Multi-dimensional auxiliary positioning system of girder transporting ship for transporting steel box girders

Abstract

The utility model belongs to the technical field of beam transporting ship positioning, and discloses a beam transporting ship multi-dimensional auxiliary positioning system for transporting steel box girders, the steel box girders are arranged on a beam transporting ship, the beam transporting ship multi-dimensional auxiliary positioning system comprises a winch, a tugboat and an intelligent positioning device for monitoring the positions of the steel box girders in real time, and ship anchors for positioning after position adjustment are arranged on the bow and the stern of the beam transporting ship. The winches are symmetrically installed on the bow and the stern of the girder transporting ship, cables are connected with bridge pier columns on the corresponding sides, and therefore the girder transporting ship can be preliminarily adjusted in the bridge direction through cable winding and unwinding according to steel box girder monitoring data, and the tugboat is connected with a body of the girder transporting ship, so that the girder transporting ship can be preliminarily adjusted in the transverse bridge direction according to the steel box girder monitoring data. The intelligent positioning device comprises a Beidou / GPS dual-mode positioning instrument and a total station used for establishing three-dimensional coordinate monitoring. The system has the advantages of multi-dimensional auxiliary accurate positioning, novel conception, improvement of engineering quality, guarantee of construction safety and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of beam ship positioning, and particularly relates to a multi-dimensional auxiliary positioning system for a beam ship for transporting steel box girders. BACKGROUND

[0002] Generally, the steel box girder is installed by adopting a segmented processing and installation process method, and the construction procedure is complicated, the construction time is long, the construction progress is greatly affected, the construction site construction requirement is high, the equipment investment is large, and the construction tool has certain limitations. If a large-span steel box girder whole-box lifting process method is adopted, the position of the ten-thousand-ton transportation steel box girder beam ship must be finely adjusted, and the center line of the steel box girder must be basically coincided with the center line of the bridge, otherwise the steel box girder is prone to pendulum effect due to oscillation when being hoisted, and there is a great safety hazard. At present, the domestic precision positioning for large-span wide-width hundred-meter steel box girders cannot be realized, and the construction demand of complex bridges cannot be met. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims to provide a multi-dimensional auxiliary positioning system for a beam ship for transporting steel box girders, which has high construction efficiency, finely adjusts the position of the steel box girder before lifting, and solves the problem that the whole lifting installation of the large-span wide-width hundred-meter steel box girder cannot finely adjust the position of the steel box girder, so that the steel box girder is prone to pendulum effect due to oscillation when being hoisted, and there is a great safety hazard.

[0004] To this end, the utility model adopts the technical scheme that a multi-dimensional auxiliary positioning system for a beam ship for transporting steel box girders, the steel box girder is arranged on the beam ship, and the system comprises a winch, a tugboat and an intelligent positioning device for monitoring the position of the steel box girder in real time. The beam ship bow and stern are each provided with a ship anchor for position adjustment and positioning. The winch is symmetrically installed on the beam ship bow and stern, and the cable is connected with the corresponding side bridge pier column, so that the beam ship can be preliminarily adjusted in the bridge direction through the cable winding and unwinding according to the steel box girder monitoring data. The tugboat is connected with the beam ship body, so that the beam ship can be preliminarily adjusted in the transverse direction of the bridge according to the steel box girder monitoring data. The intelligent positioning device comprises a Beidou / GPS dual-mode positioning instrument and a total station instrument for establishing three-dimensional coordinate monitoring, and can be adjusted at the centimeter level through the ship anchor and the winch winding and unwinding after the beam ship bow and stern are preliminarily positioned according to the steel box girder monitoring data.

[0005] As a preferred embodiment of the above scheme, the ship anchor is thrown outwards in the shape of an "eight", has large holding force, makes the ship drift small, has strong stability, is suitable for complex environments such as strong wind attack, rapid and turbulent water flow, poor bottom quality or anti-typhoon anchoring, etc.

[0006] Further preferably, the tugboat adopts two tugboats and is connected to push and pull the beam ship from the upstream and downstream sides of the beam ship bow, so that the water fluctuation of the ship bow region is effectively resisted, the ship bow is accurately adjusted, and the stability during adjustment is ensured.

[0007] Further preferably, the tugboat is two and is connected to the upstream and downstream sides of the beam-transporting ship to pull and drag, one push and one pull effectively resist the water fluctuation of the water surface fluctuation area, and ensure the stability of the ship body.

[0008] Further preferably, the tugboat is two and is connected to the upstream and downstream sides of the beam-transporting ship to pull and drag, one push and one pull effectively resist the water fluctuation of the water surface fluctuation area, and ensure the stability of the ship body.

[0009] Further preferably, the Beidou / GPS dual-mode positioner is uniformly distributed along the center line of the steel box girder, the total station is correspondingly built on the two sides of the road, and the intelligent positioning device is further used for position error adjustment in centimeter level after positioning, so that the position of the beam-transporting ship can be adjusted by monitoring the position of the steel box girder, the anchor chain and the cable of the winch, and the position error of the steel box girder is controlled within the centimeter level.

[0010] The real-time feedback closed-loop control technology of Beidou / GPS dual-mode positioning and total station three-dimensional coordinate monitoring fusion is adopted, the traditional water positioning precision bottleneck is broken through, the centimeter-level dynamic adjustment capability of the 10,000-ton ship horizontal posture and the 100-meter steel box girder is realized under the complex hydrological conditions of the river, and the longitudinal and transverse positioning errors are controlled within centimeters, so that a new technical scheme is provided for the water hoisting of the long-span bridge steel box girder.

[0011] Further preferably, the tugboat is 3000-4000 horsepower, which ensures the pulling force of the bow and stern of the beam-transporting ship, and the cable of the winch is connected with the corresponding side pier column steel cofferdam, so that the cost and time of additionally creating the anchor point for connecting the cable of the winch are effectively saved by means of the steel cofferdam of the pier column.

[0012] The beneficial effects of the utility model are as follows:

[0013] (1) Compared with the current steel box girder whole lifting installation for large-span wide 100-meter steel box girder, the position of the beam-transporting ship cannot be finely adjusted, the scheme adopts the multi-dimensional auxiliary positioning means of tugboat cooperative control, self-provided anchor system and winch cable retraction linkage, realizes the accurate positioning of the bow and stern of the beam-transporting ship, and through field test, it is found that the bow and stern can be adjusted in meter level in the transverse and longitudinal directions of the bridge, and finally the position error of the beam-transporting ship can be controlled within 10cm, the traditional water positioning precision bottleneck is broken through, the centimeter-level dynamic adjustment capability of the 10,000-ton ship horizontal posture and the 100-meter steel box girder is realized under the complex hydrological conditions of the river, and the new technical scheme is provided for the water hoisting of the long-span bridge steel box girder.

[0014] (2) the ship body of the beam-transporting ship is precisely positioned in the transverse bridge direction and the longitudinal bridge direction by using the tugboat traction and the winch cable retraction and release, and is positioned by throwing anchor after the positioning, so that the center line of the steel box beam is basically coincided with the center line of the bridge, the pendulum effect caused by the oscillation of the steel box beam when the bridge deck crane hoists is effectively avoided, the safety hidden danger is eliminated, and the safety of the workers and the stability of the equipment are ensured.

[0015] In conclusion, the utility model has the advantages of multi-dimensional auxiliary precise positioning, novel concept, improved engineering quality, ensured construction safety and the like. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a structural schematic view of the tugboat located at the bow of the beam-transporting ship.

[0017] Figure 2 Fig. 2 is a structural schematic view of the tugboat located at the stern of the beam-transporting ship.

[0018] Figure 3 Fig. 3 is a structural schematic view of the tugboat located at the ship body of the beam-transporting ship. DETAILED DESCRIPTION

[0019] The utility model will be further described below by combining with the embodiments and the drawings:

[0020] Combined with the drawings, Figure 1 — Figure 3 As shown in the drawings, a multi-dimensional auxiliary positioning system of a beam-transporting ship for transporting a steel box beam, the steel box beam 3 is arranged on the beam-transporting ship 1, which is composed of a winch 4, a tugboat 2 and an intelligent positioning device for monitoring the position of the steel box beam 3 in real time.

[0021] The beam-transporting ship 1 is provided with a ship anchor 5 for position adjustment and positioning at the bow and the stern.

[0022] The beam-transporting ship 1 is provided with a ship anchor 5 for position adjustment and positioning at the bow and the stern.

[0023] The tugboat 2 is connected with the ship body of the beam-transporting ship 1, so that the beam-transporting ship 1 can be preliminarily adjusted in the transverse bridge direction according to the monitoring data of the steel box beam.

[0024] The tugboat 2 is connected with the ship body of the beam-transporting ship 1, so that the beam-transporting ship 1 can be preliminarily adjusted in the transverse bridge direction according to the monitoring data of the steel box beam.

[0025] The tugboat 2 is connected with the ship body of the beam-transporting ship 1, so that the beam-transporting ship 1 can be preliminarily adjusted in the transverse bridge direction according to the monitoring data of the steel box beam.

[0026] The tugboat 2 is connected with the ship body of the beam-transporting ship 1, so that the beam-transporting ship 1 can be preliminarily adjusted in the transverse bridge direction according to the monitoring data of the steel box beam.

[0027] The intelligent positioning device is composed of a Beidou / GPS dual-mode positioning instrument and a total station instrument for establishing three-dimensional coordinate monitoring, and can be adjusted at a centimeter level through the ship anchor 5 and the winch 4 after the initial positioning of the bow and stern of the beam-transporting ship 1.

[0028] The Beidou / GPS dual-mode positioning instrument is evenly distributed along the center line of the steel box girder 3, and the total station instruments are correspondingly built on the sidewalks on both sides of the river.

[0029] The tugboat 2 preferably has a power of 3000-4000 horsepower.

[0030] The winches 4 are symmetrically installed on the bow and stern of the beam-transporting ship 1, and the cables are connected with the corresponding side bridge pier columns, so that the beam-transporting ship 1 can be preliminarily adjusted in the bridge direction according to the steel box girder monitoring data through the cable retraction and release.

[0031] The cable of the winch 4 is connected with the corresponding side pier steel cofferdam.

[0032] The beam-transporting ship transporting the steel box girder first drives to the side of the corresponding bridge pier at the stern, then the cable of the winch at the stern of the beam-transporting ship is connected with the corresponding side pier column, and the ship is anchored for positioning at the stern.

[0033] The tugboat is first connected with the bow of the beam-transporting ship, and the beam-transporting ship is rotated to realize the horizontal ship.

[0034] The cable of the winch at the bow of the beam-transporting ship is connected with the corresponding side pier column, and the beam-transporting ship is preliminarily adjusted in position through the traction of the tugboat and the retraction and release of the cable of the winch. When the adjustment is to the designed position, that is, the vertical projection distance between the bow endpoint of the beam-transporting ship on the center line of the beam-transporting ship and the same plane of the bridge center line is within 1m, the beam-transporting ship is anchored for positioning at the bow.

[0035] The anchor for the initial positioning at the stern is retracted, and the beam-transporting ship is preliminarily adjusted in position through the traction of the tugboat and the retraction and release of the cable of the winch. When the adjustment is to the designed position, that is, the vertical projection distance between the stern endpoint of the beam-transporting ship on the center line of the beam-transporting ship and the same plane of the bridge center line is within 1m, the beam-transporting ship is anchored for positioning at the stern.

[0036] The tugboat is transferred to the side of the beam-transporting ship body in the water surface fluctuation area for traction to maintain the stability of the ship body, and then the beam-transporting ship is further adjusted at a centimeter level through the ship anchor 5 and the winch 4.

[0037] Finally, the hoisting ropes of the steel box girder bridge crane installed on the bridge deck are connected with the hoisting points at both ends of the steel box girder, and the hoisting is started after adjusting the progress and load of each hoisting point.

Claims

1. A multi-dimensional auxiliary positioning system for a beam transport vessel for transporting steel box girders, wherein the steel box girder (3) is mounted on a beam transport vessel (1), characterized in that: The system includes a winch (4), a tugboat (2), and an intelligent positioning device for real-time monitoring of the position of the steel box girder (3). The beam transport vessel (1) is equipped with anchors (5) at both the bow and stern for positioning after position adjustment. The winch (4) is symmetrically installed on the bow and stern of the beam transport vessel (1), and the cable is connected to the corresponding side bridge pier. Thus, the beam transport vessel (1) can be initially adjusted in the longitudinal direction of the bridge by raising and lowering the cable according to the steel box girder monitoring data. The tugboat (2) is connected to the hull of the beam transport vessel (1), thus, the beam transport vessel (1) can be initially adjusted in the transverse direction of the bridge according to the steel box girder monitoring data. The intelligent positioning device includes a Beidou / GPS dual-mode positioning instrument and a total station for establishing three-dimensional coordinate monitoring. After the beam transport vessel (1) is initially positioned at the bow and stern, it can be adjusted at the centimeter level by raising and lowering the anchor (5) and the winch (4) according to the steel box girder monitoring data.

2. The multi-dimensional auxiliary positioning system for a beam transport vessel for transporting steel box girders according to claim 1, characterized in that: The anchor (5) is anchored outward in a figure-eight shape.

3. The multi-dimensional auxiliary positioning system for a beam transport vessel for transporting steel box girders according to claim 1, characterized in that: The tugboats (2) are two vessels connected upstream and downstream of the bow of the beam transport vessel (1) for pushing and pulling.

4. The multi-dimensional auxiliary positioning system for a beam transport vessel for transporting steel box girders according to claim 1, characterized in that: The tugboat (2) consists of two vessels, which are connected on the upstream and downstream sides of the stern of the beam transport vessel (1) for pushing and pulling.

5. The multi-dimensional auxiliary positioning system for a beam transport vessel for transporting steel box girders according to claim 1, characterized in that: The tugboat (2) is towed by two beam transport vessels (1) located in the turbulent water area, connected upstream and downstream of each other.

6. The multi-dimensional auxiliary positioning system for a beam transport vessel for transporting steel box girders according to claim 1, characterized in that: The Beidou / GPS dual-mode positioning instruments are evenly distributed along the center line of the steel box girder (3), and the total stations are built on the sidewalks on both banks in correspondence.

7. The multi-dimensional auxiliary positioning system for a beam transport vessel for transporting steel box girders according to claim 1, characterized in that: The tugboat (2) is equipped with a power of 3,000 to 4,000 horsepower, and the cable of the winch (4) is connected to the steel cofferdam of the corresponding side pier.

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