CN115162201A - A suspension bridge main cable strand erection restraint device - Google Patents

Abstract

The invention discloses a position restraining device for erecting main cable strands of a suspension bridge, comprising: a supporting main frame, which is arranged on a catwalk beam, and the supporting main frame is used to receive the force of the entire restraining device; an adjustment component, The adjusting assembly is arranged on the supporting main frame, and the adjusting assembly is used to adapt to the height of the installation cable strands; the positioning frame. In the present invention, a positioning frame is arranged on the supporting main frame, the installation cable strands are passed through the positioning frame, and the V-shaped grooves on the positioning frame are used to limit the lateral displacement of the installation cable strands, so as to avoid the lateral displacement of the installation cable strands after erection and installation. . The positioning frame connects the installation cable strands, the catwalk load-bearing cables and the supporting main frame as a whole, which can effectively solve the shortcoming of the installation cable strands shaking under the influence of external forces during and after installation, which is convenient for the installation and management of the installation cable strands. . That is, the disadvantage of low erection efficiency caused by vibration or natural vibration of the cable strands under the influence of external force in the prior art is effectively solved.

Description

A suspension bridge main cable strand erection restraint device

technical field

The invention relates to the technical field of suspension bridges, in particular to a position restraining device for erecting main cable strands of a suspension bridge.

Background technique

The erection of the main cable strands of a suspension bridge is a key link in the construction of the suspension bridge. At present, the general cable strand erection method is the relative sag method. The relative sag method is mature in theory and has accumulated a lot of engineering experience, but when the span of the suspension bridge increases or the climatic conditions of the cable are not good, the cable strands will vibrate under the action of natural vibration or external force. The monitoring environment cannot be satisfied, and it is inconvenient to monitor the cable unit, resulting in low efficiency in the erection of the cable unit.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the disadvantage of low erection efficiency due to vibration or natural vibration of cable strands affected by external forces in the prior art, and proposes a position restraining device for erecting main cable strands of a suspension bridge.

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

A main cable strand erection restraint device for a suspension bridge, comprising:

Supporting the main frame, the supporting main frame is arranged on the catwalk beam, and the supporting main frame is used to undertake the force of the entire restraint device;

an adjustment assembly, the adjustment assembly is arranged on the support main frame, and the adjustment assembly is used to adapt to the height of the installation cable strands;

a positioning frame, the positioning frame is arranged on the adjustment assembly, the positioning frame is in the shape of a V-shaped frame, and the positioning frame is used to limit the lateral displacement of the installation cable strands;

a positioning and ranging component, the positioning and ranging component is used to perform positioning and ranging on the erection area of the installation cable strand;

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

An elastic assembly, the elastic assembly is arranged on the catwalk beam, the elastic assembly is arranged opposite to the supporting main frame, and the elastic assembly is used to limit the relative position between the installation cable strand and the catwalk load-bearing cable.

Optionally, the positioning frame is a V-shaped groove structure composed of two bearing plates arranged obliquely; the two bearing plates are provided with a plurality of positioning grooves on the adjoining sides, and the positioning grooves are perpendicular to the V-shaped grooves. shape groove structure; the carrier plate is also provided with:

A plurality of partitions, the partitions are arranged through the positioning groove, the partitions are parallel to the angle bisector of the V-shaped groove structure, and the partitions are used to carry out the internal space of the V-shaped groove structure. spaced apart to form a plurality of accommodating grooves;

a plurality of limit plates, the limit plates are arranged on the bearing plate, the limit plates are located away from the outside of the V-shaped groove structure, and the limit plates are arranged in parallel with the partition plates, so The limiting plate is detachably connected to the partition;

Two connecting plates, the two connecting plates are arranged opposite to each other along the angle bisector of the V-shaped groove structure, one end of the connecting plates is connected with the supporting main frame, and the top end of the connecting plates is connected with the carrying plate connected.

Optionally, the supporting main frame includes:

Two sets of support parts, the two sets of support parts are oppositely arranged on the catwalk beam;

Wherein, an upper beam, a middle beam and a lower beam are arranged between the two sets of support parts in sequence from top to bottom, and the lower beam, the middle beam and the upper beam are respectively connected to the two support parts ;

The upper beam is connected to the positioning and distance measuring assembly, the bottom end of the adjustment assembly is connected to the lower beam, the top end of the adjustment assembly is connected to the positioning frame, and the middle beam is connected to the middle beam through the support plate. The positioning frame is detachably connected.

Optionally, the support portion includes:

a lower column, the bottom end of the lower column is connected to the catwalk beam, the bottoms of the two lower columns are connected through the lower beam, and the two ends of the middle beam are respectively connected to the two lower columns;

The upper column, the bottom end of the upper column is connected with the top end of the lower column, the upper column is detachably connected to the lower column, and the top ends of the two upper columns are connected by an upper beam.

Optionally, the adjustment assembly includes:

a telescopic sleeve, the bottom end of the telescopic sleeve is connected with the lower beam, and the telescopic sleeve is arranged between the middle beams;

A telescopic column, the bottom end of the telescopic column is connected with the top end of the telescopic sleeve, the top end of the telescopic column is connected with the positioning frame, and the telescopic column is parallel to the partition plate.

Optionally, the positioning and ranging component includes:

Multiple sets of distance measuring and positioning parts are arranged in parallel along the axial direction of the upper beam, and the distance measuring and positioning parts are parallel to the accommodating grooves on the partition plate.

Optionally, the ranging and positioning unit includes:

a positioning plate, the positioning plate is arranged on the upper beam, and the positioning plate is close to the positioning frame;

A range finder, one end of the range finder is connected to the upper beam, the range finder is located between the two positioning plates, and a range finder end of the range finder is vertically positioned in the accommodating groove.

Optionally, the elastic assembly includes:

a support beam, the support beam is arranged on the catwalk load-bearing cable, and the support beam is arranged in parallel with the catwalk beam;

a limit wire rope, one end of the limit wire rope is wound on the support beam, and the limit wire rope is limited and fixed at one end of the support beam by a plurality of rope clips;

The other end of the limit wire is overlapped on the installation cable strand, and is extended and wound around the other end of the support beam, and the other end of the limit wire is also limited and fixed on the at the other end of the support beam.

Optionally, the elastic assembly further includes:

connecting lugs, the connecting lugs are arranged on the support beam;

a diagonal support lug, the diagonal support lug is arranged on the side wall of the lower column;

a support oblique rod, one end of the support oblique rod is hingedly connected with the connecting lug, and the other end of the support oblique rod is hingedly connected with the oblique support lug;

Wherein, the support oblique rod is inclined between the support beam and the lower column.

The beneficial effects of the present invention are:

In the present invention, a positioning frame is arranged on the supporting main frame, the installation cable strands are passed through the positioning frame, and the V-shaped grooves on the positioning frame are used to limit the lateral displacement of the installation cable strands, so as to avoid the lateral displacement of the installation cable strands after erection and installation. . At the same time, the installation cable strands are limited by the elastic components, so as to avoid excessive changes in the relative position between the catwalk load-bearing cable and the installation cable strands during the installation of the cable strands, and reduce other factors affecting the erection and installation of the installation cable strands, so as to facilitate the construction. Personnel carry out the installation of the installation cable strands. At the same time, the positioning frame connects the installation cable strands, catwalk load-bearing cables, and supporting main frame as a whole, so that the installation cable strands will not easily swing with external forces, effectively enhancing the distance between the installation cable strands, catwalk load-bearing cables, and positioning frames. connection strength. That is, it can effectively solve the shortcoming that the installation cable strands vibrate under the influence of external force during and after installation, and it is convenient to install and manage the installation cable strands. That is, the disadvantage of low erection efficiency caused by vibration or natural vibration of the cable strands under the influence of external force in the prior art is effectively solved. In addition, a positioning and ranging component and an adjustment component are also provided, so that the positioning and ranging component is convenient for measuring the distance of the installation cable strands, and it is convenient for the precise installation and management of the installation cable strands; the adjustment component can adapt to the work of adjusting the installation cable strands on the positioning frame. Height, to meet the actual construction requirements.

Description of drawings

Fig. 1 is the overall structure schematic diagram (front view) of a suspension bridge main cable strand erection restraint device provided in an embodiment of the present invention;

2 is a schematic diagram of the overall structure (side view direction) of a device for erecting a main cable strand of a suspension bridge provided in an embodiment of the present invention;

3 is a schematic structural diagram of a lower column of a suspension bridge main cable strand erection restraint device provided in an embodiment of the present invention;

Fig. 4 is the enlarged view of A part in Fig. 1;

5 is a cross-sectional view along the A-A direction in FIG. 4;

FIG. 6 is a partial structural schematic diagram of a positioning frame of a main cable strand erection restraint device of a suspension bridge provided in an embodiment of the present invention;

FIG. 7 is a schematic diagram of the structure of a partition plate of a device for erecting and restraining position of main cable strands of a suspension bridge according to an embodiment of the present invention.

The markers in the figure are as follows:

1. Catwalk beam; 11. Catwalk load-bearing cable;

2. Lower column; 21. Upper column; 22. Diagonal support lugs; 221. Supporting oblique rod; 23. Connecting sleeve; 24. Lower beam;

3. Telescopic sleeve; 31. Telescopic column; 32. Middle beam; 321. Limit block;

4. Positioning frame; 41. Partition; 411, Limiting plate; 42. Installation cable strand; 421, High-precision cable strand; 43. Connecting plate; 44. Positioning slot;

5. Upper beam; 51. Positioning plate; 52. Distance meter;

6. Limiting steel cable; 61, rope clip; 62, support beam; 621, support plate; 622, connecting lugs.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

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 relationship between various components under a certain posture (as shown in the accompanying drawings). The relative positional relationship, the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In the present invention, unless otherwise expressly specified and limited, the terms "connected", "fixed" and the like should be understood in a broad sense, for example, "fixed" may be a fixed connection, a detachable connection, or an integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal communication between two elements or an interaction relationship between the two elements, unless otherwise explicitly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

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 the purpose of description, and should not be construed as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the meaning of "and/or" in the whole text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, scheme B, or scheme satisfying both of A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present invention.

Example 1

1-7, a suspension bridge main cable strand erection restraint device, the restraint device is arranged on the catwalk beam 1, wherein, the catwalk beam 1 is a gantry erected on the catwalk load-bearing cable 11 The bottom beam, wherein the gantry is not shown in the accompanying drawings, the position restraining device uses the positioning frame 4 to limit the erected installation cable strands 42, and to limit the erected installation cable strands 42 laterally, Let the erected installation cable strands 42 be in the limited space of the positioning frame 4, and the positioning frame 4 erects itself in the catwalk system, so that the erected installation cable strands 42, the positioning frame 4 and the catwalk system are connected as a whole , to avoid the horizontal displacement of the erected installation cable strands 42 and the installation cable strands 42 located in the to-be-adjusted area on the restraint device due to the influence of wind, and to ensure the overall stability and wind resistance of the installation cable strands 42 . The influence of wind blowing on the installation cable strands 42 during erection and installation is reduced.

Specifically, the position restraining device includes: a supporting main frame, a positioning frame 4, an adjustment component, a positioning and distance measuring component, and an elastic component. The supporting main frame is arranged on the catwalk beam 1, and the supporting main frame is used to bear the force of the entire position restraining device. The adjustment assembly is disposed on the support main frame, and the adjustment assembly is used to adapt to the height of the installation cable strands 42 to avoid mutual influence of the installation cable strands 42 in the vertical direction. The positioning frame 4 is arranged on the adjusting assembly, and the positioning frame 4 is in the shape of a V-shaped frame, and the positioning frame 4 is used to limit the lateral displacement of the installation cable strands 42 . The positioning and ranging assembly is arranged on the supporting main frame, and the supporting main frame, the positioning frame 4 and the adjusting assembly are all on the same vertical plane, and the positioning and ranging assembly is located in the positioning Above the frame 4 , the positioning and distance-measuring component is used to locate and measure the erection position of the installation cable strands 42 on the positioning frame 4 , so as to adjust the installation position of the installation cable strands 42 . The elastic assembly is arranged on the catwalk beam 1, the elastic assembly is arranged opposite to the supporting main frame, and the elastic assembly is used to limit the relative relationship between the installation cable strand 42 and the catwalk load-bearing cable 11. position, to avoid the gap between the installation cable strands 42 and the catwalk load-bearing cable 11 being too large, which is inconvenient for construction personnel to adjust, install and erect. In this embodiment, by setting the positioning frame 4 on the supporting main frame, the installation cable strands 42 are passed through the positioning frame 4, and the V-shaped grooves on the positioning frame 4 are used to limit the lateral displacement of the installation cable strands 42 to avoid installation. The cable strands 42 undergo lateral displacement after erection and installation. At the same time, the installation cable strands 42 are limited by the elastic components, so as to avoid excessive changes in the relative position between the catwalk load-bearing cable 11 and the installation cable strands 42 when the installation cable strands 42 are erected, and reduce other factors affecting the erection and installation of the installation cable strands 42 so as to facilitate the installation of the installation cable strands 42 by the construction personnel, and at the same time, the positioning frame 4 connects the installation cable strands 42, the catwalk load-bearing cables 11, and the supporting main frame as a whole, so that the installation cable strands 42 will not easily swing with external forces. , which effectively enhances the connection strength between the installation cable strands 42 , the catwalk load-bearing cable 11 , and the positioning frame 4 . . That is, it can effectively solve the disadvantage that the installation cable strands 42 vibrate under the influence of external force during and after the installation, even if the installation cable strands 42 are installed and managed. That is, the disadvantage of low erection efficiency caused by vibration or natural vibration of the cable strands under the influence of external force in the prior art is effectively solved. In addition, a positioning and distance measuring component and an adjustment component are provided, so that the positioning and distance measuring component is convenient for the distance measurement of the installation cable strands 42 and facilitates the precise installation and management of the installation cable strands 42; the adjustment component can be adapted to adjust the installation cable strands on the positioning frame 4 42 working height to meet the actual construction requirements. It should be noted that, in this embodiment, the manner in which the positioning and distance-measuring component performs distance-finding and positioning on the installation position of the installation cable strands 42 is not limited to one. That is, the installation position of the positioning and ranging assembly can not only be set on the positioning frame 4 or the supporting main frame, but also can be set along the direction of the catwalk load-bearing cable. The relative position of the cable strand 42 and the installation cable strand 42 to be adjusted can be monitored in real time. I won't give too much overview here.

1 , 4 , 5 , 6 and 7 , the positioning frame 4 is two bearing plates (not shown in the drawings) arranged obliquely to form a V-shaped groove structure. The carrying plate is further provided with: a plurality of partition plates 41 , a plurality of limit plates 411 and two connecting plates 43 . A plurality of positioning grooves 44 are provided on the adjoining sides of the two carrying plates, and the positioning grooves 44 are perpendicular to the V-shaped groove structure. The spacer 41 is disposed through the positioning groove 44, the spacer 41 is parallel to the angle bisector of the V-shaped groove structure, and the spacer 41 is used to separate the inner space of the V-shaped groove structure. open to form a plurality of accommodating grooves, the positioning and distance measuring components are located above the accommodating grooves, and the mounting cable strands 42 are seated in the accommodating grooves. The limiting plate 411 is disposed on the carrier plate, the limiting plate 411 is located away from the outside of the V-shaped groove structure, and the limiting plate 411 is arranged in parallel with the partition plate 41 . A positioning hole (not shown in the figure) is provided on the position plate 411 , the position limit plate 411 is located on one side of the partition plate 41 , and the position limit plate 411 and the spacer plate 41 can pass through bolts and pins The shaft is detachably connected through the positioning hole. In this embodiment, after the partition plate 41 separates the inner space of the V-shaped groove structure, the partition plate 41 is limited and fixed by the limit plate 411 at this time, so as to prevent the partition plate 41 from moving in the positioning groove 44 . Sliding ensures the limiting effect of the partition plate 41 on the installation cable strands 42 . At the same time, when it is necessary to adjust the separation height of the partition plate 41 on the positioning frame 4, let the partition plate 41 slide inside the positioning groove 44, and after the adjustment is completed, let the limit plate 411 pass the pin or bolt to the partition plate 41. It is fixed so as to facilitate adjustment and control of the isolation depth of the partition plate 41 inside the V-shaped groove structure. The two connecting plates 43 are disposed opposite to each other along the angle bisector of the V-shaped groove structure. The connecting plate 43 is used for receiving part of the bearing stress of the V-shaped groove structure. In this embodiment, in order to ensure the lateral limitation of the number of installation cable strands 42 inside the V-shaped groove structure, partition plates 45 are provided on both ends of the V-shaped groove structure that are far away from each other. The plate 45 is arranged in parallel with the partition plate 41 . That is, the two partition plates 45 are vertically connected to both ends of the V-shaped groove structure, which can effectively prevent the installation cable strands 42 from falling out of the inner space of the V-shaped groove structure. At the same time, it is also convenient for the partitions 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 carrying plates are integrally formed.

1 and 4, in this embodiment, in order to facilitate the connection between the positioning frame 4 and the connecting plate 43, the carrying board is an L-shaped board, and the two carrying boards are arranged in mirror images, and two The two side plates on the carrying plate are connected to form a V-shaped groove structure. The other two side plates on the two carrying plates are respectively plugged with the connecting plates 43 . In this embodiment, in order to ensure the supporting strength of the connecting plate 43 to the two bearing plates and to ensure the number of strands of the V-shaped groove structure, the V-shaped opening angle of the V-shaped groove structure composed of 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° and so on.

In this embodiment, the supporting main frame includes: two sets of supporting parts, a lower beam 24 , a middle beam 32 and an upper beam 5 . Two sets of support parts are arranged oppositely on the catwalk beam 1 , and the support parts are used to support and bear the bearing stress on the entire positioning frame 4 and the adjustment assembly. The lower beam 24 , the middle beam 32 and the upper beam 5 are arranged laterally between the two sets of support parts from top to bottom, and the lower beam 24 , the middle beam 32 and the upper beam The beams 5 are respectively connected with the two support parts. The upper beam 5 is connected to the positioning and ranging assembly, one end of the adjustment assembly is connected to the lower beam 24, and the middle 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 is adjusted to adapt to the installation position of the installation cable strands 42 . In this embodiment, a positioning and ranging assembly is installed on the upper beam 5 , and the positioning and ranging assembly is used for positioning and ranging on the erection area of the installation cable strands, and is installed and adjusted on the middle beam 32 and the lower beam 24 The positioning and distance-measuring components and the adjustment components are on the same vertical line as the positioning frame 4. On the one hand, the main frame supports the positioning and distance-measuring components, the adjustment components and the positioning frame 4. On the other hand, it is also convenient to describe The distance measuring component is positioned to measure the distance, and the adjustment component is used to adjust the working height of the installation cable strand 42 .

In this embodiment, in order to ensure that the positioning range finder 52 can adjust the distance measurement height on the support portion, the support portion can adjust the height up and down. Specifically, a group of the support parts includes: an upper column 21 and a lower column 2 . The bottom end of the lower column 2 is connected with the catwalk beam 1 , the bottoms of the two lower columns 2 are connected by a lower beam 24 , and the two ends of the middle beam 32 are respectively connected to the two lower columns 2 . The bottom end of the upper column 21 is connected with the top end of the lower column 2 , and the upper column 21 is slidably connected in the lower column 2 . The top ends of the two upper columns 21 are connected by an upper beam 5 .

In this embodiment, the lower column 2 and the upper column 21 are both square tube 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 be placed in the lower column. Sliding in the 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, the outer walls of the upper column 21 and the lower column 2 are provided with a plurality of groups of through holes (not shown in the figure), The spacing between the through holes on the upper column 21 and the lower column 2 is the same, so as to precisely control the sliding position of the upper column 21 on the lower column 2 . The through holes 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 to 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 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, and the diameter of the clamping plate is greater than The hole diameter of the lower column 2 is long, which can effectively prevent the upper column 21 from sliding down completely to the inside of the upper column 21 . In this embodiment, in order to prevent the middle beam 32 from interfering with the operation of the telescopic sleeve 23 , the middle beam 32 is two horizontal plates (not shown in the figure), and the two horizontal plates are relatively connected below the connecting plate 43 , and both ends of the two horizontal plates are connected with the lower column 2 through the connecting sleeve 23. In addition, in this embodiment, in order to prevent the telescopic sleeve 3 from being displaced between the two horizontal plates, the two horizontal plates Limiting blocks 321 are provided for each, two of the limiting blocks 321 and the two horizontal plates form a rectangular frame, and the telescopic sleeve 3 is positioned in the rectangular frame to limit the position.

In this embodiment, in order to ensure the adjustment and support effect of the adjustment assembly on the positioning frame 4, the adjustment assembly is provided with two groups, the adjustment assemblies of the two groups are arranged oppositely, and the bottom end of the adjustment assembly passes through the middle beam 32 is connected with the lower beam 24 , and the top end of the adjusting assembly is connected with the positioning frame 4 . Specifically, a group of adjustment assemblies are used as an example for description here. The adjustment assemblies include: a telescopic sleeve 3 and a telescopic column 31 . The bottom end of the telescopic sleeve 3 is connected with the lower beam 24 , the bottom end of the telescopic column 31 is connected with the top end of the telescopic sleeve 3 , and the top end of the telescopic column 31 is connected with 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 . Controlling the telescopic height of the telescopic column 31 through the telescopic sleeve 3 can effectively adjust the support height of the positioning frame 4 on the telescopic column 31 , and also adjust the working height of the installation cable strands 42 on the positioning frame 4 . In addition, in this embodiment, the structure of the telescopic sleeve 3 is the same as that of the support portion. 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 connected to the inside of the large sleeve, and the large and small sleeves are provided with through holes. The distance between the through holes on the small sleeve and the large sleeve is consistent, so as to precisely control the sliding position of the small sleeve on the large sleeve. The through holes 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 turn to 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 to the inside of the large sleeve, a fixed plate (not shown in the figure) is provided at the top of the small sleeve, and the diameter of the fixed plate is greater than The diameter of the large sleeve is long, which can effectively prevent the small sleeve from sliding down completely to the inside of the small sleeve.

In this embodiment, in order to ensure the supporting and bearing effect of the middle beam 32 on the telescopic sleeve 3 and the positioning frame 4 . The two ends of the middle beam 32 are respectively provided with connecting sleeves 23, the two connecting sleeves 23 are respectively sleeved on the two lower columns 2, and the connecting sleeves 23 are connected with each other through bolts or pins. The lower column 2 is detachably connected. The middle beam 32 is also provided with a limit block 321 , and the telescopic sleeve 3 is connected to the middle beam 32 through the limit block 321 . In this embodiment, by connecting the telescopic sleeve 3 with the middle beam 32 , when the telescopic sleeve 3 adjusts the bearing height of the positioning frame 4 through the telescopic column 31 , the middle beam 32 will also follow the telescopic direction of the telescopic sleeve 3 . The position is adjusted so that the middle beam 32 can support and bear the positioning frame 4 through the connecting plate 43 , so as to ensure the working strength of the positioning frame 4 .

Referring to FIG. 1 , the positioning and ranging assembly is provided on the upper beam 5 , and the positioning and ranging assembly includes: multiple sets of ranging positioning parts, and multiple sets of the ranging positioning parts are along the axis of the upper beam 5 . The distance measuring and positioning portion is parallel to the gap between the two partition plates 41 on the positioning frame 4 , and the distance measuring and positioning portion is used for distance measuring and positioning of the installation cable strands 42 between the partition plates 41 . The multiple sets 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 erected installation cable strands and the installation cable strands to be adjusted in the vertical relative position, so as to facilitate the follow-up Precise control. Specifically, a group of the positioning and ranging units will be used for description. The positioning and distance measuring part includes: a positioning plate 51 and a distance meter 52 , the positioning plate 51 is arranged on the upper beam 5 , and the positioning plate 51 is close to the positioning frame 4 . One end of the range finder 52 is connected to the upper beam 5 , and the range finder end of the range finder 52 is vertically positioned in the accommodating groove, so that the range finder 52 can be installed on the cable strands in the accommodating groove. 42 Perform positioning and ranging. In this embodiment, in order to avoid mutual interference between the plurality of distance meters 52 , the distance meters 52 are arranged between two adjacent positioning plates 51 . That is, the distance meter 52 is separated by the positioning plate 51 . In this embodiment, the range finder 52 may be a laser range finder or a sound wave range finder. In this embodiment, the range finder 52 can also be arranged on a column, or an image acquisition method can be arranged on the catwalk system to measure the relative heights of the erected installation cable strands 42 and the installation cable strands 42 to be adjusted. Difference. I won't go into details here.

Referring to FIG. 2 , in this embodiment, in order to facilitate adjustment of the placement position of the installation cable strands 42 on the positioning frame 4 and to limit the position of the erected installation cable strands 42 . The elastic assembly includes: a support beam 62 , a limit wire 6 , and a rope clip 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 beam 1 . One end of the limit wire 6 is wound around the support beam 62 , and the limit wire 6 is limited and fixed at one end of the support beam 62 by a plurality of rope clips 61 . The other end of the limit wire 6 is overlapped on the installation cable strand 42 and extends to the other end of the support beam 62, and the other end of the limit wire 6 also passes through a plurality of rope clips 61 is limited and fixed at the other end of the support beam 62 . In this embodiment, by controlling the stretching amount of the limit wire 6, the support beam 62 is lifted, and the distance between the relative positions of the installation cable strands 42 and the support beam 62 is limited, so as to prevent the catwalk load-bearing cable 11 The relative position distance from the installation cable strands 42 is too large to avoid affecting the installation position of the subsequent installation cable strands 42 . In this embodiment, by setting the limit wire 6 , the support beam 62 and the rope clamp 61 , on the one hand, the installation stability of the installation cable strands 42 is ensured, and on the other hand, the installation cable strands 42 are also effectively strengthened. wind and shock resistance.

Referring to FIG. 2 , in this embodiment, in order to enhance the connection strength on the support beam 62 and the stability of the limit wire 6 . The elastic assembly further includes: connecting lugs 622 , diagonal bracing lugs 22 and supporting diagonal rods 221 . The connecting lugs 622 are arranged on the supporting beams 62 , the diagonal bracing lugs 22 are arranged on the side walls of the lower column 2 , and one end of the supporting diagonal rods 221 is hinged with the connecting lugs 622 . , the other end of the support inclined rod 221 is hingedly connected with the diagonal support lug 22 , wherein the support inclined 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 beam 1 through the support inclined rod 221 to form a whole, which effectively enhances the wind and anti-shake capability of the installation cable strand 42 . In addition, in this embodiment, in order to ensure the installation and positioning effect of the installation cable strands 42 on the positioning frame 4, the V-shaped groove structure of the positioning frame 4 is also provided with high-precision cable strands 421. The cable strands 421 are relatively arranged in the V-shaped groove structure of the positioning frame 4. By first erecting the high-precision cable strands 421 in the V-shaped groove structure of the positioning frame 4 as a base point, the subsequent erection of the installation cable strands 42 can be compared. effect.

In the present embodiment, the suppression method utilizing the suppression device comprises the following steps:

Step 1: Build a supporting main frame on the catwalk beam 1;

Step 2: the bottom end of the telescopic sleeve 3 is installed on the lower beam 24, the positioning frame 4 is connected and arranged on the top of the telescopic sleeve 3, and the telescopic sleeve 3 is used to adjust the erection height of the installation cable strand 42;

Step 3: The positioning and ranging part is installed on the upper beam 5, and the positioning and ranging part is located on the positioning frame 4;

Step 4: Install the high-precision cable strands 421 in the V-shaped groove structure of the positioning frame 4, take the high-precision cable strands 421 as the base point coordinates, and cooperate with the positioning range finder 52 to erect, install and install the cable strands 42, and adjust the partition 41 in the positioning The isolation height in the frame 4, continue to put the installation cable strands 42;

Step 5: Adjust the length of one end of the limit wire 6 so that the limit wire 6 is stretched on the installation cable strands 42 as a whole, and the stretching amount of the limit wire 6 is controlled, so that the limit wire 6 can support the beam. Lift the position of 62, and use the rope clip 61 to limit and fix the lifted limit wire 6 to prevent the catwalk load-bearing cable 11 from being affected by too many installation cable strands 42. The erection position of the cable strand 42 .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (9)

1. A suspension bridge main cable strand erection restraining device is characterized in that, comprising: Supporting the main frame, the supporting main frame is arranged on the catwalk beam, and the supporting main frame is used to undertake the force of the entire restraint device; an adjustment assembly, the adjustment assembly is arranged on the support main frame, and the adjustment assembly is used to adapt to the height of the installation cable strands; a positioning frame, the positioning frame is arranged on the adjustment assembly, the positioning frame is in the shape of a V-shaped frame, and the positioning frame is used to limit the lateral displacement of the installation cable strands; a positioning and ranging component, the positioning and ranging component is used to perform positioning and ranging on the erection area of the installation cable strand; Wherein, the supporting main frame, the positioning frame, and the adjusting assembly are all on the same vertical plane; An elastic assembly, the elastic assembly is arranged on the catwalk beam, the elastic assembly is arranged opposite to the supporting main frame, and the elastic assembly is used to limit the relative position between the installation cable strand and the catwalk load-bearing cable. 2 . The device for erecting and restraining position of main cable strands of a suspension bridge according to claim 1 , wherein the positioning frame is a V-shaped groove structure composed of two bearing plates arranged obliquely; A plurality of positioning grooves are arranged on the connecting edge, and the positioning grooves are perpendicular to the V-shaped groove structure; the carrying board is also provided with: A plurality of baffles, the baffles are arranged through the positioning groove, the baffles are parallel to the angle bisector of the V-shaped groove structure, and the baffles are used to divide the inner space of the V-shaped groove structure. spaced apart to form a plurality of accommodating grooves; a plurality of limit plates, the limit plates are arranged on the bearing plate, the limit plates are located away from the outside of the V-shaped groove structure, and the limit plates are arranged in parallel with the partition plates, so The limiting plate is detachably connected to the partition; Two connecting plates, the two connecting plates are arranged opposite to each other along the angle bisector of the V-shaped groove structure, one end of the connecting plates is connected with the supporting main frame, and the top end of the connecting plates is connected with the carrying plate connected. 3. The device for erecting and restraining the main cable strands of a suspension bridge according to claim 2, wherein the supporting main frame comprises: Two sets of support parts, the two sets of support parts are oppositely arranged on the catwalk beam; Wherein, an upper beam, a middle beam and a lower beam are arranged between the two sets of support parts in sequence from top to bottom, and the lower beam, the middle beam and the upper beam are respectively connected to the two support parts ; The upper beam is connected to the positioning and distance measuring assembly, the bottom end of the adjustment assembly is connected to the lower beam, the top end of the adjustment assembly is connected to the positioning frame, and the middle beam is connected to the middle beam through the support plate. The positioning frame is detachably connected. 4. The device for erecting and restraining the main cable strands of a suspension bridge according to claim 3, wherein the support portion comprises: a lower column, the bottom end of the lower column is connected to the catwalk beam, the bottoms of the two lower columns are connected through the lower beam, and the two ends of the middle beam are respectively connected to the two lower columns; The upper column, the bottom end of the upper column is connected with the top end of the lower column, the upper column is detachably connected to the lower column, and the top ends of the two upper columns are connected by an upper beam. 5. The device for erecting and restraining the main cable strands of a suspension bridge according to claim 4, wherein the adjustment assembly comprises: a telescopic sleeve, the bottom end of the telescopic sleeve is connected with the lower beam, and the telescopic sleeve is arranged between the middle beams; A telescopic column, the bottom end of the telescopic column is connected with the top end of the telescopic sleeve, the top end of the telescopic column is connected with the positioning frame, and the telescopic column is parallel to the partition plate. 6 . The device for erecting and restraining the main cable strands of a suspension bridge according to claim 5 , wherein the positioning and ranging assembly comprises: Multiple sets of distance measuring and positioning parts are arranged in parallel along the axial direction of the upper beam, and the distance measuring and positioning parts are parallel to the accommodating grooves on the partition plate. 7 . The device for erecting and restraining the main cable strands of a suspension bridge according to claim 6 , wherein the distance measuring and positioning part comprises: a positioning plate, the positioning plate is arranged on the upper beam, and the positioning plate is close to the positioning frame; A range finder, one end of the range finder is connected to the upper beam, the range finder is located between the two positioning plates, and a range finder end of the range finder is vertically positioned in the accommodating groove. 8. The device for erecting and restraining the main cable strands of a suspension bridge according to any one of claims 4-7, wherein the elastic assembly comprises: a support beam, the support beam is arranged on the catwalk load-bearing cable, and the support beam is arranged in parallel with the catwalk beam; a limit wire rope, one end of the limit wire rope is wound on the support beam, and the limit wire rope is limited and fixed at one end of the support beam by a plurality of rope clips; The other end of the limit wire is overlapped on the installation cable strand, and is extended and wound around the other end of the support beam, and the other end of the limit wire is also limited and fixed on the at the other end of the support beam. 9 . The device for erecting and restraining the main cable strands of a suspension bridge according to claim 8 , wherein the elastic assembly further comprises: connecting lugs, the connecting lugs are arranged on the support beam; a diagonal support lug, the diagonal support lug is arranged on the side wall of the lower column; a support oblique rod, one end of the support oblique rod is hingedly connected with the connecting lug, and the other end of the support oblique rod is hingedly connected with the oblique support lug; Wherein, the support oblique rod is inclined between the support beam and the lower column.

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