CN115402929A - Crane for integral hoisting of continuous beam reinforcement cage and hoisting method thereof - Google Patents
Crane for integral hoisting of continuous beam reinforcement cage and hoisting method thereof Download PDFInfo
- Publication number
- CN115402929A CN115402929A CN202211048796.9A CN202211048796A CN115402929A CN 115402929 A CN115402929 A CN 115402929A CN 202211048796 A CN202211048796 A CN 202211048796A CN 115402929 A CN115402929 A CN 115402929A
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- China
- Prior art keywords
- reinforcement cage
- frame
- crane
- hoisting
- steel reinforcement
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Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/10—Undercarriages or bogies, e.g. end carriages, end bogies
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- 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
- E01D21/10—Cantilevered erection
Abstract
The invention discloses a crane for integral hoisting of a continuous beam steel reinforcement cage, which comprises a guide rail arranged along the length direction of a cast beam and a hanger arranged on the guide rail, wherein the hanger comprises a support frame and a widening frame arranged on the support frame, and the width of the widening frame is greater than the widths of the support frame and the steel reinforcement cage. The hoisting method of the crane for integral hoisting of the continuous beam reinforcement cage comprises the following steps: a) The lifting frame drives the reinforcement cage to move along the guide rail, and the lifting frame stops moving after being in place; b) The steel reinforcement cage is lifted upwards to the lowest position, and the height of the steel reinforcement cage exceeds the height of the main cross beam of the hanging basket, and then the steel reinforcement cage is lifted forwards and penetrates through the widening frame to reach the position above the installation position of the steel reinforcement cage; c) And lowering the reinforcement cage to the reinforcement cage mounting position. The steel reinforcement cage hoisting device does not need to rotationally hoist the steel reinforcement cage, has a simple and reliable integral structure and better safety, and can simplify the hoisting process and improve the hoisting efficiency.
Description
Technical Field
The invention relates to the technical field of bridge cantilever pouring construction equipment, in particular to a crane for integral hoisting of a continuous beam steel reinforcement cage and a hoisting method thereof.
Background
The cantilever casting construction is a construction method of symmetrically and balancedly casting a concrete beam body section by section to the midspan by adopting special equipment at two sides along the bridge direction with a bridge pier as the center, and applying prestress section by section. Generally speaking, in the process of pouring the cantilever, the construction period of each standard segment is about 7 working days, wherein the on-site binding and assembling time of the reinforcement cage is about 2 to 3 working days, which is one third of the construction period of each standard segment, and is not beneficial to shortening the pouring period of the continuous beam.
Chinese patent document CN 102174796B discloses a main truss underneath type suspension casting construction hanging basket, which saves the construction space at the upper part of the hanging basket by arranging the main truss below the beam surface, and solves the problem that the whole hoisting of a steel reinforcement cage cannot be realized due to insufficient construction space at the upper part. But the technical scheme does not relate to how to realize integral hoisting of the reinforcement cage. The integral hoisting of the steel reinforcement cage has the following two technical problems: 1) The transverse width of the steel reinforcement cage is basically the same as that of a poured concrete beam (called a poured beam for short), a conventional portal crane is adopted, the support is difficult, the width is limited, the steel reinforcement cage is difficult to pass, if the steel reinforcement cage is rotated by 90 degrees to hoist so that the length direction and the width direction of the steel reinforcement cage are changed, the steel reinforcement cage is reversely rotated by 90 degrees to reset after passing through the crane, the problem that the transverse width of the steel reinforcement cage is basically the same as that of the poured beam is solved, the structure of the crane is complex, great challenges are brought to construction safety, and the hoisting process is complicated; 2) Because C shape arm and rear frame member are located and water the roof beam top, lead to the loop wheel machine can't remove to the steel reinforcement cage and treat the mounted position directly over, for eccentric hoist and mount when hoist and mount steel reinforcement cage to the mounted position, be unfavorable for guaranteeing the balance of loop wheel machine.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides the crane for integrally hoisting the continuous beam reinforcement cage, which has the advantages of simple and reliable structure, good safety and convenient use.
The invention further provides a hoisting method of the crane for integral hoisting of the continuous beam reinforcement cage.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a loop wheel machine for hoisting continuous beam steel reinforcement cage is whole, includes along the guide rail that has watered roof beam length direction and locate the gallows on the guide rail, the gallows includes the support frame and locates the widening frame on the support frame, the width of widening frame is greater than the width of support frame and steel reinforcement cage.
As a further improvement of the above technical solution: the widening frame comprises a plurality of sub frames arranged along the length direction of the poured beam, each sub frame comprises two C-shaped beams with opposite openings, the lower ends of the two C-shaped beams are fixedly connected with the supporting frame, the upper ends of the two C-shaped beams are fixedly connected through transverse connecting beams, and the transverse connecting beams of every two adjacent sub frames are fixedly connected through longitudinal connecting beams.
As a further improvement of the above technical solution: and the longitudinal connecting beams are arranged at two ends of the transverse connecting beams.
As a further improvement of the technical scheme: the front side of the widening frame is provided with an extension frame, and the extension frame is provided with telescopic support legs.
As a further improvement of the above technical solution: and the support frame is provided with a roller matched with the guide rail.
As a further improvement of the technical scheme: the support frame is arranged on the edges of two sides of the poured beam.
As a further improvement of the above technical solution: the lifting frame is characterized by also comprising a driving piece for driving the lifting frame to reciprocate along the guide rail.
A hoisting method of a crane for integral hoisting of a continuous beam reinforcement cage comprises the following steps:
a) The lifting frame drives the reinforcement cage to move along the guide rail, and the lifting frame stops moving after being in place;
b) The steel reinforcement cage is lifted upwards to the lowest position, and the height of the steel reinforcement cage exceeds the height of the main cross beam of the hanging basket, and then the steel reinforcement cage is lifted forwards and penetrates through the widening frame to reach the position above the installation position of the steel reinforcement cage;
c) And lowering the reinforcement cage to the reinforcement cage mounting position.
As a further improvement of the above technical solution:
in the step a), when the hanging bracket moves along the guide rail, the telescopic supporting legs shrink upwards to cross the main cross beam of the hanging basket, and after the hanging bracket is in place, the telescopic supporting legs extend downwards to the front cross beam of the hanging basket.
Compared with the prior art, the invention has the advantages that: the invention discloses a crane for integral hoisting of a continuous beam steel reinforcement cage, wherein a hanging bracket is of a special-shaped structure and comprises a support frame and a widening frame arranged on the support frame, the width of the widening frame is larger than the width of the support frame and the width of the steel reinforcement cage, the steel reinforcement cage is hoisted to the lowest position and exceeds the height of a main cross beam, then the steel reinforcement cage is hoisted forwards and passes through the widening frame to reach the position above the installation position of the steel reinforcement cage, the steel reinforcement cage is not required to be hoisted in a rotating mode, the integral structure is simple and reliable, the safety is better, meanwhile, the hoisting process can be simplified, and the hoisting efficiency is improved. And because the crane is integrally arranged on the bridge floor, the ground space does not need to be occupied, and the procedure of examining and approving the ground is omitted.
The invention discloses a hoisting method of a crane for integral hoisting of a continuous beam steel reinforcement cage.
Drawings
Fig. 1 is a schematic perspective view of a crane for integral hoisting of a continuous beam steel reinforcement cage according to the present invention.
The reference numerals in the figures denote: 1. pouring a beam; 2. a guide rail; 3. a hanger; 31. a support frame; 311. a roller; 32. a widening frame; 33. dividing the frame; 331. a C-shaped beam; 332. a transverse connecting beam; 333. a longitudinal connecting beam; 34. an extension frame; 35. a telescopic leg; 4. a reinforcement cage; 6. hanging a basket; 61. a C-shaped arm; 62. a front cross member.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples of the specification.
Example one
Fig. 1 shows an embodiment of the crane for integral hoisting of the continuous beam steel reinforcement cage of the present invention, the crane for integral hoisting of the continuous beam steel reinforcement cage of the present embodiment includes a guide rail 2 arranged along the length direction of a poured beam 1 and a hanger 3 arranged on the guide rail 2, the hanger 3 includes a support frame 31 and a widening frame 32 arranged on the support frame 31, and the width of the widening frame 32 is greater than the widths of the support frame 31 and the steel reinforcement cage 4.
This embodiment is loop wheel machine for continuous beam steel reinforcement cage integral hoisting, gallows 3 adopts the dysmorphism structure, include support frame 31 and locate the widen frame 32 on the support frame 31, the width of widen frame 32 is greater than support frame 31, steel reinforcement cage 4's width, steel reinforcement cage 4 hoists forward after exceeding the main beam (connecting between the C-shaped arm 61 of hanging 6 both sides) height of hanging 6 basket to the lowest position and hoists and pass widen frame 32 and reach steel reinforcement cage mounted position top, need not to rotate hoist and mount steel reinforcement cage 4, overall structure is simple, reliable, the security is better, the hoist and mount process can be simplified simultaneously, the hoisting efficiency is improved. And because the crane is integrally arranged on the bridge floor, the ground space does not need to be occupied, and the procedure of examining and approving the ground is omitted.
Further, in this embodiment, the widening frame 32 includes a plurality of sub-frames 33 arranged along the length direction of the poured beam 1, the sub-frames 33 include two C-shaped beams 331 with opposite openings, the lower ends of the two C-shaped beams 331 are fixedly connected with the supporting frame 31, the upper ends of the two C-shaped beams 331 are fixedly connected through the transverse connecting beam 332, and the transverse connecting beams 332 of two adjacent sub-frames 33 are fixedly connected through the longitudinal connecting beam 333. The widening frame 32 of this kind of structure overall structure is simple, and intensity is high, and the good reliability, the space between two C type roof beams 331 that the opening is relative can provide the passageway of broad for steel reinforcement cage 4, satisfies under the unchangeable condition of the predetermined direction of steel reinforcement cage 4, carries out integral hoisting to steel reinforcement cage 4.
As a preferred embodiment, the longitudinal connecting beams 333 are respectively disposed at two ends of the transverse connecting beam 332, which is beneficial to further improving the connecting strength between the sub-frames 33 and ensuring the stress balance of the hanger 3.
Further, in this embodiment, an extension frame 34 is disposed on the front side of the widening frame 32 (i.e., the side where the cradle 6 is located, or the side where the next construction section is located), and telescopic legs 35 are disposed on the extension frame 34. When gallows 3 removed along guide rail 2, flexible landing leg 35 upwards contracts to cross the C-arm 61 of hanging basket 6, after gallows 3 took one's place (specifically for support frame 31 reachs the C-arm 61 of hanging basket 6), flexible landing leg 35 stretches out downwards to hanging basket 6 on the front beam 62, make both sides all can obtain the support around the widen frame 32, and then guarantee the stress balance of 4 integral hoisting process gallows 3 of steel reinforcement cage, simple structure, reliable.
As a preferred embodiment, the supporting frame 31 is provided with a roller 311 engaged with the guide rail 2, so that the frictional resistance of the hanger 3 moving along the guide rail 2 can be reduced, and the movement is smoother and more labor-saving.
As a preferred embodiment, the supporting frames 31 are disposed at the edges of the two sides of the poured beam 1, so that the width of the poured beam 1 can be fully utilized, and further, effective support is provided for the widening frame 32, the widening frame 32 has a size as wide as possible, and the reinforcement cage 4 can be conveniently hoisted.
As a preferred embodiment, the crane for hoisting the whole steel reinforcement cage with the continuous beam further comprises a driving element (such as a hydraulic cylinder) for driving the hanger 3 to reciprocate along the guide rail 2, and the driving element is used for providing power to realize the reciprocating movement of the hanger 3 along the guide rail 2, so that the automation degree is high, and the use is more convenient.
Example two
The hoisting method of the crane for integral hoisting of the continuous beam reinforcement cage comprises the following steps:
a) The lifting frame 3 drives the reinforcement cage 4 to move along the guide rail 2, and the lifting frame 3 stops moving after being in place;
b) The reinforcement cage 4 is hoisted upwards until the lowest position of the reinforcement cage 4 exceeds the height of the main beam, and then is hoisted forwards to pass through the widening frame 32 and reach the position above the installation position of the reinforcement cage;
c) And the reinforcement cage 4 is lowered to the installation position of the reinforcement cage.
According to the hoisting method, the reinforcement cage 4 is hoisted upwards to the lowest position of the reinforcement cage 4 and exceeds the height of the main cross beam, then the reinforcement cage is hoisted forwards and penetrates through the widening frame 32 to reach the position above the installation position of the reinforcement cage, the reinforcement cage 4 is hoisted integrally under the condition that the set direction of the reinforcement cage 4 is not changed, and the hoisting method is simple in hoisting process, good in safety and high in efficiency.
Further, in the present embodiment, the first and second electrodes,
step a), when the hanger 3 moves along the guide rail 2, the telescopic legs 35 contract upwards to cross the main beam of the hanging basket 6, and after the hanger 3 is in place, the telescopic legs 35 extend downwards to the front beam 62 of the hanging basket 6, so that the front side and the rear side of the widening frame 32 can be supported, and further the stress balance of the hanger 3 in the integral hoisting process of the reinforcement cage 4 is ensured.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention, unless the technical essence of the present invention departs from the content of the technical solution of the present invention.
Claims (9)
1. The utility model provides a crane for integral hoisting of continuous beam steel reinforcement cage which characterized in that: the steel bar cage pouring device comprises a guide rail (2) arranged along the length direction of a poured beam (1) and a hanging bracket (3) arranged on the guide rail (2), wherein the hanging bracket (3) comprises a support frame (31) and a widening frame (32) arranged on the support frame (31), and the width of the widening frame (32) is larger than the width of the support frame (31) and the width of the steel bar cage (4).
2. The crane for integral hoisting of the continuous beam steel reinforcement cage as claimed in claim 1, wherein: the widening frame (32) comprises a plurality of sub-frames (33) arranged along the length direction of the poured beam (1), each sub-frame (33) comprises two C-shaped beams (331) with opposite openings, the lower ends of the two C-shaped beams (331) are fixedly connected with the supporting frame (31), the upper ends of the two C-shaped beams (331) are fixedly connected through transverse connecting beams (332), and the transverse connecting beams (332) of every two adjacent sub-frames (33) are fixedly connected through longitudinal connecting beams (333).
3. The crane for integral hoisting of the continuous beam steel reinforcement cage as claimed in claim 2, wherein: the longitudinal connecting beams (333) are arranged at two ends of the transverse connecting beam (332).
4. The crane for integral hoisting of the continuous beam steel reinforcement cage according to claim 1, characterized in that: the front side of the widening frame (32) is provided with an extension frame (34), and the extension frame (34) is provided with telescopic supporting legs (35).
5. The crane for integral hoisting of the continuous beam reinforcement cage according to any one of claims 1 to 4, characterized in that: and the support frame (31) is provided with a roller (311) matched with the guide rail (2).
6. The crane for integral hoisting of the continuous beam reinforcement cage according to any one of claims 1 to 4, wherein: the support frame (31) is arranged on the edges of two sides of the poured beam (1).
7. The crane for integral hoisting of the continuous beam reinforcement cage according to any one of claims 1 to 4, characterized in that: the lifting frame is characterized by further comprising a driving piece for driving the lifting frame (3) to move back and forth along the guide rail (2).
8. A hoisting method of a crane for integral hoisting of a continuous beam steel reinforcement cage is characterized by comprising the following steps: the method comprises the following steps:
a) The lifting frame (3) drives the reinforcement cage (4) to move along the guide rail (2), and the lifting frame (3) stops moving after being in place;
b) The reinforcement cage (4) is hoisted upwards to the lowest position exceeding the height of the main beam of the cradle (6), and then is hoisted forwards to pass through the widening frame (32) and reach the position above the installation position of the reinforcement cage;
c) And lowering the reinforcement cage (4) to the installation position of the reinforcement cage.
9. The hoisting method of the crane for integral hoisting of the continuous beam reinforcement cage according to claim 8, characterized in that:
in the step a), when the hanging bracket (3) moves along the guide rail (2), the telescopic supporting legs (35) contract upwards to cross over the main cross beam of the hanging basket (6), and after the hanging bracket (3) is in place, the telescopic supporting legs (35) extend downwards to the front cross beam (62) of the hanging basket (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211048796.9A CN115402929A (en) | 2022-08-30 | 2022-08-30 | Crane for integral hoisting of continuous beam reinforcement cage and hoisting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211048796.9A CN115402929A (en) | 2022-08-30 | 2022-08-30 | Crane for integral hoisting of continuous beam reinforcement cage and hoisting method thereof |
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| Publication Number | Publication Date |
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| CN115402929A true CN115402929A (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211048796.9A Pending CN115402929A (en) | 2022-08-30 | 2022-08-30 | Crane for integral hoisting of continuous beam reinforcement cage and hoisting method thereof |
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2022
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