Fabricated steel bridge structure system and installation and construction method thereof

Abstract

The invention relates to a fabricated steel bridge structure system and an installation and construction method thereof, and belongs to the technical field of steel bridge construction. An outer side cylinder barrel is installed in the center of a river, the steel bridge left section body and the steel bridge right section body are symmetrically arranged, the outer side cylinder barrel is arranged on the outer side of the main steel pipe pile, water is contained in the outer side cylinder barrel, the main steel pipe pile is sleeved with a floating barrel, the bottom of the floating barrel floats in the outer side cylinder barrel, an iron chain is arranged at the bottom of the floating barrel, and the steel bridge left section body and the steel bridge right section body are symmetrically arranged. The other end of the iron chain is fixedly connected with the outer side cylinder barrel, a left side connecting frame connected with the steel bridge left section main body and a right side connecting frame connected with the steel bridge right section main body are arranged on the two side walls of the floating barrel correspondingly, and the other end of the steel bridge left section main body and the other end of the steel bridge right section main body are supported on a steel bridge land support A and a steel bridge land support B correspondingly. The construction method has the following beneficial effects that the construction process is simplified, and the construction efficiency is high. The problem that the fabricated steel bridge is affected by terrains, manufacturing cost and the like is solved.

Description

Technical Field

[0001] The invention relates to an assembled steel bridge structure system and an installation construction method thereof, belonging to the technical field of steel bridge construction. Background Art

[0002] With the continuous expansion of the scale and increase of the speed of transportation engineering construction in my country, bridge engineering has become a very important construction link.

[0003] The invention with application number 202411190986.3 discloses a seamless bridge assembled composite beam-steel pier and underground sliding abutment foundation. It relates to the technical field of seamless bridge and underground abutment foundation, including steel plate beam, concrete bridge deck, composite beam, steel pier, underground abutment, and composite abutment; the concrete bridge deck is connected to the steel plate beam by shear nails to form a composite beam; the steel pier is a steel structure portal pier, including a steel cap beam and a steel pier column; the steel plate beam intersects with the steel cap beam, and the concrete bridge deck on the upper part of the steel plate beam extends to the top of the steel cap beam; the lower part of the steel pier column is connected to the underground abutment, and the sliding abutment is divided into a sliding upper abutment and a sliding lower abutment; the bottom of the sliding upper abutment is provided with rectangular groove slideways at intervals, and the upper surface of the sliding lower abutment is provided with rail-type raised slideways at intervals, and the cooperation between the rectangular groove slideways at the bottom of the sliding upper abutment and the rail-type raised slideways of the sliding lower abutment allows relative displacement inside the sliding abutment; the invention can be widely used in the construction of multi-span bridges without expansion joints.

[0004] Current technical considerations are not comprehensive and have the following drawbacks: Existing steel structure bridge reinforcement methods are complex, and traditional construction methods such as on-site assembly of brackets, cable hoisting, etc., or the use of a large number of steel pipes and other materials to build assembly brackets, or the use of cables to assemble in sections, all have problems such as large consumption of measures and materials, low construction efficiency or high construction cost.

[0005] In order to solve one of the above problems, an assembled steel bridge structure system and an installation and construction method thereof are urgently needed. Summary of the invention

[0006] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is: how to use a connecting frame and land support to install the left section main body of the steel bridge and the right section main body of the steel bridge, simplify the construction process, and improve the construction efficiency. For this purpose, an assembled steel bridge structure system and an installation and construction method thereof are provided.

[0007] The assembled steel bridge structure system and the installation and construction method thereof described in the present invention include a steel bridge land support A and a steel bridge land support B arranged on both sides of a river, and are characterized in that: an outer cylinder is installed in the center of the river, and also includes a symmetrically arranged left section main body of the steel bridge and a right section main body of the steel bridge, an outer cylinder is arranged on the outer side of the main steel pipe pile, water is contained in the outer cylinder, a buoy is sleeved on the main steel pipe pile, the bottom of the buoy floats in the outer cylinder, an iron chain is arranged at the bottom of the buoy, the other end of the iron chain is fixedly connected to the outer cylinder, and a left connecting frame connected to the left section main body of the steel bridge and a right connecting frame connected to the right section main body of the steel bridge are respectively arranged on the two side walls of the buoy, and the other ends of the left section main body of the steel bridge and the right section main body of the steel bridge are respectively supported on the steel bridge land support A and the steel bridge land support B.

[0008] Preferably, the upper portion of the outer cylinder is arranged with a constant diameter, and the bottom of the outer cylinder is a cone that is wider at the top and narrower at the bottom.

[0009] Preferably, the cross-section of the outer cylinder is circular and is made of steel plate and is welded to the main steel pipe pile.

[0010] Preferably, the buoy is a cylindrical hollow tube with both ends sealed and a sleeve in the center. The key point is that the outer circumferential wall of the cylindrical hollow tube is in the shape of a vertical plane on both sides, a left connecting frame is installed on the left vertical plane, and a right connecting frame is installed on the right vertical plane.

[0011] Preferably, the left connecting frame includes two groups of first supporting units arranged at intervals, and the first supporting units include an upper hinged seat A and a lower hinged seat A fixed on the vertical plane on the left side, and the upper hinged seat A is located above the lower hinged seat A, and the upper hinged seat A and the lower hinged seat A are respectively hinged with a horizontal extension support beam A and an oblique support A, and an oblique support hinged seat A hinged to the oblique support A is fixed in the middle part of the horizontal extension support beam A, and multiple groups of upper unit supports A fixedly connected to the main body of the left section of the steel bridge are arranged at intervals along the length direction of the horizontal extension support beam A.

[0012] Preferably, the right side connecting frame includes two groups of second support monomers arranged at intervals, and the second support monomers include an upper hinge seat B and a lower hinge seat B fixed on the vertical plane on the right side, and the upper hinge seat B is located above the lower hinge seat B, and the upper hinge seat B and the lower hinge seat B are respectively hinged with a horizontal extension support beam B and an oblique support B, and an oblique support hinge seat B hinged to the oblique support B is fixed in the middle part of the horizontal extension support beam B, and multiple groups of upper monomer supports B fixedly connected to the right section main body of the steel bridge are arranged at intervals along the length direction of the horizontal extension support beam B.

[0013] Preferably, the main body of the right section of the steel bridge has the same structure as the main body of the left section of the steel bridge. The main body of the left section of the steel bridge includes a steel frame bridge body, and a plurality of groups of split road panels are paved along the length direction of the steel frame bridge body.

[0014] Preferably, the land support A of the steel bridge adopts prefabricated reinforced concrete piers.

[0015] Preferably, the installation and construction method of the assembled steel bridge structure system is to first install the outer cylinder in the middle of the main steel pipe pile, then install the assembly of the main steel pipe pile and the outer cylinder in the center of the river, retain half of the water in the outer cylinder, and pump out the excess water by a water pump, then install the left connecting frame and the right connecting frame on the outer wall of the buoy, and hoist the buoy by a crane to cooperate with the main steel pipe pile, the buoy is connected to the outer cylinder by an iron chain, and then fill the outer cylinder with water; A steel bridge land support A and a steel bridge land support B are respectively set up on both sides of the river, and finally the main body of the left section of the steel bridge and the main body of the right section of the steel bridge are installed.

[0016] Preferably, a liquid level sensor is provided in the outer cylinder, and the liquid level sensor is electrically connected to the signal input end of the controller. A water injection pump is installed on the outer wall of the outer cylinder, and the water injection pump is electrically connected to the signal output end of the controller. The water inlet of the water injection pump is connected to the river through a pipe, and the water outlet of the water injection pump is connected to the inner cavity of the outer cylinder through a pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The assembled steel bridge structure system and the installation and construction method thereof described in the present invention are characterized in that a left connecting frame connected to a left section main body of the steel bridge and a right connecting frame connected to a right section main body of the steel bridge are respectively arranged on the two side walls of the pontoon, the other ends of the left section main body of the steel bridge and the right section main body of the steel bridge are respectively supported on a steel bridge land support A and a steel bridge land support B, and the steel bridge land support A and the steel bridge land support B are respectively arranged on both sides of the river, and finally the left section main body of the steel bridge and the right section main body of the steel bridge are installed, thereby simplifying the construction process and achieving high construction efficiency.

[0018] The prefabricated steel bridge structure system and the installation and construction method thereof described in the present invention solve the difficulty that when the prefabricated steel bridge is affected by the terrain, cost and other aspects, the traditional construction method is not sufficient to meet the needs of more efficient and economical construction. The construction of the present invention is safe and efficient, and provides a different construction plan for the construction of the same type of mid-span arch bridges. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the buoy of the present invention; Figure 3 It is a structural diagram of the left connecting frame and the right connecting frame.

[0021] In the figure: 1, main steel pipe pile 2, outer cylinder 3, buoy 4, iron chain 5, left connecting frame 6, right connecting frame 7, left section main body of steel bridge 8, right section main body of steel bridge 9, land support A of steel bridge 10, land support B of steel bridge 11, horizontal extension support beam A 12, upper hinged seat A 13, upper single support A 14, oblique support hinged seat A 15, lower hinged seat A 16, oblique support A 17, horizontal extension support beam B 18, upper hinged seat B 19, upper single support B 20, oblique support hinged seat B 21, lower hinged seat B 22, oblique support B 23, liquid level sensor 24, controller 25, water injection pump 26, river liquid level. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings: The present invention is further illustrated below through specific embodiments, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0023] Embodiment 1, as Figure 1-2 As shown, the assembled steel bridge structure system includes a steel bridge land support A9 and a steel bridge land support B10 arranged on both sides of a river, an outer cylinder 2 is installed in the center of the river, and also includes a symmetrically arranged steel bridge left section main body 7 and a steel bridge right section main body 8, an outer cylinder 2 is arranged on the outer side of the main steel pipe pile 1, and water is contained in the outer cylinder 2, and a buoy 3 is sleeved on the main steel pipe pile 1, and the bottom of the buoy 3 floats in the outer cylinder 2, and an iron chain 4 is arranged at the bottom of the buoy 3, and the other end of the iron chain 4 is fixedly connected to the outer cylinder 2, and the left side connecting frame 5 connected to the steel bridge left section main body 7 and the right side connecting frame 6 connected to the steel bridge right section main body 8 are respectively arranged on the two side walls of the buoy 3, and the other ends of the steel bridge left section main body 7 and the steel bridge right section main body 8 are respectively supported on the steel bridge land support A9 and the steel bridge land support B10.

[0024] Embodiment 2, as Figure 1-3 As shown, the assembled steel bridge structure system includes a steel bridge land support A9 and a steel bridge land support B10 arranged on both sides of a river, an outer cylinder 2 is installed in the center of the river, and also includes a symmetrically arranged steel bridge left section main body 7 and a steel bridge right section main body 8, an outer cylinder 2 is arranged on the outer side of the main steel pipe pile 1, and water is contained in the outer cylinder 2, and a buoy 3 is sleeved on the main steel pipe pile 1, and the bottom of the buoy 3 floats in the outer cylinder 2, and an iron chain 4 is arranged at the bottom of the buoy 3, and the other end of the iron chain 4 is fixedly connected to the outer cylinder 2, and the left side connecting frame 5 connected to the steel bridge left section main body 7 and the right side connecting frame 6 connected to the steel bridge right section main body 8 are respectively arranged on the two side walls of the buoy 3, and the other ends of the steel bridge left section main body 7 and the steel bridge right section main body 8 are respectively supported on the steel bridge land support A9 and the steel bridge land support B10.

[0025] Furthermore, the upper portion of the outer cylinder 2 is arranged with a constant diameter, and the bottom of the outer cylinder 2 is a cone that is wider at the top and narrower at the bottom.

[0026] Furthermore, the cross-section of the outer cylinder 2 is circular and is made of steel plate and is welded to the main steel pipe pile 1 .

[0027] Furthermore, the buoy 3 is a cylindrical hollow tube with both ends blocked, and a sleeve is provided in the center of the cylindrical hollow tube. The key point is that the outer circumferential wall of the cylindrical hollow tube is in the shape of a vertical plane on both sides, and a left connecting frame 5 is installed on the vertical plane on the left, and a right connecting frame 6 is installed on the vertical plane on the right.

[0028] Furthermore, the left connecting frame 5 includes two groups of first supporting units arranged at intervals, and the first supporting units include an upper hinge seat A12 and a lower hinge seat A15 fixed on the vertical plane on the left side, and the upper hinge seat A12 is located above the lower hinge seat A15, and the upper hinge seat A12 and the lower hinge seat A15 are respectively hinged with a horizontal extension support beam A11 and an oblique support A16, and an oblique support hinge seat A14 hinged to the oblique support A16 is fixed in the middle part of the horizontal extension support beam A11, and a plurality of groups of upper unit supports A13 fixedly connected to the left section main body 7 of the steel bridge are arranged at intervals along the length direction of the horizontal extension support beam A11.

[0029] Furthermore, the right side connecting frame 6 includes two groups of second supporting monomers arranged at intervals, and the second supporting monomers include an upper hinge seat B18 and a lower hinge seat B21 fixed on the vertical plane on the right side, and the upper hinge seat B18 is located above the lower hinge seat B21, and the upper hinge seat B18 and the lower hinge seat B21 are respectively hinged with a horizontal extension support beam B17 and an oblique support B22, and an oblique support hinge seat B20 hinged to the oblique support B22 is fixed in the middle part of the horizontal extension support beam B17, and a plurality of groups of upper monomer supports B19 fixedly connected to the right section main body 8 of the steel bridge are arranged at intervals along the length direction of the horizontal extension support beam B17.

[0030] Furthermore, the structure of the right section body 8 of the steel bridge is the same as that of the left section body 7 of the steel bridge. The left section body 7 of the steel bridge includes a steel frame bridge body, and a plurality of groups of split road panels are paved along the length direction of the steel frame bridge body.

[0031] Furthermore, the land support A9 of the steel bridge adopts prefabricated reinforced concrete piers.

[0032] Embodiment 3, the installation and construction method of the prefabricated steel bridge structure system, first install the outer cylinder 2 in the middle of the main steel pipe pile 1, and then install the assembly of the main steel pipe pile 1 and the outer cylinder 2 in the center of the river, the river liquid level 26 is higher than the outer cylinder 2, half of the water is retained in the outer cylinder 2, and the excess water is pumped out by a water pump, and then the left connecting frame 5 and the right connecting frame 6 are installed on the outer wall of the pontoon 3, and the pontoon 3 is hoisted by a crane to be connected with the main steel pipe pile 1, the pontoon 3 is connected to the outer cylinder 2 by an iron chain 4, and then the outer cylinder 2 is filled with water; a steel bridge land support A9 and a steel bridge land support B10 are respectively set on both sides of the river, and finally the left section main body 7 and the right section main body 8 of the steel bridge are installed.

[0033] Furthermore, a liquid level sensor 23 is provided in the outer cylinder 2, and the liquid level sensor 23 is electrically connected to the signal input end of the controller 24. A water injection pump 25 is installed on the outer wall of the outer cylinder 2, and the water injection pump 25 is electrically connected to the signal output end of the controller 24. The water inlet of the water injection pump 25 is connected to the river through a pipeline, and the water outlet of the water injection pump 25 is connected to the inner cavity of the outer cylinder 2 through a pipeline. In the assembled steel bridge structure system and the installation and construction method thereof of the present invention, a left connecting frame connected to the left section of the steel bridge and a right connecting frame connected to the right section of the steel bridge are respectively provided on the two side walls of the pontoon, and the other ends of the left section of the steel bridge and the right section of the steel bridge are respectively supported on the land support A and the land support B of the steel bridge, and the land support A and the land support B of the steel bridge are respectively provided on both sides of the river, and finally the left section of the steel bridge and the right section of the steel bridge are installed, which simplifies the construction process and has high construction efficiency.

[0034] The prefabricated steel bridge structure system and the installation and construction method thereof described in the present invention solve the difficulty that when the prefabricated steel bridge is affected by the terrain, cost and other aspects, the traditional construction method is not sufficient to meet the needs of more efficient and economical construction. The construction of the present invention is safe and efficient, and provides a different construction plan for the construction of the same type of mid-span arch bridges.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

[0036] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. An assembled steel bridge structure system, comprising a steel bridge land support A and a steel bridge land support B arranged on both sides of a river, characterized in that: An outer cylinder is installed in the center of the river, and also includes a symmetrically arranged left section main body of the steel bridge and a right section main body of the steel bridge. An outer cylinder is arranged on the outer side of the main steel pipe pile, and water is contained in the outer cylinder. A buoy is sleeved on the main steel pipe pile, and the bottom of the buoy floats in the outer cylinder. An iron chain is arranged at the bottom of the buoy, and the other end of the iron chain is fixedly connected to the outer cylinder. A left connecting frame connected to the left section main body of the steel bridge and a right connecting frame connected to the right section main body of the steel bridge are respectively arranged on both side walls of the buoy. The other ends of the left section main body of the steel bridge and the right section main body of the steel bridge are respectively supported on the steel bridge land support A and the steel bridge land support B.

2. The assembled steel bridge structure system according to claim 1, characterized in that: The upper portion of the outer cylinder is arranged with a constant diameter, and the bottom of the outer cylinder is a cone that is wide at the top and narrow at the bottom.

3. The assembled steel bridge structure system according to claim 2 is characterized in that: The cross section of the outer cylinder is circular and is made of steel plate and is welded to the main steel pipe pile.

4. The assembled steel bridge structure system according to claim 2, characterized in that: The buoy is a cylindrical hollow tube with both ends blocked and a sleeve in the center. The key point is that the outer circumferential wall of the cylindrical hollow tube is in the shape of a vertical plane on both sides, a left connecting frame is installed on the left vertical plane, and a right connecting frame is installed on the right vertical plane.

5. The assembled steel bridge structure system according to claim 2, characterized in that: The left connecting frame includes two groups of first supporting units arranged at intervals, and the first supporting units include an upper hinged seat A and a lower hinged seat A fixed on the vertical plane on the left side, and the upper hinged seat A is located above the lower hinged seat A, and a horizontally extending support beam A and an oblique support A are hinged on the upper hinged seat A and the lower hinged seat A, respectively, and an oblique support hinged seat A hinged to the oblique support A is fixed in the middle of the horizontally extending support beam A, and multiple groups of upper unit supports A fixedly connected to the main body of the left section of the steel bridge are arranged at intervals along the length direction of the horizontally extending support beam A.

6. The assembled steel bridge structure system according to claim 2, characterized in that: The right side connecting frame includes two groups of second support monomers arranged at intervals, and the second support monomers include an upper hinge seat B and a lower hinge seat B fixed on the vertical plane on the right side, and the upper hinge seat B is located above the lower hinge seat B, and the upper hinge seat B and the lower hinge seat B are respectively hinged with a horizontal extension support beam B and an oblique support B, and an oblique support hinge seat B hinged to the oblique support B is fixed in the middle part of the horizontal extension support beam B, and multiple groups of upper monomer supports B fixedly connected to the right section main body of the steel bridge are arranged at intervals along the length direction of the horizontal extension support beam B.

7. The assembled steel bridge structure system according to claim 2, characterized in that: The structure of the main body of the right section of the steel bridge is the same as that of the main body of the left section of the steel bridge. The main body of the left section of the steel bridge includes a steel frame bridge body, and multiple groups of split road panels are paved along the length direction of the steel frame bridge body.

8. The assembled steel bridge structure system according to claim 2, characterized in that: The land support A of the steel bridge adopts prefabricated reinforced concrete piers.

9. An installation and construction method for a prefabricated steel bridge structure system, characterized in that: First, install the outer cylinder in the middle of the main steel pipe pile, then install the assembly of the main steel pipe pile and the outer cylinder in the center of the river, retain half of the water in the outer cylinder, and use a water pump to pump out the excess water. Then install the left connecting frame and the right connecting frame on the outer wall of the pontoon, and use a crane to lift the pontoon and connect it with the main steel pipe pile. The pontoon is connected to the outer cylinder with an iron chain, and then fill the outer cylinder with water; set up steel bridge land support A and steel bridge land support B on both sides of the river respectively, and finally install the left section main body of the steel bridge and the right section main body of the steel bridge.

10. The installation and construction method of the assembled steel bridge structure system according to claim 2, characterized in that: A liquid level sensor is arranged in the outer cylinder, and the liquid level sensor is electrically connected to the signal input end of the controller. A water injection pump is installed on the outer wall of the outer cylinder, and the water injection pump is electrically connected to the signal output end of the controller. The water inlet of the water injection pump is connected to the river through a pipeline, and the water outlet of the water injection pump is connected to the inner cavity of the outer cylinder through a pipeline.

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