Wind power combined type wind-resistant stable bridge tower structure and construction method thereof

Abstract

The invention relates to the technical field of bridge tower structures, in particular to a wind power combined type wind-resistant stable bridge tower structure and a construction method thereof. According to the technical scheme, the wind power generation device comprises two combined bridge towers, a cross beam is fixedly installed between the two adjacent combined bridge towers, the wind power generation device further comprises wind nozzles fixedly installed on the combined bridge towers, and wind power generation devices are fixedly installed on the two sides of the combined bridge towers. The wind nozzle and the wind power generation device are combined, wind energy is fully utilized, power can be directly supplied to facilities such as street lamps on a bridge floor, carbon emission of a building is reduced, the green development concept is met, the structural form is suitable for a large-span bridge tower structure, the wind resistance of the bridge tower is improved, and meanwhile the purpose of reducing carbon is achieved through the wind energy.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge tower structures, and in particular to a wind-power combined wind-resistant and stable bridge tower structure and a construction method thereof. Background Art

[0002] Composite bridge tower is a common structural form in modern bridge engineering. It combines the advantages of steel and concrete to achieve higher structural performance and economy. Composite bridge tower refers to a bridge tower column structure that combines steel and concrete. This structure usually includes a steel skeleton (outer shell or inner shell) and concrete filled inside the skeleton. This combination not only utilizes the high tensile strength and good ductility of steel, but also the high compressive strength and good durability of concrete.

[0003] The loads imposed by wind on bridge structures can be enormous, especially on tall bridge towers. These loads include static wind loads and dynamic wind loads, the latter of which may cause structural vibrations. Wind-induced vibrations may cause fatigue damage to the structure. Therefore, it is necessary to set up wind-resistant structures on composite bridge towers. Summary of the invention

[0004] The purpose of the present invention is to address the problems existing in the background technology and to propose a wind-power combined wind-resistant and stable bridge tower structure and a construction method thereof.

[0005] On the one hand, the present invention provides a wind-power combined wind-resistant and stable bridge tower structure, comprising two combined bridge towers, a crossbeam is fixedly installed between two adjacent combined bridge towers, and further comprising:

[0006] A wind nozzle fixedly mounted on the combined bridge tower, and wind power generation devices are fixedly mounted on both sides of the combined bridge tower;

[0007] The combined bridge tower comprises a steel outer shell and a steel inner shell located inside the steel outer shell. The steel outer shell and the steel inner shell are fixedly connected by an anchor rod. A diameter reducing assembly is provided at the end of the anchor rod to adjust the diameter of one end of the anchor rod.

[0008] Optionally, concrete is poured between the steel outer shell and the steel inner shell, and the thickness of the steel outer shell is greater than that of the steel inner shell.

[0009] Optionally, steel bars are arranged longitudinally and transversely inside the concrete.

[0010] Optionally, the steel inner shell is made of a rectangular square tube, the steel outer shell is made of a special-shaped square tube, and the steel outer shell is provided with a cut corner on the outer windward side.

[0011] Optionally, the wind nozzle is composed of two steel plates, which are connected to the outer windward side of the combined bridge tower and fit with the cut corners on the steel shell.

[0012] Optionally, the wind power generation device is installed inside the combined bridge tower and is perpendicular to the combined bridge tower.

[0013] Optionally, the anchor rod includes a connecting rod, the connecting rod is provided with a first thread, and two fastening nuts are threadedly connected to the first thread.

[0014] Optionally, the reducing assembly includes an adjusting rod installed inside the connecting rod, the adjusting rod is provided with a second thread, the adjusting rod is threadably connected to the connecting rod via the second thread, a bolt head is fixedly installed on the adjusting rod, a connecting plate is rotatably installed on the adjusting rod, a plurality of first connecting rods are rotatably installed on the connecting plate, a connecting block is rotatably installed on the first connecting rod, a second connecting rod is rotatably installed on the connecting block, and the second connecting rod is rotatably connected to the connecting rod.

[0015] Optionally, a plurality of support blocks are slidably mounted on the connecting rod, a conical block is rotatably mounted on the adjusting rod, the support block is slidably connected to the conical block, and a limit plate is fixedly mounted on the adjusting rod.

[0016] On the other hand, the present invention provides a wind power combined wind-resistant and stable bridge tower construction method, which is applied to the above wind power combined wind-resistant and stable bridge tower structure, and the method comprises the following steps:

[0017] Step 1: Install the steel outer shell and steel inner shell segments, and connect the steel outer shell and steel inner shell by anchor rods or on-site welding;

[0018] Step 2: Install the air nozzle. Use high-strength bolts or on-site welding to connect the air nozzle to the steel shell;

[0019] Step 3: Install the wind turbine generator on the leeward side of the steel casing, and lay out wind turbine power lines and batteries;

[0020] Step 4: Hoist the steel cage between the steel outer shell and the steel inner shell, and then pour concrete between the steel outer shell and the steel inner shell.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] The combined bridge tower of the present invention adopts a steel-concrete combination form, and the combined bridge tower has high strength, high rigidity, and convenient construction, and can realize template-free construction, which shortens the construction period to the greatest extent. The wind nozzle is easy to install, greatly improves the wind resistance of the bridge tower structure, and has high benefits.

[0023] By further combining the wind nozzle with the wind power generation device and making full use of wind energy, it is possible to directly power facilities such as street lights on the bridge deck, reduce building carbon emissions, and comply with the concept of green development. This structural form is suitable for large-span bridge tower structures, which can improve the wind resistance of the tower while using wind energy to achieve carbon reduction goals. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A structural schematic diagram of the bridge tower structure of the present invention is given;

[0025] Figure 2 It is a structural schematic diagram of the air nozzle;

[0026] Figure 3 It is a structural schematic diagram of the combined bridge tower;

[0027] Figure 4 Schematic diagram of the gas flow direction between the two bridge towers;

[0028] Figure 5 It is a schematic diagram of the position of the anchor rod of the present invention;

[0029] Figure 6 A structural schematic diagram of the anchor rod of the present invention is given;

[0030] Figure 7 It is a structural schematic diagram of the variable diameter assembly of the present invention;

[0031] Figure 8 A schematic diagram of the internal structure of the anchor rod is given.

[0032] Figure numerals: 1. Combined bridge tower; 101. Steel outer shell; 102. Steel inner shell; 103. Concrete; 104. Cutting angle; 2. Crossbeam; 3. Wind nozzle; 301. Steel plate; 4. Wind turbine; 5. Anchor rod; 501. Connecting rod; 502. First thread; 503. Fastening nut; 504. Adjusting rod; 505. Connecting plate; 506. First connecting rod; 507. Connecting block; 508. Second connecting rod; 509. Second thread; 510. Bolt head; 6. Support block; 601. Conical block; 602. Limiting plate. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] Embodiment 1, as Figures 1 to 5As shown, on the one hand, the wind-power combined wind-resistant stable bridge tower structure proposed by the present invention includes two combined bridge towers 1, and a crossbeam 2 is fixedly installed between the two adjacent combined bridge towers 1. The crossbeam 2 is in the form of a square steel tube cross-section. The crossbeam 2 connects the two combined bridge towers 1 so that the two combined bridge towers 1 form a whole to resist wind loads together. The combined bridge tower 1 includes a steel outer shell 101 and a steel inner shell 102 located inside the steel outer shell 101. The steel outer shell 101 and the steel inner shell 102 are fixedly connected by anchor rods 5. The steel outer shell 101, as the external structure of the combined bridge tower 1, mainly bears lateral loads, such as wind loads and earthquake effects, and has good tensile strength and ductility. The steel inner shell 102 serves as an internal skeleton to provide longitudinal and lateral support, and also serves as a template for pouring concrete 103. The steel inner shell 102 is usually smaller than the steel outer shell 101 to save materials.

[0035] Furthermore, concrete 103 is poured between the steel outer shell 101 and the steel inner shell 102, and the thickness of the steel outer shell 101 is greater than that of the steel inner shell 102. Steel bars are arranged longitudinally and transversely inside the concrete 103. A steel cage is arranged inside the concrete 103. When the steel inner shell 102 is filled with concrete, a steel cage is usually arranged inside the steel inner shell to increase the tensile strength and shear strength of the concrete. The concrete 103 is poured inside the steel inner shell, and the compactness and quality of the concrete 103 need to be ensured to give full play to its advantage of high compressive strength. The anchor rod 5 is used to connect the steel outer shell 101 and the steel inner shell 102 to provide additional structural rigidity and stability.

[0036] Furthermore, the steel inner shell 102 is made of a rectangular square tube, the steel outer shell 101 is made of a special-shaped square tube, and the steel outer shell 101 is provided with a cut corner 104 on the outer windward side.

[0037] This embodiment also includes a wind nozzle 3 fixedly mounted on the combined bridge tower 1. The wind nozzle 3 is composed of two steel plates 301. The steel plates 301 are connected to the outer windward side of the combined bridge tower 1 and fit with the cut corners 104 on the steel shell 101. The wind nozzle 3 is an important component used in bridge design to improve aerodynamic characteristics, reduce wind-induced vibrations and enhance structural stability. When the cross-bridge wind blows through the combined bridge tower 1, it is dispersed by the wind nozzle 3, greatly reducing the static wind load on the side of the combined bridge tower 1. After the cross-bridge wind is dispersed by the wind nozzle 3, a high-pressure area is formed in the middle of the two combined bridge towers 1, forming wind from the middle to both sides.

[0038] Among them, wind power generation devices 4 are fixedly installed on both sides of the combined bridge tower 1. The wind power generation device 4 is installed on the inner side of the combined bridge tower 1 and is perpendicular to the combined bridge tower 1. The wind power generation device 4 includes blades, a shaft and a generator. The blades are the key part for capturing wind energy, and usually adopt an airfoil design to improve the efficiency of wind energy conversion. The shaft can connect the blades and the generator to bear the torque generated by the blades. The generator is a device that converts wind energy into electrical energy. It can be a DC to AC generator or an AC generator (the wind power generation device 4 is a prior art and will not be described here). After the cross-bridge wind is dispersed by the wind nozzle 3, a high-pressure area is formed in the middle of the two combined bridge towers 1, forming wind from the middle to both sides, which can drive the wind power generation device 4 to generate electricity. The along-bridge wind is the wind from both sides to the middle, which can directly act on the wind power generation device 4 to drive it to generate electricity.

[0039] On the other hand, the present invention provides a wind power combined wind resistant and stable bridge tower construction method, which is applied to the above wind power combined wind resistant and stable bridge tower structure, and the method comprises the following steps:

[0040] Step 1: Install the steel outer shell 101 and the steel inner shell 102 segments, and connect the steel outer shell 101 and the steel inner shell 102 through anchor rods 5 or perform on-site welding;

[0041] Step 2: Install the air nozzle 3. The air nozzle 3 and the steel housing 101 are connected by high-strength bolts or welded on site;

[0042] Step 3: Install the wind power generation device 4 on the leeward side of the steel housing 101, and lay out the wind power generation wires and batteries;

[0043] Step 4: hoist a steel cage between the steel outer shell 101 and the steel inner shell 102 , and then pour concrete between the steel outer shell 101 and the steel inner shell 102 .

[0044] The working principle of this embodiment is as follows: when the cross-bridge wind blows through the combined bridge tower 1, it is dispersed by the wind nozzle 3, which greatly reduces the static wind load on the side of the combined bridge tower 1. The combined bridge tower 1 adopts a steel-concrete composite section with large lateral stiffness, which reduces the wind-induced vibration effect of the bridge tower. The crossbeam 2 connects the two combined bridge towers 1, so that the two combined bridge towers 1 form a whole to jointly resist the wind load. After the cross-bridge wind is dispersed by the wind nozzle 3, a high-pressure area is formed in the middle of the two combined bridge towers 1, forming wind from the middle to both sides, driving the wind generator 4 to generate electricity. The along-bridge wind is wind from both sides to the middle, which directly acts on the wind generator 4 to drive the wind generator 4 to generate electricity.

[0045] Embodiment 2, as Figures 5 to 8As shown, based on the first embodiment, the anchor rod 5 includes a connecting rod 501, a first thread 502 is provided on the connecting rod 501, and two fastening nuts 503 are threadedly connected to the first thread 502. By fixing the two ends of the anchor rod 5 to the steel outer shell 101 and the steel inner shell 102 respectively, the steel outer shell 101 and the steel inner shell 102 can be fixedly connected by the anchor rod 5. When the steel inner shell 102 is fixedly connected to one end of the anchor rod 5, the anchor rod 5 can be fixed to the steel outer shell 101 and the steel inner shell 102 by rotating the fastening nut 503, and the steel outer shell 101 and the steel inner shell 102 are provided with a connecting hole for the anchor rod 5 to pass through.

[0046] Furthermore, a reducing assembly is provided at the end of the anchor rod 5, and the reducing assembly adjusts the diameter of one end of the anchor rod 5. Since one end of the anchor rod 5 needs to pass through the steel outer shell 101 and the steel inner shell 102, and enter the interior of the steel inner shell 102, it is not convenient for the anchor rod 5 to be fixedly connected with the steel inner shell 102. By setting the reducing assembly, the anchor rod 5 can be expanded after passing through the connection hole on the steel inner shell 102, so that the expanded anchor rod 5 cannot pass through the connection hole on the steel inner shell 102, thereby facilitating the fixed connection between the steel inner shell 102 and the anchor rod 5.

[0047] Among them, the reducing assembly includes an adjusting rod 504 installed inside the connecting rod 501, and a second thread 509 is provided on the adjusting rod 504. The adjusting rod 504 is threadedly connected to the connecting rod 501 through the second thread 509. A bolt head 510 is fixedly installed on the adjusting rod 504, and a connecting plate 505 is rotatably installed on the adjusting rod 504. A plurality of first connecting rods 506 are rotatably installed on the connecting plate 505, and a connecting block 507 is rotatably installed on the first connecting rod 506. A second connecting rod 508 is rotatably installed on the connecting block 507, and the second connecting rod 508 is rotatably connected to the connecting rod 501. After one end of the anchor rod 5 is passed through the rising connecting hole of the steel inner shell 102, the bolt head 510 is rotated to drive the adjusting rod 504 to rotate. Under the action of the second thread 509 being threadedly connected with the connecting rod 501, the adjusting rod 504 will be driven to move along its axis, and then the connecting disk 505 rotatably connected thereto can be driven to move. When the connecting disk 505 moves in the direction close to the connecting rod 501, it will drive multiple first connecting rods 506 to rotate. Under the action of the connecting block 507, the second connecting rod 508 will rotate synchronously. Under the action of the second connecting rod 508 and the first connecting rod 506, the connecting block 507 will expand outward, thereby effectively increasing the diameter of the end of the anchor rod 5, so that the end of the anchor rod 5 cannot pass through the connecting hole on the steel inner shell 102, thereby making it easier for the anchor rod 5 to be fixedly connected to the steel inner shell 102.

[0048] Among them, a plurality of support blocks 6 are slidably mounted on the connecting rod 501, a conical block 601 is rotatably mounted on the adjusting rod 504, the support block 6 is slidably connected to the conical block 601, and a limit plate 602 is fixedly mounted on the adjusting rod 504. Since a protrusion is provided at the rotation connection between the first connecting rod 506 and the connecting plate 505, and a protrusion is provided at the rotation connection between the second connecting rod 508 and the connecting rod 501, the connecting hole on the steel inner shell 102 cannot be fitted with the anchor rod 5, which is not conducive to the tight connection between the anchor rod 5 and the steel inner shell 102.

[0049] Furthermore, when the adjusting rod 504 moves along the axis, it will drive the conical block 601 to move, and the moving conical block 601 will drive multiple support blocks 6 to expand outward. Through the close contact between the support blocks 6 and the connecting holes on the steel inner shell 102, the tightness between the anchor rod 5 and the steel inner shell 102 can be effectively improved.

[0050] The working principle of this embodiment is as follows: after one end of the anchor rod 5 is passed through the connection hole of the steel inner shell 102, the bolt head 510 is rotated to drive the adjusting rod 504 to rotate, and the adjusting rod 504 is driven to move along its axis under the action of the second thread 509 being threadedly connected with the connecting rod 501, and then the connecting plate 505 rotatably connected thereto can be driven to move, and when the connecting plate 505 moves toward the direction close to the connecting rod 501, under the action of the second connecting rod 508 and the first connecting rod 506, the connecting block 507 will expand outward, and then the diameter of the end of the anchor rod 5 can be effectively increased, so that the end of the anchor rod 5 cannot pass through the connection hole on the steel inner shell 102, and then the anchor rod 5 is convenient for the steel inner shell 102 to be fixedly connected. Then, the fastening nut 503 is rotated to fix the anchor rod 5 on the steel outer shell 101 and the steel inner shell 102.

[0051] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A wind-power combined wind-resistant and stable bridge tower structure, comprising two combined bridge towers (1), wherein a crossbeam (2) is fixedly installed between two adjacent combined bridge towers (1), characterized in that: Also includes: A wind nozzle (3) fixedly mounted on the combined bridge tower (1), and wind power generation devices (4) fixedly mounted on both sides of the combined bridge tower (1); The combined bridge tower (1) comprises a steel outer shell (101) and a steel inner shell (102) located inside the steel outer shell (101); the steel outer shell (101) and the steel inner shell (102) are fixedly connected via an anchor rod (5); a diameter reducing assembly is provided at the end of the anchor rod (5); and the diameter reducing assembly is used to adjust the diameter of one end of the anchor rod (5).

2. The wind-power combined wind-resistant and stable bridge tower structure according to claim 1, characterized in that: Concrete (103) is poured between the steel outer shell (101) and the steel inner shell (102), and the thickness of the steel outer shell (101) is greater than that of the steel inner shell (102).

3. The wind-power combined wind-resistant and stable bridge tower structure according to claim 2 is characterized in that: Steel bars are arranged longitudinally and transversely inside the concrete (103).

4. The wind-power combined wind-resistant and stable bridge tower structure according to claim 3 is characterized in that: The steel inner shell (102) is a rectangular square tube, the steel outer shell (101) is a special-shaped square tube, and the steel outer shell (101) is provided with a cut corner (104) on the outer windward side.

5. The wind-power combined wind-resistant and stable bridge tower structure according to claim 4, characterized in that: The wind nozzle (3) is composed of two steel plates (301), and the steel plates (301) are connected to the outer windward side of the combined bridge tower (1) and fit with the cut corners (104) on the steel shell (101).

6. The wind-power combined wind-resistant and stable bridge tower structure according to claim 5, characterized in that: The wind power generation device (4) is installed inside the combined bridge tower (1) and is perpendicular to the combined bridge tower (1).

7. The wind-power combined wind-resistant and stable bridge tower structure according to claim 6, characterized in that: The anchor rod (5) comprises a connecting rod (501), the connecting rod (501) is provided with a first thread (502), and two fastening nuts (503) are threadedly connected to the first thread (502).

8. The wind-power combined wind-resistant and stable bridge tower structure according to claim 7, characterized in that: The reducer assembly comprises an adjusting rod (504) installed inside a connecting rod (501), the adjusting rod (504) being provided with a second thread (509), the adjusting rod (504) being threadably connected to the connecting rod (501) via the second thread (509), a bolt head (510) being fixedly installed on the adjusting rod (504), a connecting plate (505) being rotatably installed on the adjusting rod (504), a plurality of first connecting rods (506) being rotatably installed on the connecting plate (505), a connecting block (507) being rotatably installed on the first connecting rod (506), a second connecting rod (508) being rotatably installed on the connecting block (507), and the second connecting rod (508) being rotatably connected to the connecting rod (501).

9. The wind-power combined wind-resistant and stable bridge tower structure according to claim 8, characterized in that: A plurality of support blocks (6) are slidably mounted on the connecting rod (501), a conical block (601) is rotatably mounted on the adjusting rod (504), the support block (6) is slidably connected to the conical block (601), and a limiting plate (602) is fixedly mounted on the adjusting rod (504).

10. A method for constructing a wind-power combined wind-resistant and stable bridge tower, applied to the wind-power combined wind-resistant and stable bridge tower structure according to any one of claims 1 to 9, the method comprising the following steps: Step 1: installing the steel outer shell (101) and the steel inner shell (102) segments, and connecting the steel outer shell (101) and the steel inner shell (102) by anchor rods (5) or welding on site; Step 2: Install the air nozzle (3), and connect the air nozzle (3) and the steel housing (101) with high-strength bolts or on-site welding; Step 3: Install the wind power generation device (4) on the leeward side of the steel housing (101), and lay out wind power generation wires and batteries; Step 4: hoisting a steel cage between the outer steel shell (101) and the inner steel shell (102), and then pouring concrete between the outer steel shell (101) and the inner steel shell (102).

Images