Unbraced rotating adjustable device for light steel structure bridge and construction method thereof

Abstract

This invention discloses an unsupported, rotatable, adjustable device for lightweight steel structure bridges and its construction method, comprising: a pier, cast into the outer side of the building structure; a construction platform, erected on the pier; a slewing bearing, installed on the pier; a support wall, erected above the building structure, one end of which extends above the construction platform; the support wall is arc-shaped and coaxial with the slewing bearing; a guide groove is formed on the inner arc surface of the support wall, the guide groove being arranged along the arc direction of the support wall; an adjustable-length connecting component, one end of which is connected to a slider sliding in the guide groove, the other end of which is hinged to the short arm end; the connecting component's length is adjusted to adjust the elevation of the long arm end; and a jacking mechanism installed on the support wall. This invention solves the problems of insufficient positioning for lifting machinery and inability to establish supports when constructing bridges over rivers, on the tops of residential buildings, or on various other structures.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to an unsupported rotating adjustable device for lightweight steel structure bridges and its construction method. Background Technology

[0002] With the rapid development of urban construction, there are problems with the construction of bridges over rivers, on the tops of residential buildings, or on various other structures, such as the inability of lifting machinery to be positioned for hoisting and the inability to set up supports. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, a supportless rotating adjustable device and its construction method for lightweight steel structure bridges are provided to solve the problems of lifting machinery being unable to stand in place and supports being unable to be set up when building bridges over rivers, on top of residential buildings or various buildings.

[0004] To achieve the above objectives, a supportless, rotatable, adjustable device for lightweight steel structure bridges is provided, comprising:

[0005] Piers are cast into the outer side of a building structure.

[0006] A construction platform for assembling a lightweight steel structure bridge is erected on the pier. The construction platform is set along the circumferential direction of the building structure. The lightweight steel structure bridge has a short arm end and a long arm end.

[0007] A slewing bearing for supporting the middle section of the lightweight steel structure bridge is installed on the pier.

[0008] A support wall is erected above the building structure. One end of the support wall extends above the construction platform. The support wall is arc-shaped and coaxial with the slewing bearing. A guide groove is formed on the inner arc surface of the support wall. The guide groove is arranged along the arc direction of the support wall.

[0009] An adjustable-length connecting component has a slider that slides in the guide groove at one end and is hinged to the short arm end at the other end. The elevation of the long arm end can be adjusted by length adjustment of the connecting component.

[0010] A jacking mechanism for driving the connecting assembly to rotate the lightweight steel structure bridge about the axis of the slewing bearing to the installation position is mounted on the support wall.

[0011] Furthermore, the connection component includes:

[0012] A truss, wherein one end of the horizontal chord of the truss is hinged to the end of the short arm;

[0013] A threaded sleeve is provided, wherein the slider is connected to a support rod, the support rod is coaxially arranged with the other end of the horizontal chord of the truss, the other end of the support rod and the horizontal chord are respectively formed with external threads, and the threaded sleeve is screwed into the other end of the support rod and the horizontal chord, the thread directions of the two ends of the threaded sleeve being opposite.

[0014] Furthermore, anti-detachment flanges are formed on opposite sides of the opening of the guide groove, and the slider forms a limiting flange, which abuts against the inner side of the anti-detachment flange.

[0015] Furthermore, there are two guide grooves, and the horizontal chord includes an upper chord and a lower chord. The upper chord and the lower chord are respectively connected to the slider support rods in the two guide grooves through threaded sleeves.

[0016] Furthermore, a steel rail is installed on the inner arc surface of the support wall, the steel rail being arranged along the arc direction of the support wall, and the jacking mechanism includes:

[0017] A rail clamp, used to hold the rail;

[0018] A hydraulic jack is hinged to the rail clamp and the connecting assembly.

[0019] This invention provides a construction method for an unsupported, rotatable, adjustable device for lightweight steel structure bridges, comprising the following steps:

[0020] Piers were cast on the outer sides of the building structures on both sides of the river channel to form piers;

[0021] A construction platform is erected on the pier, such that the construction platform is set along the circumferential direction of the building structure;

[0022] A slewing bearing is installed on the pier;

[0023] A support wall is erected above the building structure, one end of which extends above the construction platform. The support wall is arc-shaped and coaxial with the slewing bearing.

[0024] A lightweight steel structure bridge is assembled on the construction platform, such that the middle part of the lightweight steel structure bridge rests on the slewing bearing;

[0025] The connecting assembly is hinged to the short arm end of the lightweight steel structure bridge;

[0026] The jacking mechanism on the supporting walls on both sides of the river channel drives the connecting assembly to rotate the lightweight steel structure bridge about the axis of the slewing bearing to the installation position.

[0027] By adjusting the length of the connecting components to adjust the elevation of the long arm end of the lightweight steel structure bridge, the long arm ends of the lightweight steel structure bridges on both sides of the river can be precisely connected.

[0028] The beneficial effects of this invention are that the unsupported rotating adjustable device for lightweight steel structure bridges is assembled on a construction platform on the outside of the building structure (i.e., in the direction parallel to the wall of the building structure or perpendicular to the length direction of the bridge). The assembled lightweight steel structure bridge rests on a slewing bearing, and then a jacking mechanism is used to jack and rotate it to the installation position. By adjusting the length of the connecting components (i.e., in the form of stretching or relaxing), the elevation of the bridge end is adjusted to achieve bridge construction accuracy, thus solving the problems of the inability to support the suspended part of the lightweight steel bridge and the inability of the lifting machinery to stand in position during bridge construction. Attached Figure Description

[0029] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0030] Figure 1 This is a structural schematic diagram of an unsupported rotating adjustable device for lightweight steel structure bridges, according to an embodiment of the present invention.

[0031] Figure 2 This is a schematic diagram of the connection component according to an embodiment of the present invention.

[0032] Figure 3 This is a top view of an embodiment of the present invention for an unsupported rotating adjustable device for lightweight steel structure bridges.

[0033] Figure 4 This is a schematic diagram illustrating the usage state of the unsupported rotating adjustable device for lightweight steel structure bridges according to an embodiment of the present invention.

[0034] Figure 5 This is a schematic diagram of the docking state of a lightweight steel structure bridge according to an embodiment of the present invention.

[0035] Figure 6 This is a schematic diagram of the guide groove according to an embodiment of the present invention. Detailed Implementation

[0036] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] Reference Figures 1 to 6 As shown, the present invention provides an unsupported rotatable adjustable device for lightweight steel structure bridges, comprising: pier column 1, construction platform 2, slewing bearing 3, support wall 4, connecting assembly 5, and jacking mechanism 6.

[0039] In this embodiment, the pier 1 is cast and formed on the outside of the building structure 7. The pier is used to install and support the lightweight steel structure bridge. The lightweight steel structure bridge has two sections. The two sections are spliced ​​together to form the complete bridge steel structure. The two sections are installed on both banks of the river and joined together in the middle of the river. Each section of the lightweight steel structure bridge 8 has a short arm end and a long arm end.

[0040] Construction platform 2 is erected on pier 1. Construction platform 2 is used for assembling the lightweight steel structure bridge 8. Construction platform 2 is set along the circumferential direction of the building structure 7.

[0041] The slewing bearing 3 is installed on the pier 1. The slewing bearing 3 supports the middle section of the lightweight steel structure bridge 8. The construction platform can be supported by a support frame. The construction platform and the slewing bearing do not interfere with each other. Preferably, a through hole is formed within the construction platform, and the slewing bearing is installed in the through hole. When assembling the lightweight steel structure bridge on the construction platform, the middle section of the lightweight steel structure bridge rests on the slewing bearing.

[0042] Support wall 4 is erected above building structure 7. One end of support wall 4 extends above construction platform 2. Support wall 4 is arc-shaped and coaxially arranged with slewing bearing 3. Guide groove 40 is formed on the inner arc surface of support wall 4. Guide groove 40 is arranged along the arc direction of support wall 4.

[0043] The supporting wall is made of concrete. The bottom of the supporting wall is supported above the building structure by supporting piles 41.

[0044] The length of the connecting component 5 is adjustable. One end of the connecting component 5 is connected to a slider 53, which slides within the guide groove 40. The other end of the connecting component 5 is hinged to the short arm end of the lightweight steel structure bridge 8. The elevation of the long arm end of the lightweight steel structure bridge 8 can be adjusted by length adjustment of the connecting component 5. Correspondingly, the slider can slide and rotate within the guide groove. The elevation of the long arm end of the lightweight steel structure bridge 8 can be finely adjusted via the connecting component, ensuring precise alignment of the long arm ends of the two sections of the lightweight steel structure bridge 8.

[0045] The jacking mechanism 6 is mounted on the support wall 4. The jacking mechanism 6 is used to drive the connecting assembly 5 to rotate the lightweight steel structure bridge 8 about the axis of the slewing bearing 3 to the installation position.

[0046] See Figure 1 , Figure 4 and Figure 5 As shown, Figure 1 The state shown is the state of the lightweight steel structure bridge after it has been assembled on the construction platform. Figure 4 The state shown is that the light steel structure bridge, driven by the jacking mechanism, rotates and aligns with the long arm end of the light steel structure bridge on the opposite bank of the river. Figure 5 The image shows the precise docking of the long arms of the lightweight steel structure bridges on both sides of the river.

[0047] In this embodiment, refer to Figure 2 and Figure 6 As shown, the connecting assembly 5 includes: a truss 51 and a threaded sleeve 52, a support rod 54 and a slider 53.

[0048] Truss 51 is a space truss. One end of the horizontal chord of the truss is hinged to the end of the short arm.

[0049] The threaded sleeve 52 is connected to the slider of the support rod 54. The support rod 54 is coaxially arranged with the other end of the horizontal chord of the truss 51. The other ends of the support rod and the horizontal chord are respectively formed with external threads. The threaded sleeve is screwed into the other ends of the support rod and the horizontal chord. The threads at both ends of the threaded sleeve are in opposite directions.

[0050] The length of the connecting component can be adjusted by rotating the threaded sleeve.

[0051] Continue reading Figure 6 As shown, anti-detachment flanges 42 extend from opposite sides of the opening of the guide groove 40. A limiting flange 531 is formed on the slider. The limiting flange 531 abuts against the inner side of the anti-detachment flange 42.

[0052] Continue reading Figure 2 As shown, there are two guide slots 40. The two guide slots are arranged parallel to each other vertically. Truss 51 is a spatial truss. The horizontal chords of the truss include an upper chord and a lower chord. The upper and lower chords are respectively connected to the supports of the sliders in the two guide slots 40 through threaded sleeves.

[0053] Continue reading Figure 6 As shown, a rail (not shown in the attached figure) is installed on the inner arc surface of the support wall 4. The rail is arranged along the arc direction of the support wall 4. The jacking mechanism 6 includes a rail clamp 61 and a hydraulic jack 62. The rail clamp 61 clamps the rail. The hydraulic jack 62 is hinged to the rail clamp 61 and the connecting assembly 5.

[0054] During the drive connection assembly, the rail clamps hold the rails. After the rail clamps hold the rails, the hydraulic jacks extend. After the hydraulic jacks extend, the rail clamps release the rails, and the hydraulic jacks retract, causing the rail clamps to move forward. After the rail clamps move forward, they clamp the rails again, and this cycle continues until the lightweight steel structure bridge is rotated to the installation position. After the lightweight steel structure bridge is rotated to the installation position, the length of the connecting assembly is adjusted, thereby adjusting the elevation of the long arm end of the lightweight steel structure bridge, so that the long arm ends of the lightweight steel structure bridges on both sides of the river are precisely aligned and connected.

[0055] This invention provides a construction method for an unsupported, rotatable, adjustable device for lightweight steel structure bridges, comprising the following steps:

[0056] S1, piers 1 are formed by pouring concrete on the outside of the building structures 7 on both sides of the river.

[0057] S2. Construct a construction platform 2 on the pier 1, so that the construction platform 2 is set along the circumferential direction of the building structure 7.

[0058] S3. Install slewing bearing 3 on pier 1.

[0059] S4. A support wall 4 is erected above the building structure 7. One end of the support wall 4 extends above the construction platform 2. The support wall 4 is arc-shaped and coaxial with the slewing bearing 3.

[0060] S5. Assemble the lightweight steel structure bridge 8 on the construction platform 2, so that the middle part of the lightweight steel structure bridge 8 rests on the slewing bearing 3.

[0061] S6. Hinge the connecting component 5 to the short arm end of the lightweight steel structure bridge 8.

[0062] S7. The jacking mechanism 6 on the support wall 4 on both sides of the river channel drives the connecting assembly 5 to rotate the lightweight steel structure bridge 8 about the axis of the slewing bearing 3 to the installation position.

[0063] S8. By adjusting the length of the connecting component 5, the elevation of the long arm end of the lightweight steel structure bridge 8 is adjusted, so that the long arm ends of the lightweight steel structure bridge 8 on both sides of the river are precisely connected.

[0064] By adjusting the length of the connecting component 5 (i.e., in the form of stretching or relaxing), the elevation of the bridge end is adjusted to achieve bridge construction accuracy.

[0065] The present invention relates to an unsupported rotating adjustable device for lightweight steel structure bridges. The device is assembled on a construction platform on the outer side of the building structure (i.e., in the direction parallel to the wall of the building structure or perpendicular to the length of the bridge). The assembled lightweight steel structure bridge rests on a slewing bearing, and then a jacking mechanism is used to jack and rotate it to the installation position. By adjusting the length of the connecting components (i.e., in the form of stretching or relaxing), the elevation of the bridge end is adjusted to achieve bridge construction accuracy. This solves the problems of insufficient support for the suspended parts of lightweight steel bridges and the inability of lifting machinery to be positioned during bridge construction.

[0066] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A supportless, rotatable, adjustable device for lightweight steel structure bridges, characterized in that, include: Piers are cast into the outer side of a building structure. A construction platform for assembling a lightweight steel structure bridge is erected on the pier. The construction platform is set along the circumferential direction of the building structure. The lightweight steel structure bridge has a short arm end and a long arm end. A slewing bearing for supporting the middle section of the lightweight steel structure bridge is installed on the pier. A support wall is erected above the building structure. One end of the support wall extends above the construction platform. The support wall is arc-shaped and coaxial with the slewing bearing. A guide groove is formed on the inner arc surface of the support wall. The guide groove is arranged along the arc direction of the support wall. An adjustable-length connecting component has a slider that slides in the guide groove at one end and is hinged to the short arm end at the other end. The elevation of the long arm end can be adjusted by length adjustment of the connecting component. A jacking mechanism for driving the connecting assembly to rotate the lightweight steel structure bridge about the axis of the slewing bearing to the installation position is mounted on the support wall.

2. The unsupported rotatable adjustable device for lightweight steel structure bridges according to claim 1, characterized in that, The connection component includes: A truss, wherein one end of the horizontal chord of the truss is hinged to the end of the short arm; A threaded sleeve is provided, wherein the slider is connected to a support rod, the support rod is coaxially arranged with the other end of the horizontal chord of the truss, the other end of the support rod and the horizontal chord are respectively formed with external threads, and the threaded sleeve is screwed into the other end of the support rod and the horizontal chord, the thread directions of the two ends of the threaded sleeve being opposite.

3. The unsupported rotatable adjustable device for lightweight steel structure bridges according to claim 2, characterized in that, The guide groove has anti-detachment flanges extending from opposite sides of its opening. The slider has a limiting flange, which abuts against the inner side of the anti-detachment flange.

4. The unsupported rotatable adjustable device for lightweight steel structure bridges according to claim 2, characterized in that, The number of guide grooves is two, and the horizontal chord includes an upper chord and a lower chord. The upper chord and the lower chord are respectively connected to the slider support rods in the two guide grooves through threaded sleeves.

5. The unsupported rotatable adjustable device for lightweight steel structure bridges according to claim 1, characterized in that, A steel rail is installed on the inner arc surface of the support wall, and the steel rail is arranged along the arc direction of the support wall. The jacking mechanism includes: A rail clamp, used to hold the rail; A hydraulic jack is hinged to the rail clamp and the connecting assembly.

6. A construction method for an unsupported, rotatable, adjustable device for lightweight steel structure bridges as described in any one of claims 1 to 5, characterized in that, Includes the following steps: Piers were cast on the outer sides of the building structures on both sides of the river channel to form piers; A construction platform is erected on the pier, such that the construction platform is set along the circumferential direction of the building structure; A slewing bearing is installed on the pier; A support wall is erected above the building structure, one end of which extends above the construction platform. The support wall is arc-shaped and coaxial with the slewing bearing. A lightweight steel structure bridge is assembled on the construction platform, such that the middle part of the lightweight steel structure bridge rests on the slewing bearing; The connecting assembly is hinged to the short arm end of the lightweight steel structure bridge; The jacking mechanism on the supporting walls on both sides of the river channel drives the connecting assembly to rotate the lightweight steel structure bridge about the axis of the slewing bearing to the installation position. By adjusting the length of the connecting components to adjust the elevation of the long arm end of the lightweight steel structure bridge, the long arm ends of the lightweight steel structure bridges on both sides of the river can be precisely connected.

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