CN105464008B - Large longitudinal beam system line reinforcement construction device and method - Google Patents
Large longitudinal beam system line reinforcement construction device and method Download PDFInfo
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- CN105464008B CN105464008B CN201610018189.6A CN201610018189A CN105464008B CN 105464008 B CN105464008 B CN 105464008B CN 201610018189 A CN201610018189 A CN 201610018189A CN 105464008 B CN105464008 B CN 105464008B
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- big longeron
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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Abstract
The invention discloses a large longitudinal beam system line reinforcement construction device and method. The large longitudinal beam system line reinforcement construction device comprises an overhead device erected below a rail of an existing railway, and a frame bridge arranged below the overhead device. Protection piles are arranged at the four corners of the frame bridge. The overhead device comprises fulcrum pile foundations arranged long the two sides and the middles of lines. Large longitudinal beams are arranged on the fulcrum pile foundations in the direction of the lines. H-shaped steel sleepers are arranged below the rail in a transverse penetrating mode. The two ends of each H-shaped steel sleeper are connected with the corresponding large longitudinal beams respectively. Transverse lifting beams are arranged between the upper portion of the frame bridge and the lower portions of the rail and the large longitudinal beams. Under the condition that the traffic safety of the existing railway is ensured to the maximum extent, the requirement of the large-span integrated type frame bridge on the reinforcement strength of the lines and the requirement for the line interval can be met, and labor, materials and the construction cost can be saved.
Description
Technical field
The present invention relates to a kind of existing line is reinforced construction technology when large span combined frame bridge is built,
More particularly to a kind of big longeron system circuit strengthening construction apparatus and method.
Background technology
With the fast development of modern economy, major urban arterial highway, highway, railway are also into high speed development stage, highway, ferrum
Road will certainly produce a large amount of crossings on different level, and when crossings on different level is needed, underpassing scheme will become first-selected, and because present city is handed over
The needs of logical freight volume, single hole small-bore frame bridge majority can not meet needs, large span porous combined frame bridge ability
Meet use demand.When frame bridge is built, impact will be produced on existing railway operation, and framework bridge construction bridge zone is affected
In the range of circuit to carry out pre-reinforcement be an essential ring, the ring of risk highest one when even more frame bridge undercrossing tunnel is constructed,
Therefore pre-reinforcement is carried out to railway so as to be reduced to minimum by frame bridge construction infection, it is firmly fundamental purpose that circuit keeps stable,
Do not allow the least bit lucky, at present, rail track pre-reinforcement mainly there are two methods, to lift beam method in length and breadth, another is D types to one kind
Just beam method.
During using lifting beam method hardened link in length and breadth, it is vacantly apart from smaller, if the landslide of front occurrence of large-area, to both
There is railway operation to produce very big potential safety hazard, in addition, it also needs to substitute sleeper, do rail beam, need material more, put into
Manpower is big, and construction cost is big.
Although D types construction beam can be such that rail track integrally makes somebody a mere figurehead, its reinforcing scope receives considerable restraint, normal conditions
Under, its reinforcing scope is generally up to 24m, maximum to be also less than 36m, and in addition it receives the constraint of distance between centers of tracks also larger, such as 24m-D
The use of type construction beam must meet《Railway engineering safety rule》Straightway two-wire 4.51≤a of distance between centers of tracks specified in subordinate list 2-3
The requirement of ＜ 4.81, and in many cases multiple line distance between centers of tracks is less than 4.51m, is unsatisfactory for it and sets up requirement.
The content of the invention
It is an object of the invention to provide a kind of strong adaptability, easy construction, low cost big longeron system circuit reinforce apply
Work apparatus and method.
The purpose of the present invention is achieved through the following technical solutions：
The big longeron system circuit strengthening construction device of the present invention, it is built on stilts below the rail of existing railway including being set up in
Device and the frame bridge below the overhead device, the position in four corners of the frame bridge is provided with fender pile；
The overhead device includes the fulcrum pile foundation along circuit both sides and middle setting, along suitable in the fulcrum pile foundation
Line direction is provided with big longeron, has crossed I shape steel sleeper below the rail, the two ends of the I shape steel sleeper respectively with
The big longeron connection, is provided with horizontal lift beam between the frame bridge top and the bottom of the rail and big longeron.
The method that the above-mentioned big longeron system circuit strengthening construction device of the present invention realizes anchor line (string) road strengthening construction, including
Step：
First, prop up according to the arrangement pitch hand excavation of horizontal lift beam between the both sides of existing railway and the line along line direction
Point pile foundation, and while excavate the fender pile basis of frame bridge corner；
Then, big longeron is transported using railcar, before big longeron is transported, part I-shaped is worn in advance in first horizontal path direction
Shaped steel is rested the head on, for fixing big longeron；
After big longeron is in place, the connection of the longitudinal spliced plate of big longeron is carried out, and tighten big longeron with I shape steel sleeper
Connecting bolt, then according to the arrangement pitch of I shape steel sleeper carries out the I shape steel sleeper in big longeron length range and applying and wearing, wears
Special messenger is protected with insulation rubber cushion respectively under two strands of rails during steel sleeper, prevents steel sleeper and rail directly contact from causing track electricity
Short out road, the insulation rubber cushion that steel sleeper is installed under rear rail in place is motionless, and wood is squeezed in space between rail and I shape steel sleeper
Wedge, makes the live load from train be transferred on aerial construction；
Horizontal lift beam is previously positioned at into frame bridge top surface, with Framed underpass bridge, horizontal lift beam is worn by several times and is passed through circuit, then
Timber wedge is set between horizontal lift beam and rail and big longeron, lumps of wood pile is set between horizontal lift beam and fulcrum stake and frame bridge；
When Framed underpass bridge is within fulcrum stake 1m, a neighbouring campshed of jacking will be affected in the range of Framed underpass bridge
Abolish, complete horizontal lift beam fulcrum stress system conversion, so circulation is abolished other several campsheds, makes Framed underpass bridge in place, treats frame
After bridge formation body jacking in place, the built on stilts system is removed, changes and supplement one-level railway ballast, change III type bridge tie wood, guard rail is installed,
Affiliated facility is constructed, and recovers circuit.
As seen from the above technical solution provided by the invention, big longeron system circuit provided in an embodiment of the present invention adds
Gu constructing device and method, in the case where at utmost existing railway traffic safety is ensured, adapt to large span combined frame
Build bridge to track strengthening length requirement, distance between centers of tracks is required, saves human and material resources, construction cost.
Description of the drawings
Fig. 1 is the planar structure schematic diagram of big longeron system circuit strengthening construction device provided in an embodiment of the present invention.
Fig. 2 is the longitudinal plane structure schematic diagram of big longeron system circuit strengthening construction device provided in an embodiment of the present invention.
Fig. 3 is the big longeron cross-sectional view in the embodiment of the present invention.
Fig. 4 is the I shape steel sleeper cross-sectional view in the embodiment of the present invention.
In figure：The horizontal lift beam 6- frame bridge 7- of the big longeron 3- I shapes steel sleeper 4- splice plate 5- of 1- fulcrum pile foundations 2-
Rail 8- fender piles
Specific embodiment
The embodiment of the present invention will be described in further detail below.
The big longeron system circuit strengthening construction device of the present invention, its preferably specific embodiment is：
Including the overhead device being set up in below the rail of existing railway and the frame bridge below the overhead device,
The position in four corners of the frame bridge is provided with fender pile；
The overhead device includes the fulcrum pile foundation along circuit both sides and middle setting, along suitable in the fulcrum pile foundation
Line direction is provided with big longeron, has crossed I shape steel sleeper below the rail, the two ends of the I shape steel sleeper respectively with
The big longeron connection, is provided with horizontal lift beam between the frame bridge top and the bottom of the rail and big longeron.
The above-mentioned big longeron system circuit strengthening construction device method of realizing anchor line (string) road strengthening construction of the present invention, its compared with
Good specific embodiment is：
Including step：
First, prop up according to the arrangement pitch hand excavation of horizontal lift beam between the both sides of existing railway and the line along line direction
Point pile foundation, and while excavate the fender pile basis of frame bridge corner；
Then, big longeron is transported using railcar, before big longeron is transported, part I-shaped is worn in advance in first horizontal path direction
Shaped steel is rested the head on, for fixing big longeron；
After big longeron is in place, the connection of the longitudinal spliced plate of big longeron is carried out, and tighten big longeron with I shape steel sleeper
Connecting bolt, then according to the arrangement pitch of I shape steel sleeper carries out the I shape steel sleeper in big longeron length range and applying and wearing, wears
Special messenger is protected with insulation rubber cushion respectively under two strands of rails during steel sleeper, prevents steel sleeper and rail directly contact from causing track electricity
Short out road, the insulation rubber cushion that steel sleeper is installed under rear rail in place is motionless, and wood is squeezed in space between rail and I shape steel sleeper
Wedge, makes the live load from train be transferred on aerial construction；
Horizontal lift beam is previously positioned at into frame bridge top surface, with Framed underpass bridge, horizontal lift beam is worn by several times and is passed through circuit, then
Timber wedge is set between horizontal lift beam and rail and big longeron, lumps of wood pile is set between horizontal lift beam and fulcrum stake and frame bridge；
When Framed underpass bridge is within fulcrum stake 1m, a neighbouring campshed of jacking will be affected in the range of Framed underpass bridge
Abolish, complete horizontal lift beam fulcrum stress system conversion, so circulation is abolished other several campsheds, makes Framed underpass bridge in place, treats frame
After bridge formation body jacking in place, the built on stilts system is removed, changes and supplement one-level railway ballast, change III type bridge tie wood, guard rail is installed,
Affiliated facility is constructed, and recovers circuit.
During Framed underpass bridge, when frame bridge enters subgrade soil, in eating native jack-in process, shoveling drilling depth is often circulated
Less than 2.0m, when soil property is bad, then excavate by the top Cheng Jinhang of jack, that is, dig the earthwork of a top journey, immediately jacking
The body of a bridge, makes the body of a bridge tightly cut excavation face.
Horizontal two, the lift beam is one group, and centre is attached with tightening latch.
The big longeron is that 16m length is a piece of, is supported using support bar every 1～2m along line direction.
The big longeron system circuit reinforced construction method of the present invention, in the feelings at utmost ensureing existing railway traffic safety
Under condition, large span combined frame bridge is adapted to track strengthening length requirement, distance between centers of tracks is required, can very well adapt to track strengthening
The longer framework bridge construction of length；It is less demanding to distance between centers of tracks, can be easy for meeting multiple line line by the setting of big longeron
Closely spaced situation；A large amount of manpower and materials can be saved, construction cost is reduced；Clearly, system transform is also relatively simple for structure stress
It is single, it is easily controlled.
Specific embodiment：
Referring to the drawings 1～4, including following construction procedure.
During jacking, manually open according to horizontal lift beam arrangement pitch (along line direction) first between the both sides of existing railway and line
Dig fulcrum pile foundation (1) and frame bridge corner fender pile basis (8), per campshed basis quantity according to frame structure total span with
And pile spacing comprehensively determines.Then main points are blocked using the big longerons (2) of railcar transport 16m, before big longeron is transported, is first hung down
Part I shape steel sleeper (3) is worn in advance in straight line path direction, is used for fixing big longeron.After big longeron is in place, carries out big longeron and indulge
To splice plate (4) connection, and tighten the connecting bolt of big longeron and I shape steel sleeper.Then according between I shape steel sleeper is arranged
Away from, carrying out the I shape steel sleeper in big longeron length range and apply to wear, special messenger uses respectively insulating cement under two strands of rails when wearing steel sleeper
Pad is protected, and prevents steel sleeper and rail directly contact from causing track circuit short circuit, steel sleeper to install the insulation under rear rail in place
Rubber cushion is motionless, and timber wedge is squeezed in space between rail and steel sleeper, the live load from train is transferred on aerial construction.Frame
Vacant lot section steel sleeper spacing is arranged by 60cm, not arranged when such as with horizontal lift beam (5) location overlap.Horizontal lift beam is previously positioned at frame bridge
(6) top surface, according to advance fulcrum system conversion requirement, with Framed underpass bridge, wears by several times horizontal lift beam and passes through circuit.Then in horizontal stroke
Timber wedge, horizontal lift beam and fulcrum stake are set between lift beam and rail, big longeron, lumps of wood pile is set between frame bridge.Work as frame bridge
Into subgrade soil, in eating native jack-in process, often circulate shoveling drilling depth and the gradient should be according to soil property, equipment and track strengthening situation
It is determined that, should not backbreak.Drilling depth is generally excavated every time no more than 2.0m.When soil property is bad, then should be by the top of jack
Journey (50cm) is excavated；The earthwork of a top journey is dug, immediately the jacking body of a bridge, makes the body of a bridge tightly cut excavation face.When frame bridge top
When entering within fulcrum stake 1m, the neighbouring campshed for affecting jacking to advance in the range of Framed underpass bridge is abolished, complete horizontal lift
Beam fulcrum stress system is changed, and other several campsheds are abolished in so circulation, make Framed underpass bridge in place, treat the jacking of framework pontic in place
Afterwards, built on stilts system is removed, is changed and is supplemented one-level railway ballast, change III type bridge tie wood, guard rail is installed, affiliated facility construction recovers
Circuit.
Big longeron is the high monolithic H profile steels of 1m, and the high shaped steel of the I-shaped gooseneck 0.2m, material is Q345 steel, the horizontal stroke
Lift beam is H profile steel, and model and piece are several according to determination is calculated, and material can be various kinds such as Q345 and Q235.
Horizontal lift beam rear end fulcrum falls at the top of frame bridge on roller support, and front end fulcrum falls in fulcrum stake on the line,
Horizontal lift beam and longeron, horizontal lift beam arranges the lumps of wood and timber wedge with stake top, prevents from promoting existing line in framework jack-in process
Generation is traversing.Affect driving.In order to prevent circuit rail traversing, traffic safety is affected, adopt every 1～2m along line direction and prop up
Strut is supported.
Horizontal lift beam will be calculated according to arrangement pitch and the live actual construction Work condition analogue that passes through, the horizontal lift beam type number of selection,
Material, piece number etc., in order to strengthen horizontal lift beam globality, one group of horizontal lift beam two piece, centre is attached with tightening latch.
Big longeron when distance between centers of tracks meets arrange between line the big longeron of two panels, will can expire across cloth according to on-site actual situations
Put, when being unsatisfactory for arranging that two panels is required, longeron can be shared as two station tracks only to arrange a piece of between line, but now need to set
Middle horizontal lift is put, to reduce big longeron span, its stress and deformation requirements is met.
In addition, big longeron is that 16m length is a piece of, big longeron piece number can be determined according to track strengthening length, to track strengthening
Length has very strong adaptability.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
All should be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (4)
1. a kind of big longeron system circuit reinforced construction method, it is characterised in that the big longeron system circuit reinforced construction method
It is to be realized by big longeron system circuit strengthening construction device；
The big longeron system circuit strengthening construction device include being set up in overhead device below the rail of existing railway (7) and
Frame bridge (6) below the overhead device, the position in four corners of the frame bridge (6) is provided with fender pile (8)；
The overhead device includes the fulcrum pile foundation (1) along circuit both sides and middle setting, edge on the fulcrum pile foundation (1)
Big longeron (2) is provided with along line direction, I shape steel sleeper (3), the I shape steel sleeper have been crossed below the rail (7)
(3) two ends are connected respectively with the big longeron (2), frame bridge (6) top and the rail (7) and big longeron (2)
Horizontal lift beam (5) is provided between bottom；
The big longeron system circuit reinforced construction method includes step：
First, according to arrangement pitch hand excavation's fulcrum stake of horizontal lift beam between the line of the both sides of existing railway and suitable line direction
Basis, and while excavate the fender pile basis of frame bridge corner；
Then, big longeron is transported using railcar, before big longeron is transported, part i shaped steel is worn in advance in first horizontal path direction
Pillow, for fixing big longeron；
After big longeron is in place, the connection of the longitudinal spliced plate of big longeron is carried out, and tighten the connection of big longeron and I shape steel sleeper
Bolt, then according to the arrangement pitch of I shape steel sleeper carries out the I shape steel sleeper in big longeron length range and applying and wearing, wears steel sleeper
When special messenger protected with insulation rubber cushion respectively under two strands of rails, prevent steel sleeper and rail directly contact from causing track circuit short
Road, the insulation rubber cushion that steel sleeper is installed under rear rail in place is motionless, and timber wedge is squeezed in space between rail and I shape steel sleeper, is made
Live load from train is transferred on aerial construction；
Horizontal lift beam is previously positioned at into frame bridge top surface, with Framed underpass bridge, horizontal lift beam is worn by several times and is passed through circuit, then in horizontal stroke
Timber wedge is set between lift beam and rail and big longeron, lumps of wood pile is set between horizontal lift beam and fulcrum stake and frame bridge；
When Framed underpass bridge is within fulcrum stake 1m, the neighbouring campshed that jacking is affected in the range of Framed underpass bridge is broken
Remove, complete horizontal lift beam fulcrum stress system conversion, so circulation is abolished other several campsheds, makes Framed underpass bridge in place, treats framework
After pontic jacking in place, the built on stilts system is removed, change and supplement one-level railway ballast, change III type bridge tie wood, guard rail is installed, it is attached
Category facility construction, recovers circuit.
2. big longeron system circuit reinforced construction method according to claim 1, it is characterised in that in Framed underpass bridge mistake
Cheng Zhong, when frame bridge enters subgrade soil, in eating native jack-in process, often circulates shoveling drilling depth and is less than 2.0m, when soil property it is bad
When, then excavate by the top Cheng Jinhang of jack, that is, the earthwork of a top journey is dug, immediately the jacking body of a bridge, makes the body of a bridge tightly cut excavation face.
3. big longeron system circuit reinforced construction method according to claim 1, it is characterised in that the horizontal lift Liang Lianggen
For one group, centre is attached with tightening latch.
4. big longeron system circuit reinforced construction method according to claim 1, it is characterised in that the big longeron is
16m length is a piece of, is supported using support bar every 1～2m along line direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610018189.6A CN105464008B (en) | 2016-01-12 | 2016-01-12 | Large longitudinal beam system line reinforcement construction device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610018189.6A CN105464008B (en) | 2016-01-12 | 2016-01-12 | Large longitudinal beam system line reinforcement construction device and method |
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| Publication Number | Publication Date |
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| CN105464008A CN105464008A (en) | 2016-04-06 |
| CN105464008B true CN105464008B (en) | 2017-05-03 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908579A (en) * | 2016-04-27 | 2016-08-31 | 河北钢铁股份有限公司邯郸分公司 | Railway track foundation online reinforcing method |
| CN105889624A (en) * | 2016-04-27 | 2016-08-24 | 河北钢铁股份有限公司邯郸分公司 | Construction method for underground pipeline passing through railway line |
| CN106274556B (en) * | 2016-08-05 | 2018-07-20 | 中铁六局集团天津铁路建设有限公司 | A kind of contact net bar changes shifting method |
| CN107620261B (en) * | 2017-09-14 | 2019-07-30 | 中国铁路设计集团有限公司 | Based on the horizontal existing railway track reinforcement means for holding formula just beam |
| CN110374018B (en) * | 2019-06-17 | 2021-08-31 | 中铁六局集团呼和浩特铁路建设有限公司 | Method for reinforcing combined steel large cross beam erected multi-span temporary beam line |
| CN111764286B (en) * | 2020-06-16 | 2021-04-02 | 中铁二十四局集团有限公司 | Frame bridge jacking construction method |
| CN113217002B (en) * | 2021-04-09 | 2024-02-13 | 中铁六局集团有限公司 | Construction method for jacking side positions crossing existing lines in frame culvert points |
| CN114318979B (en) * | 2021-12-31 | 2023-08-18 | 中铁六局集团石家庄铁路建设有限公司 | Automatic penetrating and pulling system and method for frame bridge jacking line reinforcement I-steel |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT380502B (en) * | 1983-02-28 | 1986-06-10 | Vorspann Technik Gmbh | METHOD AND DEVICE FOR WIDING RUNWAY PANELS, BRIDGE ROADWAYS OR THE LIKE. |
| CN101343861B (en) * | 2008-08-22 | 2010-06-02 | 中铁六局集团有限公司 | Construction method for replacing old frame bridge by new frame bridge in existing railway lines |
| DE102010016016B4 (en) * | 2010-03-18 | 2012-02-09 | Donges Steeltec Gmbh | Method for renewing longitudinal members of a bridge |
| CN102926299B (en) * | 2012-11-19 | 2014-07-16 | 房士杰 | Railway elevating and fixing device and railway bridge and culvert construction method adopting railway elevating and fixing device |
| CN203487475U (en) * | 2013-10-11 | 2014-03-19 | 中铁一局集团有限公司 | Line suspending and reinforcing structure for existing line jacking bridge and culvert construction |
| CN205348012U (en) * | 2016-01-12 | 2016-06-29 | 中铁第五勘察设计院集团有限公司 | Big longeron system circuit reinforcing construction device |
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2016
- 2016-01-12 CN CN201610018189.6A patent/CN105464008B/en active Active
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