CN110817687A - Reinforced concrete arch bridge arch rib segment hoisting structure - Google Patents
Reinforced concrete arch bridge arch rib segment hoisting structure Download PDFInfo
- Publication number
- CN110817687A CN110817687A CN201911132417.2A CN201911132417A CN110817687A CN 110817687 A CN110817687 A CN 110817687A CN 201911132417 A CN201911132417 A CN 201911132417A CN 110817687 A CN110817687 A CN 110817687A
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- Prior art keywords
- steel
- hoisting
- rib segment
- reinforced concrete
- hole
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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
- B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
- B66C11/04—Underhung trolleys
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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
- 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
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a reinforced concrete arch bridge arch rib segment hoisting structure, wherein hoisting holes are respectively formed in webs on the left side and the right side of an arch rib segment, through grooves are respectively formed in the left end and the right end of a top plate of the arch rib segment, a steel plate is movably inserted in each through groove, a limiting pin is arranged at the top end of each steel plate, a through hole is formed in the bottom end of each steel plate, a steel bar is movably arranged in each hoisting hole in a penetrating mode, the steel bar sequentially penetrates through the hoisting holes and the through holes, limiting devices are respectively arranged at the two ends of the steel bar, and a steel hanging strip for hoisting is arranged between each web and the limiting device located at the outer end of the steel. The hoisting structure for the arch rib sections of the reinforced concrete arch bridge is high in safety and reliability, a large number of embedded parts do not need to be embedded in the arch rib sections, the installation and the removal are convenient, and the construction process is greatly simplified.
Description
Technical Field
The invention belongs to the field of bridge engineering, and particularly relates to a reinforced concrete arch bridge arch rib segment hoisting structure.
Background
Because of the mountains and canyons in China, the arch bridge is widely applied in China, as the design span of the arch bridge is continuously increased, the prefabricated arch rib sections are adopted during construction, the cable crane is used for hoisting construction, lifting of the prefabricated arch rib sections of the reinforced concrete arch bridge cannot be directly welded with lifting lugs for hoisting construction as the prefabricated sections of the steel pipe concrete, the hoisting difficulty is high, steel strands are generally embedded in the arch rib sections in the traditional hoisting of the reinforced concrete sections, meanwhile, a large number of embedded parts are arranged on the arch rib sections, the arch rib sections are born with tensile force through the pretension force of the steel strands and the embedded parts or are directly bound with steel wires for hoisting through certain fixing measures, and as the weight of the arch rib sections of single sections is gradually increased, the following defects exist in the traditional method: 1. the embedded part and the steel strand need to bear pull force of more than hundred tons, and certain stability of the embedded part and the steel strand structure needs to be ensured. 2. The embedded part and the steel strand wires can have the condition of mutual conflict with arch rib segment steel bar, both influence the atress of embedded part and influence the stability of pier shaft, and the difficulty is demolishd in the installation moreover, and unable repeated use of leading need carry out repairing to the pier shaft after the construction, and the construction procedure is numerous and diverse. 3. The steel wire rope is directly used for binding and hoisting, so that the hoisting stability and the angle adjustment accuracy are ensured to be higher. Therefore, the hoisting structure which has reasonable structural design, is simple and convenient to install and dismantle, can be continuously used and cannot cause great influence on the structure of the reinforced concrete arch rib segment is required to be provided for hoisting the reinforced concrete arch rib segment.
Summary of the invention
In view of this, the invention aims to provide a hoisting structure for a reinforced concrete arch bridge arch rib segment, which has the advantages of reasonable structural design, simple and convenient installation and disassembly, sustainable use and no great influence on the structure of the reinforced concrete arch rib segment.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a reinforced concrete encircles bridge arch rib festival section hoisting structure, the hole for hoist has been seted up separately to the web on arch rib festival section left side and right side, and left side web hole for hoist and mount and right side web hole for hoist one-to-one, arch rib festival section is seted up separately and is led to the groove with homonymy web hole for hoist one-to-one in its top left and right-hand member position department, and each is led to the inslot activity cartridge and has been had the steel sheet, and it is just right with its hole for hoist after leading to the groove is worn out to the steel sheet bottom, and the steel sheet top is equipped with moves down spacing spacer pin to this steel sheet, and the steel sheet bottom is equipped with and the just right through-hole of hole for hoist, a rod is worn to be equipped with in the hole for hoist to this rod in order by hole for hoist and through-hole, and.
Further, stop device includes the sleeve to and the screw thread portion that two tip of rod iron set up respectively, and the limit nut that this screw thread portion matches, sleeve activity suit is on the rod iron, and limit nut and sleeve outside terminal surface correspond, the steel suspender sets up between sleeve and web.
Furthermore, a steel pipe is pre-embedded in the steel bar hoisting hole, and the steel bar penetrates out of the steel pipe.
Furthermore, a limiting cushion block is arranged between the steel plate and the corresponding web plate, and the steel bar freely penetrates out of the limiting cushion block.
Furthermore, a rubber gasket is arranged between the web plate and the steel sling.
Furthermore, 5-10mm gaps are respectively reserved between the limiting device and the steel hanging strip and between the limiting device and the steel plate.
Furthermore, the number of the hoisting holes of the left web plate and the right web plate of the arch rib segment is two respectively.
Compared with the prior art, the hoisting structure for the arch rib sections of the reinforced concrete arch bridge has the following advantages:
compared with the prior art, the hoisting structure for the arch rib section of the reinforced concrete arch bridge is clear in stress, high in safety and reliability, free of the need of embedding a large number of embedded parts on the arch rib section, small in influence on the structure of the arch rib section, convenient to install and dismantle, capable of greatly simplifying construction procedures, capable of being used continuously and saving construction cost, and steel pipes are arranged in the positions of web plates of the arch rib section in an embedded mode. Has higher economical efficiency and practicability.
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 invention without limitation. In the drawings:
FIG. 1 is a three-dimensional structure diagram of the left and right web plates for hoisting with a steel sling;
FIG. 2 is a front view of the present embodiment;
fig. 3 is a schematic view of the hoisting structure of the embodiment;
description of reference numerals:
1-a rib segment; 101-a web; 102-a top plate; 2-a steel bar; 3-a steel sling; 4-a steel plate; 5-a limit pin; 6-a limiting device; 601-limit nut; 602-a sleeve; 7-shackle removal; 8-a steel wire rope; 9-crown block lower hanging rack; 10-a crown block; 11-a steel pipe; 12-a limit cushion block; 13-rubber gasket.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
As shown in fig. 3, in a hoisting structure for arch rib segments of a reinforced concrete arch bridge, hoisting holes are respectively formed in webs 101 on the left side and the right side of each arch rib segment 1, and the hoisting holes of the webs on the left side and the hoisting holes of the webs on the right side correspond to each other one by one. The left end and the right end of the top plate 102 of the arch rib segment 1 are respectively provided with a through groove corresponding to the web plate hoisting holes on the same side one by one. In this embodiment, two through grooves have been set up separately in roof 102 left end and right-hand member position department, and two through grooves that each end of roof 102 set up separately with this side web 101 on two hole for hoist one-to-one sets up, guarantee that a hole for hoist matches and have a through groove that this embodiment, lead to the square hole structure of groove for wearing out roof 102 setting. Each logical inslot activity cartridge has steel sheet 4, and it is just right with this logical groove corresponding hoisting hole after roof 102 is worn out downwards to lead to 4 bottoms of the steel sheet that the groove matches, for guaranteeing the dismouting of being convenient for, steel sheet 4 and logical groove leave the clearance all around. The top of the steel plate 4 is provided with a limiting hole, the limiting hole is internally provided with a limiting pin 5 in an interference fit mode, the limiting pin 5 is horizontal and tightly attached to the top surface of the top plate 102, the limiting pin 5 moves downwards the steel plate 4 to limit the position, and the steel plate 4 is hoisted on the top plate 102 through the limiting pin 5. The steel plate 4 bottom is equipped with rather than the just right through-hole of corresponding hole for hoist, a rod iron 2 is worn to be equipped with in the hole for hoist activity, for 1 atress homogeneity of arch rib festival section in improving hoist and mount process, pre-buried steel pipe 11 in the hole for hoist, the steel pipe internal diameter is 3 ~ 5mm bigger than the rod iron diameter, and is the same, the through-hole diameter of steel plate 4 is 3 ~ 5mm bigger than the rod iron diameter, guarantee from this that rod iron 2 penetrates smoothly and can free rotation, be convenient for adjust the installation angle of 1 of arch rib festival section in the hoist and mount process, the rod iron 2 is worn out by the through-hole of steel pipe 11 and steel plate 4 in order, 2 both ends of rod iron are equipped with a stop device 6 separately, reserve 5 ~ 10mm space between steel plate 4 and its stop device 6 that corresponds, guarantee that. The steel bar 2 is provided with a hoisting steel sling 3 between the web plate 101 and the limiting device 6 at the outer end of the steel bar 2. The rod iron 2 realizes that the axial is spacing through the stop device 6 at both ends promptly, prevents that the rod iron from droing, and the dress is worn on its rod iron 2 that corresponds to through the mounting hole of bottom to steel sling 3, and steel sling 3 prevents through the stop device 6 in the outside to drop. In the embodiment, the diameter of the mounting hole of the steel sling 3 is 3-5mm larger than that of the steel rod 2, and gaps of 5-10mm are reserved between the limiting device 6 and the steel sling 3 and between the limiting device 6 and the steel plate 4 respectively, so that the steel rod 2, the steel sling 3 and the steel plate 4 can rotate freely. During hoisting, as shown in fig. 1 and 2, four steel hanging strips 3 are respectively matched with one crown block 10, each steel hanging strip 3 is hung on a crown block lower hanging rack 9 of the corresponding crown block 10 through a steel wire rope 8, and the steel hanging strips 3 and the steel wire rope 8 are connected through shackles 7 for convenient dismounting. Therefore, four-point balance hoisting is completed, and the four crown blocks 10 are driven simultaneously, namely, the hoisting and conveying of the arch rib segment 1 are completed.
In this embodiment, the limiting device 6 includes a sleeve 602, threaded portions respectively provided at two ends of the steel bar 2, and a limiting nut 601 matched with the threaded portions, the sleeve 602 is movably sleeved on the steel bar 2, the limiting nut 601 corresponds to an outer end face of the sleeve 602, and the steel sling is disposed between the sleeve 602 and the web 101. The axial position of the sleeve 602 is adjusted by adjusting the position of the limit nut 601, namely the size of the gap between the sleeve and the steel sling 3 is adjusted, so that the requirements of different hoisting environments are met.
In this embodiment, in order to prevent the occurrence of an eccentric tension condition, a limiting cushion block 12 is arranged between the steel plate 4 and the web plate 101 corresponding to the steel plate, the limiting cushion block 12 is provided with a through hole for the steel rod 2 to penetrate through, the diameter of the through hole is 3-5mm larger than that of the steel rod, and the steel rod 2 freely penetrates through the through hole of the limiting cushion block 12.
In this embodiment, in the hoisting process, in order to prevent the hard contact between the steel sling 3 and the arch rib segment 1, a rubber gasket 13 is arranged between the web and the steel sling 3.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a reinforced concrete arch bridge arch rib segment hoisting structure which characterized in that: the web plates (101) at the left side and the right side of the arch rib segment (1) are respectively provided with a hoisting hole, and the left web plate hoisting holes and the right web plate hoisting holes are in one-to-one correspondence, the left end and the right end of the top plate (102) of the arch rib segment (1) are respectively provided with a through groove in one-to-one correspondence with the web plate hoisting holes on the same side, a steel plate (4) is movably inserted in each through groove, the bottom end of the steel plate (4) is right opposite to the corresponding hoisting hole after penetrating out of the through groove, the top end of the steel plate (4) is provided with a limiting pin (5) for limiting the downward movement of the steel plate, the bottom end of the steel plate (4) is provided with a through hole right opposite to the hoisting hole, this rod iron (2) is worn out by hole for hoist and mount and through-hole in order, and rod iron (2) both ends are equipped with stop device (6) respectively, and rod iron (2) are worn to be equipped with hoist and mount and use steel suspender (3) in position department between web (101) and stop device (6) that are located rod iron (2) outer end.
2. The reinforced concrete arch bridge arch rib segment hoisting structure of claim 1, wherein: stop device (6) are including sleeve (602) to and the screw thread portion that two tip set up respectively of rod iron (2), and limit nut (601) that this screw thread portion matches, sleeve (602) activity suit is on rod iron (2), and limit nut (601) and sleeve (602) outside terminal surface correspond, the steel suspender sets up between sleeve (602) and web (101).
3. A reinforced concrete arch bridge rib segment hoisting structure according to claim 1 or 2, wherein: a steel pipe (11) is embedded in the steel bar hoisting hole, and the steel bar (2) penetrates through the steel pipe (11).
4. A reinforced concrete arch bridge rib segment hoisting structure according to claim 1 or 2, wherein: and a limiting cushion block (12) is arranged between the steel plate (4) and the corresponding web plate (101), and the steel bar (2) freely penetrates out of the limiting cushion block (12).
5. A reinforced concrete arch bridge rib segment hoisting structure according to claim 1 or 2, wherein: and a rubber gasket (13) is arranged between the web plate (101) and the steel hanging strip (3).
6. A reinforced concrete arch bridge rib segment hoisting structure according to claim 1 or 2, wherein: and 5-10mm gaps are respectively reserved between the limiting device (6) and the steel sling (3) and between the limiting device (6) and the steel plate (4).
7. The reinforced concrete arch bridge arch rib segment hoisting structure of claim 1, wherein: the number of the hoisting holes of the left and right webs (101) of the arch rib segment (1) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911132417.2A CN110817687A (en) | 2019-11-19 | 2019-11-19 | Reinforced concrete arch bridge arch rib segment hoisting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911132417.2A CN110817687A (en) | 2019-11-19 | 2019-11-19 | Reinforced concrete arch bridge arch rib segment hoisting structure |
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| CN110817687A true CN110817687A (en) | 2020-02-21 |
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| CN201911132417.2A Pending CN110817687A (en) | 2019-11-19 | 2019-11-19 | Reinforced concrete arch bridge arch rib segment hoisting structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517222A (en) * | 2020-04-24 | 2020-08-11 | 贵州省绿筑科建住宅产业化发展有限公司 | Prefabricated part overturning structure and overturning method |
| CN111608084A (en) * | 2020-05-29 | 2020-09-01 | 中国铁建大桥工程局集团有限公司 | Integral prefabrication and assembly construction method for reinforced concrete arch bridge arch ring segments |
| CN113373816A (en) * | 2021-06-30 | 2021-09-10 | 湖南路桥建设集团有限责任公司 | Construction method for hoisting corrugated steel web segment beam |
-
2019
- 2019-11-19 CN CN201911132417.2A patent/CN110817687A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517222A (en) * | 2020-04-24 | 2020-08-11 | 贵州省绿筑科建住宅产业化发展有限公司 | Prefabricated part overturning structure and overturning method |
| CN111608084A (en) * | 2020-05-29 | 2020-09-01 | 中国铁建大桥工程局集团有限公司 | Integral prefabrication and assembly construction method for reinforced concrete arch bridge arch ring segments |
| CN111608084B (en) * | 2020-05-29 | 2022-03-29 | 中国铁建大桥工程局集团有限公司 | Integral prefabrication and assembly construction method for reinforced concrete arch bridge arch ring segments |
| CN113373816A (en) * | 2021-06-30 | 2021-09-10 | 湖南路桥建设集团有限责任公司 | Construction method for hoisting corrugated steel web segment beam |
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