CN110396943B

CN110396943B - Steel arch segmental moving and hoisting system and method for upper bearing arch bridge construction

Info

Publication number: CN110396943B
Application number: CN201910780242.XA
Authority: CN
Inventors: 任高峰; 朱朋刚; 王�锋; 张亮; 孙鹏; 唐辉
Original assignee: Third Engineering Co Ltd of China Railway 20th Bureau Group Co Ltd
Current assignee: Third Engineering Co Ltd of China Railway 20th Bureau Group Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2024-02-27
Anticipated expiration: 2039-08-22
Also published as: CN110396943A

Abstract

The invention discloses a steel arch segmental moving and hoisting system and a method for upper bearing arch bridge construction, wherein the system comprises a cable crane for hoisting arch frame assembled segments and an arch frame segmental transferring device for moving the arch frame assembled segments one by one; the arch frame sectional transferring device comprises an assembling section moving device for horizontally moving the assembling sections of the arch frame one by one and a horizontal moving channel for horizontally moving the assembling section moving device, and the horizontal moving channel is arranged on the rear side beam section supporting structure; the method comprises the following steps: 1. constructing a support structure at the lower part of the bridge; 2. constructing a cable crane and an arch frame sectional transferring device; 3. and assembling the steel arch frame. The invention has reasonable design and good use effect, the arch frame sectional transferring device is matched with the cable crane for use, the arch frame sectional transferring device moves the arch frame assembly section to the lifting area of the cable crane, and the cable crane lifts the arch frame assembly section in place, so that the steel arch frame assembly process can be simply, conveniently and rapidly completed.

Description

Steel arch segmental moving and hoisting system and method for upper bearing arch bridge construction

Technical Field

The invention belongs to the technical field of bridge construction, and particularly relates to a steel arch frame segmental moving and hoisting system and method for upper bearing arch bridge construction.

Background

The upper bearing arch bridge is a bridge with bridge deck system set on the main bearing structure of bridge span, and the arch base transmits the thrust of the arch rib end to the bedrock. The abutment for supporting the ribs is a permanent abutment, typically a reinforced concrete structure supported on bedrock. When the arch rib is an upper bearing type box arch bridge of a reinforced concrete box girder, the arch rib is usually cast-in-situ by adopting a steel arch frame erected in place in advance. And after the arch rib is cast and formed, dismantling the steel arch.

Today, steel arches are commonly three-dimensional steel trusses assembled from a plurality of straight bars. The cable crane is a special type of hoisting equipment, has a plurality of unique advantages, is not limited by climate and topography, can play roles which cannot be played by other hoisting machinery under specific conditions, and is widely applied to engineering construction. The expressway and railway bridges often meet the conditions that brackets cannot be erected or hoisting machinery cannot be used for construction when crossing heavy mountain areas, and because the cost for building temporary roads in mountain areas is too high, the construction technology for erecting brackets in rivers and lakes is difficult, the factors such as inconvenient traffic guidance and the like brought by crossing existing lines are caused, and cable hoisting becomes the most economical and reasonable scheme selection in road and railway construction, and particularly, the construction technology research on the bridge crossing large rivers, cliffs, rivers, lakes and the like and crossing the existing lines has larger development space.

When the steel arch of the upper bearing arch bridge is assembled and erected by adopting a cable hoisting method, the construction operation is more random, no set of unified and standard construction method can be followed, and the steel truss has large volume and large weight and is difficult to assemble. Meanwhile, because the hoisting range of the cable crane is limited, hoisting equipment is required to be equipped on site to hoist the steel truss section which is assembled and formed in advance into the hoisting range of the cable crane, but because the constructed upper bearing arch bridge spans a heavy mountain area, the construction environment is unfavorable and the construction space is limited, the normal use of the hoisting equipment is greatly limited.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art, and provides a steel arch subsection moving and hoisting system for the construction of an overhead arch bridge, which has reasonable structural design, simple and convenient use and operation and good use effect, and the arch subsection transferring device is matched with a cable crane for use, so that the arch subsection transferring device can simply and rapidly move an arch assembly subsection to a hoisting area of the cable crane, and the cable crane can hoist the moved arch assembly subsection in place, thereby being capable of simply and rapidly completing the steel arch assembly process.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a steel bow member segmental motion and hoist system for construction of upper supporting arch bridge which characterized in that: the device comprises a cable crane for hoisting the arch frame assembling sections of the assembled steel arch frame and an arch frame sectional transferring device for moving the arch frame assembling sections one by one;

the assembled steel arch is a steel arch for constructing the arch rib of the constructed upper bearing arch bridge, is arranged along the longitudinal bridge direction and is formed by splicing a plurality of arch assembly sections arranged from front to back along the longitudinal bridge direction; the front end and the rear end of the arch rib are respectively supported on a permanent support, and the permanent support is a reinforced concrete support; the arch ribs are distributed along the longitudinal bridge direction and are reinforced concrete arch rings, and the arch ribs are supported right above the assembled steel arch frames; the constructed upper-bearing arch bridge comprises an arch rib and a main girder supported on the arch rib, wherein the front end and the rear end of the main girder are respectively supported on a bridge abutment, the main girder is horizontally arranged and comprises a middle girder section supported on the arch rib and two side girder sections respectively positioned on the front side and the rear side of the middle girder section, the middle girder section is connected between the two side girder sections and is arranged along the longitudinal bridge direction, and the middle girder section is fixedly connected with the arch rib through a plurality of vertical upright posts arranged along the longitudinal bridge direction from front to rear; each side beam Duan Xiafang is provided with a plurality of support piers which are vertically arranged from front to back along the longitudinal bridge, the support piers are reinforced concrete piers, each side beam Duan Jun is supported on one abutment and a plurality of support piers, and one abutment and a plurality of support piers supported by each side beam Duan Xiafang form a side beam section support structure; the two side beam section supporting structures are respectively a front side beam section supporting structure positioned at the front side of the arch rib and a rear side beam section supporting structure positioned at the rear side of the arch rib, and the two permanent supports are respectively a front side support positioned below the front end of the arch rib and a rear side support positioned below the rear end of the arch rib;

The arch frame sectional transferring device comprises an assembling segment moving device for horizontally moving the assembling segments of the arch frame one by one and a horizontal moving channel for horizontally moving the assembling segment moving device, wherein the horizontal moving channel is horizontally arranged and is arranged along a longitudinal bridge direction;

the horizontal moving channel is arranged on the rear side beam section supporting structure, and the rear side beam section supporting structure is a moving channel supporting structure; the horizontal moving channel comprises a longitudinal supporting beam supported on the moving channel supporting structure, the assembly segment moving device is a horizontal moving device which can move back and forth on the longitudinal supporting beam and drive the assembly segments of the moved arch to synchronously move in the moving process, and the longitudinal supporting beam is horizontally arranged and is arranged along the longitudinal bridge direction; the horizontal moving device is arranged on the longitudinal supporting beam, and the movable arch frame assembly section is horizontally supported on the horizontal moving device; the rear end of the longitudinal supporting beam is an abutment supporting end supported on an abutment in the moving channel supporting structure, and the front end of the longitudinal supporting beam is a hoisting end; a horizontal limiting piece for limiting the horizontal moving device is arranged on the lifting end of the longitudinal supporting beam;

The cable crane comprises a front tower, a rear tower, working ropes arranged on the two towers and a trolley capable of moving back and forth along the working ropes and hoisting the arch frame assembly sections, the trolley is arranged on the working ropes and positioned between the two towers, and the trolley is positioned above the arch ribs; the two towers, the arch rib and the longitudinal supporting beam are positioned on the same vertical surface, and the two towers are respectively a front tower positioned at the front side of the arch rib and a rear tower positioned at the rear side of the arch rib;

the front side beam section supporting structure comprises a front side beam section supporting structure, a rear side beam section supporting structure and a rear side beam section supporting structure, wherein a supporting pier column positioned at the forefront side in the rear side beam section supporting structure is a front pier column, a lifting end of a longitudinal supporting beam is positioned at the front side of the rear tower, the lifting end of the longitudinal supporting beam is supported on the front pier column, and the longitudinal supporting beam is a horizontal supporting beam penetrating through the middle part of the rear tower; the rear tower and the front pier are both supported on the rear support, and the front pier is located on the front side of the rear tower.

Above-mentioned steel bow member segmental motion and hoist system for overhead arch bridge construction, characterized by: the two bridge decks are respectively a front bridge deck supported below the front end of the main beam and a rear bridge deck supported below the rear end of the main beam, a front anchor ingot is arranged right in front of the front bridge deck, and a rear anchor ingot is arranged right behind the rear bridge deck;

Each tower is provided with an arch temporary fixing mechanism, each arch temporary fixing mechanism comprises a left group of buckling ropes and a right group of buckling ropes which are symmetrically distributed and temporarily fix the arch assembling sections which are hoisted in place, and each group of buckling ropes and one vertical supporting frame are distributed on the same vertical surface; each group of buckling ropes comprises a plurality of buckling ropes which are distributed on the same vertical surface from top to bottom, and the plurality of buckling ropes are distributed along the longitudinal bridge direction;

each vertical supporting frame in the cable crane is provided with a plurality of buckling rope pulleys for buckling rope installation from top to bottom, all buckling rope pulleys arranged on each vertical supporting frame are positioned on the same vertical surface, and each buckling rope is arranged on one buckling rope pulley;

the front end of each buckling rope in the rear tower is fixed on an arch frame assembling section which is hoisted in place, and the rear end of each buckling rope in the rear tower is fixed on a rear anchor;

the rear end of each buckling rope in the front tower is fixed on one arch frame assembly section, and the front end of each buckling rope in the front tower is fixed on a front anchor ingot.

Above-mentioned steel bow member segmental motion and hoist system for overhead arch bridge construction, characterized by: each tower comprises an assembled frame body, and each assembled frame body comprises a left vertical support frame and a right vertical support frame which are symmetrically distributed; two in the back pylon the vertical support frame all support in on the rear side support, two in the back pylon the vertical support frame symmetry is arranged in the left and right sides of horizontal migration passageway, two in the back pylon the clear distance of vertical support frame is greater than the width of horizontal migration passageway.

Above-mentioned steel bow member segmental motion and hoist system for overhead arch bridge construction, characterized by: each tower also comprises a frame base for mounting the bottom of the assembled frame, wherein the frame base is horizontally arranged and is arranged along the transverse bridge direction, and the assembled frame is positioned right above the frame base;

the bottom of each vertical support frame is provided with a tripod which is arranged on the frame body base, and the bottom of the tripod is connected with the frame body base positioned below the tripod in a hinging manner; a bottom distribution beam is arranged right below each frame body base, and is horizontally arranged and arranged along the transverse bridge direction; the bottom distribution beam at the bottom of the rear tower is fixed on the rear side support, and the bottom distribution beam at the bottom of the front tower is fixed on the front side support.

Above-mentioned steel bow member segmental motion and hoist system for overhead arch bridge construction, characterized by: the frame body base comprises a horizontal base and a hinging seat arranged on the horizontal base, the horizontal base is horizontally supported on the bottom distribution beam, and the bottom of the tripod is connected with the hinging seat positioned below the tripod in a hinging manner;

The horizontal base is a sliding base capable of horizontally moving along the transverse bridge to the bottom distribution beam, a guide piece for guiding the horizontal base is arranged on the bottom distribution beam, and the guide piece is horizontally arranged and is arranged along the transverse bridge.

Above-mentioned steel bow member segmental motion and hoist system for overhead arch bridge construction, characterized by: a cable saddle for installing a working cable is arranged on each vertical supporting frame in the tower;

the number of the working ropes is two, the two working ropes are distributed along the longitudinal bridge direction and are symmetrically distributed above the left side and the right side of the arch rib; each working cable is provided with a front lifting trolley and a rear lifting trolley, and the two lifting trolleys are positioned between the two towers; the hoisting device is used for hoisting the assembled segments of the paired arches of the four hoisting trolley groups in the cable crane;

the two working ropes are respectively a left working rope and a right working rope positioned on the right side of the left working rope, and the two vertical support frames in each tower are respectively a left support frame and a right support frame positioned on the right side of the left support frame; the left working cable is supported on the left supporting frames of the two towers, and the right working cable is supported on the right supporting frames of the two towers.

Above-mentioned steel bow member segmental motion and hoist system for overhead arch bridge construction, characterized by: each supporting pier column comprises a left vertical pier column and a right vertical pier column which are symmetrically arranged and a cover beam which is horizontally supported on the two vertical pier columns, wherein the cover beams are horizontally arranged and are arranged along the transverse bridge direction, and the longitudinal supporting beams are supported on a plurality of cover beams in the moving channel supporting structure;

the arch centering segmented transferring device further comprises a limiting rope for limiting the movable arch centering assembly segment, the limiting rope is located above the horizontal movement channel, the limiting rope is located behind the assembly segment moving device, the rear end of the limiting rope is fixed on a rear anchor ingot or an anchoring foundation located right behind the horizontal movement channel, and the front end of the limiting rope is fixed on the movable arch centering assembly segment.

Meanwhile, the invention discloses a method for segmental moving and hoisting of the steel arch for the construction of the upper bearing arch bridge, which has the advantages of simple steps, reasonable design, convenient realization and good use effect, and is characterized in that: the assembled steel arch comprises a vault splicing section and front and rear symmetrically arranged side splicing frames, wherein the vault splicing section is connected between the two side splicing frames, each side splicing frame is formed by splicing a plurality of arch splicing sections arranged from bottom to top, and the vault splicing section is one arch splicing section;

When the assembled steel arch is moved and hoisted in segments, the process is as follows:

step one, constructing a bridge lower support structure: respectively constructing the two permanent supports and the two side beam section supporting structures to obtain a front side beam section supporting structure, a rear side beam section supporting structure, a front side support and a rear side support which are formed by construction;

step two, construction of a cable crane and an arch frame sectional transferring device: constructing the horizontal moving channel on the rear side beam section supporting structure constructed and formed in the first step, and installing the assembling section moving device on the horizontal moving channel to obtain the arch frame sectional transferring device with the construction completed; simultaneously, constructing the cable crane and supporting the rear tower in the cable crane on the rear support;

step three, assembling the steel arch frame: assembling the assembled steel arch, comprising the following steps:

step 301, splicing the side splicing frames: symmetrically splicing the two side splicing frames of the spliced steel arch;

when any side splicing frame is assembled, a plurality of arch frame assembly sections forming the side splicing frame are assembled from bottom to top, and the process is as follows:

Step 3011, assembling a first arch frame assembling section: the arch frame sectional transferring device is adopted to forward translate the currently assembled arch frame assembling sections to the position above the front end of the horizontal moving channel, and then the hoisting trolley of the cable crane is adopted to hoist and lower the arch frame assembling sections in place, so that the assembling process of the currently assembled arch frame assembling sections is completed;

in the step, the currently spliced arch frame splicing section is the lowest arch frame splicing section in the side splicing frame;

step 3012, assembling the last arch frame assembling section: the arch frame sectional transferring device is adopted to forward translate the last spliced arch frame splicing section to the position above the front end of the horizontal moving channel, then the hoisting trolley of the cable crane is adopted to hoist and lower the arch frame splicing section in place, and meanwhile, the arch frame splicing section which is put in place is connected with the arch frame splicing section which is positioned below the arch frame splicing section and is spliced, so that the splicing process of the current spliced arch frame splicing section is completed;

step 3013, repeating step 3012 one or more times, completing the assembling process of all arch frame assembling sections in the side splicing frames, and obtaining the side splicing frames after assembling;

Step 302, splicing vault splicing sections: after the two side splicing frames of the assembled steel arch are assembled, adopting the arch frame segmentation transfer device to forward translate the arch crown splicing section to the upper part of the front end of the horizontal moving channel, then adopting the crane trolley of the cable crane to hoist and lower the arch crown splicing section in place, and simultaneously connecting the arch crown splicing section which is lowered in place with the two assembled side splicing frames to complete the folding process of the assembled steel arch and obtain the assembled steel arch which is assembled and formed.

The method is characterized in that: the two side splicing frames are respectively a front splicing frame positioned at the front side of the vault splicing section and a rear splicing frame positioned at the rear side of the vault splicing section;

the two bridge decks are respectively a front bridge deck supported below the front end of the main beam and a rear bridge deck supported below the rear end of the main beam, a front anchor ingot is arranged right in front of the front bridge deck, and a rear anchor ingot is arranged right behind the rear bridge deck;

the front end of each buckling rope in the rear tower is fixed on an arch frame assembling section which is hoisted in place in the rear side assembling frame, and the rear end of each buckling rope in the rear tower is fixed on a rear anchor;

the rear end of each buckling rope in the front tower is fixed on one arch frame assembly section in the front side assembly frame, and the front end of each buckling rope in the front tower is fixed on a front anchor;

after the arch frame assembling section which is put down in place is connected with the arch frame assembling section which is positioned below the arch frame assembling section and assembled in step 3012, the arch frame assembling section assembled in the step is also required to be temporarily fixed through one buckling rope.

The method is characterized in that: the number of the working ropes is two, the two working ropes are distributed along the longitudinal bridge direction and are symmetrically distributed above the left side and the right side of the arch rib; each working cable is provided with a front lifting trolley and a rear lifting trolley, the two lifting trolleys are positioned between the two towers, and the two lifting trolleys are respectively a front sports car and a rear sports car positioned at the rear side of the front sports car; the hoisting device is used for hoisting the assembled segments of the paired arches of the four hoisting trolley groups in the cable crane;

The two working ropes are respectively a left working rope and a right working rope positioned on the right side of the left working rope, and the two vertical support frames in each tower are respectively a left support frame and a right support frame positioned on the right side of the left support frame; the left working cable is supported on the left supporting frames of the two towers, and the right working cable is supported on the right supporting frames of the two towers;

when the first arch frame assembling section is assembled in the step 3011 and the last arch frame assembling section is assembled in the step 3012, the arch frame sectional transferring device is adopted to move the currently assembled arch frame assembling section forward in a translation mode; when the front end of the arch frame assembly section moves above the front pier stud, the moved arch frame assembly section enters a hoisting area of the cable crane, and at the moment, the front sports car is connected with the front end of the moved arch frame assembly section to finish hoisting of the front end of the moved arch frame assembly section by the front sports car; then the arch frame sectional transferring device is utilized to continuously move the arch frame assembly sections forwards along the longitudinal bridge direction until the front ends of the moved arch frame assembly sections are moved to the position above the front pier stud, a rear sports car is connected with the rear ends of the moved arch frame assembly sections, and the rear sports car is used for hoisting the rear ends of the moved arch frame assembly sections; after the rear roadster is connected with the rear end of the movable arch frame assembling section, the hoisting process of the hoisting device of the cable crane on the arch frame assembling section is completed, and the arch frame assembling section is hoisted and lowered into place through the hoisting device of the cable crane.

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

1. the adopted segmental moving and hoisting system has reasonable structural design, simple and convenient construction and lower input construction cost.

2. The adopted tower has simple structure, reasonable design and lower investment and construction cost. The assembly type frame body is simple and convenient to install, and only the bottom distribution beam at the bottom of the frame body base is fixed on a permanent support (namely a tower foundation), and then the assembly type frame body is hinged with the frame body base.

3. The frame body base that adopts simple structure, processing preparation are convenient and input cost is lower to the frame body base can translate along the horizontal bridge to on the bottom distribution roof beam, thereby can adjust the laying position of pylon on permanent support through the frame body base is simple and convenient, and pylon position is adjustable and the adjustment is convenient, can satisfy the simple and convenient, the quick hoist and mount demand of cable crane.

4. The temporary arch frame fixing mechanism is arranged on the tower frame, so that arch frame assembling sections which are hoisted in place in the assembled steel arch frames can be fastened and fixed, and the temporary arch frame fixing mechanism is simple and convenient to assemble and disassemble and reliable in fixing.

5. The adopted tower is simple and convenient to use and operate and good in use effect, the permanent support can be installed on the permanent support after the construction of the permanent support is completed, the permanent support is used as a tower foundation, the support is stable and reliable, the additional construction of the tower foundation is not needed, the labor and time are saved, and meanwhile, the occupied construction space is small. The arch base of the constructed upper-bearing arch bridge arch rib is used as a tower foundation, the bottom of the assembled frame body is hinged to the frame body base, the frame body base is only required to be stably mounted on the tower foundation during actual mounting, and the installation is simple, convenient and stable and has low installation difficulty.

6. The arch frame sectional transferring device has the advantages of simple structure, reasonable design and lower investment and construction cost.

7. The adopted arch frame sectional transferring device utilizes a side beam section supporting structure for supporting the side beam section as a lower supporting structure of the horizontal moving channel, can directly and quickly move the arch frame assembly section to the lifting area of the cable crane, has small occupied space, is simple and convenient and quick to construct, does not need to specially construct the moving channel, saves labor and time, can greatly save cost, is not limited by construction occasions and site construction conditions, and has good using effect.

8. The horizontal moving channel has reasonable design, simple construction and good use effect, and only a longitudinal supporting beam is required to be erected on the supporting structure of the moving channel. For the horizontal migration device of being convenient for steadily, carry out horizontal migration fast, for the direction to horizontal migration device simultaneously, set up horizontal migration track at vertical supporting beam, the dismouting is simple and convenient and the input cost is lower.

9. The horizontal moving device is simple in structure, reasonable in design, convenient to use and operate, good in using effect, low in input cost and capable of being used repeatedly, the horizontal moving device comprises left and right groups of horizontal moving mechanisms which are symmetrically distributed, the movable arch frame assembly sections can be stably moved, and meanwhile the horizontal moving device is matched with the horizontal limiting piece, so that the moving process of the movable arch frame assembly sections is ensured to be safe and reliable.

10. The arch frame sectional transferring device is simple and convenient to use and operate and good in using effect, the horizontal moving channel is erected on the side beam section supporting structure, the horizontal moving device is arranged on the horizontal moving channel to enable the arch frame assembly sections to move stably, meanwhile, the front end of the horizontal moving channel is located on the front side of the rear tower of the cable crane, and the horizontal moving channel can penetrate through the rear tower, so that the arch frame assembly sections can be simply, conveniently and rapidly moved to the lifting area of the cable crane, the arch frame assembly section moving process is safe and reliable, the arch frame assembly sections can be simply, conveniently and rapidly moved into the lifting range of the cable crane one by one, the lifting difficulty of the cable crane is greatly reduced, and the lifting efficiency of the cable crane is accelerated.

11. The arch frame sectional transferring device is matched with the cable crane for use, the arrangement positions of two towers in the cable crane are reasonable, the construction is simple and convenient, the horizontal moving channel is erected on one side beam section supporting structure, the horizontal moving device is arranged on the horizontal moving channel, the arch frame assembling sections can be stably moved, the arch frame assembling sections can be simply, conveniently and rapidly moved to the hoisting area of the cable crane, and the arch frame assembling section moving process is safe and reliable. And the cable crane is matched with the arch frame subsection transferring device to hoist and lower the moved arch frame splicing section in place, so that the steel arch frame splicing process can be completed simply, conveniently and rapidly.

12. The adopted steel arch frame has the advantages of simple structure, reasonable design, simple and convenient use and operation and good use effect, and the transverse steel pipes arranged at the front end and the rear end of the arch support frame are connected with the supported arch frame hinging seats in a hinging manner, so that the deformation requirement of the arch support frame can be effectively met; and simultaneously pushing the two arch abutment beams along the transverse bridge can simply and conveniently remove the arch support frame from the position right below the constructed arch rib so as to facilitate subsequent use or dismantling.

13. The adopted arch frame hinging seat is simple and convenient to use and good in use effect, the arch frame hinging seat is composed of a horizontal supporting seat and a supporting steel plate, the front end and the rear end of the arch support frame are respectively supported on the arch frame hinging seat, the front end and the rear end of the arch support frame are respectively provided with a transverse steel pipe, and the transverse steel pipes are connected with the supported arch frame hinging seat in a hinging mode, so that the deformation requirement of the arch support frame can be effectively met.

14. The arch frame hinge seat adopted has good using effect, huge horizontal force and vertical force born on the arch frame hinge seat are transmitted to the horizontal support and vertical force is transmitted to the vertical support, the arch frame hinge seat is hinged with the steel arch frame, and acting force born on the arch frame hinge seat can be transmitted to the arch frame.

15. The construction method has the advantages of simple steps, reasonable design, simple and convenient construction, good use effect, safety and reliability, and can simply, conveniently and rapidly complete the steel arch frame assembling process.

The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Drawings

Fig. 1 is a reference view of the longitudinal bridge use state of the segmental motion and hoisting system of the invention.

Fig. 2 is a schematic view of the transverse bridge direction structure of the arch frame sectional transferring device of the present invention.

Fig. 3 is an enlarged partial schematic view at a in fig. 2.

Fig. 4 is a schematic structural view of an upper arch bridge constructed in accordance with the present invention.

Fig. 5 is a view showing a longitudinal bridge usage state of the arch frame sectional transferring device according to the present invention.

Fig. 6 is a reference view of the rear end of the assembled arch segment of the present invention in use as it moves over the front abutment.

FIG. 7 is a schematic view of the layout positions of the arch segment transfer apparatus and the tower of the present invention.

Fig. 8 is a schematic view of the longitudinal bridge structure of the arch according to the invention.

Fig. 9 is a schematic view of the transverse bridge structure of the arch of the present invention.

Fig. 10 is a schematic diagram of a connection state between a tripod at the bottom of a vertical support frame and a base of a frame body according to the present invention.

Fig. 11 is a schematic view of a longitudinal bridge connection of the inventive leg segments to the steel arch segments.

Fig. 12 is a schematic plan view of an assembled frame according to the present invention.

FIG. 13 is a block flow diagram of a method of the present invention for sectional movement and lifting of an assembled steel arch.

Fig. 14 is a schematic view showing a longitudinal bridge supporting state of the steel truss of the present invention.

Fig. 15 is a schematic view of the structure of the inventive abutment segments, the arch bridge, the abutment beams and the temporary abutment.

Fig. 16 is a schematic view of the structure of the arch hinge base, the transverse steel tube and the temporary arch base of the present invention.

Fig. 17 is a schematic structural view of an arch hinge base of the present invention.

Fig. 18 is a schematic structural view of the horizontal support base of the present invention.

Fig. 19 is a schematic structural view of the steel pipe limiting mechanism of the present invention.

Fig. 20 is a schematic view of the transverse bridge structure of the load-bearing steel arch of the present invention.

Fig. 21 is a schematic view of the longitudinal bridge construction of the inventive rib segment.

Reference numerals illustrate:

100-an arched support frame; 1-assembled steel arch frame; 1-arch frame assembling sections;

1-10-arch springing segments; 1-11, a transverse steel pipe; 1-12-lower connecting rod;

1-13-upper connecting rod; 1-14-middle connecting rod; 1-2-steel arch segments;

1-21—a bottom chord; 1-22-upper chord; 1-23-web members;

2-arch ribs; 3-a middle beam section; 3-1-a longitudinal support beam;

4-side beam sections; 5-vertical upright posts; 6-permanent support;

7, supporting pier columns; 7-1, vertical pier studs; 7-2, a capping beam;

8-abutment; 9-a horizontal limiting piece; 10-a horizontal movement mechanism;

10-1, a frame; 10-2, a travelling wheel; 10-3-upper support plate;

11-a horizontal movement track; 12-a track support beam; 13, a support pad steel plate;

14-limiting ropes; 15-1-front anchor; 15-2-rear anchor ingot;

16-a vertical connecting bolt; 17-tower;

17-1, a vertical supporting frame; 17-2-transverse connecting beams; 17-3, a frame base;

17-31-a horizontal base; 17-32, a hinge seat; 17-4-tripod;

17-41-vertical columns; 17-42-side brackets; 17-5-inner cable;

17-6-cable saddle; 17-7—a bottom distribution beam; 17-8, working rope;

17-9, an anchor bolt; 17-10-buckling rope; 17-11, a buckling rope pulley;

17-12 horizontal guiding steel plates; 17-13-diagonal stiffening plates; 17-14-outer cable;

17-15-a scissors support; 18-lower support steel plate; 19-a leveling layer;

20-an arch hinging seat; 20-1-supporting steel plates; 20-2-a horizontal bottom plate;

20-3, a vertical supporting plate; 20-4 parts of vertical steel plates; 20-5, a transverse steel plate;

20-6, oblique steel plates; 20-7, arc limiting depression bars; 20-8, limiting steel plate strips;

21-front sports car; 22-rear sports car; 23-arch bridge;

24-adjusting bolts; 25-a bolt mounting seat; 26-lower ear plate;

27-upper ear plate; 28-a horizontal connecting bolt; 29-a horizontal hinge shaft;

30-L-shaped support.

Detailed Description

The steel arch segmental moving and hoisting system for the construction of the upper-bearing arch bridge shown in fig. 1 comprises a cable crane for hoisting arch assembling segments 1-1 of an assembled steel arch 1 and an arch segmental transferring device for moving the arch assembling segments 1-1 one by one;

the assembled steel arch 1 is a steel arch for constructing the arch rib 2 of the constructed upper bearing arch bridge, the assembled steel arch 1 is arranged along the longitudinal bridge direction and is formed by splicing a plurality of arch assembled sections 1-1 arranged from front to back along the longitudinal bridge direction; as shown in fig. 4, the front and rear ends of the arch rib 2 are respectively supported on a permanent support 6, and the permanent support 6 is a reinforced concrete support; the arch rib 2 is arranged along the longitudinal bridge direction and is a reinforced concrete arch ring, and the arch rib 2 is supported right above the assembled steel arch 1; the constructed upper-bearing arch bridge comprises an arch rib 2 and a main beam supported on the arch rib 2, wherein the front end and the rear end of the main beam are respectively supported on a bridge abutment 8, the main beam is horizontally arranged and comprises a middle beam section 3 supported on the arch rib 2 and two side beam sections 4 respectively positioned on the front side and the rear side of the middle beam section 3, the middle beam section 3 is connected between the two side beam sections 4 and is arranged along the longitudinal bridge direction, and the middle beam section 3 and the arch rib 2 are fixedly connected through a plurality of vertical upright posts 5 arranged along the longitudinal bridge direction from front to rear; a plurality of support piers 7 which are vertically distributed are distributed from front to back along the longitudinal bridge direction below each side beam section 4, the support piers 7 are reinforced concrete piers, each side beam section 4 is supported on one abutment 8 and a plurality of support piers 7, and one abutment 8 and a plurality of support piers 7 supported below each side beam section 4 form a side beam section support structure; the two side beam section supporting structures are respectively a front side beam section supporting structure positioned at the front side of the arch rib 2 and a rear side beam section supporting structure positioned at the rear side of the arch rib 2, and the two permanent supports 6 are respectively a front side support positioned below the front end of the arch rib 2 and a rear side support positioned below the rear end of the arch rib 2;

As shown in fig. 1, 2 and 3, the arch frame sectional transferring device comprises an assembling section moving device for horizontally moving the arch frame assembling sections 1-1 one by one and a horizontal moving channel for horizontally moving the assembling section moving device, wherein the horizontal moving channel is horizontally arranged and is arranged along a longitudinal bridge direction;

the horizontal moving channel is arranged on the rear side beam section supporting structure, and the rear side beam section supporting structure is a moving channel supporting structure; the horizontal moving channel comprises a longitudinal supporting beam 3-1 supported on the moving channel supporting structure, the assembly section moving device is a horizontal moving device which can move back and forth on the longitudinal supporting beam 3-1 and drive the moved arch frame assembly section 1-1 to synchronously move in the moving process, and the longitudinal supporting beam 3-1 is horizontally arranged and is arranged along the longitudinal bridge direction; the horizontal moving device is arranged on the longitudinal supporting beam 3-1, and the movable arch frame assembly section 1-1 is horizontally supported on the horizontal moving device; the rear end of the longitudinal support beam 3-1 is an abutment support end supported on an abutment 8 in the moving channel support structure, and the front end of the longitudinal support beam 3-1 is a hoisting end; a horizontal limiting piece 9 for limiting the horizontal moving device is arranged on the lifting end of the longitudinal supporting beam 3-1;

The cable crane comprises a front tower 17, a rear tower 17, working cables 17-8 arranged on the two towers 17 and a trolley capable of moving back and forth along the working cables 17-8 and hoisting the arch frame assembly section 1-1, wherein the trolley is arranged on the working cables 17-8 and is positioned between the two towers 17, and the trolley is positioned above the arch rib 2; the two towers 17, the arch rib 2 and the longitudinal supporting beam 3-1 are positioned on the same vertical surface, and the two towers 17 are respectively a front tower positioned at the front side of the arch rib 2 and a rear tower positioned at the rear side of the arch rib 2;

the support pier column 7 at the forefront side in the rear side beam section support structure is a front pier column, the lifting end of the longitudinal support beam 3-1 is positioned at the front side of the rear tower, the lifting end of the longitudinal support beam 3-1 is supported on the front pier column, and the longitudinal support beam 3-1 is a horizontal support beam penetrating through the middle of the rear tower; the rear tower and the front pier are both supported on the rear support, and the front pier is located on the front side of the rear tower.

Wherein the permanent support 6 is a abutment for supporting the rib 2.

In this embodiment, the two bridge abutments 8 are respectively a front bridge abutment supported below the front end of the main beam and a rear bridge abutment supported below the rear end of the main beam, a front anchor 15-1 is arranged right in front of the front bridge abutment, and a rear anchor 15-2 is arranged right behind the rear bridge abutment;

Each tower 17 is provided with an arch temporary fixing mechanism, each arch temporary fixing mechanism comprises a left group of buckling ropes 17-10 and a right group of buckling ropes which are symmetrically distributed and temporarily fix the suspended arch assembling section 1-1, and each group of buckling ropes 17-10 and one vertical supporting frame 17-1 are distributed on the same vertical surface; each group of buckling ropes 17-10 comprises a plurality of buckling ropes 17-10 which are distributed on the same vertical surface from top to bottom, and the plurality of buckling ropes 17-10 are distributed along the longitudinal bridge direction;

a plurality of buckling rope pulleys 17-11 for installing buckling ropes 17-10 are arranged on each vertical supporting frame 17-1 in the cable crane from top to bottom, all the buckling rope pulleys 17-11 arranged on each vertical supporting frame 17-1 are positioned on the same vertical plane, and each buckling rope 17-10 is arranged on one buckling rope pulley 17-11;

the front end of each buckling rope 17-10 in the rear tower is fixed on an arch frame assembling section 1-1 which is hoisted in place, and the rear end of each buckling rope 17-10 in the rear tower is fixed on a rear anchor 15-2;

the rear end of each buckling rope 17-10 in the front tower is fixed on one arch frame assembly section 1-1, and the front end of each buckling rope 17-10 in the front tower is fixed on a front anchor 15-1.

In this embodiment, the rear anchor 15-2 and the front anchor 15-1 are reinforced concrete anchors.

As shown in fig. 8, 9 and 10, each tower 17 includes an assembled frame body, and the assembled frame body includes two vertical supporting frames 17-1 symmetrically arranged left and right; two vertical support frames 17-1 in the rear tower are supported on the rear side support, the two vertical support frames 17-1 in the rear tower are symmetrically arranged on the left side and the right side of the horizontal moving channel, and the clear distance between the two vertical support frames 17-1 in the rear tower is larger than the width of the horizontal moving channel.

In this embodiment, two vertical supports 17-1 of the front tower are supported on the front support.

In this embodiment, two ends of each buckling rope 17-10 are respectively located at the front side and the rear side of the assembled frame body;

the heights of the two ends of each buckling rope 17-10 are lower than the installation height of the buckling rope pulley 17-11 on which the buckling rope 17-10 is installed. Therefore, each buckling rope 17-10 is in an inverted V shape, and the two groups of buckling ropes 17-10 can fasten and fix the arch frame assembling sections 1-1 which are hoisted in place in the assembled steel arch frame 1, and the assembly and disassembly are simple and convenient, and the fixation is reliable.

In this embodiment, each tower 17 further includes a frame base 17-3 for mounting at the bottom of the assembled frame, where the frame base 17-3 is horizontally disposed and is disposed along a transverse bridge direction, and the assembled frame is located right above the frame base 17-3.

With reference to fig. 1 and 4, the front and rear ends of the arch rib 2 are respectively supported on a permanent support 6, and the permanent support 6 is a reinforced concrete support; the frame base 17-3 is horizontally supported on one of the permanent supports 6, and the permanent support 6 supported by the frame base 17-3 is a tower foundation. In this embodiment, the front support and the rear support are both tower foundations.

During actual installation, the bottoms of the two vertical support frames 17-1 in the assembled frame body are supported on the frame body base 17-3, and the bottoms of the vertical support frames 17-1 are connected with the frame body base 17-3 in a hinged mode.

As shown in fig. 9, the assembled beam body further includes a plurality of transverse connection beams 17-2 arranged from top to bottom, and the two vertical supports 17-1 are integrally connected by the plurality of transverse connection beams 17-2.

In this embodiment, the two vertical supporting frames 17-1 are integrally connected by the upper and lower transverse connecting beams 17-2.

The two transverse connection beams 17-2 are respectively an upper connection beam connected between the upper parts of the two vertical support frames 17-1 and a middle connection beam connected between the middle parts of the two vertical support frames 17-1. In this embodiment, a scissor support 17-15 is further disposed between the two vertical support frames 17-1, and the scissor support 17-15 is located at the bottom of the upper connecting beam.

As shown in fig. 12, in order to improve the bearing capacity of the vertical supporting frame 17-1, the vertical supporting frame 17-1 is a supporting column formed by assembling a plurality of straight rods, and the supporting column is a cubic column. The transverse connecting beam 17-2 is a horizontal connecting beam formed by assembling a plurality of straight rods. In this embodiment, the transverse connection beam 17-2 is a cubic beam.

As shown in fig. 8 and 10, the bottom of each vertical supporting frame 17-1 is provided with a tripod 17-4 mounted on the frame base 17-3, and the bottom of the tripod 17-4 is connected with the frame base 17-3 below the tripod in a hinged manner; a bottom distribution beam 17-7 is arranged right below each frame base 17-3, and the bottom distribution beams 17-7 are horizontally arranged and are arranged along the transverse bridge direction; the bottom distribution beam 17-7 at the bottom of the rear tower is fixed to the rear side support, and the bottom distribution beam 17-7 at the bottom of the front tower is fixed to the front side support.

In this embodiment, the tripod 17-4 is disposed vertically and its longitudinal width gradually decreases from top to bottom. The bottom of the vertical support frame 17-1 can be simply, conveniently and rapidly connected with the frame base 17-3 through the tripod 17-4, the bottom of the tripod 17-4 is simply and conveniently connected with the frame base 17-3, and meanwhile, the structure of the frame base 17-3 can be simplified.

In actual use, the tripod 17-4 is a triangular support frame formed by assembling a plurality of straight rods.

For the purpose of stable structure and simple connection, each tripod 17-4 comprises a vertical support fixed below the middle part of the vertical support 17-1 and front and rear side supports 17-42 symmetrically arranged on two sides of the vertical support, wherein the vertical support consists of a plurality of vertical columns 17-41 arranged on the same vertical surface from left to right. In this embodiment, the vertical support is composed of two vertical columns 17-41 symmetrically arranged at the bottom of the same vertical support frame 17-1. Both side brackets 17-42 are plane trusses, the upper parts of which are fixed to the bottom of the vertical supporting frame 17-1 and the bottoms of which are fixed to the vertical brackets.

In this embodiment, each vertical column 17-41 is connected with the frame base 17-3 in a hinged manner. When the connection is actually carried out, the connection between the bottom of the vertical support frame 17-1 and the frame base 17-3 can be completed only by hinging each vertical upright post 17-41 with the frame base 17-3, so that the connection is simple and convenient, and the structure of the vertical support frame 17-1 and the frame base 17-3 can be effectively simplified.

As shown in fig. 9 and 10, a bottom distribution beam 17-7 is arranged right below the frame base 17-3, and the bottom distribution beam 17-7 is horizontally arranged and is arranged along the transverse bridge direction; the bottom distribution beams 17-7 are fixed to the tower foundation.

In order to ensure simple and reliable connection, the bottom distribution beam 17-7 is fixed on the tower foundation by a plurality of anchor bolts 17-9, and the anchor bolts 17-9 are vertically distributed. Wherein the bottom distribution beam 17-7 at the bottom of the rear tower is fixed to the rear side support by a plurality of anchors 17-9, and the bottom distribution beam 17-7 at the bottom of the front tower is fixed to the front side support by a plurality of anchors 17-9.

In this embodiment, the bottom distribution beam 17-7 is formed by splicing a plurality of i-beams arranged side by side on the same horizontal plane. Each I-steel is horizontally arranged and is arranged along the transverse bridge direction.

In order to further increase the stability and the bearing effect of the bottom distribution beam 17-7, the front and rear sides of the bottom distribution beam 17-7 are symmetrically arranged on the inclined stiffening plates 17-13.

In this embodiment, the frame base 17-3 includes a horizontal base 17-31 and a hinge base 17-32 mounted on the horizontal base 17-31, the horizontal base 17-31 is horizontally supported on the bottom distribution beam 17-7, the bottom of the tripod 17-4 is connected with the hinge base 17-32 located below the tripod in a hinge manner, and specifically, the bottom of each vertical upright 17-41 in the tripod 17-4 is connected with the hinge base 17-32 located below the tripod in a hinge manner.

Therefore, the frame base 17-3 has simple and convenient structure and stable support, and the frame base 17-3 is connected with the tripod 17-4 conveniently.

In this embodiment, as shown in fig. 9 and 10, the horizontal base 17-31 is an i-steel that is arranged horizontally, the web of the horizontal base 17-31 is arranged horizontally, and the hinge base 17-32 is fixed on the web of the horizontal base 17-31. I-steel is adopted as the horizontal base 17-31, so that the structure of the horizontal base 17-31 can be effectively simplified, and the stability and the supporting strength of the horizontal base 17-31 can be ensured.

In this embodiment, the horizontal base 17-31 is a sliding seat capable of horizontally moving along the transverse bridge direction at the bottom distribution beam 17-7, and the bottom distribution beam 17-7 is provided with a guide member for guiding the horizontal base 17-31, and the guide member is horizontally arranged and is arranged along the transverse bridge direction. Therefore, in the actual use process, the invention can simply, conveniently and rapidly adjust the arrangement position of the tower frame on the basis, and the adjustment process is safe and reliable.

In this embodiment, the guide member is a horizontal guide steel plate 17-12 horizontally fixed to the bottom distribution beam 17-7, and the horizontal guide steel plate 17-12 is a rectangular steel plate.

And, the said horizontal guiding steel plate 17-12 is welded and fixed on the bottom distributing beam 17-7, thus the actual fixed connection, firm.

In this embodiment, the horizontal base 17-31 includes a web plate that is horizontally arranged and two wing plates that are symmetrically arranged on two sides of the web plate, and both the wing plates are vertically arranged. The horizontal guide steel plates 17-12 are clamped between two wing plates of the horizontal base 17-31, so that the actual installation is simple and convenient, and the guide effect is good.

As shown in fig. 8 and 9, each of the vertical supports 17-1 is provided with a cable saddle 17-6 for mounting the working cable 17-8, and the cable saddle 17-6 is provided with a working cable pulley for mounting the working cable 17-8. For reliable connection, two cable saddles 17-6 in the assembled frame body are fastened and connected through a top connecting beam.

In order to further improve the connection strength between the two vertical supporting frames 17-1 in the assembled frame body, the assembled frame body further comprises two inner cable ropes 17-5 which are distributed in a crossed mode, the two inner cable ropes 17-5 are located below the middle connecting beam and between the two vertical supporting frames 17-1, the upper portion of each inner cable rope 17-5 is fixed on the inner side wall of the vertical supporting frame 17-1, and the bottom of each inner cable rope 17-5 is fixed on the horizontal base 17-31, so that stable connection between the assembled frame body and the frame body base 17-3 can be further ensured, and connection reliability between the assembled frame body and the frame body base 17-3 is ensured.

As shown in fig. 4, the constructed upper-bearing arch bridge comprises an arch rib 2 and a main beam positioned right above the arch rib 2, wherein the arch rib 2 and the main beam are arranged along the longitudinal bridge direction, the front end and the rear end of the main beam are respectively supported on a bridge abutment 8, the main beam is horizontally arranged and comprises a middle beam section 3 supported on the arch rib 2 and two side beam sections 4 respectively positioned on the front side and the rear side of the middle beam section 3, the middle beam section 3 is connected between the two side beam sections 4 and is arranged along the longitudinal bridge direction, and the middle beam section 3 and the arch rib 2 are fixedly connected through a plurality of vertical upright posts 5 arranged along the longitudinal bridge direction from front to rear; every lateral beam section 4 below has all laid a plurality of support pier studs 7 that are vertical to laying from front to back along the longitudinal bridge direction, support pier stud 7 is reinforced concrete pier stud, every lateral beam section 4 all supports in one abutment 8 and a plurality of on supporting pier stud 7, every abutment 8 and a plurality of that lateral beam section 4 below supported support pier stud 7 all constitutes a lateral beam section bearing structure.

During actual construction, two permanent supports 6 are constructed, an assembled steel arch 1 is erected between the two permanent supports 6, an arch frame assembly section 1-1 of the assembled steel arch 1 is hoisted by adopting a cable crane, and a tower 17 is a crane tower of the cable crane.

After the construction of the permanent support 6 is completed, the tower 17 can be mounted on the permanent support 6. When the tower 17 is installed, only the bottom distribution beam 17-7 at the bottom of the frame base 17-3 is fixed on the permanent support 6, and then the assembled frame is hinged with the frame base 17-3, so that the actual installation is very simple and convenient, and the arrangement position of the tower 17 on the permanent support 6 can be adjusted simply and conveniently through the frame base 17-3. Meanwhile, in the process of hoisting the arch frame assembly sections 1-1 of the assembled steel arch frame 1 by adopting the cable crane, the arch frame assembly sections 1-1 which are hoisted in place in the assembled steel arch frame 1 can be fastened and fixed by two groups of buckling cables 17-10, and the assembly and disassembly are simple and convenient, and the fixation is reliable. In addition, the tower 17 takes the permanent support 6 as a tower foundation, so that the support is stable and reliable, the additional construction of the tower foundation is not needed, the labor and time are saved, and the occupied construction space is small.

In order to further improve the stability of the tower 17, the top of each vertical supporting frame 17-1 is fixed with the anchor ingot 15 through an outer cable 17-14, the outer cable 17-14 and the inner cable 17-5 are fixed cables, and the cable saddle 17-6 is provided with a fixed cable pulley for installing the outer cable 17-14.

In this embodiment, the support pier 7 located at the rearmost side of the front side beam section support structure is a rear pier, and both the rear pier and the front tower are supported on the front side support; the rear pier is located at the rear side of the front tower.

The rear pier stud and the front support are integrally cast, and the front pier stud and the rear support are integrally cast.

The two side beam sections 4 are respectively a front side beam section positioned on the front side of the middle beam section 3 and a rear side beam section positioned on the rear side of the middle beam section 3, the front pier is supported below the joint between the middle beam section 3 and the rear side beam section, and the rear pier is supported below the joint between the middle beam section 3 and the front side beam section.

In this embodiment, the abutment 8 is a reinforced concrete abutment, the vertical columns 5 are reinforced concrete columns, each side beam section 4 and the side beam section supporting structure supported below form an approach bridge of the constructed upper arch bridge, the middle beam section 3 and the arch rib 2 and a plurality of vertical columns 5 connected between the two form a main bridge of the constructed upper arch bridge, and the constructed upper arch bridge is formed by connecting the main bridge with the approach bridges connected with the front and rear main bridges. One supporting pier 7 is arranged below the connecting position between each side beam section 4 and the middle beam section 3. Abutment 8 and a plurality of in every lateral beam section bearing structure support pier 7 equipartition locate on same vertical face.

As shown in fig. 5, in this embodiment, the moving walkway support structure is the side beam segment support structure, i.e., the rear side beam segment support structure, located at the rear side of the middle beam segment 3. In actual use, the movement channel support structure may also be the side beam section support structure located on the front side of the middle beam section 3.

In this embodiment, the horizontal limiting member 9 is a limiting stop arranged horizontally.

In order to ensure that the horizontal limiting piece 9 limits the horizontal moving device and does not influence the horizontal moving process of the moved arch assembling section 1-1, the horizontal limiting piece 9 is positioned below the moved arch assembling section 1-1.

In this embodiment, the limit stop is a cube stop fixed above the lifting end of the longitudinal support beam 3-1.

As shown in fig. 2, in order to ensure smooth movement of the moved arch frame assembly segments 1-1 and smooth placement of the moved arch frame assembly segments 1-1 on the horizontal movement device during movement, the horizontal movement device includes two sets of horizontal movement mechanisms 10 symmetrically arranged left and right, each set of horizontal movement mechanisms 10 includes a plurality of horizontal movement mechanisms 10 arranged front to back along a longitudinal bridge; the two groups of horizontal moving mechanisms 10 are symmetrically supported below the left side and the right side of the moved arch frame assembling segment 1-1.

When the moving is actually performed, the moved arch frame assembly segments 1-1 are stably placed on the two groups of horizontal moving mechanisms 10.

In this embodiment, each group of horizontal moving mechanisms 10 includes two front and rear horizontal moving mechanisms 10, and the two horizontal moving mechanisms 10 are respectively supported below the front and rear sides of the moved arch frame assembly section 1-1. In actual use, the number of the horizontal moving mechanisms 10 included in each group of the horizontal moving mechanisms 10 and the layout positions of the horizontal moving mechanisms 10 can be respectively adjusted according to specific needs.

As shown in fig. 2 and 3, in order to facilitate the smooth and rapid horizontal movement of the horizontal movement mechanism 10 and guide the horizontal movement mechanism 10, the horizontal movement channel further includes two horizontal movement rails 11 symmetrically disposed on the left and right and horizontally moving the horizontal movement mechanism 10, and the horizontal movement rails 11 are horizontally disposed and are disposed along the longitudinal bridge direction; the two horizontal moving rails 11 are symmetrically arranged above the left side and the right side of the longitudinal support beam 3-1;

each group of the horizontal moving mechanisms 10 in the horizontal moving device is mounted on the same horizontal moving rail 11.

In this embodiment, the longitudinal support beam 3-1 is formed by splicing a plurality of horizontal support plates, wherein the plurality of horizontal support plates are all horizontally arranged and are all arranged along the longitudinal bridge direction, and the plurality of horizontal support plates are arranged on the same horizontal plane from left to right along the transverse bridge direction; the plurality of horizontal support plates are supported on the moving channel support structure. In actual construction, the horizontal support plates are small in width, light in weight and convenient to assemble and disassemble.

In order to ensure the supporting strength, the horizontal moving channel further comprises two rail supporting beams 12 which are symmetrically arranged at left and right and are used for supporting the horizontal moving rail 11, wherein the rail supporting beams 12 are horizontally arranged and are arranged along the longitudinal bridge direction; each of the rail support beams 12 is supported directly under one of the horizontal moving rails 11.

In this embodiment, the number of the horizontal limiting members 9 is two, and each horizontal limiting member 9 is located right in front of one horizontal moving rail 11.

In order to ensure the safety and reliability of the moving process, the movable arch frame assembling section 1-1 is prevented from moving forward to the outer side of the horizontal moving channel, the arch frame segmented transferring device further comprises a limiting rope 14 for limiting the movable arch frame assembling section 1-1, the limiting rope 14 is positioned above the horizontal moving channel, the limiting rope 14 is positioned behind the assembling section moving device, the rear end of the limiting rope 14 is fixed on a rear anchor 15-2 or an anchoring foundation positioned right behind the horizontal moving channel, and the front end of the limiting rope 14 is fixed on the movable arch frame assembling section 1-1. In actual use, the movable arch centering assembly segment 1-1 can be effectively prevented from running forward out of control by the limiting ropes 14, and the horizontal moving channel is punched out.

In this embodiment, the rear end of the limiting rope 14 is fixed on the rear anchor 15-2. An anchor for binding and fixing the rear end of the limiting rope 14 is arranged on the rear anchor rod 15-2.

In this embodiment, the support pier 7 supported by the front end of the longitudinal support beam 3-1 is a front pier; the two permanent supports 6 are respectively a front support supported below the front end of the arch rib 2 and a rear support supported below the rear end of the arch rib 2, the front end of the longitudinal support beam 3-1 is positioned above the rear support, and the front pier is supported on the rear support.

The two permanent supports 6 are arch seats for supporting the arch rib 2, the front pier column is supported on the rear support, the supporting stability of the front pier column can be effectively ensured, meanwhile, as the front pier column is supported below the connecting position between the middle beam section 3 and one side beam section 4, the supporting strength of the supported middle beam section 3 and the side beam section 4 can be effectively ensured, and the rear support is directly used as the supporting foundation of the front pier column, the construction of the foundation of the front pier column is omitted, and the labor and time are saved.

When the assembled steel arch 1 is assembled in actual construction, the arch frame assembling sections 1-1 of the assembled steel arch 1 are hoisted in place one by adopting a cable crane for assembling.

As shown in fig. 5 and 7, a tower 17 is arranged on the rear support, and the tower 17 is a crane tower of a cable crane for hoisting the moved arch assembly section 1-1; the tower 17 is positioned right behind the front pier column;

the tower 17 comprises two vertical support frames 17-1 which are symmetrically distributed left and right, the two vertical support frames 17-1 are both supported on the rear side support, and the two vertical support frames 17-1 are symmetrically distributed on the left side and the right side of the horizontal moving channel.

Meanwhile, each tower 17 further comprises a plurality of transverse connecting beams 17-2 which are arranged from top to bottom, and two vertical supports 17-1 in each tower 17 are connected into a whole through the plurality of transverse connecting beams 17-2.

In this embodiment, the vertical supporting frame 17-1 is a supporting column formed by assembling a plurality of straight rods, and the supporting column is a cubic column.

The transverse connecting beam 17-2 is a horizontal connecting beam formed by assembling a plurality of straight rods.

In actual construction, a tower foundation for supporting the tower 17 does not need to be specially constructed, and only the tower 17 needs to be directly supported on the rear support, so that the support is firm, and labor and time are saved. Meanwhile, as the tower 17 and the front pier column are supported on the rear support, after the construction of the rear support is completed, the tower 17 and the front pier column can be constructed respectively, the construction efficiency can be effectively improved, and the cable crane is more convenient to hoist the arch frame assembly section 1-1 which moves to the upper part of the front pier column. The area above the front pier column is the hoisting area of the cable crane, and the hoisting area is positioned on the front side of the tower 17.

In actual construction, the two towers 17, the arch rib 2 and the longitudinal support beam 3-1 are all located on the same vertical plane, the two towers 17 are respectively a front tower located at the front side of the arch rib 2 and a rear tower located at the rear side of the arch rib 2, and the tower 17 supported on the rear support is the rear tower. . Wherein the trolley is also called a sports car or a crane sports car.

In this embodiment, each supporting pier 7 includes two vertical piers 7-1 symmetrically arranged left and right and a capping beam 7-2 horizontally supported on the two vertical piers 7-1, the capping beams 7-2 are horizontally arranged and are arranged along the transverse bridge direction, and the longitudinal supporting beams 3-1 are supported on a plurality of capping beams 7-2 in the moving channel supporting structure.

In actual construction, the capping beam 7-2 is a reinforced concrete beam, and the vertical pier column 7-1 is a reinforced concrete column.

In this embodiment, the horizontal support plate is a flat steel plate, and the horizontal support plate is connected with each bent cap 7-2 in the moving channel support structure through a plurality of vertical connecting bolts 16. Therefore, the practical disassembly and assembly are simple and convenient, and the stable supporting requirement can be met.

In order to ensure the stability of the support, a lower support steel plate 18 is arranged between the horizontal support plate and each cover beam 7-2 in the support structure of the moving channel in a cushioning manner, and each lower support steel plate 18 is fixed with the horizontal support plate through a vertical connecting bolt 16.

In this embodiment, a leveling layer 19 is disposed between the lower support steel plate 18 and the capping beam 7-2 supported by the lower support steel plate, and the leveling layer 19 is a mortar leveling layer or a concrete leveling layer.

In this embodiment, the horizontal moving rail 11 is a channel steel with an upward notch. The horizontal movement mechanism 10 is mounted in the channel steel.

The horizontal movement rail 11 is simple and convenient to actually install, convenient to use and operate and good in use effect, and the channel steel can stably guide the horizontal movement mechanism 10, so that the simple and convenient and quick movement process is ensured.

In this embodiment, the horizontal movement mechanism 10 is a horizontal movement vehicle, and the horizontal movement vehicle includes a frame 10-1, an upper support plate 10-3 mounted on the frame 10-1, and two sets of travelling wheels 10-2 symmetrically mounted at bottoms of left and right sides of the frame 10-1, where each set of travelling wheels 10-2 includes a plurality of travelling wheels 10-2 arranged from front to back along a longitudinal bridge direction; the moved arch-assembling segments 1-1 are supported on the upper support plate 10-3.

Each track supporting beam 12 is formed by splicing a plurality of I-beams, the I-beams are horizontally distributed and distributed along the longitudinal bridge direction, and the I-beams are distributed from left to right along the transverse bridge direction. In order to ensure the stability of the support, each of the rail support beam 12 and the longitudinal support beam 3-1 is provided with a support steel plate 13, and the support steel plate 13 is a flat steel plate horizontally arranged and is arranged along the longitudinal bridge direction.

In this embodiment, each of the rail support beams 12 is welded and fixed to one of the support-pad steel plates 13. Each of the horizontal moving rails 11 is welded and fixed to one of the rail support beams 12. The actual construction is simple and convenient, and the connection is firm.

When in actual use, the side beam section supporting structure for supporting the side beam section 4 is utilized to move the arch frame assembly section 1-1, the arch frame assembly section 1-1 can be directly and rapidly moved to the hoisting area of the cable crane, the occupied space is small, the construction is simple and rapid, a special construction moving channel is not needed, labor and time are saved, the cost can be greatly saved, and meanwhile, the use effect is good, and the construction situation and the site construction condition are not limited. As shown in fig. 5 and 6, the working rope 17-8 is provided with a front trolley and a rear trolley, and the two trolleys are respectively a front trolley 21 and a rear trolley 22 positioned at the rear side of the front trolley 21.

In this embodiment, the number of the working cables 17-8 is two, both the working cables 17-8 are arranged along the longitudinal bridge direction and are symmetrically arranged above the left and right sides of the arch rib 2; each working cable 17-8 is provided with a front lifting trolley and a rear lifting trolley, and the two lifting trolleys are positioned between the two towers 17; the hoisting device is used for hoisting the paired arch frame assembly segments 1-1 of the four hoisting trolley groups in the cable crane;

The two working cables 17-8 are respectively a left working cable and a right working cable positioned on the right side of the left working cable, and the two vertical supporting frames 17-1 in each tower 17 are respectively a left supporting frame and a right supporting frame positioned on the right side of the left supporting frame; the left working cable is supported on the left support frames of the two towers 17, and the right working cable is supported on the right support frames of the two towers 17.

The lifting trolleys are sports cars, and the two lifting trolleys are respectively a front sports car 21 and a rear sports car 22 positioned at the rear side of the front sports car 21. The cable saddle 17-6 is provided with a cable pulley to which the cable 17-8 is attached.

The method for moving and hoisting the steel arch frame in sections is shown in fig. 13, wherein the assembled steel arch frame 1 comprises a vault splicing section and front and rear symmetrically arranged side splicing frames, the vault splicing section is connected between the two side splicing frames, each side splicing frame is formed by splicing a plurality of arch frame assembling sections 1-1 arranged from bottom to top, and the vault splicing section is one arch frame assembling section 1-1;

when the assembled steel arch 1 is moved and hoisted in sections, the process is as follows:

Step one, constructing a bridge lower support structure: respectively constructing the two permanent supports 6 and the two side beam section supporting structures to obtain a front side beam section supporting structure, a rear side beam section supporting structure, a front side support and a rear side support which are formed by construction;

step three, assembling the steel arch frame: assembling the assembled steel arch 1, comprising the following steps:

step 301, splicing the side splicing frames: symmetrically splicing the two side splicing frames of the spliced steel arch 1;

when any side splicing frame is spliced, a plurality of arch frame splicing sections 1-1 forming the side splicing frame are spliced from bottom to top, and the process is as follows:

Step 3011, assembling a first arch frame assembling section: the arch frame sectional transferring device is adopted to forward translate the currently assembled arch frame assembling section 1-1 to the position above the front end of the horizontal moving channel, and then the hoisting trolley of the cable crane is adopted to hoist and lower the arch frame assembling section 1-1 in place, so that the assembling process of the currently assembled arch frame assembling section 1-1 is completed;

in the step, the currently spliced arch frame splicing section 1-1 is the lowest one of the arch frame splicing sections 1-1 in the side splicing frames;

step 3012, assembling the last arch frame assembling section: the arch frame sectional transferring device is adopted to forward translate the last spliced arch frame splicing section 1-1 to the position above the front end of the horizontal moving channel, then the trolley of the cable crane is adopted to hoist and lower the arch frame splicing section 1-1 in place, and meanwhile, the arch frame splicing section 1-1 which is put in place is connected with the arch frame splicing section 1-1 which is positioned below the arch frame splicing section and is spliced, so that the splicing process of the current spliced arch frame splicing section 1-1 is completed;

step 3013, repeating step 3012 one or more times, completing the assembling process of all arch frame assembling segments 1-1 in the side splicing frames, and obtaining the assembled side splicing frames;

Step 302, splicing vault splicing sections: after the two side splicing frames of the assembled steel arch 1 are assembled, adopting the arch frame segmentation transfer device to forward translate the arch crown splicing section to the position above the front end of the horizontal moving channel, then adopting the crane trolley of the cable crane to hoist and lower the arch crown splicing section in place, and simultaneously connecting the arch crown splicing section which is lowered in place with the two assembled side splicing frames to complete the folding process of the assembled steel arch 1 and obtain the assembled steel arch 1 which is assembled and formed.

In step 301, symmetrically assembling the two side splicing frames of the assembled steel arch 1 refers to staggered assembling of arch assembling segments 1-1 in the two side splicing frames.

In this embodiment, the two side splicing frames are respectively a front side splicing frame located at the front side of the vault splicing section and a rear side splicing frame located at the rear side of the vault splicing section;

the two bridge decks 8 are respectively a front bridge deck supported below the front end of the main beam and a rear bridge deck supported below the rear end of the main beam, a front anchor ingot 15-1 is arranged right in front of the front bridge deck, and a rear anchor ingot 15-2 is arranged right behind the rear bridge deck;

The front end of each buckling rope 17-10 in the rear tower is fixed on an arch frame assembling section 1-1 which is hoisted in place in the rear side assembling frame, and the rear end of each buckling rope 17-10 in the rear tower is fixed on a rear anchor 15-2;

the rear end of each buckling rope 17-10 in the front tower is fixed on one arch frame assembly section 1-1 in the front side assembly frame, and the front end of each buckling rope 17-10 in the front tower is fixed on a front anchor 15-1;

after the arch frame assembling section 1-1 put down in place is connected with the arch frame assembling section 1-1 positioned below the arch frame assembling section and assembled in step 3012, the arch frame assembling section 1-1 assembled in the step is also required to be temporarily fixed through one buckling rope 17-10. Therefore, in the assembling process, the stability of the assembled arch frame assembling section 1-1 can be ensured through the two groups of buckling ropes 17-10.

From the above, it can be seen that the suspended arch frame assembling segment 1-1 in place is temporarily fixed by adopting a suspension manner of cable-stayed buckling (namely buckling cable 17-10), and before the arch frame assembling segment is assembled in step 302, the line shapes of the two side frame assembling frames can be respectively adjusted through the two groups of buckling cables 17-10, so that the line shape of the assembled steel arch frame 1 after being folded is further ensured.

And (2) after the splicing of the arch roof splicing sections is completed in the step (302), the two groups of buckling ropes 17-10 are removed step by step in batches.

In this embodiment, when the first arch frame assembling segment is assembled in step 3011 and when the last arch frame assembling segment is assembled in step 3012, the arch frame segment transferring device is used to translate the currently assembled arch frame assembling segment 1-1 forward; when the front end of the arch frame assembly section 1-1 moves above the front pier stud, the moved arch frame assembly section 1-1 enters a hoisting area of the cable crane, and at the moment, the front sports car 21 is connected with the front end of the moved arch frame assembly section 1-1 to finish hoisting the front end of the moved arch frame assembly section 1-1 by the front sports car 21; then the arch frame sectional transferring device is utilized to continuously move the arch frame assembling section 1-1 forwards along the longitudinal bridge until the front end of the moved arch frame assembling section 1-1 is moved above the front pier stud, the rear sports car 22 is connected with the rear end of the moved arch frame assembling section 1-1, and the rear sports car 22 is used for hoisting the rear end of the moved arch frame assembling section 1-1; after the rear sports car 22 is connected with the rear end of the moved arch frame assembling section 1-1, the hoisting process of the hoisting device of the cable crane on the arch frame assembling section 1-1 is completed, and the arch frame assembling section 1-1 is hoisted and lowered into place through the hoisting device of the cable crane.

In this embodiment, as shown in fig. 1, when the vault splicing section is assembled in step 302, because the length of the vault splicing section is shorter, when the cable crane is used to hoist the vault splicing section, two rear sports cars 22 in the cable crane are used to hoist the vault splicing section.

When the vault splicing sections are assembled in the step 302, the vault splicing sections are translated forwards by adopting the arch frame sectional transferring device; when the vault splicing section translates to the position above the front pier stud, the vault splicing section enters a hoisting area of the cable crane, and at the moment, the rear sports car 22 is connected with the middle part of the vault splicing section, so that the rear sports car 22 hoists the vault splicing section; and (3) completing the hoisting process of the hoisting device of the cable crane to the arch roof splicing section, and hoisting and lowering the arch roof splicing section in place through the hoisting device of the cable crane.

In actual construction, when the vault splicing sections are assembled in step 302, the vault splicing sections may also be hoisted synchronously by adopting the two front sports cars 21 and the two rear sports cars 22 according to the method described in step 3011.

As shown in fig. 5, when the arch frame sectional transferring device is adopted to forward translate the currently assembled arch frame assembly section 1-1, the arch frame assembly section 1-1 is moved forward along the longitudinal bridge by utilizing the horizontal moving device, and the horizontal moving device is used for horizontally supporting the front side and the rear side of the arch frame assembly section 1-1 in the moving process, so that the moved arch frame assembly section 1-1 is in a stable state and the moving process is safe and reliable; when the front end of the moved arch frame assembling section 1-1 moves above the front pier stud, the moved arch frame assembling section 1-1 enters a hoisting area of the cable crane, at the moment, the front sports car 21 is connected with the front end of the moved arch frame assembling section 1-1, and the front sports car 21 is used for hoisting the front end of the moved arch frame assembling section 1-1. Then, the horizontal moving device is utilized to continuously move the arch frame assembly section 1-1 forwards along the longitudinal bridge until the front end of the moved arch frame assembly section 1-1 is moved above the front pier stud, and the hoisting action of the front sports car 21 is matched with the horizontal supporting action of the horizontal moving device in the moving process, so that the moved arch frame assembly section 1-1 can be effectively ensured to be in a stable state, and the moving process is ensured to be safe and reliable; as shown in fig. 6, when the front end of the moved arch assembling segment 1-1 moves above the front pier, the rear sports car 22 is connected with the rear end of the moved arch assembling segment 1-1, and the rear sports car 22 is completed to hoist the rear end of the moved arch assembling segment 1-1. After the rear sports car 22 is connected with the rear end of the moved arch frame assembly section 1-1, the moved arch frame assembly section 1-1 is stably hoisted through the front sports car 21 and the rear sports car 22, so that the hoisting process of the cable crane is completed, the practical construction is simple and convenient, and the construction process is safe and reliable.

After the moved arch frame assembly segment 1-1 enters the hoisting area of the cable crane, the horizontal limiting piece 9 is used for limiting the horizontal moving device, so that the horizontal moving device can be prevented from moving out to the outer side of the horizontal moving channel, the safe and reliable construction process is ensured, and meanwhile, the arch frame assembly segment 1-1 can not be influenced in any way when continuing to move forwards. In addition, the limiting rope 14 is a brake rope, so that the safety and stability of the moving process of the arch frame assembling segment 1-1 can be further ensured.

In actual construction, the steel arch for constructing the arch rib 2 is an arch support 100. The assembled steel arch 1 is an arch support 100 or a middle arch in the arch support 100.

When the transverse width of the arched support frame 100 is smaller than the clear distance between the two vertical support frames 17-1 in the rear tower, the assembled steel arch frame 1 is the arched support frame 100; otherwise, when the transverse width of the arch support 100 is not smaller than the clear distance between the two vertical supports 17-1 in the rear tower, the arch support 100 is required to be divided into a plurality of arches from left to right, the assembled steel arch 1 is one arch in the arch support 100, each arch is formed by splicing a plurality of arch assembled sections 1-1 distributed from front to back along the longitudinal bridge direction, and at this time, each arch in the arch support 100 is an assembled steel arch 1.

In the third step, when the steel arch frame is assembled, a plurality of arch frames in the arch support frame 100 are assembled respectively from front to back, each arch frame is an assembled steel arch frame 1, and the assembling methods of the arch frames are the same; when any one of the arches of the arch support 100 is assembled, the assembly is performed according to the method described in steps 301 to 302.

In this embodiment, the width of the arched support 100 in the transverse direction is not smaller than the clear distance between the two vertical supports 17-1 in the rear tower, the arched support 100 is divided into 3 arches from left to right, and the 3 arches are respectively a left arch, a middle arch and a right arch from left to right along the transverse direction.

When steel arch assembly is carried out in the third step, firstly, the middle arch frame is spliced according to the methods from the step 301 to the step 302, then the left arch frame is spliced according to the methods from the step 301 to the step 302, and each arch assembly section 1-1 in the left arch frame is fixedly connected with the middle arch frame into a whole; finally, the right side arches are spliced according to the method described in the steps 301 to 302, and each arch splicing section 1-1 in the right side arches is fastened and connected with the middle arch as a whole.

As shown in fig. 14, 15 and 16, in this embodiment, the front and rear arches of the arch support 100 are respectively supported on an arch hinge seat 20, the arch hinge seat 20 is a transverse mounting seat for mounting the arches of the arch support 100, a transverse distribution beam is mounted at the bottom of the arch hinge seat 20, and the transverse distribution beam is an arch seat beam 23 mounted at the bottom of the arch hinge seat 20; the arch support 100 is disposed vertically and along a longitudinal bridge.

As shown in fig. 11 and 21, the arch support 100 includes two arch leg segments 1-100 symmetrically arranged in front and back, and a bearing steel arch connected between the two arch leg segments 1-100, where the bearing steel arch and the two arch leg segments 1-100 are arranged along a longitudinal bridge direction; the bearing steel arch is formed by splicing a plurality of steel arch segments 1-2, and the steel arch segments 1-2 are arranged from front to back along a longitudinal bridge; the lower parts of the front end and the rear end of the bearing steel arch frame are connected with the lower parts of the two arch leg sections 1-100 and the lower parts of the front and rear adjacent two steel arch frame sections 1-2 in a hinged mode, and the upper parts of the front end and the rear end of the bearing steel arch frame are connected with the upper parts of the two arch leg sections 1-100 and the upper parts of the front and rear adjacent two steel arch frame sections 1-2 through adjustable connecting pieces; the two arch leg sections 1-100 and the plurality of steel arch frame sections 1-2 are steel trusses assembled by a plurality of straight rods;

The bottoms of the two arch leg sections 1-100 are respectively provided with a transverse steel pipe 1-11 horizontally supported on an arch frame hinging seat 20, the transverse steel pipes 1-11 are horizontally arranged and are arranged along a transverse bridge direction, and the transverse steel pipes 1-11 are round steel pipes; each of the transverse steel pipes 1-11 is supported on one of the arch hinge bases 20, and each of the transverse steel pipes 1-11 is connected with the arch hinge base 20 supported by the transverse steel pipe in a hinged manner. The articulation between the steel arch and the arch abutment 20 is thus easily achieved by means of the transverse steel tubes 1-11.

In this embodiment, the straight rod is a straight steel pipe.

As shown in fig. 17 and 18, the arch hinge base 20 includes a horizontal support base supported on the arch bridge 23 and a support steel plate 20-1 supported on the horizontal support base, where the horizontal support base and the support steel plate 20-1 are both horizontally arranged and both are arranged along the transverse bridge direction; the cross section of each supporting steel plate 20-1 is arc-shaped, each transverse steel pipe 1-11 is supported on one supporting steel plate 20-1, each transverse steel pipe 1-11 and the supporting steel plate 20-1 supported by the transverse steel pipe are coaxially arranged, and the supporting steel plate 20-1 is positioned below the outer side of the supported transverse steel pipe 1-11.

In this embodiment, each of the abutment beams 23 is supported on a temporary abutment, which is an L-shaped abutment 30 arranged inside the permanent abutment 6. And, the L-shaped support 30 is provided with a vertical support for supporting the arch-seat beam 23.

In this embodiment, as shown in fig. 21, each of the arch leg segments 1-100 is formed by assembling M arch leg steel trusses, where the structures of the M arch leg steel trusses are the same and the M arch leg steel trusses are arranged from left to right along a transverse bridge;

as shown in fig. 11 and 21, each steel arch segment 1-2 is formed by assembling M arched steel trusses, wherein the M arched steel trusses have the same structure and are distributed from left to right along a transverse bridge;

each arch steel truss in the steel arch segments 1-2 and one arch steel truss in the arch leg segments 1-100 are arranged on the same vertical surface;

two arch foot steel trusses and all arch steel trusses on the same vertical surface of the arch support 100 form an assembled steel arch, the arch support 100 comprises M steel trusses which are distributed from left to right along a transverse bridge, and the structure and the size of the assembled steel arch are the same and are distributed along a longitudinal bridge.

In this embodiment, the front and rear arch leg segments 1-100 and the plurality of steel arch segments 1-2 in the arch support 100 are uniformly distributed on the same vertical plane.

For easy connection and convenient disassembly, the lower parts of the front end and the rear end of the bearing steel arch are connected with the lower parts of the two arch foot sections 1-100 and the lower parts of the front and rear adjacent two steel arch frame sections 1-2 through horizontal hinge shafts 29, and the horizontal hinge shafts 29 are distributed along the transverse bridge direction.

As shown in fig. 11 and 21, the upper portions of the two arch segments 1 to 100 and the upper portions of the front and rear sides of each of the steel arch segments 1 to 2 are provided with bolt mounts 25 for mounting the adjusting bolts 24. In this embodiment, the distance between the upper part of the bearing steel arch and the upper parts of the two arch leg segments 1-100 and the distance between the upper parts of the two adjacent steel arch segments 1-2 are adjusted by adjusting bolts 24.

For firm fixation and stable support, the arch support beam 23 is a steel box beam welded and fixed at the bottom of the horizontal support base.

In this embodiment, the steel box girder is formed by splicing two I-beams symmetrically arranged in front and back directions, wherein the two I-beams are horizontally arranged and uniformly arranged on the same horizontal plane, and the two I-beams are arranged along the transverse bridge direction.

In order to further improve the supporting strength of the steel box girder, two I-steel beams are fastened and connected through a plurality of transverse connecting plates, and the transverse connecting plates are fastened and connected through a plurality of pull rods horizontally distributed along the transverse bridge.

As shown in fig. 18, the horizontal support base includes an L-shaped support base supported below the outer side of the support steel plate 20-1, the cross section of the L-shaped support base is L-shaped and is distributed along the transverse bridge direction, the L-shaped support base is composed of a horizontal bottom plate 20-2 horizontally supported on an arch support beam 23 and a vertical support plate 20-3 fixed above the outer side of the horizontal bottom plate 20-2, the horizontal bottom plate 20-2 is connected with the support steel plate 20-1 through a plurality of vertical steel plates 20-4 distributed from outside to inside, the vertical support plate 20-3 is connected with the support steel plate 20-1 through a plurality of transverse steel plates 20-5 distributed from bottom to top, and the transverse steel plates 20-5 are horizontally distributed; the horizontal bottom plate 20-2, the vertical supporting plate 20-3, the vertical steel plate 20-4 and the horizontal steel plate 20-5 are all flat steel plates and are distributed along the transverse bridge direction, the vertical steel plate 20-4 is fixedly connected with the horizontal bottom plate 20-2 and the supporting steel plate 20-1 in a welding mode, and the horizontal steel plate 20-5 is fixedly connected with the vertical supporting plate 20-3 and the supporting steel plate 20-1 in a welding mode.

In this embodiment, the number of the vertical steel plates 20-4 and the number of the horizontal steel plates 20-5 in the horizontal supporting seat are two. During actual processing, the number of the vertical steel plates 20-4 and the transverse steel plates 20-5 in the horizontal supporting seat and the arrangement positions of the vertical steel plates 20-4 and the transverse steel plates 20-5 can be respectively and correspondingly adjusted according to specific requirements.

Meanwhile, the horizontal supporting seat further comprises an inclined steel plate 20-6, the inclined steel plate 20-6 gradually inclines outwards from top to bottom and is a flat steel plate distributed along the transverse bridge direction, the upper portion of the inclined steel plate 20-6 is fixedly welded on the supporting steel plate 20-1, and the bottom of the inclined steel plate is fixedly welded at the joint between the horizontal bottom plate 20-2 and the vertical supporting plate 20-3.

As shown in fig. 19, to ensure that the arch support 100 can be stably and stably supported on the arch hinge base 20, the arch hinge base 20 further includes a plurality of steel pipe limiting mechanisms for limiting the transverse steel pipes 1-11, wherein the plurality of steel pipe limiting mechanisms have the same structure and are arranged from left to right along the transverse bridge, and the plurality of steel pipe limiting mechanisms are arranged vertically;

the steel pipe limiting mechanism comprises an arc limiting pressing strip 20-7 which is arranged above the inner side of a transverse steel pipe 1-11, the arc limiting pressing strip 20-7 is vertically arranged, the upper end and the lower end of the arc limiting pressing strip are both fixed on the horizontal supporting seat, a limiting steel strip 20-8 is arranged between the arc limiting pressing strip 20-7 and the transverse steel pipe 1-11 in a cushioning mode, and the cross section of the limiting steel strip 20-8 is arc-shaped and is fixed under the arc limiting pressing strip 20-7.

In this embodiment, the arc-shaped limiting bead 20-7 is a steel bar bead formed by bending a steel bar, and the limiting steel plate strip 20-8 is formed by bending a rectangular flat steel plate and is welded and fixed on the arc-shaped limiting bead 20-7.

For the convenience of fixing, the upper section of the arc limiting depression bar 20-7 is an upper connecting section, the lower section of the arc limiting depression bar is a lower connecting section, a lower lug plate 26 for fixing the lower connecting section is fixedly welded on the horizontal bottom plate 20-2, an upper lug plate 27 for fixing the upper connecting section is fixedly welded on the inner side of the upper part of the vertical supporting plate 20-3, and the lower lug plate 26 and the upper lug plate 27 are straight steel plates distributed vertically. When the steel pipe limiting mechanism is actually fixed, the upper connecting section and the upper lug plate 27 and the lower connecting section and the lower lug plate 26 are fixedly connected through the horizontal connecting bolts 28, so that the steel pipe limiting mechanism is simple and convenient to connect and convenient to disassemble and assemble, and the steel pipe limiting mechanism can effectively limit the transverse steel pipes 1-11, prevent the transverse steel pipes 1-11 from being separated from the horizontal supporting seat, and ensure the supporting stability of the transverse steel pipes 1-11; meanwhile, the steel pipe limiting mechanism does not limit the transverse steel pipe 1-11 to rotate on the supporting steel plate 20-1.

As shown in fig. 21, each arch foot steel truss is a triangular steel truss, each arch foot steel truss comprises two triangular plane trusses which are symmetrically distributed left and right, the two triangular plane trusses are vertically distributed and are distributed along a longitudinal bridge, and the two triangular plane trusses are connected through a plurality of connecting rods; each triangular plane truss is formed by connecting a lower connecting rod 1-12, an upper connecting rod 1-13 positioned right above the lower connecting rod 1-12 and a middle connecting rod 1-14 connected between the lower connecting rod 1-12 and the upper connecting rod 1-13, the lower ends of the lower connecting rod 1-12 and the upper connecting rod 1-13 are both fixed on a transverse steel pipe 1-11, and the upper ends of the lower connecting rod 1-12 and the upper end of the upper connecting rod 1-13 are connected through the middle connecting rod 1-14.

In this embodiment, the lower connecting rods 1-12, the upper connecting rods 1-13 and the middle connecting rods 1-14 are straight steel pipes, the lower ends of the lower connecting rods 1-12 and the lower ends of the upper connecting rods 1-13 are welded and fixed on the transverse steel pipes 1-11, and the middle connecting rods 1-14 are fixedly connected with the lower connecting rods 1-12 and the upper connecting rods 1-13 in a welding manner. The connecting rods are flat steel pipes and are fixedly connected with the triangular plane trusses in a welding mode.

As shown in fig. 11 and 20, two adjacent arch steel trusses in each arch segment 1-100 and two adjacent arch steel trusses in each steel arch segment 1-2 are fastened and connected into a whole through a transverse connecting frame;

each arch steel truss comprises two arch plane trusses which are symmetrically distributed left and right, the two arch plane trusses are vertically distributed and are distributed along the longitudinal bridge direction, and the two arch plane trusses are connected through a plurality of connecting rod pieces; each arched plane truss is formed by connecting a lower chord member 1-21, an upper chord member 1-22 positioned right above the lower chord member 1-21 and a plurality of web members 1-23 connected between the lower chord member 1-21 and the upper chord member 1-22.

In this embodiment, m=5.

In actual processing, the value of M can be correspondingly adjusted according to specific requirements.

In this embodiment, the lower chord member 1-21, the upper chord member 1-22 and the web member 1-23 are all flat steel plates, and the web member 1-23 is fixedly connected with the lower chord member 1-21 and the upper chord member 1-22 in a welding manner. The connecting rod piece is a straight steel pipe and is fixedly connected with the arched plane truss in a welding mode.

In this embodiment, each lower connecting rod 1-12 is connected to the lower chord member 1-21 adjacent to the lower connecting rod and the lower chord member 1-21 adjacent to the lower connecting rod in front and back through a horizontal hinge shaft 29, each upper connecting rod 1-13 is connected to the upper chord member 1-22 adjacent to the upper connecting rod and the upper chord member 1-22 adjacent to the upper connecting rod in front and back through an adjustable connecting piece, and the adjustable connecting piece is arranged along the longitudinal bridge.

In actual use, the front end and the rear end of the arch support frame 100 are respectively supported on the arch frame hinging seat 20, the front end and the rear end of the arch support frame 100 are respectively provided with a transverse steel pipe 1-11, and the transverse steel pipes 1-11 are connected with the supported arch frame hinging seat 20 in a hinging manner, so that the deformation requirement of the arch support frame 100 can be effectively met. And, each of the arch hinge bases 20 is stably supported by one arch base beam 23. In the actual construction process, the arch support frame 100 can be simply and conveniently pushed to move along the transverse bridge by synchronously pushing the two arch abutment beams 23 along the transverse bridge, so that the arch support frame 100 can be moved out from the position right below the constructed arch rib for subsequent use or dismantling.

In this embodiment, as shown in fig. 2, the middle arch includes 3 steel arches arranged from left to right along the transverse bridge, and the left arch and the right arch each include one steel arch.

The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a steel bow member segmental motion and hoist system for construction of upper supporting arch bridge which characterized in that: comprises a cable crane for hoisting the arch frame assembling sections (1-1) of the assembled steel arch frame (1) and an arch frame sectional transferring device for moving the arch frame assembling sections (1-1) one by one;

the assembled steel arch (1) is a steel arch for constructing the arch rib (2) of the constructed upper bearing arch bridge, the assembled steel arch (1) is arranged along the longitudinal bridge direction and is formed by splicing a plurality of arch assembly sections (1-1) arranged from front to back along the longitudinal bridge direction; the front end and the rear end of the arch rib (2) are respectively supported on a permanent support (6), and the permanent support (6) is a reinforced concrete support; the arch ribs (2) are distributed along the longitudinal bridge direction and are reinforced concrete arch rings, and the arch ribs (2) are supported right above the assembled steel arch frames (1); the constructed upper-bearing arch bridge comprises an arch rib (2) and a main beam supported on the arch rib (2), wherein the front end and the rear end of the main beam are respectively supported on a bridge abutment (8), the main beam is horizontally arranged and comprises a middle beam section (3) supported on the arch rib (2) and two side beam sections (4) respectively positioned on the front side and the rear side of the middle beam section (3), the middle beam section (3) is connected between the two side beam sections (4) and is arranged along the longitudinal bridge direction, and the middle beam section (3) is fixedly connected with the arch rib (2) through a plurality of vertical upright posts (5) arranged along the longitudinal bridge direction from front to rear; a plurality of supporting pier columns (7) which are vertically distributed are distributed below each side beam section (4) from front to back along the longitudinal bridge direction, the supporting pier columns (7) are reinforced concrete pier columns, each side beam section (4) is supported on one bridge abutment (8) and a plurality of supporting pier columns (7), and one bridge abutment (8) and a plurality of supporting pier columns (7) supported below each side beam section (4) form a side beam section supporting structure; the two side beam section supporting structures are respectively a front side beam section supporting structure positioned at the front side of the arch rib (2) and a rear side beam section supporting structure positioned at the rear side of the arch rib (2), and the two permanent supports (6) are respectively a front side support positioned below the front end of the arch rib (2) and a rear side support positioned below the rear end of the arch rib (2);

The arch frame sectional transferring device comprises an assembling section moving device for horizontally moving the arch frame assembling sections (1-1) one by one and a horizontal moving channel for horizontally moving the assembling section moving device, wherein the horizontal moving channel is horizontally arranged and is arranged along a longitudinal bridge direction;

the horizontal moving channel is arranged on the rear side beam section supporting structure, and the rear side beam section supporting structure is a moving channel supporting structure; the horizontal moving channel comprises a longitudinal supporting beam (3-1) supported on the moving channel supporting structure, the assembly section moving device is a horizontal moving device which can move back and forth on the longitudinal supporting beam (3-1) and drive the arch frame assembly section (1-1) to synchronously move in the moving process, and the longitudinal supporting beam (3-1) is horizontally arranged and is arranged along the longitudinal bridge direction; the horizontal moving device is arranged on the longitudinal supporting beam (3-1), and the arch frame assembly section (1-1) is horizontally supported on the horizontal moving device; the rear end of the longitudinal support beam (3-1) is a bridge abutment supporting end supported on a bridge abutment (8) in the moving channel supporting structure, and the front end of the longitudinal support beam (3-1) is a hoisting end; a horizontal limiting piece (9) for limiting the horizontal moving device is arranged on the lifting end of the longitudinal supporting beam (3-1);

The cable crane comprises a front tower (17) and a rear tower (17), working cables (17-8) arranged on the two towers (17) and a trolley capable of moving back and forth along the working cables (17-8) and hoisting the arch frame assembly section (1-1), wherein the trolley is arranged on the working cables (17-8) and is positioned between the two towers (17), and the trolley is positioned above the arch rib (2); the two towers (17), the arch rib (2) and the longitudinal supporting beam (3-1) are positioned on the same vertical surface, and the two towers (17) are respectively a front tower positioned at the front side of the arch rib (2) and a rear tower positioned at the rear side of the arch rib (2);

the support pier column (7) at the forefront side in the rear side beam section support structure is a front pier column, the lifting end of the longitudinal support beam (3-1) is positioned at the front side of the rear tower, the lifting end of the longitudinal support beam (3-1) is supported on the front pier column, and the longitudinal support beam (3-1) is a horizontal support beam penetrating through the middle of the rear tower; the rear tower and the front pier are both supported on the rear support, and the front pier is located on the front side of the rear tower.

2. The steel arch segmental moving and hoisting system for constructing an upper bearing arch bridge according to claim 1, wherein: the two bridge decks (8) are respectively a front bridge deck supported below the front end of the main beam and a rear bridge deck supported below the rear end of the main beam, a front anchor ingot (15-1) is arranged right in front of the front bridge deck, and a rear anchor ingot (15-2) is arranged right behind the rear bridge deck;

Each tower (17) is provided with an arch temporary fixing mechanism, each arch temporary fixing mechanism comprises a left group of buckling ropes (17-10) and a right group of buckling ropes, wherein the buckling ropes are symmetrically distributed, and temporarily fix the arch assembling sections (1-1) which are hoisted in place, and each group of buckling ropes (17-10) and one vertical supporting frame (17-1) are distributed on the same vertical plane; each group of buckling ropes (17-10) comprises a plurality of buckling ropes (17-10) which are arranged on the same vertical surface from top to bottom, and the plurality of buckling ropes (17-10) are arranged along the longitudinal bridge direction;

a plurality of buckling rope pulleys (17-11) for installing buckling ropes (17-10) are arranged on each vertical supporting frame (17-1) in the cable crane from top to bottom, all the buckling rope pulleys (17-11) arranged on each vertical supporting frame (17-1) are positioned on the same vertical plane, and each buckling rope (17-10) is arranged on one buckling rope pulley (17-11);

the front end of each buckling rope (17-10) in the rear tower is fixed on an arch frame assembling section (1-1) which is hoisted in place, and the rear end of each buckling rope (17-10) in the rear tower is fixed on a rear anchor (15-2);

the rear end of each buckling rope (17-10) in the front tower is fixed on one arch frame assembly section (1-1), and the front end of each buckling rope (17-10) in the front tower is fixed on a front anchor block (15-1).

3. A steel arch segmental moving and hoisting system for constructing an upper supported arch bridge according to claim 1 or 2, wherein: each tower (17) comprises an assembled frame body, and the assembled frame body comprises a left vertical support frame (17-1) and a right vertical support frame which are symmetrically distributed; two vertical support frames (17-1) in the rear tower are supported on the rear side support, the two vertical support frames (17-1) in the rear tower are symmetrically arranged on the left side and the right side of the horizontal moving channel, and the clear distance between the two vertical support frames (17-1) in the rear tower is larger than the width of the horizontal moving channel.

4. A steel arch segmental moving and hoisting system for constructing an upper supported arch bridge according to claim 3, wherein: each tower (17) further comprises a frame base (17-3) for mounting at the bottom of the assembled frame, the frame bases (17-3) are horizontally arranged and are arranged along the transverse bridge direction, and the assembled frame is positioned right above the frame bases (17-3);

the bottom of each vertical supporting frame (17-1) is provided with a tripod (17-4) arranged on the frame base (17-3), and the bottoms of the tripods (17-4) are connected with the frame base (17-3) positioned below the tripods in a hinged manner; a bottom distribution beam (17-7) is arranged right below each frame body base (17-3), and the bottom distribution beams (17-7) are horizontally arranged and are arranged along the transverse bridge direction; a bottom distribution beam (17-7) at the bottom of the rear tower is fixed on the rear side support, and a bottom distribution beam (17-7) at the bottom of the front tower is fixed on the front side support.

5. The steel arch segmental moving and hoisting system for constructing an upper bearing arch bridge according to claim 4, wherein: the frame body base (17-3) comprises a horizontal base (17-31) and a hinging seat (17-32) arranged on the horizontal base (17-31), the horizontal base (17-31) is horizontally supported on the bottom distribution beam (17-7), and the bottom of the tripod (17-4) is connected with the hinging seat (17-32) positioned below the tripod in a hinging manner;

the horizontal base (17-31) is a sliding base capable of horizontally moving along the transverse bridge direction on the bottom distribution beam (17-7), and the bottom distribution beam (17-7) is provided with a guide piece for guiding the horizontal base (17-31), wherein the guide piece is horizontally arranged and is arranged along the transverse bridge direction.

6. A steel arch segmental moving and hoisting system for constructing an upper supported arch bridge according to claim 1 or 2, wherein: a cable saddle (17-6) for installing a working cable (17-8) is arranged on each vertical supporting frame (17-1) in the tower (17);

the number of the working ropes (17-8) is two, the two working ropes (17-8) are distributed along the longitudinal bridge direction and are symmetrically distributed above the left side and the right side of the arch rib (2); each working cable (17-8) is provided with a front lifting trolley and a rear lifting trolley, and the two lifting trolleys are positioned between the two towers (17); the hoisting device is used for hoisting the paired arch frame assembly sections (1-1) of the four hoisting trolley groups in the cable crane;

The two working ropes (17-8) are respectively a left working rope and a right working rope positioned on the right side of the left working rope, and the two vertical supporting frames (17-1) in each tower (17) are respectively a left supporting frame and a right supporting frame positioned on the right side of the left supporting frame; the left working cable is supported on the left support frames of the two towers (17), and the right working cable is supported on the right support frames of the two towers (17).

7. A steel arch segmental moving and hoisting system for constructing an upper supported arch bridge according to claim 1 or 2, wherein: each supporting pier column (7) comprises two vertical pier columns (7-1) which are symmetrically arranged left and right and a cover beam (7-2) which is horizontally supported on the two vertical pier columns (7-1), the cover beams (7-2) are horizontally arranged and are arranged along the transverse bridge direction, and the longitudinal supporting beams (3-1) are supported on a plurality of cover beams (7-2) in the moving channel supporting structure;

the arch centering segmented transferring device further comprises a limiting rope (14) for limiting the movable arch centering assembly segment (1-1), the limiting rope (14) is located above the horizontal movement channel, the limiting rope (14) is located behind the assembly segment moving device, the rear end of the limiting rope (14) is fixed on a rear anchor (15-2) or an anchoring foundation located right behind the horizontal movement channel, and the front end of the limiting rope (14) is fixed on the movable arch centering assembly segment (1-1).

8. A method of sectional movement and lifting of an assembled steel arch using the system of claim 1, wherein: the assembled steel arch (1) comprises a vault splicing section and front and rear symmetrically arranged side splicing frames, wherein the vault splicing section is connected between the two side splicing frames, each side splicing frame is formed by splicing a plurality of arch splicing sections (1-1) arranged from bottom to top, and the vault splicing section is one arch splicing section (1-1);

when the assembled steel arch (1) is moved and hoisted in sections, the process is as follows:

step one, constructing a bridge lower support structure: respectively constructing the two permanent supports (6) and the two side beam section supporting structures to obtain a front side beam section supporting structure, a rear side beam section supporting structure, a front side support and a rear side support which are formed by construction;

Step three, assembling the steel arch frame: assembling the assembled steel arch (1), comprising the following steps:

step 301, splicing the side splicing frames: symmetrically splicing the two side splicing frames of the spliced steel arch (1);

when any side splicing frame is spliced, a plurality of arch frame splicing sections (1-1) forming the side splicing frame are spliced from bottom to top, and the process is as follows:

step 3011, assembling a first arch frame assembling section: the arch frame sectional transferring device is adopted to forward translate the currently assembled arch frame assembling section (1-1) to the position above the front end of the horizontal moving channel, and then the hoisting trolley of the cable crane is adopted to hoist and lower the arch frame assembling section (1-1) in place, so that the assembling process of the currently assembled arch frame assembling section (1-1) is completed;

in the step, the currently spliced arch frame splicing section (1-1) is the lowest arch frame splicing section (1-1) of the side splicing frame;

step 3012, assembling the last arch frame assembling section: the arch frame sectional transferring device is adopted to forward translate the last spliced arch frame splicing section (1-1) to the position above the front end of the horizontal moving channel, then the hoisting trolley of the cable crane is adopted to hoist and lower the arch frame splicing section (1-1) in place, and meanwhile the arch frame splicing section (1-1) which is put in place is connected with the arch frame splicing section (1-1) which is positioned below the arch frame splicing section and is spliced, so that the splicing process of the current spliced arch frame splicing section (1-1) is completed;

Step 3013, repeating step 3012 one or more times, completing the assembling process of all arch frame assembling sections (1-1) in the side splicing frames, and obtaining the assembled side splicing frames;

step 302, splicing vault splicing sections: after the two side splicing frames of the assembled steel arch frame (1) are assembled, adopting the arch frame segmentation transfer device to forward translate the arch frame splicing section to the upper part of the front end of the horizontal moving channel, then adopting the crane trolley of the cable crane to hoist and lower the arch frame splicing section in place, and simultaneously connecting the lower arch frame splicing section with the two assembled side splicing frames to complete the folding process of the assembled steel arch frame (1) and obtain the assembled steel arch frame (1) which is assembled and formed.

9. The method according to claim 8, wherein: the two side splicing frames are respectively a front splicing frame positioned at the front side of the vault splicing section and a rear splicing frame positioned at the rear side of the vault splicing section;

the two bridge decks (8) are respectively a front bridge deck supported below the front end of the main beam and a rear bridge deck supported below the rear end of the main beam, a front anchor ingot (15-1) is arranged right in front of the front bridge deck, and a rear anchor ingot (15-2) is arranged right behind the rear bridge deck;

the front end of each buckling rope (17-10) in the rear tower is fixed on an arch frame assembling section (1-1) which is hoisted in place in the rear side assembling frame, and the rear end of each buckling rope (17-10) in the rear tower is fixed on a rear anchor ingot (15-2);

the rear end of each buckling rope (17-10) in the front tower is fixed on one arch frame assembly section (1-1) in the front side assembly frame, and the front end of each buckling rope (17-10) in the front tower is fixed on a front anchor ingot (15-1);

In step 3012, after the arch frame assembly section (1-1) which is put in place is connected with the arch frame assembly section (1-1) which is positioned below the arch frame assembly section and is assembled, the arch frame assembly section (1-1) assembled in the step is also required to be temporarily fixed through one buckling rope (17-10).

10. A method according to claim 8 or 9, characterized in that: the number of the working ropes (17-8) is two, the two working ropes (17-8) are distributed along the longitudinal bridge direction and are symmetrically distributed above the left side and the right side of the arch rib (2); each working cable (17-8) is provided with a front lifting trolley and a rear lifting trolley, the two lifting trolleys are positioned between the two towers (17), and the two lifting trolleys are respectively a front running trolley (21) and a rear running trolley (22) positioned at the rear side of the front running trolley (21); the hoisting device is used for hoisting the paired arch frame assembly sections (1-1) of the four hoisting trolley groups in the cable crane;

the two working ropes (17-8) are respectively a left working rope and a right working rope positioned on the right side of the left working rope, and the two vertical supporting frames (17-1) in each tower (17) are respectively a left supporting frame and a right supporting frame positioned on the right side of the left supporting frame; the left working cable is supported on the left supporting frames of the two towers (17), and the right working cable is supported on the right supporting frames of the two towers (17);

When the first arch frame assembling section is assembled in the step 3011 and the last arch frame assembling section is assembled in the step 3012, the arch frame sectional transferring device is adopted to move the currently assembled arch frame assembling section (1-1) forward in a translation mode; when the front end of the arch frame assembly section (1-1) moves above the front pier stud, the moved arch frame assembly section (1-1) enters a hoisting area of the cable crane, at the moment, a front sports car (21) is connected with the front end of the moved arch frame assembly section (1-1), and the front sports car (21) is used for hoisting the front end of the moved arch frame assembly section (1-1); then, the arch frame sectional transferring device is utilized to continuously move the arch frame assembly section (1-1) forwards along the longitudinal bridge direction until the front end of the moved arch frame assembly section (1-1) is moved to the position above the front pier column, a rear sports car (22) is connected with the rear end of the moved arch frame assembly section (1-1), and the rear sports car (22) is used for hoisting the rear end of the moved arch frame assembly section (1-1); after the rear sports car (22) is connected with the rear end of the movable arch frame assembling section (1-1), the hoisting process of the arch frame assembling section (1-1) by the hoisting device of the cable crane is completed, and the arch frame assembling section (1-1) is hoisted and lowered into place by the hoisting device of the cable crane.