CN101314937A - Construction method and apparatus of vertically rotating arch case downside - Google Patents
Construction method and apparatus of vertically rotating arch case downside Download PDFInfo
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- CN101314937A CN101314937A CNA2008100736147A CN200810073614A CN101314937A CN 101314937 A CN101314937 A CN 101314937A CN A2008100736147 A CNA2008100736147 A CN A2008100736147A CN 200810073614 A CN200810073614 A CN 200810073614A CN 101314937 A CN101314937 A CN 101314937A
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Abstract
The invention discloses a construction method of a downwardly and vertically rotated arch box and construction equipment. The method comprises the following steps: vertically assembling and installing steel box arch ribs in an arch support; using common steel wire ropes to hang upstream and downstream arch ribs; connecting a bunch of steel strands through a tie cable combining member; and adopting an ordinary jack to stretch the bunch of steel strands so as to continuously lay down the steel box arch ribs to realize vertical rotation and closure. The method of the invention can conduct vertical rotation construction for a steel box arch bridge and remove the restriction of special landform. In addition, the process and the operation are simple and convenient, the equipment selection and material selection are convenient and the construction cost is low.
Description
Technical field
The present invention relates to the job practices of the downward vertical transfer of steel case arch bridge in a kind of bridge construction.
Background technology
At present, the arch bridge that the downward vertical transfer mode of domestic employing is constructed, generally be adopt hoist engine or continuously jack upwards promote steel box arch rib as power set and carry out vertical transfer and close up, when using the method construction, arch springing the place ahead needs bigger spelling place, is subjected to the restriction of landform big.And it is indeterminate to use hoist engine to put Suo Shouli, and the distortion controllability of adjusting arch rib is put a difficulty than jack.Use continuous jack then the cost of equipment height and the inconvenience of drawing materials.
Summary of the invention
Requirement, the saving construction cost of purpose of the present invention in order to adapt to extreme terrain the invention provides a kind of downward vertical transfer arch of ordinary jack case that uses and realizes a kind of job practices of closing up, and this method can reduce the requirement to landform, saves operating expenses simultaneously.
The technical solution adopted for the present invention to solve the technical problems is:
The job practices of steel case arch bridge vertical transfer is: at first in perpendicular assembly of abut steel box arch rib is installed, use the ordinary steel wire sling to hang up the downstream arch rib, connect the boundling steel strand by knotted rope binding site member, adopt ordinary jack stretch-draw boundling steel strand to transfer steel box arch rib realization vertical transfer continuously again and close up.
The equipment that job practices adopted of above-described steel case arch bridge vertical transfer, comprise ordinary steel rope, knotted rope binding site member, boundling steel strand, stretch-drawing beam, moveable anchor and earth anchor, wherein stretch-drawing beam is fixed on the earth anchor, ordinary jack is installed on the stretch-drawing beam by moveable anchor and supporting leg, and the boundling steel strand pass ordinary jack and stretch-drawing beam, are passed by earth anchor, be connected with ordinary steel rope by knotted rope binding site member, the terminal button of ordinary steel rope is suspended on the steel box arch rib.
Above-described ordinary jack is the vertically-displacable structure.
Above-described stretch-drawing beam is made of two parallel channel-section steels and junction plate, and channel-section steel is provided with the floor of putting more energy into.
Above-described jack is made of cylinder piston, by moveable anchor, is installed on the stretch-drawing beam by supporting leg.
Advantage of the present invention is:
Though rotation swivel construction method is used in the Bridges in Our Country engineering construction early, when constructing in the narrower place of mountain area work plane, because the particularity of natural environment and traffic environment, big construction equipment is difficult to launch, and difficulty of construction is big.Can high-quality, finish the arch bridge vertical turn construction of valley area, be realize one of key factor that large span steel box arch bridge structure form is used in highway and railroad bridge with ensuring safety.So method of the present invention can overcome the restriction of extreme terrain, technological operation is easy, the equipment choosing and the convenience of drawing materials, and engineering cost is low, and can guarantee the accuracy of bridge construction.
Description of drawings
Fig. 1 is the job practices work schematic diagram of steel case arch bridge of the present invention vertical transfer.
Fig. 2 is the side view of jack installation site.
Fig. 3 is the plan view of jack installation site.
Fig. 4 is the front view of stretch-drawing beam
Fig. 5 is the side view of stretch-drawing beam.
Fig. 6 is an ordinary jack and the enlarged drawing that is connected of steel strand, stretch-drawing beam.
Component names among the figure: 1 steel box arch rib; 2 ordinary steel ropes; 3 knotted rope binding site members; 4 boundling guiding principle twisted wires; 5 earth anchors; 6 stretch-drawing beams; 7 ordinary jack; 9 boundling steel strand; 11 channel-section steels; 12 floors of putting more energy into; 13 junction plates; 14 backing plates; 23 moveable anchors; 24 baffle plates; 25 supporting legs; 26 jack cylinder bodies; 27 jack pistons; 28 moveable anchors; 4 steel strand.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, in perpendicular assembly of abut steel box arch rib 1 is installed, use ordinary steel rope 2 buttons to hang steel box arch rib 1, connect boundling steel strand 4 by knotted rope binding site member 3, boundling guiding principle twisted wire 4 passes earth anchor 5, stretch-drawing beam 6 enters ordinary jack 7, and ordinary jack 7 stretch-draw steel strand 4 are transferred steel box arch rib 1 realization vertical transfer continuously and closed up.
As Fig. 2, shown in Figure 3, boundling guiding principle twisted wire 9 passes earth anchor 5, stretch-drawing beam 6, enters ordinary jack 7.
As Fig. 4, shown in Figure 5, described stretch-drawing beam is made of two parallel channel-section steels 11 and junction plate 13, and channel-section steel 11 is provided with the floor 12 of putting more energy into, and backing plate 14 is fixed on the channel-section steel 11, for the usefulness of erecting tools anchor.
As shown in Figure 6, jack 7 is installed on the stretch-drawing beam 6 by supporting leg 25, and stretch-drawing beam 6 is fixed on the earth anchor 5; Jack 7 is the vertically-displacable jack, and boundling steel strand 4 run through the centre bore of jack 7, passes through stretch-drawing beam 6, after passing from earth anchor 5, is connected with ordinary steel rope by knotted rope binding site member, and the terminal button of ordinary steel rope is suspended on the steel box arch rib.
Application note:
Use above-mentioned specific embodiment the vertical transfer of steel case arch bridge job practices recently the Chongqing algae cross a river * * * bridge constructs, owing to be the mountain channel, the place is narrow, main equipment can't use, and it is indeterminate to use hoist engine to put Suo Shouli, use continuous jack expense high again, unite use so adopt ordinary jack, guiding principle twisted wire knotted rope and wire rope knotted rope, the result shows, can overcome the restriction of extreme terrain, technological operation is easy, the equipment choosing and the convenience of drawing materials, engineering cost is low, and construction quality is guaranteed.
Claims (5)
1, a kind of job practices of downward vertical transfer steel case arch bridge, it is characterized in that: at first steel box arch rib (1) is installed in perpendicular assembly of abut, use ordinary steel rope (2) button to hang up the downstream arch rib, connect boundling steel strand (4) by knotted rope binding site member (3), adopt ordinary jack (7) stretch-draw boundling steel strand (9) to transfer steel box arch rib (1) realization vertical transfer continuously again and close up.
2, a kind of equipment that job practices adopted of downward vertical transfer steel case arch bridge as claimed in claim 1, comprise ordinary steel rope (2), knotted rope binding site member (3), boundling steel strand (4), stretch-drawing beam (6), moveable anchor (23) and earth anchor (5), wherein stretch-drawing beam (6) is fixed on the earth anchor (5), ordinary jack (7) is installed on the stretch-drawing beam (6) by moveable anchor (23) and supporting leg, boundling steel strand (4) pass ordinary jack (7) and stretch-drawing beam (6), pass by earth anchor (5), be connected with ordinary steel rope (2) by knotted rope binding site member (3), be suspended on the steel box arch rib (1) through ordinary steel rope (2) button.
3, equipment according to claim 2 is characterized in that: ordinary jack (7) is the vertically-displacable structure.
4, equipment according to claim 2 is characterized in that: described stretch-drawing beam (6) is made of two parallel channel-section steels (11) and junction plate (13), and channel-section steel (11) is provided with the floor of putting more energy into (12) and supplies the backing plate (14) of erecting tools anchor.
5, equipment according to claim 2 is characterized in that: described jack is made of cylinder body (26) and piston (28), is installed on the stretch-drawing beam (6) by moveable anchor (23) and supporting leg (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100736147A CN101314937B (en) | 2008-06-10 | 2008-06-10 | Construction method and apparatus of vertically rotating arch case downside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100736147A CN101314937B (en) | 2008-06-10 | 2008-06-10 | Construction method and apparatus of vertically rotating arch case downside |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101314937A true CN101314937A (en) | 2008-12-03 |
| CN101314937B CN101314937B (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100736147A Expired - Fee Related CN101314937B (en) | 2008-06-10 | 2008-06-10 | Construction method and apparatus of vertically rotating arch case downside |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858056A (en) * | 2010-06-11 | 2010-10-13 | 中铁大桥局集团有限公司 | Fixing cable anchoring method and special device thereof |
| CN101864738A (en) * | 2010-06-11 | 2010-10-20 | 中铁大桥局集团有限公司 | Support system for constructing steel arch bridge by repeated vertical rotating method |
| CN105970814A (en) * | 2016-05-20 | 2016-09-28 | 中建三局基础设施工程有限公司 | Construction method of existing railway line-spanned swing bridge closure segment |
| CN106368126A (en) * | 2016-08-30 | 2017-02-01 | 中铁第四勘察设计院集团有限公司 | Construction method for clustered type assembling arch ribs |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864737B (en) * | 2010-06-11 | 2011-10-19 | 中铁大桥局集团有限公司 | Secondary vertical rotating construction method for arch rib of long-span steel arch bridge |
-
2008
- 2008-06-10 CN CN2008100736147A patent/CN101314937B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858056A (en) * | 2010-06-11 | 2010-10-13 | 中铁大桥局集团有限公司 | Fixing cable anchoring method and special device thereof |
| CN101864738A (en) * | 2010-06-11 | 2010-10-20 | 中铁大桥局集团有限公司 | Support system for constructing steel arch bridge by repeated vertical rotating method |
| CN105970814A (en) * | 2016-05-20 | 2016-09-28 | 中建三局基础设施工程有限公司 | Construction method of existing railway line-spanned swing bridge closure segment |
| CN106368126A (en) * | 2016-08-30 | 2017-02-01 | 中铁第四勘察设计院集团有限公司 | Construction method for clustered type assembling arch ribs |
| CN106368126B (en) * | 2016-08-30 | 2018-07-03 | 中铁第四勘察设计院集团有限公司 | The construction method of cluster type assembly arch rib |
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| Publication number | Publication date |
|---|---|
| CN101314937B (en) | 2010-08-18 |
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Granted publication date: 20100818 Termination date: 20140610 |
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