CN102650118B - 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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- CN102650118B CN102650118B CN2012101552645A CN201210155264A CN102650118B CN 102650118 B CN102650118 B CN 102650118B CN 2012101552645 A CN2012101552645 A CN 2012101552645A CN 201210155264 A CN201210155264 A CN 201210155264A CN 102650118 B CN102650118 B CN 102650118B
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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 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 mountain area.
Background technology
Prefabricated case beam set up that two loop wheel machines of general employing lift, mobile bridge formation erecting and the method construction such as large-scale floating crane is floating chase erected.While in mountain area, carrying out bridge construction, because road and bridge pass through mountain, tunnel is connected with bridge, and the building height of bridge is also higher, so setting up of prefabricated case beam generally all adopts portable Bridge Erector to set up, is difficult to adopt loop wheel machine to lift method and sets up.In the closer situation of the abutment that runs into bridge and tunnel face, when portable Bridge Erector sets up side bar, the balancing segment of Bridge Erector rear end can't traversingly put in place because being subject to the horizontal restriction of tunnel trunk, and side bar just can't set up with Bridge Erector.With current existing technology, only have and adopt the repacking Bridge Erector, repack the balancing segment of mobile bridge formation drive end unit into a plurality of sections, the Bridge Erector reach put in place and firm supporting after, remove balancing segment stage by stage until Bridge Erector can traversingly put in place.But this scheme is larger to the change of Bridge Erector, delivering to special steel work producer after must removing Bridge Erector is changed a social system, and after the transformation of the way, the Bridge Erector original structure is caused to larger infringement, integral rigidity descends to some extent, directly arrive durability and the application life of the whole equipment of impact.
Summary of the invention
Purpose of the present invention is closed on one of tunnel face for Bridges in Mountainous Areas can't be by the problem of mobile bridge formation erecting across prefabricated case beam, under the prerequisite of original mobile Bridge Erector equipment not being reequiped, provide a kind of construction equipment and method of novel sliding method erecting case beam.
The present invention is achieved by the following technical solutions: the construction equipment of given first sliding method erecting case beam, comprise for the upper slide with case beam soffit laminating, for the glide path with bent cap or the laminating of abutment upper surface, for towed equipment and the thrustor of movable case beam, between the soffit of described upper slide and the upper surface of glide path for being slidably matched.
Described construction equipment also comprises spacing wire rope and the means for adjusting limit of movement oppositely arranged on glide direction.
Described upper slide comprises the anti-slip rubber skin for directly contacting with case beam soffit, the corrosion resistant plate for coordinating with the glide path upper surface slide, between described anti-slip rubber skin and corrosion resistant plate, is provided with the steel plate backing plate; Described glide path comprises polyfluortetraethylene plate for being slidably matched with described corrosion resistant plate, for the anti-slip rubber skin with bent cap or the laminating of abutment upper surface, be provided with the slideway backing plate between described polyfluortetraethylene plate and 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.
Described upper slide light plate backing plate and corrosion resistant plate connected mode are welding, and described slideway backing plate is stacked alternately by multilayer steel plates and anti-slip rubber skin and forms, and between its middle slideway backing plate the superiors and described polyfluortetraethylene plate, uses epoxy bond.
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, comprise the following steps: at first at bent cap or abutment upper berth, set slideway, the glide path height is higher than bearing pad stone; Secondly upper slide is placed on glide path and forms and be slidably matched; Finally prefabricated case beam is placed on upper slide, by the towed equipment in the place ahead and the thrustor at rear, makes upper slide slippage on lower skateboard, until the case beam is traversing to design beam position.
Above-mentioned job practices is further refined as following steps:
(1), lay successively glide path on bent cap or abutment, the glide path height is higher than bearing pad stone 30cm;
(2) brushing one deck silicone grease, upper slide is placed on glide path, and between corrosion resistant plate and polyfluortetraethylene plate;
(3), prefabricated case beam is placed on the anti-slip rubber skin of upper slide, the traction suspension ring are installed respectively at the two ends of case beam one side.And be connected with an end of traction leading block of chain, the other end of traction leading block of chain is connected with the Antivibration block of a side by wire rope; The traction suspension ring are also installed respectively at the two ends of case beam opposite side, and are connected mounting limit adjusting device on haulage cable with the Antivibration block of opposite side by wire rope;
(4), operation traction leading block of chain, dilatory case beam is to design beam position slippage, alternately conversion is installed glide path and is progressively loosened spacing wire rope by means for adjusting limit of movement simultaneously;
(5), when arriving, box girder sliding approaches design Liang Weishi, 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, at the two ends of case beam, with jack, divide a plurality of strokes to shift the case back onto design attitude respectively.Finally with special-purpose slim jack, the prefabricated case beam jacking is got up, temporary support and permanent bearing are installed, lower skateboard and backing plate in extraction, thus complete 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 peel are stacked alternately, and one side is convenient to adjust and is slided into height, takes full advantage of on the other hand between rubber peel and 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 corrosion resistant plate, just the prefabricated case beam slippage can be put in place by very little horizontally tracting or jacking force, and reasonable stress, technique are simple, easy to operate.
3, glide path of the present invention adopt two groups mutually replace, rotation turnover used, and easy construction, saves material.
4, during the invention process, only need to precast beam be put in the middle of bent cap just with Bridge Erector, need not change a social system portable Bridge Erector, cause the damage of the equipment of setting a roof beam in place.
5, during the invention process, in sliding beam process, traversing stopping means oppositely is set, prevents that slippage is too fast, guarantee the safety in slipping.
6, slide device of the present invention corrosion resistant plate, polyfluortetraethylene plate, steel plate and rubber peel used is easy to buy, and construction cost is smaller, and leading block of chain and the general building site of jack that another traction and pushing tow are used have, and do not need to purchase separately again.
Thereby the present invention has good popularizing value.
The accompanying drawing explanation
Fig. 1 is the sliding method lateral traction arrangement diagram of setting a roof beam in place;
Fig. 2 is the sliding method lateral pushing arrangement diagram of setting a roof beam in place;
Fig. 3 is that the bent cap slideway is arranged schematic diagram;
Fig. 4 is that the abutment slideway is arranged schematic diagram;
Fig. 5 is the runner device detail drawing;
In 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, 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, Antivibration 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 invention will be further described, but not as the restriction of invention.
As shown in accompanying drawing 1, accompanying drawing 2, the sliding method of the present utility model 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 steel plate backing plate 2-2,3-2 used, and corrosion resistant plate 2-1 and anti-slip rubber skin 2-3,3-3, then clear up bent cap (abutment) 11 end faces, arrange glide path 3, make its aspect ratio bearing pad stone 9 exceed 30mm, then install slide plate on glide path, attention is brushing one deck silicone grease between upper slide 2 and glide path 3, to reduce friction between upper slide 2 and glide path 3.The slideway at bent cap (abutment) 11 tops is arranged, is seen accompanying drawing 3 and accompanying drawing 4.Upper slide 2 and glide path 3 are arranged as follows: referring to accompanying drawing 5, upper slide 2 comprises the anti-slip rubber skin 2-3 directly contacted with case beam 1 soffit, the corrosion resistant plate 2-1 coordinated with glide path 3 upper surface slide, is provided with steel plate backing plate 2-2 between anti-slip rubber skin 2-3 and corrosion resistant plate 2-1; Glide path 3 comprise the polyfluortetraethylene plate 3-1 that is slidably matched with described corrosion resistant plate 2-1, with the anti-slip rubber skin 3-3 of bent cap (abutment) 11 upper surfaces laminatings, be provided with the slideway backing plate between polyfluortetraethylene plate 3-1 and anti-slip rubber skin 3-3, the slideway backing plate is stacked alternately and is formed by multilayer lower steel plate backing plate 3-2 and rubber peel 3-3, wherein between the lower steel plate backing plate 3-2 of the superiors and polyfluortetraethylene plate 3-1, uses epoxy bond.
As accompanying drawing 1, while setting a roof beam in place, first with portable Bridge Erector, prefabricated case beam is placed on the upper slide 2 of bent cap (abutment) 11, then traction suspension ring 8 are installed, to bundle wire rope 5 is positioned on Antivibration block 10, traction leading block of chain 4 is installed, after spacing wire rope 6 and means for adjusting limit of movement 7 complete, again at the two ends of prefabricated case beam 1, synchronous with drawing the laterally dilatory prefabricated case beam of leading block of chain 4 to design beam position slippage, in slipping, for guaranteeing the uniform slippage of beam body, at the spacing wire rope 6 of oppositely arranging of glide direction and means for adjusting limit of movement 7, slippage along with the beam body, progressively loosen spacing wire rope 6 by means for adjusting limit of movement 7.
As accompanying drawing 2, when prefabricated case beam 1 slippage designs Liang Weishi to approaching, 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 minutes a plurality of strokes of jack by 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 jacks, prefabricated case beam 1 jacking is got up, the permanent bearing of abutment and the temporary support above bent cap are installed, thereby complete whole work that the monolithic prefabricated case beam sets up, set up after the same method other prefabricated case beams.
Except the described technical characterictic of this manual, be the known technology of those skilled in the art.
Claims (6)
1. the construction equipment of a sliding method erecting beam, it is characterized in that, comprise for the upper slide with case beam soffit laminating, for the glide path with bent cap or the laminating of abutment upper surface, for towed equipment and the thrustor of movable case beam, between the soffit of described upper slide and the upper surface of glide path for being slidably matched; Described construction equipment also comprises spacing wire rope and the means for adjusting limit of movement oppositely arranged on glide direction; Described upper slide comprise anti-slip rubber skin for directly contacting with case beam soffit, with the corrosion resistant plate that the glide path upper surface slide coordinates, described anti-slip rubber skin for and corrosion resistant plate between be provided with the steel plate backing plate; Described glide path comprises the polyfluortetraethylene plate that is slidably matched with described corrosion resistant plate, for the anti-slip rubber skin with bent cap or the laminating of abutment upper surface, be provided with the slideway backing plate between described polyfluortetraethylene plate and anti-slip rubber skin.
2. the construction equipment of sliding method erecting beam according to claim 1, 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.
3. the construction equipment of sliding method erecting beam according to claim 1, it is characterized in that, described upper slide light plate backing plate and corrosion resistant plate connected mode are welding, described slideway backing plate is stacked alternately and is formed by multilayer steel plates and anti-slip rubber skin, between its middle slideway backing plate the superiors and described polyfluortetraethylene plate, uses epoxy bond.
4. the construction equipment of sliding method erecting beam according to claim 3, 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 job practices of a sliding method erecting beam, it is characterized in that, the construction equipment of the described sliding method erecting of the application arbitrary claim of 1-4 beam, concrete steps are as follows: at first at bent cap or abutment upper berth, set slideway, the glide path height is higher than bearing pad stone; Secondly upper slide is placed on glide path and forms and be slidably matched; Finally prefabricated case beam is placed on upper slide, by the towed equipment in the place ahead and the thrustor at rear, makes upper slide slippage on lower skateboard, until the case beam is traversing to design beam position.
6. the job practices of sliding method erecting beam according to claim 5, is characterized in that, application rights requires the construction equipment of 4 described sliding method erecting beams, and concrete steps are as follows:
(1), lay successively glide path on bent cap or abutment, the glide path height is higher than bearing pad stone 30cm;
(2) brushing one deck silicone grease, upper slide is placed on glide path, and between corrosion resistant plate and polyfluortetraethylene plate;
(3), prefabricated case beam is placed on the anti-slip rubber skin of upper slide, the traction suspension ring are installed respectively at the two ends of case beam one side, and are connected with an end of traction leading block of chain, the other end that draws leading block of chain is connected with the Antivibration block of a side by wire rope; The traction suspension ring are also installed respectively at the two ends of case beam opposite side, and are connected mounting limit adjusting device on haulage cable with the Antivibration block of opposite side by wire rope;
(4), operation traction leading block of chain, dilatory case beam is to design beam position slippage, alternately conversion is installed glide path and is progressively loosened spacing wire rope by means for adjusting limit of movement simultaneously;
(5), when arriving, box girder sliding approaches design Liang Weishi, 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, at the two ends of case beam, with jack, divide a plurality of strokes to shift the case back onto design attitude respectively.
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| Application Number | Priority Date | Filing Date | Title |
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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 true CN102650118B (en) | 2013-12-04 |
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