CN103669216A - Steel box girder scattered-splicing sliding device and installation method - Google Patents
Steel box girder scattered-splicing sliding device and installation method Download PDFInfo
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- CN103669216A CN103669216A CN201310589374.7A CN201310589374A CN103669216A CN 103669216 A CN103669216 A CN 103669216A CN 201310589374 A CN201310589374 A CN 201310589374A CN 103669216 A CN103669216 A CN 103669216A
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Abstract
The invention discloses a steel box girder scattered-splicing sliding device and an installation method and relates to the technical field of continuous steel box girder bridge construction. The steel box girder scattered-splicing sliding device and the installation method are high in adaptability, safe and reliable in construction and capable of saving large-size devices and improving the work efficiency. The device comprises a steel tube support (2), a bearing connecting beam (3) arranged at the top of the steel tube support and a sliding rail structure installed on the bearing connecting beam (3). The steel box girder scattered-splicing sliding installation method comprises the following steps that the support is erected, the sliding rail structure is installed, steel box girders are hoisted and welded in a spliced mode section by section in the hoisting position and slide to a designed position, the axes of the sectioned box girders are designed, elevation is adjusted, girth welding is conducted, and the girders are detached. The steel box girder scattered-splicing sliding device is high in adaptability, safe and reliable. The sparse sliding support is erected so that influence on the ground by construction can be reduced, foundation treatment and support usage can be reduced, the large-size devices can be omitted, the two sides of the hoisted position can be constructed at the same time, and the work efficiency of large-size hoisting devices can be improved.
Description
Technical field
The present invention relates to Steel Continuous Box beam bridge technical field of construction, particularly loose slide device and the mounting method of spelling of a kind of steel case beam.
Background technology
Along with rapid urban and economic level improve, the application of steel box girder bridge in town road reconstruction or new construction is more and more extensive, because of its plurality of advantages, usually be used to cross over the buildings such as existing railway, highway, house, dykes and dams, geographical position and ground condition are often extremely complicated, therefore construction is had higher requirement, in construction period, often must guarantee that the function of the bottom building that will cross over is normally used, should complete quickly and safely installation simultaneously.
Traditional whole hanging method is usually subject to the restrictions such as traffic condition, construction weight, crane gear, and that the loose spelling that need to set up slabbing generally need to stop use and the construction costs of bottom building is higher, and common incremental launching method also cannot be implemented under the specific conditions such as part reconstruction, space, front and back end be restricted.
Summary of the invention
In order to overcome above-mentioned defect, the technical problem to be solved in the present invention is: a kind of strong adaptability is provided, implement safe and reliable, save main equipment, increase work efficiency, loose slide device and the mounting method of spelling of steel case beam that speed of application is fast.
The present invention is that the technical scheme that solves the problems of the technologies described above employing is: the loose slide device of spelling of a kind of steel case beam, comprises steel pipe support, the load-bearing linking beam arranging at steel pipe support top, is installed on the sliding rail structure on load-bearing linking beam.
Described sliding rail structure comprises the longitudinal Bailey beam, the distribution beam in Bailey beam, the longitudinal sleeper in distribution beam that are installed on load-bearing linking beam, is installed on rail, the slipping block between steel case beam and rail on longitudinal sleeper.
Described steel pipe support is few fulcrum steel pipe support.
Between described steel pipe support, bridging is set.
Described slipping block comprises locating slip channel-section steel and tetrafluoro slide plate.
The loose slide installation method of spelling of steel case beam, comprises the steps:
The first step: set up support and mounting slip track structure
Between steel pile equipment steel pipe support, bridging is set, a top of the trellis arranges load-bearing linking beam; Steel pipe basis adopts steel pipe pile or concrete to expand basis; Sliding rail structure is arranged on support load-bearing linking beam.According to the actual geological condition at bridge location place, pouring concrete case beam is as crane operation place to select a good and unrestricted region of segment base plinth or two ends, and corresponding backing positions is as the platform for lining of steel case beam, and the rack arrangement of this part is encrypted.
Second step: at Hoisting Position segment lifting and welding steel case beam slide onto design attitude one by one
Crane is at Hoisting Position segment lifting steel case beam one by one in order, each beam section forms by several sections are horizontally-spliced on the support near lifting region, adjustment position be welded into integral body after each sections of each beam section is all in place, then utilize the traction of hoist engine and assembly pulley that this beam section is stopped after the distance of next beam segment length of slippage forward, and start to lift follow-up sections and mate with last beam section, mated the rear welding that starts this beam section, a upper beam section is continued to slippage until design attitude simultaneously, above process is carried out repeatedly until each beam section is all in place.During slippage, between steel case beam section and track, add slipping block, reduce friction to reduce tractive force, play cross spacing effect simultaneously.
The 3rd step: section box girder design axis, elevation adjustment also carried out girth welding
After each beam section straight skidding puts in place, utilize vertical jack stand, cut off this part track, if there is horizontal off normal, fallen within on longitudinal sleeper, then utilize and be supported in the sections that the horizontal jack pushing tow of the steel case beam base plate that put in place has just put in place above, recycle vertical jack and regulate its design altitude, finally fall within on sandbox; If without horizontal off normal, directly fall within on steel pipe support sandbox, all start the intersegmental girth welding of each beam after retest-ok.
The 4th step: unload beam
Continuous steel beam forms laggard line shape repetition measurement, can unload beam after qualified to permanent bearing, removes falsework.
The invention has the beneficial effects as follows:
1, the present invention suits measures to local conditions, and can overcome the many difficulties that Special geographical position or ground condition bring to construction, and compliance is very strong, implements safe and reliable.
2, the present invention combines loose spelling and slippage advantage separately, set up sparse slippage bracket and largely reduced the impact of Construction on Ground, based process and support consumption have been reduced, saved main equipment, construct simultaneously and greatly improved the operating efficiency of large lifting equipment in Hoisting Position both sides, speed of application is fast, and economic benefit is obvious.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, illustrate loose slide device and the mounting method of spelling of a kind of steel case beam of the present invention.
Fig. 1 is steel box girder sliding apparatus structure schematic diagram of the present invention;
The A portion enlarged drawing of Fig. 2 Fig. 1 of the present invention.
In figure: 1-steel case beam, 2-steel pipe support, 3-load-bearing linking beam, the longitudinal Bailey beam of 4-, 5-distribution beam, 6-longitudinal sleeper, 7-rail, 8-locating slip channel-section steel, 9-tetrafluoro slide plate.
The specific embodiment
As shown in Figure 1-2, the loose slide device of spelling of a kind of steel case beam, comprises steel pipe support 2, the load-bearing linking beam 3 arranging at steel pipe support top, is installed on the sliding rail structure on load-bearing linking beam.
Described sliding rail structure comprises the longitudinal Bailey beam 4, the distribution beam in Bailey beam 5, the longitudinal sleeper in distribution beam 6 that are installed on load-bearing linking beam, is installed on rail 7, the slipping block between steel case beam and rail on longitudinal sleeper.
Described steel pipe support is few fulcrum steel pipe support.
Between described steel pipe support, bridging is set.
Described slipping block comprises locating slip channel-section steel 8 and tetrafluoro slide plate 9.
The loose slide installation method of spelling of steel case beam, comprises the steps:
The first step: set up support and mounting slip track structure
Between steel pile equipment steel pipe support, bridging is set, a top of the trellis arranges load-bearing linking beam; Steel pipe basis adopts steel pipe pile or concrete to expand basis; Sliding rail structure is arranged on support load-bearing linking beam.According to the actual geological condition at bridge location place, pouring concrete case beam is as crane operation place to select a good and unrestricted region of segment base plinth or two ends, and corresponding backing positions is as the platform for lining of steel case beam, and the rack arrangement of this part is encrypted.
Second step: at Hoisting Position segment lifting and welding steel case beam slide onto design attitude one by one
Crane is at Hoisting Position segment lifting steel case beam one by one in order, each beam section forms by several sections are horizontally-spliced on the support near lifting region, adjustment position be welded into integral body after each sections of each beam section is all in place, then utilize the traction of hoist engine and assembly pulley that this beam section is stopped after the distance of next beam segment length of slippage forward, and start to lift follow-up sections and mate with last beam section, mated the rear welding that starts this beam section, a upper beam section is continued to slippage until design attitude simultaneously, above process is carried out repeatedly until each beam section is all in place.During slippage, between steel case beam section and track, add slipping block, reduce friction to reduce tractive force, play cross spacing effect simultaneously.
The 3rd step: section box girder design axis, elevation adjustment also carried out girth welding
After each beam section straight skidding puts in place, utilize vertical jack stand, cut off this part track, if there is horizontal off normal, fallen within on longitudinal sleeper, then utilize and be supported in the sections that the horizontal jack pushing tow of the steel case beam base plate that put in place has just put in place above, recycle vertical jack and regulate its design altitude, finally fall within on sandbox; If without horizontal off normal, directly fall within on steel pipe support sandbox, all start the intersegmental girth welding of each beam after retest-ok.
The 4th step: unload beam
Continuous steel beam forms laggard line shape repetition measurement, can unload beam after qualified to permanent bearing, removes falsework.
Steel pipe support in the described first step is arranged sparse, can adapt to the special geographical position condition of end bay and reduce measures engineering amount.
In sliding rail structure in the described first step, Bailey beam sheet number should carry out calculative determination according to steel case beam size and weight, and orbit plane position and elevation can meet the beam stress requirement of steel case and conveniently unload beam.
Near steel pipe support lifting region in the described first step is arranged comparatively intensive, can meet the loose requirement of spelling of Hoisting Position place steel case beam.
In described second step, steel case beam beam section adopts and slides onto the other end from one end; Or from two ends respectively to middle slippage; Or, respectively to two ends slippage, finally in centre, join the two sections of a bridge, etc from centre.
When last the hoisting beam section in described second step is closure section construction, the steel case beam of front end or rear end need be jack-uped after about 5cm, last beam section is inserted to design attitude.
Should be understood that, the above-mentioned specific embodiment of the present invention is only for exemplary illustration or explain principle of the present invention, and do not form the restriction to invention.Therefore any modification of, making, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in without departing from the spirit and scope of the present invention in the situation that.In addition, claims of the present invention are intended to contain whole variations and the modification in the equivalents that falls into claims scope and border or this scope and border.
Claims (6)
1. the loose slide device of spelling of steel case beam, is characterized in that: comprise steel pipe support (2), the load-bearing linking beam (3) arranging at steel pipe support top, be installed on the sliding rail structure on load-bearing linking beam.
2. the loose slide device of spelling of steel case beam according to claim 1, is characterized in that: described sliding rail structure comprises longitudinal Bailey beam (4) of being installed on load-bearing linking beam, be positioned at distribution beam (5) in Bailey beam, be positioned at longitudinal sleeper (6) in distribution beam, be installed on rail (7), the slipping block between steel case beam and rail on longitudinal sleeper.
3. the loose slide device of spelling of steel case beam according to claim 1, is characterized in that: described steel pipe support is few fulcrum steel pipe support.
4. according to the loose slide device of spelling of the steel case beam described in claim 1 or 3, it is characterized in that: between described steel pipe support, bridging is set.
5. the loose slide device of spelling of steel case beam according to claim 1 and 2, is characterized in that: described slipping block comprises locating slip channel-section steel (8) and tetrafluoro slide plate (9).
6. the loose slide installation method of spelling of steel case beam, is characterized in that comprising the steps:
The first step: set up support and mounting slip track structure
Between steel pile equipment steel pipe support, bridging is set, a top of the trellis arranges load-bearing linking beam; Steel pipe basis adopts steel pipe pile or concrete to expand basis; Sliding rail structure is arranged on support load-bearing linking beam; According to the actual geological condition at bridge location place, pouring concrete case beam is as crane operation place to select a good and unrestricted region of segment base plinth or two ends, and corresponding backing positions is as the platform for lining of steel case beam, and the rack arrangement of this part is encrypted;
Second step: at Hoisting Position segment lifting and welding steel case beam slide onto design attitude one by one
Crane is at Hoisting Position segment lifting steel case beam one by one in order, each beam section forms by several sections are horizontally-spliced on the support near lifting region, adjustment position be welded into integral body after each sections of each beam section is all in place, then utilize the traction of hoist engine and assembly pulley that this beam section is stopped after the distance of next beam segment length of slippage forward, and start to lift follow-up sections and mate with last beam section, mated the rear welding that starts this beam section, a upper beam section is continued to slippage until design attitude simultaneously, above process is carried out repeatedly until each beam section is all in place, during slippage, between steel case beam section and track, add slipping block, reduce friction to reduce tractive force, play cross spacing effect simultaneously,
The 3rd step: section box girder design axis, elevation adjustment also carried out girth welding
After each beam section straight skidding puts in place, utilize vertical jack stand, cut off this part track, if there is horizontal off normal, fallen within on longitudinal sleeper, then utilize and be supported in the sections that the horizontal jack pushing tow of the steel case beam base plate that put in place has just put in place above, recycle vertical jack and regulate its design altitude, finally fall within on sandbox; If without horizontal off normal, directly fall within on steel pipe support sandbox, all start the intersegmental girth welding of each beam after retest-ok;
The 4th step: unload beam
Continuous steel beam forms laggard line shape repetition measurement, can unload beam after qualified to permanent bearing, removes falsework.
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| CN201310589374.7A CN103669216A (en) | 2013-11-21 | 2013-11-21 | Steel box girder scattered-splicing sliding device and installation method |
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| CN104631325A (en) * | 2014-12-22 | 2015-05-20 | 盈都桥梁钢构工程有限公司 | Single-span steel box girder pushing method for viaduct |
| CN105507155A (en) * | 2015-12-04 | 2016-04-20 | 上海市基础工程集团有限公司 | Construction process for installation of small-segment steel box girder |
| CN105544406A (en) * | 2016-01-28 | 2016-05-04 | 中铁上海工程局集团华海工程有限公司 | Sliding-type Bailey beam dismantling device and dismantling method thereof |
| CN105625194A (en) * | 2016-03-03 | 2016-06-01 | 中铁第六勘察设计院集团有限公司 | Transverse movement in-position construction method of cable-stayed bridge |
| CN106320178A (en) * | 2016-08-24 | 2017-01-11 | 武汉武船重型装备工程有限责任公司 | Bridge structure hoisting method and bridge hoisting mechanism slide device |
| CN106522112A (en) * | 2016-12-30 | 2017-03-22 | 中交路桥华南工程有限公司 | Cable-stayed bridge side span beam section erecting system and method thereof |
| CN106592439A (en) * | 2016-12-28 | 2017-04-26 | 中交路桥华南工程有限公司 | Steel box girder slide traction system and construction method thereof |
| CN107059626A (en) * | 2016-12-22 | 2017-08-18 | 浙江大学 | A kind of rapid constructing method of the horizontal piecemeal longitudinal divisionses of overhead road of city steel box girder bridge |
| CN108203931A (en) * | 2018-03-09 | 2018-06-26 | 中铁十六局集团第三工程有限公司 | A kind of steel box-girder slides bracket |
| CN108221701A (en) * | 2018-03-09 | 2018-06-29 | 中铁十六局集团第三工程有限公司 | A kind of steel box-girder mounting bracket |
| CN108360385A (en) * | 2018-03-03 | 2018-08-03 | 中交第二航务工程局有限公司 | A kind of steel box-girder lifting limiting buffer construction method |
| CN108396632A (en) * | 2018-02-02 | 2018-08-14 | 安徽省交通控股集团有限公司 | Reduce the method for PK combination girder stayed-cable bridge auxiliary pier pier top girder hogging moments |
| CN108978484A (en) * | 2018-08-23 | 2018-12-11 | 中交路桥建设有限公司 | A kind of curved bridge steel box-girder sliding method assembling and construction method |
| CN109281255A (en) * | 2018-10-26 | 2019-01-29 | 中交路桥华南工程有限公司 | Girder steel slippage bracket and system |
| CN109281254A (en) * | 2018-10-26 | 2019-01-29 | 中交路桥华南工程有限公司 | Girder steel slide device and system |
| CN110578301A (en) * | 2019-09-19 | 2019-12-17 | 常州市市政建设工程有限公司 | Steel box girder longitudinal and transverse sliding construction process |
| CN110593117A (en) * | 2019-09-27 | 2019-12-20 | 宁波大学 | Steel box girder installation system and construction method thereof |
| CN110629681A (en) * | 2019-09-26 | 2019-12-31 | 常州市市政建设工程有限公司 | Multi-span steel box girder construction process |
| CN112252187A (en) * | 2020-09-02 | 2021-01-22 | 中铁五局集团第四工程有限责任公司 | In-situ scattered assembling and hoisting method for steel box girder |
| CN112301894A (en) * | 2020-10-21 | 2021-02-02 | 南京交通工程有限公司 | Steel box girder positioning device and steel box girder construction method for large-span bridge |
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| CN114703757A (en) * | 2022-04-13 | 2022-07-05 | 中交路桥建设有限公司 | Multifunctional support for steel cross beam of cable-stayed bridge and assembling method of steel cross beam |
| CN115182255A (en) * | 2022-06-27 | 2022-10-14 | 中建八局第三建设有限公司 | Construction device and construction method for large-span variable-section hyperbolic reinforced concrete composite bridge |
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| CN114703757A (en) * | 2022-04-13 | 2022-07-05 | 中交路桥建设有限公司 | Multifunctional support for steel cross beam of cable-stayed bridge and assembling method of steel cross beam |
| CN114703757B (en) * | 2022-04-13 | 2024-04-19 | 中交路桥建设有限公司 | Multifunctional bracket for steel cross beam of cable-stayed bridge and assembly method of steel cross beam |
| CN115182255A (en) * | 2022-06-27 | 2022-10-14 | 中建八局第三建设有限公司 | Construction device and construction method for large-span variable-section hyperbolic reinforced concrete composite bridge |
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Application publication date: 20140326 |