CN101476292B - Method and equipment for mounting precast beam - Google Patents
Method and equipment for mounting precast beam Download PDFInfo
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- CN101476292B CN101476292B CN2009100365118A CN200910036511A CN101476292B CN 101476292 B CN101476292 B CN 101476292B CN 2009100365118 A CN2009100365118 A CN 2009100365118A CN 200910036511 A CN200910036511 A CN 200910036511A CN 101476292 B CN101476292 B CN 101476292B
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- shellfish thunder
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- dolly
- bent cap
- nose girder
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Abstract
The invention relates to a prefabricated beam mounting method used for mounting prefabricated beam on the coping of bridge spanning old bridge or other barrier, which comprises the following steps: a, manufacturing a beam moving dolly according to the weight, structure and shape of the prefabricated beam; b, mounting the bailey launching nose between the copings and mounting the beam moving dollyon the bailey launching nose; c, hanging the prefabricated beam to the beam moving dolly by a crane and conveying the beam moving dolly along the bailey launching nose to the target position between the copings; d, mounting the prefabricated beam to the designed position by the crane. The prefabricated beam mounting method achieves the advantages of low cost, high construction efficiency and simple operation. The invention further discloses an equipment for mounting prefabricated beam.
Description
Technical field
The present invention relates to install the method and apparatus of precast beam, relate in particular to a kind of method and apparatus that precast beam is installed on the less bridge of old bridge or other obstructions, engineering quantity that is used to cross over.
Background technology
At present, generally adopt large-scale bridge formation machine to carry out the hanging beam construction during the large scale prefabricated girder span bridge crane of bridge beam, the conventional job practices of bridge formation machine is: adopt the bridge formation machine that precast beam is lifted to adjacent striding earlier, adopt the bridge formation machine to carry out the via hole construction then.Because the engineering quantity of the installation of bridge formation machine assembling is big, consumed time is long, thus adopt the job practices of bridge formation machine operation to be mainly used in to set a roof beam in place engineering quantity greatly, the construction period is not subjected to the situation that the bridge formation machine is marched into the arena and built-up time influences.And for duration of a project weak point and less bridge or the old bridge construction of the engineering quantity of setting a roof beam in place, because the time of large-scale bridge formation machine single turnover and assembling is long, expense is high, will causes adopting large-scale bridge formation machine to carry out the hanging beam construction and have a duration of a project and can't be met and have a higher shortcoming of the cost of setting a roof beam in place.For solving above-mentioned shortcoming, select for use usually by Beam transportation vehicle under the bent cap precast beam is transported to desire the installation site after, by crane precast beam is lifted the method for the design attitude to the bent cap.But when bridge need be crossed over when needing normally to be open to traffic under old bridge or other obstructions or the bridge, because stopping of old bridge or obstruction or wagon flow, make after Beam transportation vehicle is transported to precast beam the desire installation site, can't use crane that precast beam is lifted to bent cap under bent cap, promptly can not finish the installation of precast beam.So, use on the bent cap of the bridge of realizing crossing over old bridge or obstruction under the situation that said method can not be little in engineering quantity, the duration is short, operating expenses is low precast beam is installed, promptly can't satisfy the requirement of existing bridge construction.
Summary of the invention
The object of the present invention is to provide a kind of method and apparatus that is used to cross over old bridge or other obstructions, engineering quantity is less, cost is low, efficiency of construction is high, simple to operate installation precast beam.
The invention provides a kind of method that precast beam is installed, be used on the bridge bent cap of crossing over old bridge or other obstructions precast beam being installed, it may further comprise the steps:
A, make according to the weight of precast beam and construction profile and to move the beam dolly;
B, shellfish thunder nose girder is installed between bent cap, and the beam dolly that moves that will make is installed on described shellfish thunder nose girder;
C, by crane with precast beam lifting to the described beam dolly that moves, will move the beam dolly then and be transported between the bent cap that desire installs along shellfish thunder nose girder;
D, by after moving the beam dolly and being transported to precast beam between the bent cap that desire installs, by crane precast beam is mounted to design attitude.
Preferably, above-mentioned steps c also comprises the installation draw-gear, and this draw-gear is connected in and moves the beam dolly, makes by draw-gear and moves the beam dolly and move along shellfish thunder nose girder.
Preferably, above-mentioned steps a specifically comprises and chooses suitable steel and move the beam dolly with what it was welded into intersecting parallels, in the steel bottom that welding is good pulley is installed.
Another is preferred, and above-mentioned steps a comprises specifically and choose suitable channel-section steel and move the beam dolly with what it was welded into intersecting parallels that wherein, the groove that is positioned at two relative channel-section steels of below is down as the chute that moves the beam dolly.
Preferably, above-mentioned steps b specifically comprises: shellfish thunder sheet is installed between bent cap earlier, is laid railway sleepers on shellfish thunder sheet then, lay on sleeper and move the rail that the beam dolly cooperates at last, finish the making of shellfish thunder nose girder.
Further, comprise by Beam transportation vehicle before the above-mentioned steps c precast beam is transported to the job site.
The present invention also provides a kind of equipment that precast beam is installed, it is installed on the bridge bent cap of crossing over old bridge or other obstructions, the equipment that precast beam is installed comprises and moves beam dolly, shellfish thunder nose girder and draw-gear, this shellfish thunder nose girder is set up in the bridge bent cap, this moves the beam dolly and is installed on described shellfish thunder nose girder and moves along shellfish thunder nose girder, and draw-gear is connected with the described beam dolly that moves.
Preferably, the above-mentioned beam dolly that moves comprises at least 4 shaped steel, and this shaped steel is welded to each other into intersecting parallels, and the shaped steel bottom is provided with the pulley that matches with above-mentioned shellfish thunder nose girder.
Another is preferred, and the above-mentioned beam dolly that moves comprises at least 4 channel-section steels, and this channel-section steel is welded to each other into intersecting parallels, wherein be positioned at two relative channel-section steels of below and be parallel to each other, groove downwards and the channel-section steel that matches with shellfish thunder nose girder of the size of spacing and groove.
Further preferred, above-mentioned shellfish thunder nose girder comprises shellfish thunder sheet, sleeper and rail, and this shellfish thunder sheet is set up in the bridge bent cap vertically, and sleeper is layed on the shellfish thunder sheet, rail with move the beam dolly and be layed on the sleeper with matching.
The present invention compares with prior art and has the following advantages: because shellfish thunder nose girder is installed between the bridge bent cap, and the beam dolly that moves that will make is installed on shellfish thunder nose girder, moving the beam dolly can move along shellfish thunder nose girder, when with precast beam lifting after move on the beam dolly, precast beam can be transported to by draw-gear between the bent cap of its desire installation, by crane precast beam is mounted to design attitude at last, not needing to expend lot of manpower and material resources and time installs the bridge formation machine at the construction field (site), can make things convenient for, finish the installation of precast beam apace, and still can be open to traffic at the bottom of the work progress jackshaft, also solved since bridge can not be need cross over old bridge or other obstructions the time by crane with precast beam from lifting the technical problem to the bent cap under the bent cap.And the equipment that this method is used: shellfish thunder nose girder and move the beam dolly, it is simple in structure, manufacturing process is simple, on little for engineering quantity, as need to cross over old bridge or other obstructions bridge precast beam is installed, the time with installation is short, efficiency of construction is high, the low advantage of cost; And because shellfish thunder nose girder and move the beam dolly and can repeat can further be saved cost.
Description of drawings
Fig. 1 is a kind of flow chart that the method for precast beam is installed that the embodiment of the invention one provides;
Fig. 2 is a kind of flow chart that the method for precast beam is installed that the embodiment of the invention two provides;
Fig. 3 is a kind of structural representation that the equipment of precast beam is installed that the embodiment of the invention provides;
Fig. 4 is Fig. 3 " I-I " sectional structure schematic diagram;
Fig. 5 is that the embodiment of the invention provides a kind of equipment that precast beam is installed move beam vehicle structure schematic diagram;
Fig. 6 is a kind of construction schematic diagram that the equipment of precast beam is installed that the embodiment of the invention provides.
The specific embodiment
For making the present invention easier to understand, the present invention is further elaborated below in conjunction with accompanying drawing, but the embodiment in the accompanying drawing does not constitute any limitation of the invention.
As shown in Figure 1, the embodiment of the invention one provides a kind of method that precast beam is installed, and is used on the bridge bent cap of crossing over old bridge or other obstructions precast beam being installed, and comprises the steps:
101, weight and the construction profile making according to precast beam moves the beam dolly;
102, shellfish thunder nose girder is installed between bent cap, and the beam dolly that moves that will make is installed on described shellfish thunder nose girder;
103, by crane precast beam is lifted to the described beam dolly that moves, will move the beam dolly then and be transported between the bent cap of desire installation along shellfish thunder nose girder;
104, by after moving the beam dolly and being transported to precast beam between the bent cap that desire installs, precast beam is mounted to design attitude by crane.
Practical said method does not need to use large-scale bridge formation machine easily and efficiently precast beam to be installed on the bent cap.
As shown in Figure 2, the embodiment of the invention two provides a kind of method that precast beam is installed, and is used on the bridge bent cap of crossing over old bridge or other obstructions precast beam being installed, and comprises the steps:
201, choose suitable steel and move the beam dolly, pulley is installed in the steel bottom that welding is good with what it was welded into intersecting parallels.
The structural meterials that moves the beam dolly can be to satisfy the various steel that precast beam intensity is asked, and preferred, the material that moves the beam dolly can be a shaped steel.
Further preferred, the material that moves the beam dolly can be a channel-section steel, because the intensity height of channel-section steel is in light weight, and effectively waterproof and recycling, so use channel-section steel can reduce construction cost, improve the intensity of moving the beam dolly, alleviate the weight of moving the beam dolly.In addition, move the beam dolly with what channel-section steel was welded into intersecting parallels, two the relative channel-section steels that wherein are positioned at the below are parallel to each other, can need pulley be installed in the bottom of moving the beam dolly, thereby can save the material that moves the beam dolly by groove as the chute that moves the beam dolly when groove is downward.
202, shellfish thunder sheet is installed earlier between bent cap, on shellfish thunder sheet, is laid railway sleepers then, on sleeper, lay and move the rail that the beam dolly cooperates at last, finish the making of shellfish thunder nose girder.
The shellfish thunder sheet of above-mentioned steps ties and is connected together by flower, and is set up in vertically on the bent cap, is difficult for falling down for guaranteeing shellfish thunder sheet, diagonal brace can be set on bent cap prevent that shellfish thunder sheet is oblique and topple over.
203, the beam dolly that moves that will make is installed on shellfish thunder nose girder.
This step is about to move the pulley of beam dolly or the rail of chute and shellfish thunder nose girder is installed togather, and makes to move the beam dolly and can slide on shellfish thunder nose girder.For conveniently moving of the slip of beam dolly at shellfish thunder nose girder, can rail and move the pulley of beam dolly or the channel-section steel groove between coating butter.
204, draw-gear is installed, this draw-gear with move the beam dolly and be connected, make by draw-gear and move the beam dolly and move along shellfish thunder nose girder.
The draw-gear of this step can be the fixed pulley group of prior art, can be by the crane fixed pulley group that stretches, and make and move the beam dolly and move along shellfish thunder hanging beam, the power that is about to the vertical direction of crane traction converts to along the power of shellfish thunder nose girder horizontal direction.
205, by Beam transportation vehicle precast beam is transported to the job site.
206, by crane precast beam is lifted to the described beam dolly that moves, will move the beam dolly by draw-gear then and be transported between the bent cap of desire installation along shellfish thunder nose girder.
207, by after moving the beam dolly and being transported to precast beam between the bent cap that desire installs, precast beam is mounted to design attitude by crane.
After this step promptly adopts two cranes to fix with the two ends of precast beam respectively, that precast beam is traversing to design attitude.
Adopt shellfish thunder nose girder and move beam dolly fortune beam and cooperate the crane hanging beam that the mode of precast beam is installed, do not need to expend a large amount of time and cost the installation that large-scale bridge formation machine can be finished small-scale bridge precast beam is installed, it is simple to operate, efficiency of construction is high, difficulty of construction is little, cost is low and the work progress jackshaft at the bottom of still can be open to traffic, also solved since bridge can not be need cross over old bridge or other obstructions the time by crane with precast beam from lifting the technical problem to the bent cap under the bent cap.
Extremely shown in Figure 6 as Fig. 3, the invention provides a kind of equipment that precast beam 500 is installed, it is installed on the bridge bent cap 800 of crossing over old bridge 900 or other obstructions, the equipment that precast beam 500 is installed comprises and moves beam dolly 300, shellfish thunder nose girder 400 and draw-gear 700, this shellfish thunder nose girder 400 is set up in bridge bent cap 800, move beam dolly 300 and be installed on shellfish thunder nose girder 400 and move along shellfish thunder nose girder 400, draw-gear 700 with move beam dolly 300 and be connected by rope 701.
Owing to move beam dolly 300 and can move along shellfish thunder nose girder 400, move on the beam dolly 300 so can by crane 601 and crane 602 precast beam 500 be placed earlier, by crane 603 stretching and drawing devices 700 precast beam 500 is transported between the bent cap of desire installation then, at last, crane 601 and crane 602 are left between the bent cap of desire installation, and the pivoted arm of the pivoted arm of crane 601 and crane 602 being fixed, started simultaneously crane 601 and crane 602 respectively with the two ends of precast beam 500 is mounted to design attitude with precast beam 500.Can pass through crane 603 stretching and drawing devices 700, in like manner also can install stretching and drawing device 700 and precast beam 500 is transported between the bent cap that desire installs by other.
Be difficult for toppling over, being shifted for after precast beam 500 being placed on move beam dolly 300, can block 405 be set moving beam dolly 300 both sides.
Draw-gear 700 can be the fixed pulley group of prior art, can use the power of the vertical direction of crane 603 tractions to convert to along the power of shellfish thunder nose girder 400 horizontal directions.
As shown in Figure 5, move beam dolly 300 and can comprise at least 4 shaped steel 301, this shaped steel 301 is welded to each other into intersecting parallels, and shaped steel 301 bottoms are provided with and shellfish thunder nose girder 400 corresponding pulleys (not identifying among the figure).
Another is preferred, move beam dolly 300 and can comprise at least 4 channel-section steels 301, this channel-section steel 301 is welded to each other into intersecting parallels, wherein be positioned at two relative channel-section steels 301 of below and be parallel to each other, groove 302 downwards and the channel-section steel that matches with shellfish thunder nose girder 400 of the sizes of spacing and groove 302.
As shown in Figure 3 and Figure 4, shellfish thunder nose girder 400 comprises shellfish thunder sheet 401, sleeper 403 and rail 404, this shellfish thunder sheet 401 is set up in bridge bent cap 800 vertically, and sleeper 403 is layed on the shellfish thunder sheet 401, rail 404 with move beam dolly 300 and be layed in ordinatedly on the sleeper 403.
For conveniently moving the slip of beam dolly 300, can and move the pulley (not identifying among the figure) of beam dolly 300 or 302 coating butters of groove of channel-section steel 301 at rail 404.
Sleeper 403 can be a shaped steel.
The device structure of installation precast beam of the present invention is simple, manufacturing is simple, on little for engineering quantity, as need to cross over the bridge that has common requirement at the bottom of old bridge or other obstructions or the bridge bent cap 800 precast beam 500 is installed, shorter than the time that the large-scale bridge formation machine of prior art is installed, efficiency of construction is high, cost is low; And because shellfish thunder nose girder 400 and move beam dolly 300 and can repeat can further be saved cost.
The above is a preferred implementation of the present invention; certainly can not limit the present invention's interest field with this; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvement and change, these improvement and change also are considered as protection scope of the present invention.
Claims (3)
1. the method that precast beam is installed is used on the bridge bent cap of crossing over old bridge or other obstructions precast beam being installed, and it is characterized in that, may further comprise the steps:
A, according to the weight and the construction profile of precast beam, choose suitable channel-section steel and move the beam dolly what it was welded into intersecting parallels, wherein, the groove of two relative described channel-section steels that is positioned at the below is down as the chute that moves the beam dolly;
B, shellfish thunder nose girder is installed between bent cap, and the beam dolly that moves that will make is installed on described shellfish thunder nose girder;
C, by crane with precast beam lifting to the described beam dolly that moves, will move the beam dolly then and be transported between the bent cap that desire installs along shellfish thunder nose girder;
D, by after moving the beam dolly and being transported to precast beam between the bent cap that desire installs, by crane precast beam is mounted to design attitude;
Described step c also specifically comprises the installation draw-gear, will move the beam dolly by draw-gear then and be transported to step between the bent cap that desire installs along shellfish thunder nose girder; Described draw-gear comprises the fixed pulley group, be around in the rope of described fixed pulley group and be arranged at the crane with suspension hook under the described bridge bent cap, described rope ends is connected with the described suspension hook that moves beam dolly and described crane respectively, and the described beam dolly that moves of cable traction that stretches downwards of the suspension hook by crane moves horizontally;
Described step b specifically comprises shellfish thunder sheet is installed between bent cap earlier, lays railway sleepers on shellfish thunder sheet then, lays on sleeper and moves the rail that the beam dolly cooperates at last, finishes the making of shellfish thunder nose girder.
2. the method for installation precast beam according to claim 1 is characterized in that, comprises by Beam transportation vehicle before the described step c precast beam is transported to the job site.
3. the equipment of the installation precast beam that uses in the method for installation precast beam according to claim 1, it is installed on the bridge bent cap of crossing over old bridge or other obstructions, it is characterized in that, the equipment of described installation precast beam comprises and moves the beam dolly, shellfish thunder nose girder and draw-gear, described shellfish thunder nose girder is set up in described bridge bent cap, the described beam dolly that moves is installed on described shellfish thunder nose girder, and move along shellfish thunder nose girder, described draw-gear is connected with the described beam dolly that moves, the described beam dolly that moves comprises at least 4 channel-section steels, described channel-section steel is welded to each other into intersecting parallels, wherein being positioned at two relative described channel-section steels of below is to be parallel to each other, groove is downward, and the channel-section steel that the size of spacing and groove matches with shellfish thunder nose girder, described draw-gear comprises the fixed pulley group, be around in the rope and the crane that is arranged under the described bridge bent cap of described fixed pulley group with suspension hook, described rope ends is connected with the described suspension hook that moves beam dolly and described crane respectively, and the described beam dolly that moves of cable traction that stretches downwards of the suspension hook by crane moves horizontally; Described shellfish thunder nose girder comprises shellfish thunder sheet, sleeper and rail, and described shellfish thunder sheet is set up in described bridge bent cap vertically, and described sleeper is layed on the described shellfish thunder sheet, described rail with move the beam dolly and be layed on the sleeper with matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100365118A CN101476292B (en) | 2009-01-09 | 2009-01-09 | Method and equipment for mounting precast beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100365118A CN101476292B (en) | 2009-01-09 | 2009-01-09 | Method and equipment for mounting precast beam |
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| Publication Number | Publication Date |
|---|---|
| CN101476292A CN101476292A (en) | 2009-07-08 |
| CN101476292B true CN101476292B (en) | 2011-09-07 |
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| CN2009100365118A Active CN101476292B (en) | 2009-01-09 | 2009-01-09 | Method and equipment for mounting precast beam |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594190B (en) * | 2015-02-16 | 2016-04-13 | 西安公路研究院 | A kind of bridge seamless process stretching device and construction method thereof |
| CN104748732B (en) * | 2015-03-26 | 2017-05-10 | 广州瀚阳工程咨询有限公司 | Measurement method for segmental precast bridge erection field |
| CN108517785B (en) * | 2018-05-11 | 2020-08-21 | 中国二十二冶集团有限公司 | Bridge precast beam slab translation installation method |
| CN108981590B (en) * | 2018-06-13 | 2020-10-23 | 中铁隧道集团二处有限公司 | High-speed railway precast beam positioning system |
| CN108625270A (en) * | 2018-06-25 | 2018-10-09 | 成都市市政工程（集团）有限责任公司 | Nose girder gantry crane installs bridge prefabrication box girder construction method |
| CN109183629B (en) * | 2018-10-31 | 2020-04-28 | 上海城建市政工程（集团）有限公司 | Large cantilever bent cap prefabrication and assembly method |
| CN110552292A (en) * | 2019-08-05 | 2019-12-10 | 中交一公局第二工程有限公司 | construction method for changing single-width into double-width beam erection of integral bridge span |
| CN111809531B (en) * | 2020-07-30 | 2022-03-25 | 中建三局集团有限公司 | Pushing type bridge girder erection machine and girder erection method thereof |
| CN112411380B (en) * | 2020-09-27 | 2023-11-14 | 中铁城建集团有限公司 | Construction method for connecting prefabricated boxes Liang Duoji to hoist and span river |
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2009
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| CN101476292A (en) | 2009-07-08 |
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