Self-adaptive variable cross-section steel box girder pushing construction device

Abstract

The utility model provides a self-adaptive variable cross-section steel box girder incremental launching construction device which comprises a pier steel plate box girder and an adjusting assembly used for adjusting the direction of incremental launching construction of the steel plate box girder, a supporting frame is arranged on one side of a pier, a bearing table is fixedly installed on the upper surface of the supporting frame, and the adjusting assembly is located at one end of the upper surface of the bearing table. One end of the upper surface of the adjusting assembly is connected with a walking type pushing machine. Through the design of the adjusting assembly, the walking type pushing machine, the intelligent controller and the tilt angle sensor, the position of the deviated steel plate box girder can be corrected, so that the pushing force and direction can be adjusted according to the change of the cross section of the steel plate box girder, and the stability and safety in the construction process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel box girder push construction technical field, concretely relates to a kind of self-adapting variable cross-section steel box girder push construction device. BACKGROUND

[0002] Steel box girder is also called steel plate box girder, and it is a common structural form of long-span bridge. It is usually used in large-span bridges. Because its appearance looks like a box, it is called steel box girder. With the continuous development of modern bridge engineering construction, the demand for long-span bridges and complex terrain bridges is increasing. Steel box girder has been widely used in many bridge construction projects due to its advantages of lighter weight, high strength, and fast construction speed. However, in actual bridge engineering, the construction of variable cross-section steel box girder often encounters problems such as the adjustment of pushing force and direction according to the change of steel box girder cross-section, which affects the stability and safety during construction. SUMMARY

[0003] The utility model provides a kind of self-adapting variable cross-section steel box girder push construction device to solve the problem proposed in background art.

[0004] The specific technical solutions are as follows:

[0005] A kind of self-adapting variable cross-section steel box girder push construction device, comprising: a pier steel plate box girder and an adjusting assembly for adjusting the direction of steel plate box girder push construction, the one side of the pier is provided with a support frame, the upper surface of the support frame is fixedly installed with a bearing table, the adjusting assembly is located at one end of the upper surface of the bearing table, the upper surface of the adjusting assembly is connected with a walking pusher, and the lower surface of the steel plate box girder is attached to one end of the upper surface of the pier.

[0006] As a preferred embodiment of the utility model, the one side of the pier is provided with an intelligent controller, and the two ends and the other side of the steel plate box girder are provided with inclination sensors. The two groups of inclination sensors are located at the front and rear ends of the steel plate box girder. The intelligent controller is connected with the inclination sensors through external signal lines. The intelligent controller is connected with the power drive unit of the walking pusher through external electrical control lines.

[0007] As a preferred embodiment of the utility model, rubber blocks are bonded to the upper surface of the pushing part of the walking pusher. The rubber blocks are made of ethylene-propylene-diene rubber.

[0008] As a preferred embodiment of the utility model, reinforcing plates are fixedly installed on both sides of the bearing table. The reinforcing plates are fixedly installed with cross plates at one end. The cross plates are provided with first hydraulic push rods at the upper end.

[0009] As a preferred scheme of the utility model, the first hydraulic push rod extension end is fixedly connected with a limiting block, and the limiting block is located at one side of the steel plate box beam.

[0010] As a preferred scheme of the utility model, the adjusting assembly comprises guide rails, the guide rails are located at both ends of the upper surface of the bearing table, one end of the upper surface of the bearing table is provided with an adjusting groove, and the adjusting groove is located between the two groups of guide rails.

[0011] As a preferred scheme of the utility model, a plurality of groups of sliding blocks are slidably installed in the two groups of guide rails, one end of the upper surfaces of the plurality of groups of sliding blocks is connected to one end of the lower surface of the walking type pushing machine, and a linkage plate is installed between two groups of the plurality of groups of sliding blocks.

[0012] As a preferred scheme of the utility model, the linkage plate is in the shape of T, and the middle section of the linkage plate is located in the adjusting groove.

[0013] As a preferred scheme of the utility model, a second hydraulic push rod is arranged at one end of the inner wall of the adjusting groove, and the extension end of the second hydraulic push rod is connected to one side of the linkage plate.

[0014] As a preferred scheme of the utility model, the intelligent controller is connected with the second hydraulic push rod through an external electrical control circuit, and the model numbers of the inclination sensor and the intelligent controller are SCA1000-T and Siemens S7-1200 respectively.

[0015] The utility model has the following beneficial effects:

[0016] 1. The self-adaptive variable cross-section steel box beam pushing construction device has the following beneficial effects: when the cross-section of the steel plate box beam changes, the overall posture of the steel plate box beam is affected, the posture change caused by the cross-section change can be monitored through the inclination sensor, the cross-section change of the steel plate box beam affects the pushing direction, when the steel plate box beam deviates and needs to be corrected, the signal is transmitted to the intelligent controller, the intelligent controller adjusts the pushing force of the walking type pushing machine, then the intelligent controller controls the position movement of the adjusting assembly to the walking type pushing machine, so that the walking type pushing machine moves in the opposite direction of the deviation of the steel plate box beam, since the walking type pushing machine is always attached to the lower surface of the steel plate box beam during the pushing process, when the position of the walking type pushing machine changes, the direction and position of the force applied to the steel plate box beam also change, so that the position of the deviated steel plate box beam is corrected, so that the pushing force and direction can be adjusted according to the cross-section change of the steel plate box beam, and the stability and safety during construction are ensured.

[0017] 2. The self-adaptive variable cross-section steel box girder pushing construction device, through bonding rubber blocks on the pushing part of the walking pushing machine, the rubber blocks will fill the recessed part of the lower surface of the steel plate box girder or be extruded and deformed by the protruding part under the action of the pushing pressure, so that the pushing part of the walking pushing machine and the lower surface of the steel box girder can maintain a relatively close and flat contact state, avoiding the influence caused by uneven pushing force, and then the transverse plate and the first hydraulic push rod provided on the two sides of the bearing table can adjust the position of the limiting block connected to one end of the first hydraulic push rod according to actual needs, limit the lateral movement of the steel plate box girder, and keep it within the predetermined pushing path range, avoiding too large direction deviation distance caused by cross-section change.

[0018] 3. The self-adaptive variable cross-section steel box girder pushing construction device, through the design of the second hydraulic push rod, the linkage plate and the guide rail, when the steel plate box girder has attitude deviation due to cross-section change, the inclination sensor monitors the change and transmits the signal to the intelligent controller, and then the intelligent controller analyzes and processes the signal to control the second hydraulic push rod, so that the extension end of the second hydraulic push rod pushes the linkage plate, and the linkage plate drives the sliders connected at both ends to slide in the guide rail, thereby driving the walking pushing machine to move to the appropriate position, correcting the deviation direction of the steel plate box girder, making the steel plate box girder return to the correct pushing direction and attitude, and avoiding the influence on the construction progress caused by the deviation of the pushing path from the predetermined track due to the attitude deviation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The overall structure diagram provided by the embodiment of the utility model Figure One ;

[0020] Figure 2 The structure diagram of the intelligent controller provided by the embodiment of the utility model Figure Two ;

[0021] Figure 3 The structure diagram of the rubber block provided by the embodiment of the utility model Figure Three ;

[0022] Figure 4 The structure diagram of the adjusting assembly provided by the embodiment of the utility model Figure Four .

[0023] IN THE DRAWINGS:

[0024] 1, pier; 101, support frame; 102, bearing table; 103, steel plate box girder; 2, inclination sensor; 3, intelligent controller; 4, walking jacking machine; 401, rubber block; 5, reinforcing plate; 501, horizontal plate; 502, first hydraulic push rod; 503, limiting block; 6, adjusting assembly; 601, guide rail; 602, sliding block; 603, adjusting groove; 604, linkage plate; 605, second hydraulic push rod. DETAILED DESCRIPTION

[0025] The technical solutions of the utility model are further illustrated below in combination with the drawings and through specific embodiments.

[0026] Among them, the drawings are only used for example explanation, and the representation is only a schematic diagram, not a real object drawing, and cannot be understood as a limitation on the patent; in order to better illustrate the embodiments of the utility model, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings can be omitted.

[0027] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, the positional relationship described in the drawings is only used for example explanation, and cannot be understood as a limitation on the patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0028] In the description of the utility model, unless otherwise explicitly specified and limited, if the connection relationship between the components appears, the term should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0029] Embodiment 1

[0030] The self-adaptive variable cross-section steel box girder jacking construction device provided in the embodiment, like Figures 1-4As shown, the device comprises: a steel plate box girder 103 of a pier 1 and an adjusting assembly 6 for adjusting the direction of the steel plate box girder 103 during incremental launching construction, a support frame 101 is arranged on one side of the pier 1, a bearing table 102 is fixedly installed on the upper surface of the support frame 101, the adjusting assembly 6 is located at one end of the upper surface of the bearing table 102, a walking incremental launching machine 4 is connected to one end of the upper surface of the adjusting assembly 6, and the lower surface of the steel plate box girder 103 is attached to one end of the upper surface of the pier 1. An intelligent controller 3 is arranged on one side of the pier 1, and an inclination sensor 2 is arranged at both ends of the steel plate box girder 103 and the other side, wherein two groups of inclination sensors 2 are arranged at the front and rear ends of the steel plate box girder 103, the intelligent controller 3 is connected with the inclination sensor 2 through external signal lines, and the intelligent controller 3 is connected with the power driving unit of the walking incremental launching machine 4 through external electrical control lines.

[0031] Through the design of the adjusting assembly 6, the walking incremental launching machine 4, the intelligent controller 3 and the inclination sensor 2, when the cross section of the steel plate box girder 103 changes, the overall posture of the steel plate box girder 103 will be affected, the inclination sensor 2 arranged can monitor the change of the posture caused by the cross section change, the cross section change of the steel plate box girder 103 will affect the incremental launching direction, when the steel plate box girder 103 deviates and needs to be corrected, the signal is transmitted to the intelligent controller 3, the intelligent controller 3 adjusts the incremental launching force of the walking incremental launching machine 4, then the intelligent controller 3 controls the position movement of the adjusting assembly 6 to the walking incremental launching machine 4, so that the walking incremental launching machine 4 moves in the opposite direction of the deviation of the steel plate box girder 103, since the walking incremental launching machine 4 is always attached to the lower surface of the steel plate box girder 103 during the incremental launching process, then the position change of the walking incremental launching machine 4 will change the direction and position of the force applied to the steel plate box girder 103, thereby correcting the position of the deviated steel plate box girder 103, the incremental launching force and direction can be adjusted according to the cross section change of the steel plate box girder 103, to ensure the stability and safety during construction.

[0032] The walking incremental launching machine 4 is a mature technology, and will not be described in detail here.

[0033] Embodiment 2

[0034] The adaptive variable cross-section steel box girder incremental launching construction device provided in the embodiment, as shown in Figures 2-3 The upper surface of the incremental launching part in the walking incremental launching machine 4 is bonded with a rubber block 401, and the rubber block 401 is made of ethylene-propylene-diene rubber. Reinforcing plates 5 are fixedly installed on both sides of the bearing table 102, one end of each reinforcing plate 5 is fixedly installed with a horizontal plate 501, and the upper end of the horizontal plate 501 is provided with a first hydraulic push rod 502. The extension end of the first hydraulic push rod 502 is fixedly connected with a limiting block 503, and the limiting block 503 is located on one side of the steel plate box girder 103.

[0035] By bonding the rubber block 401 on the pushing part of the walking pusher 4, the rubber block 401 will fill the concave part of the lower surface of the steel plate box girder 103 or be extruded and deformed by the protruding part under the action of the pushing pressure, so that the pushing part of the walking pusher 4 and the lower surface of the steel box girder can maintain a relatively close and flat contact state, avoiding the influence of uneven pushing force. Then, the lateral movement of the steel plate box girder 103 can be limited to keep it within the predetermined pushing path range by adjusting the position of the limiting block 503 connected to one end of the first hydraulic push rod 502 through the horizontal plate 501 and the first hydraulic push rod 502 arranged on both sides of the bearing table 102 according to actual needs, so as to avoid excessive deviation distance due to cross-section change.

[0036] Embodiment 3

[0037] The adaptive variable cross-section steel box girder pushing construction device provided in the embodiment, as shown in Figure 4 The adjusting assembly 6 includes guide rails 601 located at both ends of the upper surface of the bearing table 102, and an adjusting groove 603 is arranged at one end of the upper surface of the bearing table 102 and located between the two guide rails 601. A plurality of sliding blocks 602 are slidingly installed in the two guide rails 601, one end of the upper surface of each sliding block 602 is connected to one end of the lower surface of the walking pusher 4, and a linkage plate 604 is installed between two groups of sliding blocks 602. The linkage plate 604 is in the shape of a T, and the middle segment of the linkage plate 604 is located in the adjusting groove 603. A second hydraulic push rod 605 is arranged at one end of the inner wall of the adjusting groove 603 and connected to one side of the linkage plate 604 at the extended end. The intelligent controller 3 is connected to the second hydraulic push rod 605 through an external electrical control circuit, and the inclination sensor 2 and the intelligent controller 3 are respectively SCA1000-T and Siemens S7-1200.

[0038] Through the design of the second hydraulic push rod 605, the linkage plate 604 and the guide rail 601, when the steel plate box girder 103 deviates in posture due to cross-section change, the inclination sensor 2 detects the change and transmits the signal to the intelligent controller 3. Then, the intelligent controller 3 analyzes and processes the signal to control the second hydraulic push rod 605, so that the extended end of the second hydraulic push rod 605 pushes the linkage plate 604, and the linkage plate 604 drives the sliding blocks 602 connected at both ends to slide in the guide rail 601, thereby driving the walking pusher 4 to move to the appropriate position to correct the deviation direction of the steel plate box girder 103, so that the steel plate box girder 103 returns to the correct pushing direction and posture, avoiding the influence of the deviation of the pushing path from the predetermined track due to the deviation of the posture on the construction progress.

[0039] In conclusion, the self-adaptive variable cross-section steel box girder pushing construction device has the following advantages: during the construction of the steel box girder, the pushing force and the pushing direction can be adjusted according to the cross-section change of the steel box girder, so that the pushing direction deviation caused by the cross-section change is avoided, and the stability and safety during the construction of the steel box girder are improved.

[0040] In use, when the cross-section of the steel plate box girder 103 changes, the overall posture of the steel plate box girder 103 will be affected, and the posture change caused by the cross-section change can be monitored through the inclination sensor 2, the cross-section change of the steel plate box girder 103 will affect the pushing direction, when the steel plate box girder 103 deviates and needs to be corrected, then the intelligent controller 3 receives the signal, the intelligent controller 3 adjusts the pushing force of the walking type pushing machine 4, so as to prevent causing a greater impact, then the intelligent controller 3 controls the second hydraulic push rod 605, so that the second hydraulic push rod 605 extends and pushes the linkage plate 604, the linkage plate 604 drives the two end-connected sliders 602 to slide in the guide rail 601, since the walking type pushing machine 4 is always attached to the lower surface of the steel plate box girder 103 during the pushing process, then when the position of the walking type pushing machine 4 changes, the direction and position of the force applied to the steel plate box girder 103 will also change, so as to correct the position of the deviated steel plate box girder 103, and ensure the stability of the construction process.

[0041] The above is only the preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious change made according to the content of the present application should be included in the protection scope of the present application.

Claims

1. A self-adapting variable cross-section steel box girder pushing construction device, characterized in that, Include: The pier (1) steel plate box girder (103) and the adjusting assembly (6) for the steel plate box girder (103) incremental construction adjustment direction, one side of the pier (1) is provided with a support frame (101), the upper surface of the support frame (101) is fixedly installed with a bearing table (102), the adjusting assembly (6) is located at one end of the upper surface of the bearing table (102), the upper surface of the adjusting assembly (6) is connected with a walking incremental machine (4), and the lower surface of the steel plate box girder (103) is attached to one end of the upper surface of the pier (1).

2. The self-adapting variable cross-section steel box girder pushing construction device according to claim 1, characterized in that, One side of the pier (1) is provided with an intelligent controller (3), both ends and the other side of the steel plate box girder (103) are provided with an inclination sensor (2), two groups of the inclination sensor (2) are located at the front and rear ends of the steel plate box girder (103), the intelligent controller (3) is connected with the inclination sensor (2) through external signal lines, and the intelligent controller (3) is connected with the power drive unit of the walking incremental machine (4) through external electrical control lines.

3. The self-adapting variable cross-section steel box girder incremental launching construction device according to claim 1, characterized in that, The upper surface of the incremental part in the walking incremental machine (4) is bonded with a rubber block (401), and the rubber block (401) is made of ethylene-propylene rubber.

4. The self-adapting variable cross-section steel box girder incremental launching construction device according to claim 1, characterized in that, The bearing table (102) is fixedly installed with a reinforcing plate (5) on both sides, one end of the reinforcing plate (5) is fixedly installed with a horizontal plate (501), and the upper end of the horizontal plate (501) is provided with a first hydraulic push rod (502).

5. The self-adapting variable cross-section steel box girder pushing construction device according to claim 4, characterized in that, The first hydraulic push rod (502) is fixedly connected with a limiting block (503) at the extension end, and the limiting block (503) is located on one side of the steel plate box girder (103).

6. The self-adapting variable cross-section steel box girder incremental launching construction device according to claim 1, characterized in that, The adjusting assembly (6) comprises guide rails (601), the guide rails (601) are located at both ends of the upper surface of the bearing table (102), one end of the upper surface of the bearing table (102) is provided with an adjusting groove (603), and the adjusting groove (603) is located between the two guide rails (601).

7. The adaptive variable cross-section steel box girder pushing construction device according to claim 6, characterized in that, A plurality of sliding blocks (602) are slidably installed in the two guide rails (601), one end of the upper surface of the plurality of sliding blocks (602) is connected to one end of the lower surface of the walking incremental machine (4), and two groups of the plurality of sliding blocks (602) are installed with a linkage plate (604).

8. The self-adapting variable cross-section steel box girder pushing construction device according to claim 7, characterized in that, The linkage plate (604) is T-shaped, and the middle segment of the linkage plate (604) is located in the adjusting groove (603).

9. The adaptive variable cross-section steel box girder incremental launching construction device according to claim 8, characterized in that, The inner wall of the adjusting groove (603) is provided with a second hydraulic push rod (605) at one end, and the extension end of the second hydraulic push rod (605) is connected to one side of the linkage plate (604).

10. The self-adapting variable cross-section steel box girder pushing construction device according to claim 2, characterized in that, The intelligent controller (3) is connected with the second hydraulic push rod (605) through external electrical control lines.

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