CN108708293B - Novel steel girder closure longitudinal and vertical displacement adjustment device - Google Patents
Novel steel girder closure longitudinal and vertical displacement adjustment device Download PDFInfo
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- CN108708293B CN108708293B CN201810755380.8A CN201810755380A CN108708293B CN 108708293 B CN108708293 B CN 108708293B CN 201810755380 A CN201810755380 A CN 201810755380A CN 108708293 B CN108708293 B CN 108708293B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 107
- 239000010959 steel Substances 0.000 title claims abstract description 107
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 34
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a novel steel girder closure longitudinal and vertical displacement adjusting device, which comprises a push-pull supporting member group and a pressure-lifting supporting member group, wherein the push-pull supporting member group comprises a web plate, the web plate comprises a first web plate and a second web plate, the second web plate is provided with a first push-pull supporting member body, the tops of steel beams on the left side and the right side are provided with a third web plate with a second push-pull supporting member body, and a first jack is arranged between the second push-pull supporting member body and the first push-pull supporting member body; the jacking supporting member group comprises a fourth web plate with a first jacking supporting member body, a second jack is arranged at the top of the first jacking supporting member body, and a second jacking supporting member body is arranged on the first web plate. The invention can quickly adjust the longitudinal and vertical displacement of the two sides of the closure opening to the allowable precision range, then complete the connection of the steel beams, realize accurate closure, can be applied to the adjustment of the closure opening displacement of various types of steel main beams, and has the advantages of high precision and obvious application effect.
Description
Technical Field
The invention relates to the technical field of girder closure, in particular to a novel steel girder closure longitudinal and vertical displacement adjusting device.
Background
Modern large-span steel truss girder, steel arch bridge, cable-stayed bridge of steel girder etc. adopt more and more, girder steel construction generally all adopts the cantilever to erect to middle closure mouth, and the displacement adjustment to closure state is the very important process of construction erection process, is the biggest cantilever state when erect to closure mouth usually, and the structure atress is least unfavorable, in order to guarantee structural safety, needs to make the girder realize fast closure.
The conventional closure measure mainly comprises the steps of pre-judging closure opening displacement in advance, real matching the dimensions of closure members, adjusting stay cable force or utilizing temperature difference telescopic effect, and the like, but the closure measure has the following defects:
(1) The conventional measures are difficult to quickly and effectively adjust the displacement of the closure opening, and the initial design stress state of the structure is difficult to ensure;
(2) Certain errors exist in the closure process, and therefore, certain differences exist between the bridge forming design line shape of the main beam and the theoretical main beam after closure and the internal force state of the theoretical design.
In view of this, there is an urgent need to improve the existing adjustment structure of the longitudinal and vertical displacement of the closure opening, so as to quickly and effectively adjust the longitudinal and vertical relative displacement of the main beam closure opening to an ideal closure state, and reduce the errors after closure, so as to ensure a good design line shape of the main beam and an ideal structural stress state.
Disclosure of Invention
The invention aims to solve the technical problems that the existing closure longitudinal and vertical displacement adjustment structure is difficult to quickly and effectively adjust closure displacement, the initial design stress state of the structure is difficult to ensure, certain errors exist in the closure process, and the main beam and the theoretical main beam after closure form a bridge to design a line shape and have certain difference in the theoretical design internal force state.
In order to solve the technical problems, the technical scheme adopted by the invention is to provide a novel steel girder closure longitudinal and vertical displacement adjusting device, which comprises:
the push-pull supporting member group comprises webs arranged at the tops of the steel beams at the left side and the right side of the closure mouth, two ends of the webs are respectively detachably arranged with the steel beams at the left side and the steel beams at the right side, the webs comprise a first web arranged horizontally and a second web arranged by extending downwards from two ends of the first web, the two second webs are respectively provided with a first push-pull supporting member body, the tops of the steel beams at the left side and the right side are respectively detachably provided with a third web, the third web is provided with a second push-pull supporting member body, and a first jack is arranged between the second push-pull supporting member body and the two first push-pull supporting member bodies;
the pressure rise supporting member group, including setting up the fourth web at left and right both sides girder steel top, two all be equipped with first pressure rise supporting member body on the fourth web, two the top of first pressure rise supporting member body all can be dismantled and be equipped with the second jack, be equipped with the second pressure rise supporting member body on the first web to dispose to:
the web is connected with the left steel beam, the third web is arranged on the right steel beam, and the second pressure-rise supporting member body is arranged opposite to the first pressure-rise supporting member body arranged on the right steel beam;
the web is connected with the right side girder steel, the third web sets up on the left side girder steel, the second pressure rise supporting member body with set up in the left side girder steel the relative setting of first pressure rise supporting member body.
In the above scheme, the first push-pull support member body comprises first support ribs arranged on two sides of the second web along the horizontal direction and first support backing plates arranged on the inner side of the second web, and the second push-pull support member body comprises second support ribs arranged on two sides of the third web along the horizontal direction and second support backing plates arranged on the tops of two ends of the third web.
In the above scheme, the inside and outside both sides of web all are equipped with first pterygoid lamina, first backing plate sets up on the first pterygoid lamina, the both ends of first support rib respectively with two first pterygoid lamina are connected, the left and right both sides of third web all are equipped with the second pterygoid lamina, two the second backing plate all sets up on the second pterygoid lamina, the both ends of second support rib respectively with two the second pterygoid lamina is connected.
In the above-mentioned scheme, the first pressure-raising support member body includes along vertical direction setting third support rib and the setting of fourth web top are in the third support backing plate at fourth web top, the one end of third support rib with third support backing plate is connected, the second pressure-raising support member body includes along vertical direction setting fourth support rib and the setting of first web bottom are in the fourth support backing plate of first web bottom, the fourth support backing plate sets up on the first pterygoid lamina, the both ends of fourth support rib respectively with two first pterygoid lamina are connected.
In the scheme, the tops of the steel beams at the left side and the right side are respectively provided with the fifth webs, and the third webs are detachably arranged on the two fifth webs respectively.
In the scheme, the third web plate and the fifth web plate are connected through splice plates, and the splice plates are arranged at two ends of the third web plate and the fifth web plate.
In the above scheme, the first jack is arranged on the inner sides of the two first push-pull supporting member bodies or on the two sides of the second push-pull supporting member body.
In the above scheme, a plurality of stiffening ribs are arranged on the web plate.
In the scheme, the two fourth webs are arranged at positions of the left steel beams and the right steel beams, which are close to the closure openings.
Compared with the prior art, the invention adjusts the longitudinal and vertical displacement of the two sides of the closure opening to the allowable precision range through pushing or pulling, lifting or pressing operation, then completes the connection of the steel beams, realizes accurate closure, can be applied to the displacement adjustment of closure openings of various types of steel main beams, has high closure speed, ensures the safety of the structure, and has the advantages of high precision and obvious application effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an assembly view of the present invention with longitudinal displacement pushing two steel beams apart;
FIG. 3 is an assembly drawing of two steel beams drawn together by longitudinal displacement in accordance with the present invention;
FIG. 4 is an assembly view of the present invention with vertical displacement lifting the right side steel beam;
FIG. 5 is an assembly view of the present invention with vertical displacement lifting a left side steel beam;
FIG. 6 is a cross-sectional view taken at A1-A1 of FIG. 1;
FIG. 7 is a cross-sectional view taken at A2-A2 of FIG. 1;
FIG. 8 is a cross-sectional view taken at A3-A3 of FIG. 5;
FIG. 9 is a cross-sectional view taken at B1-B1 of FIG. 1;
FIG. 10 is a cross-sectional view taken at B2-B2 of FIG. 1;
FIG. 11 is a cross-sectional view taken at B3-B3 of FIG. 1;
FIG. 12 is a cross-sectional view taken at C1-C1 of FIG. 1;
FIG. 13 is a cross-sectional view taken at C2-C2 of FIG. 1;
fig. 14 is a cross-sectional view taken at C3-C3 of fig. 1.
Detailed Description
The invention provides a novel steel girder closure longitudinal and vertical displacement adjusting device, which adjusts the longitudinal and vertical displacement of two sides of a closure opening to an allowable precision range through pushing or pulling, lifting or pressing operation, and then completes steel girder connection, thereby realizing accurate closure. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 14, the novel steel girder closure longitudinal and vertical displacement adjusting device provided by the invention comprises a push-pull supporting member group and a pressure-lifting supporting member group.
As shown in fig. 1 and fig. 6 to fig. 14, the push-pull supporting member group comprises a web plate 100 arranged at the tops of the steel beams at the left side and the right side of the closure opening, two ends of the web plate 100 are respectively detachably arranged with the steel beams at the left side and the steel beams at the right side, the web plate 100 comprises a first web plate 110 horizontally arranged and a second web plate 120 downwardly extending from two ends of the first web plate 110, first push-pull supporting member bodies are arranged on the two second web plates 120, third web plates 200 are respectively detachably arranged at the tops of the steel beams at the left side and the right side, second push-pull supporting member bodies are arranged on the third web plates 200, and first jacks 300 are respectively arranged between the second push-pull supporting member bodies and the two first push-pull supporting member bodies.
Specifically, the first push-pull support member body includes first support ribs 121 disposed on both sides of the second web 120 in a horizontal direction and first support pads 122 disposed inside the second web 120, and the second push-pull support member body includes second support ribs 201 disposed on both sides of the third web 200 in a horizontal direction and second support pads 202 disposed on top of both ends of the third web 200. The first support rib 121 and the second support rib 201 can increase the stability of the second web 120 and the third web 200, and simultaneously play a supporting role for pushing, and the first support pad 122 and the second support pad 202 are the pushing force points, so that the first jack 300 is more efficient.
The web 100 is provided with first wing plates 101 on the inner side and the outer side, first support base plates 122 are arranged on the first wing plates 101, two ends of a first support rib 121 are respectively connected with the two first wing plates 101, the left side and the right side of a third web 200 are respectively provided with second wing plates, two second support base plates 202 are respectively arranged on the second wing plates, and two ends of a second support rib 201 are respectively connected with the two second wing plates. The contact area of the first wing plate 101 and the second wing plate can be increased, so that the structure is more stable.
The jacking supporting member group comprises fourth webs 400 arranged at the tops of the left steel beams and the right steel beams, first jacking supporting member bodies are arranged on the two fourth webs 400, second jacks 310 are detachably arranged at the tops of the two first jacking supporting member bodies, and second jacking supporting member bodies are arranged on the first webs 110.
Specifically, the first jacking supporting member body includes a third supporting rib 401 disposed on the fourth web 400 in the vertical direction and a third supporting pad 402 disposed on the top of the fourth web 400, one end of the third supporting rib 401 is connected to the third supporting pad 402, the second jacking supporting member body includes a fourth supporting rib 410 disposed on the first web 110 in the vertical direction and a fourth supporting pad 411 disposed on the bottom of the first web 110, the fourth supporting pad 411 is disposed on the first wing 101, and both ends of the fourth supporting rib 410 are connected to the two first wings 101, respectively.
The third supporting rib 401 and the fourth supporting rib 410 can increase the stability of the fourth web 400 and the first web 110, and simultaneously play a supporting role for pushing, and the third supporting pad 402 and the fourth supporting pad 411 are the pushing acting points, so that the second jack 310 is more efficient.
The application process of the invention is as follows
As shown in fig. 2, left and right steel beams are pushed apart in a longitudinal direction, a second web 120 is connected to the right steel beam, a third web 200 is installed on the left steel beam, and a first jack 300 provided between a first push-pull support member body and a second push-pull support member body on the right side operates to separate the left and right steel beams.
As shown in fig. 3, left and right steel beams are drawn in a longitudinal direction, a second web 120 is connected to the left steel beam, a third web 200 is installed on the left steel beam, and a first jack 300 provided between a first push-pull support member body and a second push-pull support member body on the left works to close the left and right steel beams.
As shown in fig. 4, the right steel beam is lifted in the vertical direction, the second web 120 is connected with the right steel beam, the third web 200 is installed on the left steel beam, the second pressure-raising support member body is disposed opposite to the first pressure-raising support member body disposed on the left steel beam, and the second jack 310 on the left steel beam operates to lift the right steel beam opposite to the left steel beam.
As shown in fig. 5, the right steel beam is pressed down in the vertical direction, the second web 120 is connected with the left steel beam, the third web 200 is installed on the right steel beam, the second jacking supporting member body is disposed opposite to the first jacking supporting member body disposed on the right steel beam, and the second jack 310 on the right steel beam works to press down the right steel beam opposite to the left steel beam.
According to the invention, through pushing or pulling, lifting or pressing operation, the longitudinal and vertical displacement of the two sides of the closure opening is adjusted to the allowable precision range, then the steel beam connection is completed, the accurate closure is realized, the invention can be applied to the displacement adjustment of closure openings of various types of steel main beams, the closure speed is high, the safety of the structure is ensured, and meanwhile, the invention has the advantages of high precision and remarkable application effect.
Further preferably, the top of the left steel beam and the top of the right steel beam are respectively provided with a fifth web 500, and the third webs 200 are respectively detachably arranged on the two fifth webs 500. The third web 200 and the fifth web 500 are connected through the splice plates 510, the splice plates 520 are arranged at the two ends of the third web 200 and the fifth web 500, the splice plates 520 are connected at the two ends of the third web 200 and the fifth web 500 in a splice plate 510 connection mode, the bottoms of the splice plates 520 can extend to the steel beams at the left side and the right side, the stability of the structure is improved, and construction is safer.
In the present invention, the first jack 300 may be disposed in multiple ways, and may be disposed on the inner sides of two first push-pull support member bodies or on two sides of a second push-pull support member body, and specific embodiments are as follows:
example 1
One of the first jacks 300 is disposed inside the left side first push-pull support member body, and the other first jack 300 is disposed on the right side of the second push-pull support member body.
Example two
One of the first jacks 300 is disposed inside the right side first push-pull support member body, and the other first jack 300 is disposed on the left side of the second push-pull support member body.
Example III
Two first jacks 300 are respectively provided at both sides of the second push-pull support member body.
Example IV
The two first jacks 300 are respectively disposed inside the two first push-pull support member bodies.
Can be selected according to different construction conditions, and meets the requirements of various construction modes.
Further preferably, the web 100 is provided with a plurality of stiffening ribs 600 to increase the stability of the web 100 and prevent the web 100 from destabilizing during use.
Further preferably, the two fourth webs 400 are arranged at the positions of the steel beams on the left side and the right side, which are close to the closure openings, so that the second jack 310 can exert the best use effect according to the lever principle.
The present invention is not limited to the above-mentioned preferred embodiments, and any person who can learn the structural changes made under the teaching of the present invention can fall within the scope of the present invention if the present invention has the same or similar technical solutions.
Claims (9)
1. Novel steel girder closure is indulged vertical displacement and is adjusted device, its characterized in that includes:
the push-pull supporting member group comprises webs arranged at the tops of the steel beams at the left side and the right side of the closure mouth, two ends of the webs are respectively detachably arranged with the steel beams at the left side and the steel beams at the right side, the webs comprise a first web arranged horizontally and a second web arranged by extending downwards from two ends of the first web, the two second webs are respectively provided with a first push-pull supporting member body, the tops of the steel beams at the left side and the right side are respectively detachably provided with a third web, the third web is provided with a second push-pull supporting member body, and a first jack is arranged between the second push-pull supporting member body and the two first push-pull supporting member bodies;
the pressure rise supporting member group, including setting up the fourth web at left and right both sides girder steel top, two all be equipped with first pressure rise supporting member body on the fourth web, two the top of first pressure rise supporting member body all can be dismantled and be equipped with the second jack, be equipped with the second pressure rise supporting member body on the first web to dispose to:
the web is connected with the left steel beam, the third web is arranged on the right steel beam, the second pressure-rise supporting member body is arranged opposite to the first pressure-rise supporting member body arranged on the right steel beam, and a first jack arranged between the first push-pull supporting member body and the second push-pull supporting member body on the right side works to separate the left steel beam from the right steel beam;
the web is connected with the right steel beam, the third web is arranged on the left steel beam, the second pressure-rise supporting member body is arranged opposite to the first pressure-rise supporting member body arranged on the left steel beam, and a first jack arranged between the first push-pull supporting member body and the second push-pull supporting member body on the left works to seal the left steel beam and the right steel beam;
the second web is connected with the right steel beam, the third web is arranged on the left steel beam, the second pressure-rise supporting member body is arranged opposite to the first pressure-rise supporting member body arranged on the left steel beam, and the second jack on the left steel beam works to enable the right steel beam to be lifted relative to the left steel beam;
the second web is connected with the left side girder steel, and the third web is installed on the right side girder steel, and the second pressure rise supporting member body sets up with the first pressure rise supporting member body that sets up at the right side girder steel relatively, and the second jack work on the right side girder steel makes the girder steel of the relative left side of girder steel of right side push down.
2. The novel steel main beam closure longitudinal and vertical displacement adjustment device according to claim 1, wherein the first push-pull supporting member body comprises first supporting ribs arranged on two sides of the second web along the horizontal direction and first supporting base plates arranged on the inner side of the second web, and the second push-pull supporting member body comprises second supporting ribs arranged on two sides of the third web along the horizontal direction and second supporting base plates arranged on the tops of two ends of the third web.
3. The novel steel girder closure vertical displacement adjustment device according to claim 2, wherein first wing plates are arranged on the inner side and the outer side of the web plate, the first support base plate is arranged on the first wing plates, two ends of the first support rib are respectively connected with two first wing plates, second wing plates are arranged on the left side and the right side of the third web plate, two second support base plates are arranged on the second wing plates, and two ends of the second support rib are respectively connected with two second wing plates.
4. The novel steel main girder closure longitudinal and vertical displacement adjustment device according to claim 3, wherein the first lifting support member body comprises a third support rib arranged on the fourth web plate along the vertical direction and a third support pad arranged at the top of the fourth web plate, one end of the third support rib is connected with the third support pad, the second lifting support member body comprises a fourth support rib arranged on the first web plate along the vertical direction and a fourth support pad arranged at the bottom of the first web plate, the fourth support pad is arranged on the first wing plate, and two ends of the fourth support rib are respectively connected with the two first wing plates.
5. The novel steel girder closure longitudinal and vertical displacement adjustment device according to claim 1, wherein fifth webs are arranged at the tops of the steel girders on the left side and the right side, and the third webs are detachably arranged on the two fifth webs respectively.
6. The novel steel main beam closure longitudinal and vertical displacement adjustment device according to claim 5, wherein the third web plate and the fifth web plate are connected through splice plates, and the splice plates are arranged at two ends of the third web plate and the fifth web plate.
7. The novel steel main beam closure longitudinal and vertical displacement adjustment device according to claim 1, wherein the first jacks are arranged on the inner sides of the two first push-pull support member bodies or on the two sides of the second push-pull support member body.
8. The novel steel main beam closure longitudinal and vertical displacement adjustment device according to claim 1, wherein a plurality of stiffening ribs are arranged on the web plate.
9. The novel steel girder closure longitudinal and vertical displacement adjustment device according to claim 1, wherein the two fourth webs are arranged at positions of the steel girders on the left side and the right side, which are close to the closure openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810755380.8A CN108708293B (en) | 2018-07-11 | 2018-07-11 | Novel steel girder closure longitudinal and vertical displacement adjustment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810755380.8A CN108708293B (en) | 2018-07-11 | 2018-07-11 | Novel steel girder closure longitudinal and vertical displacement adjustment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108708293A CN108708293A (en) | 2018-10-26 |
| CN108708293B true CN108708293B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810755380.8A Active CN108708293B (en) | 2018-07-11 | 2018-07-11 | Novel steel girder closure longitudinal and vertical displacement adjustment device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525866A (en) * | 2009-04-17 | 2009-09-09 | 中铁大桥局股份有限公司 | Multiple girder steel beam compel closure technique using deviation of temporary rest pier |
| WO2010015178A1 (en) * | 2008-08-06 | 2010-02-11 | 中铁大桥局股份有限公司 | Upper-bearing typed movable formwork |
| CN104929054A (en) * | 2015-06-03 | 2015-09-23 | 中交第二航务工程局有限公司 | Method for rapid closure and position adjustment of steel trussed cable-stayed bridge |
| CN206143637U (en) * | 2016-10-14 | 2017-05-03 | 中交一公局第五工程有限公司 | Steel longeron moves adjusting device with great ease |
| CN208501519U (en) * | 2018-07-11 | 2019-02-15 | 中铁大桥局集团有限公司 | A kind of vertical vertical displacement adjustment device of Novel steel girder closure |
-
2018
- 2018-07-11 CN CN201810755380.8A patent/CN108708293B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010015178A1 (en) * | 2008-08-06 | 2010-02-11 | 中铁大桥局股份有限公司 | Upper-bearing typed movable formwork |
| CN101525866A (en) * | 2009-04-17 | 2009-09-09 | 中铁大桥局股份有限公司 | Multiple girder steel beam compel closure technique using deviation of temporary rest pier |
| CN104929054A (en) * | 2015-06-03 | 2015-09-23 | 中交第二航务工程局有限公司 | Method for rapid closure and position adjustment of steel trussed cable-stayed bridge |
| CN206143637U (en) * | 2016-10-14 | 2017-05-03 | 中交一公局第五工程有限公司 | Steel longeron moves adjusting device with great ease |
| CN208501519U (en) * | 2018-07-11 | 2019-02-15 | 中铁大桥局集团有限公司 | A kind of vertical vertical displacement adjustment device of Novel steel girder closure |
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| CN108708293A (en) | 2018-10-26 |
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