CN102433842A - Construction method for erecting thin-wall U-shaped girder of rail transit - Google Patents
Construction method for erecting thin-wall U-shaped girder of rail transit Download PDFInfo
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- CN102433842A CN102433842A CN2011104489032A CN201110448903A CN102433842A CN 102433842 A CN102433842 A CN 102433842A CN 2011104489032 A CN2011104489032 A CN 2011104489032A CN 201110448903 A CN201110448903 A CN 201110448903A CN 102433842 A CN102433842 A CN 102433842A
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Abstract
Aiming at solving the problems when an elevated line of the rail transit is built in the prior art, the invention provides a construction method for erecting a thin-wall U-shaped girder of the rail transit. The method has the advantages that the thin-wall U-shaped girder can be erected in case of incomplete operation site, and the mutual restrain and influence with the lower environment can be avoided. Basically, only small quantity of girder charging points (ground fixing sites) of the thin-wall U-shaped girder and the thin-wall U-shaped girder are needed when the thin-wall U-shaped girder is erected by the construction method.
Description
Technical field
The present invention relates to the thin wall U-shaped beam erection construction method of track traffic.
Background technology
At present in the construction of the construction of carrying out track traffic; Run in the time of to carry out overhead construction; Conventional way is to carry out the construction of bridge column earlier along the line, and then carries out the lifting of case beam, must get through defeated road of a row replacement labour movement and erection equipment stopping spot along the line in advance.The case beam transports the scene to, after crawler crane or the straddle truck lifting, and hoisted in position.Must one stride a transfer with crawler crane lifting, and gantry crane lifting can lift some striding on road along the line, areal lifting back.It is more that the shortcoming of this type hanging method is to take social public land, and (haul road of general parallel circuit about 7m that has a lot of social connections, the wide at least 12m of builder's road adds up and wants about 20m.The straddle truck construction can also be wanted about 15m in a little little point estimation.) and run into the river, roads etc. will be greatly to test to the construction transport routes.Run into the river and must bridging perhaps fill out the river; Certainly preferably fill out the river; Fill out behind the river construction equipment lifting of can getting on, and bridging must be considered construction equipment and this body weight of case beam, in general case beam weight is generally about 300 tons; Possibly surpass 400 tons individually, this requirement to bridge will be high especially also.Running into Ordinary Rd can utilize the lifting at night through suitable road closure, and run into closed highway and also will open up corresponding bypass except road closure, the formality trouble, influence surface is bigger.Also to comprise equipment simultaneously and shift the work of crossing the river, passing by on one's way.Conventional way must be opened up a parallel builder's road (comprising transport routes) on construction circuit limit.This is quite huge task to whole engineering construction, must double expropriation of land and remove, and influence surface is bigger.
Designed and developed a kind of thin wall U-shaped beam in recent years, the thin wall U-shaped beam good looking appearance, distinctive U type design of section makes the beam profile look elegant in appearance, and is very light and handy.Equally heavy unlike normal concrete beams, rational in infrastructure, at the bottom of the beam and the side board general thickness be 250mm, look basically just as a plate, and the rigidity of whole beam is provided with the common combination of base plate by side board, economical and practical.Beam is accomplished with crashproof wall in the future simultaneously, has practiced thrift a large amount of concrete materials, concerning whole circuit cost, has practiced thrift cost.Therefore job practices how to utilize the own characteristic exploitation of thin wall U-shaped beam to make new advances is with the problem of taking up an area of in the elevated line that solves present construction track traffic.
Summary of the invention
The objective of the invention is to solve in the prior art existing the problems referred to above when building the elevated line of track traffic, a kind of thin wall U-shaped beam erection construction method of track traffic is provided.The present invention designs the thin wall U-shaped beam erection construction method of track traffic, comprises the column of having accomplished in construction along the line, it is characterized in that being made up of following construction sequence:
(1) fixed point is put the beams in place; In the construction suitable upper beam place, a place of seeking along the line; Described upper beam place has following condition (A) with social road good intersection to be arranged; Society's road must satisfy thin wall U-shaped beam and transport the scene to from the element precast field; (B) the upper beam point satisfies the assembling of lifting beam machine equipment; Described lifting beam machine is conventional crane, like crawler crane, straddle truck etc.
(2) transport beam on the beam; (A) steel rail laying on the parallel two thin wall U-shaped beams that set up; (B) fortune beam dolly straddles on twin beams; The roller of fortune beam dolly drops on respectively on the rail of parallel two thin wall U-shaped beams layings, (C) will rise to from the thin wall U-shaped beam that social road transport comes on the fortune beam dolly with lifting beam machine, and (D) fortune beam dolly is transported to the parallel two thin wall U-shaped beams bridge formation machine foremost that has set up along the parallel two thin wall U-shaped beams that set up;
(3) bridge frame beam changes voluntarily and strides, and (A) the bridge formation machine is sling thin wall U-shaped beam with mobile hanging beam; Moving hanging beam then moves forward along the bridge formation machine; Thin wall U-shaped beam is set up on the column that completion is not striden, and (B) the bridge formation machine thin wall U-shaped beam reach of setting up along step (A) moves on to the forward foot in a step of bridge formation machine and nextly accomplishes on the column of striding; Repeating step (2) and (a 3) thin wall U-shaped beam to the last sets up completion, removes fortune beam dolly and bridge formation machine.Advantage of the present invention is can solve under the incomplete situation in site operation place, accomplishes thin wall U-shaped beam and sets up work, avoids mutual restriction and influence with the bottom environment.Basically using this patent to set up thin wall U-shaped beam only needs a spot of thin wall U-shaped beam upper beam point (fixed bottom boundary place) and thin wall U-shaped beam self to get final product.
Description of drawings
Fig. 1 is the sketch map of lifting beam machine lifting thin wall U-shaped beam of the present invention.
Fig. 2 is the sketch map of fortune beam dolly fortune beam of the present invention, and Fig. 3 is the side schematic view of Fig. 2.
Fig. 4, Fig. 5 be bridge formation frame beam of the present invention sketch map.
Fig. 6, Fig. 7, Fig. 8 are for crossing the sketch map of striding behind the bridge formation frame beam of the present invention.
Below in conjunction with accompanying drawing and construction embodiment the present invention is made detailed operation instruction.
The specific embodiment
(1) fixed point is put the beams in place; In the construction suitable upper beam place, a place of seeking along the line; Described upper beam place has following condition (A) with social road good intersection to be arranged; Society's road must satisfy thin wall U-shaped beam and transport the scene to from the element precast field; (B) the upper beam point satisfies the assembling of lifting beam machine equipment; Described lifting beam machine is conventional crane, like crawler crane, straddle truck etc.
(2) transport beam on the beam; (A) steel rail laying on the parallel two thin wall U-shaped beams that set up; (B) fortune beam dolly straddles on twin beams; The roller of fortune beam dolly drops on respectively on the rail of parallel two thin wall U-shaped beams layings, (C) will rise to from the thin wall U-shaped beam that social road transport comes on the fortune beam dolly with lifting beam machine, and (D) fortune beam dolly is transported to the parallel two thin wall U-shaped beams bridge formation machine foremost that has set up along the parallel two thin wall U-shaped beams that set up;
(3) bridge frame beam changes voluntarily and strides, and (A) the bridge formation machine is sling thin wall U-shaped beam with mobile hanging beam; Moving hanging beam then moves forward along the bridge formation machine; Thin wall U-shaped beam is set up on the column that completion is not striden, and (B) the bridge formation machine thin wall U-shaped beam reach of setting up along step (A) moves on to the forward foot in a step of bridge formation machine and nextly accomplishes on the column of striding; Repeating step (2) and (a 3) thin wall U-shaped beam to the last sets up completion, removes fortune beam dolly and bridge formation machine.
An embodiment, the part bid section of certain track traffic is an example, the construction environment that novel thin wall U-shaped beam is installed is complicated, the job site condition is poor, on-the-spot disturb big, on stride many river courses and crossing, wherein part has the navigation requirement.Under complex environment like this, need carry out so large-scale beam body and set up, under corresponding construction operating mode, carry out the emphasis consideration various hoisting.Therefore to above-mentioned technological difficulties and characteristics, we are through comparison and selection repeatedly, and the method that final decision is adopted is: the construction technology of " fixed point is put the beams in place, and transports beam on the beam, and bridge frame beam changes voluntarily and strides ".The Liang Shangyun of novel thin wall U-shaped beam, the complete construction technology of setting a roof beam in place be supporting to have " three large equipments " such as straddle truck, fortune beam dolly, bridge formation machines; Put the beams in place through the straddle truck fixed point; Transport beam on the wheel-track type fortune beam craneway, bridge formation frame beam is implemented the installation of novel thin wall U-shaped beam.Its main characteristic is exactly " transporting beam on the beam ", manifests the incomplete problem in construction plant thereby solved.
" fixed point is put the beams in place " is exactly that its ground point selection must have following characteristics or requirement in the construction suitable upper beam place, a place of seeking along the line.1. with social road good intersection is arranged, social road must satisfy thin wall U-shaped beam and transport the scene to from the element precast field; 2. the point of putting the beams in place satisfies the assembling of lifting beam machine equipment; 3. words upper beam point with good conditionsi can carry out a small amount of thin wall U-shaped beam and stack; 4. putting the beams in place point at interval should not be near excessively; Also should not be far away excessively, there is not social road transport convenient owing to be transported to the end on the beam, travelling bogie can not be fast as automobile; Restricted the set-up time of every thin wall U-shaped beam; And to build the fixing point of putting the beams in place also be a no small engineering, and the point selection of therefore putting the beams in place also will be passed through and deliberated repeatedly, and selects spacing to want suitably.After reserving, " fixed point is put the beams in place " point just must consideration how to put the beams in place.Put the beams in place and generally can use conventional crane, like crawler crane, straddle truck etc., key is seen the road and the environment of the point of putting the beams in place, and selects the suitable equipment of discussing.
" transport beam on the beam ", inferior step is this patent characteristic, and through inferior step, key has solved all unpredictable problem of bringing owing to transport routes inconvenience, solves transportation problem on the simple relatively beam to complicated originally ground transport problem.It is many that the ground transport problem often involves every aspect, should not coordinate, and dilatory easily; And transportation problem only needs basically to dicide after discussion in the limited ranges such as owner, design, construction, management and gets final product on the beam; Concern is little, easy coordination, and also social influence is little.The equipment of " transporting beam on the beam " and being mainly concerned with is fortune beam dolly on the beam, and this step has following requirement in operating process.1. the design of fortune beam dolly is relatively more crucial, consider to transport beam dolly form.Fortune beam dolly form mainly is to consider that the dolly wheel load is to set up the influence of thin wall U-shaped beam; In general on the thin wall U-shaped beam from now on the walking vehicle basically than thin wall U-shaped beam from heavy and light; Therefore the wheel load problem is relatively to be critical in fact; Can arrange through dolly and solve, on No. 16 lines, adopt the method for twin beams transportation single-beam to reduce the influence of working load thin wall U-shaped beam like us.2. dynamical problem generally adopts diesel-driven generator to drive motor-driven carrier, can transportation be provided long transmission line like this; 3. trolley track goes and generally should select the rail formula for use, and the rail formula need be buried fixedly rail of built-in fitting in advance underground on the U beam.
" bridge frame beam changes voluntarily and strides ", it mainly is to construct through the bridge formation machine that thin wall U-shaped beam sets up, the construction of bridge formation machine mainly is divided into 2 little branches.The one, set a roof beam in place the stage; The 2nd, transition phase.The stage of setting a roof beam in place mainly be with the thin wall U-shaped beam that transportation on the fortune beam dolly on the beam comes set up successively accomplish do not stride in, all accomplish and carry out transition phase after thin wall U-shaped beam sets up when striding, repeat then to set up, transfer step, accomplish the work of setting up of whole circuit.Its stage mainly contains following main points.1. the compound and checking computations of the bridge formation machine strong point, bridge formation machine body has certain weight, adds the weight of thin wall U-shaped beam to be installed, substructure is had necessarily check calculation requirement; 2. shift the influence of each fulcrum of operating mode to substructure, it is that big cantilever is crossed and striden that the bridge formation machine shifts, and stressed to central bearing point is bigger, must check calculating; 3. circuit has curve linear, and equipment must satisfy curve and set up needs; 4. the bridge formation machine shifts and needn't rely on all the other equipment, and only self just can accomplish.
The present invention introduces the job practices of setting a roof beam in place on the thin wall U-shaped beam beam; Obtain practice at rail line; It is just considerable only to practice thrift site use fees; We borrow about ground 200m (width 30-40 rice) cost about 1,500,000 at present, if borrow completely ground then light field ground usage charges be not that Construction unit can bear just.
Claims (1)
1. the thin wall U-shaped beam erection construction method of track traffic comprises the column of having accomplished in construction along the line, it is characterized in that being made up of following construction sequence:
(1) fixed point is put the beams in place; In the construction suitable upper beam place, a place of seeking along the line; Described upper beam place has following condition (A) with social road good intersection to be arranged; Society's road must satisfy thin wall U-shaped beam and transport the scene to from the element precast field; (B) the upper beam point satisfies the assembling of lifting beam machine equipment; Described lifting beam machine is conventional crane, like crawler crane, straddle truck etc.
(2) transport beam on the beam; (A) steel rail laying on the parallel two thin wall U-shaped beams that set up; (B) fortune beam dolly straddles on twin beams; The roller of fortune beam dolly drops on respectively on the rail of parallel two thin wall U-shaped beams layings, (C) will rise to from the thin wall U-shaped beam that social road transport comes on the fortune beam dolly with lifting beam machine, and (D) fortune beam dolly is transported to the parallel two thin wall U-shaped beams bridge formation machine foremost that has set up along the parallel two thin wall U-shaped beams that set up;
(3) bridge frame beam changes voluntarily and strides, and (A) the bridge formation machine is sling thin wall U-shaped beam with mobile hanging beam; Moving hanging beam then moves forward along the bridge formation machine; Thin wall U-shaped beam is set up on the column that completion is not striden, and (B) the bridge formation machine thin wall U-shaped beam reach of setting up along step (A) moves on to the forward foot in a step of bridge formation machine and nextly accomplishes on the column of striding; Repeating step (2) and (a 3) thin wall U-shaped beam to the last sets up completion, removes fortune beam dolly and bridge formation machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104489032A CN102433842A (en) | 2011-12-29 | 2011-12-29 | Construction method for erecting thin-wall U-shaped girder of rail transit |
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| CN2011104489032A CN102433842A (en) | 2011-12-29 | 2011-12-29 | Construction method for erecting thin-wall U-shaped girder of rail transit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677633A (en) * | 2012-05-15 | 2012-09-19 | 中国葛洲坝集团股份有限公司 | Hanging and steering device and method for prefabricated straining beam of U-shaped aqueduct |
| CN103132459A (en) * | 2013-03-01 | 2013-06-05 | 中铁十七局集团第三工程有限公司 | Method for picking beams of beam lifting and carrying machine for railway bridging |
| CN107285209A (en) * | 2017-07-04 | 2017-10-24 | 杭州江润科技有限公司 | A kind of Novel U-shaped erection equipment and its operating method |
| CN107524091A (en) * | 2017-09-09 | 2017-12-29 | 中建八局第三建设有限公司 | The constructing device and its construction method of erection of precast beams are carried out on existing road |
| CN111139743A (en) * | 2019-12-26 | 2020-05-12 | 中铁十七局集团第三工程有限公司 | Method for improving speed of highway beam frame and installation method of gantry crane |
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| CN201058969Y (en) * | 2007-07-09 | 2008-05-14 | 郑州市华中建机有限公司 | Novel bridging machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677633A (en) * | 2012-05-15 | 2012-09-19 | 中国葛洲坝集团股份有限公司 | Hanging and steering device and method for prefabricated straining beam of U-shaped aqueduct |
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| CN103132459B (en) * | 2013-03-01 | 2015-03-11 | 中铁十七局集团第三工程有限公司 | Method for picking beams of beam lifting and carrying machine for railway bridging |
| CN107285209A (en) * | 2017-07-04 | 2017-10-24 | 杭州江润科技有限公司 | A kind of Novel U-shaped erection equipment and its operating method |
| CN107285209B (en) * | 2017-07-04 | 2018-09-14 | 杭州江润科技有限公司 | A kind of Novel U-shaped erection equipment and its operating method |
| CN107524091A (en) * | 2017-09-09 | 2017-12-29 | 中建八局第三建设有限公司 | The constructing device and its construction method of erection of precast beams are carried out on existing road |
| CN111139743A (en) * | 2019-12-26 | 2020-05-12 | 中铁十七局集团第三工程有限公司 | Method for improving speed of highway beam frame and installation method of gantry crane |
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Application publication date: 20120502 |