Floating, dragging and sliding construction device for steel truss girder

Abstract

The invention discloses a steel truss girder floating, dragging and sliding construction device which comprises a floating pontoon, a plurality of supporting frames used for supporting a steel truss girder are evenly arranged on the surface of the floating pontoon, a plurality of floating air bags are evenly arranged on the bottom face of the floating pontoon, air in the floating air bags is controlled through an air pump capable of inflating and sucking air, and the air pump is located on the surface of the floating pontoon. A circle of water line is arranged on the side face of the pontoon. Furthermore, limiting rings are arranged on the left side and the right side of the floating pontoon in the movement direction respectively. A circle of multiple water quantity sensors are uniformly arranged on the water level line, and each floating air bag is connected with an air pump through an electromagnetic valve; the construction device further comprises a processor and a power source. The temporary supporting frame is arranged on the pontoon to support the steel truss girder, and the steel truss girder is translated from one end of the river channel to the other end of the river channel in a waterway mode, so that the stable contact between the steel truss girder and the pier can be quickly and effectively determined during construction, the construction cost is reduced, and the construction time is saved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a steel truss girder floating, dragging and sliding construction device. Background Art

[0002] In recent years, with the rapid economic development, the number of bridges across rivers has increased day by day. Among them, steel truss bridges are a type of structural form widely used in bridges across rivers. The overall erection of steel trusses across rivers is the difficulty and technical control point of such bridges.

[0003] At present, cranes are used to hoist steel trusses across rivers. However, due to the limitation of the steel trusses contacting the bridge piers at both ends of the river, an experienced crane driver is required to operate the crane to ensure that the steel trusses are firmly fixed on the bridge piers. At the same time, there will be multiple construction workers on site to observe the position of the steel trusses and communicate with the crane driver to repeatedly adjust the position of the steel trusses. Only in this way can the steel trusses be stably erected across the river and firmly contact the bridge piers at both ends. Obviously, this method requires huge construction costs and consumes a huge amount of construction time. Summary of the invention

[0004] The purpose of the present invention is to overcome the problems existing in the above-mentioned prior art and to provide a steel truss floating, towing and sliding construction device, which supports the steel truss by setting a temporary support frame on a floating boat, and uses a waterway to move the steel truss from one end of the river channel to the other end. Therefore, during construction, the contact between the steel truss and the bridge pier can be quickly and effectively determined to be stable, thereby reducing construction costs and saving construction time.

[0005] To this end, the present invention provides a steel truss floating, towing and sliding construction device, including a floating boat, a plurality of support frames for supporting steel trusses are evenly arranged on the deck of the floating boat, a plurality of floating air bags are evenly arranged on the bottom of the floating boat, the gas in the floating air bags is controlled by an air pump capable of inflating and sucking air, the air pump is located on the deck, and a circle of water level lines is also arranged on the side of the floating boat.

[0006] Furthermore, a circle of multiple water volume sensors are evenly arranged on the water level line, and each of the floating airbags is connected to the air pump via a solenoid valve;

[0007] The construction device also includes a processor and a power supply. The processor is respectively connected to the water volume sensor, the solenoid valve and the air pump signal, and the power supply is respectively electrically connected to the processor, the water volume sensor, the solenoid valve and the air pump.

[0008] Furthermore, the number of the water volume sensors is twice the number of the sides of the floating vessel, and one water volume sensor is respectively arranged at both ends of each side of the floating vessel.

[0009] Furthermore, the bottom of the support frame is connected to the deck of the floating vessel through a pressure sensor;

[0010] The pressure sensor is signal-connected to the processor, and the pressure sensor is electrically connected to the power supply.

[0011] Furthermore, the bottom surface of the floating boat is provided with a plurality of airbag lines from the inside to the outside, the airbag line of the innermost layer is a straight line, and the remaining airbag lines are all circular;

[0012] The floating airbag is arranged on the airbag line.

[0013] Furthermore, a plurality of the floating airbags are evenly arranged on each of the airbag lines.

[0014] Furthermore, the support frame includes a support column, and a support pad for supporting the steel truss is arranged on the top of the support column.

[0015] Furthermore, the support frame also includes a plurality of stabilizing plates and a plurality of fixing rods, wherein the stabilizing plates are evenly arranged along the circumference of the top of the support column, the top of the stabilizing plates is connected to the support pad, and the fixing rods are evenly arranged along the circumference of the bottom of the support column, and the bottom of the fixing rods is fixed to the surface of the floating vessel.

[0016] Furthermore, a limiting ring is provided on both sides of the floating vessel along the moving direction.

[0017] The present invention has the following beneficial effects:

[0018] The present invention provides a steel truss floating, dragging and sliding construction device, which supports the steel truss by arranging a temporary support frame on a floating boat, and horizontally moves the steel truss from one end of a river channel to the other end by water. While traveling by water, the size of the floating airbag is adjusted according to the floating height of the floating boat, and the buoyancy of the floating boat is adjusted, so that the steel truss can be smoothly transported when it is transported horizontally by water. In combination with a limit ring, the steel truss can be smoothly docked with the piers on both sides by limiting the movement trajectory of the floating boat, so that during construction, the contact between the steel truss and the pier can be quickly and effectively determined to be stable, thereby reducing construction costs and saving construction time.

[0019] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic cross-sectional view of the longitudinal structure of the present invention as a whole;

[0021] Figure 2It is a structural schematic diagram of the water level line in the present invention;

[0022] Figure 3 It is a structural schematic diagram of the bottom of the floating boat in the present invention.

[0023] Description of reference numerals:

[0024] 1. Floating boat; 2. Limiting ring; 3. Water level line; 4. Floating airbag; 5. Support frame; 5-1. Support column; 5-2. Stabilizing plate; 5-3. Fixing rod; 6. Air pump; 7. Pressure sensor; 8. Water level sensor; 9. Airbag line. DETAILED DESCRIPTION

[0025] A specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0026] In the present application document, component models and structures that are not clearly defined are all prior arts known to those skilled in the art, and those skilled in the art may set them according to actual needs, and are not specifically limited in the embodiments of the present application document.

[0027] Specifically, Figure 1-3 As shown, an embodiment of the present invention provides a steel truss floating, dragging and sliding construction device, including a floating vessel 1, on the deck of which a plurality of support frames 5 for supporting steel trusses are evenly arranged, and on the bottom of the floating vessel 1 a plurality of floating air bags 4 are evenly arranged, wherein the floating air bags 4 control the gas therein by an air pump 6 capable of inflating and sucking air, and the air pump 6 is located on the deck, and a circle of water level lines 3 is also arranged on the side of the floating vessel 1.

[0028] The present invention supports the steel truss by arranging a temporary support frame on the floating ship 1, and moves the steel truss from one end of the river to the other end by water. While moving by water, the size of the floating airbag 4 is adjusted according to the floating height of the floating ship 1, and the buoyancy of the floating ship 1 is adjusted, so that the steel truss can be transported smoothly when it is transported horizontally by water, reducing construction costs and saving construction time.

[0029] During construction, workers drive the pontoon 1 and use the support frame 5 on the pontoon 1 to support the steel truss, so that when the pontoon 1 moves across the river, the steel truss moves to the other side of the river at the same time. When the pontoon 1 moves to the other side, the steel truss will be completely docked with the bridge pier on the other side of the river, completing the smooth transportation of the steel truss.

[0030] During transportation, when driving the floating boat 1, the workers can determine whether to increase or decrease the buoyancy of the floating boat 1 on the water surface according to the height of the water level line 3, so as to ensure that the height of the steel truss remains unchanged during transportation.

[0031] At the beginning of transportation, a part of the floating airbags 4 will be opened. Of course, the distribution of the opened floating airbags 4 is uniform. When increasing or decreasing in the later stage, it is necessary to ensure that the distribution of the opened floating airbags 4 after increase or decrease is uniform, so as to ensure the stability of the floating vessel 1, and also ensure the stability of the steel truss transportation.

[0032] In the present invention, a circle of multiple water volume sensors 8 are evenly arranged on the water level line 3, and each of the floating airbags 4 is connected to the air pump 6 through a solenoid valve; the construction device also includes a processor and a power supply, the processor is respectively connected to the water volume sensor 8, the solenoid valve and the air pump 6 signals, and the power supply is respectively electrically connected to the processor, the water volume sensor 8, the solenoid valve and the air pump 6.

[0033] The present invention uses a processor to adjust the buoyancy of the floating vessel 1 so that the floating vessel 1 is kept on the same water level 3, thereby making the steel trusses on the floating vessel 1 at the same fixed height.

[0034] The specific working method is: the processor can obtain the current state of the floating boat 1, including the tilt state of the floating boat 1, etc., according to the water volume detected by the water volume sensor 8 and the corresponding position of the water volume sensor 8. Then, according to the state of the floating boat 1, it is determined whether the buoyancy should be reduced or increased, and which part of the buoyancy should be reduced or increased, so as to determine the floating airbags 4 that need to be adjusted, and then according to the control source of the floating airbags 4 that need to be adjusted, that is, the electromagnetic valves and air pumps 6 corresponding to each floating airbag 4, the floating airbags 4 are evacuated or inflated, so that the processor can adjust the buoyancy of the floating boat 1.

[0035] In addition, in the present invention, in order to save costs, the number of the water level sensors 8 is twice the number of the sides of the floating boat 1, and one water level sensor 8 is respectively provided at both ends of each side of the floating boat 1. The current state of the floating boat 1 can be clearly obtained through the values ​​and positions of the left and right water level sensors 8.

[0036] In the present invention, the values ​​detected by the water level sensors 8 on the same side of the floating boat 1 are all within the set range, which means that the current state of the floating boat 1 is normal and no adjustment is required. Of course, the setting range of the values ​​detected by the water level sensors 8 on each side of the floating boat 1 is the same.

[0037] In the present invention, in order to further adjust the state of the floating vessel 1 through data, the bottom of the support frame 5 is connected to the deck of the floating vessel 1 through a pressure sensor 7; the pressure sensor 7 is connected to the processor signal, and the pressure sensor 7 is electrically connected to the power supply.

[0038] The present invention receives the pressure from the steel truss to determine the required buoyancy, and then controls the electromagnetic valve and the air pump 6 through the processor according to the required buoyancy to float the airbag 4 so as to obtain the corresponding buoyancy, thereby controlling the state of the floating vessel 1.

[0039] Its working process is that the processor receives the data of the pressure sensor 7 and converts the data of the pressure sensor 7 into the size of the pressure, combined with the size of the set comprehensive force. The size of the comprehensive force is originally set, which is calculated based on the gravity of the steel truss and the gravity of the support frame 5. In this way, in order to determine that the size of the comprehensive force is within the range of the sacrifice, it is necessary to adjust the size of the buoyancy, so that we will get a range of buoyancy. According to this range, the solenoid valve and the corresponding air pump are evenly controlled so that the floating airbag 4 evenly provides buoyancy to the floating boat 1, thereby controlling and adjusting the state of the floating boat 1.

[0040] In the present invention, since the floating airbag 4 is required to provide uniform buoyancy, a plurality of airbag lines 9 are sequentially arranged on the bottom surface of the floating vessel 1 from the inside to the outside, the innermost airbag line 9 is a straight line, and the remaining airbag lines 9 are all circular; the floating airbag 4 is arranged on the airbag line 9.

[0041] The annular airbag line 9 can effectively distribute the floating airbags 4 evenly, so that the floating airbags 4 are evenly distributed on the bottom of the floating ship 1, so that the floating ship 1 has uniform buoyancy, thereby ensuring smooth transportation of the steel trusses.

[0042] Wherein, a plurality of the floating airbags 4 are evenly arranged on each of the airbag lines 9 .

[0043] In the present invention, in order to better support the steel truss and ensure that the bottom surface of the steel truss is not damaged during transportation, the support frame 5 includes a support column 5-1, and a support pad for supporting the steel truss is arranged on the top of the support column 5-1.

[0044] In order to reinforce the support column 5-1 and make the support frame 5 stably and firmly supported, the support frame 5 also includes a plurality of stabilizing plates 5-2 and a plurality of fixing rods 5-3. The stabilizing plates 5-2 are evenly arranged along the circumference of the top of the support column 5-1, and the top of the stabilizing plates 5-2 is connected to the support pad. The fixing rods 5-3 are evenly arranged along the circumference of the bottom of the support column 5-1, and the bottom of the fixing rods 5-3 is fixed to the surface of the floating vessel 1.

[0045] In the present invention, in order to quickly and effectively determine the stability of the connection between the steel truss and the bridge pier on the river bank, a limit ring 2 is provided on the left and right sides of the floating ship 1 along the movement direction. The present invention can be combined with the limit ring 2 to allow the steel truss to smoothly connect with the bridge piers on both sides by limiting the movement trajectory of the floating ship 1, so that during construction, the contact stability between the steel truss and the bridge pier can be quickly and effectively determined.

[0046] During construction, relatively positioned positioning rods are set near the bridge piers at both ends of the river channel, the positioning rods are fixed, and the corresponding positioning rods are connected by chains. Generally, thick iron chains or titanium alloy chains, chains of materials with higher hardness commonly used in engineering, or connecting rods are also acceptable. The chains or connecting rods pass through the limiting rings 2, so that the floating boat 1 will move along the length direction of the chains or connecting rods when traveling, and the floating boat 1 is limited, so as to achieve the effect of quickly and effectively determining the contact and stability between the steel truss and the bridge pier.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A steel truss girder floating, dragging and sliding construction device, characterized in that: The invention comprises a floating boat (1), wherein a plurality of support frames (5) for supporting steel trusses are evenly arranged on the deck of the floating boat (1), a plurality of floating air bags (4) are evenly arranged on the bottom of the floating boat (1), the gas in the floating air bags (4) is controlled by an air pump (6) capable of inflating and sucking air, the air pump (6) is located on the deck, and a circle of water level lines (3) are also arranged on the side of the floating boat (1).

2. A steel truss girder floating, dragging and sliding construction device as claimed in claim 1, characterized in that: A circle of multiple water volume sensors (8) are evenly arranged on the water level line (3), and each of the floating air bags (4) is connected to the air pump (6) via a solenoid valve; The construction device also includes a processor and a power supply, wherein the processor is respectively connected to the water volume sensor (8), the solenoid valve and the air pump (6) by signals, and the power supply is respectively connected to the processor, the water volume sensor (8), the solenoid valve and the air pump (6) by electrical signals.

3. A steel truss girder floating, dragging and sliding construction device as claimed in claim 2, characterized in that: The number of the water volume sensors (8) is twice the number of the sides of the floating vessel (1), and one water volume sensor (8) is respectively arranged at both ends of each side of the floating vessel (1).

4. A steel truss girder floating, dragging and sliding construction device as claimed in claim 3, characterized in that: The bottom of the support frame (5) is connected to the deck of the floating vessel (1) via a pressure sensor (7); The pressure sensor (7) is signal-connected to the processor, and the pressure sensor (7) is electrically connected to the power supply.

5. A steel truss girder floating, dragging and sliding construction device as claimed in claim 2, characterized in that: The bottom surface of the floating boat (1) is provided with a plurality of airbag lines (9) in sequence from the inside to the outside, the airbag lines (9) in the innermost layer are straight lines, and the remaining airbag lines (9) are all ring-shaped; The floating airbag (4) is arranged on the airbag line (9).

6. A steel truss girder floating, dragging and sliding construction device as claimed in claim 5, characterized in that: A plurality of the floating airbags (4) are evenly arranged on each of the airbag lines (9).

7. The steel truss girder floating, dragging and sliding construction device according to claim 1, characterized in that: The support frame (5) comprises a support column (5-1), and a support pad for supporting a steel truss beam is arranged on the top of the support column (5-1).

8. A steel truss girder floating, dragging and sliding construction device as claimed in claim 7, characterized in that: The support frame (5) further comprises a plurality of stabilizing plates (5-2) and a plurality of fixing rods (5-3); the stabilizing plates (5-2) are evenly arranged along the circumference of the top of the support column (5-1); the top of the stabilizing plates (5-2) is connected to the support pad; the fixing rods (5-3) are evenly arranged along the circumference of the bottom of the support column (5-1); the bottom of the fixing rods (5-3) is fixed to the surface of the floating vessel (1).

9. The steel truss girder floating, dragging and sliding construction device according to claim 1, characterized in that: A limiting ring (2) is respectively arranged on the left and right sides of the floating vessel (1) along the moving direction.

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