CN101195987B - Stayed-cable bridge midspan incremental launching auxiliary closure technique - Google Patents
Stayed-cable bridge midspan incremental launching auxiliary closure technique Download PDFInfo
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- CN101195987B CN101195987B CN 200710169051 CN200710169051A CN101195987B CN 101195987 B CN101195987 B CN 101195987B CN 200710169051 CN200710169051 CN 200710169051 CN 200710169051 A CN200710169051 A CN 200710169051A CN 101195987 B CN101195987 B CN 101195987B
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Abstract
The invention discloses a cable-stayed bridge middle span incremental launching auxiliary closure process and a beam section shifting combination device. After the construction of two side beam sections of a closed opening is accomplished, a temporary channel and stiffen frameworks are arranged between two side beam sections of the closed opening, and a temporary replacing ballast is arrange on the both sides of the closed opening; after two side beam sections are adjusted, the stiffen frameworks between the beam sections are connected into a whole; two side beam sections of the closed openingare respectively shifted towards a land side; a deck erection crane uplifts the closing beam sections, simultaneously, the temporary replacing ballast of the beam sections is unloaded; the closing beam sections are arranged in the closed opening, two side beam sections are shifted backwards and matched with the closing beam sections; the closing beam sections are connected with two side beam sections. The method of the invention integrates the advantages of natural temperature closing and the incremental launching closing, simultaneously, reduces the temperature influence to the completion structure and the line form, avoids the problem that the incremental launching closing construction time is long, and ensures the construction progress. The incremental launching auxiliary closure process has the advantages that the operation is convenient, the control is easy and the construction accuracy is easy to be controlled.
Description
Technical field
The invention belongs to and stride closure method in the cable stayed bridge, be specifically related to stride in a kind of cable stayed bridge incremental launching auxiliary closure method and relevant beam section pulling, shifting and combining device.
Background technology
For striding closure in the cable stayed bridge, the domestic temperature natural closure that all adopts, the external general pushing closure that adopts.
Temperature natural closure is to join according to the environment temperature in when closure and closure mouth to cut closed beam section (changing closed beam section length), lift the closure of beam section by the both sides loop wheel machine, article two, seam is welded synchronously, by this technology construction, closure speed is fast, but generally can be to main span span length degree behind the one-tenth bridge, structure stress and linear generation certain influence, this be because: in to stride closure design basis temperature be 20 ℃, stride closure under this state of temperature, carrying out, can not have a negative impact to permanent structure, but in practice of construction, be subjected to the influence of closure opportunity and natural conditions thereof, environment during closure and structure temperature all there are differences with fiducial temperature, and this will cause joining the closed beam section length and the design load of cutting by the closure mouth of measuring and certain difference occur, thereby can produce above influence.
Pushing closure is to the closed beam section blanking according to the design basis temperature, by (changing closure mouthful length) after the pushing closure mouth beam sections at two sides, one-sided loop wheel machine lifting beam section enters the Longkou, article two, seam gradation welding (asynchronous welding), by the construction of this technology, can guarantee into main span span length degree behind the bridge, structure stress and linear, but the engineering time is long, concerning the steel case beam that is in maximum single-cantilever state, risk is bigger.
Summary of the invention
The object of the present invention is to provide in a kind of cable stayed bridge and stride incremental launching auxiliary closure technique, to overcome the defective of striding closure in the above-mentioned cable stayed bridge.
Realize that the object of the invention technical scheme is: stride incremental launching auxiliary closure technique in the cable stayed bridge, it be finish close up the construction of mouthful beam sections at two sides after, the interim ballast that substitutes is set closing up occasional passage, stiff skeleton to be installed between mouthful beam sections at two sides and to be closed up on mouthful beam sections at two sides; After adjusting beam sections at two sides, the stiff skeleton of beam sections at two sides is connected into integral body; With the beam section of both sides, Longkou respectively the onshore layback move; The bridge floor loop wheel machine lifts closed beam section, sheds the beam section simultaneously and substitutes ballast temporarily; Closed beam section enters closure mouthful, and the beam sections at two sides travelling backwards is also mated with closed beam section; Closed beam section is connected with beam sections at two sides.
Method synthesis of the present invention the advantage of temperature natural closure and pushing closure, reduced simultaneously when utilizing temperature to close up, temperature has been avoided long problem of pushing closure engineering time again to becoming bridge construction and linear influence, has guaranteed construction speed.Easy to operate, the easy control of incremental launching auxiliary closure technique, can guarantee construction precision.
Description of drawings
Stride incremental launching auxiliary closure technique step 1 schematic diagram in Fig. 1 cable stayed bridge.
Stride incremental launching auxiliary closure technique step 2 schematic diagram in Fig. 2 cable stayed bridge.
Stride incremental launching auxiliary closure technique step 3 schematic diagram in Fig. 3 cable stayed bridge.
Stride incremental launching auxiliary closure technique step 4 schematic diagram in Fig. 4 cable stayed bridge.
Stride incremental launching auxiliary closure technique step 5 schematic diagram in Fig. 5 cable stayed bridge.
Stride incremental launching auxiliary closure technique step 7 schematic diagram in Fig. 6 cable stayed bridge.
Stride incremental launching auxiliary closure technique step 8 schematic diagram in Fig. 7 cable stayed bridge.
Fig. 8 beam section pulling, shifting and combining device structural representation.
The layout schematic diagram of Fig. 9 a～Fig. 9 c beam section pulling, shifting and combining device between Sarasota and steel case beam.
Figure 10 tension rod, reducing nut and drag-line anchor head connection diagram.
The specific embodiment
Present embodiment is used for the explanation to claim of the present invention, and protection scope of the present invention is not limited to the content of following description.
As shown in Figure 1, close up the construction of mouthful beam sections at two sides: 100 welding of closure mouthful beam sections at two sides are finished, the corresponding suspension cable of suspension cable 200 and bank side on this beam section of stretch-draw for the first time; Bridge floor loop wheel machine 300 uncouplings; Suspension cable and the corresponding suspension cable of bank side on the closure of the stretch-draw for the second time mouthful beam sections at two sides.600 is movable jig.
As shown in Figure 2, move a beam section behind the bridge floor loop wheel machine 300, change suspender (shoulder pole girder); Mobile crane 400 is in place, removes and hangs Suo Pingtai 201, and occasional passage 502, stiff skeleton 500 and the interim ballast 501 (gross weight is a closed beam section weight) that substitutes are installed;
As shown in Figure 3, bridge floor loop wheel machine 300 moves forward to the lifting position of closed beam section, and inspection trolley moves forward near the closure mouth.
As shown in Figure 4, adjust relative elevation, closure mouthful wide (upper and lower opening) and the axis of beam section 100; The stiff skeleton 500 of both sides, Longkou is welded into integral body; Continuous monitoring is carried out in involutory Longkou; Loosen the vertical interim affixed rope 880 part Suo Li of tower beam (Fig. 9 a), with the beam section of both sides, Longkou respectively the onshore layback move; When the onshore layback moved, river curb girder section pulling, shifting and combining device 800 loosened, and bank curb girder section pulling, shifting and combining device 801 stretch-draw (Fig. 9 b) are until beam section pulling, shifting is arrived the precalculated position; River curb girder section pulling, shifting and combining device 800 is identical with bank curb girder section pulling, shifting and combining device 801 structures.
As shown in Figure 5, fortune beam secure location; Bridge floor loop wheel machine 300 lifts closed beam section, sheds the beam section simultaneously and substitutes ballast 501 temporarily.
As shown in Figure 6, closed beam section 700 enters the closure mouth, beam sections at two sides travelling backwards, closed beam section positioning and closed beam section coupling; During the beam sections at two sides travelling backwards, river curb girder section pulling, shifting and combining device stretch-draw, bank curb girder section pulling, shifting and combining device loosens.Closed beam section and beam sections at two sides seam 701 are welded simultaneously, and it is affixed temporarily in time to remove the tower beam.
As shown in Figure 7, recover adjusted Suo Li; The bridge floor loop wheel machine retreats, and inspection trolley retreats, and removes structures such as stiff skeleton, the lifting tuyere.
As shown in Figure 8, beam section pulling, shifting and combining device comprises the base 802 that is provided with on the Sarasota, feet 803 is set on the base 802, connect punching jack 804 on the feet 803, tension rod 805 passes punching jack 804 and is attached thereto, and the end of passing the tension rod 805 of punching jack is connected with drag-line 806; The other end of drag-line 806 is hinged on steel case beam 900 base plates.Steel case beam 900 times connects anchor slab 807, the anchor slab 807 drag-line anchor head 808 that is articulated and connected, and drag-line anchor head 808 is connected with drag-line 806.The end of tension rod 805 with drag-line 806 syndetons is: tension rod 805 is connected with punching jack 804 by locking nut 810, tension rod 805 ends connect reducing nut 812, reducing nut 812 is connected with drag-line anchor head 811, and drag-line anchor head 811 connects drag-line 806.Base 802 is located on the lower transverse beam 901 of Sarasota.As shown in figure 10.Drag-line anchor head 811 is with the general structure of suspension cable anchoring on the existing suspension cable bridge.
Shown in Fig. 9 b, be provided with two pairs at least relatively between Sarasota lower transverse beam 901 and the steel case beam 900 to beam section pulling, shifting and combining device, a beam section pulling, shifting and combining device 801 of each centering is towards the bank side, and another beam section pulling, shifting and combining device 800 is towards the river side.Shown in Fig. 9 c, between Sarasota lower transverse beam 901 and the steel case beam 900 four pairs of beam section pulling, shifting and combining devices are set in the present embodiment.
Claims (6)
1. stride incremental launching auxiliary closure technique in a cable stayed bridge, it be finish close up the construction of mouthful beam sections at two sides after, the interim ballast that substitutes is set closing up occasional passage, stiff skeleton to be installed between mouthful beam sections at two sides and to be closed up on mouthful beam sections at two sides; After adjusting beam sections at two sides, the stiff skeleton of beam sections at two sides is connected into integral body; With the beam section of both sides, Longkou respectively the onshore layback move; The bridge floor loop wheel machine lifts closed beam section, sheds the beam section simultaneously and substitutes ballast temporarily; Closed beam section enters closure mouthful, and the beam sections at two sides travelling backwards is also mated with closed beam section; Closed beam section is connected with beam sections at two sides.
2. stride incremental launching auxiliary closure technique in the cable stayed bridge according to claim 1, it is characterized in that described beam section with the both sides, Longkou respectively the onshore layback to move be to utilize the beam section pulling, shifting and combining device onshore layback that is located between two Sarasotas and steel case beam to move to finish.
3. stride incremental launching auxiliary closure technique in the cable stayed bridge as claimed in claim 1 or 2, loosen the vertical interim affixed rope of tower beam before it is characterized in that the beam section of both sides, Longkou the onshore layback moving respectively.
4. stride incremental launching auxiliary closure technique in the cable stayed bridge according to claim 1, it is characterized in that described beam sections at two sides travelling backwards is to utilize the beam section pulling, shifting and combining device be located between two Sarasotas and steel case beam to finish to move to the river layback to finish.
5. stride incremental launching auxiliary closure technique in the cable stayed bridge as claimed in claim 1 or 2, when it is characterized in that the onshore layback moves, river curb girder section pulling, shifting and combining device loosens, and the stretch-draw of bank curb girder section pulling, shifting and combining device is until beam section pulling, shifting is arrived the precalculated position.
6. as striding incremental launching auxiliary closure technique in the cable stayed bridge as described in claim 1 or 4, when it is characterized in that the beam sections at two sides travelling backwards, river curb girder section pulling, shifting and combining device stretch-draw, bank curb girder section pulling, shifting and combining device loosens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710169051 CN101195987B (en) | 2007-12-27 | 2007-12-27 | Stayed-cable bridge midspan incremental launching auxiliary closure technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710169051 CN101195987B (en) | 2007-12-27 | 2007-12-27 | Stayed-cable bridge midspan incremental launching auxiliary closure technique |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910150504 Division CN101644030B (en) | 2007-12-27 | 2007-12-27 | Beam section pulling, shifting and combining device used for spanning and pushing auxiliary closure in cable stayed bridge |
Publications (2)
| Publication Number | Publication Date |
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| CN101195987A CN101195987A (en) | 2008-06-11 |
| CN101195987B true CN101195987B (en) | 2010-06-09 |
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| CN 200710169051 Expired - Fee Related CN101195987B (en) | 2007-12-27 | 2007-12-27 | Stayed-cable bridge midspan incremental launching auxiliary closure technique |
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Families Citing this family (23)
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| CN102199915B (en) * | 2010-03-23 | 2012-07-11 | 柳州欧维姆机械股份有限公司 | Walking type incremental launching device and bridge incremental launching construction method using same |
| CN101864735B (en) * | 2010-07-16 | 2011-07-27 | 中铁二局股份有限公司 | Construction method of joint section of continuous steel structure combined stayed-cable bridge of high speed railway |
| CN101935984B (en) * | 2010-09-08 | 2012-02-15 | 中铁大桥局集团有限公司 | Traveling device of frame beam crane of steel truss girder of cable-stayed bridge and use method thereof |
| CN101935985B (en) * | 2010-09-19 | 2011-11-23 | 湖南路桥建设集团公司 | Mid-span closure method for steel box girder of cable stayed bridge |
| CN102011369B (en) * | 2010-11-12 | 2013-01-23 | 中铁十二局集团第二工程有限公司 | Construction method of steel shells of bridge closure segments striding over various roads |
| CN102900023B (en) * | 2012-10-31 | 2015-10-14 | 武船重型工程股份有限公司 | A kind of combined type working platform |
| CN103215897B (en) * | 2013-03-26 | 2015-03-25 | 天津市市政工程研究院 | Closure construction method of cable-stayed bridge |
| CN104711933A (en) * | 2015-03-26 | 2015-06-17 | 招商局重庆交通科研设计院有限公司 | Reinforced concrete arch bridge construction method combined with cast-in-place cantilever method and stiff skeleton method |
| CN105088971B (en) * | 2015-09-09 | 2017-02-01 | 上海城建市政工程（集团）有限公司 | Mid-span closure construction method of corrugated steel web PC box girder cable-stayed bridge |
| CN105603882B (en) * | 2016-02-29 | 2017-05-10 | 中交第一公路工程局有限公司 | Continuous beam mid-span closure construction method achieving uninterrupted power of contact line and structure of method |
| CN105970832B (en) * | 2016-05-24 | 2017-11-17 | 西安公路研究院 | A kind of continuous rigid frame bridge closure segment pushing tow system and pushing tow method for correcting error |
| CN107245951B (en) * | 2017-06-27 | 2020-04-21 | 中铁四局集团第五工程有限公司 | Mid-span and double-side simultaneous closure construction method for cable-stayed bridge |
| CN108457191A (en) * | 2018-01-31 | 2018-08-28 | 中交第二航务工程局有限公司 | Large span T-steel structure beam sections for joining island bridge install closure method |
| CN108547223B (en) * | 2018-03-12 | 2020-05-05 | 中交第二航务工程局有限公司 | Steel-concrete superimposed hybrid beam bridge construction method |
| CN108570937B (en) * | 2018-05-16 | 2019-08-20 | 湖南品智工程技术有限公司 | A kind of push construction method that cable-stayed bridge main span is set up |
| CN109252446B (en) * | 2018-08-28 | 2020-07-10 | 中交武汉港湾工程设计研究院有限公司 | Steel box girder longitudinal pushing closure construction device and construction method thereof |
| CN110029598B (en) * | 2019-05-20 | 2023-12-26 | 南京林业大学 | Deformation control method for removing midspan closure section of continuous box girder bridge |
| CN111519536B (en) * | 2020-04-15 | 2021-10-19 | 中铁大桥局集团有限公司 | Closure method for midspan steel box girder of cable-stayed bridge of large-span floating system |
| CN111519549B (en) * | 2020-04-28 | 2021-12-14 | 中铁大桥局集团有限公司 | Closure construction method of large-span steel truss girder cable-stayed bridge |
| CN111926715B (en) * | 2020-08-20 | 2022-04-08 | 中交路桥华南工程有限公司 | Installation method of steel box girder bridge |
| CN112479115A (en) * | 2020-11-02 | 2021-03-12 | 上海市基础工程集团有限公司 | Be used for steel-concrete composite beam cable-stay bridge to close bridge floor crane combined hoisting construction equipment of section |
| CN113356064A (en) * | 2021-06-11 | 2021-09-07 | 中交二公局第二工程有限公司 | Mid-span closure-section-free pushing closure construction method for three-tower cable-stayed bridge |
| CN114703765B (en) * | 2022-03-01 | 2023-12-19 | 中铁广州工程局集团有限公司 | Construction method for closure section of double-tower cable-stayed bridge |
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| DE4306040C2 (en) * | 1993-02-26 | 1995-03-30 | Walter Dipl Ing Komm | Method and device for the transverse displacement of bridge components manufactured at heights |
| US6857156B1 (en) * | 2000-04-05 | 2005-02-22 | Stanley J. Grossman | Modular bridge structure construction and repair system |
| CN1904210A (en) * | 2006-07-28 | 2007-01-31 | 中铁工程设计咨询集团有限公司 | Installing and closure method of steel arched bridge arch rib large segment and lifting system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4306040C2 (en) * | 1993-02-26 | 1995-03-30 | Walter Dipl Ing Komm | Method and device for the transverse displacement of bridge components manufactured at heights |
| US6857156B1 (en) * | 2000-04-05 | 2005-02-22 | Stanley J. Grossman | Modular bridge structure construction and repair system |
| CN1904210A (en) * | 2006-07-28 | 2007-01-31 | 中铁工程设计咨询集团有限公司 | Installing and closure method of steel arched bridge arch rib large segment and lifting system |
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| CN101195987A (en) | 2008-06-11 |
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Application publication date: 20080611 Assignee: Long Highway Bridge Construction CCCC National Engineering Research Center Co., Ltd. Assignor: China Communications 2nd Navigational Bureau Contract record no.: 2013420000112 Denomination of invention: Stayed-cable bridge midspan incremental launching auxiliary closure technique and beam segment pulling and shifting composite set Granted publication date: 20100609 License type: Exclusive License Record date: 20130802 |
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Granted publication date: 20100609 Termination date: 20171227 |