A support device for bridge rotation construction and a method of using the same

Abstract

The application discloses a support device for bridge swivel construction and a use method thereof, and belongs to the technical field of bridge construction. The support device for bridge swivel construction comprises upper supporting legs and lower supporting legs, and is detachably connected between the upper supporting legs and an upper rotating table, between the upper supporting legs and the lower supporting legs, and between the lower supporting legs and a lower bearing platform. A filling material is arranged between the upper supporting legs and the lower supporting legs, and the filling material can change from a solid state to a liquid state when heated. When the filling material is in the solid state, the support device plays a role in fixedly supporting a swivel bridge between the upper rotating table and the lower bearing platform. After the filling material is heated and melted into a liquid and flows away, the support device formed by reconnection of the upper supporting legs and the lower supporting legs plays a role in preventing lateral tilting of the supporting legs during bridge swivel. The support device for bridge swivel construction is integrated with temporary fixed support and supporting leg functions, can be removed and recycled after completion of bridge swivel, is green and environmentally friendly, and effectively saves the construction cost of the swivel bridge.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bridge construction, and particularly relates to a support device for bridge swivel construction and a method for using the same. BACKGROUND

[0002] A swivel bridge is a rotatable bridge form. Bridge swivel construction refers to a construction method in which a bridge structure is formed (poured or spliced) at a non-design axis position and then placed in position through swiveling. According to the rotating direction of the bridge structure, the bridge swivel construction can be divided into vertical swivel construction method, horizontal swivel construction method (referred to as vertical swivel method and horizontal swivel method), and a method combining horizontal swivel and vertical swivel, among which the horizontal swivel method is most commonly used.

[0003] A rotating system is a key equipment for horizontal swivel construction and is composed of an upper rotating disc and a lower rotating disc of a ball joint. The upper rotating disc supports rotating structures such as a pier body and a beam body, and the lower rotating disc is connected to the foundation to support and slide relative to the upper rotating disc. In order to ensure the safety during the implementation of the bridge swivel, support legs and slides are installed around the rotating ball joint during the construction of the swivel bridge, and a sliding plate is laid between the support legs and the slides to reduce the rotating friction resistance. The gap between the support legs and the slides has two treatment methods before the bridge swivel: one is to fill clean coarse sand between the bottom of the support leg and the slide, and the bottom of the support leg is temporarily sealed by welding angle steel around the four corners of the bottom of the support leg to the slide, at this time, the support leg can play a temporary supporting role before the swivel; the other is to add small wedge-shaped steel plates to the bottom of the support leg, at this time, the support leg cannot play a temporary supporting role. However, both methods have problems: the dry sand filled in the support leg is difficult to clean after being wet, and the small wedge-shaped steel blocks are difficult to remove, which affects the swivel construction.

[0004] In addition, the support leg is generally directly embedded in the upper rotating platform and is basically used once, only plays an anti-tilting safety role during the swivel process, and cannot effectively play the role of bearing vertical force before the swivel, so a temporary locking device is needed to bear the vertical force generated by the unbalanced bending moment. The temporary locking device generally uses a temporary sand box plus a shaped steel or a precision rolled threaded steel rod to form a temporary locking facility, and the upper rotating platform and the lower bearing platform are temporarily locked before the swivel. However, the work of cutting and removing the fixed shaped steel is large, the construction space is narrow, the noise and light pollution are heavy, the construction efficiency is slow, and it is not energy-saving and environment-friendly, and has a great impact on the environment. The stress is suddenly released when the precision rolled threaded steel rod is removed, and the collapse effect is easy to occur, which has a relatively large safety risk. SUMMARY

[0005] In view of one or more of the above defects or improvement needs of the prior art, the present application provides a support device for bridge swivel construction, which integrates temporary fixing support and support leg functions, is convenient to remove and install, can improve the construction efficiency of the swivel bridge, shorten the construction period, and effectively save the construction cost of the swivel bridge.

[0006] In order to achieve the above object, the application provides a support device for bridge swivel construction, which is installed between an upper swivel table and a lower bearing platform, and comprises an upper support leg and a lower support leg;

[0007] The upper support leg comprises an upper support leg cylinder, a first cover plate and a second cover plate arranged at the top and bottom of the upper support leg cylinder respectively, and the first cover plate is detachably connected with the upper swivel table.

[0008] The lower support leg comprises a lower support leg cylinder, a third cover plate and a fourth cover plate arranged at the top and bottom of the lower support leg cylinder respectively, and the fourth cover plate is detachably connected with the lower bearing platform, and the third cover plate is detachably connected with the second cover plate, so that the upper support leg and the lower support leg are connected in a butt joint manner, and a filling material is arranged between the second cover plate and the third cover plate, and the filling material can change from a solid state to a liquid state when heated.

[0009] As a further improvement of the application, the upper support leg cylinder and / or the lower support leg cylinder has a rectangular cross section.

[0010] As a further improvement of the application, the upper support leg cylinder and / or the lower support leg cylinder is arranged with a cross-shaped rib at a central position of the rectangle.

[0011] As a further improvement of the application, the first cover plate is provided with a pouring hole for pouring concrete into the upper support leg cylinder.

[0012] And / or,

[0013] The third cover plate is provided with a pouring hole for pouring concrete into the lower support leg cylinder.

[0014] As a further improvement of the application, a pressure sensor is installed inside the filling material.

[0015] As a further improvement of the application, the fourth cover plate is provided with an upwardly curled edge or a chamfer along a sliding direction, so that the fourth cover plate slides on a sliding rail of the lower bearing platform.

[0016] As a further improvement of the application, an encapsulation baffle is arranged around the filling material, and the encapsulation baffle is detachably connected with the second cover plate and the third cover plate respectively.

[0017] As a further improvement of the application, the thickness of the filling material is 20mm-40mm.

[0018] Another aspect of the application also provides a use method of the support device for bridge swivel construction, which is realized by using the above support device for bridge swivel construction, and comprises the following steps:

[0019] S1: the lower support leg is detachably connected with the lower bearing platform through the fourth cover plate, the filling material is placed on the third cover plate of the lower support leg, the upper support leg is detachably connected with the third cover plate through the second cover plate, and then the upper support leg is detachably connected with the upper rotating platform through the first cover plate, so that the upper rotating platform is temporarily locked with the lower bearing platform;

[0020] S2: before the upper rotating platform is prepared to rotate, the connection between the fourth cover plate and the lower bearing platform and the connection between the third cover plate and the second cover plate are removed, the filling material is heated to melt and flow out, the second cover plate and the third cover plate are reconnected, and the support device composed of the upper support leg and the lower support leg is formed;

[0021] S3: the upper rotating platform rotates together with the support device, and after the rotation construction is completed, the first cover plate and the upper rotating platform are disconnected, and the support device is removed from the upper rotating platform.

[0022] The above improved technical features can be combined with each other as long as they do not conflict with each other.

[0023] Overall, compared with the prior art, the above technical solutions conceived by the present application have the following beneficial effects:

[0024] (1) The support device for bridge rotation construction of the present application comprises an upper support leg and a lower support leg, and detachable connections are adopted between the upper support leg and the upper rotating platform, between the upper support leg and the lower support leg, and between the lower support leg and the lower bearing platform, so that the connections between the structures are convenient to disassemble and assemble, and a filling material is arranged between the upper support leg and the lower support leg, which can change from solid to liquid under the condition of heating, so that the support device integrates the functions of temporary fixing and support. When the filling material is in solid state, the support device plays a role of fixing and supporting the rotating bridge between the upper rotating platform and the lower bearing platform, and when the filling material melts into liquid and flows away, the support device formed by the reconnection of the upper support leg and the lower support leg plays a role of preventing lateral tilting during the rotation of the bridge, and can be removed and recycled after the rotation of the rotation system is completed, thereby reducing the use cost and effectively saving the construction cost of the rotating bridge.

[0025] (2) The support device for bridge rotation construction of the present application sets the cross section of the upper support leg cylinder and / or the lower support leg cylinder as a rectangle, so that the support device can not only bear the vertical force generated by the load of the rotating bridge during the cantilever construction, but also bear the unbalanced load moment of the rotating bridge during the cantilever construction, thereby ensuring the structural stability of the rotating bridge during the cantilever construction.

[0026] (3) The support device for bridge swivel construction of the present application improves the overall rigidity and strength of the upper support leg and / or the lower support leg by arranging cross ribs at the center positions of the upper support leg cylinder and / or the lower support leg cylinder and pouring concrete into the upper support leg cylinder and / or the lower support leg cylinder through the pouring hole, thereby enhancing the load bearing capacity and structural stability of the support device.

[0027] (4) The support device for bridge swivel construction of the present application monitors the stress of the support device by installing a pressure sensor inside the filling material, so as to observe the stability of the structure during the swivel bridge construction.

[0028] (5) The use method of the support device for bridge swivel construction, which installs the support device composed of the upper support leg, the lower support leg and the filling material between the upper turntable and the lower bearing platform before the bridge swivel, can bear the vertical force generated by the bridge eccentric load during the cantilever construction of the swivel bridge, and ensures the overturning stability of the bridge construction; the upper support leg and the lower support leg after the filling material is melted and flows away are reconnected to form the support device, which plays a role of preventing lateral tilting during the bridge swivel; and the support device is removed after the swivel system is swiveled, so that the upper support leg and the lower support leg can be reused, green and environmental protection, reduce the use cost, and save the construction cost of the swivel bridge. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0030] Figure 1 is the overall structure schematic diagram of the support device for bridge swivel construction in the embodiments of the present application;

[0031] Figure 2 is Figure 1 the cross-sectional schematic diagram of A-A in

[0032] Figure 3 is Figure 1 the cross-sectional schematic diagram of B-B in

[0033] Figure 4 is the installation schematic diagram of the support device for bridge swivel construction in the embodiments of the present application;

[0034] Figure 5 is the bridge swivel system layout diagram in the embodiments of the present application.

[0035] In all the drawings, the same reference signs refer to the same technical features, specifically: 1, upper support leg; 11, upper support leg cylinder; 12, first cover plate; 13, second cover plate; 2, lower support leg; 21, lower support leg cylinder; 22, third cover plate; 23, fourth cover plate; 3, filling material; 4, cross rib; 5, pressure sensor; 6, baffle; 100, support device for bridge rotation construction; 200, upper rotating table; 300, lower bearing platform. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature is "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0041] Embodiments:

[0042] Please refer to Figures 1-5 The support device for bridge rotation construction in the preferred embodiment of the present application is installed between the upper turntable 200 and the lower bearing platform 300, and includes an upper support leg 1 and a lower support leg 2. The upper support leg 1 includes an upper support leg cylinder 11, a first cover plate 12 and a second cover plate 13 arranged at the top and bottom of the upper support leg cylinder 11 respectively, and the first cover plate 12 is detachably connected with the upper turntable 200. The lower support leg 2 includes a lower support leg cylinder 21, a third cover plate 22 and a fourth cover plate 23 arranged at the top and bottom of the lower support leg cylinder 21 respectively, and the fourth cover plate 23 is detachably connected with the lower bearing platform 300. The third cover plate 22 is detachably connected with the second cover plate 13, so that the upper support leg 1 and the lower support leg 2 are butt jointed, and a filling material 3 is arranged between the second cover plate 22 and the third cover plate 13, which can change from solid state to liquid state when heated.

[0043] In the preferred embodiment, the support device composed of the upper support leg 1, the lower support leg 2 and the filling material 3 is installed between the upper turntable 200 and the lower bearing platform 300, and can bear the vertical force generated by the eccentric load of the bridge during the cantilever construction of the bridge, thereby ensuring the overturning stability of the bridge construction. Meanwhile, the support device is fixedly connected to the lower bearing platform 300, and can also resist the wind load torque, thereby solving the problem of supporting and fixing the bridge during the cantilever construction of the bridge under the condition of unbalanced eccentric load torque and wind load horizontal torque. Before the bridge is ready to be rotated, the filling material 3 can be heated to melt into a liquid and flow away. At this time, the upper support leg 1 and the lower support leg 2 have a certain gap therebetween. The gap can be adjusted to be between the lower support leg 2 and the lower bearing platform 300 through detachable connection, so that the height of the support device formed by the reconnection of the upper support leg 1 and the lower support leg 2 is reduced, and the support device can rotate together with the upper turntable 200 during the rotation of the bridge, thereby playing a role of lateral tilting prevention insurance and effectively ensuring the safety during the rotation of the bridge. In addition, detachable connection is adopted between the upper support leg 1 and the upper turntable 200, between the upper support leg 1 and the lower support leg 2, and between the lower support leg 2 and the lower bearing platform 300, so that the connection between the structures can be conveniently removed and installed. The support device can quickly realize the conversion of the two forms, thereby improving the construction efficiency, shortening the construction period and effectively saving the construction cost of the rotating bridge.

[0044] Preferably, the detachable connection between the upper support leg 1 and the upper turntable 200, between the upper support leg 1 and the lower support leg 2, and between the lower support leg 2 and the lower bearing platform 300 is bolt connection.

[0045] In the preferred embodiment, the thickness of the filling material 3 is 20mm-40mm. When the filling material 3 is melted, the gap between the support device 100 formed by the connection of the upper support leg 1 and the lower support leg 2 and the lower bearing platform 300 is between 20mm and 40mm. On the one hand, the gap between the support device 100 and the lower bearing platform 300 is prevented from being too small during the rotation of the bridge, thereby affecting the rotation of the upper turntable 200. On the other hand, the gap between the support device 100 and the lower bearing platform 300 is prevented from being too large, thereby limiting the lateral tilting prevention insurance effect during the rotation.

[0046] Preferably, the filling material 3 is made of thermoplastic polyester mixture. The thermoplastic polyester mixture is a high-load low-melting solid-liquid conversion material, has high strength and good dynamic mechanical properties, can bear the vertical force transmitted by the upper support leg 1, and can meet the requirements of temporary support of the support device. The thermoplastic polyester mixture has good melting flowability and stable melting state, and can quickly realize the conversion of the support device from support to lateral tilting prevention.

[0047] Further preferably, a baffle 6 is arranged around the filling material 3, and detachably connected with the second cover plate 13 and the third cover plate 22 respectively, so as to encapsulate the filling material 3 between the second cover plate 13 and the third cover plate 22, preventing the filling material 3 from overflowing from the side edges of the second cover plate 13 and the third cover plate 22.

[0048] Preferably, the baffle 6 is made of a thermoplastic polyester mixture.

[0049] As shown in Figure 2 , 3 , the cross section of the upper support leg cylinder 11 and / or the lower support leg cylinder 21 is preferably rectangular, and the rectangular support structure formed by aligning the upper support leg cylinder 11 and the lower support leg cylinder 21 can not only bear the vertical force generated by the eccentric load of the bridge during the cantilever construction of the swivel bridge, but also bear the unbalanced eccentric load moment during the cantilever construction of the swivel bridge, thereby ensuring the structural stability of the swivel bridge during the cantilever construction.

[0050] Further preferably, the upper support leg cylinder 11 and / or the lower support leg cylinder 21 is arranged with a cross-shaped rib 4 at the center of the rectangle, so as to improve the overall rigidity and strength of the upper support leg 1 and / or the lower support leg 2, and enhance the stress performance of the support device.

[0051] Preferably, the first cover plate 12 is provided with a pouring hole for pouring concrete into the upper support leg cylinder 11, further improving the load bearing capacity and structural stability of the upper support leg 1; and preferably, the third cover plate 22 is provided with a pouring hole for pouring concrete into the lower support leg cylinder 21, further improving the load bearing capacity and structural stability of the lower support leg 2.

[0052] Preferably, a pressure sensor 5 is installed inside the filling material 3, which can monitor the vertical force between the upper support leg 1 and the lower support leg 2, and further monitor the stability of the structure during the construction of the swivel bridge.

[0053] Preferably, the fourth cover plate 23 is provided with an upwardly curled edge or a chamfer along the sliding direction, so as to slide on the slide of the lower bearing platform 300.

[0054] In actual use, as shown in Figure 4 , 5 , the application further provides a use method of the support device for the bridge swivel construction, comprising the following steps:

[0055] S1: the lower support leg 2 is detachably connected with the lower bearing platform 300 through the fourth cover plate 23, the filling material 3 is placed on the third cover plate 22 of the lower support leg 2, the upper support leg 1 is detachably connected with the third cover plate 22 through the second cover plate 13, and then is detachably connected with the upper rotating platform 200 through the first cover plate 12, so that the support device 100 for bridge rotating construction temporarily locks the upper rotating platform 200 and the lower bearing platform 300.

[0056] In this step, the support device 100 plays a temporary fixing and supporting role in the construction process before the bridge rotating.

[0057] S2: before the upper rotating platform 200 is prepared to rotate, the connection between the fourth cover plate 23 and the lower bearing platform 300 and the connection between the third cover plate 22 and the second cover plate 13 are removed, the filling material 3 is heated to melt and flow out, the second cover plate 13 and the third cover plate 22 are reconnected, and the support device composed of the upper support leg 1 and the lower support leg 2 is formed.

[0058] In this step, the melting and flowing away of the filling material 3 change the support device 100 from being composed of the upper support leg 1, the filling material 3 and the lower support leg 2 in height to being composed of the upper support leg 1 and the lower support leg 2, and change the function from supporting to anti-tilting insurance, at this time, the lower support leg 2 of the support device 100 has a certain gap with the lower bearing platform 300; preferably, the filling material 3 is heated by electrification.

[0059] S3: the upper rotating platform 200 rotates together with the support device 100, after the rotating construction is completed, the connection between the first cover plate 12 and the upper rotating platform 200 is removed, and the support device 100 is removed from the upper rotating platform 200.

[0060] In this step, the support device 100 plays a support leg anti-tilting insurance role in the bridge rotating process, and after the rotating system is rotated, the support device 100 is removed from the upper rotating platform 200, so that the upper support leg 1 and the lower support leg 2 can be reused, the use cost is reduced, and the green environmental protection concept is met.

[0061] The support device for bridge rotating construction of the application integrates temporary fixing and supporting and support leg functions, plays a fixed rotating bridge role in the construction process before the bridge rotating, plays a support leg anti-tilting insurance role in the bridge rotating process, and after the rotating system is rotated, can be removed and recycled, reduces the use cost, and reduces the number of solidified steel or finish rolling screw rod and sand box required on the construction site.

[0062] Those skilled in the art can easily understand that the above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A support device for bridge rotation construction, installed between the upper turntable and the lower bearing platform, characterized in that: Including upper support legs and lower support legs; The upper support leg comprises an upper support leg cylinder, a first cover plate and a second cover plate respectively arranged on the top and bottom of the upper support leg cylinder, wherein the first cover plate is detachably connected to the upper turntable; The lower support leg includes a lower support leg cylinder, a third cover plate and a fourth cover plate respectively arranged at the top and bottom of the lower support leg cylinder, the fourth cover plate is detachably connected to the lower support platform, and the third cover plate is detachably connected to the second cover plate, so that the upper support leg and the lower support leg are docked, and a filling material is arranged between the second cover plate and the third cover plate. The filling material can be changed from solid to liquid when heated, and the filling material melts and flows away, so that the support device is transformed from an upper support leg, a filling material, and a lower support leg in height to an upper support leg and a lower leg, and is functionally transformed from a supporting role to an anti-roll insurance role. At this time, there is a certain gap between the lower support leg and the lower support platform of the support device.

2. The support device for bridge rotation construction according to claim 1, characterized in that: The cross section of the upper support leg cylinder and / or the lower support leg cylinder is rectangular.

3. The support device for bridge rotation construction according to claim 2, characterized in that: The upper support leg cylinder and / or the lower support leg cylinder are / is provided with a cross rib at the center position of the rectangle.

4. The support device for bridge rotation construction according to claim 1, characterized in that: The first cover plate is provided with a pouring hole for pouring concrete into the upper support leg cylinder; and / or, The third cover plate is provided with a pouring hole for pouring concrete into the lower support leg cylinder.

5. The supporting device for bridge rotation construction according to claim 1, characterized in that: A pressure sensor is installed inside the filling material.

6. The supporting device for bridge rotation construction according to claim 1, characterized in that: The fourth cover plate is provided with an upward curling edge or chamfer along the sliding direction so that the fourth cover plate can slide on the slideway of the lower platform.

7. The supporting device for bridge rotation construction according to claim 1, characterized in that: Packaging baffles are arranged around the filling material, and the packaging baffles are detachably connected to the second cover plate and the third cover plate respectively.

8. The supporting device for bridge rotation construction according to claim 1, characterized in that: The thickness of the filling material is 20 mm to 40 mm.

9. A method for using a support device for bridge rotation construction, characterized in that: The method of use is implemented using the support device for bridge rotation construction according to any one of claims 1 to 8, comprising the following steps: S1: The lower support leg is detachably connected to the lower support platform via the fourth cover plate, the filling material is placed on the third cover plate of the lower support leg, the upper support leg is detachably connected to the third cover plate via the second cover plate, and then the upper support leg is detachably connected to the upper turntable via the first cover plate, temporarily locking the upper turntable and the lower support platform; S2: Before the upper turntable is ready to rotate, the connection between the fourth cover plate and the lower support platform, as well as the connection between the third cover plate and the second cover plate are removed, the filling material is heated to melt and flow out, and the second cover plate and the third cover plate are reconnected to form a support device consisting of the upper support leg and the lower support leg; S3: The upper turntable rotates together with the supporting device. After the rotation is completed, the connection between the first cover plate and the upper turntable is removed, and the supporting device is removed from the upper turntable.

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