CN102650118A - Construction device and method for erecting prefabricated beam by slip method - Google Patents
Construction device and method for erecting prefabricated beam by slip method Download PDFInfo
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- CN102650118A CN102650118A CN2012101552645A CN201210155264A CN102650118A CN 102650118 A CN102650118 A CN 102650118A CN 2012101552645 A CN2012101552645 A CN 2012101552645A CN 201210155264 A CN201210155264 A CN 201210155264A CN 102650118 A CN102650118 A CN 102650118A
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- case beam
- upper slide
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Abstract
The invention relates to a beam erecting device in the field of bridge construction, in particular to a construction device and a construction method for erecting a prefabricated beam by a slip method in a position close to a tunnel entrance in a mountainous area. The invention adopts the technical scheme as follows: the construction device comprises an upper slip plate for bonding with the lower surface of a box beam, a lower slip channel for bonding with the upper surface of a cover beam or a bridge abutment, and a dragging device and a pushing device for moving the box beam, wherein the lower surface of the upper slip plate has sliding fit with the upper surface of the lower slip channel. Compared with the prior art, the construction device has the advantages of low cost, simple process, convenience in construction and the like, and can quickly erect the prefabricated beam on the premise of unchanging the original movable bridge erection machine.
Description
Technical field
The present invention relates to a kind of device of setting a roof beam in place in the field of bridge construction, relate in particular to construction equipment and method that a kind of sliding method erecting beam of tunnel face is closed in the mountain area.
Background technology
Two loop wheel machines of general employing that set up of prefabricated case beam lift, move the bridge formation frame and establish and method constructions such as large-scale floating crane is floating chase erected.When carrying out bridge construction in the mountain area, because road and bridge pass through mountain, the tunnel links to each other with bridge, and the building height of bridge is also than higher, so setting up of prefabricated case beam generally all adopts portable bridge formation frame to establish, is difficult to adopt the loop wheel machine method of lifting to set up.Under the closer situation in the abutment that runs into bridge and tunnel face, when portable bridge formation frame was established side bar, the balancing segment of bridge formation machine rear end can't traversingly put in place because of receiving the horizontal restriction of tunnel trunk, and side bar just can't set up with the bridge formation machine.With present existing technology, have only and adopt repacking bridge formation machine, repack the balancing segment that moves the bridge formation drive end unit into a plurality of sections, the reach of bridge formation machine put in place and firm supporting after, remove balancing segment stage by stage till the bridge formation machine can traversingly put in place.But this scheme is bigger to the change of bridge formation machine; Delivering to special steel work producer after must removing the bridge formation machine changes a social system; And bigger infringement is caused to bridge formation machine original structure in transformation of the way back, and integral rigidity descends to some extent, directly arrives the durability and the application life of the whole equipment of influence.
Summary of the invention
The object of the invention to the mountain area bridge close on one of tunnel face stride prefabricated case beam can't be with moving the problem that the bridge formation frame is established; Under the prerequisite of original mobile bridge formation machine equipment not being reequiped, a kind of construction equipment and method of novel sliding method erecting case beam is provided.
The present invention realizes through following technical scheme: the construction equipment that at first provides sliding method erecting case beam; Comprise the upper slide that is used for fitting, be used for glide path, the towed equipment that is used for the movable case beam and the thrustor of fitting with bent cap or abutment upper surface with case beam soffit, between the soffit of described upper slide and the upper surface of glide path for being slidingly matched.
Described construction equipment also comprises reverse spacing wire rope that is provided with 6 and means for adjusting limit of movement 7 on the glide direction.
Described upper slide comprises the anti-slip rubber skin that is used for directly contacting with case beam soffit, be used for the corrosion resistant plate that cooperates with the glide path slide, is provided with the steel plate backing plate between said anti-slip rubber skin and the corrosion resistant plate; Described glide path comprises the polyfluortetraethylene plate that is used for being slidingly matched with said corrosion resistant plate, be used for the anti-slip rubber skin of fitting with bent cap or abutment upper surface, is provided with the slideway backing plate between said polyfluortetraethylene plate and the anti-slip rubber skin.
Described towed equipment comprises traction leading block of chain and traction suspension ring, and described thrustor comprises jack and pushing tow leveling cushion block.
Said upper slide light plate backing plate and stainless steel connected mode are welding, and described slideway backing plate is stacked alternately by multilayer steel plates and rubber skin to be formed, and uses epoxy bond between its middle slideway backing plate the superiors and the said polyfluortetraethylene plate.
Described towed equipment comprises traction leading block of chain and traction suspension ring, and described thrustor comprises jack and pushing tow leveling cushion block.
Then provide the job practices of said apparatus, may further comprise the steps: at first set slideway at bent cap or abutment upper berth, the glide path height is higher than bearing pad stone; Secondly upper slide is placed on to form on the glide path and is slidingly matched; At last prefabricated case beam is placed on the upper slide, makes upper slide slippage on lower skateboard, until the case beam is traversing to the beams designed position through the towed equipment in the place ahead and the thrustor at rear.
Above-mentioned job practices further is refined as following steps:
(1), on bent cap or abutment, lay glide path successively, the glide path height is higher than bearing pad stone 30cm;
(2), upper slide is placed on the glide path, brushing one deck silicone grease and between corrosion resistant plate and polyfluortetraethylene plate;
(3), prefabricated case beam is placed on the anti-slip rubber layer of upper slide, the traction suspension ring are installed at the two ends of case beam one side respectively, and are connected with an end of traction leading block of chain, and the other end of traction leading block of chain passes through wire rope and is connected with the antidetonation block of a side; The traction suspension ring are also installed at the two ends of case beam opposite side respectively, and are connected with the antidetonation block of opposite side through wire rope, and means for adjusting limit of movement is installed on the haulage cable;
(4), operation traction leading block of chain, dilatory case beam is to the slippage of beams designed position, alternately conversion is installed glide path and is progressively loosened spacing wire rope through means for adjusting limit of movement simultaneously;
(5), when box girder sliding arrives near the beams designed position; At case beam opposite side pushing tow leveling cushion block, jack and support bar reinforcement are installed; Wherein support the mode that bar reinforcement adopts the Churn drill punching; Anchor in the concrete of bent cap as the counter-force strong point of jack pushing tow, divide a plurality of strokes to shift the case back onto design attitude with jack respectively at the two ends of case beam.With special-purpose slim jack the prefabricated case beam jacking is got up at last, temporary support and permanent bearing are installed, extract slide plate and backing plate up and down out, thereby accomplish setting up of beam body.
Sliding method erecting box girder construction device and method of the present invention compared with prior art, has following remarkable advantage:
1, slideway backing plate employing steel plate of the present invention and rubber skin are stacked alternately, and one side is convenient to adjustment and is slided into height, makes full use of on the other hand between rubber skin and the steel plate and rubs, and prevent that sandwich plate generation slip is toppled in the beam body slides.
2, the present invention utilizes the superior sliding between polyfluortetraethylene plate and the corrosion resistant plate, just can the prefabricated case beam slippage be put in place with very little horizontally tracting or jacking force, and reasonable stress, technology are simple, easy to operate.
3, glide path of the present invention adopts two groups to replace each other, have enough to meet the need by turns and use easy construction, economical with materials.
When 4, the present invention implements, only need precast beam be put into the bent cap centre just, need not change a social system portable bridge formation machine, cause the damage of the equipment of setting a roof beam in place with the bridge formation machine.
When 5, the present invention implements, in sliding beam process, traversing stopping means is set oppositely, prevents that slippage is too fast, guarantee the safety in the slipping.
6, used corrosion resistant plate, polyfluortetraethylene plate, steel plate and the rubber skin of slide device of the present invention is easy to buy, and construction cost is smaller, and other draws and pushing tow is used leading block of chain and the general building site of jack have, and do not need to purchase separately again.
Thereby the present invention has excellent popularization use value.
Description of drawings
Fig. 1 is the sliding method lateral traction arrangement diagram of setting a roof beam in place;
Fig. 2 is the sliding method horizontal pushing tow arrangement diagram of setting a roof beam in place;
Fig. 3 arranges sketch map for the bent cap slideway;
Fig. 4 arranges sketch map for the abutment slideway;
Fig. 5 is the runner device detail drawing;
Among the figure: 1, prefabricated case beam, 2, upper slide, 2-1, corrosion resistant plate, 2-2, upper steel plate backing plate, 2-3, anti-slip rubber skin 3, glide path, 3-1, polyfluortetraethylene plate; 3-2, lower steel plate backing plate, 3-3, anti-slip rubber skin, 4, the traction leading block of chain, 5, the binding wire rope, 6, spacing wire rope; 7, means for adjusting limit of movement, 8, the traction suspension ring, 9, bearing pad stone, 10, the antidetonation block; 11, bent cap (abutment), 12, pushing tow leveling cushion block, 13, jack, 14, support bar reinforcement.
The specific embodiment
Below in conjunction with accompanying drawing and instantiation the present invention is described further, but not as the qualification of inventing.
Shown in accompanying drawing 1, accompanying drawing 2, the sliding method of the present invention device of setting a roof beam in place comprises upper slide 2, glide path 3, traction leading block of chain 4, binding wire rope 5, spacing wire rope 6, means for adjusting limit of movement 7, traction suspension ring 8, pushing tow leveling cushion block 12, jack 13 and supports bar reinforcement 14.
Before prefabricated case beam 1 sets up, at first be ready to upper slide 2 and glide path 3 used steel plate backing plate 2-2,3-2, and corrosion resistant plate 2-1 and anti-slip rubber skin 2-3,3-3; Clear up bent cap (abutment) 11 end faces then; Arrange glide path 3, make its aspect ratio bearing pad stone 9 exceed 30mm, on glide path, install slide plate again; Attention is brushing one deck silicone grease between upper slide 2 and glide path 3, to reduce friction between upper slide 2 and the glide path 3.The slideway at bent cap (abutment) 11 tops is arranged, is seen accompanying drawing 3 and accompanying drawing.4 upper slides 2 are arranged as follows with glide path 3: referring to accompanying drawing 5; Upper slide 2 comprises the anti-slip rubber skin 2-3 that directly contacts with case beam 1 soffit, the corrosion resistant plate 2-1 that cooperates with glide path 3 slide, is provided with steel plate backing plate 2-2 between anti-slip rubber skin 2-3 and the corrosion resistant plate 2-1; The anti-slip rubber skin 3-3 that glide path 3 comprises the polyfluortetraethylene plate 3-1 that is slidingly matched with said corrosion resistant plate 2-1, fits with bent cap (abutment) 11 upper surfaces; Be provided with the slideway backing plate between polyfluortetraethylene plate 3-1 and the anti-slip rubber skin 3-3; The slideway backing plate is stacked alternately by multilayer lower steel plate backing plate 3-2 and rubber skin 3-3 to be formed, and wherein uses epoxy bond between the lower steel plate backing plate 3-2 of the superiors and the polyfluortetraethylene plate 3-1.
Like accompanying drawing 1, when setting a roof beam in place, prefabricated case beam is placed on the upper slide 2 of bent cap (abutment) 11 with portable bridge formation machine earlier; Traction suspension ring 8 are installed then, will be bundled wire rope 5 and be positioned on the antidetonation block 10, after installation traction leading block of chain 4, spacing wire rope 6 and means for adjusting limit of movement 7 are accomplished; At the two ends of prefabricated case beam 1, laterally draw prefabricated case beams to the slippage of beams designed position, in slipping with traction leading block of chain 4 synchronously again; For guaranteeing the uniform slippage of beam body; At spacing wire rope 6 of oppositely being provided with of glide direction and means for adjusting limit of movement 7,, progressively loosen spacing wire rope 6 through means for adjusting limit of movement 7 along with the slippage of beam body.
Like accompanying drawing 2; When prefabricated case beam 1 slippage is arrived near the beams designed position; In the time of can't drawing again with traction leading block of chain 4; Pushing tow leveling cushion block 12, jack 13 are installed and are supported bar reinforcement 14 at opposite side, wherein support the mode that bar reinforcement adopts the Churn drill punching, anchor in the concrete of bent cap 11 the counter-force strong point as jack 12 pushing tows.At the two ends of prefabricated case beam 1, with 12 fens a plurality of strokes of jack with the prefabricated case beam pushing tow to design attitude.
After the prefabricated case beam pushing tow puts in place; Beam base fabric at the two ends of prefabricated case beam 1 is put 4 slim special-purpose jack; Prefabricated case beam 1 jacking is got up; The permanent bearing of abutment and the temporary support above the bent cap are installed, thereby are accomplished whole work that the monolithic prefabricated case beam sets up, set up other prefabricated case beams after the same method.
Except that the described technical characterictic of this manual, be the known technology of those skilled in the art.
Claims (8)
1. the construction equipment of a sliding method erecting beam; It is characterized in that; Comprise the upper slide that is used for fitting, be used for glide path, the towed equipment that is used for the movable case beam and the thrustor of fitting with bent cap or abutment upper surface with case beam soffit, between the soffit of described upper slide and the upper surface of glide path for being slidingly matched.
2. the construction equipment of sliding method erecting beam according to claim 1 is characterized in that, described construction equipment also comprises reverse spacing wire rope that is provided with 6 and means for adjusting limit of movement 7 on the glide direction.
3. the construction equipment of sliding method erecting beam according to claim 1 and 2; It is characterized in that; Described upper slide comprise the anti-slip rubber skin that is used for directly contacting with case beam soffit, with the corrosion resistant plate that the glide path slide cooperates, said anti-slip rubber skin be used for and corrosion resistant plate between be provided with the steel plate backing plate; Described glide path comprises the polyfluortetraethylene plate that is slidingly matched with said corrosion resistant plate, be used for the anti-slip rubber skin of fitting with bent cap or abutment upper surface, is provided with the slideway backing plate between said polyfluortetraethylene plate and the anti-slip rubber skin.
4. the construction equipment of sliding method erecting beam according to claim 1 and 2 is characterized in that, described towed equipment comprises traction leading block of chain and traction suspension ring, and described thrustor comprises jack and pushing tow leveling cushion block.
5. the construction equipment of sliding method erecting beam according to claim 3; It is characterized in that; Said upper slide light plate backing plate and stainless steel connected mode are welding; Described slideway backing plate is stacked alternately by multilayer steel plates and rubber skin to be formed, and uses epoxy bond between its middle slideway backing plate the superiors and the said polyfluortetraethylene plate.
6. the construction equipment of sliding method erecting beam according to claim 5 is characterized in that, described towed equipment comprises traction leading block of chain and traction suspension ring, and described thrustor comprises jack and pushing tow leveling cushion block.
7. the job practices of a sliding method erecting beam; It is characterized in that; The construction equipment of the described sliding method erecting of the arbitrary claim of application 1-6 beam, concrete steps are following: at first set slideway at bent cap or abutment upper berth, the glide path height is higher than bearing pad stone; Secondly upper slide is placed on to form on the glide path and is slidingly matched; At last prefabricated case beam is placed on the upper slide, makes upper slide slippage on lower skateboard, until the case beam is traversing to the beams designed position through the towed equipment in the place ahead and the thrustor at rear.
8. the job practices of sliding method erecting beam according to claim 7 is characterized in that, application rights requires the construction equipment of 6 described sliding method erecting beams, and concrete steps are following:
(1), on bent cap or abutment, lay glide path successively, the glide path height is higher than bearing pad stone 30cm;
(2), upper slide is placed on the glide path, brushing one deck silicone grease and between corrosion resistant plate and polyfluortetraethylene plate;
(3), prefabricated case beam is placed on the anti-slip rubber layer of upper slide, the traction suspension ring are installed at the two ends of case beam one side respectively, and are connected with an end of traction leading block of chain, and the other end of traction leading block of chain passes through wire rope and is connected with the antidetonation block of a side; The traction suspension ring are also installed at the two ends of case beam opposite side respectively, and are connected with the antidetonation block of opposite side through wire rope, and means for adjusting limit of movement is installed on the haulage cable;
(4), operation traction leading block of chain, dilatory case beam is to the slippage of beams designed position, alternately conversion is installed glide path and is progressively loosened spacing wire rope through means for adjusting limit of movement simultaneously;
(5), when box girder sliding arrives near the beams designed position; At case beam opposite side pushing tow leveling cushion block, jack and support bar reinforcement are installed; Wherein support the mode that bar reinforcement adopts the Churn drill punching; Anchor in the concrete of bent cap as the counter-force strong point of jack pushing tow, divide a plurality of strokes to shift the case back onto design attitude with jack respectively at the two ends of case beam.
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| CN2012101552645A CN102650118B (en) | 2012-05-18 | 2012-05-18 | Construction device and method for erecting prefabricated beam by slip method |
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| CN2012101552645A CN102650118B (en) | 2012-05-18 | 2012-05-18 | Construction device and method for erecting prefabricated beam by slip method |
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| CN102650118B CN102650118B (en) | 2013-12-04 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541308A (en) * | 2013-11-01 | 2014-01-29 | 鞍山东方钢构桥梁有限公司 | Variable cross-section cantilever bridge box girder self-locking synchronization pushing system and construction method |
| CN105016040A (en) * | 2014-04-30 | 2015-11-04 | 中冶天工集团有限公司 | Slippage construction method for giant overweight equipment |
| CN108385530A (en) * | 2018-02-24 | 2018-08-10 | 中国建筑第六工程局有限公司 | A kind of highway over strait spells wide section prefabricated case beam and sets up tooling and erection method |
| CN109208490A (en) * | 2018-10-31 | 2019-01-15 | 中铁二十五局集团第三工程有限公司 | A method of it will be on traversing to the main bridge seat of steel truss girder |
| CN109457626A (en) * | 2018-10-18 | 2019-03-12 | 广西路桥工程集团有限公司 | A method of precast beam being installed in height-limit area |
| CN109629456A (en) * | 2019-01-16 | 2019-04-16 | 中交公局海威工程建设有限公司 | A kind of precast beam traverse displacement unit and precast beam crossing system |
| CN111962402A (en) * | 2020-08-11 | 2020-11-20 | 中交路桥建设有限公司 | Lateral sliding installation method for steel box girder |
| CN112627843A (en) * | 2020-12-18 | 2021-04-09 | 中交路桥华东工程有限公司 | Bridge and tunnel overlapping area precast beam installation method |
| CN113136789A (en) * | 2021-05-06 | 2021-07-20 | 中国地震局工程力学研究所 | Rotary box girder anti-falling device |
| CN113957806A (en) * | 2021-12-02 | 2022-01-21 | 中交路桥华东工程有限公司 | Construction method of T-shaped beam at bridge-tunnel joint |
| CN114214922A (en) * | 2021-11-09 | 2022-03-22 | 广西路桥工程集团有限公司 | Tunnel bridge head-span precast beam side beam and erection method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541308B (en) * | 2013-11-01 | 2015-04-15 | 鞍山东方钢构桥梁有限公司 | Variable cross-section cantilever bridge box girder self-locking synchronization pushing system and construction method |
| CN103541308A (en) * | 2013-11-01 | 2014-01-29 | 鞍山东方钢构桥梁有限公司 | Variable cross-section cantilever bridge box girder self-locking synchronization pushing system and construction method |
| CN105016040A (en) * | 2014-04-30 | 2015-11-04 | 中冶天工集团有限公司 | Slippage construction method for giant overweight equipment |
| CN108385530B (en) * | 2018-02-24 | 2023-09-15 | 中国建筑第六工程局有限公司 | Tooling and method for erecting prefabricated box girder of wide-section spliced by cross-sea expressway |
| CN108385530A (en) * | 2018-02-24 | 2018-08-10 | 中国建筑第六工程局有限公司 | A kind of highway over strait spells wide section prefabricated case beam and sets up tooling and erection method |
| CN109457626A (en) * | 2018-10-18 | 2019-03-12 | 广西路桥工程集团有限公司 | A method of precast beam being installed in height-limit area |
| CN109208490A (en) * | 2018-10-31 | 2019-01-15 | 中铁二十五局集团第三工程有限公司 | A method of it will be on traversing to the main bridge seat of steel truss girder |
| CN109629456A (en) * | 2019-01-16 | 2019-04-16 | 中交公局海威工程建设有限公司 | A kind of precast beam traverse displacement unit and precast beam crossing system |
| CN109629456B (en) * | 2019-01-16 | 2024-03-22 | 中交一公局海威工程建设有限公司 | Precast beam sideslip device and precast beam sideslip system |
| CN111962402A (en) * | 2020-08-11 | 2020-11-20 | 中交路桥建设有限公司 | Lateral sliding installation method for steel box girder |
| CN112627843A (en) * | 2020-12-18 | 2021-04-09 | 中交路桥华东工程有限公司 | Bridge and tunnel overlapping area precast beam installation method |
| CN113136789B (en) * | 2021-05-06 | 2022-06-24 | 中国地震局工程力学研究所 | Rotary box girder anti-falling device |
| CN113136789A (en) * | 2021-05-06 | 2021-07-20 | 中国地震局工程力学研究所 | Rotary box girder anti-falling device |
| CN114214922A (en) * | 2021-11-09 | 2022-03-22 | 广西路桥工程集团有限公司 | Tunnel bridge head-span precast beam side beam and erection method thereof |
| CN113957806A (en) * | 2021-12-02 | 2022-01-21 | 中交路桥华东工程有限公司 | Construction method of T-shaped beam at bridge-tunnel joint |
| CN113957806B (en) * | 2021-12-02 | 2023-10-20 | 中交路桥华东工程有限公司 | Construction method of T-beam at bridge-tunnel junction |
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