CN102733321B - Suspension bracket system for existing bridge reinforcing and building method of suspension bracket system - Google Patents
Suspension bracket system for existing bridge reinforcing and building method of suspension bracket system Download PDFInfo
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- CN102733321B CN102733321B CN201210247601.3A CN201210247601A CN102733321B CN 102733321 B CN102733321 B CN 102733321B CN 201210247601 A CN201210247601 A CN 201210247601A CN 102733321 B CN102733321 B CN 102733321B
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- 239000000725 suspension Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 title abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 55
- 229910052742 iron Inorganic materials 0.000 claims description 24
- 239000002023 wood Substances 0.000 claims description 11
- 210000001699 lower leg Anatomy 0.000 claims description 9
- 238000005728 strengthening Methods 0.000 claims description 9
- 241000282326 Felis catus Species 0.000 claims description 7
- 239000010426 asphalt Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 15
- 238000012423 maintenance Methods 0.000 description 10
- 230000002787 reinforcement Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
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- Movable Scaffolding (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a suspension bracket system for existing bridge reinforcing and a building method of the suspension bracket system. The system comprises a wing plate, a suspension rod (1), a cross beam (2) and a scaffold plate (3), wherein the wing plate passes through an I-shaped beam (9) through a bridge deck (7); one end of the suspension rod is fixedly arranged on the bridge deck (7) and the other end of the suspension rod is suspended below the bridge deck (7); the cross beam (2) is fixedly connected with the other end of the suspension rod (1); and the scaffold plate (3) is paved along the longitudinal direction of the bridge deck (7) in a manner of supporting by using a cross beam (2). The suspension bracket system has a simple structure; and the suspension bracket system does not influence traffic on the bridge deck and below the bridge when the bridge is maintained. The construction method of the suspension bracket system is rapid and convenient and does not cause traffic stop.
Description
Technical field
The present invention relates to a kind of pipe-hanging hook system, particularly a kind of existing bridge strengthening pipe-hanging hook system.The invention still further relates to the building method of this pipe-hanging hook system.
Background technology
Along with developing rapidly of China's traffic transport industry, highway bridge construction development is swift and violent, except having built in each metropolis a large amount of viaduct and bridge crossing, high pier stud bridge and cross a river, bridge spanning the sea, at present China Yi Shi world bridge the second big country in remote mountain areas and leap location, river, have also been built up.Facing the change of Traffic Stream of Road quantum leap development, bridge design standard and the wildness of overload limit for tonnage vehicle, existing bridge is faced with heavy maintenance and management task.
Under action of long-term load, can there is the diseases such as downwarp, crack, concrete spalling, corrosion of steel bar at the bottom of its beam in bridge, thereby need to be to there being the bridge of disease to safeguard and reinforcement.Before reinforcing at the bottom of to beam, what first will do is to set up temporary construction platform.Yet, in bridge bottom, be that to set up platform be very difficult for city cross-line, cross a river or the area of crossing over mountain valley.
For city bridge crossing, general way is to set up support by track under bridge at present.Yet this can take track under bridge for a long time, disturb road traffic under bridge.
For over strait, stream crossing bridge, general floating drum or the ship of adopting set up support as temporary platform at present.But this difficulty of construction is large, expense is high, poor stability, and affect the current of river course.
For the viaduct of crossing over mountain valley, conventionally can build movably temporary construction platform by crash bearer.But the working area that this platform provides is little, cause longer construction period, cannot meet the object of quick reinforcement bridge.
Prior art discloses several temporary construction platforms that are suspended under bridge, and the use of these platforms does not affect the upper and lower road traffic of bridge, do not affect the transportation in river course.CN201144397Y discloses a kind of suspension work platform for bridge inspection and maintenance, and this platform is the integrated member being assembled into steel component truss, and during use, by the wire rope suspensioning of pontic both sides, constructor stands on working platform and constructs.Although this working platform is simple in structure, cheap, the working area that platform provides is very little, affects speed of application.
US3708038 discloses a kind of cantilever support, and it comprises: job platform, for constructor, pass in and out the Vertical Channel of platform and for making platform keep the cantilever of balance after passing in and out platform constructor.This cantilever support in use, by full circle crane, caught on the suspension apparatus that is fixed on passage top, support is hung in to the below of bridge, constructor upwards swings to touch the root edge of bridge i beam platform by certain operation after entering platform, with the pawl on platform, the root edge of platform and i beam is coupled together again, then just can carry out the maintenance work of bridge bottom.This cantilever support uses flexibly and easily, and crane is driven to the relevant position that bridge need to be safeguarded, constructor just can enter platform and start maintenance work.But when the more constructor of needs safeguards in a big way to bridge, this cantilever support obviously cannot satisfy the demands simultaneously.
US2001/0037914A1 discloses a kind of braced structures that working face displaceably can be suspended in to bridge bottom.This braced structures comprises: a plurality of clamps are in the clip of the i beam root edge of bridge, a pair of scaffold member that is arranged on the pair of tracks on clip and dangles below track.Two root edges that are arranged on respectively adjacent two i beams of described pair of tracks.Scaffold member comprises: the guide groove of lengthwise, be arranged on roller in guide groove, be fixed on guide groove the suspender belt from guide groove towards downward-extension, be connected in the suspension rod of suspender belt and be connected in suspension rod and horizontally extending crossbeam between suspension rod.Working platform is supported on crossbeam, thus can along with roller in orbit surface rolling and along track, slide.In this application, due to track has been carried out to special adaptations, so working platform can slide reposefully along the root edge of a plurality of continuous i beams.Although have above-mentioned advantage, the work plane that the working platform that this braced structures supports can provide is smaller, only limits to the region between the adjacent continuous i beam of two rows.
Therefore, for the existing operation platform of bridge inspection and maintenance, can not meet in to maintenance works such as existing bridge strengthenings uninterrupted traffic again, and many-sided requirement such as can complete fast.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of can be for to the existing bridge temporary construction platform of Fast-Maintenance on a large scale in the situation that not affecting under bridge floor and bridge traffic.
In order to solve the problems of the technologies described above, the invention provides a kind of existing bridge strengthening pipe-hanging hook system, this system comprises: suspension rod, it penetrates the wing plate of i beam from bridge floor, and one end is fixed on described bridge floor, and the other end is suspended in described bridge floor below; Crossbeam, it is fixedly connected with the described other end of described suspension rod; And scaffold floor, it is the longitudinal laying along described bridge floor in the mode with described cross beam support.The below of described scaffold floor is provided with the bearing square wood with its overlap joint.Described pipe-hanging hook system also comprises the i iron of encorbelmenting of the side bar that is arranged on bridge, described in the i iron of encorbelmenting the second suspension rod is installed, the i iron of encorbelmenting described in one end of described the second suspension rod is fixed on, the other end is suspended in the below of described side bar; The described other end of described the second suspension rod is fixedly connected with second cross beam, is equipped with along the crus secunda palm of the longitudinal extension of described bridge floor on described second cross beam.
The present invention also provides the building method of a kind of existing bridge strengthening by pipe-hanging hook system, and the method comprises the following steps: remove the asphalt surface course in bridge floor site to be holed, and get out the hole of the wing plate that penetrates i beam; By suspension rod, through described hole, so that its one end is fixed on described bridge floor, the other end is suspended in described bridge floor below; Crossbeam is fixedly connected with the described other end of described suspension rod; And the longitudinal laying along described bridge floor by scaffold floor in the mode with described cross beam support.When laying described scaffold floor, bearing square wood is set below described scaffold floor, and makes described scaffold floor and described bearing square wood overlap joint.Side bar at bridge is installed the i iron of encorbelmenting; By the second hanger erection to described in the i iron of encorbelmenting the i iron so that encorbelment described in being fixed in one end of described the second suspension rod, the other end is suspended in the below of described side bar; Second cross beam is fixedly connected with the described other end of described the second suspension rod; And the mode longitudinal laying along described bridge floor by crus secunda palm to support with described second cross beam.
Pipe-hanging hook system of the present invention has advantages of simple in structure, and when construction, system is mainly born working load and dead load.And, the bang path of load be from scaffold floor to crossbeam again to suspension rod, this for construction before design provide convenience: the load of scaffold floor and crossbeam calculates according to simply supported beam, and the load of suspension rod, calculates with axial tension member its reaction force by crossbeam.
The operation platform that pipe-hanging hook system of the present invention provides is suspended to bridge below, therefore, when using pipe-hanging hook system of the present invention to carry out bridge inspection and maintenance work, can not affect the traffic under bridge floor and bridge.
The building method of pipe-hanging hook system of the present invention has advantage quickly and easily, as punching, tying up bar, crossbeam is installed, is laid the operation that scaffold floor etc. is simple and regular.And, after the maintenance scheme of bridge is determined, the required members such as suspension rod, crossbeam can be processed in advance by required size, this can accelerate the progress of engineering again greatly.
While utilizing the building method of pipe-hanging hook system of the present invention, if half range Roadway Construction is first sealed in classifying rationally works area, half range is normally current in addition, after treating hanger erection, exchanges enclosed area and FOH, can realize the not object of interruption of bridge deck traffic.
Accompanying drawing explanation
Fig. 1 schematically shows a specific embodiment of pipe-hanging hook system of the present invention along the sectional drawing of bridge lateral.
Fig. 2 is the flow chart while utilizing the specific embodiment of the building method of pipe-hanging hook system of the present invention to carry out bridge strengthening.
Fig. 3 is while utilizing the specific embodiment of building method of pipe-hanging hook system of the present invention, bridge deck traffic is led to the schematic diagram of the example changing.
The specific embodiment
In order to understand better the present invention, existing in conjunction with a specific embodiment of the present invention explanation the present invention.This specific embodiment is only for technical scheme of the present invention is described, and non-limiting the present invention.
Fig. 1 shows a specific embodiment of pipe-hanging hook system of the present invention along the sectional drawing of bridge lateral.As can be seen from the figure, this pipe-hanging hook system comprises: suspension rod 1, and it penetrates the wing plate of i beam 9 from bridge floor 7, and one end is fixed on bridge floor 7, and the other end is suspended in bridge floor 7 belows; Crossbeam 2, it is fixedly connected with one end that suspension rod 1 is suspended in bridge floor 7 belows; And scaffold floor 3, it is the longitudinal laying along bridge floor 7 in the mode with crossbeam 2 supports.Suspension rod 1, crossbeam 2 and the scaffold floor 3 connecting in a manner described just formed the operation platform that is suspended to bridge below.
The flow chart when specific embodiment that Fig. 2 has provided the building method that utilizes pipe-hanging hook system of the present invention is carried out bridge strengthening.At Construction in Preparatory Stage, constructor can prepare construction machinery, equipment and material, processes on request each member of building pipe-hanging hook system, and for example, in one end of suspension rod 1, car goes out screw thread etc.
In order to build the pipe-hanging hook system shown in Fig. 1, what first will do is to get out at bridge floor 7 hole 6 of passing for suspension rod 1, should first the traffic of bridge floor 7 be led and be changed for this reason.Fig. 3 shows 7 traffic to bridge floor and leads the example changing.Specific practice is, along the width of bridge, road surface is divided into works area and driving district.The transition section of 100m is set in the place ahead, works area, and rear arranges the transition section of 50m.When completing bridge floor 7 borings and penetrate after suspension rod 1 in works area, open works area, and driving district is before become to works area.
For the boring step shown in Fig. 2, specifically remove the asphalt surface course in bridge floor 7 sites to be holed, and get out the hole 6 of the wing plate that penetrates i beam 9.The available core-drilling machine of holing completes.
After having holed, what next will do is through hole 6 by preprepared suspension rod 1.For one end of suspension rod 1 is stably fixed on to bridge floor 7, can with nut, be screwed on the prior screw thread going out at one end of suspension rod 1 car at suspension rod 1 through after the wing plate of i beam 9, suspension rod 1 is fixed on to bridge floor 7.Until all suspension rods 1, all with nut, be fixed on after bridge floor 7, with pitch backfill hole 6.
After all suspension rods 1 all install, the one end that crossbeam 2 and suspension rod 1 is suspended in to bridge floor 7 belows is fixed together.Crossbeam 2 can be fixed with bolt with suspension rod 1, for this reason should be in Zuan Hao hole, the appropriate location of crossbeam 2.Until all crossbeams 2 all after laterally the installing of bridge floor 7, can be along bridge floor 7 longitudinally on crossbeam 2, lay scaffold floor 3.In order to obtain more firm operation platform, when laying scaffold floor 3, bearing square wood (not shown) can be set below scaffold floor 3, between bearing square wood and scaffold floor 3, should overlap, both should be not less than certain value, for example 50mm at the length of overlap joint.In addition, scaffold floor 3 should have certain thickness, and 50mm for example, can bear enough working load.According to < < building operations reckoner > >, the desirable 2.0kN/mm of working load
2.
Through the above-mentioned boring shown in Fig. 2, penetrate suspension rod, crossbeam be installed and laid after the step of scaffold floor, just formed the operation platform that is suspended to bridge below.
From Fig. 1, it can also be seen that, the pipe-hanging hook system of this specific embodiment also comprises the i iron 4 of encorbelmenting of the side bar 8 that is arranged on bridge.The mode that the i iron 4 of encorbelmenting is installed at side bar 8 without particular limitation of, for example can on side bar 8, hole, then be fixed on side bar 8 with the conventional fastening means such as bolt, the rivet i iron 4 of encorbelmenting.The encorbelment object of i iron 4 of installation is in order to expand the above-mentioned width that is suspended to the operation platform of bridge below.Specific practice is: the second suspension rod 1 ' is arranged on to the i iron 4 of encorbelmenting, so that one end of the second suspension rod 1 ' is fixed on the i iron 4 of encorbelmenting, the other end is suspended in the below of side bar 8; The one end that second cross beam 2 ' and the second suspension rod 1 ' is suspended in to side bar 8 belows is fixed; Longitudinally laying crus secunda palm 3 ' on second cross beam 2 ' along bridge floor 7.The operation platform that is suspended to bridge below has not only increased working area after widening, and can facilitate under the constructor Xiang Qiao on bridge and transport material, also can facilitate the constructor under bridge to receive the material on bridge.
From Fig. 1, it can also be seen that, the pipe-hanging hook system of this specific embodiment also comprises the cat ladder 5 that is arranged on the i iron 4 of encorbelmenting, and one end of cat ladder 5 is fixed on the i iron 4 of encorbelmenting, and the other end is positioned at side bar 8 belows.The further convenient construction personnel of installation of cat ladder 5 pass in and out on bridge and bridge under.
As shown in Figure 2, complete one across pipe-hanging hook system build after, just can start as mentioned above next building across pipe-hanging hook system.Certainly, if the restriction of the number of not constructed also can be carried out building of multispan pipe-hanging hook system simultaneously.After each has all been built across pipe-hanging hook system, just can with the corresponding operation platform being suspended to below bridge of whole bridge floor area on start bridge the maintenance work such as to reinforce.Reinforcement is carried out according to < < highway bridge reinforcement construction technology standard > > JTG/TJ23-2008 and relevant criterion.
It should be noted that, although use above the specific embodiment that the present invention has been described, the invention is not restricted to this specific embodiment.Those skilled in the art within the spirit and scope of the present invention, can carry out various modifications, replacement or improvement to the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (6)
1. an existing bridge strengthening pipe-hanging hook system, it comprises:
Suspension rod (1), it penetrates the wing plate of i beam (9) from bridge floor (7), and one end is fixed on described bridge floor (7), and the other end is suspended in described bridge floor (7) below;
Crossbeam (2), it is fixedly connected with the described other end of described suspension rod (1); And
Scaffold floor (3), it is the longitudinal laying along described bridge floor (7) in the mode with described crossbeam (2) support,
The below of described scaffold floor (3) is provided with the bearing square wood with its overlap joint,
Described pipe-hanging hook system also comprises the i iron of encorbelmenting (4) of the side bar (8) that is arranged on bridge, the described i iron of encorbelmenting (4) is provided with the second suspension rod (1 '), the i iron (4) of encorbelmenting described in one end of described the second suspension rod (1 ') is fixed on, the other end is suspended in the below of described side bar (8); The described other end of described the second suspension rod (1 ') is fixedly connected with second cross beam (2 '), is equipped with along the crus secunda palm (3 ') of the longitudinal extension of described bridge floor (7) on described second cross beam (2 ').
2. pipe-hanging hook system according to claim 1, it is characterized in that, the described i iron of encorbelmenting (4) is also provided with cat ladder (5), the i iron (4) of encorbelmenting described in one end of described cat ladder (5) is fixed on, and the other end is positioned at the below of described side bar (8).
3. pipe-hanging hook system according to claim 1 and 2, is characterized in that, the below of described crus secunda palm (3 ') is provided with the second bearing square wood with its overlap joint.
4. a building method for pipe-hanging hook system for existing bridge strengthening, it comprises the following steps:
Remove the asphalt surface course in bridge floor (7) site to be holed, and get out the hole (6) of the wing plate that penetrates i beam (9);
By suspension rod (1), through described hole (6), so that its one end is fixed on described bridge floor (7), the other end is suspended in described bridge floor (7) below;
Crossbeam (2) is fixedly connected with the described other end of described suspension rod (1); And
With mode longitudinal laying along described bridge floor (7) by scaffold floor (3) of supporting with described crossbeam (2),
When laying described scaffold floor (3), in the below of described scaffold floor (3), bearing square wood is set, and makes described scaffold floor (3) and described bearing square wood overlap joint,
Side bar (8) at bridge is installed the i iron (4) of encorbelmenting;
The i iron (4) of encorbelmenting described in the second suspension rod (1 ') is installed to, the i iron (4) so that encorbelment described in being fixed in one end of described the second suspension rod (1 '), the other end is suspended in the below of described side bar (8);
Second cross beam (2 ') is fixedly connected with the described other end of described the second suspension rod (1 '); And
With mode longitudinal laying along described bridge floor (7) by crus secunda palm (3 ') of supporting with described second cross beam (2 ').
5. the building method of pipe-hanging hook system according to claim 4, it is characterized in that, the i iron (4) of encorbelmenting described in also comprising the steps: cat ladder (5) to be installed to, the i iron (4) so that encorbelment described in being fixed in one end of described cat ladder (5), the other end is positioned at the below of described side bar (8).
6. according to the building method of the pipe-hanging hook system described in claim 4 or 5, it is characterized in that, also comprise the steps: when laying described crus secunda palm (3 '), in the below of described crus secunda palm (3 '), the second bearing square wood is set, and makes described crus secunda palm (3 ') and described the second bearing square wood overlap joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210247601.3A CN102733321B (en) | 2012-07-17 | 2012-07-17 | Suspension bracket system for existing bridge reinforcing and building method of suspension bracket system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210247601.3A CN102733321B (en) | 2012-07-17 | 2012-07-17 | Suspension bracket system for existing bridge reinforcing and building method of suspension bracket system |
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| Publication Number | Publication Date |
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| CN102733321A CN102733321A (en) | 2012-10-17 |
| CN102733321B true CN102733321B (en) | 2014-11-19 |
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| CN201210247601.3A Active CN102733321B (en) | 2012-07-17 | 2012-07-17 | Suspension bracket system for existing bridge reinforcing and building method of suspension bracket system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726449B (en) * | 2013-12-19 | 2016-01-20 | 柳州欧维姆机械股份有限公司 | Automatically fall Liangping table apparatus and the construction method for changing railway beam thereof |
| CN104088225B (en) * | 2014-06-30 | 2016-06-15 | 葛洲坝集团电力有限责任公司 | Bridge large-span steel hanging basket and installation method thereof |
| CN106436589B (en) * | 2016-11-01 | 2018-12-04 | 宁波市交通规划设计研究院有限公司 | A kind of ruggedized construction and its method that control mountain area suspension type bridge deformation is coordinated |
| CN109722996B (en) * | 2019-03-05 | 2021-09-28 | 广东恒大路桥建设有限公司 | Suspension device for reinforcing highway bridges and construction method of suspension device |
| CN111877191A (en) * | 2020-08-19 | 2020-11-03 | 保利长大工程有限公司 | Method for reinforcing enlarged section of double-arch bridge |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6227330B1 (en) * | 1999-07-15 | 2001-05-08 | Mark A. Preusser | Support structure for suspending a work surface below a girder |
| JP2004360302A (en) * | 2003-06-05 | 2004-12-24 | Geo Frontier Kk | Suspending device for suspending scaffold for bridge and assembling construction method using this device |
| JP2008050811A (en) * | 2006-08-23 | 2008-03-06 | Ihi Corp | Movable suspended scaffolding apparatus |
| CN201144397Y (en) * | 2008-01-03 | 2008-11-05 | 肖松南 | Suspension work platform for bridge maintenance |
| CN202064292U (en) * | 2011-05-23 | 2011-12-07 | 湖南中铁五新钢模有限责任公司 | Distribution type hanging basket front hanging device |
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Effective date of registration: 20170616 Address after: 100068 Fengtai District South Fourth Ring Road, Beijing, No. 163 Patentee after: Beijing municipal administration road and bridge limited company Address before: 100068 Fengtai District South Fourth Ring Road, Beijing, No. 163 Patentee before: Beijing Road and Bridge Construction Co., Ltd. |