Steel tower vertical rotating body outer rotating hinge structure and construction method

Abstract

The invention discloses a steel tower vertical rotating body outer rotating hinge structure and a construction method, and relates to the field of bridge construction. The outer rotating hinge structure of the vertical rotating body of the steel tower comprises a concrete foundation, a lower rotating hinge with one side connected to the steel tower and an upper rotating hinge with one side connected to the steel tower. The top of the concrete foundation is connected with a plurality of concrete columns and steel pipes arranged on the concrete columns in a sleeving mode, the top ends of the steel pipes are connected with sealing plates, and the outer walls of the steel pipes are connected with grouting pipes. The bottom surface of the lower rotating hinge is obliquely arranged relative to the horizontal plane and is connected with wedge blocks in one-to-one correspondence with the concrete columns, and the bottom surfaces of the wedge blocks are horizontally arranged and supported at the tops of the corresponding sealing plates; the bottom of the upper rotating hinge is hinged to the top of the lower rotating hinge through a pin shaft. A concrete foundation and a concrete column connected with the concrete foundation are used for supporting a wedge block, the wedge block supports a lower rotating hinge and an upper rotating hinge which are hinged to each other, borne vertical stress is transmitted to a bridge floor through the concrete column and the concrete foundation, horizontal stress transmission is avoided, and therefore the safety of rotating construction is guaranteed.

Description

Technical Field

[0001] This application relates to the field of bridge construction, and more specifically, to a steel tower vertical rotating external hinge structure and its construction method. Background Technology

[0002] Traditional methods of high-altitude welding and segmented hoisting using tower cranes for steel bridge tower construction suffer from high operational risks, difficulty in controlling the bridge's alignment, challenges in ensuring welding quality, long construction periods, and significant disruption to the space beneath the bridge. The vertical rotation method for bridge towers, on the other hand, involves horizontally assembling the tower at a low position (ground or bridge deck) and then vertically rotating it to the designed location using a traction system. This method effectively overcomes the aforementioned drawbacks and is particularly suitable for engineering projects spanning deep valleys, rapids, busy traffic lines, or those subject to aviation height restrictions.

[0003] The hinge system is a key component of the vertical rotation construction of bridge towers. It is usually composed of a lower hinge seat and an upper hinge seat connected by a pin. It requires extremely high processing and installation precision. Since the hinge is located at the root of the bridge tower and connected to the tower wall, there is usually no space inside the tower root for welding reinforcement materials. As a result, the tower wall is easily damaged during the rotation process due to the huge concentrated force and bending moment, which poses a great safety risk. Summary of the Invention

[0004] The purpose of this application is to provide a steel tower vertical rotation external hinge structure and construction method, which can transfer the vertical stress borne by the lower and upper hinges to the bridge deck and avoid the transfer of horizontal stress, thus ensuring the safety of the rotation construction.

[0005] This application is implemented as follows: This application provides a steel tower vertical rotating external hinge structure, which includes: The concrete foundation has multiple concrete columns connected to the top and steel pipes respectively fitted onto each concrete column. The top of the steel pipe is connected to a sealing plate, and the outer wall of the steel pipe is connected to a grouting pipe. The lower hinge is connected to the steel tower on one side. Its bottom surface is inclined to the horizontal plane and connected to the slab blocks that correspond to each concrete column. The bottom surface of the slab blocks is horizontal and supported on the top of the corresponding sealing plate. The upper hinge is connected to the steel tower on one side, and its bottom is hinged to the top of the lower hinge by a pin.

[0006] In some alternative implementations, at least one lifting beam is connected to the outer wall of the steel pipe, and jacks for driving the lifting beams are connected to the concrete foundation.

[0007] In some alternative implementations, an exhaust pipe is attached to the outer wall of the steel pipe.

[0008] In some alternative implementations, the top surface of the sealing plate is connected to a first stainless steel plate, and the bottom surface of the slab is connected to a second stainless steel plate that slides in cooperation with the corresponding first stainless steel plate.

[0009] In some alternative embodiments, a lubricating oil layer is provided between the first stainless steel plate and the second stainless steel plate.

[0010] This application also provides a construction method for a steel tower vertical rotating external hinge structure, which includes the following steps: Constructing concrete foundations; Connect one side of the upper hinge and the lower hinge to the steel tower respectively, and hinge the bottom of the upper hinge and the top of the lower hinge together by a pin. Multiple horizontally arranged slabs are constructed at the bottom of the lower hinge; Steel pipes corresponding to the slabs are installed on the concrete foundation, and the top of the steel pipes is connected to a sealing plate. The driving steel pipe rises to the sealing plate and slides into contact with the bottom surface of the corresponding slab block; After setting up formwork between the outside of the steel pipe and the concrete foundation, concrete is poured into the steel pipe to obtain a concrete column. Remove the formwork.

[0011] In some alternative implementations, a second stainless steel plate is connected to the bottom surface of the slab during construction, and a first stainless steel plate is connected to the top surface of the sealing plate during steel pipe installation. The first and second stainless steel plates slide together when the steel pipe is driven to rise.

[0012] In some alternative implementations, when the first stainless steel plate and the second stainless steel plate slide together as the driving steel pipe rises, lubricating oil is applied between the first stainless steel plate and the second stainless steel plate.

[0013] In some alternative implementations, concrete is poured into the steel pipe using a grouting pipe connected to the steel pipe to obtain a concrete column, and venting is performed using an venting pipe connected to the steel pipe.

[0014] In some alternative implementations, when driving the steel pipe to rise, at least one lifting beam is connected to the outer wall of the steel pipe, and jacks are installed between the concrete foundation and the lifting beam to control the lifting beam and the steel pipe to rise.

[0015] The beneficial effects of this application are as follows: The external hinge structure for vertical tower rotation provided by this application includes a concrete foundation, a lower hinge connected to the steel tower on one side, and an upper hinge connected to the steel tower on the other side; multiple concrete columns are connected to the top of the concrete foundation, and steel pipes are respectively sleeved on each concrete column. A sealing plate is connected to the top of the steel pipe, and a grouting pipe is connected to the outer wall of the steel pipe; the bottom surface of the lower hinge is inclined to the horizontal plane and connected to a bollard corresponding to each concrete column. The bottom surface of the bollard is horizontally arranged and supported on the top of the corresponding sealing plate; the bottom of the upper hinge is hinged to the top of the lower hinge by a pin. The external hinge structure and construction method for vertical tower rotation provided by this application use a concrete foundation and concrete columns connected to the concrete foundation to support the bollards, so that the bollards support the mutually hinged lower and upper hinges and transfer the vertical stress borne to the bridge deck through the concrete columns and concrete foundation, while avoiding horizontal stress transfer, thereby ensuring the safety of the rotation construction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the connection between the external hinge structure of the steel tower vertical rotation and the steel tower, provided in an embodiment of this application. Figure 2 For along Figure 1 Schematic diagram of the cross-sectional structure along section AA in the middle; Figure 3 For along Figure 1 Schematic diagram of the cross-sectional structure along the BB section line; Figure 4 This is a partially enlarged structural diagram of the steel tower vertical rotating external hinge structure provided in the embodiments of this application, showing the connection of the slab block to the lower hinge; Figure 5 This is a schematic diagram from the first perspective of the steel tower vertical rotation external hinge structure construction method provided in this application embodiment, in which the jack pushes the lifting beam and steel pipe to rise, so that the first stainless steel plate and the second stainless steel plate press against each other and then the template is installed. Figure 6 This is a second-view structural diagram of the steel tower vertical rotation external hinge structure construction method provided in this application embodiment, in which the jack pushes the lifting beam and steel pipe to rise, so that the first stainless steel plate and the second stainless steel plate press against each other and the template is installed.

[0018] In the diagram: 100, concrete foundation; 110, concrete column; 120, steel pipe; 130, sealing plate; 140, grouting pipe; 150, lifting beam; 160, jack; 170, exhaust pipe; 180, first stainless steel plate; 190, second stainless steel plate; 200, lower hinge; 210, slab block; 300, upper hinge; 400, pin; 410, formwork; 500, steel tower. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] The following detailed description of the features and performance of the steel tower vertical rotating external hinge structure and construction method of this application, in conjunction with embodiments, provides further insight into their characteristics and performance.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the embodiment of this application, a steel tower vertical rotating external hinge structure is provided, which includes a concrete foundation 100 and a lower hinge 200 and an upper hinge 300 connected to the outer wall of the steel tower 500 on one side. Six concrete columns 110 are connected to the top of the concrete foundation 100. A steel pipe 120 is fitted onto each concrete column 110. A sealing plate 130 that presses against the top surface of the concrete column 110 is connected to the top of the steel pipe 120. A first stainless steel plate 180 is connected to the top surface of the sealing plate 130. A grouting pipe 140 and an exhaust pipe 170 are connected to the outer wall of the steel pipe 120. The bottom of the upper hinge 300 is hinged to the top of the lower hinge 200 by a pin 400. The bottom surface of the hinge 200 is inclined to the horizontal plane and connected to the spur blocks 210 corresponding to each concrete column 110. The bottom surface of the spur blocks 210 is horizontally arranged and connected to the second stainless steel plates 190 that slide in cooperation with the corresponding first stainless steel plates 180. A lubricating oil layer is provided between the first stainless steel plates 180 and the second stainless steel plates 190. The outer wall of each steel pipe 120 is connected to two symmetrically arranged lifting beams 150. The concrete foundation 100 is connected to the jacks 160 corresponding to each lifting beam 150. The top and bottom of the jacks 160 are connected to the corresponding lifting beams 150 and the concrete foundation 100, respectively.

[0028] like Figure 5 and Figure 6 As shown in the embodiments of this application, a construction method for the above-mentioned steel tower vertical rotating external hinge structure is also provided, which includes the following steps: Step 1: Construct a concrete foundation 100 on the bridge deck to the side of the steel tower 500, so that the size of the concrete foundation 100 can withstand the vertical force transmitted from the steel pipe 120 and the concrete column 110. Step 2: Connect one side of the upper hinge 300 and the lower hinge 200 to the steel tower 500 respectively, and hinge the bottom of the upper hinge 300 and the top of the lower hinge 200 through the pin 400. Step 3: Construct six horizontally arranged slab blocks 210 at the bottom of the lower hinge 200. The bottom surface of each slab block 210 is horizontally arranged and connected to the second stainless steel plate 190. Apply grease to the bottom surface of the second stainless steel plate 190. Step 4: Install steel pipes 120 corresponding to the slab blocks 210 one by one on the concrete foundation 100, and connect a sealing plate 130 to the top of each steel pipe 120. Connect a first stainless steel plate 180 to the top surface of the sealing plate 130 and apply grease to the top surface of the first stainless steel plate 180. Connect a grouting pipe 140 and an exhaust pipe 170 to the top side wall of each steel pipe 120. The inlets of the grouting pipe 140 and the exhaust pipe 170 are higher than the sealing plate 130. Connect lifting beams 150 to both sides of the bottom of each steel pipe 120. Set a jack 160 between each lifting beam 150 and the concrete foundation 100. Step 5: Control each jack 160 to push the corresponding lifting beam 150 to drive each steel pipe 120 to rise until the first stainless steel plate 180 on the top of each steel pipe 120 and the second stainless steel plate 190 on the bottom of the corresponding slab block 210 press against each other. Step 6: Install a template 410 on the top surface of the concrete foundation 100, which is fitted over the outside of the steel pipe 120. The height of the template 410 is higher than the gap between the bottom of the steel pipe 120 and the top surface of the concrete foundation 100. Pour micro-expansion fine stone concrete into the steel pipe 120 through the grouting pipe 140 to obtain the concrete column 110. Exhaust the gas during grouting through the exhaust pipe 170. During the pouring process, ensure that the jack 160 keeps the first stainless steel plate 180 at the top of the steel pipe 120 tightly against the second stainless steel plate 190 at the bottom of the slab block 210. Step 7: After the concrete column 110 has solidified, remove the lifting beam 150, jack 160 and formwork 410 to complete the construction.

[0029] The steel tower vertical rotating external hinge structure and construction method provided in this application embodiment use a concrete foundation 100 to support each concrete column 110 and steel pipe 120, and allow the mutually hinged lower hinge 200 and upper hinge 300 to be supported on the top of each concrete column 110 by each spur block 210 connected to the bottom of the lower hinge 200. Thus, the vertical load borne by the lower hinge 200 and upper hinge 300 is sequentially transferred to the bridge deck through each spur block 210, each concrete column 110 and steel pipe 120, and the concrete foundation 100. At the same time, since the sealing plate 130 at the top of the steel pipe 120 is connected to a first stainless steel plate 180, and the bottom surface of the spur block 210 is horizontally arranged and connected to a second stainless steel plate 190 that slides in cooperation with the corresponding first stainless steel plate 180, the steel pipe 120 and the spur block 210 can slide freely in the horizontal direction through the sliding cooperation of the first stainless steel plate 180 and the second stainless steel plate 190 to avoid the transmission of horizontal loads, thereby improving the overall structural stability of the steel tower vertical rotating external hinge structure.

[0030] The construction method for the external hinge structure of the steel tower vertical rotating structure provided in this application embodiment solves the construction problem of the connection between the hinge and the bridge deck. Since it is difficult to guarantee the size of the construction gap between the hinge and the bridge deck, and the displacement of the hinge during construction is only a few millimeters, the displacement is very small. If there is a gap, it is impossible to transfer the force of the hinge to the bridge deck. The construction method provided in this application embodiment first installs the steel pipe 120 corresponding to the slab block 210 on the concrete foundation 100. Then, the jack 160 is used to push the lifting beam 150 to raise the steel pipe 120 until the first stainless steel plate 180 at the top of the steel pipe 120 and the second stainless steel plate 190 corresponding to the bottom surface of the slab block 210 press against each other. Then, the template 410 sleeved on the outside of the steel pipe 120 is installed on the top surface of the concrete foundation 100 to pour concrete columns 110 supporting the slab block 210. Thus, the concrete columns 110 are constructed in a limited space to stably support the slab block 210 and the upper hinge 300 and lower hinge 200 that are hinged to each other.

[0031] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A steel tower vertical rotating external hinge structure, characterized in that, It includes: A concrete foundation, with multiple concrete columns connected to the top and steel pipes respectively fitted onto each of the concrete columns. The top of each steel pipe is connected to a sealing plate, and the outer wall of the steel pipe is connected to a grouting pipe. The lower hinge is connected to the steel tower on one side. Its bottom surface is inclined to the horizontal plane and connected to the slab blocks that correspond one-to-one with each of the concrete columns. The bottom surface of the slab blocks is horizontally arranged and supported on the top of the corresponding sealing plate. The upper hinge is connected to the steel tower on one side, and its bottom is hinged to the top of the lower hinge via a pin.

2. The external hinge structure for vertical rotation of the steel tower according to claim 1, characterized in that, The outer wall of the steel pipe is connected to at least one lifting beam, and the concrete foundation is connected to jacks for driving the lifting beams up and down.

3. The external hinge structure for vertical rotation of the steel tower according to claim 1, characterized in that, An exhaust pipe is connected to the outer wall of the steel pipe.

4. The external hinge structure for vertical rotation of the steel tower according to claim 1, characterized in that, The top surface of the sealing plate is connected to a first stainless steel plate, and the bottom surface of the slab is connected to a second stainless steel plate that slides in cooperation with the corresponding first stainless steel plate.

5. The external hinge structure for vertical rotation of the steel tower according to claim 4, characterized in that, A lubricating oil layer is provided between the first stainless steel plate and the second stainless steel plate.

6. A construction method for a steel tower vertical rotating external hinge structure, characterized in that, It includes the following steps: Constructing concrete foundations; One side of the upper hinge and the lower hinge are respectively connected to the steel tower, and the bottom of the upper hinge and the top of the lower hinge are hinged by a pin. Multiple horizontally arranged slabs are constructed at the bottom of the lower hinge; A steel pipe corresponding to each of the slab blocks is installed on the concrete foundation, and a sealing plate is connected to the top of the steel pipe. The steel pipe is driven to rise to the sealing plate and slide into contact with the bottom surface of the corresponding slab block; After setting up formwork between the outside of the steel pipe and the concrete foundation, concrete is poured into the steel pipe to obtain a concrete column. Remove the formwork.

7. The construction method of the external hinge structure for a vertically rotating steel tower according to claim 6, characterized in that, When constructing the slab, a second stainless steel plate is connected to the bottom surface of the slab. When installing the steel pipe, a first stainless steel plate is connected to the top surface of the sealing plate. When driving the steel pipe to rise, the first stainless steel plate and the second stainless steel plate slide together.

8. The construction method of the external hinge structure for a vertically rotating steel tower according to claim 7, characterized in that, When the steel pipe is driven to rise, and the first stainless steel plate and the second stainless steel plate slide together, lubricating oil is applied between the first stainless steel plate and the second stainless steel plate.

9. The construction method of the external hinge structure for vertical rotation of a steel tower according to claim 6, characterized in that, Concrete columns are formed by pouring concrete into the steel pipe using the grouting pipe connected to the steel pipe, and venting is performed using the venting pipe connected to the steel pipe.

10. The construction method of the external hinge structure for a vertically rotating steel tower according to claim 6, characterized in that, When driving the steel pipe to rise, at least one lifting beam is connected to the outer wall of the steel pipe, and a jack is installed between the concrete foundation and the lifting beam to control the jack to drive the lifting beam and the steel pipe to rise.

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