CN114214976B - Concrete bridge flange dismantling construction method and cantilever device - Google Patents
Concrete bridge flange dismantling construction method and cantilever device Download PDFInfo
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- CN114214976B CN114214976B CN202210100012.6A CN202210100012A CN114214976B CN 114214976 B CN114214976 B CN 114214976B CN 202210100012 A CN202210100012 A CN 202210100012A CN 114214976 B CN114214976 B CN 114214976B
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- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention provides a concrete bridge flange dismantling construction method and a cantilever device, comprising the following steps: s1, punching through holes in the flange plate and determining cutting lines; s2, arranging first stress pieces on the cross beams at two sides of the flange plate; s3, clamping a lifting mechanism on the first stressed piece, and enabling an anchor bolt to penetrate through the through hole to connect the lifting mechanism with the flange plate in a positioning manner; and S4, cutting along the cutting line. According to the construction method for the concrete bridge flange dismantling cantilever device, the first stress piece is arranged on the cross beam, the lifting mechanism is clamped and arranged to enter the first stress piece, local stress of the cross beam can be prevented from being damaged, meanwhile, the through holes are reserved in advance, the anchoring bolts penetrate through the through holes to connect the lifting mechanism with the flange plate in a positioning mode, the dismantling implementation stability is improved, and safety accidents such as sliding and falling in a cutting-off process or a hoisting process are avoided.
Description
Technical Field
The invention relates to the technical field of flange dismantling construction methods and overhanging devices, in particular to a concrete bridge flange dismantling construction method and an overhanging device.
Background
With the rapid development of traffic industry in recent years, the requirements on the traffic capacity of bridges are higher and higher, and old bridges which do not meet the traffic flow requirements face dismantling reconstruction. The demolition methods commonly adopted at present are blasting demolition and static cutting demolition, but the conditions of blasting demolition are not provided on the water area with navigation requirements, and static cutting demolition is mostly adopted. Static force cutting and dismantling means that a beam body is decomposed into blocks by a cutting machine, and then a crane or a gantry crane is used for hoisting.
The traditional dismantling method is that a scaffold is erected around the flange plate, then the bridge pier is bound, and finally the flange plate is dismantled by using a cutting hoisting method, but safety accidents such as slipping and falling easily occur to workers in the dismantling method in the cutting process and the hoisting process, and the potential safety hazard is large.
Disclosure of Invention
The present invention is directed to solving the above-described problems. An object of the present invention is to provide a concrete bridge flange dismantling construction method and a cantilever device that solve the above problems.
The construction method of the concrete bridge flange dismantling cantilever device comprises the following steps: comprising the following steps:
s1, punching through holes in the flange plate and determining cutting lines;
s2, arranging first stress pieces on the cross beams at two sides of the flange plate;
s3, clamping a lifting mechanism on the first stressed piece, and enabling an anchor bolt to penetrate through the through hole to connect the lifting mechanism with the flange plate in a positioning manner;
and S4, cutting along the cutting line.
According to the construction method for the concrete bridge flange dismantling cantilever device, the first stress piece is arranged on the cross beam, the lifting mechanism is clamped and arranged to enter the first stress piece, local stress of the cross beam can be prevented from being damaged, meanwhile, the through holes are reserved in advance, the anchoring bolts penetrate through the through holes to connect the lifting mechanism with the flange plate in a positioning mode, the dismantling implementation stability is improved, and safety accidents such as sliding and falling in a cutting-off process or a hoisting process are avoided.
Preferably, disposing the first stress member on the cross beams on both sides of the flange plate in step S2 includes: two rows of square timber are connected into a whole by adopting a tie bolt, then a bamboo plywood is erected above the square timber, and the square timber is glued by using strong glue. The existing bridge is mostly cut and dismantled by static force on a navigation water area, the bridge is integrated into zero, and the bridge is hoisted and dismantled in blocks after being cut, but the dismantling operation space of the bridge adjacent to the existing bridge, resident areas and the like is limited, and the installation time of large-scale hoisting and moving equipment is longer, the installation cost is higher, the construction period is increased, and a large amount of manpower and material resources are consumed. According to the construction method for the concrete bridge flange dismantling cantilever device, two rows of square timber are connected into a whole by adopting the tie bolts, then the bamboo plywood is erected above the square timber, and the concrete bridge flange dismantling cantilever device is glued by using strong glue, so that any adverse effect on an original structure can be avoided, a lap joint construction operation platform support is not needed, and the problem that the bridge is limited in construction operation space due to cross-domain river, adjacent existing lines and the like is solved.
Preferably, the construction method further comprises: lifting lugs at the bottom side of the lifting mechanism are fixedly connected with the flange plate through steel ropes. According to the construction method for the concrete bridge flange dismantling cantilever device, the lifting lug at the bottom side of the lifting mechanism is fixedly connected with the flange plate through the steel rope, so that the stability of the lifting process can be improved, and the flange plate is prevented from sliding off and falling off in the lifting process.
Preferably, the construction method further comprises: and a second stress piece is also erected between the two first stress pieces, clamped at the bottom side of the overhanging device and fixedly arranged at the top side of the flange plate. According to the construction method of the concrete bridge flange dismantling cantilever device, the second stress piece is additionally arranged, so that stability of cutting and hoisting processes can be improved, and the phenomenon that the flange plate slides and falls in a cutting process or a hoisting process is avoided.
The utility model provides a concrete bridge edge of a wing demolishs device of encorbelmenting, the concrete bridge edge of a wing demolishs the device of encorbelmenting includes hoisting mechanism and first atress spare, and hoisting mechanism includes long steel sheet, arc, lug, and long steel sheet card is established in two first atress spare tops, and arc an organic whole sets up in long steel sheet top, and the lug evenly sets up in the arc inboard, and has seted up the fixed orifices on long steel sheet, and the fixed orifices sets up between two first atress spare. The cantilever device is dismantled to this application concrete bridge edge of a wing establishes two crossbeam tops sides to establish hoisting mechanism through the card on the first stress piece, pass hoisting mechanism and flange plate location connection with anchor bolt through the through-hole, can conveniently to the cutting and the hoist and mount of flange plate, avoid the crossbeam local atress to receive the destruction, simultaneously, increased demolishs implementation stability, avoid cutting off process or hoist and mount process to appear landing and fall etc. incident.
Preferably, the concrete bridge flange removing cantilever device further comprises: the second stress piece is arranged between the two first stress pieces and is clamped at the bottom side of the lifting mechanism. The cantilever device is demolishd to this application concrete bridge edge of a wing through addding the second atress spare, can improve cutting and hoist and mount process stability, avoids cutting off process or hoist and mount process to appear the flange board landing and drop.
Preferably, the concrete bridge flange dismantling cantilever device further comprises a sliding groove, a sliding plate and clamping plates, wherein the sliding groove is transversely fixedly arranged on two sides of the long steel plate, one end of the sliding plate is arranged in the sliding plate in a sliding mode, the other end of the sliding plate is hinged to the clamping plates, and the bottom ends of the clamping plates are clamped on the bottom sides of the flange plates. According to the concrete bridge flange dismantling cantilever device, the sliding groove and the sliding plate are additionally arranged, one end of the sliding plate is arranged in the sliding plate in a sliding mode, the other end of the sliding plate is hinged to the clamping plate, the bottom end of the clamping plate is clamped at the bottom side of the flange plate, the clamping plate can be adjusted to be at the fixed position of the flange plate, and safety accidents such as sliding and falling in the cutting-off process or the hoisting process are avoided.
Preferably, the concrete bridge flange dismantling cantilever device further comprises a structural plate and a high-strength spring, wherein the structural plate is arranged on the top side and the bottom side of the chute in parallel, and the high-strength spring is arranged between the structural plate and the chute. The cantilever device is demolishd to this application concrete bridge edge of a wing can be according to flange plate thickness through addding high-strength spring, and the adaptability is fixed the flange plate through the cardboard, simultaneously, reduces the vibration of hoist and mount in-process, improves the stability of hoist and mount.
The concrete bridge flange dismantling construction method and the cantilever device have the following technical effects:
1. the concrete bridge flange dismantling construction method and the cantilever device are adopted; a through hole is formed in the flange plate, and a cutting line is determined; the beams on two sides of the flange plate are provided with first stress pieces; a lifting mechanism is clamped on the first stress piece, and an anchoring bolt penetrates through the through hole to connect the lifting mechanism with the flange plate in a positioning way; cutting along the cutting line, and finally hoisting. According to the construction method for the concrete bridge flange dismantling cantilever device, the first stress piece is arranged on the cross beam, the lifting mechanism is clamped and arranged to enter the first stress piece, local stress of the cross beam can be prevented from being damaged, meanwhile, the through holes are reserved in advance, the anchoring bolts penetrate through the through holes to connect the lifting mechanism with the flange plate in a positioning mode, the dismantling implementation stability is improved, and safety accidents such as sliding and falling in a cutting-off process or a hoisting process are avoided.
2. The concrete bridge flange dismantling construction method and the cantilever device are convenient to transport and install, can be quickly installed on site, and can be quickly installed and put into use; and each component can be obtained locally on site.
3. The construction method for dismantling the concrete bridge flange and the cantilever device stress piece and the hoisting mechanism can be circularly and circularly used, so that a large amount of materials are saved, and the method is economical and practical.
Other characteristic features and advantages of the invention will become apparent from the following description of exemplary embodiments, which is to be read with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to identify like elements. The drawings, which are included in the description, illustrate some, but not all embodiments of the invention. Other figures can be derived from these figures by one of ordinary skill in the art without undue effort.
FIG. 1 is a schematic view showing a construction of a concrete bridge flange removing cantilever device of the present invention;
FIG. 2 is an enlarged view of the concrete bridge flange removal cantilever apparatus A of the present invention;
FIG. 3 is an enlarged view of a concrete bridge flange removal cantilever device B of the present invention;
in the figure: 100. flange plates; 101. a through hole; 102. cutting lines; 103. a cross beam; 104. an anchor bolt; 200. square timber; 201. a bamboo plywood; 300. a wire rope; 10. a lifting mechanism; 20. a first force-bearing member; 11. a long steel plate; 12. an arc-shaped plate; 13. lifting lugs; 111. a fixing hole; 21. a second force-bearing member; 30. a chute; 31. a slide plate; 32. a clamping plate; 33. a structural panel; 34. high-strength spring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.
The concrete bridge flange dismantling construction method and the cantilever device are described in detail below with reference to the accompanying drawings and the embodiments.
Example 1
As shown in fig. 1 to 3, an object of the present invention is to provide a concrete bridge flange dismantling construction method and a cantilever device.
Example 1
The construction method of the concrete bridge flange dismantling cantilever device comprises the following steps: comprising the following steps:
step S1, a through hole 101 is drilled on a flange plate 100, and a cutting line 102 is determined;
step S2, arranging first stress pieces 20 on the cross beams 103 on two sides of the flange plate 100;
step S3, clamping a lifting mechanism 10 on the first stressed piece 20, and positioning and connecting the lifting mechanism 10 with the flange plate 100 by using an anchor bolt 104 to pass through the through hole 101;
step S4, cutting is performed along the cutting line 102.
According to the construction method of the concrete bridge flange dismantling cantilever device, the first stress piece 20 is arranged on the cross beam 103, the lifting mechanism 10 is clamped into the first stress piece 20, local stress of the cross beam 103 can be prevented from being damaged, meanwhile, the through hole 101 is reserved in advance, the lifting mechanism 10 is connected with the flange plate 100 in a positioning mode by penetrating the through hole 101 through the anchor bolt 104, dismantling implementation stability is improved, and safety accidents such as sliding and falling in a cutting-off process or a hoisting process are avoided.
Wherein, during the hoist and mount, first atress spare 20 and hoisting mechanism 10 separation can improve hoist and mount process stability, reduces the load.
Example 2
In a preferred embodiment, disposing the first force-receiving members 20 on the beams 103 on both sides of the flange plate 100 at step S2 includes:
two rows of square timber 200 are connected into a whole by adopting a tie bolt, and then a bamboo plywood 201 is erected above the square timber 200, and is glued by using strong glue.
The existing bridge is mostly cut and dismantled by static force on a navigation water area, the bridge is integrated into zero, and the bridge is hoisted and dismantled in blocks after being cut, but the dismantling operation space of the bridge adjacent to the existing bridge, resident areas and the like is limited, and the installation time of large-scale hoisting and moving equipment is longer, the installation cost is higher, the construction period is increased, and a large amount of manpower and material resources are consumed. According to the construction method for the concrete bridge flange dismantling cantilever device, two rows of square timber 200 are connected into a whole by adopting the tie bolts, the bamboo plywood 201 is erected above the square timber 200, and is glued by using strong glue, so that any adverse effect on an original structure can be avoided, a construction operation platform bracket is not required, and the problem that the construction operation space of a bridge is limited due to cross-domain river, adjacent existing lines and the like is solved.
Example 3
In another preferred embodiment, the construction method further comprises:
the lifting lug 13 on the bottom side of the lifting mechanism 10 is fixedly connected with the flange plate 100 through a steel rope 300.
According to the construction method of the concrete bridge flange dismantling cantilever device, the lifting lug 13 at the bottom side of the lifting mechanism 10 is fixedly connected with the flange plate 100 through the steel cable 300, so that the stability of the lifting process can be improved, and the flange plate is prevented from sliding off and falling in the lifting process.
Example 4
In yet another preferred embodiment, the construction method further comprises: a second stress piece 21 is further erected between the two first stress pieces 20, and the second stress piece 21 is clamped at the bottom side of the overhanging device and is fixedly arranged at the top side of the flange plate 100.
According to the construction method of the concrete bridge flange dismantling cantilever device, the second stress piece 21 is additionally arranged, so that stability in cutting and hoisting processes can be improved, and the phenomenon that the flange plate slides and falls in cutting or hoisting processes is avoided.
The utility model provides a concrete bridge edge of a wing demolishs cantilever device, concrete bridge edge of a wing demolishs cantilever device includes hoisting mechanism 10 and first atress spare 20, hoisting mechanism 10 includes long steel sheet 11, arc 12, lug 13, and long steel sheet 11 card is established in two first atress spare 20 top sides, and arc 12 an organic whole sets up in long steel sheet 11 top side, and lug 13 evenly sets up in arc 12 inboard, and has seted up fixed orifices 111 on long steel sheet 11, and fixed orifices 111 set up between two first atress spare 20.
The cantilever device is dismantled to this application concrete bridge edge of a wing establishes two crossbeams 103 topside to establish hoist mechanism 10 through the card on the first atress spare 20, pass hoist mechanism 10 with anchor bolt 104 through-hole 101 and be connected with flange plate 100 location, can conveniently to the cutting and the hoist and mount of flange plate 100, avoid crossbeam 103 local atress to suffer to destroy, simultaneously, increased demolishs implementation stability, avoid cutting off process or hoist and mount process to appear landing and drop etc. incident.
Example 5
When in actual use, the concrete bridge flange dismantling cantilever device further comprises: the second stress members 21 are disposed between the two first stress members 20 and are clamped at the bottom side of the lifting mechanism 10.
The cantilever device is demolishd to this application concrete bridge edge of a wing through addding second atress spare 21, can improve cutting and hoist and mount process stability, avoids cutting off process or hoist and mount process to appear the flange board landing and drop.
Example 6
In a preferred embodiment, the concrete bridge flange dismantling cantilever device further comprises a sliding groove 30, a sliding plate 31 and clamping plates 32, wherein the sliding groove 30 is transversely fixedly arranged on two sides of the long steel plate 11, one end of the sliding plate 31 is arranged in the sliding plate 31 in a sliding mode, the other end of the sliding plate 31 is hinged to the clamping plates 32, and the bottom ends of the clamping plates 32 are clamped on the bottom sides of the flange plates 100.
Wherein, this device of encorbelmenting is demolishd to concrete bridge edge of a wing through addding spout 30, slide 31 one end slip setting in slide 31, and the slide 31 other end articulates the setting with cardboard 32, and cardboard 32 bottom card is established in flange 100 downside, can adjust cardboard 32 at flange 100 fixed position, avoids cutting off the incident such as landing and drop appear in process or the hoist and mount process.
Example 7
In another preferred embodiment, the concrete bridge flange removing cantilever device further comprises a structural plate 33, and high-strength springs 34, wherein the structural plate 33 is arranged on the top side and the bottom side of the chute 30 in parallel, and the high-strength springs 34 are arranged between the structural plate 33 and the chute 30.
The cantilever device is demolishd to this application concrete bridge edge of a wing can be according to flange 100 thickness through addding high-strength spring 34, and the adaptability is fixed flange 100 through cardboard 32, simultaneously, reduces the vibration of hoist and mount in-process, improves the stability of hoist and mount.
The concrete bridge flange dismantling construction method and the cantilever device work principle are as follows:
in operation, through holes 101 are drilled in the flange plate 100, and cutting lines 102 are determined; the first stress pieces 20 are arranged on the cross beams 103 on two sides of the flange plate 100; a lifting mechanism 10 is clamped on the first stress piece 20, and an anchor bolt 104 penetrates through the through hole 101 to connect the lifting mechanism 10 with the flange plate 100 in a positioning way; cut along cut line 102 and finally hoisted. According to the construction method for the concrete bridge flange dismantling cantilever device, the first stress piece 20 is arranged on the cross beam 103, the lifting mechanism 10 is clamped into the first stress piece 20, local stress of the cross beam 103 can be prevented from being damaged, meanwhile, the through hole 101 is reserved in advance, the lifting mechanism 10 is connected with the flange plate 100 in a positioning mode by penetrating the through hole 101 through the anchor bolt 104, dismantling implementation stability is improved, and safety accidents such as sliding and falling in a cutting-off process or a hoisting process are avoided.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in an article or apparatus that comprises the element.
The above embodiments are only for illustrating the technical scheme of the present invention, not for limiting the same, and the present invention is described in detail with reference to the preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the present invention is intended to be covered by the scope of the appended claims.
Claims (5)
1. The construction method of the concrete bridge flange dismantling cantilever device is characterized by comprising the following steps of: comprising the following steps:
s1, punching a through hole (101) on a flange plate (100), and determining a cutting line (102);
s2, arranging first stress pieces (20) on the cross beams (103) on two sides of the flange plate (100);
s3, clamping a lifting mechanism (10) on the first stress piece (20), and enabling an anchor bolt (104) to penetrate through the through hole (101) to connect the lifting mechanism (10) with the flange plate (100) in a positioning mode;
s4, cutting along a cutting line (102);
step S2 of arranging first stress pieces (20) on the cross beams (103) on two sides of the flange plate (100) comprises the following steps:
firstly, two rows of square timber (200) are connected into a whole by adopting a tie bolt, then a bamboo plywood (201) is erected above the square timber, and the square timber is glued by using strong glue;
the construction method of the concrete bridge flange dismantling cantilever device further comprises the following steps:
lifting lugs (13) at the bottom side of the lifting mechanism (10) are fixedly connected with the flange plate (100) through steel ropes (300);
the construction method of the concrete bridge flange dismantling cantilever device further comprises the following steps:
a second stress piece (21) is further erected between the two first stress pieces (20), and the second stress piece (21) is clamped at the bottom side of the overhanging device.
2. The utility model provides a concrete bridge flange demolishs device of encorbelmenting, its characterized in that, concrete bridge flange demolishs the device of encorbelmenting includes hoisting mechanism (10) and first atress spare (20), hoisting mechanism (10) are including long steel sheet (11), arc (12), lug (13), long steel sheet (11) card is established two first atress spare (20) top side, arc (12) an organic whole sets up long steel sheet (11) top side, lug (13) evenly set up arc (12) inboard, and set up fixed orifices (111) on long steel sheet (11), fixed orifices (111) set up two between first atress spare (20).
3. The concrete bridge flange removal cantilever apparatus of claim 2, wherein the concrete bridge flange removal cantilever apparatus further comprises:
the second stress piece (21) is arranged between the two first stress pieces (20), is clamped at the bottom side of the lifting mechanism (10) and is fixedly arranged at the top side of the flange plate (100).
4. The concrete bridge flange dismantling cantilever device according to claim 2, further comprising a chute (30), a sliding plate (31) and clamping plates (32), wherein the chute (30) is transversely fixedly arranged on two sides of the long steel plate (11), one end of the sliding plate (31) is slidably arranged in the sliding plate (31), the other end of the sliding plate (31) is hinged with the clamping plates (32), and the bottom ends of the clamping plates (32) are clamped on the bottom sides of the flange plates (100).
5. The concrete bridge flange removal cantilever device according to claim 4, further comprising a structural plate (33), a high-strength spring (34), wherein the structural plate (33) is arranged in parallel on the top side and the bottom side of the chute (30), and the high-strength spring (34) is arranged between the structural plate (33) and the chute (30).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210100012.6A CN114214976B (en) | 2022-01-27 | 2022-01-27 | Concrete bridge flange dismantling construction method and cantilever device |
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| CN202210100012.6A CN114214976B (en) | 2022-01-27 | 2022-01-27 | Concrete bridge flange dismantling construction method and cantilever device |
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| CN114214976B true CN114214976B (en) | 2023-07-07 |
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| CN103343512B (en) * | 2013-07-03 | 2015-10-28 | 上海市机械施工集团有限公司 | The method for dismounting of big cross section concrete box girder and hanging apparatus |
| JP7020978B2 (en) * | 2018-03-29 | 2022-02-16 | 株式会社Ｉｈｉインフラシステム | How to remove the floor slab of synthetic girders |
| CN110172929A (en) * | 2019-06-18 | 2019-08-27 | 中交二公局第二工程有限公司 | A kind of concrete box beam flange plate cutting disassembling stabilising arrangement and cutting disassembling method |
| CN110777683B (en) * | 2019-10-28 | 2024-06-21 | 中交路桥建设有限公司 | Device for dismantling peripheral structure of box girder and construction method thereof |
| CN211228177U (en) * | 2019-11-08 | 2020-08-11 | 中铁二局集团有限公司 | Slurry splashing prevention device used during bridge flange plate dismantling |
| CN213681757U (en) * | 2020-09-27 | 2021-07-13 | 中国建筑一局(集团)有限公司 | Wet seam construction equipment of bridge |
| CN113089510A (en) * | 2021-04-14 | 2021-07-09 | 四川省交通建设集团股份有限公司 | Method for dismantling reinforced concrete continuous box girder overpass bridge |
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