CN111877160B - Telescopic semi-automatic movable transverse connection device and construction method thereof - Google Patents
Telescopic semi-automatic movable transverse connection device and construction method thereof Download PDFInfo
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- CN111877160B CN111877160B CN202010504142.7A CN202010504142A CN111877160B CN 111877160 B CN111877160 B CN 111877160B CN 202010504142 A CN202010504142 A CN 202010504142A CN 111877160 B CN111877160 B CN 111877160B
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- movable cross
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- 238000010276 construction Methods 0.000 title claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a telescopic semi-automatic movable transverse connection device, which comprises a rotary driving piece, a hinged hydraulic jack, a movable transverse connection and a fixed buckle, wherein the rotary driving piece is connected with the movable transverse connection; the rotary driving piece is hung on the profile steel combined truss right above the tower platform, the bottom of the rotary driving piece is connected with a fixed section of the hinged hydraulic jack, one end of the fixed section of the hinged hydraulic jack is hinged on the platform of the tower, and a first lug plate with a hole is arranged at the end part of the telescopic end of the hinged hydraulic jack; the movable cross-linked is sleeved with a sleeve in a sliding manner, a second lug plate is arranged on the sleeve, and the sleeve is hinged with the telescopic end of the hinged hydraulic jack in a manner of connecting the second lug plate with the first lug plate; one end of the movable cross joint is arranged on the upright post at the inner side of the tower frame through a hinged support; the other end of the movable cross joint is provided with a fixed buckle, and the fixed buckle comprises a fastening buckle seat and a fixed buckle seat. The invention can provide movable transverse connection, thereby being convenient for hoisting heavy objects and meeting the requirement of the overall stability of the tower.
Description
Technical Field
The invention relates to the technical field of integral hoisting construction of arch segments in arch bridge construction, in particular to a telescopic semi-automatic movable transverse connection device and a construction method thereof.
Background
In the arch bridge construction process, the temporary tower is a very common construction temporary structure, and is mainly used for hoisting heavy objects in the construction process. To improve the dimensional stability of the tower, it is often necessary to provide a transverse link. The common transverse connection is usually fixed, so that the trafficability characteristic is very poor when the heavy object is hoisted, and the construction progress and the construction safety are affected. Therefore, it is important to provide a movable transverse connection which can meet the requirement of the overall stability of the tower and the trafficability of the hoisting weight.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a retractable semi-automatic mobile transverse linkage device and method of construction thereof to provide mobile transverse linkage to facilitate lifting of weights while meeting overall stability requirements of the tower.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
A telescopic semi-automatic movable transverse connection device comprises a rotary driving piece, a hinged hydraulic jack, a movable transverse connection and a fixed buckle; the rotary driving piece is hung on a profile steel combined truss right above the tower platform, the bottom of the rotary driving piece is connected with a fixed section of the hinged hydraulic jack, one end of the fixed section of the hinged hydraulic jack is hinged on the platform of the tower, the connecting part of the hinged hydraulic jack and the rotary driving piece is opposite to the telescopic end of the hinged hydraulic jack, the hinged hydraulic jack rotates around the one end of the fixed section of the hinged hydraulic jack under the action of the rotary driving piece, and a first lug plate with a hole is arranged at the end part of the telescopic end of the hinged hydraulic jack; the movable cross-linked is sleeved with a sleeve in a sliding manner, a second lug plate is arranged on the sleeve, and the sleeve is hinged with the telescopic end of the hinged hydraulic jack in a mode of connecting the second lug plate with the first lug plate; one end of the movable cross joint is arranged on an upright post at the inner side of the tower through a hinged support, and the hinged support is positioned right above the hinged hydraulic jack and at one side of the telescopic end of the hinged hydraulic jack, which is stretched when the telescopic end is at the maximum retraction amount; the fixed buckle comprises a fastening buckle seat and a fixed buckle seat, wherein the fastening buckle seat is arranged on the movable cross joint, two ends of the fastening buckle seat in the radial direction of the movable cross joint are positioned on two opposite sides of the movable cross joint, the two ends are provided with a plurality of round holes, the fixed buckle seat is positioned on another tower column, the other tower column is opposite to the tower column where the hinged support is positioned, a bolt hole corresponding to the round hole is formed in the fixed buckle seat, the fixed buckle seat is opposite to the fastening buckle seat when the movable cross joint is driven to a horizontal position by the hinged hydraulic jack and the rotation driving piece, at the moment, the through hole of the fixed buckle seat is opposite to the bolt hole of the fastening buckle seat, and the fixed buckle seat and the fastening buckle seat are connected with each other through the bolt serial bolt hole and the round hole.
Preferably, the rotation driving piece is a chain block, a tower crane or a ship crane.
Preferably, the bottom of the rotary driving piece is connected with the lifting hole of the hinged hydraulic jack in a hooking way through a lifting hook.
Preferably, the movable cross-section is of a telescopic structure, the fixed section of the movable cross-section is connected with the hinged support, the sleeve is arranged, and the telescopic section of the movable cross-section is provided with the fastening buckle seat.
Preferably, the movable cross-linked is of a double-layer hollow steel pipe structure.
Preferably, the first and second ear panels are hinged by a high strength bolt.
Preferably, the fixing buckle seat and the fastening buckle seat are fixed in a welding mode after being connected.
Preferably, the round hole is formed in the fastening buckle seat when the fastening buckle seat is abutted against the fixed buckle seat.
Based on the above, the invention provides a construction method of a telescopic semi-automatic movable transverse connection device, which comprises the following steps:
(1) A hinged support is arranged on an upright post at the inner side of the tower, a fixed buckling seat is arranged on the upright post opposite to the upright post, and a movable cross link is fixed on the upright post through the hinged support;
(2) A hinged hydraulic jack is arranged on a platform of the tower, and the telescopic end of the hinged hydraulic jack is positioned at one side of the hinged support;
(3) A sleeve is arranged on the movable cross joint, and a second lug plate on the sleeve is connected with a first lug plate on the hinged hydraulic jack through a high-strength bolt;
(4) A rotary driving part is arranged on the section steel combined truss right above the platform, and a lifting hook of the rotary driving part hooks a lifting hole of the hinged hydraulic jack;
(5) When the elevation of the bottom of the hoisting arch section is higher than that of the movable cross-linked hinged support, loading a hinged hydraulic jack, pushing the movable cross-linked to rotate by the hinged hydraulic jack, and stopping loading after the telescopic travel of the hinged hydraulic jack reaches a preset value;
(6) Operating the rotary driving piece, pulling up the hinged hydraulic jack and driving the movable cross-linked to rotate to a horizontal position;
(7) Extending the movable cross joint until a fastening buckle seat at one end of the movable cross joint reaches a fixed buckle seat, aligning the fastening buckle seat with a bolt hole on the fixed buckle seat, forming a round hole opposite to the bolt hole in an aligned manner, and simultaneously inserting a bolt into the round hole and the bolt hole to fix the fastening buckle seat and the fixed buckle seat; and finally, fully welding the contact parts of the bolt fastening seat and the fixed fastening seat of the movable cross joint to be firmly welded.
Compared with the prior art, the invention has the following beneficial effects:
1. The transverse connection device designed by the invention is used for lapping the transverse connection of the portal tower frames, is particularly suitable for the hoisting construction process of the arch sections of the steel pipe arch bridge, can timely build the transverse connection between the tower frames after the lifting of the arch sections, and improves the overall stability of the tower frames; meanwhile, the device has simple structure, can rotate the movable cross-section in different modes, and has higher accuracy.
2. The transverse connection device and the construction method thereof have the advantages of low cost, short construction period and easy operation, are less influenced by site factors, and have better popularization.
Drawings
Fig. 1 is a schematic diagram of the initial state of the device.
Fig. 2 is a schematic view of the device after the hinged hydraulic jack is loaded.
Fig. 3 is a schematic view of the device after the hoisting is completed.
Fig. 4 is a schematic view of the sleeve and first ear plate when hinged.
FIG. 5 is a schematic view of the mating of the fastening buckle and the bolting buckle.
FIG. 6 is a schematic diagram of the operation of the device.
Description of the main reference signs
In the figure: the hydraulic jack comprises a hinged hydraulic jack 1, a rotary driving piece 2, a movable cross-piece 3, a hinged support 4, a sleeve 5, a first lug plate 6, a high-strength bolt 7, a fastening buckle seat 8, a fixed buckle seat 9 and a second lug plate 10.
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
Referring to fig. 1 to 6, in a preferred embodiment of the present invention, a retractable semi-automatic movable lateral contact device includes a rotary driving member 2, a hinged hydraulic jack 1, a movable lateral link 3 and a fixed buckle. The rotary driving piece 2 is hung on a profile steel combined truss right above the tower platform, the bottom of the rotary driving piece is connected with a fixed section of the hinged hydraulic jack 1, one end of the fixed section of the hinged hydraulic jack 1 is hinged on the platform of the tower, the other end of the fixed section is opposite to the telescopic end of the hinged hydraulic jack 1, which is far away from the connecting part of the hinged hydraulic jack 1 and the rotary driving piece 2, the hinged hydraulic jack 1 rotates around the one end of the fixed section of the hinged hydraulic jack 1 under the action of the rotary driving piece 2, in the embodiment, the rotary driving piece 2 is a chain block, a tower crane or a ship crane, and preferably, the bottom of the rotary driving piece 2 is connected with a lifting hole on the hinged hydraulic jack 1 in a hooking manner through a lifting hook. the end part of the telescopic end of the hinged hydraulic jack 1 is provided with a first lug plate 6 with a hole; the movable cross-over 3 is sleeved with a sleeve 5 in a sliding manner, a second lug plate 10 is arranged on the sleeve 5, the sleeve 5 is hinged with the telescopic end of the hinged hydraulic jack 1 in a mode that the second lug plate 10 is connected with the first lug plate 6, and preferably, the first lug plate 6 and the second lug plate 10 are hinged through a high-strength bolt 7; one end of the movable cross-over connection 3 is arranged on an upright post at the inner side of the tower through a hinged support 4, and the hinged support 4 is positioned right above the hinged hydraulic jack 1 and is positioned at one side of the telescopic end of the hinged hydraulic jack 1, which is stretched when the telescopic end is at the maximum retraction amount; The other end of the movable cross-link 3 is provided with a fixed buckle, the fixed buckle comprises a fastening buckle seat 8 and a fixed buckle seat 9, the fastening buckle seat 8 is arranged on the movable cross-link 3, two ends of the fastening buckle seat along the radial direction of the movable cross-link 3 are positioned on two opposite sides of the movable cross-link 3, the two ends are provided with a plurality of round holes, the fixed buckle seat 9 is positioned on another tower column opposite to the tower column where the hinged support 4 is positioned, the fixed buckle seat 9 is provided with a bolt hole corresponding to the round hole, the fixed buckle seat 9 is opposite to the fastening buckle seat 8 when the movable cross-link 3 is driven to a horizontal position by the hinged hydraulic jack 1 and the rotary driving piece 2, At this time, the through hole of the fixing buckle seat 9 is opposite to the bolt hole of the fastening buckle seat 8, the fixing buckle seat 9 and the fastening buckle seat 8 are connected with each other by connecting the bolt in series with the bolt hole and the round hole, preferably, the fixing buckle seat 9 and the fastening buckle seat 8 are fixed by welding after being connected, thereby improving the fixation firmness of the fixing buckle seat 9 and the fastening buckle seat 8. That is, in the present invention, the movable cross-link 3 is converted from a vertical state to a horizontal state by the hinged hydraulic jack 1 and the rotary driving member 2, thereby realizing the fixation of the cross-link after lifting the weight, ensuring the safe progress of the lifting construction, and enhancing the stability of the tower. Preferably, in order to facilitate the vertical placement and horizontal connection of the movable cross-link 3, in this embodiment, the movable cross-link 3 is of a telescopic structure, a fixed section thereof is connected with the hinge support 4, and the sleeve 5 is installed, and the telescopic section of the movable cross-link 3 is provided with the fastening buckle seat 8, so that the fastening buckle seat 8 can be extended to the position of the fixed buckle seat 9 after the movable cross-link 3 is horizontally under the telescopic action of the movable cross-link 3. Further preferably, the movable cross-over connection 3 is of a double-layer hollow steel pipe structure. In this embodiment, in order to facilitate the alignment of the round hole on the fastening buckle seat 8 with the fixing buckle seat 9, the round hole is opened when the fastening buckle seat 8 is abutted against the fixing buckle seat 9.
Based on the above, the invention provides a construction method of a telescopic semi-automatic movable transverse connection device, which comprises the following steps:
(1) A hinged support 4 is arranged on a column at the inner side of the tower, a fixed buckle seat 9 is arranged on the column opposite to the column, and the movable cross-over 3 is fixed on the column through the hinged support 4;
(2) A hinged hydraulic jack 1 is arranged on a platform of the tower, and the telescopic end of the hinged hydraulic jack 1 is positioned at one side of a hinged support 4;
(3) A sleeve 5 is arranged on the movable cross-piece 3, and a second lug plate 10 on the sleeve 5 is connected with a first lug plate 6 on the hinged hydraulic jack 1 through a high-strength bolt 7;
(4) A rotary driving piece 2 is arranged on a section steel combined truss right above the platform, and a lifting hook of the rotary driving piece 2 hooks a lifting hole on a hinged hydraulic jack 1;
(5) When the elevation of the bottom of the hoisting arch section is higher than that of the hinged support 4 of the movable cross-link 3, loading the hinged hydraulic jack 1, pushing the movable cross-link 3 to rotate by the hinged hydraulic jack 1, and stopping loading after the telescopic stroke of the hinged hydraulic jack 1 reaches a preset value;
(6) Operating the rotary driving piece 2, pulling up the hinged hydraulic jack 1 and driving the movable cross-linked 3 to rotate to a horizontal position;
(7) Extending the movable cross-linked 3 until a fastening buckle seat 8 at one end of the movable cross-linked 3 reaches a fixed buckle seat 9, aligning the fastening buckle seat 8 with a bolt hole on the fixed buckle seat 9, forming a round hole opposite to the bolt hole in alignment, inserting a bolt into the round hole and the bolt hole at the same time, and fixing the fastening buckle seat 8 and the fixed buckle seat 9; finally, the contact parts of the bolt fastening seat and the fixed fastening seat 9 of the movable crosstie 3 are fully welded to be firmly welded.
In the step (5), when the loading of the hinged hydraulic jack 1 is finished, the minimum thrust F s, the stroke S s and the included angle θ p between the transverse link and the vertical direction of the hinged hydraulic jack 1 conform to the following relationship:
Fs＝Gsinθpcosθp，
wherein G is the gravity of the suspender, H is the height difference between the hinged joint of the fixed section of the hinged hydraulic jack 1 and the platform and the hinged support 4, and l is the transverse distance between the hinged joint of the fixed section of the hinged hydraulic jack 1 and the platform and the hinged support 4.
At the end of lifting in the step (6), the minimum thrust force F e of the hinged hydraulic jack 1 and the stroke S e meet the following relationship:
Fs＝Gsinθpcos(θp-θj)，
Ss＝Se，
Wherein, theta j is the rotation angle of the hinged hydraulic jack 1, and the final value of theta j can be obtained by the following formula:
the foregoing description is directed to the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the invention, and all equivalent changes or modifications made under the technical spirit of the present invention should be construed to fall within the scope of the present invention.
Claims (6)
1. A retractable semi-automatic movable transverse contact device, characterized in that: comprises a rotary driving piece, a hinged hydraulic jack, a movable cross-link and a fixed buckle; the rotary driving piece is hung on a profile steel combined truss right above the tower platform, the bottom of the rotary driving piece is connected with a fixed section of the hinged hydraulic jack, one end of the fixed section of the hinged hydraulic jack is hinged on the platform of the tower, the connecting part of the hinged hydraulic jack and the rotary driving piece is opposite to the telescopic end of the hinged hydraulic jack, the hinged hydraulic jack rotates around the one end of the fixed section of the hinged hydraulic jack under the action of the rotary driving piece, and a first lug plate with a hole is arranged at the end part of the telescopic end of the hinged hydraulic jack; the movable cross-linked is sleeved with a sleeve in a sliding manner, a second lug plate is arranged on the sleeve, and the sleeve is hinged with the telescopic end of the hinged hydraulic jack in a mode of connecting the second lug plate with the first lug plate; one end of the movable cross joint is arranged on an upright post at the inner side of the tower through a hinged support, and the hinged support is positioned right above the hinged hydraulic jack and at one side of the telescopic end of the hinged hydraulic jack, which is stretched when the telescopic end is at the maximum retraction amount; the other end of the movable cross joint is provided with a fixed buckle, the fixed buckle comprises a fastening buckle seat and a fixed buckle seat, the fastening buckle seat is arranged on the movable cross joint, two ends of the fastening buckle seat in the radial direction of the movable cross joint are positioned on two opposite sides of the movable cross joint, the two ends of the fastening buckle seat are provided with a plurality of round holes, the fixed buckle seat is positioned on the other tower upright, the other tower upright is opposite to the tower upright where the hinged support is positioned, the fixed buckle seat is provided with a bolt hole corresponding to the round hole, and when the movable cross joint is driven to a horizontal position by a hinged hydraulic jack and a rotation driving piece, the fixed buckle seat is opposite to the fastening buckle seat, at the moment, the through hole of the fixed buckle seat is opposite to the bolt hole of the fastening buckle seat, and the fixing buckle seat and the fastening buckle seat are mutually connected in a bolt serial bolt hole and the round hole mode;
The movable cross joint is of a telescopic structure, a fixed section of the movable cross joint is connected with the hinged support, the sleeve is arranged on the fixed section, and a fastening buckle seat is arranged on the telescopic section of the movable cross joint;
the round hole is formed in the middle of the fastening buckle seat in butt joint and fixing of the buckle seat;
The construction method of the telescopic semi-automatic movable transverse connection device comprises the following steps:
(1) A hinged support is arranged on an upright post at the inner side of the tower, a fixed buckling seat is arranged on the upright post opposite to the upright post, and a movable cross link is fixed on the upright post through the hinged support;
(2) A hinged hydraulic jack is arranged on a platform of the tower, and the telescopic end of the hinged hydraulic jack is positioned at one side of the hinged support;
(3) A sleeve is arranged on the movable cross joint, and a second lug plate on the sleeve is connected with a first lug plate on the hinged hydraulic jack through a high-strength bolt;
(4) A rotary driving part is arranged on the section steel combined truss right above the platform, and a lifting hook of the rotary driving part hooks a lifting hole of the hinged hydraulic jack;
(5) When the elevation of the bottom of the hoisting arch section is higher than that of the movable cross-linked hinged support, loading a hinged hydraulic jack, pushing the movable cross-linked to rotate by the hinged hydraulic jack, and stopping loading after the telescopic travel of the hinged hydraulic jack reaches a preset value;
(6) Operating the rotary driving piece, pulling up the hinged hydraulic jack and driving the movable cross-linked to rotate to a horizontal position;
(7) Extending the movable cross joint until a fastening buckle seat at one end of the movable cross joint reaches a fixed buckle seat, aligning the fastening buckle seat with a bolt hole on the fixed buckle seat, forming a round hole opposite to the bolt hole in an aligned manner, and simultaneously inserting a bolt into the round hole and the bolt hole to fix the fastening buckle seat and the fixed buckle seat; and finally, fully welding the contact parts of the bolt fastening seat and the fixed fastening seat of the movable cross joint to be firmly welded.
2. A retractable semi-automatic mobile transverse contact as recited in claim 1, wherein: the rotation driving piece is a chain block, a tower crane or a ship crane.
3. A retractable semi-automatic mobile transverse contact as recited in claim 1, wherein: the bottom of the rotary driving piece is connected with the lifting hole of the hinged hydraulic jack in a hooking way through a lifting hook.
4. A retractable semi-automatic mobile transverse contact as recited in claim 1, wherein: the movable cross-linked is of a double-layer hollow steel pipe structure.
5. A retractable semi-automatic mobile transverse contact as recited in claim 1, wherein: the first ear plate and the second ear plate are hinged through a high-strength bolt.
6. A retractable semi-automatic mobile transverse contact as recited in claim 1, wherein: the fixed buckling seat and the fastening buckling seat are fixed in a welding mode after being connected.
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| CN202010504142.7A CN111877160B (en) | 2020-06-05 | 2020-06-05 | Telescopic semi-automatic movable transverse connection device and construction method thereof |
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| CN202010504142.7A CN111877160B (en) | 2020-06-05 | 2020-06-05 | Telescopic semi-automatic movable transverse connection device and construction method thereof |
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| CN212358027U (en) * | 2020-06-05 | 2021-01-15 | 广西大学 | A retractable semi-automatic movable lateral contact device |
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| CN101476293B (en) * | 2009-01-16 | 2010-10-27 | 广东省长大公路工程有限公司 | Construction Method of Large Bridge Arch Rib Without Support |
| CN104612061B (en) * | 2015-02-05 | 2016-08-24 | 中铁上海工程局集团第五工程有限公司 | A kind of suspension open type hanging basket device and construction method thereof |
| CN107740351B (en) * | 2017-10-12 | 2019-01-11 | 中交第二航务工程局有限公司 | A kind of more braced arch rib vertical rotating construction methods of large span |
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| CN212358027U (en) * | 2020-06-05 | 2021-01-15 | 广西大学 | A retractable semi-automatic movable lateral contact device |
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