阅读说明：本技术 斜拉桥索塔区的梁段安装架及其安装方法 (Beam section mounting rack of cable-stayed bridge cable tower area and mounting method thereof ) 是由 夏江南 李鸿文 刁先觉 王海伟 陈杨 唐代新 刘怀刚 高世强 陈振宇 张华武 于 2019-10-31 设计创作，主要内容包括：本申请涉及建筑桩基施工技术领域,本申请提供一种斜拉桥索塔区的梁段安装架及其安装方法,所述梁段安装架包括：支架、若干个下承重梁、与所述下承重梁对应设置的若干个上承重梁和位移机构；所述支架包括多个分支架,每个分支架沿着所述斜拉桥索塔的竖直方向设置,所述分支架通过预埋件与索塔区的塔柱固定连接；所述下承重梁沿着横桥向固定在索塔区的塔柱两侧的所述分支架顶部；若干个所述上承重梁沿着顺桥向、且对称设置在索塔区的塔柱两侧的下承重梁上；所述位移机构沿着所述位移机构沿着上承重梁的延伸方向设置,用于承载所述梁段在所述梁段安装架上进行移动。本申请提供的梁段安装架使得索塔区梁段可以在较大的工作平台上实现精准定位。(The application relates to the technical field of building pile foundation construction, and provides a beam section mounting rack of a cable-stayed bridge cable tower area and a mounting method thereof, wherein the beam section mounting rack comprises: the displacement mechanism comprises a support, a plurality of lower bearing beams, a plurality of upper bearing beams arranged corresponding to the lower bearing beams and a displacement mechanism; the support comprises a plurality of branch supports, each branch support is arranged along the vertical direction of the cable-stayed bridge cable tower, and the branch supports are fixedly connected with the tower columns of the cable tower area through embedded parts; the lower bearing beam is fixed on the tops of the branch frames on two sides of the tower column in the cable tower area along the transverse bridge direction; the upper bearing beams are symmetrically arranged on the lower bearing beams on two sides of the tower column in the cable tower area along the bridge direction; the displacement mechanism is arranged along the extending direction of the upper bearing beam along the displacement mechanism and is used for bearing the beam section to move on the beam section mounting frame. The application provides a beam section mounting bracket makes cable tower district beam section can realize accurate location on great work platform.)

1. The utility model provides a beam section mounting bracket in cable-stay bridge cable tower district which characterized in that includes:

the displacement mechanism comprises a support, a plurality of lower bearing beams, a plurality of upper bearing beams arranged corresponding to the lower bearing beams and a displacement mechanism;

the support comprises a plurality of branch supports, each branch support is arranged along the vertical direction of the cable-stayed bridge cable tower, and the branch supports are fixedly connected with the tower columns of the cable tower area through embedded parts;

the lower bearing beam is fixed on the tops of the branch frames on two sides of the tower column in the cable tower area along the transverse bridge direction;

the upper bearing beams are symmetrically arranged on the lower bearing beams on two sides of the tower column in the cable tower area along the bridge direction;

the displacement mechanism is arranged along the extending direction of the upper bearing beam along the displacement mechanism and is used for bearing the beam section to move on the beam section mounting frame.

2. The beam segment mount of claim 1, further comprising:

the embedded part comprises an embedded anchor bar, a conical sleeve sleeved on the outer side of the embedded anchor bar and a first lug plate fixed on the outer side of a tower column of the cable tower area through the conical sleeve; the embedded part is fixedly connected with the branch frame through the first ear plate.

3. The beam segment mount of claim 2,

the branch frame comprises a plurality of stand columns, and a parallel connection and an inclined strut which are fixedly connected among the stand columns, the stand columns comprise near-tower side stand columns and far-tower side stand columns, and the branch frame fixedly connects the near-tower side stand columns with the tower columns in the cable tower area through the buttress rod pieces.

4. The beam segment mount of claim 3,

the buttress rod piece comprises a second lug plate, and the second lug plate and the first lug plate are correspondingly arranged and are fixedly connected in a related mode.

5. The beam segment mount of claim 3,

each branch frame comprises a plurality of frame subsections divided along the vertical direction of the branch frame.

6. The beam segment mount of claim 5,

the partial support subsections comprise at least two near-tower side upright columns, two far-tower side upright columns, corresponding parallel connection and inclined struts;

and the lower bearing beam is fixedly connected to the tops of the support subsections at the top ends of the two sides of the tower column in the cable tower area along the transverse bridge direction.

7. The beam segment mount of claim 3,

the far tower side upright post and the vertical direction form an included angle of 3-10 degrees, and the distance between the near tower side upright post and the far tower side upright post on the same plane is gradually reduced along the direction far away from the lower bearing beam.

8. The beam segment mount of claim 1,

the displacement mechanism comprises a sliding groove arranged on the upper bearing beam and a displacement device movably arranged on the sliding groove.

9. The beam segment mount of claim 8,

and a cushion block is arranged between the sliding chute and the lower cross beam of the tower column in the cable tower area below the sliding chute.

10. The beam segment mount of claim 1, further comprising:

and a safe operation platform is arranged at the top of the support and on the outer side of the upper bearing beam.

11. A method for installing a beam section installation rack of a cable-stayed bridge cable tower area, which is used for erecting the beam section installation rack of the cable-stayed bridge cable tower area as claimed in any one of claims 1 to 10; the method is characterized by comprising the following steps:

dividing the support into a plurality of branch supports along the vertical direction of the tower column, and mounting branch support sections on each branch support along the vertical direction one by one;

installing embedded parts at positions corresponding to the branch frames fixed on the tower column, and fixedly connecting each branch frame to the tower column in the cable tower area by using the embedded parts to be connected with the buttress rod pieces;

the top parts of the branch frames on the two sides of the tower column along the transverse bridge are fixedly connected with lower bearing beams, and the lower bearing beams on the two sides of the tower column along the transverse bridge are symmetrically provided with upper bearing beams;

and a displacement mechanism is arranged on the upper bearing beam and is used for bearing the beam section to move on the beam section mounting frame.

12. The method of installation according to claim 11, wherein:

the step of connecting the embedded part with the buttress rod piece comprises the following steps:

embedding the embedded anchor bars at the positions of the tower columns of the cable tower area corresponding to the buttress rod pieces, and sleeving conical sleeves on the outer sides of the embedded anchor bars;

fixing a first lug plate positioned outside a tower column of the cable tower area by using the conical sleeve;

and connecting the first ear plate with the branch frame.

13. The method of installation according to claim 12, wherein:

for each mounting bracket section, the mounting comprises:

and fixing the distance between the near-tower side upright post and the far-tower side upright post by utilizing the parallel connection and the inclined strut between the upright posts of each support frame section.

14. The installation method according to claim 13,

and fixedly connecting the second lug plate with the first lug plate to fixedly connect the buttress rod piece with the embedded part on the branch frame.

15. The installation method according to claim 13,

the step of utilizing the buttress rod pieces to be connected with the embedded parts and fixedly connecting each branch frame to the tower column of the cable tower area comprises the following steps:

and connecting the buttress rod piece with the embedded part at the corresponding position, and fixedly connecting the tower-side upright post close to each support subsection of each branch frame to the tower column of the cable tower area, so that each branch frame is fixedly connected to the tower column of the cable tower area.

16. The method of installation according to claim 13, wherein:

and arranging the far tower side upright post at an included angle of 3-10 degrees with the vertical direction, so that the distance between the near tower side upright post and the far tower side upright post on the same plane is gradually reduced along the direction far away from the lower bearing beam.

17. The method of installation according to claim 11, wherein:

along horizontal bridge to the pylon both sides the step that the symmetry set up the spandrel girder on the spandrel girder includes:

and upper bearing beams are symmetrically arranged at two ends of the lower bearing beam at two sides of the tower column along the transverse bridge direction, and the upper bearing beams positioned at the same end of the lower bearing beam are arranged on the same straight line.

18. The installation method according to claim 11,

the step of providing a displacement mechanism on the upper load beam includes:

the upper bearing beam is provided with a sliding chute in parallel;

and a plurality of displacement devices are arranged on the sliding chute in a sliding manner, and a jack is arranged on each displacement device.

19. The installation method according to claim 18,

before the step of parallel arrangement spout on the last spandrel girder, still include:

and a cushion block is arranged between the sliding chute and the lower cross beam of the tower column in the cable tower area below the sliding chute.

20. The method of installation according to claim 11, further comprising:

and arranging safe operation platforms on two sides of the tower column in the cable tower area along the bridge direction of the cable-stayed bridge and at the joint position of the beam section, and arranging protective guards on the outer sides of the safe operation platforms.

[ technical field ] A method for producing a semiconductor device

The application relates to the technical field of cable-stayed bridge construction, in particular to a beam section mounting frame in a cable tower area of a cable-stayed bridge and a mounting method thereof.

[ background of the invention ]

In the construction of a cable-stayed bridge, particularly the assembly of a steel box girder section of the cable-stayed bridge, the girder section is generally positioned and installed section by section in a hoisting mode, but the construction difficulty is increased due to the fact that the mode is easily influenced by environmental factors such as water, wind speed and the like, and the assembly error of the steel box girder section is easily caused.

For the cable-stayed bridge cable tower area beam section, the cable-stayed bridge cable tower cross beam needs to be directly built, and a first pair of stay cables of the cable-stayed bridge are installed, so that the effect of starting and starting before and after the subsequent beam section is installed is achieved. However, the installation process of the beam sections involves procedures such as transferring and positioning the beam sections and butting the beam sections, and if the procedures can be accurately completed, the installation process plays an important role in the construction of the cable-stayed bridge.

[ summary of the invention ]

In order to meet the requirement of the beam section installation precision of a cable tower area, the application specially provides the following technical scheme:

in a first aspect, the present application provides a beam section mounting bracket in cable-stayed bridge cable tower area, including:

a beam segment mounting bracket in a cable-stayed bridge cable tower area, comprising:

the displacement mechanism comprises a support, a plurality of lower bearing beams, a plurality of upper bearing beams arranged corresponding to the lower bearing beams and a displacement mechanism;

the support comprises a plurality of branch supports, each branch support is arranged along the vertical direction of the cable-stayed bridge cable tower, and the branch supports are fixedly connected with the tower columns of the cable tower area through embedded parts;

the lower bearing beam is fixed on the tops of the branch frames on two sides of the tower column in the cable tower area along the transverse bridge direction;

the upper bearing beams are symmetrically arranged on the lower bearing beams on two sides of the tower column in the cable tower area along the bridge direction;

the displacement mechanism is arranged along the extending direction of the upper bearing beam along the displacement mechanism and is used for bearing the beam section to move on the beam section mounting frame.

In one embodiment, the beam segment mounting bracket further includes:

the embedded part comprises an embedded anchor bar, a conical sleeve sleeved on the outer side of the embedded anchor bar and a first lug plate fixed on the outer side of a tower column of the cable tower area through the conical sleeve; the embedded part is fixedly connected with the buttress rod piece through the first ear plate.

In one embodiment, the branch frame comprises a plurality of upright posts and a flat connection and an inclined strut between the upright posts, the upright posts comprise a near-tower side upright post and a far-tower side upright post, and the branch frame fixedly connects the near-tower side upright post with a tower post in the cable tower area through a buttress rod piece.

In one embodiment, the buttress rod member comprises a second ear plate, and the second ear plate is arranged corresponding to the first ear plate and is fixedly connected with the first ear plate in a related manner.

In one embodiment, each of the sub-brackets comprises a plurality of sub-sections divided along the vertical direction.

In one embodiment, the partial bracket subsection comprises at least two near-tower side upright columns, two far-tower side upright columns and corresponding parallel connection and inclined struts;

and the lower bearing beam is fixedly connected to the tops of the support subsections at the top ends of the two sides of the tower column in the cable tower area along the transverse bridge direction.

In one embodiment, the far tower side upright post forms an included angle of 3-10 degrees with the vertical direction, and the distance between the near tower side upright post and the far tower side upright post which are positioned on the same plane is gradually reduced along the direction far away from the lower bearing beam.

In one embodiment, the displacement mechanism includes a slide groove provided on the upper bearing beam, and a displacement device that moves the slide groove.

In one embodiment, a spacer is arranged between the chute and the lower cross member of the tower in the pylon region located therebelow.

In one embodiment, the beam segment mount further comprises:

and a safe operation platform is arranged at the top of the support and on the outer side of the upper bearing beam.

In a second aspect, the present application further provides a method for installing a beam segment installation frame in a cable-stayed bridge tower area, which is used for constructing the beam segment installation frame in the cable-stayed bridge tower area according to any one embodiment of the first aspect; the method comprises the following steps:

a method for installing a beam section installation frame in a cable-stayed bridge cable tower area comprises the following steps:

dividing the support into a plurality of branch supports along the vertical direction of the tower column, and mounting branch support sections on each branch support along the vertical direction one by one;

installing embedded parts at positions corresponding to the branch frames fixed on the tower column, and fixedly connecting each branch frame to the tower column in the cable tower area by using the embedded parts to be connected with the buttress rod pieces;

the top parts of the branch frames on the two sides of the tower column along the transverse bridge are fixedly connected with lower bearing beams, and the lower bearing beams on the two sides of the tower column along the transverse bridge are symmetrically provided with upper bearing beams;

and a displacement mechanism is arranged on the upper bearing beam and is used for bearing the beam section to move on the beam section mounting frame.

In one embodiment, the step of connecting the counterfort members with the embedded members includes:

embedding the embedded anchor bars at the positions of the tower columns of the cable tower area corresponding to the buttress rod pieces, and sleeving conical sleeves on the outer sides of the embedded anchor bars;

fixing a first lug plate positioned outside a tower column of the cable tower area by using the conical sleeve;

and connecting the first ear plate with the buttress rod piece.

In one embodiment, the mounting for each strut section comprises:

and fixing the distance between the near-tower side upright post and the far-tower side upright post by utilizing the parallel connection and the inclined strut between the upright posts of each support frame section.

In one embodiment, the step of fixedly connecting each branch frame to the tower column of the cable tower area by using the buttress rod to connect with the embedded part comprises the following steps:

and connecting the buttress rod piece with the embedded part at the corresponding position, and fixedly connecting the tower-side upright post close to each support subsection of each branch frame to the tower column of the cable tower area, so that each branch frame is fixedly connected to the tower column of the cable tower area.

In one embodiment, the far tower side upright post is arranged at an included angle of 3-10 degrees with the vertical direction, so that the distance between the near tower side upright post and the far tower side upright post which are positioned on the same plane is gradually reduced along the direction far away from the lower bearing beam.

In one embodiment, the step of symmetrically arranging the upper bearing beams on the lower bearing beams at two sides of the transverse bridge tower column comprises:

and upper bearing beams are symmetrically arranged at two ends of the lower bearing beam at two sides of the tower column along the transverse bridge direction, and the upper bearing beams positioned at the same end of the lower bearing beam are arranged on the same straight line.

In one embodiment, the step of providing a displacement mechanism on the upper load beam includes:

the upper bearing beam is provided with a sliding chute in parallel;

and a plurality of displacement devices are arranged on the sliding chute in a sliding manner, and a jack is arranged on each displacement device.

In one embodiment, before the step of arranging the sliding grooves in parallel on the upper bearing beam, the method further includes:

and a cushion block is arranged between the sliding chute and the lower cross beam of the tower column in the cable tower area below the sliding chute.

In one embodiment, the installation method further includes:

and arranging safe operation platforms on two sides of the tower column in the cable tower area along the bridge direction of the cable-stayed bridge and at the joint position of the beam section, and arranging protective guards on the outer sides of the safe operation platforms.

Compared with the prior art, the method has the following advantages:

the application provides a beam section mounting bracket in cable-stayed bridge cable tower district, through the outrigger of the bilateral symmetry's of following the bridge at the column, the range of the elevation on the top of each stand of every outrigger is a less scope to every outrigger is the vertical setting of a plurality of branches sub-frame. The lower bearing beam and the upper bearing beam which are perpendicular to each other on the branch frame 110 are used for bearing and fixing, and the moving mechanism is arranged and used for transporting and positioning the beam section in the cable tower area, so that the beam section in the cable tower area can be accurately displaced and positioned on a large working platform, and the butt joint between the beam sections in the cable tower area is completed.

[ description of the drawings ]

FIG. 1 is a front view of a beam segment mounting bracket of a cable-stayed bridge pylon region provided by the present application;

FIG. 2 is a side view of a beam segment mounting bracket of a cable-stayed bridge pylon region provided by the present application;

FIG. 3 is a schematic view of an embedded part in a beam section installation frame of a cable-stayed bridge tower region provided by the present application;

FIG. 4 is a schematic view in the direction B of FIG. 3;

FIG. 5 is a schematic view of a buttress rod in a beam segment mounting bracket in a cable-stayed bridge pylon area according to the present application;

FIG. 6 is a schematic view of the position relationship of the slide groove and the spacer;

FIG. 7 is a schematic flow chart illustrating a method of installing a beam segment installation frame in a cable-stayed bridge pylon region according to the present application;

fig. 8 is a schematic flow chart of the connection between the buttress rod and the embedded part in the installation method of the beam section installation frame in the cable-stayed bridge tower region provided by the application.

[ detailed description ] embodiments

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

Referring to fig. 1-2, fig. 1 is a front view of a beam segment mounting block of a cable-stayed bridge pylon region provided herein, and fig. 2 is a side view of the beam segment mounting block of the cable-stayed bridge pylon region provided herein. The utility model provides a beam section mounting bracket in cable-stayed bridge cable tower district that provides includes support 100, a plurality of lower spandrel girder 200, with a plurality of that spandrel girder 200 corresponds the setting go up spandrel girder 300 and displacement mechanism 400 down.

Wherein the support 100 comprises a plurality of branch supports 110, each branch support 110 is arranged along the vertical direction of the tower 1000 of the cable tower area, and an equal number of branch supports 110 are respectively arranged along the bridge direction. In this embodiment, two branch frames 110, which are a first branch frame 111 and a second branch frame 112 on the shore side, and a third branch frame 113 and a fourth branch frame 114 on the center side, are respectively disposed on both sides of the tower column 1000 in the cable tower region along the bridgewise direction. The two sub-frames 110 located at each side of the tower column 1000 are respectively disposed at both ends of the tower column 1000 in the transverse bridge direction, and are located opposite to the two sub-frames 110 located at the other side of the tower column 1000. That is, the first sub-frame 111 is disposed opposite to the third sub-frame 113 across the tower 1000, and the third sub-frame 113 is disposed opposite to the third sub-frame 113 across the tower 1000. The beam section mounting frame further comprises embedded parts 1100, and each branch frame 110 is fixedly connected to the tower column 1000 in the cable tower area through the embedded parts 1100. The embedded part 1100 is embedded in the tower column 1000 and fixedly connected with the buttress rod 120 of the extension frame 154 of the parallel connection 151 of each branch frame 110.

Referring to fig. 3-4, fig. 3 is a schematic view of an embedded part in a beam section installation frame of a cable-stayed bridge cable tower region provided by the application, and fig. 4 is a schematic view in the direction B of fig. 3.

The embedded part 1100 comprises embedded anchor bars 1110, a conical sleeve 1120 sleeved outside the embedded anchor bars 1110, a first ear plate 1130 fixed outside the tower column 1000 of the cable tower area through the conical sleeve 1120, and a stiffening plate 1140 positioned inside the first ear plate 1130.

Referring to fig. 5, fig. 5 is a schematic view of a buttress rod in a beam segment mounting bracket in a cable-stayed bridge pylon region provided by the present application.

In this embodiment, a second ear plate 121 corresponding to the first ear plate 1130 is also provided for the buttress rod 120 corresponding to the embedded part 1100, and in order to reinforce the connecting and fixing effects of the two ear plates, a reinforcing plate 1132 is provided at the inner side of the second ear plate 121 and the periphery of the through hole 1131, and stiffening plates 1140 are provided at two sides of the reinforcing plate 1132 which are perpendicular to and clamp the reinforcing plate 1132.

When the sub-frame 110 is connected to the tower column 1000, the screw is inserted into the through holes of the first lug plate 1130 and the second lug plate 121.

In this embodiment, the embedded anchor bars 1110 are six embedded anchor bars arranged in parallel, and are arranged symmetrically left and right, and each side includes three embedded anchor bars arranged in parallel. For the three embedded anchor bars located on the same side, the two first embedded anchor bars 1111 located on the outer side are provided with reinforcing hooks bent outwards to reinforce the fixation of the embedded part 1100 to the tower column 1000, so as to ensure the fixing effect of the embedded part 1100 to the branch frame 110 attached to the tower column 1000. The conical sleeves 1120 are arranged on the inner sides, close to the wall surface of the tower column 1000, of the embedded anchor bars 1110, each embedded anchor bar 1110 is correspondingly provided with one conical sleeve 1120, and the embedded anchor bars 1110 are fixed inside the wall body of the tower column 1000, so that the fixing effect of the embedded part 1100 on the tower column 1000 is further enhanced. The tapered sleeve 1120 is tapered in diameter from the wall of the tower 1000 toward the inside so as to be inserted into the wall of the tower 1000. The end portion of each embedded anchor 1110 located at the outer side of the wall of the tower 1000 is a screw head 1112, a first ear plate 1130 is fixed between the screw head 1112 and the wall of the tower 1000, and a reinforcing plate 1132 is arranged at the inner side of the first ear plate 1130 and the periphery of the through hole 1131 to increase the tensile strength of the first ear plate 1130. Stiffening plates 1140 are disposed on two sides of the vertical and clamping stiffening plates 1132 to enhance the force of the embedded part 1100 on the split bracket 110.

Above the branch frame 110, a lower bearing beam 200 is provided. The lower bearing beam 200 is specifically fixed to the tops of the branch frames at both sides of the tower column 1000 along the transverse bridge direction. In this embodiment, the lower bearing beam 200 includes a first lower bearing beam 211 and a second lower bearing beam 212 fixed above the first sub-bracket 111 and the third sub-bracket 113, and a third lower bearing beam 213 and a fourth lower bearing beam 214 fixed above the second sub-bracket 112 and the fourth sub-bracket 114.

And a plurality of the upper load bearing beams 300 are disposed above the lower load bearing beam 200. The upper bearing beams 300 are symmetrically arranged on the lower bearing beams 200 at two sides of the tower column 1000 along the bridge direction. The stiffening blocks are respectively added on two sides of the joint of the lower bearing beam 200 and the upper bearing beam 300 so as to increase the supporting effect of the lower bearing beam 200 on the upper bearing beam 300.

The displacement mechanism 400 is mounted on the upper bearing beam 300 and is disposed along the extending direction thereof. The displacement mechanism 400 is used for moving the beam section 2000 in the cable tower area to the installation position along the bridge direction, accurately positioning and temporarily fixing the beam section 2000 and the cross beam in the cable tower area, and then installing the corresponding stay cable.

For each of the above-mentioned sub-frames 110 including the first sub-frame 111, the second sub-frame 112, the third sub-frame 113 and the fourth sub-frame 114, it includes a plurality of vertical columns 130, and a parallel connection 151 and a diagonal brace 152 between the vertical columns, and the vertical columns 130 include a near-tower-side vertical column 131 and a far-tower-side vertical column 132. In the present embodiment, each of the sub-frames 110 includes two proximal tower side uprights 131 and two distal tower side uprights 132, which are oppositely disposed. The branch frame 110 fixedly connects the near-tower side upright 131 with the embedded part 1100 of the tower column 1000 through the buttress rod 120.

Along the vertical direction of each branch frame 110, the support frame comprises a plurality of support frame subsections 140. In the present embodiment, the first sub-rack 111 is described as including 4 rack segments 140, and the first rack segment 141, the second rack segment 142, the third rack segment 143, and the fourth rack segment 144 are arranged from the lower side to the upper side.

In each sub-frame 110, a pair of sub-frame sections 140 is provided, which includes at least two proximal tower side uprights and two distal tower side uprights, and corresponding parallel links 151 and diagonal braces 152. In the present embodiment, the bracket subsections 140 provided with the parallel connection 151 and the inclined strut 152 are arranged at intervals. Also illustrated as the first sub-frame 111, two parallel links 151 and a diagonal brace 152 are provided in the horizontal direction of one of the two proximal tower-side uprights 131 and the two distal tower-side uprights 132 of the second frame section 142. The parallel connection 151 connects the near-tower-side upright 131 and the far-tower-side upright 132 to form a square frame. The inclined struts 152 are connected with the connecting points of the parallel connection 151 and the near-tower-side upright 131 and the far-tower-side upright 132 respectively, and the two inclined struts 152 located on the same plane form a scissor strut 153, so that a reinforcing effect is formed on the relative positions of the near-tower-side upright 131 and the far-tower-side upright 132.

The level error of the top surfaces of all the columns of each outrigger 110 is controlled within 5mm to control the installation accuracy of the beam section 2000 of the cable-stayed bridge tower region.

In the present embodiment, the far tower side upright 132 of each branch frame 110 forms an angle of 3-10 ° with the vertical direction, that is, the angle is formed with the near tower side upright 131 in the same plane, so that the distance between the near tower side upright and the far tower side upright in the same plane gradually increases from the ground surface to the top surface and gradually decreases in the direction away from the lower bearing beam 200. The support force gathered toward the platform of the tower 1000 is formed by combining all the sub-frames 110 to stabilize the support function of all the sub-frames 110, and the area of the working platform formed by all the sub-frames 110 can be enlarged to install the extension range of the lower bearing beam 200, the upper bearing beam 300 and the displacement mechanism 400.

And the fourth support shelf segment 144 at the top is also provided with a parallel link 151 and a diagonal brace 152. In the present embodiment, in order to strengthen the fixing of the fourth support frame section 144 and the supporting function of the lower bearing beam 200 and the upper bearing beam 300 above the fourth support frame section, two cross braces 153 are arranged between the forward tower side upright 131 and the far tower side upright 132 of the section, and a reinforcing rod 155 is arranged between the two cross braces 153.

The lower bearing beam 200 is fixedly connected to the tops of the fourth support frame sections 144 at the top ends of the branch frames 110 at both sides of the tower column 1000 along the transverse bridge direction.

The displacement mechanism 400 includes a slide groove 410 provided on the upper bearing beam 300, and a displacement device 420 movably provided on the slide groove 410.

In this embodiment, each of the upper bearing beams 300 is respectively disposed at the top end of each of the sub-frames 110 along the transverse direction, and the two upper bearing beams 300 on the same side along the transverse direction are located on the same straight line. Specifically, the first upper bearing beam 310 is disposed at one end of the first lower bearing beam 211 and the second lower bearing beam 212, and the second upper bearing beam 320 is disposed at the same end of the third lower bearing beam 213 and the fourth lower bearing beam 214 on the other side of the tower 1000, and the first upper bearing beam 310 and the second upper bearing beam 320 are located on the same straight line. In this way, the displacement mechanism 400 can be mounted on the first upper load beam 310 and the second upper load beam 320 at the same end.

Referring to fig. 6, fig. 6 is a schematic view of the position relationship between the slide groove and the pad. A spacer block 500 is arranged between the upper bearing beam 300 and the lower cross beam 1200 of the tower column 1000 located therebelow. On the basis of the arrangement of the upper bearing beams 300, the cushion block 500 is arranged between two upper bearing beams 300 which are positioned on the same straight line, and is used for reinforcing the supporting function of the sliding chute 410. In this embodiment, the spacer 500 includes a damping spacer 510 disposed in the middle, and the displacement device 420 performs a shock absorbing function when sliding on the sliding groove 410.

The top of the bracket 100 and the outer side of the upper bearing beam 300 further include a safety operation platform, and a guardrail and a skirting board can be arranged on the safety operation platform, so that the beam section can be conveniently transported, installed and positioned by workers.

The application provides a beam section mounting bracket in cable-stayed bridge cable tower district, through the branch frame of the equal quantity of bilateral symmetry in the same direction as the bridge at king-post 1000, the range of the elevation on the top of each stand of every branch frame 110 is a less scope to every branch frame 110 is the vertical setting of a plurality of branch sub-frames. The lower bearing beam 200 and the upper bearing beam 300 which are perpendicular to each other on the branch frame 110 are used for bearing and fixing, and the moving mechanism 400 is used for transporting and positioning the beam section 2000 in the cable tower area, so that the beam section 2000 in the cable tower area can be accurately displaced and positioned on a larger working platform, and the butt joint between the beam sections in the cable tower area is completed.

Referring to fig. 7, fig. 7 is a schematic flow chart illustrating a method for installing a beam segment installation frame in a cable-stayed bridge tower region according to the present application.

Based on the technical scheme of the structure of the beam section installation frame of the cable-stayed bridge cable tower area, the application provides an installation method of the beam section installation frame of the cable-stayed bridge cable tower area, which comprises the following steps:

s710, dividing the support 100 into a plurality of sub-supports along the vertical direction of the tower 1000, and installing a sub-support section on each sub-support along the vertical direction;

s720, installing embedded parts 1100 at positions corresponding to the branch frames fixed on the tower column 1000, and fixedly connecting each branch frame to the tower column 1000 in the cable tower area by using the embedded parts 1100 to be connected with the buttress rod member 120;

s730, fixedly connecting lower bearing beams 200 to the tops of branch frames on two sides of a tower column 1000 along a transverse bridge, and symmetrically arranging upper bearing beams 300 on the lower bearing beams 200 on two sides of a cable tower along the transverse bridge;

and S740, arranging a displacement mechanism 400 on the upper bearing beam 300, wherein the displacement mechanism is used for bearing the beam section 2000 to move on the beam section 2000 building support.

For steps S710 to S740, the support 100 is divided into a plurality of sub-supports 110 to be built, and the sub-supports 110 are installed one by one in a vertical direction with respect to the tower 1000. Since the sub-frame 110 is composed of a plurality of sub-frame sections, some sub-frame sections include the parallel links 151 and the diagonal struts 152. The parallel connection 151 is provided with an extension frame 154 towards the direction of the tower column 1000 to be fixedly connected with the tower column 1000.

In this embodiment, the tower column 1000 in the cable tower region is provided with two branch brackets, which are a first branch bracket 111 and a second branch bracket 112 on the shore side, and a third branch bracket 113 and a fourth branch bracket 114 on the center of the river side, along the two sides in the bridgewise direction.

Each of the branch frames 110 is installed one by one from the bottom up. To illustrate the first sub-bracket 111, the near-tower-side column 131 of the first bracket section 141 is installed first, and then the far-tower-side column 132 is fixedly installed. After the first support frame section 141 is installed, the second support frame section 142 is installed, namely, the near-tower side upright 131 is installed first, the far-tower side upright 132 is installed later, and then the parallel connection 151 is installed, so that the near-tower side upright 131 and the far-tower side upright 132 are connected to form a square frame. The connection points of the parallel connection 151 and the near tower side upright 131 and the far tower side upright 132 are connected by inclined struts 152.

A parallel link 151 and a diagonal brace 152 are also provided on the fourth support frame section 144 at the top end. In the present embodiment, in order to enhance the fixing of the fourth support frame section 144 and the supporting function of the lower bearing beam 200 and the upper bearing beam 300 above the fourth support frame section, two cross braces 153 are disposed between the forward tower side upright 131 and the far tower side upright 132 on which the section is installed, and a reinforcing rod 155 is disposed between the two cross braces 153.

The distance between the near-tower-side upright 131 and the far-tower-side upright 132 is fixed by installing a parallel connection 151 and a diagonal brace 152 between the near-tower-side upright 131 and the far-tower-side upright 132, so as to play a role of reinforcing and fixing the whole branch frame 110.

The two diagonal braces 152 located on the same plane form a scissor brace 153, which further enhances the fixing function for the relative positions of the proximal tower-side upright 131 and the distal tower-side upright 132.

When the branch frame 110 is built, the embedded part 1100 is installed at the position of the tower column 1000 corresponding to the extension frame 154, and the extension frame 154 is provided with the corresponding buttress rod 120 near one end of the embedded part 1100. Each branch frame 110 is fixedly connected with the tower column 1000 through the fixed connection of the embedded part 1100 and the buttress rod 120.

After all the branch frames 110 are built, the top ends of all the upright columns are subjected to elevation, and the error of the elevation is set within 5mm, so that the follow-up installation errors of the lower bearing beam 200, the upper bearing beam 300 and the displacement mechanism 400 are controlled within a small range, and the follow-up accurate positioning of the beam section 2000 is facilitated.

After the elevation is completed and the column is adjusted, the lower bearing beams 200 are fixed on the tops of the sub-supports 110 respectively located at both sides of the tower column 1000 in the direction of the cross bridge, so that the lower bearing beams 200 are parallel to each other. In this embodiment, the lower load-bearing beam 200 includes a first lower load-bearing beam 211, a second lower load-bearing beam 212, a third lower load-bearing beam 213, and a fourth lower load-bearing beam 214. The first lower bearing beam 211 and the second lower bearing beam 212 are fixed above the far tower side upright 132 and the near tower side upright 131 of the first sub-bracket 111 and the third sub-bracket 113, respectively, and the third lower bearing beam 213 and the fourth lower bearing beam 214 are fixed above the near tower side upright 131 and the far tower side upright 132 of the second sub-bracket 112 and the fourth sub-bracket 114, respectively. Further, all the lower bearing beams 200 are arranged in the transverse direction and parallel to each other.

When the installation of all the lower bearing beams 200 is completed, the upper bearing beam 300 is installed on the lower bearing beams 200 along the bridge direction. In this embodiment, the stiffening blocks are additionally disposed on two sides of the joint between the lower bearing beam 200 and the upper bearing beam 300, so as to increase the supporting effect of the lower bearing beam 200 on the upper bearing beam 300.

The displacement mechanism 400 is provided on the upper bearing beam 300. In this embodiment, the runner 410 of the displacement mechanism 400 is mounted over the upper bearing beam 300 in the bridge-wise direction for supporting the beam section 2000 of the pylon region above the beam section 2000 for transportation.

The step of fixedly connecting each branch frame 110 to the tower column 1000 in the cable tower area by using the embedded part 1100 to connect with the buttress rod 120 may specifically include:

the buttress rod 120 is connected with the embedded part 1100 at the corresponding position, and the near-tower side upright post of each support subsection of each branch frame 110 is fixedly connected to the tower column 1000 in the cable tower area, so that each branch frame 110 is fixedly connected to the tower column 1000 in the cable tower area.

For each sub-frame 110, the near-tower-side upright 131 is closer to the tower 1000 than the far-tower-side upright 132, the near-tower-side upright 131 is fixed to the corresponding embedded part 1100 of the tower 1000 by the extension frame 154 and the buttress rod member 120, the sub-frame corresponding to the near-tower-side upright 131 is fixed to the tower 1000, and the sub-frame 110 which can be completely fixedly connected to the tower 1000 is formed by combining with other sub-frames directly fixed to the tower 1000.

For the whole branch frame 110, the far tower side upright 132 of each branch frame 110 forms an included angle of 3-10 ° with the vertical direction, that is, the far tower side upright 132 is gradually far away from the tower column from bottom to top, so that the distance between the near tower side upright 131 and the far tower side upright 132 on the same plane is gradually increased from bottom to top, that is, gradually decreased along the direction far away from the lower bearing beam 200.

Fig. 8 is a schematic flow chart of the connection between the buttress rod and the embedded part in the installation method of the beam section installation frame in the cable-stayed bridge tower region provided by the application.

The step of connecting the buttresses rods 120 with the embedded parts 1100 comprises the following steps:

s810, pre-burying the pre-buried anchor bars 1110 at the positions of the tower columns 1000 of the cable tower area corresponding to the buttress rod pieces 120, and sleeving conical sleeves 1120 on the outer sides of the pre-buried anchor bars 1110;

s820, fixing the first ear plate 1130 outside the tower 1000 in the cable tower region by using the cone-shaped sleeve 1120;

s830, connecting the first ear plate 1130 to the sub-frame 110.

When the support subsections are fixedly connected by using the embedded parts 1100, that is, the buttress rods 120 and the embedded parts 1100 are connected in steps S810-S840, the embedded parts 1100 are arranged at the positions of the buttress rods 120 of each support subsection corresponding to the tower column 1000. Specifically, the embedded anchor bars 1110 of the embedded part 1100 are embedded in the side, close to the wall, of the tower column 1000 in advance, so that screw heads 1112 located at the end of the embedded part just protrude out of the wall of the tower column 1000. The tapered sleeve 1120 of each pre-embedded anchor 1110 is rotated toward the screw head 1112 and clamped by the first ear plate 1130 between the tapered sleeve 1120 and the screw head 1112, and the first ear plate 1130 is fixed on the outer side of the wall surface of the tower 1000. In order to enhance the tensile strength of the first ear plate 1130, a reinforcing plate 1132 is additionally arranged on the inner side of the first ear plate 1130 and on the periphery of the through hole 1131, and stiffening plates 1140 are arranged on two sides which are perpendicular to and clamp the reinforcing plate 1132. After the fixing and reinforcing assembly of the first ear plate 1130 is completed, it is connected to the buttress rod 120 at the corresponding position. In this embodiment, the buttress rod 120 is also provided with a second ear plate 121 corresponding to the first ear plate 1130, and a reinforcing plate 1132 is also arranged on the inner side of the second ear plate 121 and on the periphery of the through hole, and reinforcing plates 1140 are arranged on two sides perpendicular to and clamping the reinforcing plate 1132.

On this basis, when the branch frame 110 is fixedly connected to the tower column 1000, the screw rods are fixedly connected to the through holes of the first lug plate 1130 and the second lug plate 121, so that the buttress rod 120 is fixedly connected to the embedded part 1100 on the branch frame 110.

The step of symmetrically arranging the upper load-bearing beams 300 on the lower load-bearing beams 200 at both sides of the transverse bridging tower 1000 in step S730 includes:

and upper bearing beams are symmetrically arranged at two ends of the lower bearing beam 200 at two sides of the tower column 1000 in the transverse bridge direction, and the upper bearing beams 300 positioned at the same end of the lower bearing beam 200 are arranged on the same straight line.

In this embodiment, each of the upper bearing beams 300 is disposed at the top end of each of the sub-frames 110 in the transverse bridge direction. Further, the first upper bearing beam 310 is disposed at one end of the first lower bearing beam 211 and the second lower bearing beam 212, the second upper bearing beam 320 is disposed at the same end of the third lower bearing beam 213 and the fourth lower bearing beam 214 on the other side of the tower 1000, and the first upper bearing beam 310 and the second upper bearing beam 320 are disposed on the same straight line.

For the step of providing the displacement mechanism 400 on the upper bearing beam 300 in step S740, the method includes:

s741, sliding grooves 410 are arranged on the upper bearing beam 300 in parallel;

and step 742, sliding a plurality of displacement devices 420 on the sliding groove 410, and arranging a jack on the displacement devices 420.

In steps S741 to S742, the sliding grooves 410 on the same side in the lateral bridge direction are disposed on the upper bearing beam 300 in parallel, and the sliding grooves 410 are connected and supported by the upper bearing beam 300. The sliding grooves 410 on both sides in the transverse direction are arranged in the same manner as the upper bearing beam 300, and are also located on both ends of the lower bearing beam 200.

A plurality of displacement devices 420 are mounted on the sliding grooves 410, and the sliding grooves 410 respectively positioned at two ends of the lower bearing beam 200 are used for carrying and positioning the beam section 2000 of the cable tower area to a specified mounting position along the bridge direction. Furthermore, jacks are provided on the displacement device 420 in order to adjust and support the height of both ends of the beam section 2000.

Before step S741, the method further includes:

a spacer 500 is arranged between the chute 410 and the lower cross member 1200 of the tower 1000 in the pylon region located therebelow.

In this embodiment, the first upper bearing beam 310 and the second upper bearing beam 320 are respectively disposed at the same end of the lower bearing beam 200, and the first upper bearing beam 310 and the second upper bearing beam 320 are disposed on the same straight line. The cushion block 500 is arranged between the chute 410 and the lower cross beam 1200 of the tower 1000 in the cable tower area below the chute 410, so that a corresponding support is arranged between the chute 410 and the lower cross beam 1200 of the tower 1000 below the chute, and the chute 410 is guaranteed to be easy to deform or even damage due to lack of support when bearing the beam section 2000.

After step S740, the method further includes:

and S750, arranging safety operation platforms on two sides of the tower column 1000 in the cable tower area along the bridge direction and at the joint position of the beam section 2000, and arranging a protective guard on the outer side of the safety operation platforms.

A safety operation platform is further arranged at the top of the bracket 100 and outside the upper bearing beam 300, and a guardrail and a skirting board can be arranged on the safety operation platform so as to facilitate the transportation, installation and positioning of the beam section 2000 by workers.

The application provides a method for installing a beam section installation frame in a cable-stayed bridge cable tower area, through the branch frame 110 that sets up equal quantity in the bilateral symmetry of the tower column 1000 along the bridge direction to carry out the elevation to the top of each stand of every branch frame 110, set the range of elevation for a less scope, and set up every branch frame 110 to the vertical setting of a plurality of branch sub-frames. The lower bearing beam 200 and the upper bearing beam 300 which are perpendicular to each other and arranged on the branch frame 110 are supported and fixed, the moving mechanism 400 is installed, and the beam section 2000 in the cable tower area is transported and positioned, so that the accurate displacement and positioning of the beam section can be realized on a larger working platform by the cable tower area beam section 2000, and the butt joint between the cable tower area beam sections is completed.

Although a few exemplary embodiments of the present application have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these exemplary embodiments without departing from the principles and spirit of the application, the scope of which is defined in the claims and their equivalents.