CN113789725B - Suspension bridge construction method and lifting device - Google Patents
Suspension bridge construction method and lifting device Download PDFInfo
- Publication number
- CN113789725B CN113789725B CN202111064226.4A CN202111064226A CN113789725B CN 113789725 B CN113789725 B CN 113789725B CN 202111064226 A CN202111064226 A CN 202111064226A CN 113789725 B CN113789725 B CN 113789725B
- Authority
- CN
- China
- Prior art keywords
- lifting
- ropes
- cable saddle
- bearing
- hoisting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a construction method of a suspension bridge, which comprises the following steps: preparing construction; arranging a portal frame; erecting a catwalk system; and (5) hoisting the cable saddle. The lifting device comprises a travelling mechanism arranged on the portal frame, a lifting mechanism arranged on the travelling mechanism and a lifting assembly which is arranged on the lifting mechanism and can rotate, wherein a rotary driving mechanism for driving the lifting assembly to rotate is arranged on the lifting mechanism. The construction method of the suspension bridge reduces the restriction of the suspension saddle hoisting to the construction period and improves the construction efficiency and the safety. The lifting device can accurately and flexibly adjust the position during lifting according to the installation position of the cable saddle, and achieves quick positioning.
Description
Technical Field
The invention relates to the technical field of suspension bridges, in particular to a suspension bridge construction method and a lifting device.
Background
The cable saddle is one of the main components of the upper structure of the suspension bridge, and is a permanent stress member for supporting the main cable and enabling the main cable to change direction smoothly. Along with the increasing demand of oversized bridges on steel components, the requirements of the cable saddle on machining precision and machining quality are high, the technical process difficulty is high, the machining and manufacturing are seriously restricted to the engineering progress, and the high requirements are put on the machining and manufacturing of the cable saddle, so that the requirements are also heavy difficulties in the construction of the whole suspension bridge.
In the prior art, a construction process for installing a catwalk and a cable saddle is available, and when a cable tower is constructed, a cable saddle hoisting portal is installed by utilizing a tower crane, and the cable saddle is manually placed at an installation position in an auxiliary manner; then installing catwalk and its auxiliary structure, utilizing the cable saddle to hoist back clearance installation catwalk bearing cable, handrail cable and other structures, this construction process does not have catwalk structure interference when cable saddle hoist, but cable saddle installation severely restricts catwalk installation time, and occupation time is long, influences main cable construction period.
In summary, the existing construction method achieves better effects under proper working conditions, but the construction technology is imperfect in terms of improving construction efficiency, reducing the difficulty of installing a catwalk structure, reducing the influence of saddle installation on construction period and the like.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art and providing a suspension bridge construction method which reduces the restriction of cable saddle hoisting to construction period and improves the construction efficiency and safety;
the lifting device can accurately and flexibly adjust the position during lifting according to the installation position of the cable saddle, and achieves quick positioning.
In order to solve the technical problems, the invention adopts the following technical scheme:
a construction method of a suspension bridge comprises the following steps:
s1: and (3) preparation of construction: determining the spatial position required by the hoisting of the portal and the cable saddle and the spatial position of the catwalk system;
s2: portal layout: arranging the portal frame at the top of a main tower;
s3: erecting a catwalk system: a catwalk system is arranged at the top of the main tower, so that the catwalk system is arranged in the portal in a penetrating way, a hoisting opening is reserved in front of or behind the main tower in the catwalk system, and a cover plate is detachably covered on the hoisting opening;
s4: hoisting a cable saddle: and removing the cover plate, installing a translatable lifting device at the top of the portal frame, and lifting the positioning cable saddles one by one through lifting openings by the lifting device.
As a further improvement of the above technical scheme:
the lifting device comprises a travelling mechanism arranged on the portal frame, a lifting mechanism arranged on the travelling mechanism and a rotatable lifting assembly arranged on the lifting mechanism, wherein a rotary driving mechanism used for driving the lifting assembly to rotate is arranged on the lifting mechanism, in the step S4, when the cable saddle is lifted, the cable saddle is firstly hung on the lifting assembly, then lifted through the lifting mechanism, after the cable saddle passes through a lifting opening, the travelling mechanism carries the cable saddle to translate, so that the cable saddle is displaced to an installation position, and then the rotary driving mechanism drives the lifting assembly to rotate so as to adjust the direction of the cable saddle until the positioning of the cable saddle is completed.
The lifting mechanism comprises a lifting winch, a lifting rope and a lifting plate, wherein the lifting winch is arranged on the travelling mechanism, the lifting plate is connected with the lifting winch through the lifting rope, and the lifting assembly and the rotary driving mechanism are arranged on the lifting plate.
The rotary driving mechanism comprises two rotary windlass which are respectively arranged at two sides of the hanging plate, wiring pieces are respectively arranged at two sides of the hanging object assembly, and the two rotary windlass and the two wiring pieces are respectively connected through pull ropes.
The catwalk system comprises two groups of bearing ropes, skirting ropes and handrail ropes which are respectively positioned on two sides of the portal frame, each group of bearing ropes, skirting ropes and handrail ropes are arranged at intervals from bottom to top, the bearing ropes are fixed on the main tower, the skirting ropes and the handrail ropes are both fixed on the portal frame, a bearing pad is arranged between the bearing ropes, a lifting opening is formed in the bearing pad, and the cover plate is fixed on the bearing ropes through buckles.
The bearing pad comprises wood ridges and steel wire meshes, wherein the wood ridges and the steel wire meshes are arranged on the wood ridges at intervals along the bearing ropes.
The main tower is provided with first saddles at positions corresponding to the bearing ropes, the bearing ropes are fixed on the first saddles, the positions corresponding to the skirting ropes of the door frame are provided with second saddles, the skirting ropes are fixed on the second saddles, the positions corresponding to the armrest ropes of the door frame are provided with third saddles, and the armrest ropes are fixed on the third saddles.
The lifting device comprises a travelling mechanism arranged on a portal frame, a lifting mechanism arranged on the travelling mechanism and a lifting assembly which is arranged on the lifting mechanism and can rotate, wherein a rotary driving mechanism for driving the lifting assembly to rotate is arranged on the lifting mechanism.
The lifting mechanism comprises a lifting winch, a lifting rope and a lifting plate, wherein the lifting winch is arranged on the travelling mechanism, the lifting plate is connected with the lifting winch through the lifting rope, and the lifting assembly and the rotary driving mechanism are arranged on the lifting plate.
As a further improvement of the above technical scheme:
the rotary driving mechanism comprises two rotary windlass which are respectively arranged at two sides of the hanging plate, wiring pieces are respectively arranged at two sides of the hanging object assembly, and the two rotary windlass and the two wiring pieces are respectively connected through pull ropes.
Compared with the prior art, the invention has the advantages that:
according to the construction method of the suspension bridge, the hoisting opening is reserved on the catwalk system, the cable saddle is hoisted, the catwalk system is prevented from interfering with the hoisting of the cable saddle, the catwalk system is erected after the cable saddle is installed, the restriction of the hoisting of the cable saddle on the construction period is reduced, the construction efficiency is improved, the catwalk system is hoisted after or in the process of erecting the catwalk system, the catwalk system can provide supporting protection for constructors, and the construction safety is improved. The construction method of the suspension bridge reduces the restriction of saddle hoisting on the construction period and improves the construction efficiency and the safety.
The lifting device comprises a travelling mechanism arranged on a portal frame, a lifting mechanism arranged on the travelling mechanism and a rotatable lifting assembly arranged on the lifting mechanism, wherein the lifting mechanism is provided with a rotary driving mechanism for driving the lifting assembly to rotate. The lifting mechanism can lift the cable saddle to realize lifting of the cable saddle, the travelling mechanism can drive the lifting mechanism to translate to realize translational motion of the cable saddle, and the rotary driving mechanism can adjust the azimuth of the cable saddle to realize accurate positioning of the cable saddle. The lifting device has lifting, translation and rotation functions, and the cable saddle is lifted by the lifting device, so that the position can be accurately and flexibly adjusted during lifting according to the installation position of the cable saddle, and the quick positioning is achieved.
Drawings
Fig. 1 is a schematic diagram of a construction method of a suspension bridge of the present invention.
Fig. 2 is a schematic diagram of a front view structure of the construction method of the suspension bridge of the present invention during the construction process.
Fig. 3 is a schematic side view of the construction method of the suspension bridge of the present invention (the hoisting device is not shown) during the construction process.
Fig. 4 is a schematic top view of a catwalk system of the suspension bridge construction method of the present invention.
Fig. 5 is a schematic side view of the catwalk system of the suspension bridge construction method of the present invention.
Fig. 6 is a schematic view of a part of a hoisting device of the construction method of the suspension bridge of the present invention.
The reference numerals in the drawings denote:
1. a door frame; 11. a second saddle; 12. a third saddle; 2. a cable saddle; 3. a catwalk system; 31. a load-bearing cable; 32. a skirting line; 33. a handrail rope; 34. a load bearing pad; 341. wood ridges; 342. a steel wire mesh; 4. a main tower; 41. a first saddle; 42. a cable saddle anchor plate; 5. hoisting the opening; 6. a cover plate; 61. a buckle; 7. a lifting device; 71. a walking mechanism; 72. a lifting mechanism; 721. a lifting winch; 722. a hanging rope; 723. a hanger plate; 73. a hanging component; 731. a wiring member; 732. hoisting a hook; 74. a rotary driving mechanism; 741. a rotary hoist; 742. a pull rope; 8. column foot anchor plate; 9. rod element segments; 91. a flange; 92. a deflection steel frame; 93. a channel steel pressing plate; 94. clamping the fixing assembly; 95. a transverse spandrel girder; 96. a locking device; 97. lifting lugs; 98. a sling; 99. and (5) hanging the wire.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific examples.
Embodiment one:
fig. 1 to 6 show an embodiment of a method for constructing a suspension bridge according to the present invention, which comprises the steps of:
s1: and (3) preparation of construction: determining the space position required by hoisting the portal 1 and the cable saddle 2 and the space position of the catwalk system 3;
s2: the portal 1 is arranged: arranging the portal 1 on the top of the main tower 4;
s3: catwalk system 3 erection: a catwalk system 3 is arranged at the top of the main tower 4, so that the catwalk system 3 is penetrated in the portal 1, a hoisting opening 5 is reserved in front of or behind the main tower 4 in the catwalk system 3, and a cover plate 6 is detachably covered on the hoisting opening 5;
s4: hoisting a cable saddle 2: and dismantling the cover plate 6, installing a translatable lifting device 7 at the top of the portal frame 1, and lifting the positioning cable saddle 2 one by one through the lifting opening 5 by the lifting device 7.
According to the construction method of the suspension bridge, the hoisting opening 5 is reserved on the catwalk system 3, the cable saddle 2 is hoisted, the interference of the catwalk system 3 to the hoisting of the cable saddle 2 is avoided, the catwalk system 3 is erected after the installation of the cable saddle 2 is not required to be waited, the restriction of the hoisting of the cable saddle 2 on the construction period is reduced, the construction efficiency is improved, the cable saddle 2 is hoisted after the catwalk system 3 is erected or in the process of erecting the catwalk system 3, the catwalk system 3 can provide the supporting and protecting effects of constructors, and the construction safety is improved. The construction method of the suspension bridge reduces the restriction of the hoisting of the cable saddle 2 on the construction period, and improves the construction efficiency and the safety.
In this embodiment, as shown in fig. 1 and 6, the lifting device 7 includes a travelling mechanism 71 provided on the gantry 1, a lifting mechanism 72 provided on the travelling mechanism 71, and a rotatable lifting assembly 73 provided on the lifting mechanism 72, and a rotation driving mechanism 74 for driving the lifting assembly 73 to rotate is provided on the lifting mechanism 72, in step S4, when the saddle 2 is lifted, the saddle 2 is first suspended on the lifting assembly 73, then lifted by the lifting mechanism 72, after the saddle 2 passes through the lifting opening 5, the travelling mechanism 71 moves with the saddle 2 to displace to the mounting position, and then the lifting assembly 73 is driven to rotate by the rotation driving mechanism 74 to adjust the orientation of the saddle 2 until the positioning of the saddle 2 is completed. The lifting mechanism 72 can lift the cable saddle 2 to realize lifting of the cable saddle 2, the traveling mechanism 71 can drive the lifting mechanism 72 to translate to realize translational motion of the cable saddle 2, and the rotary driving mechanism 74 can adjust the azimuth of the cable saddle 2 to realize accurate positioning of the cable saddle 2. The lifting device 7 has lifting, translation and rotation functions, and the cable saddle 2 is lifted by the lifting device 7, so that the position can be accurately and flexibly adjusted during lifting according to the installation position of the cable saddle 2, and the quick positioning is achieved.
In the present embodiment, as shown in fig. 1, the lifting mechanism 72 includes a lifting winch 721, a lifting rope 722, and a lifting plate 723, the lifting winch 721 is provided on the traveling mechanism 71, the lifting plate 723 is connected to the lifting winch 721 through the lifting rope 722, and the lifting assembly 73 and the rotation driving mechanism 74 are provided on the lifting plate 723. The cable saddle 2 is hung on the hanging plate 723, and the lifting winch 721 lifts with the hanging plate 723 and the cable saddle 2 by the hanging rope 722, so that the structure is simple and the operation is convenient.
In this embodiment, as shown in fig. 6, the rotary driving mechanism 74 includes two rotary winches 741 disposed on both sides of the suspending plate 723, and wire members 731 are disposed on both sides of the suspended object assembly 73, respectively, and the two rotary winches 741 and the two wire members 731 are connected by a pull rope 742, respectively. Through the reverse rotation of the two rotary winches 741, the suspended object assembly 73 can be driven to rotate to adjust the azimuth, and the device is simple in structure and convenient to operate.
In this embodiment, as shown in fig. 2, 4 and 5, the catwalk system 3 includes two sets of load-bearing cables 31, skirting cables 32 and handrail cables 33 respectively located at two sides of the gantry 1, each set of load-bearing cables 31, skirting cables 32 and handrail cables 33 are arranged at intervals from bottom to top, the load-bearing cables 31 are fixed on the main tower 4, the skirting cables 32 and the handrail cables 33 are both fixed on the gantry 1, a load-bearing pad 34 is arranged between the load-bearing cables 31, the hoisting opening 5 is opened on the load-bearing pad 34, and the cover plate 6 is fixed on the load-bearing cables 31 through a buckle 61. The two groups of bearing ropes 31, the skirting ropes 32 and the handrail ropes 33 are respectively positioned on two sides of the portal frame 1, so that construction is more convenient.
In this embodiment, the load bearing mat 34 includes wood ribs 341 spaced along the load bearing cable 31 and a steel wire mesh 342 laid over the wood ribs 341.
In this embodiment, the main tower 4 is provided with the first saddle 41 at the position corresponding to each load-bearing cable 31, the load-bearing cables 31 are fixed on the first saddle 41, the door frame 1 is provided with the second saddle 11 at the position corresponding to each skirting cable 32, the skirting cables 32 are fixed on the second saddle 11, the door frame 1 is provided with the third saddle 12 at the position corresponding to each armrest cable 33, and the armrest cables 33 are fixed on the third saddle 12. The catwalk system 3 has good integrity, convenient on-site layout and stable structure, and can ensure the hoisting space of the hoisting opening 5 so as to fully meet the hoisting requirement of the cable saddle 2.
The construction method of the suspension bridge comprises the following specific steps:
1) And (3) preparation of construction: determining the space positions required by hoisting the hoisting portal 1 and the cable saddle 2 on site, and preparing various construction components meeting the requirements at the space positions of the deflection steel frame 92 of the catwalk system 3;
2) Hoisting a cable saddle 2 and laying a portal 1: a column foot anchor plate 8 is pre-buried at the top of the main tower 4; the portal 1 is provided with an inclined strut, the inclined strut is formed by connecting a plurality of rod piece unit element sections 9 by adopting flanges 91, and the flanges 91 are welded with the rod piece unit element sections 9 after being processed; firstly, installing a vertical rod piece and an inclined strut of a portal frame 1, and welding the vertical rod piece and an embedded column foot anchor plate 8; installing diagonal braces and cross bars in sequence;
3) Catwalk system 3 erection: a rope rotating saddle anchor plate 42 is pre-buried at the top of the main tower 4, a first saddle 41, a second saddle 11 and a third saddle 12 are supported on the inner side of the portal frame 1, steel wire rope strands of the catwalk system 3 are respectively arranged at two sides of the rope saddle 2, a bearing rope 31, a handrail rope 33 and a skirting rope 32 are erected one by one, and the rope strands of the catwalk system 3 are sequentially transited to a normal line shape by utilizing a deflection steel frame 92 at two sides of the longitudinal bridge of the main tower 4; paving a steel wire net 342 and a wood ridge 341 on the erected strands, and binding with iron wires; the hoisting port 5 of the cable saddle 2 is reserved at the midspan side of the main tower 4, a catwalk quick dismounting system is arranged, a clamping and fixing assembly 94 is firstly installed, a channel steel pressing plate 93 is arranged on the bearing cable 31 and is fixedly connected with the bearing cable 31 through a buckle 61, then a transverse spandrel girder 95 is sequentially installed on the clamping and fixing assembly 94, the clamping and fixing assembly 94 is connected with the transverse spandrel girder 95 through a detachable locking device 96, and a steel wire net 342, a wood ridge 341 and auxiliary facilities thereof are installed on a platform framework.
4) Hoisting a cable saddle 2: utilize catwalk system 3 to lay hoist and mount mouth 5, demolish locking device 96, move catwalk surface course and horizontal spandrel girder 95 wholly to the steelframe 92 top that shifts, install the hoisting device 7 of saddle 2, at first weld lug 97 to the top of hanger plate 723, penetrate hanger assembly 73 on the hanger plate 723, install hoist and mount couple 732 in hanger assembly 73 bottom, lug 97 is connected with hoist rope 722 through hoist cable 98, be connected with hoist and mount couple 732 with saddle 2 through hoist and mount line 99, start lift hoist 721, vertically lift saddle 2 to slightly higher than the design position, and start running gear 71, carry out saddle 2 accurate positioning through rotary driving mechanism 74. The construction method of the suspension bridge solves the problem that the lifting of the cable saddle 2 conflicts with the erection procedure of the catwalk system 3; the construction process that the catwalk system 3 is erected first and then the cable saddle 2 is hoisted is adopted, so that influence factors of the processing and manufacturing construction period of the cable saddle 2 are greatly reduced.
Embodiment two:
fig. 2 and 6 show a lifting device 7 according to the present invention, which comprises a travelling mechanism 71 provided on a gantry 1, a lifting mechanism 72 provided on the travelling mechanism 71, and a rotatable suspended object assembly 73 provided on the lifting mechanism 72, wherein the lifting mechanism 72 is provided with a rotation driving mechanism 74 for driving the suspended object assembly 73 to rotate. The lifting mechanism 72 can lift the cable saddle 2 to realize lifting of the cable saddle 2, the traveling mechanism 71 can drive the lifting mechanism 72 to translate to realize translational motion of the cable saddle 2, and the rotary driving mechanism 74 can adjust the azimuth of the cable saddle 2 to realize accurate positioning of the cable saddle 2. The lifting device 7 has lifting, translation and rotation functions, and the cable saddle 2 is lifted by the lifting device 7, so that the position can be accurately and flexibly adjusted during lifting according to the installation position of the cable saddle 2, and the quick positioning is achieved.
In the present embodiment, the lifting mechanism 72 includes a lifting winch 721, a lifting rope 722, and a lifting plate 723, the lifting winch 721 is provided on the traveling mechanism 71, the lifting plate 723 is connected to the lifting winch 721 through the lifting rope 722, and the hoist assembly 73 and the rotation driving mechanism 74 are provided on the lifting plate 723. The cable saddle 2 is hung on the hanging plate 723, and the lifting winch 721 lifts with the hanging plate 723 and the cable saddle 2 by the hanging rope 722, so that the structure is simple and the operation is convenient.
In this embodiment, the rotary driving mechanism 74 includes two rotary winches 741 disposed on both sides of the suspending board 723, and wire members 731 are disposed on both sides of the suspended object assembly 73, respectively, and the two rotary winches 741 and the two wire members 731 are connected by a pull rope 742, respectively. Through the reverse rotation of the two rotary winches 741, the suspended object assembly 73 can be driven to rotate to adjust the azimuth, and the device is simple in structure and convenient to operate.
While the invention has been described in terms of preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.
Claims (4)
1. A construction method of a suspension bridge is characterized in that: the method comprises the following steps:
s1: and (3) preparation of construction: determining the space position required by hoisting the portal (1) and the cable saddle (2) and the space position of the catwalk system (3);
s2: the portal (1) is arranged: the portal frame (1) is arranged at the top of the main tower (4);
s3: erecting a catwalk system (3): a catwalk system (3) is arranged at the top of the main tower (4), the catwalk system (3) is penetrated into the portal (1), a hoisting opening (5) is reserved in front of or behind the main tower (4) in the catwalk system (3), and a cover plate (6) is detachably covered on the hoisting opening (5);
s4: hoisting a cable saddle (2): the cover plate (6) is removed, a translatable hoisting device (7) is arranged at the top of the portal frame (1), and the hoisting devices (7) hoist and position the cable saddle (2) one by one through the hoisting opening (5); the lifting device (7) comprises a travelling mechanism (71) arranged on the portal (1), a lifting mechanism (72) arranged on the travelling mechanism (71) and a lifting object assembly (73) which is arranged on the lifting mechanism (72) and can rotate, wherein a rotary driving mechanism (74) for driving the lifting object assembly (73) to rotate is arranged on the lifting mechanism (72), in the step S4, when the cable saddle (2) is lifted, the cable saddle (2) is firstly hung on the lifting object assembly (73), then the cable saddle (2) is lifted through the lifting mechanism (72), after the cable saddle (2) passes through the lifting opening (5), the travelling mechanism (71) carries the cable saddle (2) to translate to enable the cable saddle (2) to be displaced to an installation position, and then the rotary driving mechanism (74) is used for driving the lifting object assembly (73) to rotate so as to adjust the direction of the cable saddle (2) until the cable saddle (2) is positioned;
the lifting mechanism (72) comprises a lifting winch (721), a lifting rope (722) and a lifting plate (723), the lifting winch (721) is arranged on the travelling mechanism (71), the lifting plate (723) is connected with the lifting winch (721) through the lifting rope (722), and the lifting assembly (73) and the rotary driving mechanism (74) are arranged on the lifting plate (723);
the rotary driving mechanism (74) comprises two rotary windlass (741) which are respectively arranged at two sides of the hanging plate (723), wiring pieces (731) are respectively arranged at two sides of the hanging assembly (73), and the two rotary windlass (741) and the two wiring pieces (731) are respectively connected through pull ropes (742).
2. The construction method of a suspension bridge according to claim 1, wherein: the catwalk system (3) comprises two groups of bearing ropes (31), skirting ropes (32) and handrail ropes (33) which are respectively arranged on two sides of the portal frame (1), each group of bearing ropes (31), skirting ropes (32) and handrail ropes (33) are arranged at intervals from bottom to top, the bearing ropes (31) are fixed on the main tower (4), the skirting ropes (32) and the handrail ropes (33) are both fixed on the portal frame (1), bearing pads (34) are arranged between the bearing ropes (31), the lifting opening (5) is formed in the bearing pads (34), and the cover plate (6) is fixed on the bearing ropes (31) through buckles (61).
3. The suspension bridge construction method according to claim 2, wherein: the bearing pad (34) comprises wood ridges (341) which are arranged at intervals along the bearing rope (31) and steel wire meshes (342) paved on the wood ridges (341).
4. The suspension bridge construction method according to claim 2, wherein: the main tower (4) is provided with first saddles (41) at positions corresponding to all bearing ropes (31), the bearing ropes (31) are fixed on the first saddles (41), second saddles (11) are arranged at positions corresponding to all skirting ropes (32) of the door frame (1), the skirting ropes (32) are fixed on the second saddles (11), third saddles (12) are arranged at positions corresponding to all handrail ropes (33) of the door frame (1), and the handrail ropes (33) are fixed on the third saddles (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111064226.4A CN113789725B (en) | 2021-09-10 | 2021-09-10 | Suspension bridge construction method and lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111064226.4A CN113789725B (en) | 2021-09-10 | 2021-09-10 | Suspension bridge construction method and lifting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113789725A CN113789725A (en) | 2021-12-14 |
| CN113789725B true CN113789725B (en) | 2023-07-25 |
Family
ID=79183187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111064226.4A Active CN113789725B (en) | 2021-09-10 | 2021-09-10 | Suspension bridge construction method and lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113789725B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007099522A (en) * | 2006-12-27 | 2007-04-19 | Kitagawa Iron Works Co Ltd | Wiring method for derricking jib crane |
| CN106758767B (en) * | 2016-11-25 | 2018-10-30 | 中铁大桥局集团有限公司 | A kind of suspension bridge segmented cat road and its construction method |
| CN207244454U (en) * | 2017-03-31 | 2018-04-17 | 中交二公局第二工程有限公司 | Superelevation tower main cable saddle Lift-on/Lift-off System |
| CN109098089A (en) * | 2018-08-21 | 2018-12-28 | 中国十七冶集团有限公司 | A kind of suspension bridge column overhead main cable saddle hanging apparatus and construction method |
| CN109612671A (en) * | 2018-12-07 | 2019-04-12 | 长春理工大学 | Large-scale fall arrest device device for adjusting posture and method |
| CN211142832U (en) * | 2019-10-11 | 2020-07-31 | 中交二公局第五工程有限公司 | Suspension bridge catwalk system |
-
2021
- 2021-09-10 CN CN202111064226.4A patent/CN113789725B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113789725A (en) | 2021-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4377506B2 (en) | Bridge erection device and bridge erection method | |
| CN108265628A (en) | One kind rides cable-styled erection crane lifting cable-stayed bridge girder steel and bridge floor board construction method | |
| JP4521024B2 (en) | Reinforcing bar assembly method and reinforcing bar assembly jig for reinforcing structure of high structure | |
| CN111021744A (en) | Curtain wall installation system and application construction method thereof | |
| CN114182647B (en) | Construction method for lifting and turning weak arch | |
| CN108277994B (en) | Method for quickly dismantling safety protection shed of overhead high-speed rail operation line | |
| CN113789725B (en) | Suspension bridge construction method and lifting device | |
| CN110040632A (en) | A kind of segmental hoisting construction method of large span section steel beam | |
| CN216549362U (en) | Assembling and hoisting device for components above foundation pit | |
| CN116062626A (en) | Curtain wall hoisting equipment and hoisting method for crown part of super high-rise building tower | |
| CN216196742U (en) | A wallboard installation device for position is striden to height | |
| CN216196728U (en) | Overhanging type prefabricated stand board sliding installation device | |
| CN211974386U (en) | Curtain wall mounting system | |
| CN211498489U (en) | Mountain area highway bridge bent cap prestressed steel strand stretch-draw construction operation rack | |
| CN112761367A (en) | Overhanging type prefabricated stand plate sliding installation device and construction method thereof | |
| CN114382015A (en) | Construction method for vertical rotation of special-shaped steel main tower of cable-stayed bridge | |
| CN105863280A (en) | Self-elevating unloading platform | |
| CN220264848U (en) | Building internal construction elevator | |
| JP4841171B2 (en) | Rise-up elevator installation method | |
| CN215331380U (en) | Rail type suspension platform | |
| CN217839714U (en) | Adjustable railway pier top hanging fence installation device | |
| CN220267143U (en) | Super high-rise corridor furred ceiling construction structures | |
| CN217051331U (en) | Anchorage top cover plate installation device | |
| CN217756625U (en) | Existing building roof hoist and mount system | |
| CN116025095B (en) | Cable-beam composite long-span cable-support arch shell and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |