CN109338886B - Alignment matching device and alignment matching method for steel box girder segments - Google Patents
Alignment matching device and alignment matching method for steel box girder segments Download PDFInfo
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- CN109338886B CN109338886B CN201811184097.0A CN201811184097A CN109338886B CN 109338886 B CN109338886 B CN 109338886B CN 201811184097 A CN201811184097 A CN 201811184097A CN 109338886 B CN109338886 B CN 109338886B
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- steel box
- box girder
- support
- alignment matching
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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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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an alignment matching device for steel box girder segments and an alignment matching method thereof, which relate to the field of bridge construction.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to an alignment matching device and an alignment matching method for a steel box girder segment.
Background
The steel box girder has the advantages of light dead weight, large bearing capacity and the like, so that the steel box girder is widely used in bridge construction, in the construction process, the common steel box girder has high rigidity, light weight and relatively light weight of hoisting equipment, when the steel box girder is hoisted and installed, the relative vertical displacement difference of the front girder section and the rear girder section is small, the alignment precision requirement of the front girder section and the rear girder section can be met by adopting a traditional welding horse plate mode, and then the front girder section and the rear girder section are welded and connected.
However, along with the continuous development of modern bridge design and construction technology level and the continuous growth of various functional requirements on the bridge, the construction scale of bridge span, width and the like is also relatively larger and larger, the specification and the body weight of the steel box girder which is one of the main structural forms of the large-span cable-stayed bridge girder are continuously increased, so that the weight of the steel box girder is continuously increased, and the weight of lifting equipment for lifting the steel box girder is also larger and heavier, therefore, when the steel box girder construction with the large quantity is lifted and installed, the current beam section to be installed and the installed beam section have larger relative vertical displacement difference in the transverse bridge direction, if the traditional mode of welding a large quantity of horse plates to adjust the displacement difference is adopted, the steel bridge panel is more damaged, and the matching precision of the front beam section and the rear beam section is difficult to adjust.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the alignment matching device for the steel box girder segments, which can finish alignment matching of the steel box girder segments and improve the matching precision.
In order to achieve the above purpose, the invention adopts the following technical scheme: an alignment matching device for steel box girder segments, the alignment matching device being disposed between adjacent steel box girder segments, comprising:
a compression support secured to the steel box girder segment;
one end of the tension support piece is fixed on the adjacent steel box girder segment, the other end of the tension support piece is bent towards the compression support piece to form a protruding part, and the protruding part is positioned above the compression support piece;
the pushing device is arranged between the protruding part and the pressed supporting piece.
On the basis of the technical scheme, the compression support comprises a support panel.
On the basis of the technical scheme, the first supporting rib is arranged in the pressed supporting piece.
On the basis of the technical scheme, the tension supporting piece comprises two supporting wing plates and a supporting web plate for connecting the two supporting wing plates.
On the basis of the technical scheme, the bending part of the tension support piece is provided with stiffening ribs.
On the basis of the technical scheme, the convex part is provided with a second supporting rib.
On the basis of the technical scheme, the buffer block positioned between the protruding part and the pressed supporting piece is arranged on the protruding part.
On the basis of the technical scheme, the compression supporting piece and the tension supporting piece are welded on adjacent steel box girder sections respectively.
On the basis of the technical scheme, the pushing device is a jack.
The invention also provides a steel box girder segment alignment matching method adopting the alignment matching device, which comprises the following steps:
s1, respectively fixing a compression support piece and a tension support piece on two adjacent steel box girder sections, and arranging a pushing device between the compression support piece and the tension support piece to enable the pushing device to be propped against the compression support piece and the protruding part;
s2, controlling the pushing device to lift the protruding part to align and match two adjacent steel box girder sections, and welding the two adjacent steel box girder sections;
and S3, repeating the steps S1-S2 to finish the connection of the sections of the multi-section steel box girder.
Compared with the prior art, the invention has the advantages that:
(1) The aligning and matching device for the steel box girder segments can finish the adjustment of the front and rear Liang Duanjian matching displacement when the cable-stayed bridge steel box girders are installed, avoid the traditional mode of welding a large number of horse plates, avoid the damage to steel bridge panels caused by welding a large number of Ma Banshi, and gradually enable the front and rear girder segments to be aligned and matched through the pushing device, so that the aligning and matching device has better matching precision.
Drawings
FIG. 1 is a schematic diagram of an installation structure of an alignment matching device in an embodiment of the present invention;
FIG. 2 is a side view of an alignment matching device according to an embodiment of the present invention;
FIG. 3 is a top view of a compression support in accordance with an embodiment of the present invention;
fig. 4 is a bottom view of the protrusion portion in the embodiment of the present invention.
In the figure: the support comprises a 1-compression support piece, a 2-tension support piece, a 21-protruding part, a 22-buffer block, a 3-pushing device, a 4-support panel, a 5-first support rib, a 6-support wing plate, a 7-support web plate, an 8-stiffening rib and a 9-second support rib.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 to 2, the embodiment of the invention provides an alignment matching device for steel box girder segments, which comprises a compression support 1, a tension support 2 and a pushing device 3, wherein the compression support 1 is fixed on an adjacent steel box girder segment, one end of the tension support 2 is fixed on the adjacent steel box girder segment, the other end of the tension support 2 is bent towards the compression support 1 to form a protruding part 21, the protruding part 21 is positioned above the compression support 1, the pushing device 3 is arranged between the protruding part 21 and the compression support 1, preferably, the pushing device 3 is a jack, when the alignment matching operation between the connected steel box girder segments is performed, the compression support 1 and the tension support 2 are respectively fixed on the adjacent steel box girder segments, and the pushing device 3 is arranged between the protruding part 21 formed by bending the tension support 2 and the compression support 1, and acts on the protruding part 21 and the compression support 1 through the pushing device 3, so that the adjacent steel box girder segment is driven to move towards the steel box girder segment, thereby the displacement of the adjacent steel box girder segment is completed, the displacement of a front-to-back girder segment is avoided by adopting a conventional displacement matching method when the steel box girder segment Liang Duanjian is mounted, and the alignment matching device can be performed, and the alignment matching device can be realized by adopting a large amount of the steel box girder 3535 and the alignment matching device.
Referring to fig. 1 to 3, the pressure-receiving support member 1 includes a support panel 4, and when the pushing device 3 is placed between the pressure-receiving support member 1 and the protruding portion 21, the pushing device 3 is supported by the support panel 4, so as to ensure that the pushing device 3 can smoothly complete the subsequent pushing operation; be equipped with first supporting rib 5 in the pressurized support piece 1, through the first supporting rib 5 that sets up, can improve the bearing capacity of this pressurized support piece 1 to guarantee that this pressurized support piece 1 can not appear damaging the condition because bearing capacity is lower when pushing device 3 acts on, avoid leading to pushing device 3 direct action to the steel case girder segment on when the pressurized support piece 1 damages, thereby lead to the damage of steel case girder segment.
Referring to fig. 1, 2 and 4, the tension support member 2 includes two support wing plates 6 and a support web 7 connecting the two support wing plates 6, so that the protrusion 21 formed by bending the tension support member 2 forms a structure similar to i-steel, and thus, when the pushing device 3 acts on the protrusion 21, the protrusion 21 can have a larger bearing capacity; the second supporting rib 9 is arranged on the protruding portion 21, the pressure bearing capacity of the protruding portion 21 can be further increased by arranging the second supporting rib 9 at the protruding portion 21, deformation of the protruding portion 21 is avoided when the pushing device 3 acts on the protruding portion 21, meanwhile, a buffer block 22 located between the protruding portion 21 and the pressed supporting piece 1 is arranged on the protruding portion 21, the output end of the pushing device 3 can be abutted against the buffer block 22 to form a buffer structure, the pushing device 3 is prevented from directly acting on the protruding portion 21 to cause damage to the protruding portion 21, anti-skidding lines are arranged on the buffer block 22, a certain limiting effect can be achieved, and the pushing device 3 is prevented from sliding out of a space between the protruding portion 21 and the pressed supporting piece 1 due to small friction force in the pushing process; the bending part of the tension support member 2 is provided with the stiffening rib 8, and the strength of the bending part of the tension support member 2 can be improved by arranging the stiffening rib 8 at the bending part of the tension support member 2, so that the situation that the bending part is bent due to large acting force when the pushing device 3 acts on the protruding part 21 is avoided, and the alignment matching device cannot achieve the expected alignment effect of the steel box girder segments.
Referring to fig. 1 to 3, the compression support member 1 and the tension support member 2 are welded to adjacent steel box girder segments respectively, and when the alignment matching device is arranged on the steel box girder segments, the compression support member 1 and the tension support member 2 are welded to the web of the steel box girder segments in a welding manner, and after the alignment matching device completes the alignment operation, the alignment matching device can be conveniently removed.
The embodiment of the invention also provides a steel box girder segment alignment matching method adopting the alignment matching device, which comprises the following steps:
s1, respectively fixing a compression support 1 and a tension support 2 on two adjacent steel box girder sections, and arranging a pushing device 3 between the compression support 1 and the tension support 2 to enable the pushing device 3 to be propped against the compression support 1 and the protruding part 21;
s2, controlling the pushing device 3 to lift the protruding part 21 to align and match two adjacent steel box girder sections, and welding the two adjacent steel box girder sections;
and S3, repeating the steps S1-S2 to finish the connection of the sections of the multi-section steel box girder.
By the alignment matching method, alignment matching connection of the sections of the multi-section steel box girder can be gradually completed, good matching precision is guaranteed between the sections of the connected adjacent steel box girders, damage to steel bridge panels caused by a traditional mode of welding a large number of horse plates can be avoided, namely, the steel box girders are damaged, slow pushing operation is performed through the pushing device, welding is performed after the sections of the front steel box girder and the rear steel box girder are matched, and the matching precision of the sections of the adjacent steel box girders is greatly improved.
The invention is not limited to the above-mentioned best mode, any person can obtain other various products under the teaching of the invention, but any change in shape or structure is within the scope of protection of the invention, and all the technical schemes are the same or similar to the invention.
Claims (10)
1. An alignment matching device for steel box girder segments, the alignment matching device being disposed between adjacent steel box girder segments, comprising:
a compression support (1), the compression support (1) being fixed to a steel box girder segment;
one end of the tension support member (2) is fixed on the adjacent steel box girder section, the other end of the tension support member (2) is bent towards the compression support member (1) to form a protruding part (21), and the protruding part (21) is positioned above the compression support member (1);
the pushing device (3) is arranged between the protruding part (21) and the pressed supporting piece (1).
2. An alignment matching device for steel box girder segments as claimed in claim 1, wherein: the compression support (1) comprises a support panel (4).
3. An alignment matching device for steel box girder segments as claimed in claim 1, wherein: a first supporting rib (5) is arranged in the pressed supporting piece (1).
4. An alignment matching device for steel box girder segments as claimed in claim 1, wherein: the tension support (2) comprises two support wings (6) and a support web (7) connecting the two support wings (6).
5. An alignment matching device for steel box girder segments as claimed in claim 1, wherein: stiffening ribs (8) are arranged at the bending part of the tension support piece (2).
6. An alignment matching device for steel box girder segments as claimed in claim 1, wherein: the convex part (21) is provided with a second supporting rib (9).
7. An alignment matching device for steel box girder segments as claimed in claim 1, wherein: the bulge (21) is provided with a buffer block (22) positioned between the bulge (21) and the compression support (1).
8. An alignment matching device for steel box girder segments as claimed in claim 1, wherein: the compression support (1) and the tension support (2) are welded on adjacent steel box girder sections respectively.
9. An alignment matching device for steel box girder segments as claimed in claim 1, wherein: the pushing device (3) is a jack.
10. A steel box girder segment alignment matching method using the alignment matching device as claimed in claim 1, comprising the steps of:
s1, respectively fixing a compression support (1) and a tension support (2) on two adjacent steel box girder sections, and arranging a pushing device (3) between the compression support (1) and the tension support (2) to enable the pushing device (3) to be propped against the compression support (1) and the protruding part (21);
s2, controlling the pushing device (3) to lift the protruding part (21) to align and match two adjacent steel box girder sections, and welding the two adjacent steel box girder sections;
and S3, repeating the steps S1-S2 to finish the connection of the sections of the multi-section steel box girder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811184097.0A CN109338886B (en) | 2018-10-11 | 2018-10-11 | Alignment matching device and alignment matching method for steel box girder segments |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811184097.0A CN109338886B (en) | 2018-10-11 | 2018-10-11 | Alignment matching device and alignment matching method for steel box girder segments |
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| Publication Number | Publication Date |
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| CN109338886A CN109338886A (en) | 2019-02-15 |
| CN109338886B true CN109338886B (en) | 2023-09-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110886190A (en) * | 2019-12-10 | 2020-03-17 | 武船重型工程股份有限公司 | Port roof pressure adjusting device and steel box girder cable-stayed bridge |
| CN111893891A (en) * | 2020-07-27 | 2020-11-06 | 中交路桥建设有限公司 | Steel box girder installation method and steel box girder adjusting system |
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| KR200316029Y1 (en) * | 2002-09-04 | 2003-06-12 | 최병렬 | installation system in one united body for prefabrication upper part of bridge using lifting system with push pull mechanism |
| CN101200878A (en) * | 2007-12-28 | 2008-06-18 | 中铁四局集团第五工程有限公司 | Continuous girder frusta top segment precisely locating apparatus and precisely locating construction technique thereof |
| KR101725086B1 (en) * | 2015-11-17 | 2017-04-11 | 한국도로공사 | Steel girder using through bridge girder segment for rapid bridge replacement |
| CN107841957A (en) * | 2017-12-25 | 2018-03-27 | 中铁二局第五工程有限公司 | A kind of large-tonnage steel box beam thrustor, pushing tow system and pushing method |
| CN209211280U (en) * | 2018-10-11 | 2019-08-06 | 中铁大桥勘测设计院集团有限公司 | A kind of contraposition coalignment for steel box girder segment |
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2018
- 2018-10-11 CN CN201811184097.0A patent/CN109338886B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200316029Y1 (en) * | 2002-09-04 | 2003-06-12 | 최병렬 | installation system in one united body for prefabrication upper part of bridge using lifting system with push pull mechanism |
| CN101200878A (en) * | 2007-12-28 | 2008-06-18 | 中铁四局集团第五工程有限公司 | Continuous girder frusta top segment precisely locating apparatus and precisely locating construction technique thereof |
| KR101725086B1 (en) * | 2015-11-17 | 2017-04-11 | 한국도로공사 | Steel girder using through bridge girder segment for rapid bridge replacement |
| CN107841957A (en) * | 2017-12-25 | 2018-03-27 | 中铁二局第五工程有限公司 | A kind of large-tonnage steel box beam thrustor, pushing tow system and pushing method |
| CN209211280U (en) * | 2018-10-11 | 2019-08-06 | 中铁大桥勘测设计院集团有限公司 | A kind of contraposition coalignment for steel box girder segment |
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