically, the first support seat 3 comprises: a first support plate 3-1.

The first support plate 3-1 is fixedly connected to the first web 7. In the embodiment, the first supporting plate 3-1 can be fixedly connected with the first web 7 by welding, so that the connection firmness is ensured.

Both sides of the first segment 1 are fixedly provided with horse plates 9. In the present embodiment, the two sides of the first segment 1 can be fixed by welding to form the horse plate 9, so as to ensure the connection firmness. The horse plate 9 is fixedly connected to the first segment 7 by means of a first stiffening plate 10. In the present embodiment, the first reinforcing plate 10 is welded to the horse plate 9, and the first reinforcing plate 10 is welded to the first segment 7, so that the connection is secured.

The first reinforcing plate 10 secures the supporting strength of the horse board 9.

The first supporting plate 3-1 is fixedly connected with the web 7 and the horse board 9 through a plurality of second reinforcing plates 11. In the embodiment, the second reinforcing plates 11 are welded with the first supporting plate 3-1, and the second reinforcing plates 11 are welded with the web 7 and the horse board 9, so that the connection firmness is ensured.

The first supporting plate 3-1 is supported through the first web 7 and the horse board 9, so that the supporting strength of the first supporting plate 3-1 is ensured, and the supporting strength of the first supporting plate 3-1 is further ensured through the plurality of second reinforcing plates 11.

Specifically, a second web 12 is fixedly arranged on the second segment 2; the reaction force support frame 5 is fixedly arranged on the second web 12.

The reaction force support frame 5 includes: a first connecting frame 5-1 and a second connecting frame 5-2.

The first connecting frame 5-1 is detachably connected to the second web 12.

The second connecting frame 5-2 is fixedly connected with the first connecting frame 5-1, and the second supporting seat 4 is fixedly arranged on the end face, facing the first connecting frame 3, of the second connecting frame 5-2.

The first connecting frame 5-1 is perpendicular to the second connecting frame 5-2, so that the second supporting seat 4 can be aligned with the first supporting seat 3.

The first link 5-1 and the second link 5-2 each include: a second supporting plate 5-11 and two side plates 5-12.

The two side plates 5-12 are fixedly arranged at two sides of the second supporting plate 5-11. In the present embodiment, the two side plates 5-12 can be fixed on the two sides of the second supporting plate 5-11 by welding, so as to ensure the connection reliability. The two side plates 5-12 are spaced apart to form a recess.

The two side plates 5-12 are fixedly connected with the second supporting plates 5-11 through a plurality of third reinforcing plates 6. In the embodiment, the two side plates 5-12 are welded with the third reinforcing plates 6 and the third reinforcing plates 6 are welded with the second supporting plates 5-11, so that the connection firmness is ensured.

The structural strength of the two side plates 5-12 and the second support plates 5-11 is ensured by the third reinforcement plate 6.

The first link frame 5-1 further includes: a plurality of connecting pieces.

A second web 12 is arranged between the two side plates 5-12. The second web 12 can be embedded into the groove formed by the two side plates 5-12 of the first connecting frame 5-1, so that the stability of the connection is ensured.

A plurality of first through holes are formed in the second supporting plate 5-11 of the first connecting frame 5-1, a plurality of second through holes are formed in the second web plate 12, and the plurality of first through holes correspond to the plurality of second through holes one to one; the connecting pieces are in one-to-one correspondence with the first through holes and penetrate through the corresponding first through holes to be connected with the second through holes, so that the first connecting frame 5-1 and the second web plate 12 can be conveniently disassembled and assembled.

The connector may be a bolt.

A fourth reinforcing plate 8 is fixedly arranged between the two side plates 5-21 of the second connecting frame 5-2. In the embodiment, the fourth reinforcing plate 8 can be fixedly arranged between the two side plates 5-21 of the second connecting frame 5-2 by welding, so that the connection firmness is ensured.

The supporting strength of the two side plates 5-21 of the second link frame 5-2 is secured by the fourth reinforcing plate 8.

Specifically, the second support seat 4 includes: a third support plate 4-1.

The third supporting plate 4-1 is fixedly connected with the end surface of the second connecting frame 5-2 facing the first supporting seat 1. In the present embodiment, the third supporting plate 4-1 can be fixedly connected to the end surface of the second connecting frame 5-2 facing the first supporting seat 1 by welding, so as to ensure the connection firmness.

The invention further provides a steel box girder cable-stayed bridge, which adopts the port jacking adjusting device in the embodiment, the specific structure of the port jacking adjusting device refers to the embodiment, and the port jacking adjusting device adopts all the technical schemes of all the embodiments, so that the steel box girder cable-stayed bridge at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

In order to more clearly describe the embodiments of the present invention, the following description is made in terms of the method of using the embodiments of the present invention.

A horse board 9 is fixedly arranged on two sides of the installed first section 1, the horse board 9 is fixedly connected with the first section 7 through a first reinforcing board 10, and the first reinforcing board 10 ensures the supporting strength of the horse board 9. The first supporting plate 3-1 is fixedly connected with the first web 7 and the horse plate 9 through the second reinforcing plates 11, the first supporting plate 3-1 is supported through the web 7 and the horse plate 9, the supporting strength of the first supporting plate 3-1 is guaranteed, and the supporting strength of the first supporting plate 3-1 is further guaranteed through the second reinforcing plates 11.

The bolts penetrate through the corresponding first through holes to be connected with the second through holes, so that the second supporting plate 5-11 of the first connecting frame 5-1 is connected with the second web plate 12, and meanwhile, the second web plate 12 can be embedded into a groove formed by the two side plates 5-12 of the first connecting frame 5-1. And fixedly connecting the third supporting plate 4-1 with the end surface of the second connecting frame 5-2 facing the first supporting seat 1.

The hydraulic jack is arranged between a first supporting plate 3-1 and a third supporting plate 4-1, the first supporting plate 3-1 supports the fixed end of the hydraulic jack, the hydraulic jack is started, the driving end of the hydraulic jack acts, the driving end of the hydraulic jack applies pressure to a first connecting frame 5-1 of a counter-force supporting frame 5 through the third supporting plate 4-1, the first connecting frame 5-1 applies force to a second connecting frame 5-2, the second connecting frame 5-2 drives a second section 2 to act, two ports of the steel box girder cable-stayed bridge can be adjusted, and the first section 1 is aligned with the second section 2.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.