CN104179123A - Bridge fabrication machine capable of building and assembling two bridge segments - Google Patents
Bridge fabrication machine capable of building and assembling two bridge segments Download PDFInfo
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- CN104179123A CN104179123A CN201410422238.3A CN201410422238A CN104179123A CN 104179123 A CN104179123 A CN 104179123A CN 201410422238 A CN201410422238 A CN 201410422238A CN 104179123 A CN104179123 A CN 104179123A
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Abstract
The invention belongs to the technical field of bridge construction and discloses a bridge fabrication machine capable of building and assembling two bridge segments. The bridge fabrication machine is characterized in that a main beam of the bridge fabrication machine adopts two horizontal truss structure sets, each truss structure set comprises two integrally crossed main truss and a short tail truss segment, a lower joist system is arranged on the lower portion of each the main truss, supporting wheel trains are arranged below the truss structures to support on bridge span piers to be built, and girder cranes are arranged upon the truss structures and longitudinally move along the trusses. The bridge fabrication machine is characterized in that box girder segments preset in a girder fabrication yard beside a bridge site are adopted and conveyed to the tail portion of the bridge fabrication machine by a girder conveying vehicle, then the girder cranes hoist the girder segments in places, concrete wet joints are cast, pre-stressed tendons are tensed to form the bridge, and the bridge fabrication machine punches. The bridge fabrication machine has the advantages such that bearing load is high, two bridge segments are achieved by one punching, construction period is shortened, and construction cost is low and is suitable to construction of simple-supported box girder bridges on high speed railways, passenger special lines or expressways having span of 40m or above.
Description
Technical field
The invention belongs to bridge construction technical field.
Background technology
Current both at home and abroad section box girder assembling bridge manufacturing machine, conventionally by a job across forming with front (afterwards) nose girder, in work, step up placing box girder segment, the concreting seam that wets, tensioned prestressing bar, completes the making of a bridge beam.It is large that this class bridge fabrication machine can be made span, and the bridge of beam body weight, is widely used in the bridge construction at 40m with upper span.But this type of bridge fabrication machine at every turn can only assembling construction one bridge beam, the via hole of bridge fabrication machine reach afterwards, carries out the section box girder consolidation service in next hole, and its shortcoming is that the construction period is long, the bridging task that completes a bridge beam on average needs ten days above time, and cost is relatively high.
Summary of the invention
The object of the invention is: provide a kind of two Kong Lian to do section assembling bridge manufacturing machine, it can complete the bridging work of two hole case beams after a via hole is in place simultaneously.
Technical scheme of the present invention is: by girder 1, subiculum girder system system 2, front fulcrum support roller be 3, central bearing point support roller is 4, front leg strut 5, rear fulcrum crossbeam 6, bale handle loop wheel machine 7 etc. partly form.
Bridge fabrication machine girder 1 adopt two groups parallel two whole across main couple 11 and a pipe nipple afterbody truss 12; Joist system 2 is set in main couple bottom; It is 3,4 to be bearing in and to treat on bridging bridge pier that support roller is established in truss below; Truss top is provided with along the longitudinal traveling bale handle of truss loop wheel machine 7.
Girder truss is two-piece type structure, by chord member of truss, brace, montant and connection structure spelling group, is formed; Girder truss is two Span Continuous beam types when via hole, and during bridging, by the connecting pin 13 of mid-span place upper chord before and after disassembling, bridge fabrication machine girder truss forms two across simply supported beam independently.Between two groups of truss front across front end, after across front end, after across rear end, by front leg strut crossbeam 51, intermediate transverse girder 8, rear fulcrum crossbeam 6, be connected respectively.
Across 121 front end bottoms, to establish front fulcrum support roller be 3 to main couple 12 front, and it is 4 that mid-span place, front and back establishes central bearing point support roller in bottom, and support roller system is bearing in and treats on bridging bridge pier, for the traveling of via hole bridge fabrication machine provides rolling bearing; After via hole puts in place, before front, central bearing point support roller system converts to, central bearing point, the weight of box girder segment and wet seam while bearing bridging; Front fulcrum can move after main couple, to adapt to the bridging needs of different spans.After main couple 12, across the rear fulcrum crossbeam 6 of 122 rear ends, be bearing in and make case beam end, as the heavily loaded rear fulcrum of bridge fabrication machine, rear fulcrum can move forward along main couple, to adapt to the bridging needs of different spans.Main couple front end is established front leg strut 5, for auxiliary bridge fabrication machine via hole.
Subiculum girder system system 2 is connected to form by beam in length and breadth, and lower joist crossbeam 21 be split type, middlely by bolt, steel pin, links into an integrated entity, and crossbeam two ends are connected with both sides main truss respectively, during via hole, disassembles connection in the middle part of crossbeam, and crossbeam can be dug and dodge bridge pier along both sides; Lower joist longeron 22 is along main truss direction layout, and two ends are connected with crossbeam 21, establish leading screw or hydraulic jacking device 23 on longeron, linear in order to regulating box beam.
Bale handle loop wheel machine 7 is portal crane, can, along the two longitudinal travelings of walking rails across main truss 12 and afterbody truss 11 tops, realize the function that hoisting beam saved and put at bridge fabrication machine belly beam joint from Beam transportation vehicle 9.
The invention has the beneficial effects as follows: adopt the other beam of bridge site field precast box girder segment, Beam transportation vehicle transports beam joint and arrives bridge fabrication machine afterbody, and it is in place that bale handle loop wheel machine hangs beam joint the concreting seam that wets, tensioned prestressing bar Cheng Qiao, the bridging mode of bridge fabrication machine via hole.Have bearing load large, one time via hole is made two bridge beams simultaneously, saves the duration, and the feature such as reducing the construction costs is applicable to high-speed railway, Line for Passenger Transportation or speedway 40m and with the bridging work of upper span simple supported box beam bridge.
Accompanying drawing explanation
Fig. 1 is bridge fabrication machine elevational schematic view;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the C-C sectional view of Fig. 1;
Fig. 5 is the D-D sectional view of Fig. 1;
Fig. 6 is girder truss elevational schematic view;
Fig. 7 A is subiculum girder system system front view;
Fig. 7 B is subiculum girder system system top view;
Fig. 7 C is subiculum girder system system lateral view;
Fig. 8 A, B, C, D, E, F, G, H, I, J are bridge fabrication machine bridging, via hole operation procedure schematic diagram.
The specific embodiment
Embodiment 1
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Fig. 1,2,3,4,5, the 1st, girder, the 2nd, subiculum girder system system, the 3rd, front fulcrum support roller system, the 4th, central bearing point support roller system, the 5th, front leg strut, the 6th, rear fulcrum crossbeam, the 7th, bale handle loop wheel machine, the 8th, intermediate transverse girder, the 9th, Beam transportation vehicle, the 51st, front leg strut crossbeam.
As shown in Figure 6, the 11st, main couple, the 12nd, pipe nipple afterbody truss, the 13rd, the main truss steel pin that winds up.
21 is lower joist crossbeams, the 22nd as shown in Figure 7, lower joist longeron, the 23rd, leading screw or hydraulic jacking device.
By girder 1, subiculum girder system system 2, front fulcrum support roller be 3, central bearing point support roller is 4, front leg strut 5, rear fulcrum crossbeam 6, bale handle loop wheel machine 7 etc. partly form.Bridge fabrication machine girder 1 adopt two groups parallel two whole across main couple 11 and a pipe nipple afterbody truss 12; Joist system 2 is set in main couple bottom; It is 3,4 to be bearing in and to treat on bridging bridge pier that support roller is established in truss below; Truss top is provided with along the longitudinal traveling bale handle of truss loop wheel machine 7.
Girder truss is two-piece type structure, by chord member of truss, brace, montant and connection structure spelling group, is formed; Girder truss is two Span Continuous beam types when via hole, and during bridging, by the connecting pin 13 of mid-span place upper chord before and after disassembling, bridge fabrication machine girder truss forms two across simply supported beam independently.Between two groups of truss front across front end, after across front end, after across rear end, by front leg strut crossbeam 51, intermediate transverse girder 8, rear fulcrum crossbeam 6, be connected respectively.
Across 121 front end bottoms, to establish front fulcrum support roller be 3 to main couple 12 front, and it is 4 that mid-span place, front and back establishes central bearing point support roller in bottom, and support roller system is bearing in and treats on bridging bridge pier, for the traveling of via hole bridge fabrication machine provides rolling bearing; After via hole puts in place, before front, central bearing point support roller system converts to, central bearing point, the weight of box girder segment and wet seam while bearing bridging; Front fulcrum can move after main couple, to adapt to the bridging needs of different spans.After main couple 12, across the rear fulcrum crossbeam 6 of 122 rear ends, be bearing in and make case beam end, as the heavily loaded rear fulcrum of bridge fabrication machine, rear fulcrum can move forward along main couple, to adapt to the bridging needs of different spans.Main couple front end is established front leg strut 5, for auxiliary bridge fabrication machine via hole.
Subiculum girder system system 2 is connected to form by beam in length and breadth, and lower joist crossbeam 21 be split type, middlely by bolt, steel pin, links into an integrated entity, and crossbeam two ends are connected with both sides main truss respectively, during via hole, disassembles connection in the middle part of crossbeam, and crossbeam can be dug and dodge bridge pier along both sides; Lower joist longeron 22 is along main truss direction layout, and two ends are connected with crossbeam 21, establish leading screw or hydraulic jacking device 23 on longeron, linear in order to regulating box beam.
Bale handle loop wheel machine 7 is portal crane, can, along the two longitudinal travelings of walking rails across main truss 12 and afterbody truss 11 tops, realize the function that hoisting beam saved and put at bridge fabrication machine belly beam joint from Beam transportation vehicle 9.
The construction method that the present invention two Kong Lian do section assembling bridge manufacturing machine is as follows:
The bridging of three fulcrums supporting before, during and after A, bridge fabrication machine via hole complete after putting in place (being to form bearing by front, middle support roller), closed subiculum girder system, extract the main truss steel pin that winds up, before and after making, two hole main trusses form independently simply supported beam of two holes, avoid the linear control of main truss deformation effect adjacent holes bridge.
B, precast box girder segment are transported to bale handle loop wheel machine below, girder afterbody truss place by bridge floor Beam transportation vehicle, by bale handle loop wheel machine beam joint mention indulge away to front across, and by the order by after forward direction, beam joint is put on lower joist.
After C, front hole beam joint hang, carry out linear adjustment, build the follow-up works such as wet joint concrete, prestressed stretch-draw, meanwhile continue to hang metapore beam joint.
After D, metapore beam joint hang, carry out linear adjustment, build the follow-up works such as wet joint concrete, prestressed stretch-draw.
E, two Kong Liang have made rear beginning and have done via hole preparation: the rolling bearing function (withdrawing from the member that forms bearing) of recovering support roller system, insert the main truss steel pin that winds up and form the two continuous girders in hole, open subiculum girder system system (the lower joist of opening is as shown in side view), via hole crossbeam is installed on Beam transportation vehicle and is connected with girder afterbody truss.
F, Beam transportation vehicle hang slightly and raise and make rear fulcrum leave bridge floor, and Beam transportation vehicle slowly moves ahead and promotes complete machine via hole.
After G, the 40m that moves ahead, bale handle loop wheel machine is moved to bridge fabrication machine afterbody as counterweight, overturning stability and the required vertical pressure of Beam transportation vehicle while guaranteeing to continue via hole.
H, continue the 24m that moves ahead, girder front end, to the place ahead bridge pier, is accomplished fluently front leg strut, utilizes bale handle loop wheel machine that afterbody support roller system is winched to front square pier top installation in position, completes the first hole via hole operation.
I, by the via hole program in the first hole, carry out the second hole via hole.
After J, the second hole via hole complete, close subiculum girder system, carry out bridging preparation, start lower two hole bridgings.
1, girder: girder 1 comprises two groups of parallel trussed constructions, every group of trussed construction wholely forms a whole across main couple 11 and a pipe nipple afterbody truss 12 by two; Every group of truss is two-piece type structure, by chord member of truss, brace, montant and connection structure spelling group, formed; Girder truss is two Span Continuous beam types when via hole, and during bridging, by the connecting pin 13 of mid-span place upper chord before and after disassembling, bridge fabrication machine girder truss forms two across simply supported beam independently.Between two groups of truss front across front end, after across front end, after across rear end, by front leg strut crossbeam 51, intermediate transverse girder 8, rear fulcrum crossbeam 6, be connected respectively, form a stable space structures.
2, lower joist: subiculum girder system system 2 is connected to form by beam in length and breadth, lower joist crossbeam 21 is split type, centre links into an integrated entity by bolt, steel pin, crossbeam two ends are connected with both sides main truss respectively, during via hole, disassemble crossbeam middle part and connect, crossbeam can be dug and dodge bridge pier along both sides, and the rotary movement of crossbeam is realized by hydraulic system; Lower joist longeron 22 is along main truss direction layout, and two ends are connected with crossbeam 21, establish leading screw or hydraulic jacking device 23 on longeron, linear in order to regulating box beam.
3, supporting system: at bridging state and via hole state, bridge fabrication machine adopts two cover supporting systems.At bridging state, before bridge fabrication machine is bearing in by front fulcrum (being 3 to convert by front fulcrum support roller) across the place ahead bridge pier, before being bearing in by central bearing point (being 4 to convert by central bearing point support roller), across rear bridge pier, after being bearing in by rear fulcrum crossbeam 6, across rear, made case top surface of the beam; At via hole state, before, during and after bridge fabrication machine, 3 is 4 and Beam transportation vehicle via hole beam supporting by front fulcrum support roller system, 3 central bearing point support rollers respectively, during via hole, bridge fabrication machine often move ahead one whole across, need to, by front leg strut 5 temporary supports in the place ahead bridge pier, then last support roller system be moved forward to the place ahead bridge pier.
4, bale handle loop wheel machine: bale handle loop wheel machine is partly comprised of portal-framed structure, cart walking system, hoisting system, electrical control system etc., for the lifting of box girder segment.Wherein portal-framed structure is mainly by girder, and end floor beam, upright supporting leg and lower transverse beam form; Cart walking system You Sizu cart walking mechanism forms, and Mei Zu cart walking mechanism is comprised of principal and subordinate wheel group assembly, and cart walking adopts single track form, and variable-frequency motor drives, and opens braking and impacts little; Hoisting system is comprised of two hoist engines, fixed pulley group, running block and suspender.
5, via hole mode: made after two bridges, recovered the rolling bearing function of support roller system, inserted the main truss steel pin 13 that winds up and form the two continuous girders in hole, opened subiculum girder system system 2, via hole crossbeam has been installed on Beam transportation vehicle 9 and is connected with girder afterbody truss 11; Beam transportation vehicle 9 hangs slightly and raises and make rear fulcrum leave bridge floor, and Beam transportation vehicle 9 slowly moves ahead and promotes complete machine via hole; Move ahead after 40m bale handle loop wheel machine 7 is moved to bridge fabrication machine afterbody as counterweight, overturning stability and the required vertical pressure of Beam transportation vehicle while guaranteeing to continue via hole; Continue the 24m that moves ahead, girder front end arrives the place ahead bridge pier, accomplishes fluently front leg strut 5, utilizes bale handle loop wheel machine 7 that afterbody support roller system is winched to front square pier top installation in position, completes the first hole via hole operation; By the via hole program in the first hole, carry out the second hole via hole; After the second hole via hole completes, close subiculum girder system 2, carry out bridging preparation, start lower two hole bridgings.
Claims (5)
1. a Kong Lian does section assembling bridge manufacturing machine, it is characterized in that: bridge fabrication machine girder adopt two groups parallel two whole across main couple and a pipe nipple afterbody truss, joist system is set in main couple bottom, it is to be bearing in to treat on bridging bridge pier that support roller is established in truss below, and truss top is provided with along the longitudinal traveling bale handle of truss loop wheel machine.
2. a kind of two Kong Lian as claimed in claim 1 do section assembling bridge manufacturing machine, it is characterized in that: girder truss is two-piece type structure, by chord member of truss, brace, montant and connection structure spelling group, formed, bridge fabrication machine girder truss forms two across simply supported beam independently, between two groups of truss front across front end, after across front end, after across rear end, by front leg strut crossbeam, intermediate transverse girder, rear fulcrum crossbeam, be connected respectively.
3. a kind of two Kong Lian as claimed in claim 1 do section assembling bridge manufacturing machine, it is characterized in that: main couple is established front fulcrum support roller system front across front end bottom, central bearing point support roller system is established in bottom, mid-span place, front and back, and support roller system is bearing in and treats on bridging bridge pier, for the traveling of via hole bridge fabrication machine provides rolling bearing; After via hole puts in place, before front, central bearing point support roller system converts to, central bearing point, the weight of box girder segment and wet seam while bearing bridging; Front fulcrum can move after main couple, and the rear fulcrum beam supporting across rear end after main couple is being made case beam end, and as the heavily loaded rear fulcrum of bridge fabrication machine, rear fulcrum moves forward along main couple, and main couple front end is established front leg strut, for auxiliary bridge fabrication machine via hole.
4. a kind of two Kong Lian as claimed in claim 1 do section assembling bridge manufacturing machine, it is characterized in that: subiculum girder system system is connected to form by beam in length and breadth, lower joist crossbeam is split type, centre links into an integrated entity by bolt, steel pin, crossbeam two ends are connected with both sides main truss respectively, during via hole, disassemble crossbeam middle part and connect, crossbeam is dug and is dodged bridge pier along both sides; Lower joist longeron is along main truss direction layout, and two ends are connected with crossbeam, establish leading screw or hydraulic jacking device on longeron, linear in order to regulating box beam.
5. a kind of two Kong Lian as claimed in claim 1 do section assembling bridge manufacturing machine, it is characterized in that: bale handle loop wheel machine is portal crane, along the two longitudinal travelings of walking rails across main truss and afterbody truss top, realize the function that hoisting beam saved and put at bridge fabrication machine belly beam joint from Beam transportation vehicle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410422238.3A CN104179123A (en) | 2014-08-26 | 2014-08-26 | Bridge fabrication machine capable of building and assembling two bridge segments |
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| CN201410422238.3A CN104179123A (en) | 2014-08-26 | 2014-08-26 | Bridge fabrication machine capable of building and assembling two bridge segments |
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Cited By (6)
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| CN105648919A (en) * | 2016-01-18 | 2016-06-08 | 中国铁建大桥工程局集团有限公司 | Precast segment double-span circulating assembly construction method for prestressed concrete bridge |
| CN106522096A (en) * | 2016-10-09 | 2017-03-22 | 张小东 | Curved incremental launching construction technology for 48m-long-span railway simply-supported box girders and high piers |
| CN110258352A (en) * | 2019-07-31 | 2019-09-20 | 河南省交通规划设计研究院股份有限公司 | The steel reinforced concrete combined bridge construction method that two bridgings are done |
| CN110344334A (en) * | 2019-07-31 | 2019-10-18 | 河南省交通规划设计研究院股份有限公司 | Steel reinforced concrete combined bridge construction method is done using two bridgings of dorsal funciculus formula Bridge Erector |
| CN113136810A (en) * | 2021-05-26 | 2021-07-20 | 中交第二航务工程局有限公司 | Bridge girder erection machine for integral erection construction of superstructure of long-span bridge and construction method |
| CN115467239A (en) * | 2022-09-28 | 2022-12-13 | 河南省交通规划设计研究院股份有限公司 | Method for constructing long-span steel-concrete composite beams based on bridge erecting machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105648919A (en) * | 2016-01-18 | 2016-06-08 | 中国铁建大桥工程局集团有限公司 | Precast segment double-span circulating assembly construction method for prestressed concrete bridge |
| CN106522096A (en) * | 2016-10-09 | 2017-03-22 | 张小东 | Curved incremental launching construction technology for 48m-long-span railway simply-supported box girders and high piers |
| CN110258352A (en) * | 2019-07-31 | 2019-09-20 | 河南省交通规划设计研究院股份有限公司 | The steel reinforced concrete combined bridge construction method that two bridgings are done |
| CN110344334A (en) * | 2019-07-31 | 2019-10-18 | 河南省交通规划设计研究院股份有限公司 | Steel reinforced concrete combined bridge construction method is done using two bridgings of dorsal funciculus formula Bridge Erector |
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| CN113136810A (en) * | 2021-05-26 | 2021-07-20 | 中交第二航务工程局有限公司 | Bridge girder erection machine for integral erection construction of superstructure of long-span bridge and construction method |
| CN115467239A (en) * | 2022-09-28 | 2022-12-13 | 河南省交通规划设计研究院股份有限公司 | Method for constructing long-span steel-concrete composite beams based on bridge erecting machine |
| CN115467239B (en) * | 2022-09-28 | 2024-12-13 | 河南省交通规划设计研究院股份有限公司 | Method for constructing long-span steel-concrete composite beams based on bridge erection machine |
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Application publication date: 20141203 |