CN105672133A - Construction method for erecting steel tube stiff bridge framework through asymmetric lifting - Google Patents

Construction method for erecting steel tube stiff bridge framework through asymmetric lifting Download PDF

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Publication number
CN105672133A
CN105672133A CN201610052926.4A CN201610052926A CN105672133A CN 105672133 A CN105672133 A CN 105672133A CN 201610052926 A CN201610052926 A CN 201610052926A CN 105672133 A CN105672133 A CN 105672133A
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China
Prior art keywords
bridge
bank
lifting
skeleton
east
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Granted
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CN201610052926.4A
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Chinese (zh)
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CN105672133B (en
Inventor
李豪
闫川川
廖云昭
邓晓峰
周永峰
徐亮
黄冰
陈伟
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China Railway Guangzhou Engineering Bureau Group Co Ltd
China Railway Guangzhou Engineering Bureau Group Second Engineering Co., Ltd.
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SECOND Co Ltd OF CHINA RAILWAY PORT CHANNEL ENGINEERING GROUP
CHINA RAILWAY PORT AND CHANNEL ENGINEERING GROUP Co Ltd
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Application filed by SECOND Co Ltd OF CHINA RAILWAY PORT CHANNEL ENGINEERING GROUP, CHINA RAILWAY PORT AND CHANNEL ENGINEERING GROUP Co Ltd filed Critical SECOND Co Ltd OF CHINA RAILWAY PORT CHANNEL ENGINEERING GROUP
Priority to CN201610052926.4A priority Critical patent/CN105672133B/en
Publication of CN105672133A publication Critical patent/CN105672133A/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

The invention discloses a construction method for erecting a steel tube stiff bridge framework through asymmetric lifting. The construction method comprises the following steps that a lifting platform is erected on a slope of a valley on the east coast, a load-bearing cable is tensioned, a lifting tackle is arranged on the load-bearing cable, and a pulling cable and a lifting cable are arranged on the lifting tackle; cantilever segments are prefabricated; side spans of the bridge framework of the east coast and the west coast are erected symmetrically, when the side span of the bridge framework of the east coast is erected to the cantilever segment over the lifting platform, erecting of the side span of the bridge framework of the east coast is paused, the side span of the bridge framework of the west coast continues to be erected to the midspan, and the side span of the east coast and the side span of the west coast are about to be combined; and the rest of the cantilever segments of the side span of the bridge framework of the east coast are placed to the corresponding lifting positions, installed through the lifting tackle, and erected sequentially till the side span of the east coast and the side span of the west coast are combined. According to the construction method, by the adoption of the cantilever segment erecting method by combining symmetry with asymmetry, the construction period is shortened, the cost for erecting a horizontal platform and channels is reduced, and the problem that an overwater platform is difficult to erect is solved.

Description

A kind of construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton
Technical field
The present invention is used for technical field of bridge construction, particularly relates to a kind of construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton.
Background technology
China's arch bridge construction history is long, in ancient times with stone arch bridge for main bridge type, the today after industry fast development, adopts different materials, the arch bridge of different system have also been obtained and develops rapidly. In long-span arch bridge, when the steel pipe stiff skeleton in reinforced concrete arch bridge adopts cable crane air transport, Inclined cable-stayed erection by protrusion to set up, hanging method is generally symmetrical erection method, both little mileage, big mileage steel pipe stiff skeleton section correspondence section by section were set up, treat all cantilever stiff skeleton sections installations, wait that closure section is installed. Erection order is general sets up from skewback two ends to span centre symmetry, until all segmental erections complete, then waits and closing up in good time.
Existing symmetrical erection method, is only applicable to the hoisting platform Arch Bridge Construction in span centre position. Adopt symmetrical erection method, hoisting platform need to be set up in span centre position, and ensure that skeleton transport routes are unimpeded. Owing to Arch Bridge Construction major part is that general span centre position is all the center in mountain valley or river valley in the location crossing over mountain valley or river valley, putting up platform difficulty is big, and not only time-consuming, fund input is also huge.
Summary of the invention
For solving the problems referred to above, the present invention provides a kind of construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton, it saves the time on the duration, has saved the cost setting up levelling bench and passage economically, solves pier and set up a difficult problem for difficulty in difficulty of construction.
The technical solution adopted for the present invention to solve the technical problems is: a kind of construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton, comprises the following steps:
S10. in the side slope in bank river valley, east, hoisting platform is set up, hoisting platform is positioned at below bridge skeleton to be set up, and extended to center, river valley by the highway of east bank, above bridge skeleton to be set up in east bank and west bank between stretch-draw track cable, track cable arranges hanging pulley, has risen and hanging pulley arranges hauling rope and hoisting rope;
S20. the boom segments of prefabricated sliceable molding bridge skeleton, is transported on hoisting platform by boom segments by the highway of east bank;
S30. hanging pulley lifting boom segments has been passed through, the symmetrical bridge skeleton end bay setting up east bank, west bank, when the bridge skeleton end bay of bank of playing the host is inserted into the boom segments directly over hoisting platform, suspend the bridge skeleton end bay of erection east bank, the bridge skeleton end bay of west bank continues to be inserted into span centre, and wait is closed up;
S40. the east bank bridge remaining boom segments of skeleton end bay is put as corresponding lifting position, described lifting position is positioned at the river valley on bridge skeleton end bay immediately below respective cantilevered segmental erection position, lift remaining boom segments by playing hanging pulley, and set up until closing up successively.
Be further used as the improvement of technical solution of the present invention, described east bank, west bank bridge skeleton end bay all include 20 boom segments, the 13rd boom segments of the bridge skeleton end bay of east bank is positioned at the surface of described hoisting platform.
It is further used as the improvement of technical solution of the present invention, in step S40, when boom segments is put the lifting position as correspondence, first at the bottom of the river course in leveling river valley, then boom segments is deposited in river course by steel pipe base.
It is further used as the improvement of technical solution of the present invention, hoisting platform includes being located at the some artificial digging piles in the bank River Valley Slope of east, is located at the steel pipe column at each described artificial digging pile top, is located at the distribution beam at described steel pipe column top and is located at the Bailey beam at described distribution beam top, the platform that highway with east bank docks is formed on the top of described Bailey beam, and prefabricated bridge is laid at the top of Bailey beam.
Being further used as the improvement of technical solution of the present invention, described steel pipe intercolumniation is provided with connection system.
Being further used as the improvement of technical solution of the present invention, the bottom of described prefabricated bridge is provided with the limiting plate blocking described Bailey beam, and the top of described prefabricated bridge is provided with railing.
Being further used as the improvement of technical solution of the present invention, the position that described hoisting platform docks with highway is provided with concrete basis, and described concrete basis has the step of overlap joint Bailey beam end.
Beneficial effects of the present invention: the present invention by symmetry in conjunction with asymmetric boom segments erection method, avoid the putting up platform in span centre position, duration saves the time, save the cost setting up levelling bench and passage economically, difficulty of construction has solved pier and sets up a difficult problem for difficulty. The successful exploitation of the asymmetric construction method for hanging of steel pipe stiff skeleton, does not still guarantee the quality as scheduled and completes the erection of stiff skeleton, and saved substantial amounts of work on overlay amount, save duration and cost; The method of the asymmetric lifting construction that steel pipe stiff skeleton is taked, greatly reduces cable crane, pre-splicing field, transport channel, hoisting platform etc. and faces greatly the quantities of facility. Take full advantage of equipment, in practical application, shorten the duration about 6 months, accumulative saving cost about 45,000,000 yuan.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is structural representation after bridge skeleton integral erection of the present invention;
Fig. 2 is that hoisting platform of the present invention arranges structural representation;
Fig. 3 is hoisting platform side view of the present invention;
Fig. 4 is A-A place sectional view in Fig. 3.
Detailed description of the invention
Referring to figs. 1 through Fig. 4, that show the concrete structure of the preferred embodiments of the invention. Will be detailed below the construction features of each element of the present invention, and if when being described to direction (upper and lower, left and right, before and after), be describe with the structure shown in Fig. 1 for reference, but the actually used direction of the present invention be not limited thereto.
It is an object of the invention to a varied topography at the construction field (site), do not possess when hoisting platform is set up in span centre position, plan in advance, pier is become land platform. According to topographic features, Dong An highway limit with the side slope in river valley is set up hoisting platform (Section 13 section that skeleton is corresponding), but lifting space is restricted, bank of playing the host be inserted into after 13 sections residue sections cannot vertical lifting, so adopting asymmetric erection method after being inserted into 13 sections.
The invention provides a kind of construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton, comprise the following steps:
S10. in the side slope in bank river valley, east, hoisting platform 1 is set up, hoisting platform 1 is positioned at below bridge skeleton 2 to be set up, and extended to center, river valley by the highway 3 of east bank, above bridge skeleton 2 to be set up in east bank and west bank between stretch-draw track cable 4, track cable 4 arranges hanging pulley 5, has risen and hanging pulley 5 arranges hauling rope 6 and hoisting rope 7;
S20. the boom segments 8 of prefabricated sliceable molding bridge skeleton 2, described east bank, west bank bridge skeleton end bay all include 20 boom segments 8, whole bridge skeleton 2 amounts to 40 boom segments 8 needing lifting, is transported on hoisting platform 1 by boom segments 8 by the highway 3 of east bank;
S30. pass through hanging pulley 5 and lift boom segments 8, the symmetrical bridge skeleton end bay (1-13 boom segments) setting up east bank, west bank, the bridge skeleton end bay of bank of playing the host is inserted into boom segments 8(the 13rd boom segments directly over hoisting platform 1) time, suspend the bridge skeleton end bay of erection east bank, the bridge skeleton end bay of west bank continues to be inserted into span centre, and wait is closed up;
S40. by the east remaining boom segments 8(14-20 boom segments of bank bridge skeleton end bay) put as corresponding lifting position, described lifting position is positioned at the river valley on bridge skeleton end bay immediately below respective cantilevered segmental erection position, when boom segments 8 being put the lifting position as correspondence, first at the bottom of the river course in leveling river valley, then boom segments is deposited in river course by steel pipe base, lift remaining boom segments by playing hanging pulley 5, and set up until closing up successively.
Wherein, hoisting platform 1 includes being located at the some artificial digging piles 11 in the bank River Valley Slope of east, is located at the steel pipe column 12 at each described artificial digging pile 11 top, is located at the distribution beam 13 at described steel pipe column 12 top and is located at the Bailey beam 14 at described distribution beam 13 top, being provided with connection between described steel pipe column 12 is 15, increases overall structure stability. The platform that highway 3 with east bank docks is formed on the top of described Bailey beam 14, and the position that described hoisting platform 1 docks with highway 3 is provided with concrete basis 16, and described concrete basis 16 has the step of overlap joint Bailey beam 14 end. Prefabricated bridge 17 is laid at the top of Bailey beam 14. The bottom of described prefabricated bridge 17 is provided with the limiting plate 18 blocking described Bailey beam 14, and the top of described prefabricated bridge 17 is provided with railing 19.
The present invention by symmetry in conjunction with asymmetric boom segments erection method, avoid the putting up platform in span centre position, duration saves the time, has saved the cost setting up levelling bench and passage economically, difficulty of construction solves pier and sets up a difficult problem for difficulty. The successful exploitation of the asymmetric construction method for hanging of steel pipe stiff skeleton, does not still guarantee the quality as scheduled and completes the erection of stiff skeleton, and saved substantial amounts of work on overlay amount, save duration and cost;The method of the asymmetric lifting construction that steel pipe stiff skeleton is taked, greatly reduces cable crane, pre-splicing field, transport channel, hoisting platform etc. and faces greatly the quantities of facility. Take full advantage of equipment, in practical application, shorten the duration about 6 months, accumulative saving cost about 45,000,000 yuan.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the premise without prejudice to spirit of the present invention, and these equivalent modification or replacement are all contained in the application claim limited range.

Claims (7)

1. the construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton, it is characterised in that comprise the following steps:
S10. in the side slope in bank river valley, east, hoisting platform is set up, hoisting platform is positioned at below bridge skeleton to be set up, and extended to center, river valley by the highway of east bank, above bridge skeleton to be set up in east bank and west bank between stretch-draw track cable, track cable arranges hanging pulley, has risen and hanging pulley arranges hauling rope and hoisting rope;
S20. the boom segments of prefabricated sliceable molding bridge skeleton, is transported on hoisting platform by boom segments by the highway of east bank;
S30. hanging pulley lifting boom segments has been passed through, the symmetrical bridge skeleton end bay setting up east bank, west bank, when the bridge skeleton end bay of bank of playing the host is inserted into the boom segments directly over hoisting platform, suspend the bridge skeleton end bay of erection east bank, the bridge skeleton end bay of west bank continues to be inserted into span centre, and wait is closed up;
S40. the east bank bridge remaining boom segments of skeleton end bay is put as corresponding lifting position, described lifting position is positioned at the river valley on bridge skeleton end bay immediately below respective cantilevered segmental erection position, lift remaining boom segments by playing hanging pulley, and set up until closing up successively.
2. the construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton according to claim 1, it is characterized in that: described east bank, west bank bridge skeleton end bay all include 20 boom segments, the 13rd boom segments of the bridge skeleton end bay of east bank is positioned at the surface of described hoisting platform.
3. the construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton according to claim 1, it is characterized in that: in step S40, when boom segments is put the lifting position as correspondence, first at the bottom of the river course in leveling river valley, then boom segments is deposited in river course by steel pipe base.
4. the construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton according to claim 1, it is characterized in that: hoisting platform includes being located at the some artificial digging piles in the bank River Valley Slope of east, is located at the steel pipe column at each described artificial digging pile top, is located at the distribution beam at described steel pipe column top and is located at the Bailey beam at described distribution beam top, the platform that highway with east bank docks is formed on the top of described Bailey beam, and prefabricated bridge is laid at the top of Bailey beam.
5. the construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton according to claim 4, it is characterised in that: described steel pipe intercolumniation is provided with connection system.
6. the construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton according to claim 4, it is characterised in that: the bottom of described prefabricated bridge is provided with the limiting plate blocking described Bailey beam, and the top of described prefabricated bridge is provided with railing.
7. the construction method taking asymmetric lifting erection steel pipe stiffness bridge skeleton according to claim 4, it is characterised in that: the position that described hoisting platform docks with highway is provided with concrete basis, and described concrete basis has the step of overlap joint Bailey beam end.
CN201610052926.4A 2016-01-26 2016-01-26 A kind of construction method for taking asymmetric lifting to set up steel pipe stiffness bridge skeleton Active CN105672133B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10183999A (en) * 1996-12-25 1998-07-14 Okabe Co Ltd Method of building movable form for arched concrete body
CN101705661A (en) * 2009-11-27 2010-05-12 中铁大桥局集团第三工程有限公司 Method for constructing bridge over ravine
CN202090286U (en) * 2011-01-30 2011-12-28 中交三航局第三工程有限公司 Traction system suitable for self-anchored type double cable plane suspension bridge
CN103882798A (en) * 2014-04-03 2014-06-25 四川省交通运输厅公路规划勘察设计研究院 Reinforced concrete arch bridge of concrete filled steel tube stiff skeleton and construction method thereof
CN104278637A (en) * 2014-09-23 2015-01-14 中铁大桥局集团第一工程有限公司 No-catwalk cableway erecting method for main cable strands of suspension bridge
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10183999A (en) * 1996-12-25 1998-07-14 Okabe Co Ltd Method of building movable form for arched concrete body
CN101705661A (en) * 2009-11-27 2010-05-12 中铁大桥局集团第三工程有限公司 Method for constructing bridge over ravine
CN202090286U (en) * 2011-01-30 2011-12-28 中交三航局第三工程有限公司 Traction system suitable for self-anchored type double cable plane suspension bridge
CN103882798A (en) * 2014-04-03 2014-06-25 四川省交通运输厅公路规划勘察设计研究院 Reinforced concrete arch bridge of concrete filled steel tube stiff skeleton and construction method thereof
CN104278637A (en) * 2014-09-23 2015-01-14 中铁大桥局集团第一工程有限公司 No-catwalk cableway erecting method for main cable strands of suspension bridge
CN204282189U (en) * 2014-12-01 2015-04-22 中铁二十局集团第一工程有限公司 A kind of long-span steel pipe arch bridge assembling construction structure

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* Cited by examiner, † Cited by third party
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Effective date of registration: 20180130

Address after: Nansha District Nansha street Guangzhou city Guangdong province 510032 Port Street No. 1 Port Avenue South of Hong Kong Air China court office building No. 1 room 2502

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