CN213571554U

CN213571554U - Suspension type anchorage portal

Info

Publication number: CN213571554U
Application number: CN202021372112.7U
Authority: CN
Inventors: 孙嘉; 祁建林; 焦文政; 徐翾玄
Original assignee: CCCC SHEC Second Engineering Co Ltd
Current assignee: CCCC SHEC Second Engineering Co Ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-06-29
Anticipated expiration: 2030-07-14

Abstract

The utility model belongs to the technical field of suspension bridge construction, concretely relates to suspension type anchorage portal, including stand, longeron, crossbeam, lifting equipment, steering gear, the quantity of stand is a plurality of, divides 2 rows to set up, vertically connects many longerons on the top between every row of stand, transversely connects many crossbeams on the top between 2 rows of stands, 2 rows of stands are vertical to be connected on the scattered cable saddle basis, lifting equipment connects on the crossbeam, the one end of crossbeam hangs out, connects steering gear on the overhang end of crossbeam; the problem of current well door column type portal installation need add the landing leg, the installation difficulty, the anti-wind is poor, poor stability, and when carrying out main push-towing rope construction according to the suspension bridge design, can not realize turning to the function and can not cooperate the linear problem of suspension bridge, can let the portal frame both can be used for scattered cable saddle hoist and mount construction and can be used for main push-towing rope to pull the construction, a multi-purpose has been reduced extravagantly, economic benefits is obvious, the place is arranged more in a flexible way simultaneously, the adaptation is in various types place, the practicality is high.

Description

Suspension type anchorage portal

Technical Field

The utility model belongs to the technical field of suspension bridge construction, concretely relates to suspension type anchorage portal.

Background

In the suspension bridge cable saddle hoisting and main cable traction construction process, the cable saddle hoisting can adopt portal hoisting, the existing portal column type portal installation needs to add supporting legs, the installation is difficult, the wind resistance is poor, the stability is poor, and when the main cable construction is carried out according to the suspension bridge design, the steering function can not be realized and the suspension bridge is not matched in a linear shape.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of suspension type anchorage portal purpose is overcome among the prior art door column type portal installation and need add the landing leg, and the installation difficulty, the anti-wind is poor, poor stability to when carrying out main push-towing rope construction according to the suspension bridge design, can not realize turning to the function and can not cooperate the linear problem of suspension bridge.

For this, the utility model provides a suspension type anchorage portal, including stand, longeron, crossbeam, lifting by crane equipment, turn to the device, the quantity of stand is a plurality of, and a plurality of stands divide 2 rows of settings, vertical many longerons of connection above the top between every row of stand, many crossbeams of horizontal connection above the top between 2 rows of stands, and 2 rows of vertical connections of stand are on scattered cable saddle basis, and lifting by crane equipment connects on the crossbeam, and the one end of crossbeam is hung, and the hanging of crossbeam is served and is connected and turn to the device.

The cable saddle further comprises a connecting piece, and the other end of the cross beam is connected with the cable saddle foundation through the connecting piece.

Still include the mount, the mount is connected on the scattered cable saddle basis of stand bottom and the mount stretches out to the stand outside, and the other end of mount and crossbeam passes through the connecting piece to be connected

The connecting piece is a steel bar.

The steel bar fixing device further comprises a screw buckle, and the screw buckle is connected with the steel bar.

The steering device is a steering wheel.

The upper surface of the cross beam is connected with the upper surface of the longitudinal beam through the stabilizing structural member.

The stable structure is a triangular structure.

The upright posts are lattice posts.

The utility model has the advantages that: the utility model provides a suspension type anchorage portal frame, including stand, longeron, crossbeam, lifting equipment, steering gear, the quantity of stand is a plurality of, and a plurality of stands divide 2 rows to set up, vertically connects many longerons on the top between every row of stand, transversely connects many crossbeams on the top between 2 rows of stands, 2 rows of stands are vertically connected on scattered cable saddle basis, lifting equipment connects on the crossbeam, the one end of crossbeam hangs out, connect steering gear on the suspension end of crossbeam;

the single-side cantilever type design (one end of the cross beam is hung out) is adopted, the construction flexibility is better, the construction can be better matched with the erection of a main cable of a suspension bridge, the practicability is higher, a steering device arranged at the cantilever end of the single-side cantilever type design can be used for arranging a cable placing area on a rear anchor slope, and the single-side cantilever type design also can be used for arranging the cable placing area on the cantilever side of a portal frame without interference of a portal frame upright column, so that the site arrangement can be better carried out; the portal frame can be arranged in two forms, the first form is as described above, and the second form is that stable structural members (upright posts and inclined struts) are added above the longitudinal beams and the cross beams to form a triangular structure, so that the portal frame is better in stress and can bear larger weight; the upright columns are lattice columns, and compared with other hoisting portal frames, the bridge has the advantages of light dead weight, high stability, good wind resistance and simplicity in operation, the angle of the cable saddle is adjusted through hoisting equipment, the installation precision of the cable saddle is easier to control, the engineering quality is guaranteed, the anchor concrete has a certain inclination according to the design of the bridge, the mountain area is narrow, the hoisting portal frames are easier to adapt to the local terrain, and the construction operability is high; this kind of mode can let the portal not only can be used for scattered cable saddle hoist and mount construction but also can be used for main push-towing construction, and a frame is multi-purpose, has reduced the waste, and economic benefits is obvious, and the place is arranged more in a flexible way simultaneously, and the adaptation is in various types of places, and the practicality is high.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a front view of a suspended anchor gantry structure;

FIG. 2 is a top view of a suspension type tie back mast structure;

FIG. 3 is a left side view of one form of a suspended anchor gantry structure;

FIG. 4 is a right side view of one form of a suspended anchor gantry structure;

FIG. 5 is a left side view of another version of a suspension anchor gantry structure;

FIG. 6 is a right side view of another version of a suspension anchor gantry structure;

FIG. 7 is a top view of the arrangement of the cable pay-off area of the main cable on the right;

fig. 8 is a front view of the arrangement of the cable pay-off area of the main cable on the right.

Description of reference numerals: 1. a column; 2. a stringer; 3. a cross beam; 4. a scissor support; 5. parallel connection; 6. a column shoe; 7. a cable saddle foundation; 8. hoisting equipment; 9. bracing; 10. climbing a ladder; 11. A connecting member; 12. a turnbuckle; 13. a fixed mount; 14. a guardrail; 15. a steering device; 16. A main cable centerline; 17. stabilizing the structural member; 18. a main cable strand; 19. a left main cable center line; 20. a left loose cable saddle foundation of the terrace bank; 21. a vertical cable releasing machine; 22. a rope storage area; 23. a bridge centerline; 24. entering an anchor dragging device; 25. a puller; 26. a front anchor room traction system; 27. The center line of the right main cable.

Detailed Description

Example 1:

as shown in fig. 1-4, a suspension type anchorage portal frame comprises a plurality of upright columns 1, longitudinal beams 2, cross beams 3, a hoisting device 8 and a steering device 15, wherein the upright columns 1 are arranged in 2 rows, the plurality of upright columns 1 are longitudinally connected with the plurality of longitudinal beams 2 on the top end between every two rows of upright columns 1, the plurality of cross beams 3 are transversely connected on the top end between every two rows of upright columns 1, the 2 rows of upright columns 1 are vertically connected on a cable saddle foundation 7, the hoisting device 8 is connected on the cross beams 3, one end of each cross beam 3 is suspended, and the suspended end of each cross beam 3 is connected with the steering device 15.

Adopt unilateral cantilever type design (the one end of crossbeam 3 is hung out) better in the construction flexibility, can cooperate suspension bridge main push-towing rope to erect the construction better, the practicality is higher, turn to device 15 at its cantilever end setting, can set up on the back anchor slope and place the cable district, owing to for the cantilever design, consequently also can set up in portal cantilever side and place the cable district, do not have the portal stand to disturb, can carry out the place arrangement better, adaptation in each type place, the practicality is high.

Example 2:

on the basis of the embodiment 1, the cable saddle foundation further comprises a connecting piece 11, and the other end of the cross beam 3 is connected with the cable saddle foundation 7 through the connecting piece 11. The connecting piece 11 is connected with the top cross beam 3, so that the non-cantilever side of the portal frame is guaranteed to be in a stressed state, and the structural stability is improved.

The cable saddle is characterized by further comprising a fixing frame 13, the fixing frame 13 is connected to the cable saddle base 7 at the bottom end of the upright post 1, the fixing frame 13 extends out of the outer side of the upright post 1, and the fixing frame 13 is connected with the other end of the cross beam 3 through a connecting piece 11. The stand 7 of the other end of crossbeam 3 adopts and arranges mount 7 in the lateral position of column base 6, is connected with top crossbeam 3 through connecting piece 11, and the installation is simple and convenient, and stability is strong, and maneuverability is strong.

The connecting piece 11 is a steel bar. The steel bar connection has light dead weight, high strength, small occupied space, low cost and high applicability.

The steel bar reinforced concrete structure also comprises a screw thread 12, wherein the screw thread 12 is connected with a steel bar. The length of the steel bar is adjusted by adopting the turnbuckle 12 for adjusting the internal prestress of the steel bar, the non-cantilever side of the portal frame is ensured to keep a stress state, the structural stability is increased,

the steering device 15 is a steering wheel. The steering wheel that sets up at its cantilever end can establish on the back anchor slope and place the cable district, owing to for the cantilever design, consequently also can establish at portal cantilever side and place the cable district, does not have the portal stand to disturb, can carry out the place better and arrange, and the steering wheel simple structure is stable, and the dead weight is light, and easy operation is convenient, and the practicality is strong.

As shown in fig. 5-6, the cross beam structure further comprises a stabilizing structural member 17, and the upper surface of the cross beam 3 and the upper surface of the longitudinal beam 2 are connected through the stabilizing structural member 17. And the vertical columns and the inclined struts are added above the longitudinal beams 2 and the cross beams 3 to serve as stable structural members 17, so that the portal frame can bear larger weight.

The stabilizing structure 17 is a triangular structure. The triangular structure has better stress and more stable structure.

The upright column 1 is a lattice column. The upright column 1 adopts a lattice column, so that the stability is high, the dead weight is light, the wind resistance is good, and the operation is simple.

Example 3:

on the basis of the embodiment 2, a ladder stand 10 is arranged on the upright post 1 for a worker to walk up and down; the top of the beam is made of profile steel as a cross beam 3 and a longitudinal beam 2, and handrails 14 are arranged on two sides of the outer side of the cross beam 3 for ensuring walking safety; the hoisting equipment is erected on the cross beam 3 and used for hoisting, adjusting and lowering the cable saddle, lifting lugs are arranged on the cross beam 3 and connected with the cable saddle through a pulley block, the pulley block is fixedly arranged on the cross beam 3, the hoisting equipment adopts a winch, the self weight of the winch is light, the structure is simple and stable, and the operability is strong; 2 winches are adopted for hoisting, and the cable saddle is hoisted by two points, so that the gravity center is more stable, and the conditions of spin and the like are not easy to generate; the angle of the cable saddle is adjusted through the winch, so that the installation precision of the cable saddle is controlled more easily, and the engineering quality is ensured; according to the design of the bridge, the anchor concrete has a certain inclination, the mountain area is narrow, the hoisting portal frame is easy to adapt to the local terrain, and the construction operability is high. This kind of mode can let the portal not only can be used for scattered cable saddle hoist and mount construction but also can be used for main push-towing construction, and a frame is multi-purpose, has reduced the waste, and economic benefits is obvious, and the place is arranged more in a flexible way simultaneously, and the adaptation is in various types of places, and the practicality is high.

Example 4:

on the basis of embodiment 3, the anchor portal frame of the Jinan Jinjiang river bridge is designed:

2 rows of 700 x 300H-shaped steel are adopted as upright posts 1, each row of upright posts 1 comprises 2 upright posts 1, each upright post 1 adopts a lattice type upright post, a post foot 6 of each upright post 1 is vertically connected to a cable saddle foundation 7 by adopting an embedded part, and the embedded part adopts an M30 bolt and an embedded steel plate; double splicing grooves 20 are transversely distributed between the two rows of upright columns 1 to be used as a cross brace 4 and a parallel connection 5, and the double splicing grooves 20 are longitudinally distributed between each row of upright columns 1 to be used as an inclined brace 9 and a parallel connection 5; the lateral column foot 6 is connected with the top cross beam 3 through a phi 18 steel bar; 12 brackets can be arranged at the positions of the lateral column feet 6, the lateral column feet 6 are connected with one end of a phi 18 steel bar through the 12 brackets, and the other end of the phi 18 steel bar is connected with the top cross beam 3; a screw thread 12 is adopted on the phi 18 steel bar to adjust the internal prestress of the steel bar; a vertical ladder is arranged on the upright post 1 for workers to walk up and down; 700 x 300H-shaped steel is adopted at the top of the upright post 1 as a cross beam 3 and a longitudinal beam 2, and guardrails 14 are arranged on two sides of the outer side of the cross beam 3; a winch is erected on the cross beam 3 and used for lifting, adjusting and lowering the cable saddle, lifting lugs are arranged on the cross beam 3 and connected with the cable saddle through a pulley block, and steering wheels are arranged on the cantilever side of the cross beam;

in the hoisting construction of the bulk cable saddle of the Jinan Jinshajiang bridge, a freight vehicle transports the bulk cable saddle to a designated position below a portal frame, the bulk cable saddle is lifted by a hoisting portal frame, the car is placed on the ground after leaving, a wood board is laid on the ground in advance to prevent the bulk cable saddle from damaging the concrete surface of an anchorage, then a worker welds a lifting lug for temporary fixation on the back of the car, the bulk cable saddle is lifted after welding is finished, the angle of the bulk cable saddle is controlled by a hoisting point steel wire rope, measurement and monitoring are carried out, then the bulk cable saddle is placed at the lower position of the designated position through a winch, the bulk cable saddle is connected with a bulk cable saddle bottom plate and is simultaneously connected with a bulk cable saddle temporary fixing system, and the steel wire rope is loosened after connection is finished;

in the main cable traction construction of the Jinan Jinjiang river bridge, a cable placing area (as shown in fig. 7) is arranged on the top slope of a tunnel anchor, wherein a main cable strand 18, a left main cable central line 19, a left scattered cable saddle foundation 20 of a terrace, a vertical cable placing machine 21, a cable storing area 22, a bridge central line 23, an anchor pulling device 24, a pulling device 25, a front anchor chamber traction system 26, a right main cable central line 27 and a main cable central line 16 are all arranged according to the positions shown in fig. 7 and fig. 8, the cable placing area can be arranged according to actual conditions, fig. 7 is only used for illustration, and a main cable traction cable is steered by using a steering wheel on a suspension type anchor portal frame, so that the main cable construction is carried out in a matching manner (as shown in fig. 8);

in the main cable traction construction, due to the advantages of the cantilever type portal frame, the stand column does not interfere with the wiring of the steel wire rope, so that a cable placing area can be arranged on the cantilever side of the portal frame, the steel wire rope is turned by the steering wheel on the cable scattering saddle portal frame, and the main cable construction is matched.

In the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "right", etc., it is based on the orientation or positional relationship shown in the drawings, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The above examples are merely illustrative of the present invention and do not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.

Claims

1. The utility model provides a suspension type anchorage portal which characterized in that: including stand (1), longeron (2), crossbeam (3), lift by crane equipment (8), turn to device (15), the quantity of stand (1) is a plurality of, a plurality of stands (1) divide 2 rows to set up, vertically connect many longerons (2) above the top between every row of stand (1), many crossbeams (3) of transverse connection above the top between 2 rows of stand (1), 2 rows of stand (1) vertical connection is on scattered cable saddle basis (7), it connects on crossbeam (3) to lift by crane equipment (8), the one end of crossbeam (3) is hung out, the end of hanging of crossbeam (3) is served and is connected and turn to device (15).

2. A suspension tie mast as recited in claim 1, wherein: the cable saddle further comprises a connecting piece (11), and the other end of the cross beam (3) is connected with the cable saddle foundation (7) through the connecting piece (11).

3. A suspension tie mast as recited in claim 2, wherein: the cable saddle is characterized by further comprising a fixing frame (13), wherein the fixing frame (13) is connected to a cable saddle base (7) at the bottom end of the upright post (1), the fixing frame (13) extends out of the outer side of the upright post (1), and the fixing frame (13) is connected with the other end of the cross beam (3) through a connecting piece (11).

4. A suspension tie mast as recited in claim 2, wherein: the connecting piece (11) is a steel bar.

5. A suspension tie mast as recited in claim 4, wherein: the steel bar reinforced concrete structure also comprises a screw thread (12), wherein the screw thread (12) is connected with the steel bar.

6. A suspension tie mast as recited in claim 1, wherein: the steering device (15) is a steering wheel.

7. A suspension tie mast as recited in claim 1, wherein: the cross beam structure is characterized by further comprising a stabilizing structural part (17), and the upper surface of the cross beam (3) is connected with the upper surface of the longitudinal beam (2) through the stabilizing structural part (17).

8. A suspension tie mast as recited in claim 7, wherein: the stabilizing structural member (17) is of a triangular structure.

9. A suspension tie mast as recited in claim 1, wherein: the upright post (1) is a lattice column.