A temporary wind-resistant pier and method of use thereof

Abstract

The application provides a temporary wind-resistant pier and a use method thereof. The temporary wind-resistant pier is provided with a base platform and a pier body connected with each other as a main structure of the temporary wind-resistant pier, so that the stability of the temporary wind-resistant pier and the height of the pier body can meet the requirements, and a top connecting rod is detachably connected on the pier body, the upper end of the top connecting rod is used for being hinged with a steel beam section, the cantilever steel beam is constrained before strong wind according to weather forecast, and the wind-resistant stability of the cantilever steel beam under the condition of adverse wind load is effectively improved. In addition, the connecting piece is detachably arranged on the steel beam section, the top connecting rod can be separated from the pier body under the condition of small wind force, and the top connecting rod is detachably connected with the connecting piece after being rotated, the separation of the steel beam section and the main structure of the temporary wind-resistant pier can be rapidly realized, the temporary wind-resistant pier does not have adverse influence on the bridge construction, the bridge maintenance vehicle can pass through conveniently, and the overall construction efficiency and construction quality of the bridge can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of bridge construction auxiliary equipment technology, and more specifically, to a temporary wind-resistant pier and its usage method. Background Technology

[0002] During the cantilever installation of the main beam of a long-span cable-stayed bridge, as the length of the steel beam cantilever gradually increases, the stiffness and damping of the bridge structure are relatively low in the double cantilever construction state. The structure is more sensitive to the effects of wind loads. Strong winds exceeding a certain level will generate a large overturning moment or torque on the tower and beam, which may lead to damage to the tower and beam structure or even major safety accidents.

[0003] Therefore, in order to improve the wind resistance stability of the steel beam cantilever, temporary wind-resistant piers are usually set up below a suitable location on the steel beam segment during bridge construction. This can improve the stress condition of the tower and beam and enhance the wind resistance safety and stability of the steel beam cantilever construction.

[0004] After the temporary wind-resistant piers are anchored to the main beam, the temporary connection between the temporary wind-resistant piers and the steel beam segments is generally released only after the entire bridge is closed. Due to the additional constraints of the temporary wind-resistant piers, the structural stress system of the bridge changes during construction. In subsequent stages of steel beam installation, such as cable tensioning, bridge crane movement, and steel beam hoisting, this alters the bridge's alignment, cable tension, and internal forces within the steel beams, causing significant deviations from the target state. To ensure that the alignment, cable tension, and tower-beam internal forces reach or approach the ideal design state after the entire bridge is closed, multiple cable tension adjustments are required. Frequent cable tension adjustments are labor-intensive and time-consuming, impacting bridge construction efficiency and quality to some extent. Summary of the Invention

[0005] The problem solved by this invention is to improve the overall construction efficiency and quality of bridges while ensuring the wind resistance stability of cantilever steel beams under adverse wind loads.

[0006] To address the above problems, the present invention provides a temporary wind-resistant pier, comprising:

[0007] The base platform is used to be installed below the steel beam segment;

[0008] The pier body is set on the foundation platform;

[0009] A top connecting rod, one end of which is detachably connected to the pier body, and the other end of which is hinged to the steel beam segment;

[0010] A connector for detachable installation on the steel beam segment;

[0011] When the top connecting rod is separated from the pier body, the top connecting rod is used to rotate around the hinge point with the steel beam segment and is detachably connected to the connector.

[0012] Compared to existing technologies, the beneficial effects of the temporary wind-resistant pier of the present invention include: by setting a foundation platform as the supporting structure for the entire temporary wind-resistant pier, and setting the pier body on the foundation platform as the main structure of the temporary wind-resistant pier, the stability of the temporary wind-resistant pier and the pier height can be guaranteed to meet the requirements. At the same time, a top connecting rod can be detachably connected to the pier body, and the upper end of the top connecting rod is used to hinge with the steel beam segment. This allows the cantilever steel beam to be constrained before strong winds arrive according to weather forecasts, avoiding wind-induced vibrations of the large cantilever steel beam that could affect structural safety during strong winds, and effectively improving the wind resistance stability of the steel beam cantilever. Qualitatively, by detachably installing connectors on the steel beam segments, the top connecting rod can be separated from the pier body under low wind conditions and then detachably connected to the connector after rotation. This allows for rapid separation of the steel beam segment from the main structure of the temporary wind-resistant pier, avoiding adverse effects on the bridge's alignment, cable forces, and internal forces during subsequent steel beam segment installation processes such as cable tensioning, bridge crane movement, and steel beam hoisting. Furthermore, only the top connecting rod needs to be operated, effectively improving the construction efficiency of separating the temporary wind-resistant pier from the steel beam segment. Conversely, when connection is needed, simply separate the top connecting rod from the connector, rotate it, and reconnect it to the pier body, achieving rapid connection and separation of the temporary wind-resistant pier from the steel beam segment. This ensures the cantilever's wind resistance stability while facilitating control of the structural alignment and internal forces during construction, improving the installation accuracy of the bridge, and thus effectively enhancing the overall construction efficiency and quality of the bridge.

[0013] Optionally, the top connecting rod is a telescopic rod.

[0014] Optionally, the top connecting rod includes a lead screw, a square tube, a first connecting seat, a second connecting seat, and a connecting assembly. The lead screw is coaxially connected to the square tube and connected to the first connecting seat. The second connecting seat is disposed on the pier body. The first connecting seat is used for detachable connection with the second connecting seat or the connecting member. The square tube is used for hinged connection with the steel beam segment through the connecting assembly.

[0015] Optionally, the connecting assembly includes a third connecting seat, a fourth connecting seat, and a connecting plate. The third connecting seat is connected to the square tube, the fourth connecting seat is used to be mounted on the steel beam segment, and the two ends of the connecting plate are respectively hinged to the third connecting seat and the fourth connecting seat.

[0016] Optionally, the pier body includes multiple segments that are detachably connected end to end, with the segment closest to the foundation platform connected to the foundation platform, and the segment closest to the top connecting rod detachably connected to the top connecting rod.

[0017] Optionally, the pier body further includes a first longitudinal beam and a first transverse beam, both of which are disposed on the end face of the segment near the top connecting rod and are detachably connected to the top connecting rod.

[0018] Optionally, the foundation platform includes support piles, horizontal support rods, inclined support rods, a second crossbeam, and a second longitudinal beam. Multiple support piles are spaced apart and interconnected by the horizontal support rods. The two ends of the inclined support rods are respectively connected to two support piles. The second crossbeam and the second longitudinal beam are both located on the end faces of the support piles near the pier body and are both connected to the pier body.

[0019] Optionally, the connector is a hook, which is used for detachable installation on the steel beam segment and for detachable connection with the top connecting rod.

[0020] On the other hand, the present invention also provides a method for using a temporary wind-resistant pier, applied to the temporary wind-resistant pier described above, comprising:

[0021] A foundation platform is installed on the riverbed, with the upper end of the foundation platform above the river surface;

[0022] The pre-assembled pier body is hoisted onto the foundation platform and then connected to the foundation platform.

[0023] The pre-assembled top connecting rod is hoisted to the top of the pier body and detachably connected to the pier body;

[0024] The top connecting rod is hinged to the steel beam segment to complete the connection between the temporary wind-resistant pier and the steel beam segment;

[0025] The connector is detachably installed on the steel beam segment according to the length of the top connecting rod;

[0026] The top connecting rod is separated from the pier body, and the top connecting rod is driven to rotate around the hinge point with the steel beam segment, and is detachably connected to the connecting piece, thus completing the separation of the temporary wind-resistant pier from the steel beam segment.

[0027] Compared to existing technologies, the method of using the temporary wind-resistant piers of the present invention has the same beneficial effects as the temporary wind-resistant piers described above, and will not be repeated here.

[0028] Optionally, the method of using the temporary wind-resistant pier further includes:

[0029] When the temporary wind-resistant pier is connected to the steel beam segment, as the maintenance vehicle moves along the steel beam segment, the top connecting rod is separated from the pier body, the top connecting rod is driven to rotate around the hinge point with the steel beam segment, and is detachably connected to the connecting piece so that the maintenance vehicle can pass between the top connecting rod and the pier body. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the temporary wind-resistant pier from one perspective in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the connection between the top connecting rod and the connecting member in an embodiment of the present invention;

[0032] Figure 3 This is a structural schematic diagram of the temporary wind-resistant pier from another perspective in an embodiment of the present invention;

[0033] Figure 4 for Figure 3 An enlarged schematic diagram of A shown in the image;

[0034] Figure 5 This is a flowchart illustrating the method of using temporary wind-resistant piers in an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Foundation platform; 11-Support pile; 12-Horizontal support rod; 13-Inclined support rod; 14-Second crossbeam; 15-Second longitudinal beam; 2-Pier body; 21-Segment; 22-First longitudinal beam; 23-First crossbeam; 3-Top connecting rod; 31-Threaded rod; 32-Square tube; 33-First connecting seat; 34-Second connecting seat; 35-Connecting assembly; 351-Third connecting seat; 352-Fourth connecting seat; 353-Connecting hanging plate; 4-Connecting piece; 5-Steel beam segment; 6-Riverbed; 7-River surface; 8-Maintenance vehicle. Detailed Implementation

[0037] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] It should be noted that in the XYZ coordinate system provided herein, the positive direction of the X-axis represents the right, and the negative direction of the X-axis represents the left; the positive direction of the Y-axis represents the rear, and the negative direction of the Y-axis represents the front; the positive direction of the Z-axis represents the top, and the negative direction of the Z-axis represents the bottom. Furthermore, it should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein.

[0039] Currently, during the cantilever installation of the main girder of a long-span cable-stayed bridge, as the length of the steel beam cantilever gradually increases, the stiffness and damping of the bridge structure are relatively low in the double-cantilever construction state. The structure is more sensitive to the effects of wind loads. Strong winds exceeding a certain level will generate large overturning moments or torques on the towers and beams, which may lead to damage to the tower and beam structures or even major safety accidents. Therefore, when the double cantilever is large, safety measures, namely temporary wind-resistant piers, need to be set at appropriate locations in the side spans or middle spans within the navigation range during construction control. When the main girder is erected to this position, the main girder is vertically and laterally anchored to the temporary wind-resistant piers. Longitudinal displacement is allowed (to allow the beam to adapt to temperature changes). When unfavorable wind loads (strong winds) occur, the temporary wind-resistant piers elastically constrain the vertical and transverse displacements of the steel beam and the torsional displacement within the cross-section of the steel beam. The horizontal longitudinal displacement of the steel beam is not constrained by the temporary wind-resistant piers, which can improve the stress condition of the tower and beam and enhance the wind resistance stability of the structure.

[0040] After the temporary wind-resistant piers are anchored to the main beam, the temporary connection between the temporary wind-resistant piers and the steel beam cantilever is generally released only after the entire bridge is closed. Due to the additional constraints of the temporary wind-resistant piers, the stress system of the bridge structure is altered during construction. In subsequent stages of steel beam cantilever installation, such as cable tensioning, bridge crane movement, and steel beam hoisting, this alters the bridge's alignment, cable tension, and internal forces within the steel beam, causing significant deviations from the target state. To ensure that the alignment, cable tension, and tower-beam internal forces reach or approach the ideal design state after the entire bridge is closed, multiple cable tension adjustments are required. Frequent cable tension adjustments are labor-intensive and time-consuming, impacting bridge construction efficiency to some extent.

[0041] To address the aforementioned problems, one embodiment of the present invention provides a temporary wind-resistant pier, comprising: a foundation platform 1, which is used to be installed below a steel beam segment 5; a pier body 2, which is installed on the foundation platform 1; a top connecting rod 3, one end of which is detachably connected to the pier body 2, and the other end of which is used to be hinged to the steel beam segment 5; and a connector 4, which is used to be detachably installed on the steel beam segment 5. When the top connecting rod 3 is separated from the pier body 2, the top connecting rod 3 is used to rotate around the hinge point with the steel beam segment 5 and is detachably connected to the connector 4.

[0042] To avoid the adverse effects of temporary wind-resistant piers on bridge construction, an ideal design for temporary wind-resistant piers should allow for timely connection to the bridge beams based on wind forecasts, ensuring the wind resistance stability of the double cantilever bridge construction. After strong winds or gales, the anchorage connection to the main beams should be efficiently and quickly released to facilitate the control of structural alignment and internal forces during subsequent steel beam installation, without affecting the efficiency of steel beam installation.

[0043] Therefore, as Figure 1 and Figure 3 As shown, in this embodiment, a foundation platform 1 is set as the supporting structure for the entire temporary wind-resistant pier, ensuring the stability of the temporary wind-resistant pier during installation. The foundation platform 1 is set below the steel beam segment 5, facilitating the connection between the temporary wind-resistant pier and the steel beam segment 5. A pier body 2 is set on the foundation platform 1 as the main structure of the temporary wind-resistant pier, ensuring that the height and strength of the temporary wind-resistant pier meet the requirements, so as to facilitate the connection between the temporary wind-resistant pier and the steel beam segment 5. A top connecting rod 3 is detachably connected to the pier body 2, and the upper end of the top connecting rod 3 is used to hinge with the steel beam segment 5. In this way, the structure composed of the foundation platform 1, the pier body 2, and the top connecting rod 3 can be effectively connected to the steel beam segment 5. According to the weather forecast, the large cantilever steel beam can be constrained before the arrival of strong winds (unfavorable wind loads), avoiding wind-induced vibrations that affect the structural safety of the large cantilever steel beam during strong winds, and effectively improving the wind resistance stability of the steel beam cantilever.

[0044] In addition, such as Figure 1 and Figure 2As shown, a connector 4 is installed, which is detachably mounted on the steel beam segment 5. When the wind force is low, the top connecting rod 3 can be separated from the pier body 2, and the top connecting rod 3 can be rotated to move towards the connector 4. Finally, the end of the top connecting rod 3 is detachably connected to the connector 4. In this way, the steel beam segment 5 is separated from the main structure of the temporary wind-resistant pier. This avoids the temporary wind-resistant pier from having an adverse impact on the bridge alignment, cable force, and internal force of the steel beam during different working conditions such as cable tensioning, bridge crane forward movement, and steel beam hoisting during the subsequent installation of the steel beam segment. Moreover, only the top connecting rod 3 needs to be operated, which effectively improves the construction efficiency of separating the temporary wind-resistant pier from the steel beam segment 5. Correspondingly, when connection is required, simply separate the top connecting rod 3 from the connecting piece 4, rotate and move it to reconnect it with the pier body 2, so as to achieve the purpose of quick connection and separation between the temporary wind-resistant pier and the steel beam segment 5. While ensuring the wind-resistant stability of the bridge cantilever, it is also conducive to the control of the structural alignment and internal forces during construction, improving the installation accuracy of bridge construction, thereby effectively improving the overall construction efficiency and construction quality of the bridge.

[0045] It should be noted that in this embodiment, the connector 4 is detachably connected to the steel beam segment 5, and the connector 4 can be removed after the bridge steel structure is installed, which facilitates recycling.

[0046] It should be noted that, in this embodiment, as Figure 3 As shown, below a steel beam segment 5, there are two top connecting rods 3, two piers 2, and two foundation platforms 1, symmetrically arranged below the steel beam segment 5, with their centers corresponding to the center of the web reinforcement of the steel beam segment 5, so as to withstand concentrated loads and effectively enhance the tensile support effect of the temporary wind-resistant piers on the steel beam segment 5. Of course, in other embodiments of the present invention, other numbers of top connecting rods 3, piers 2, and foundation platforms 1 can be set as needed.

[0047] It should be noted that, as Figures 1 to 3 As shown, in this embodiment, the vertical direction is the Z-axis direction, and the horizontal direction is parallel to the XY plane.

[0048] It should be noted that, in this embodiment, as Figure 1 and Figure 2As shown, when the top connecting rod 3 is connected to the pier body 2, the length direction of the top connecting rod 3 is vertical. When the top connecting rod 3 is connected to the connector 4, the length direction of the top connecting rod 3 is horizontal. During the construction of the bridge steel structure, in order to ensure the normal construction of the bridge, a maintenance vehicle 8 is generally used to carry maintenance personnel to inspect the installed steel beam segment 5. The maintenance vehicle 8 is generally suspended below the steel beam segment 5 and performs maintenance by moving along the steel beam segment 5. When the maintenance vehicle 8 is performing maintenance, the top connecting rod 3 of the temporary wind-resistant pier in this embodiment can be detached from the pier body 2 and rotated to be detachably connected to the connector 4. In this way, the top connecting rod 3 can be changed from vertical to horizontal. The distance between the top connecting rod 3 and the pier body 2 can meet the movement needs of the maintenance vehicle 8, further improving the construction efficiency of the bridge. Of course, in other embodiments of the present invention, after the top connecting rod 3 is connected to the connecting piece 4, its length direction may also have a certain angle with the XY plane, as long as the space between the top connecting rod 3 and the pier body 2 meets the needs of the maintenance vehicle 8 to pass through.

[0049] Optionally, the top connecting rod 3 is a telescopic rod.

[0050] In this embodiment, the top connecting rod 3 is set as a telescopic rod. When installing the temporary wind-resistant pier, the length of the top connecting rod 3 can be adjusted according to the distance between the pier body 2 and the bottom surface of the steel beam segment 5, so that it can be adapted to the constraint needs of steel beam segments 5 of different heights.

[0051] For example, when constructing temporary wind-resistant piers in areas adjacent to waterways where clearance is limited, the length of the top connecting rod 3 can be adjusted according to the height requirements, effectively improving the problem of low construction efficiency of temporary wind-resistant piers when clearance is limited due to proximity to waterways.

[0052] Optionally, the top connecting rod 3 includes a threaded rod 31, a square tube 32, a first connecting seat 33, a second connecting seat 34, and a connecting assembly 35. The threaded rod 31 is coaxially connected to the square tube 32, and the threaded rod 31 is connected to the first connecting seat 33. The second connecting seat 34 is disposed on the pier body 2. The first connecting seat 33 is used for detachable connection with the second connecting seat 34 or the connecting piece 4. The square tube 32 is used for hinged connection with the steel beam segment 5 through the connecting assembly 35.

[0053] like Figure 1 , Figure 3 and Figure 4As shown, in this embodiment, a top connecting rod 3 is composed of a lead screw 31, a square tube 32, a first connecting seat 33, a second connecting seat 34, and a connecting assembly 35. The lead screw 31 and the square tube 32 are coaxially arranged. By rotating the lead screw 31, its length along the axial direction can be adjusted, thereby making the length of the entire top connecting rod 3 adjustable. At the same time, the lead screw 31 and the square tube 32 are coaxially connected, and the square tube 32 can share the axial compressive force on the lead screw 31, effectively improving the working stability of the lead screw 31 and ensuring that the structural strength of the entire top connecting rod 3 meets the requirements.

[0054] Meanwhile, the lower end of the lead screw 31 is connected to the first connecting seat 33, and the second connecting seat 34 is set on the pier body 2. The lead screw 31 can be detachably connected to the first connecting seat 33 and the second connecting seat 34. In this way, the top connecting rod 3 and the pier body 2 can be detachably connected. The first connecting seat 33 can also be used to detachably connect to the connecting piece 4. In this way, the top connecting rod 3 and the connecting piece 4 can be detachably connected.

[0055] In addition, the square tube 32 can be hinged to the steel beam segment 5 through the connecting component 35, thus realizing the hinge connection between the top connecting rod 3 and the steel beam segment 5.

[0056] It should be noted that the length adjustment range of the lead screw 31 is -300mm to +300mm.

[0057] It should be noted that in this embodiment, both the first connecting seat 33 and the second connecting seat 34 are provided with connecting holes, and the first connecting seat 33 and the second connecting seat 34 are detachably connected by pins that pass through the corresponding connecting holes.

[0058] It should be noted that in this embodiment, the connection between the second connecting seat 34 and the pier body 2, the connection between the first connecting seat 33 and the lead rod 31, and the connection between the lead rod 31 and the square tube 32 are all welded. The second connecting seat 34, the first connecting seat 33, the lead rod 31 and the square tube 32 are all steel structures.

[0059] Optionally, the connecting assembly 35 includes a third connecting seat 351, a fourth connecting seat 352, and a connecting plate 353. The third connecting seat 351 is connected to the square tube 32, the fourth connecting seat 352 is used to be mounted on the steel beam segment 5, and the two ends of the connecting plate 353 are respectively hinged to the third connecting seat 351 and the fourth connecting seat 352.

[0060] like Figure 4As shown, in this embodiment, a connecting assembly 35 is formed by a third connecting seat 351, a fourth connecting seat 352, and a connecting plate 353. The third connecting seat 351 is connected to the upper end of the square tube 32, the fourth connecting seat 352 is set on the bottom wall of the steel beam segment 5, and the two ends of the connecting plate 353 are hinged to the third connecting seat 351 and the fourth connecting seat 352 respectively. In this way, the top connecting rod 3 can be hinged to the steel beam segment 5. At the same time, the connecting plate 353 can play a buffering role when the top connecting rod 3 receives the reaction force of the bridge, effectively reducing the damage of the bridge reaction force to the top connecting rod 3 and improving the working stability of the top connecting rod 3.

[0061] It should be noted that in this embodiment, the third connecting seat 351, the fourth connecting seat 352 and the connecting plate 353 are all provided with corresponding connecting holes, and detachable connection is achieved by the corresponding pins passing through the connecting holes. The third connecting seat 351, the fourth connecting seat 352 and the connecting plate 353 are all steel structures.

[0062] It should be noted that in this embodiment, the connection between the third connecting seat 351 and the square tube 32, and the connection between the fourth connecting seat 352 and the steel beam segment 5, are all welded.

[0063] Optionally, the pier body 2 includes multiple segments 21 that are detachably connected end to end. The segments 21 closer to the foundation platform 1 are connected to the foundation platform 1, and the segments 21 closer to the top connecting rod 3 are detachably connected to the top connecting rod 3.

[0064] In this embodiment, as Figure 1 and Figure 2 As shown, the main structure of the pier body 2 is composed of multiple detachable segments 21. The lowermost segment 21 is connected to the foundation platform 1, and the uppermost segment 21 is detachably connected to the top connecting rod 3. In this way, when installing the temporary wind-resistant pier, the segments 21 can be pre-assembled into one or more combined segments and then hoisted onto the foundation platform 1 in sequence. Since the segments 21 are detachably connected, both pre-assembly and assembly between combined segments are relatively convenient, which can effectively improve the installation efficiency of the main structure of the pier body 2 and facilitate the rapid assembly of the temporary wind-resistant pier.

[0065] It should be noted that in this embodiment, segment 21 is a standard tower crane segment, which can effectively ensure the structural strength of segment 21. Connecting holes are provided between segments 21, and detachable connection is achieved by pins that pass through the corresponding connecting holes.

[0066] Optionally, the pier body 2 also includes a first longitudinal beam 22 and a first transverse beam 23. The first longitudinal beam 22 and the first transverse beam 23 are both located on the end face of the segment 21 near the top connecting rod 3, and are detachably connected to the top connecting rod 3.

[0067] To ensure the stability of the connection between the pier body 2 and the top connecting rod 3, in this embodiment, as follows: Figure 1 and Figure 3 As shown, a first crossbeam 23 and a first longitudinal beam 22 are staggered on the upper end face of the uppermost segment 21 to ensure the structural strength of the end face of segment 21, while facilitating detachable connection with the top connecting rod 3.

[0068] It should be noted that in this embodiment, the first crossbeam 23 and the first longitudinal beam 22 are both fixedly installed on the end face of the segment 21 by welding, and both the first longitudinal beam 22 and the first crossbeam 23 are steel structures.

[0069] Optionally, the foundation platform 1 includes support piles 11, horizontal support rods 12, inclined support rods 13, a second crossbeam 14, and a second longitudinal beam 15. Multiple support piles 11 are spaced apart and connected to each other through the horizontal support rods 12. The two ends of the inclined support rods 13 are respectively connected to two support piles 11. The second crossbeam 14 and the second longitudinal beam 15 are both located on the end face of the support piles 11 near the pier body 2 and are both connected to the pier body 2.

[0070] To ensure the stability of the basic platform 1, such as Figure 1 and Figure 3 As shown, in this embodiment, multiple support piles 11 are spaced apart as the main support of the foundation platform 1, and multiple horizontal support rods 12 are set to connect the multiple support piles 11 to form a whole to ensure the structural strength in the horizontal direction. At the same time, multiple inclined support rods 13 are set between two support piles 11 to improve the structural strength in the horizontal and vertical directions of the foundation platform 1.

[0071] In addition, a second horizontal beam 14 and a second vertical beam 15 are provided on the upper end face of the support pile 11 and connected to the pier body 2, which effectively improves the support stability and connection stability of the pier body 2.

[0072] It should be noted that in this embodiment, the support pile 11 is fixedly connected to the horizontal support rod 12, the inclined support rod 13, the second crossbeam 14 and the second longitudinal beam 15 by welding. The support pile 11 is a steel pipe pile, and the horizontal support rod 12, the inclined support rod 13, the second crossbeam 14 and the second longitudinal beam 15 are all steel structures.

[0073] It should be noted that the installation process of the foundation platform 1 includes: When installing the first 2-3 steel beam segments 5, a crane vessel is used to drive support piles 11 under the steel beam segment 5 using a vibratory hammer. The driven support piles 11 are marked with markings in meters on their perimeter before lifting to facilitate calculation and verification of their penetration depth. During the driving process, limiting frames can be installed to restrict the deviation and tilting of the support piles 11, depending on the difficulty of driving. Each pile should be driven in one continuous motion without interruption, with elevation control as the primary method. Verticality is monitored continuously using measuring instruments during the vibratory driving process. The above-water portion of the support piles 11 is welded with horizontal support rods 12, inclined support rods 13, a second crossbeam 14, and a second longitudinal beam 15.

[0074] It should be noted that, in this embodiment, the number of support piles 11 of the base platform 1 is at least four.

[0075] Optionally, the connector 4 is a hook for detachable installation on the steel beam segment 5 and for detachable connection with the top connecting rod 3.

[0076] To ensure a stable connection with the top connecting rod 3 while improving the ease of separation from it, in this embodiment, the connector 4 is a hook. The hook is detachably installed on the steel beam segment 5, and the end of the top connecting rod 3 can be hung on the hook, realizing a detachable connection between the top connecting rod 3 and the connector 4. At the same time, by rotating the top connecting rod 3, it can be separated from the hook, improving the ease of separation and thus improving the connection convenience of the temporary wind-resistant pier.

[0077] On the other hand, one embodiment of the present invention provides a method for using a temporary wind-resistant pier, applied to the aforementioned temporary wind-resistant pier, comprising: installing a foundation platform 1 on the riverbed 6, with the upper end of the foundation platform 1 above the river surface 7; hoisting the pre-assembled pier body 2 onto the foundation platform 1 and connecting the pier body 2 to the foundation platform 1; hoisting the pre-assembled top connecting rod 3 above the pier body 2 and detachably connecting the top connecting rod 3 to the pier body 2; hinge the top connecting rod 3 to the steel beam segment 5 to complete the connection between the temporary wind-resistant pier and the steel beam segment 5; detachably installing a connector 4 onto the steel beam segment 5 according to the length of the top connecting rod 3; separating the top connecting rod 3 from the pier body 2, driving the top connecting rod 3 to rotate around the hinge point with the steel beam segment 5, and detachably connecting it to the connector 4 to complete the separation between the temporary wind-resistant pier and the steel beam segment 5.

[0078] In this embodiment, as Figure 5 As shown in S1 to S6, the technical effects of the temporary wind-resistant piers are similar to those of the temporary wind-resistant piers described above, and will not be repeated here.

[0079] Optionally, the method of using the temporary wind-resistant pier also includes: when the temporary wind-resistant pier is connected to the steel beam segment 5, when the maintenance vehicle 8 moves along the steel beam segment 5, the top connecting rod 3 is separated from the pier body 2, the top connecting rod 3 is driven to rotate around the hinge point with the steel beam segment 5, and is detachably connected to the connecting piece 4 so that the maintenance vehicle 8 can pass between the top connecting rod 3 and the pier body 2.

[0080] In this embodiment, as Figure 1 and Figure 2 As shown, when the top connecting rod 3 is connected to the pier body 2, the length direction of the top connecting rod 3 is vertical. When the top connecting rod 3 is connected to the connector 4, the length direction of the top connecting rod 3 is horizontal. During the construction of the bridge steel structure, in order to ensure the normal construction of the bridge, a maintenance vehicle 8 is generally used to carry maintenance personnel to inspect the installed steel beam segment 5. The maintenance vehicle 8 is generally suspended below the steel beam segment 5 and moves along the track attached to the steel beam segment 5 to inspect the bridge. When the maintenance vehicle 8 is performing maintenance, the top connecting rod 3 of the temporary wind-resistant pier in this embodiment can be detached from the pier body 2 and rotated to be detachably connected to the connector 4. In this way, the top connecting rod 3 can be changed from vertical to horizontal. The distance between the top connecting rod 3 and the pier body 2 can meet the movement needs of the maintenance vehicle 8, further improving the construction efficiency of the bridge. Of course, in other embodiments of the present invention, after the top connecting rod 3 is connected to the connecting piece 4, its length direction may also have a certain angle with the XY plane, as long as the space between the top connecting rod 3 and the pier body 2 meets the needs of the maintenance vehicle 8 to pass through.

[0081] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. A temporary wind-resistant pier, characterized in that, include: A base platform (1) is provided for installation below the steel beam segment (5); Pier body (2), the pier body (2) is set on the foundation platform (1); Top connecting rod (3), one end of which is detachably connected to the pier body (2), and the other end of which is hinged to the steel beam segment (5) 6 Connector (4), the connector (4) being detachably mounted on the steel beam segment (5); When the top connecting rod (3) is separated from the pier body (2), the top connecting rod (3) is used to rotate around the hinge point with the steel beam segment (5) and is detachably connected to the connecting piece (4); The top connecting rod (3) includes a lead screw (31), a square tube (32), a first connecting seat (33), a second connecting seat (34), and a connecting assembly (35). The lead screw (31) is coaxially connected to the square tube (32). The lead screw (31) is connected to the first connecting seat (33). The second connecting seat (34) is disposed on the pier body (2). The first connecting seat (33) is used to detachably connect with the second connecting seat (34) or the connecting piece (4). The square tube (32) is used to be hinged to the steel beam segment (5) through the connecting assembly (35). The connecting assembly (35) includes a third connecting seat (351), a fourth connecting seat (352), and a connecting plate (353). The third connecting seat (351) is connected to the square tube (32), the fourth connecting seat (352) is used to be mounted on the steel beam segment (5), and the two ends of the connecting plate (353) are respectively hinged to the third connecting seat (351) and the fourth connecting seat (352).

2. The temporary wind-resistant pier according to claim 1, characterized in that, The top connecting rod (3) is a telescopic rod.

3. The temporary wind-resistant pier according to claim 1, characterized in that, The pier body (2) includes multiple segments (21) that can be detachably connected end to end. The segment (21) near the foundation platform (1) is connected to the foundation platform (1), and the segment (21) near the top connecting rod (3) is detachably connected to the top connecting rod (3).

4. The temporary wind-resistant pier according to claim 3, characterized in that, The pier body (2) also includes a first longitudinal beam (22) and a first transverse beam (23). The first longitudinal beam (22) and the first transverse beam (23) are both located on the end face of the segment (21) near the top connecting rod (3) and are detachably connected to the top connecting rod (3).

5. The temporary wind-resistant pier according to claim 1, characterized in that, The foundation platform (1) includes support piles (11), horizontal support rods (12), inclined support rods (13), a second crossbeam (14), and a second longitudinal beam (15). Multiple support piles (11) are spaced apart and connected to each other through the horizontal support rods (12). The two ends of the inclined support rods (13) are respectively connected to two support piles (11). The second crossbeam (14) and the second longitudinal beam (15) are both located on the end face of the support piles (11) near the pier body (2) and are both connected to the pier body (2).

6. The temporary wind-resistant pier according to any one of claims 1 to 5, characterized in that, The connector (4) is a hook, which is used to be detachably installed on the steel beam section (5) and to be detachably connected to the top connecting rod (3).

7. A method for using a temporary wind-resistant pier, characterized in that, The temporary wind-resistant piers applied as described in any one of claims 1 to 6 include: A foundation platform (1) is installed on the riverbed (6), with the upper end of the foundation platform (1) located above the river surface (7); The pre-assembled pier (2) is hoisted onto the foundation platform (1) and the pier (2) is connected to the foundation platform (1); The pre-assembled top connecting rod (3) is hoisted to the top of the pier body (2) and the top connecting rod (3) is detachably connected to the pier body (2); The top connecting rod (3) is hinged to the steel beam segment (5) to complete the connection between the temporary wind-resistant pier and the steel beam segment (5); According to the length of the top connecting rod (3), the connector (4) is detachably installed on the steel beam segment (5); Separate the top connecting rod (3) from the pier body (2), drive the top connecting rod (3) to rotate around the hinge point with the steel beam segment (5), and detachably connect it with the connecting piece (4) to complete the separation of the temporary wind-resistant pier from the steel beam segment (5).

8. The method of using the temporary wind-resistant pier according to claim 7, characterized in that, Also includes: When the temporary wind-resistant pier is connected to the steel beam segment (5), when the maintenance vehicle (8) moves along the steel beam segment (5), the top connecting rod (3) is separated from the pier body (2), the top connecting rod (3) is driven to rotate around the hinge point with the steel beam segment (5), and is detachably connected with the connecting piece (4) so ​​that the maintenance vehicle (8) can pass between the top connecting rod (3) and the pier body (2).

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