A device for restraining the erection of main cable strands of a suspension bridge

Abstract

The present invention discloses a device for suppressing the erection of the main cable strands of a suspension bridge, comprising: a supporting main frame, the supporting main frame being arranged on a catwalk crossbeam, the supporting main frame being used to bear the force of the entire suppressing device; an adjusting component, the adjusting component being arranged on the supporting main frame, the adjusting component being used to adapt to the height of the installed cable strands; and a positioning frame. The present invention arranges a positioning frame on the supporting main frame, passes the installed cable strands through the positioning frame, and allows the V-shaped grooves on the positioning frame to limit the lateral displacement of the installed cable strands, thereby preventing the installed cable strands from lateral displacement after erection and installation. The positioning frame connects the installed cable strands, the catwalk load-bearing cables, and the supporting main frame as a whole, which can effectively solve the problem of the installed cable strands shaking due to external forces during and after installation, and facilitates the installation and management of the installed cable strands. That is, it effectively solves the problem of low erection efficiency caused by vibration or self-vibration of the cable strands due to external forces in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of suspension bridges, and in particular to a device for restraining the erection of main cable strands of a suspension bridge. Background Art

[0002] The erection of the main cable strands of a suspension bridge is a key link in the construction of a suspension bridge. At present, the general method for erecting the strands is the relative sag method. The relative sag method is mature in theory and has accumulated a lot of engineering experience. However, when the span of the suspension bridge increases or the climatic conditions at the cable erection site are not good, the strands will vibrate by themselves or under the action of external forces. The monitoring environment required by the relative sag method cannot be met, making it inconvenient to monitor the strands, resulting in low efficiency in the erection of the strands. Summary of the invention

[0003] The purpose of the present invention is to solve the disadvantage of low erection efficiency caused by vibration or self-vibration of the cable strands under the influence of external forces in the prior art, and to propose a main cable strand erection restraining device for a suspension bridge.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A device for restraining the erection of main cable strands of a suspension bridge, comprising:

[0006] A supporting main frame, the supporting main frame is arranged on the catwalk crossbeam, and the supporting main frame is used to bear the force of the entire suppression device;

[0007] An adjustment component, the adjustment component is arranged on the supporting main frame, and the adjustment component is used to adapt the height of the installed cable strand;

[0008] A positioning frame, the positioning frame is arranged on the adjustment assembly, the positioning frame is in a V-shaped frame, and the positioning frame is used to limit the lateral displacement of the installation cable strand;

[0009] A positioning and ranging component, the positioning and ranging component is used to position and measure the erection area of ​​the installation cable strand;

[0010] Wherein, the supporting main frame, the positioning frame and the adjusting assembly are all on the same vertical plane;

[0011] The tension component is arranged on the catwalk crossbeam, the tension component is arranged opposite to the supporting main frame, and the tension component is used to limit the relative position between the installation cable strand and the catwalk load-bearing cable.

[0012] Optionally, the positioning frame is a V-shaped groove structure composed of two inclined supporting plates; the two supporting plates are provided with a plurality of positioning grooves on the connected edges, and the positioning grooves are perpendicular to the V-shaped groove structure; the supporting plates are also provided with:

[0013] A plurality of partitions, wherein the partitions are disposed through the positioning grooves, the partitions are parallel to the angular bisectors of the V-shaped groove structure, and the partitions are used to separate the internal space of the V-shaped groove structure to form a plurality of accommodating grooves;

[0014] A plurality of limit plates, wherein the limit plates are arranged on the bearing plate, the limit plates are located outside the V-shaped groove structure and are far away from the V-shaped groove structure, and the limit plates are arranged parallel to the partition plates, and the limit plates are detachably connected to the partition plates;

[0015] Two connecting plates are arranged opposite to each other along the angular bisector of the V-shaped groove structure, one end of the connecting plate is connected to the supporting main frame, and the top end of the connecting plate is connected to the bearing plate.

[0016] Optionally, the main support frame includes:

[0017] Two groups of support parts, the two groups of support parts are arranged oppositely on the catwalk crossbeam;

[0018] Among them, an upper crossbeam, a middle crossbeam and a lower crossbeam are arranged between the two groups of support parts from top to bottom, and the lower crossbeam, the middle crossbeam and the upper crossbeam are respectively connected to the two support parts;

[0019] The upper crossbeam is connected to the positioning and ranging assembly, the bottom end of the adjusting assembly is connected to the lower crossbeam, the top end of the adjusting assembly is connected to the positioning frame, and the middle crossbeam is detachably connected to the positioning frame through the support plate.

[0020] Optionally, the support portion includes:

[0021] A lower column, the bottom end of which is connected to the catwalk crossbeam, the bottoms of the two lower columns are connected through the lower crossbeam, and the two ends of the middle crossbeam are respectively connected to the two lower columns;

[0022] An upper column, the bottom end of which is connected to the top end of the lower column, and the upper column is detachably connected to the lower column, and the top ends of the two upper columns are connected via an upper crossbeam.

[0023] Optionally, the adjustment component includes:

[0024] A telescopic sleeve, the bottom end of which is connected to the lower cross beam, and the telescopic sleeve is arranged between the middle cross beams;

[0025] A telescopic column, wherein the bottom end of the telescopic column is connected to the top end of the telescopic sleeve, the top end of the telescopic column is connected to the positioning frame, and the telescopic column is parallel to the partition.

[0026] Optionally, the positioning and ranging component includes:

[0027] A plurality of groups of distance measuring and positioning parts are arranged in parallel along the axial direction of the upper cross beam, and the distance measuring and positioning parts are parallel to the accommodating grooves on the partition.

[0028] Optionally, the ranging and positioning unit includes:

[0029] A positioning plate, the positioning plate is arranged on the upper cross beam, and the positioning plate is close to the positioning frame;

[0030] A rangefinder, one end of which is connected to the upper crossbeam, the rangefinder is located between the two positioning plates, and the measuring end of the rangefinder is vertically located in the accommodating groove.

[0031] Optionally, the elastic component includes:

[0032] A support beam, wherein the support beam is arranged on the catwalk load-bearing cable and the support beam is arranged parallel to the catwalk crossbeam;

[0033] A limiting steel cable, one end of which is wound around the support beam, and the limiting steel cable is fixed at one end of the support beam through a plurality of rope clamps;

[0034] The other end of the limiting steel cable is overlapped on the installation cable strand and extends around the other end of the support beam. The other end of the limiting steel cable is also fixed at the other end of the support beam by a plurality of rope clamps.

[0035] Optionally, the elastic component further includes:

[0036] A connecting lug, the connecting lug being arranged on the supporting beam;

[0037] An oblique bracing ear piece, wherein the oblique bracing ear piece is arranged on the side wall of the lower column;

[0038] A supporting diagonal rod, one end of which is hinged to the connecting ear piece, and the other end of which is hinged to the diagonal supporting ear piece;

[0039] Wherein, the supporting diagonal rod is obliquely arranged between the supporting beam and the lower column.

[0040] The beneficial effects of the present invention are:

[0041] The present invention sets a positioning frame on the supporting main frame, passes the installation cable through the positioning frame, and allows the V-shaped groove on the positioning frame to limit the lateral displacement of the installation cable, so as to avoid the lateral displacement of the installation cable after the installation. At the same time, the installation cable is limited by the elastic component to avoid excessive changes in the relative position between the catwalk load-bearing cable and the installation cable when the installation cable is installed, and reduce other factors that affect the installation of the installation cable, so as to facilitate the installation of the installation cable by construction personnel. At the same time, the positioning frame connects the installation cable, the catwalk load-bearing cable, and the supporting main frame as a whole, so that the installation cable will not easily swing with external forces, and effectively enhances the connection strength between the installation cable, the catwalk load-bearing cable, and the positioning frame. That is, it can effectively solve the disadvantage that the installation cable shakes due to external forces during and after installation, and is convenient for installation and management of the installation cable. That is, it effectively solves the disadvantage of low erection efficiency caused by vibration or self-vibration of the cable under the influence of external forces in the prior art. In addition, a positioning and distance measuring component and an adjustment component are provided, so that the positioning and distance measuring component can facilitate the distance measurement of the installation cable strands and facilitate the precise installation and management of the installation cable strands; the adjustment component can adapt to the working height of the installation cable strands on the positioning frame to meet actual construction requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of a device for restraining the erection of main cable strands of a suspension bridge provided in an embodiment of the present invention (viewed from the front);

[0043] Figure 2 It is a schematic diagram of the overall structure of a main cable strand erection restraining device for a suspension bridge provided in an embodiment of the present invention (side view);

[0044] Figure 3 It is a schematic diagram of the structure of the lower column of a main cable strand installation restraining device for a suspension bridge provided in an embodiment of the present invention;

[0045] Figure 4 for Figure 1 A magnified view of part A in FIG.

[0046] Figure 5 for Figure 4 The cross-sectional view along the AA direction;

[0047] Figure 6 It is a schematic diagram of the structure of a positioning frame of a main cable strand installation restraining device for a suspension bridge provided in an embodiment of the present invention;

[0048] Figure 7 The present invention is a schematic diagram of a diaphragm structure of a main cable strand installation restraining device for a suspension bridge provided in an embodiment of the present invention.

[0049] The markings in the figure are as follows:

[0050] 1. Catwalk beam; 11. Catwalk load-bearing cable;

[0051] 2. Lower column; 21. Upper column; 22. Diagonal brace ear; 221. Support diagonal rod; 23. Connecting sleeve; 24. Lower crossbeam;

[0052] 3. Telescopic sleeve; 31. Telescopic column; 32. Middle crossbeam; 321. Limit block;

[0053] 4. Positioning frame; 41. Partition plate; 411. Limiting plate; 42. Installing cable strand; 421. High-precision cable strand; 43. Connecting plate; 44. Positioning groove; 45. Baffle plate;

[0054] 5. Upper crossbeam; 51. Positioning plate; 52. Distance meter;

[0055] 6. Limiting steel cable; 61. Rope clamp; 62. Support beam; 621. Support plate; 622. Connecting ear piece. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention. Example

[0060] Reference Figure 1-7 A device for suppressing the erection of main cable strands of a suspension bridge, the suppressing device is arranged on a catwalk crossbeam 1, wherein the catwalk crossbeam 1 is a gantry bottom beam erected on a catwalk load-bearing cable 11, wherein the gantry is not shown in the attached drawings, the suppressing device uses a positioning frame 4 to limit the erected installation strand 42, and to laterally limit the erected installation strand 42, so that the erected installation strand 42 is within the limiting space of the positioning frame 4, the positioning frame 4 erects itself in the catwalk system, so that the erected installation strand 42, the positioning frame 4 and the catwalk system are connected as a whole, so that the erected installation strand 42 and the installation strand 42 located in the to-be-adjusted area on the suppressing device are prevented from being laterally displaced by wind, thereby ensuring the overall stability and wind resistance of the installation strand 42. Reduce the impact of wind on the installation strand 42 during erection and installation.

[0061] Specifically, the restraining device includes: a supporting main frame, a positioning frame 4, an adjustment component, a positioning and distance measuring component, and a tensioning component. The supporting main frame is arranged on the catwalk crossbeam 1, and the supporting main frame is used to bear the force of the entire restraining device. The adjustment component is arranged on the supporting main frame, and the adjustment component is used to adapt to the height of the installation cable strand 42 to avoid the vertical installation cable strands 42 from affecting each other. The positioning frame 4 is arranged on the adjustment component, and the positioning frame 4 is in a V-shaped frame shape, and the positioning frame 4 is used to limit the lateral displacement of the installation cable strand 42. The positioning and distance measuring component is arranged on the supporting main frame, and the supporting main frame, the positioning frame 4, and the adjustment component are all on the same vertical plane. The positioning and distance measuring component is located above the positioning frame 4, and the positioning and distance measuring component is used to locate and measure the installation position of the installation cable strand 42 located on the positioning frame 4, so as to adjust the installation position of the installation cable strand 42. The tension assembly is arranged on the catwalk crossbeam 1, and the tension assembly is arranged relative to the supporting main frame. The tension assembly is used to limit the relative position between the installation cable strand 42 and the catwalk load-bearing cable 11, so as to avoid the gap between the installation cable strand 42 and the catwalk load-bearing cable 11 being too large, which is inconvenient for construction personnel to adjust and install the installation. In this embodiment, by arranging a positioning frame 4 on the supporting main frame, the installation cable strand 42 passes through the positioning frame 4, and the V-shaped groove on the positioning frame 4 limits the lateral displacement of the installation cable strand 42, so as to avoid the lateral displacement of the installation cable strand 42 after installation. At the same time, the installation cable strand 42 is limited by the elastic component to avoid excessive changes in the relative position between the catwalk load-bearing cable 11 and the installation cable strand 42 when the installation cable strand 42 is erected, and other factors that affect the erection and installation of the installation cable strand 42 are reduced, so that the construction personnel can install the installation cable strand 42. At the same time, the positioning frame 4 connects the installation cable strand 42, the catwalk load-bearing cable 11, and the supporting main frame as a whole, so that the installation cable strand 42 will not easily swing with external forces, and effectively enhance the connection strength between the installation cable strand 42, the catwalk load-bearing cable 11, and the positioning frame 4. That is, it can effectively solve the disadvantage that the installation cable strand 42 shakes due to external forces during and after installation, and it is convenient to install and manage the installation cable strand 42. That is, it effectively solves the disadvantage of low erection efficiency caused by vibration or self-vibration of the cable strand due to external forces in the prior art. In addition, a positioning and distance measuring component and an adjustment component are provided, so that the positioning and distance measuring component can measure the distance of the installation cable strand 42, and can facilitate the accurate installation and management of the installation cable strand 42; the adjustment component can adapt to adjust the working height of the installation cable strand 42 on the positioning frame 4 to meet the actual construction requirements. It should be noted that in this embodiment, the manner in which the positioning and distance measuring component measures the distance and locates the installation position of the installation cable strand 42 is not limited to one.That is, the installation position of the positioning and ranging component can be set not only on the positioning frame 4 or the supporting main frame, but also along the direction of the catwalk load-bearing cable, as long as the positioning and ranging component can monitor the relative position of the installed installation cable strand 42 and the installation cable strand 42 to be adjusted in real time. No more details will be given here.

[0062] Reference Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7The positioning frame 4 is composed of two bearing plates (not shown) arranged obliquely to form a V-shaped groove structure. The bearing plates are also provided with: a plurality of partitions 41, a plurality of limit plates 411 and two connecting plates 43. The two bearing plates are provided with a plurality of positioning grooves 44 on the connecting edges, and the positioning grooves 44 are perpendicular to the V-shaped groove structure. The partition 41 is arranged through the positioning groove 44, and the partition 41 is parallel to the angular bisector of the V-shaped groove structure. The partition 41 is used to separate the internal space of the V-shaped groove structure to form a plurality of receiving grooves. The positioning and ranging assembly is located above the receiving groove, and the installation cable strand 42 is located in the receiving groove. The limiting plate 411 is arranged on the bearing plate, and the limiting plate 411 is located outside the V-shaped groove structure, and the limiting plate 411 is arranged parallel to the partition plate 41, and a positioning hole (not shown in the figure) is arranged on the limiting plate 411, and the limiting plate 411 is located on one side of the partition plate 41, and the limiting plate 411 and the partition plate 41 can be detachably connected by bolts and pins inserted through the positioning holes. In this embodiment, after the partition plate 41 separates the internal space of the V-shaped groove structure, the partition plate 41 is fixed by the limiting plate 411 to prevent the partition plate 41 from sliding in the positioning groove 44, thereby ensuring the limiting effect of the partition plate 41 on the installation of the cable strand 42. At the same time, when it is necessary to adjust the separation height of the partition 41 on the positioning frame 4, the partition 41 is allowed to slide inside the positioning groove 44. After the adjustment is completed, the limiting plate 411 is fixed to the partition 41 by a pin or a bolt, so as to facilitate the adjustment and control of the isolation depth of the partition 41 inside the V-shaped groove structure. The two connecting plates 43 are arranged opposite to each other along the angular bisector of the V-shaped groove structure, the bottom end of the connecting plate 43 is connected to the supporting main frame, and the top end of the connecting plate 43 is connected to the bearing plate. The connecting plate 43 is used to bear part of the bearing stress of the V-shaped groove structure. In this embodiment, in order to ensure the lateral limit number of the installation cable strands 42 inside the V-shaped groove structure, the two ends of the V-shaped groove structure that are far away from each other are provided with baffles 45, and the two baffles 45 are arranged parallel to the partition 41. That is, the two baffles 45 are vertically connected to the two ends of the V-shaped groove structure, which can effectively prevent the installation cable strands 42 from falling out of the internal space of the V-shaped groove structure. At the same time, it is also convenient for the partition plate 41 to be separated. In this embodiment, in order to ensure the bearing strength of the positioning frame 4, the positioning frame 4 is an integrally formed structure, that is, the two bearing plates are an integrally formed structure.

[0063] Reference Figure 1 and Figure 4, in this embodiment, to facilitate the connection between the positioning frame 4 and the connecting plate 43, the bearing plate is an L-shaped plate. The two bearing plates are arranged in a mirror image, and the two side plates on the two bearing plates are joined together to form a V-shaped groove structure. The other two side plates on the two bearing plates are respectively inserted into the connecting plate 43. In this embodiment, to ensure the support strength of the connecting plate 43 on the two bearing plates and the number of cable strands borne by the V-shaped groove structure, the V-shaped opening angle of the V-shaped groove structure formed by the two bearing plates is a, and the value range of a is: 80° < a < 120°. That is, the value of a can be: 81°, 82°, 83°... 100°, 101°,..., 119°, etc.

[0064] In this embodiment, the main support frame includes: two sets of support parts, a lower cross beam 24, a middle cross beam 32, and an upper cross beam 5. The two sets of support parts are arranged oppositely on the catwalk cross beam 1, and the support parts are used to support and bear the stress on the entire positioning frame 4 and the adjustment assembly. The lower cross beam 24, the middle cross beam 32, and the upper cross beam 5 are horizontally arranged between the two sets of support parts from top to bottom in sequence, and the lower cross beam 24, the middle cross beam 32, and the upper cross beam 5 are respectively connected to the two support parts. The upper cross beam 5 is connected to the positioning and ranging assembly, one end of the adjustment assembly is connected to the lower cross beam 24, and the middle cross beam 32 is detachably connected to the positioning frame 4 through the support plate 621, which is convenient for the adjustment assembly on the positioning frame 4 to adjust and adapt to the installation position of the installation cable strand 42. In this embodiment, by installing the positioning and ranging assembly on the upper cross beam 5, the positioning and ranging assembly is used to position and measure the distance of the erection area of the installation cable strand. The adjustment assembly is installed on the middle cross beam 32 and the lower cross beam 24, so that the positioning and ranging assembly and the adjustment assembly are on the same vertical line. On the one hand, the main support frame bears and supports the positioning and ranging assembly, the adjustment assembly, and the positioning frame 4. On the other hand, it is also convenient for the positioning and ranging assembly to measure the distance and the adjustment assembly to adjust the working height of the installation cable strand 42.

[0065] In this embodiment, to ensure that the positioning and ranging instrument 52 can adjust the ranging height at the support part, the support part can be adjusted in height up and down. Specifically, one set of support parts includes: an upper column 21 and a lower column 2. The bottom end of the lower column 2 is connected to the catwalk cross beam 1, and the bottoms of the two lower columns 2 are connected by a lower cross beam 24. The two ends of the middle cross beam 32 are respectively connected to the two lower columns 2. The bottom end of the upper column 21 is connected to the top end of the lower column 2, and the upper column 21 is slidably connected inside the lower column 2. The top ends of the two upper columns 21 are connected by an upper cross beam 5.

[0066] In this embodiment, the lower column 2 and the upper column 21 are both square pipe sleeves, and the diameter of the lower column 2 is greater than the diameter of the upper column 21, so that the upper column 21 can slide in the lower column 2. In this embodiment, in order to facilitate the control of the sliding position of the upper column 21 in the lower column 2, multiple groups of through holes (not shown in the figure) are provided on the outer walls of the upper column 21 and the lower column 2, and the spacing between the through holes on the upper column 21 and the lower column 2 is consistent, so as to accurately control the sliding position of the upper column 21 on the lower column 2, and the through holes on the upper column 21 and the lower column 2 are connected by bolts or pins. That is, the bolts or pins pass through the through holes of the upper column 21 and the lower column 2 in sequence, and fix the upper column 21 inside the lower column 2, thereby effectively preventing the upper column 21 from sliding on the lower column 2. In this embodiment, in order to prevent the upper column 21 from completely sliding down into the interior of the lower column 2, a clamping plate (not shown in the figure) is provided at the top of the upper column 21. The diameter of the clamping plate is greater than the hole length of the lower column 2, which can effectively prevent the upper column 21 from completely sliding down into the interior of the upper column 21. In this embodiment, in order to prevent the middle cross beam 32 from interfering with the operation of the telescopic sleeve 23, the middle cross beam 32 is two cross plates (not shown in the figure). The two cross plates are relatively connected below the connecting plate 43, and the two ends of the two cross plates are connected to the lower column 2 through the connecting sleeve 23. In addition, in this embodiment, in order to prevent the telescopic sleeve 3 from shifting between the two cross plates, the two cross plates are provided with limit blocks 321. The two limit blocks 321 and the two cross plates form a rectangular frame. The telescopic sleeve 3 is located in the rectangular frame for limit.

[0067] In this embodiment, in order to ensure the adjustment and support effect of the adjustment component on the positioning frame 4, the adjustment component is provided with two groups, and the two groups of the adjustment components are arranged oppositely. The bottom end of the adjustment component passes through the middle cross beam 32 and is connected to the lower cross beam 24, and the top end of the adjustment component is connected to the positioning frame 4. Specifically, a group of adjustment components is described as an example, and the adjustment component includes: a telescopic sleeve 3 and a telescopic column 31. The bottom end of the telescopic sleeve 3 is connected to the lower cross beam 24, the bottom end of the telescopic column 31 is connected to the top end of the telescopic sleeve 3, the top end of the telescopic column 31 is connected to the positioning frame 4, and the telescopic column 31 is parallel to the partition 41. In this embodiment, the telescopic sleeve 3 is used to control the telescopic amount of the telescopic column 31. The telescopic height of the telescopic column 31 is controlled by the telescopic sleeve 3, and the supporting height of the positioning frame 4 on the telescopic column 31 is effectively adjusted, that is, it is convenient to adjust the working height of the installation cable 42 on the positioning frame 4. In addition, in this embodiment, the structure of the telescopic sleeve 3 is consistent with the structure of the support part. That is, the telescopic sleeve 3 includes two sleeves, the diameters of the two sleeves are one large and one small, the small sleeve is slidably sleeved inside the large sleeve, and through holes are provided on both the large and small sleeves, and the through holes on the small sleeve and the large sleeve are spaced in the same distance, so as to accurately control the sliding position of the small sleeve on the large sleeve, and the through holes on the small sleeve and the large sleeve are connected by bolts or pins. That is, the bolts or pins pass through the through holes of the small sleeve and the large sleeve in sequence, and fix the small sleeve inside the large sleeve, thereby effectively preventing the small sleeve from sliding on the large sleeve. In this embodiment, in order to prevent the small sleeve from completely sliding down into the interior of the large sleeve, a fixed plate (not shown in the figure) is provided on the top of the small sleeve, and the diameter of the fixed plate is greater than the aperture length of the large sleeve, which can effectively prevent the small sleeve from completely sliding down into the interior of the small sleeve.

[0068] In this embodiment, in order to ensure the supporting and bearing effect of the middle cross beam 32 on the telescopic sleeve 3 and the positioning frame 4. Connecting sleeves 23 are respectively provided on both ends of the middle cross beam 32, and the two connecting sleeves 23 are respectively sleeved on the two lower columns 2, and the connecting sleeves 23 are detachably connected to the lower columns 2 through bolts or pins. A limit block 321 is also provided on the middle cross beam 32, and the telescopic sleeve 3 is connected to the middle cross beam 32 through the limit block 321. In this embodiment, by connecting the telescopic sleeve 3 to the middle cross beam 32, when the telescopic sleeve 3 adjusts the bearing height of the positioning frame 4 through the telescopic column 31, the middle cross beam 32 will also adjust its position along with the telescopic direction of the telescopic sleeve 3, so that the middle cross beam 32 can support and bear the positioning frame 4 through the connecting plate 43, thereby ensuring the working strength of the positioning frame 4.

[0069] Reference Figure 1, the positioning and distance measuring component is arranged on the upper crossbeam 5, and the positioning and distance measuring component includes: multiple groups of distance measuring and positioning parts, multiple groups of the distance measuring and positioning parts are arranged in parallel along the axial direction of the upper crossbeam 5, the distance measuring and positioning parts are parallel to the gap between the two partitions 41 on the positioning frame 4, and the distance measuring and positioning parts are used to measure and position the installation cable strands 42 between the partitions 41. Multiple groups of the distance measuring and positioning parts are used to limit the lateral position of the installation cable strands, and measure the relative position height difference between the installed installation cable strands and the installation cable strands to be adjusted in the vertical relative position, so as to facilitate subsequent precise control. Specifically, a group of the positioning and distance measuring parts is described. The positioning and distance measuring parts include: a positioning plate 51 and a rangefinder 52, the positioning plate 51 is arranged on the upper crossbeam 5, and the positioning plate 51 is close to the positioning frame 4. One end of the rangefinder 52 is connected to the upper crossbeam 5, and the distance measuring end of the rangefinder 52 is vertically located in the receiving groove, so that the rangefinder 52 can locate and measure the distance of the installation cable strand 42 in the receiving groove. In this embodiment, in order to avoid mutual interference between multiple rangefinders 52, the rangefinder 52 is set between two adjacent positioning plates 51. That is, the rangefinder 52 is separated by the positioning plates 51. In this embodiment, the rangefinder 52 can be a laser rangefinder or an acoustic rangefinder. In this embodiment, the rangefinder 52 can also be set on a column, and an image acquisition method can also be set on the catwalk system to measure the relative height difference between the installed installation cable strand 42 and the installation cable strand 42 to be adjusted. It will not be described in detail here.

[0070] Reference Figure 2 In this embodiment, in order to facilitate the adjustment of the placement position of the installation cable strand 42 on the positioning frame 4 and to limit the installed installation cable strand 42. The tension assembly includes: a support beam 62, a limiting steel cable 6, and a rope clamp 61. The support beam 62 is arranged on the catwalk load-bearing cable 11, and the support beam 62 is arranged parallel to and opposite to the catwalk crossbeam 1. One end of the limiting steel cable 6 is wound around the support beam 62, and the limiting steel cable 6 is fixed at one end of the support beam 62 by a plurality of rope clamps 61. The other end of the limiting steel cable 6 is overlapped on the installation cable strand 42, and extends to the other end wound around the support beam 62, and the other end of the limiting steel cable 6 is also fixed at the other end of the support beam 62 by a plurality of rope clamps 61. In this embodiment, by controlling the stretching amount of the limiting steel cable 6, the support beam 62 is lifted, and the distance between the relative positions of the installation cable strand 42 and the support beam 62 is limited, so as to prevent the relative distance between the catwalk load-bearing cable 11 and the installation cable strand 42 from being too large, thereby avoiding affecting the installation position of the subsequent installation cable strand 42. In this embodiment, by providing the limiting steel cable 6, the support beam 62 and the rope clamp 61, on the one hand, the installation stability of the installation cable strand 42 is ensured, and on the other hand, the wind and earthquake resistance of the installation cable strand 42 is effectively enhanced.

[0071] Reference Figure 2 In this embodiment, in order to enhance the connection strength on the support beam 62 and the stability of the limiting steel cable 6, the elastic assembly further includes: a connecting ear piece 622, a diagonal support ear piece 22 and a supporting diagonal rod 221. The connecting ear piece 622 is arranged on the support beam 62, the diagonal support ear piece 22 is arranged on the side wall of the lower column 2, one end of the supporting diagonal rod 221 is hinged to the connecting ear piece 622, and the other end of the supporting diagonal rod 221 is hinged to the diagonal support ear piece 22, wherein the supporting diagonal rod 221 is obliquely arranged between the support beam 62 and the lower column 2. That is, the support beam 62 is fixed to the lower column 2 and the catwalk crossbeam 1 through the supporting diagonal rod 221 to form a whole, which effectively enhances the windproof and anti-shake ability of the installation cable strand 42. In addition, in this embodiment, in order to ensure the installation and positioning effect of the installation cable strand 42 on the positioning frame 4, a high-precision cable strand 421 is further installed inside the V-shaped groove structure of the positioning frame 4. The high-precision cable strand 421 is relatively arranged in the V-shaped groove structure of the positioning frame 4. By first installing the high-precision cable strand 421 in the V-shaped groove structure of the positioning frame 4 as a base point, the subsequent installation of the installation cable strand 42 can be used as a reference.

[0072] In this embodiment, the method for suppressing the position using the suppressing device includes the following steps:

[0073] Step 1: Build the main support frame on the catwalk beam 1;

[0074] Step 2: The bottom end of the telescopic sleeve 3 is mounted on the lower cross beam 24, and the positioning frame 4 is connected and arranged on the top end of the telescopic sleeve 3. The telescopic sleeve 3 is used to adjust the installation height of the cable strand 42;

[0075] Step 3: The positioning and distance measuring part is installed on the upper crossbeam 5, so that the positioning and distance measuring part is located on the positioning frame 4;

[0076] Step 4: Install the high-precision cable strand 421 in the V-shaped groove structure of the positioning frame 4, use the high-precision cable strand 421 as the base point coordinate, cooperate with the positioning distance meter 52 to install the cable strand 42, adjust the isolation height of the partition 41 in the positioning frame 4, and continue to put in the installation cable strand 42;

[0077] Step 5: Adjust the length of one end of the limiting steel cable 6, so that the limiting steel cable 6 is stretched tightly on the installation cable strand 42 as a whole, control the stretching amount of the limiting steel cable 6, let the limiting steel cable 6 lift the position of the supporting beam 62, and use the rope clamp 61 to limit and fix the lifted limiting steel cable 6 to prevent the catwalk load-bearing cable 11 from falling too much due to the influence of too many installation cable strands 42, and avoid the catwalk load-bearing cable 11 affecting the installation position of the installation cable strand 42.

[0078] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for restraining the erection of main cable strands of a suspension bridge, characterized in that: include: The supporting main frame is arranged on the catwalk crossbeam and is used to bear the force of the entire restraining device; An adjustment component, which is arranged on the supporting main frame and is used to adapt the height of the installed cable strands; A positioning frame, which is arranged on the adjustment assembly and is in a V-shaped frame, and is used to limit the lateral displacement of the installation cable strand; A positioning and ranging component, which is used to locate and measure the installation area of ​​the cable strands; Among them, the supporting main frame, the positioning frame and the adjustment assembly are all on the same vertical plane; A tensioning assembly, which is arranged on the catwalk crossbeam and is arranged opposite to the supporting main frame, and is used to limit the relative position between the installation cable strand and the catwalk load-bearing cable; Among them, the supporting main frame includes: Two sets of support parts, the two sets of support parts are arranged oppositely on the catwalk crossbeam; Among them, an upper crossbeam, a middle crossbeam and a lower crossbeam are arranged between the two groups of support parts from top to bottom, and the lower crossbeam, the middle crossbeam and the upper crossbeam are connected to the two support parts respectively; The upper crossbeam is connected to the positioning and ranging assembly, the bottom end of the adjustment assembly is connected to the lower crossbeam, the top end of the adjustment assembly is connected to the positioning frame, and the middle crossbeam is detachably connected to the positioning frame through a connecting plate; The adjustment components include: A telescopic sleeve, the bottom end of which is connected to the lower crossbeam, and the telescopic sleeve is arranged between the middle crossbeams; A telescopic column, wherein the bottom end of the telescopic column is connected to the top end of the telescopic sleeve, the top end of the telescopic column is connected to the positioning frame, and the telescopic column is parallel to the partition; Specifically, the telescopic sleeve includes: two sleeves, the diameters of the two sleeves are large and small, the small sleeve is slidably sleeved inside the large sleeve, through holes are provided on both the large and small sleeves, the through holes on the small sleeve and the large sleeve are at the same spacing, and the through holes on the small sleeve and the large sleeve are connected by bolts or pins; Among them, the positioning frame is a V-shaped groove structure composed of two inclined bearing plates; the two bearing plates are provided with multiple positioning grooves on the connected edges, and the positioning grooves are perpendicular to the V-shaped groove structure; the bearing plates are also provided with: A plurality of partitions are provided in the positioning grooves, the partitions are parallel to the angle bisectors of the V-shaped groove structure, and the partitions are used to separate the internal space of the V-shaped groove structure to form a plurality of accommodating grooves; Among them, the positioning and ranging components include: Multiple groups of distance measuring and positioning parts, which are arranged in parallel along the axial direction of the upper crossbeam, and the distance measuring and positioning parts are parallel to the receiving grooves on the partition plate; Specifically, the ranging and positioning unit includes: A positioning plate, which is arranged on the upper crossbeam and is close to the positioning frame; A rangefinder, one end of which is connected to the upper crossbeam, the rangefinder is located between the two positioning plates, and the distance measuring end of the rangefinder is vertically located in the receiving groove; The elastic components include: A support beam, the support beam is arranged on the catwalk load-bearing cable, and the support beam is arranged parallel to the catwalk crossbeam; A limiting steel cable, one end of which is wound around the support beam, and the limiting steel cable is fixed at one end of the support beam through a plurality of rope clamps; The other end of the limiting steel cable is overlapped on the installation cable strand and extended and wound around the other end of the support beam. The other end of the limiting steel cable is also fixed at the other end of the support beam through a plurality of rope clamps.

2. A suspension bridge main cable strand erection restraining device according to claim 1, characterized in that: The bearing plate is also provided with: A plurality of limit plates, wherein the limit plates are arranged on the bearing plate, the limit plates are located outside the V-shaped groove structure and are arranged parallel to the partition plates, and the limit plates are detachably connected to the partition plates; Two connecting plates, the two connecting plates are arranged opposite to each other along the angular bisector of the V-shaped groove structure, one end of the connecting plate is connected to the supporting main frame, and the top end of the connecting plate is connected to the bearing plate.

3. A suspension bridge main cable strand installation restraining device according to claim 2, characterized in that: The support portion comprises: A lower column, the bottom end of which is connected to the catwalk crossbeam, the bottoms of the two lower columns are connected through the lower crossbeam, and the two ends of the middle crossbeam are respectively connected to the two lower columns; An upper column, the bottom end of which is connected to the top end of the lower column, and the upper column is detachably connected to the lower column, and the top ends of the two upper columns are connected via an upper crossbeam.

4. A suspension bridge main cable strand erection restraining device according to claim 3, characterized in that: The elastic component also includes: A connecting lug, the connecting lug being arranged on the supporting beam; An oblique bracing ear piece, wherein the oblique bracing ear piece is arranged on the side wall of the lower column; A supporting diagonal rod, one end of which is hinged to the connecting ear piece, and the other end of which is hinged to the diagonal supporting ear piece; Wherein, the supporting diagonal rod is obliquely arranged between the supporting beam and the lower column.

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